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75c0bdf4 TW |
1 | /* Python interface to btrace instruction history. |
2 | ||
42a4f53d | 3 | Copyright 2016-2019 Free Software Foundation, Inc. |
75c0bdf4 TW |
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 | 26 | #include "py-record-btrace.h" |
4a4495d6 | 27 | #include "record-btrace.h" |
75c0bdf4 | 28 | #include "disasm.h" |
0d12e84c | 29 | #include "gdbarch.h" |
75c0bdf4 TW |
30 | |
31 | #if defined (IS_PY3K) | |
32 | ||
33 | #define BTPY_PYSLICE(x) (x) | |
34 | ||
35 | #else | |
36 | ||
37 | #define BTPY_PYSLICE(x) ((PySliceObject *) x) | |
38 | ||
39 | #endif | |
40 | ||
75c0bdf4 TW |
41 | /* Python object for btrace record lists. */ |
42 | ||
43 | typedef struct { | |
44 | PyObject_HEAD | |
45 | ||
46 | /* The thread this list belongs to. */ | |
00431a78 | 47 | thread_info *thread; |
75c0bdf4 TW |
48 | |
49 | /* The first index being part of this list. */ | |
50 | Py_ssize_t first; | |
51 | ||
52 | /* The last index begin part of this list. */ | |
53 | Py_ssize_t last; | |
54 | ||
55 | /* Stride size. */ | |
56 | Py_ssize_t step; | |
57 | ||
0ed5da75 | 58 | /* Either &BTPY_CALL_TYPE or &RECPY_INSN_TYPE. */ |
75c0bdf4 TW |
59 | PyTypeObject* element_type; |
60 | } btpy_list_object; | |
61 | ||
75c0bdf4 TW |
62 | /* Python type for btrace lists. */ |
63 | ||
64 | static PyTypeObject btpy_list_type = { | |
65 | PyVarObject_HEAD_INIT (NULL, 0) | |
66 | }; | |
67 | ||
0ed5da75 TW |
68 | /* Returns either a btrace_insn for the given Python gdb.RecordInstruction |
69 | object or sets an appropriate Python exception and returns NULL. */ | |
75c0bdf4 | 70 | |
0ed5da75 TW |
71 | static const btrace_insn * |
72 | btrace_insn_from_recpy_insn (const PyObject * const pyobject) | |
75c0bdf4 | 73 | { |
0ed5da75 TW |
74 | const btrace_insn *insn; |
75 | const recpy_element_object *obj; | |
76 | thread_info *tinfo; | |
77 | btrace_insn_iterator iter; | |
75c0bdf4 | 78 | |
0ed5da75 TW |
79 | if (Py_TYPE (pyobject) != &recpy_insn_type) |
80 | { | |
81 | PyErr_Format (gdbpy_gdb_error, _("Must be gdb.RecordInstruction")); | |
82 | return NULL; | |
83 | } | |
75c0bdf4 | 84 | |
0ed5da75 | 85 | obj = (const recpy_element_object *) pyobject; |
00431a78 | 86 | tinfo = obj->thread; |
75c0bdf4 | 87 | |
0ed5da75 TW |
88 | if (tinfo == NULL || btrace_is_empty (tinfo)) |
89 | { | |
90 | PyErr_Format (gdbpy_gdb_error, _("No such instruction.")); | |
91 | return NULL; | |
92 | } | |
93 | ||
94 | if (btrace_find_insn_by_number (&iter, &tinfo->btrace, obj->number) == 0) | |
95 | { | |
96 | PyErr_Format (gdbpy_gdb_error, _("No such instruction.")); | |
97 | return NULL; | |
98 | } | |
99 | ||
100 | insn = btrace_insn_get (&iter); | |
101 | if (insn == NULL) | |
102 | { | |
103 | PyErr_Format (gdbpy_gdb_error, _("Not a valid instruction.")); | |
104 | return NULL; | |
105 | } | |
106 | ||
107 | return insn; | |
75c0bdf4 TW |
108 | } |
109 | ||
14f819c8 TW |
110 | /* Returns either a btrace_function for the given Python |
111 | gdb.RecordFunctionSegment object or sets an appropriate Python exception and | |
112 | returns NULL. */ | |
113 | ||
114 | static const btrace_function * | |
115 | btrace_func_from_recpy_func (const PyObject * const pyobject) | |
116 | { | |
117 | const btrace_function *func; | |
118 | const recpy_element_object *obj; | |
119 | thread_info *tinfo; | |
120 | btrace_call_iterator iter; | |
121 | ||
122 | if (Py_TYPE (pyobject) != &recpy_func_type) | |
123 | { | |
124 | PyErr_Format (gdbpy_gdb_error, _("Must be gdb.RecordFunctionSegment")); | |
125 | return NULL; | |
126 | } | |
127 | ||
128 | obj = (const recpy_element_object *) pyobject; | |
00431a78 | 129 | tinfo = obj->thread; |
14f819c8 TW |
130 | |
131 | if (tinfo == NULL || btrace_is_empty (tinfo)) | |
132 | { | |
133 | PyErr_Format (gdbpy_gdb_error, _("No such function segment.")); | |
134 | return NULL; | |
135 | } | |
136 | ||
137 | if (btrace_find_call_by_number (&iter, &tinfo->btrace, obj->number) == 0) | |
138 | { | |
139 | PyErr_Format (gdbpy_gdb_error, _("No such function segment.")); | |
140 | return NULL; | |
141 | } | |
142 | ||
143 | func = btrace_call_get (&iter); | |
144 | if (func == NULL) | |
145 | { | |
146 | PyErr_Format (gdbpy_gdb_error, _("Not a valid function segment.")); | |
147 | return NULL; | |
148 | } | |
149 | ||
150 | return func; | |
151 | } | |
152 | ||
913aeadd | 153 | /* Looks at the recorded item with the number NUMBER and create a |
0ed5da75 | 154 | gdb.RecordInstruction or gdb.RecordGap object for it accordingly. */ |
75c0bdf4 TW |
155 | |
156 | static PyObject * | |
00431a78 | 157 | btpy_insn_or_gap_new (thread_info *tinfo, Py_ssize_t number) |
75c0bdf4 | 158 | { |
913aeadd TW |
159 | btrace_insn_iterator iter; |
160 | int err_code; | |
161 | ||
162 | btrace_find_insn_by_number (&iter, &tinfo->btrace, number); | |
163 | err_code = btrace_insn_get_error (&iter); | |
164 | ||
165 | if (err_code != 0) | |
166 | { | |
167 | const btrace_config *config; | |
168 | const char *err_string; | |
169 | ||
170 | config = btrace_conf (&tinfo->btrace); | |
171 | err_string = btrace_decode_error (config->format, err_code); | |
172 | ||
173 | return recpy_gap_new (err_code, err_string, number); | |
174 | } | |
175 | ||
00431a78 | 176 | return recpy_insn_new (tinfo, RECORD_METHOD_BTRACE, number); |
75c0bdf4 TW |
177 | } |
178 | ||
75c0bdf4 TW |
179 | /* Create a new gdb.BtraceList object. */ |
180 | ||
181 | static PyObject * | |
00431a78 | 182 | btpy_list_new (thread_info *thread, Py_ssize_t first, Py_ssize_t last, Py_ssize_t step, |
75c0bdf4 TW |
183 | PyTypeObject *element_type) |
184 | { | |
185 | btpy_list_object * const obj = PyObject_New (btpy_list_object, | |
186 | &btpy_list_type); | |
187 | ||
188 | if (obj == NULL) | |
189 | return NULL; | |
190 | ||
00431a78 | 191 | obj->thread = thread; |
75c0bdf4 TW |
192 | obj->first = first; |
193 | obj->last = last; | |
194 | obj->step = step; | |
195 | obj->element_type = element_type; | |
196 | ||
197 | return (PyObject *) obj; | |
198 | } | |
199 | ||
0ed5da75 TW |
200 | /* Implementation of RecordInstruction.sal [gdb.Symtab_and_line] for btrace. |
201 | Returns the SAL associated with this instruction. */ | |
75c0bdf4 | 202 | |
0ed5da75 TW |
203 | PyObject * |
204 | recpy_bt_insn_sal (PyObject *self, void *closure) | |
75c0bdf4 | 205 | { |
0ed5da75 | 206 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 TW |
207 | PyObject *result = NULL; |
208 | ||
75c0bdf4 | 209 | if (insn == NULL) |
0ed5da75 | 210 | return NULL; |
75c0bdf4 | 211 | |
a70b8144 | 212 | try |
75c0bdf4 TW |
213 | { |
214 | result = symtab_and_line_to_sal_object (find_pc_line (insn->pc, 0)); | |
215 | } | |
230d2906 | 216 | catch (const gdb_exception &except) |
75c0bdf4 TW |
217 | { |
218 | GDB_PY_HANDLE_EXCEPTION (except); | |
219 | } | |
75c0bdf4 TW |
220 | |
221 | return result; | |
222 | } | |
223 | ||
0ed5da75 TW |
224 | /* Implementation of RecordInstruction.pc [int] for btrace. |
225 | Returns the instruction address. */ | |
75c0bdf4 | 226 | |
0ed5da75 TW |
227 | PyObject * |
228 | recpy_bt_insn_pc (PyObject *self, void *closure) | |
75c0bdf4 | 229 | { |
0ed5da75 | 230 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 | 231 | |
75c0bdf4 | 232 | if (insn == NULL) |
0ed5da75 | 233 | return NULL; |
75c0bdf4 TW |
234 | |
235 | return gdb_py_long_from_ulongest (insn->pc); | |
236 | } | |
237 | ||
0ed5da75 TW |
238 | /* Implementation of RecordInstruction.size [int] for btrace. |
239 | Returns the instruction size. */ | |
75c0bdf4 | 240 | |
0ed5da75 TW |
241 | PyObject * |
242 | recpy_bt_insn_size (PyObject *self, void *closure) | |
75c0bdf4 | 243 | { |
0ed5da75 | 244 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 | 245 | |
75c0bdf4 | 246 | if (insn == NULL) |
0ed5da75 | 247 | return NULL; |
75c0bdf4 TW |
248 | |
249 | return PyInt_FromLong (insn->size); | |
250 | } | |
251 | ||
0ed5da75 | 252 | /* Implementation of RecordInstruction.is_speculative [bool] for btrace. |
75c0bdf4 TW |
253 | Returns if this instruction was executed speculatively. */ |
254 | ||
0ed5da75 TW |
255 | PyObject * |
256 | recpy_bt_insn_is_speculative (PyObject *self, void *closure) | |
75c0bdf4 | 257 | { |
0ed5da75 | 258 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 | 259 | |
75c0bdf4 | 260 | if (insn == NULL) |
0ed5da75 | 261 | return NULL; |
75c0bdf4 TW |
262 | |
263 | if (insn->flags & BTRACE_INSN_FLAG_SPECULATIVE) | |
264 | Py_RETURN_TRUE; | |
265 | else | |
266 | Py_RETURN_FALSE; | |
267 | } | |
268 | ||
0ed5da75 | 269 | /* Implementation of RecordInstruction.data [buffer] for btrace. |
75c0bdf4 TW |
270 | Returns raw instruction data. */ |
271 | ||
0ed5da75 TW |
272 | PyObject * |
273 | recpy_bt_insn_data (PyObject *self, void *closure) | |
75c0bdf4 | 274 | { |
0ed5da75 | 275 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
075c55e0 | 276 | gdb::byte_vector buffer; |
75c0bdf4 TW |
277 | PyObject *object; |
278 | ||
75c0bdf4 | 279 | if (insn == NULL) |
0ed5da75 | 280 | return NULL; |
75c0bdf4 | 281 | |
a70b8144 | 282 | try |
75c0bdf4 | 283 | { |
075c55e0 TT |
284 | buffer.resize (insn->size); |
285 | read_memory (insn->pc, buffer.data (), insn->size); | |
75c0bdf4 | 286 | } |
230d2906 | 287 | catch (const gdb_exception &except) |
75c0bdf4 | 288 | { |
75c0bdf4 TW |
289 | GDB_PY_HANDLE_EXCEPTION (except); |
290 | } | |
75c0bdf4 | 291 | |
075c55e0 TT |
292 | object = PyBytes_FromStringAndSize ((const char *) buffer.data (), |
293 | insn->size); | |
75c0bdf4 TW |
294 | |
295 | if (object == NULL) | |
296 | return NULL; | |
297 | ||
cee59b3f | 298 | #ifdef IS_PY3K |
75c0bdf4 | 299 | return PyMemoryView_FromObject (object); |
cee59b3f TW |
300 | #else |
301 | return PyBuffer_FromObject (object, 0, Py_END_OF_BUFFER); | |
302 | #endif | |
303 | ||
75c0bdf4 TW |
304 | } |
305 | ||
0ed5da75 TW |
306 | /* Implementation of RecordInstruction.decoded [str] for btrace. |
307 | Returns the instruction as human readable string. */ | |
75c0bdf4 | 308 | |
0ed5da75 TW |
309 | PyObject * |
310 | recpy_bt_insn_decoded (PyObject *self, void *closure) | |
75c0bdf4 | 311 | { |
0ed5da75 | 312 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 TW |
313 | string_file strfile; |
314 | ||
75c0bdf4 | 315 | if (insn == NULL) |
0ed5da75 | 316 | return NULL; |
75c0bdf4 | 317 | |
a70b8144 | 318 | try |
75c0bdf4 TW |
319 | { |
320 | gdb_print_insn (target_gdbarch (), insn->pc, &strfile, NULL); | |
321 | } | |
230d2906 | 322 | catch (const gdb_exception &except) |
75c0bdf4 TW |
323 | { |
324 | gdbpy_convert_exception (except); | |
325 | return NULL; | |
326 | } | |
75c0bdf4 TW |
327 | |
328 | ||
329 | return PyBytes_FromString (strfile.string ().c_str ()); | |
330 | } | |
331 | ||
14f819c8 TW |
332 | /* Implementation of RecordFunctionSegment.level [int] for btrace. |
333 | Returns the call level. */ | |
75c0bdf4 | 334 | |
14f819c8 TW |
335 | PyObject * |
336 | recpy_bt_func_level (PyObject *self, void *closure) | |
75c0bdf4 | 337 | { |
14f819c8 TW |
338 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
339 | thread_info *tinfo; | |
75c0bdf4 | 340 | |
75c0bdf4 | 341 | if (func == NULL) |
14f819c8 | 342 | return NULL; |
75c0bdf4 | 343 | |
00431a78 | 344 | tinfo = ((recpy_element_object *) self)->thread; |
14f819c8 | 345 | return PyInt_FromLong (tinfo->btrace.level + func->level); |
75c0bdf4 TW |
346 | } |
347 | ||
14f819c8 TW |
348 | /* Implementation of RecordFunctionSegment.symbol [gdb.Symbol] for btrace. |
349 | Returns the symbol associated with this function call. */ | |
75c0bdf4 | 350 | |
14f819c8 TW |
351 | PyObject * |
352 | recpy_bt_func_symbol (PyObject *self, void *closure) | |
75c0bdf4 | 353 | { |
14f819c8 | 354 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
75c0bdf4 | 355 | |
75c0bdf4 | 356 | if (func == NULL) |
14f819c8 | 357 | return NULL; |
75c0bdf4 TW |
358 | |
359 | if (func->sym == NULL) | |
360 | Py_RETURN_NONE; | |
361 | ||
362 | return symbol_to_symbol_object (func->sym); | |
363 | } | |
364 | ||
14f819c8 TW |
365 | /* Implementation of RecordFunctionSegment.instructions [list] for btrace. |
366 | Returns the list of instructions that belong to this function call. */ | |
75c0bdf4 | 367 | |
14f819c8 TW |
368 | PyObject * |
369 | recpy_bt_func_instructions (PyObject *self, void *closure) | |
75c0bdf4 | 370 | { |
14f819c8 | 371 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
75c0bdf4 TW |
372 | unsigned int len; |
373 | ||
75c0bdf4 | 374 | if (func == NULL) |
14f819c8 | 375 | return NULL; |
75c0bdf4 | 376 | |
0860c437 | 377 | len = func->insn.size (); |
75c0bdf4 TW |
378 | |
379 | /* Gaps count as one instruction. */ | |
380 | if (len == 0) | |
381 | len = 1; | |
382 | ||
00431a78 | 383 | return btpy_list_new (((recpy_element_object *) self)->thread, |
14f819c8 TW |
384 | func->insn_offset, func->insn_offset + len, 1, |
385 | &recpy_insn_type); | |
75c0bdf4 TW |
386 | } |
387 | ||
14f819c8 TW |
388 | /* Implementation of RecordFunctionSegment.up [RecordFunctionSegment] for |
389 | btrace. Returns the caller / returnee of this function. */ | |
75c0bdf4 | 390 | |
14f819c8 TW |
391 | PyObject * |
392 | recpy_bt_func_up (PyObject *self, void *closure) | |
75c0bdf4 | 393 | { |
14f819c8 | 394 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
75c0bdf4 | 395 | |
75c0bdf4 | 396 | if (func == NULL) |
14f819c8 | 397 | return NULL; |
75c0bdf4 | 398 | |
42bfe59e | 399 | if (func->up == 0) |
75c0bdf4 TW |
400 | Py_RETURN_NONE; |
401 | ||
00431a78 | 402 | return recpy_func_new (((recpy_element_object *) self)->thread, |
42bfe59e | 403 | RECORD_METHOD_BTRACE, func->up); |
75c0bdf4 TW |
404 | } |
405 | ||
14f819c8 TW |
406 | /* Implementation of RecordFunctionSegment.prev [RecordFunctionSegment] for |
407 | btrace. Returns a previous segment of this function. */ | |
75c0bdf4 | 408 | |
14f819c8 TW |
409 | PyObject * |
410 | recpy_bt_func_prev (PyObject *self, void *closure) | |
75c0bdf4 | 411 | { |
14f819c8 | 412 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
75c0bdf4 | 413 | |
75c0bdf4 | 414 | if (func == NULL) |
14f819c8 | 415 | return NULL; |
75c0bdf4 | 416 | |
4aeb0dfc | 417 | if (func->prev == 0) |
75c0bdf4 TW |
418 | Py_RETURN_NONE; |
419 | ||
00431a78 | 420 | return recpy_func_new (((recpy_element_object *) self)->thread, |
4aeb0dfc | 421 | RECORD_METHOD_BTRACE, func->prev); |
75c0bdf4 TW |
422 | } |
423 | ||
14f819c8 TW |
424 | /* Implementation of RecordFunctionSegment.next [RecordFunctionSegment] for |
425 | btrace. Returns a following segment of this function. */ | |
75c0bdf4 | 426 | |
14f819c8 TW |
427 | PyObject * |
428 | recpy_bt_func_next (PyObject *self, void *closure) | |
75c0bdf4 | 429 | { |
14f819c8 | 430 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
75c0bdf4 | 431 | |
75c0bdf4 | 432 | if (func == NULL) |
14f819c8 | 433 | return NULL; |
75c0bdf4 | 434 | |
4aeb0dfc | 435 | if (func->next == 0) |
75c0bdf4 TW |
436 | Py_RETURN_NONE; |
437 | ||
00431a78 | 438 | return recpy_func_new (((recpy_element_object *) self)->thread, |
4aeb0dfc | 439 | RECORD_METHOD_BTRACE, func->next); |
75c0bdf4 TW |
440 | } |
441 | ||
442 | /* Implementation of BtraceList.__len__ (self) -> int. */ | |
443 | ||
444 | static Py_ssize_t | |
445 | btpy_list_length (PyObject *self) | |
446 | { | |
447 | const btpy_list_object * const obj = (btpy_list_object *) self; | |
448 | const Py_ssize_t distance = obj->last - obj->first; | |
449 | const Py_ssize_t result = distance / obj->step; | |
450 | ||
451 | if ((distance % obj->step) == 0) | |
452 | return result; | |
453 | ||
454 | return result + 1; | |
455 | } | |
456 | ||
457 | /* Implementation of | |
458 | BtraceList.__getitem__ (self, key) -> BtraceInstruction and | |
459 | BtraceList.__getitem__ (self, key) -> BtraceFunctionCall. */ | |
460 | ||
461 | static PyObject * | |
462 | btpy_list_item (PyObject *self, Py_ssize_t index) | |
463 | { | |
464 | const btpy_list_object * const obj = (btpy_list_object *) self; | |
0ed5da75 | 465 | Py_ssize_t number; |
75c0bdf4 TW |
466 | |
467 | if (index < 0 || index >= btpy_list_length (self)) | |
468 | return PyErr_Format (PyExc_IndexError, _("Index out of range: %zd."), | |
469 | index); | |
470 | ||
0ed5da75 TW |
471 | number = obj->first + (obj->step * index); |
472 | ||
473 | if (obj->element_type == &recpy_insn_type) | |
00431a78 | 474 | return recpy_insn_new (obj->thread, RECORD_METHOD_BTRACE, number); |
0ed5da75 | 475 | else |
00431a78 | 476 | return recpy_func_new (obj->thread, RECORD_METHOD_BTRACE, number); |
75c0bdf4 TW |
477 | } |
478 | ||
479 | /* Implementation of BtraceList.__getitem__ (self, slice) -> BtraceList. */ | |
480 | ||
481 | static PyObject * | |
482 | btpy_list_slice (PyObject *self, PyObject *value) | |
483 | { | |
484 | const btpy_list_object * const obj = (btpy_list_object *) self; | |
485 | const Py_ssize_t length = btpy_list_length (self); | |
486 | Py_ssize_t start, stop, step, slicelength; | |
487 | ||
488 | if (PyInt_Check (value)) | |
489 | { | |
490 | Py_ssize_t index = PyInt_AsSsize_t (value); | |
491 | ||
492 | /* Emulate Python behavior for negative indices. */ | |
493 | if (index < 0) | |
494 | index += length; | |
495 | ||
496 | return btpy_list_item (self, index); | |
497 | } | |
498 | ||
499 | if (!PySlice_Check (value)) | |
500 | return PyErr_Format (PyExc_TypeError, _("Index must be int or slice.")); | |
501 | ||
502 | if (0 != PySlice_GetIndicesEx (BTPY_PYSLICE (value), length, &start, &stop, | |
503 | &step, &slicelength)) | |
504 | return NULL; | |
505 | ||
00431a78 | 506 | return btpy_list_new (obj->thread, obj->first + obj->step * start, |
75c0bdf4 TW |
507 | obj->first + obj->step * stop, obj->step * step, |
508 | obj->element_type); | |
509 | } | |
510 | ||
511 | /* Helper function that returns the position of an element in a BtraceList | |
512 | or -1 if the element is not in the list. */ | |
513 | ||
514 | static LONGEST | |
515 | btpy_list_position (PyObject *self, PyObject *value) | |
516 | { | |
517 | const btpy_list_object * const list_obj = (btpy_list_object *) self; | |
0ed5da75 | 518 | const recpy_element_object * const obj = (const recpy_element_object *) value; |
75c0bdf4 TW |
519 | Py_ssize_t index = obj->number; |
520 | ||
521 | if (list_obj->element_type != Py_TYPE (value)) | |
522 | return -1; | |
523 | ||
00431a78 | 524 | if (list_obj->thread != obj->thread) |
75c0bdf4 TW |
525 | return -1; |
526 | ||
527 | if (index < list_obj->first || index > list_obj->last) | |
528 | return -1; | |
529 | ||
530 | index -= list_obj->first; | |
531 | ||
532 | if (index % list_obj->step != 0) | |
533 | return -1; | |
534 | ||
535 | return index / list_obj->step; | |
536 | } | |
537 | ||
538 | /* Implementation of "in" operator for BtraceLists. */ | |
539 | ||
540 | static int | |
541 | btpy_list_contains (PyObject *self, PyObject *value) | |
542 | { | |
543 | if (btpy_list_position (self, value) < 0) | |
544 | return 0; | |
545 | ||
546 | return 1; | |
547 | } | |
548 | ||
549 | /* Implementation of BtraceLists.index (self, value) -> int. */ | |
550 | ||
551 | static PyObject * | |
552 | btpy_list_index (PyObject *self, PyObject *value) | |
553 | { | |
554 | const LONGEST index = btpy_list_position (self, value); | |
555 | ||
556 | if (index < 0) | |
557 | return PyErr_Format (PyExc_ValueError, _("Not in list.")); | |
558 | ||
559 | return gdb_py_long_from_longest (index); | |
560 | } | |
561 | ||
562 | /* Implementation of BtraceList.count (self, value) -> int. */ | |
563 | ||
564 | static PyObject * | |
565 | btpy_list_count (PyObject *self, PyObject *value) | |
566 | { | |
567 | /* We know that if an element is in the list, it is so exactly one time, | |
568 | enabling us to reuse the "is element of" check. */ | |
569 | return PyInt_FromLong (btpy_list_contains (self, value)); | |
570 | } | |
571 | ||
572 | /* Python rich compare function to allow for equality and inequality checks | |
573 | in Python. */ | |
574 | ||
575 | static PyObject * | |
576 | btpy_list_richcompare (PyObject *self, PyObject *other, int op) | |
577 | { | |
578 | const btpy_list_object * const obj1 = (btpy_list_object *) self; | |
579 | const btpy_list_object * const obj2 = (btpy_list_object *) other; | |
580 | ||
581 | if (Py_TYPE (self) != Py_TYPE (other)) | |
582 | { | |
583 | Py_INCREF (Py_NotImplemented); | |
584 | return Py_NotImplemented; | |
585 | } | |
586 | ||
587 | switch (op) | |
588 | { | |
589 | case Py_EQ: | |
00431a78 | 590 | if (obj1->thread == obj2->thread |
75c0bdf4 TW |
591 | && obj1->element_type == obj2->element_type |
592 | && obj1->first == obj2->first | |
593 | && obj1->last == obj2->last | |
594 | && obj1->step == obj2->step) | |
595 | Py_RETURN_TRUE; | |
596 | else | |
597 | Py_RETURN_FALSE; | |
598 | ||
599 | case Py_NE: | |
00431a78 | 600 | if (obj1->thread != obj2->thread |
75c0bdf4 TW |
601 | || obj1->element_type != obj2->element_type |
602 | || obj1->first != obj2->first | |
603 | || obj1->last != obj2->last | |
604 | || obj1->step != obj2->step) | |
605 | Py_RETURN_TRUE; | |
606 | else | |
607 | Py_RETURN_FALSE; | |
608 | ||
609 | default: | |
610 | break; | |
611 | } | |
612 | ||
613 | Py_INCREF (Py_NotImplemented); | |
614 | return Py_NotImplemented; | |
615 | } | |
616 | ||
617 | /* Implementation of | |
618 | BtraceRecord.method [str]. */ | |
619 | ||
620 | PyObject * | |
621 | recpy_bt_method (PyObject *self, void *closure) | |
622 | { | |
623 | return PyString_FromString ("btrace"); | |
624 | } | |
625 | ||
626 | /* Implementation of | |
627 | BtraceRecord.format [str]. */ | |
628 | ||
629 | PyObject * | |
630 | recpy_bt_format (PyObject *self, void *closure) | |
631 | { | |
ae20e79a | 632 | const recpy_record_object * const record = (recpy_record_object *) self; |
00431a78 | 633 | const struct thread_info * const tinfo = record->thread; |
75c0bdf4 TW |
634 | const struct btrace_config * config; |
635 | ||
636 | if (tinfo == NULL) | |
637 | Py_RETURN_NONE; | |
638 | ||
639 | config = btrace_conf (&tinfo->btrace); | |
640 | ||
641 | if (config == NULL) | |
642 | Py_RETURN_NONE; | |
643 | ||
644 | return PyString_FromString (btrace_format_short_string (config->format)); | |
645 | } | |
646 | ||
647 | /* Implementation of | |
648 | BtraceRecord.replay_position [BtraceInstruction]. */ | |
649 | ||
650 | PyObject * | |
651 | recpy_bt_replay_position (PyObject *self, void *closure) | |
652 | { | |
ae20e79a | 653 | const recpy_record_object * const record = (recpy_record_object *) self; |
00431a78 | 654 | thread_info * tinfo = record->thread; |
75c0bdf4 TW |
655 | |
656 | if (tinfo == NULL) | |
657 | Py_RETURN_NONE; | |
658 | ||
659 | if (tinfo->btrace.replay == NULL) | |
660 | Py_RETURN_NONE; | |
661 | ||
913aeadd TW |
662 | return btpy_insn_or_gap_new (tinfo, |
663 | btrace_insn_number (tinfo->btrace.replay)); | |
75c0bdf4 TW |
664 | } |
665 | ||
666 | /* Implementation of | |
667 | BtraceRecord.begin [BtraceInstruction]. */ | |
668 | ||
669 | PyObject * | |
670 | recpy_bt_begin (PyObject *self, void *closure) | |
671 | { | |
ae20e79a | 672 | const recpy_record_object * const record = (recpy_record_object *) self; |
00431a78 | 673 | thread_info *const tinfo = record->thread; |
75c0bdf4 TW |
674 | struct btrace_insn_iterator iterator; |
675 | ||
676 | if (tinfo == NULL) | |
677 | Py_RETURN_NONE; | |
678 | ||
4a4495d6 | 679 | btrace_fetch (tinfo, record_btrace_get_cpu ()); |
75c0bdf4 TW |
680 | |
681 | if (btrace_is_empty (tinfo)) | |
682 | Py_RETURN_NONE; | |
683 | ||
684 | btrace_insn_begin (&iterator, &tinfo->btrace); | |
913aeadd | 685 | return btpy_insn_or_gap_new (tinfo, btrace_insn_number (&iterator)); |
75c0bdf4 TW |
686 | } |
687 | ||
688 | /* Implementation of | |
689 | BtraceRecord.end [BtraceInstruction]. */ | |
690 | ||
691 | PyObject * | |
692 | recpy_bt_end (PyObject *self, void *closure) | |
693 | { | |
ae20e79a | 694 | const recpy_record_object * const record = (recpy_record_object *) self; |
00431a78 | 695 | thread_info *const tinfo = record->thread; |
75c0bdf4 TW |
696 | struct btrace_insn_iterator iterator; |
697 | ||
698 | if (tinfo == NULL) | |
699 | Py_RETURN_NONE; | |
700 | ||
4a4495d6 | 701 | btrace_fetch (tinfo, record_btrace_get_cpu ()); |
75c0bdf4 TW |
702 | |
703 | if (btrace_is_empty (tinfo)) | |
704 | Py_RETURN_NONE; | |
705 | ||
706 | btrace_insn_end (&iterator, &tinfo->btrace); | |
913aeadd | 707 | return btpy_insn_or_gap_new (tinfo, btrace_insn_number (&iterator)); |
75c0bdf4 TW |
708 | } |
709 | ||
710 | /* Implementation of | |
711 | BtraceRecord.instruction_history [list]. */ | |
712 | ||
713 | PyObject * | |
714 | recpy_bt_instruction_history (PyObject *self, void *closure) | |
715 | { | |
ae20e79a | 716 | const recpy_record_object * const record = (recpy_record_object *) self; |
00431a78 | 717 | thread_info *const tinfo = record->thread; |
75c0bdf4 TW |
718 | struct btrace_insn_iterator iterator; |
719 | unsigned long first = 0; | |
720 | unsigned long last = 0; | |
721 | ||
722 | if (tinfo == NULL) | |
723 | Py_RETURN_NONE; | |
724 | ||
4a4495d6 | 725 | btrace_fetch (tinfo, record_btrace_get_cpu ()); |
75c0bdf4 TW |
726 | |
727 | if (btrace_is_empty (tinfo)) | |
728 | Py_RETURN_NONE; | |
729 | ||
730 | btrace_insn_begin (&iterator, &tinfo->btrace); | |
731 | first = btrace_insn_number (&iterator); | |
732 | ||
733 | btrace_insn_end (&iterator, &tinfo->btrace); | |
734 | last = btrace_insn_number (&iterator); | |
735 | ||
00431a78 | 736 | return btpy_list_new (tinfo, first, last, 1, &recpy_insn_type); |
75c0bdf4 TW |
737 | } |
738 | ||
739 | /* Implementation of | |
740 | BtraceRecord.function_call_history [list]. */ | |
741 | ||
742 | PyObject * | |
743 | recpy_bt_function_call_history (PyObject *self, void *closure) | |
744 | { | |
ae20e79a | 745 | const recpy_record_object * const record = (recpy_record_object *) self; |
00431a78 | 746 | thread_info *const tinfo = record->thread; |
8d0050ea TW |
747 | struct btrace_call_iterator iterator; |
748 | unsigned long first = 0; | |
749 | unsigned long last = 0; | |
75c0bdf4 | 750 | |
8d0050ea TW |
751 | if (tinfo == NULL) |
752 | Py_RETURN_NONE; | |
75c0bdf4 | 753 | |
4a4495d6 | 754 | btrace_fetch (tinfo, record_btrace_get_cpu ()); |
75c0bdf4 | 755 | |
8d0050ea TW |
756 | if (btrace_is_empty (tinfo)) |
757 | Py_RETURN_NONE; | |
75c0bdf4 | 758 | |
8d0050ea TW |
759 | btrace_call_begin (&iterator, &tinfo->btrace); |
760 | first = btrace_call_number (&iterator); | |
75c0bdf4 | 761 | |
8d0050ea TW |
762 | btrace_call_end (&iterator, &tinfo->btrace); |
763 | last = btrace_call_number (&iterator); | |
75c0bdf4 | 764 | |
00431a78 | 765 | return btpy_list_new (tinfo, first, last, 1, &recpy_func_type); |
75c0bdf4 TW |
766 | } |
767 | ||
768 | /* Implementation of BtraceRecord.goto (self, BtraceInstruction) -> None. */ | |
769 | ||
770 | PyObject * | |
771 | recpy_bt_goto (PyObject *self, PyObject *args) | |
772 | { | |
ae20e79a | 773 | const recpy_record_object * const record = (recpy_record_object *) self; |
00431a78 | 774 | thread_info *const tinfo = record->thread; |
0ed5da75 | 775 | const recpy_element_object *obj; |
96b1ad86 | 776 | PyObject *parse_obj; |
75c0bdf4 TW |
777 | |
778 | if (tinfo == NULL || btrace_is_empty (tinfo)) | |
779 | return PyErr_Format (gdbpy_gdb_error, _("Empty branch trace.")); | |
780 | ||
96b1ad86 | 781 | if (!PyArg_ParseTuple (args, "O", &parse_obj)) |
75c0bdf4 TW |
782 | return NULL; |
783 | ||
96b1ad86 | 784 | if (Py_TYPE (parse_obj) != &recpy_insn_type) |
75c0bdf4 | 785 | return PyErr_Format (PyExc_TypeError, _("Argument must be instruction.")); |
96b1ad86 | 786 | obj = (const recpy_element_object *) parse_obj; |
75c0bdf4 | 787 | |
a70b8144 | 788 | try |
75c0bdf4 TW |
789 | { |
790 | struct btrace_insn_iterator iter; | |
791 | ||
792 | btrace_insn_end (&iter, &tinfo->btrace); | |
793 | ||
794 | if (btrace_insn_number (&iter) == obj->number) | |
795 | target_goto_record_end (); | |
796 | else | |
797 | target_goto_record (obj->number); | |
798 | } | |
230d2906 | 799 | catch (const gdb_exception &except) |
75c0bdf4 TW |
800 | { |
801 | GDB_PY_HANDLE_EXCEPTION (except); | |
802 | } | |
75c0bdf4 TW |
803 | |
804 | Py_RETURN_NONE; | |
805 | } | |
806 | ||
75c0bdf4 TW |
807 | /* BtraceList methods. */ |
808 | ||
809 | struct PyMethodDef btpy_list_methods[] = | |
810 | { | |
811 | { "count", btpy_list_count, METH_O, "count number of occurences"}, | |
812 | { "index", btpy_list_index, METH_O, "index of entry"}, | |
813 | {NULL} | |
814 | }; | |
815 | ||
816 | /* BtraceList sequence methods. */ | |
817 | ||
818 | static PySequenceMethods btpy_list_sequence_methods = | |
819 | { | |
820 | NULL | |
821 | }; | |
822 | ||
823 | /* BtraceList mapping methods. Necessary for slicing. */ | |
824 | ||
825 | static PyMappingMethods btpy_list_mapping_methods = | |
826 | { | |
827 | NULL | |
828 | }; | |
829 | ||
830 | /* Sets up the btrace record API. */ | |
831 | ||
832 | int | |
833 | gdbpy_initialize_btrace (void) | |
834 | { | |
75c0bdf4 TW |
835 | btpy_list_type.tp_new = PyType_GenericNew; |
836 | btpy_list_type.tp_flags = Py_TPFLAGS_DEFAULT; | |
837 | btpy_list_type.tp_basicsize = sizeof (btpy_list_object); | |
838 | btpy_list_type.tp_name = "gdb.BtraceObjectList"; | |
839 | btpy_list_type.tp_doc = "GDB btrace list object"; | |
840 | btpy_list_type.tp_methods = btpy_list_methods; | |
841 | btpy_list_type.tp_as_sequence = &btpy_list_sequence_methods; | |
842 | btpy_list_type.tp_as_mapping = &btpy_list_mapping_methods; | |
843 | btpy_list_type.tp_richcompare = btpy_list_richcompare; | |
844 | ||
845 | btpy_list_sequence_methods.sq_item = btpy_list_item; | |
846 | btpy_list_sequence_methods.sq_length = btpy_list_length; | |
847 | btpy_list_sequence_methods.sq_contains = btpy_list_contains; | |
848 | ||
849 | btpy_list_mapping_methods.mp_subscript = btpy_list_slice; | |
850 | ||
14f819c8 | 851 | return PyType_Ready (&btpy_list_type); |
75c0bdf4 | 852 | } |