Commit | Line | Data |
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69d05d38 HZ |
1 | /* Process record and replay target for GDB, the GNU debugger. |
2 | ||
4c38e0a4 | 3 | Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc. |
69d05d38 HZ |
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 "gdbcmd.h" | |
22 | #include "regcache.h" | |
23 | #include "gdbthread.h" | |
24 | #include "event-top.h" | |
25 | #include "exceptions.h" | |
0156b218 MS |
26 | #include "completer.h" |
27 | #include "arch-utils.h" | |
27699eea MS |
28 | #include "gdbcore.h" |
29 | #include "exec.h" | |
69d05d38 | 30 | #include "record.h" |
0156b218 MS |
31 | #include "elf-bfd.h" |
32 | #include "gcore.h" | |
69d05d38 HZ |
33 | |
34 | #include <signal.h> | |
35 | ||
6df67667 MS |
36 | /* This module implements "target record", also known as "process |
37 | record and replay". This target sits on top of a "normal" target | |
38 | (a target that "has execution"), and provides a record and replay | |
39 | functionality, including reverse debugging. | |
40 | ||
41 | Target record has two modes: recording, and replaying. | |
42 | ||
43 | In record mode, we intercept the to_resume and to_wait methods. | |
44 | Whenever gdb resumes the target, we run the target in single step | |
45 | mode, and we build up an execution log in which, for each executed | |
46 | instruction, we record all changes in memory and register state. | |
47 | This is invisible to the user, to whom it just looks like an | |
48 | ordinary debugging session (except for performance degredation). | |
49 | ||
50 | In replay mode, instead of actually letting the inferior run as a | |
51 | process, we simulate its execution by playing back the recorded | |
52 | execution log. For each instruction in the log, we simulate the | |
53 | instruction's side effects by duplicating the changes that it would | |
54 | have made on memory and registers. */ | |
55 | ||
69d05d38 HZ |
56 | #define DEFAULT_RECORD_INSN_MAX_NUM 200000 |
57 | ||
58 | #define RECORD_IS_REPLAY \ | |
59 | (record_list->next || execution_direction == EXEC_REVERSE) | |
60 | ||
0156b218 MS |
61 | #define RECORD_FILE_MAGIC netorder32(0x20091016) |
62 | ||
fda458ee | 63 | /* These are the core structs of the process record functionality. |
69d05d38 | 64 | |
fda458ee | 65 | A record_entry is a record of the value change of a register |
69d05d38 | 66 | ("record_reg") or a part of memory ("record_mem"). And each |
fda458ee MS |
67 | instruction must have a struct record_entry ("record_end") that |
68 | indicates that this is the last struct record_entry of this | |
69 | instruction. | |
69d05d38 | 70 | |
fda458ee MS |
71 | Each struct record_entry is linked to "record_list" by "prev" and |
72 | "next" pointers. */ | |
69d05d38 | 73 | |
69d05d38 HZ |
74 | struct record_mem_entry |
75 | { | |
76 | CORE_ADDR addr; | |
77 | int len; | |
afd0cd3f MS |
78 | /* Set this flag if target memory for this entry |
79 | can no longer be accessed. */ | |
80 | int mem_entry_not_accessible; | |
44389f9b MS |
81 | union |
82 | { | |
83 | gdb_byte *ptr; | |
84 | gdb_byte buf[sizeof (gdb_byte *)]; | |
85 | } u; | |
86 | }; | |
87 | ||
88 | struct record_reg_entry | |
89 | { | |
90 | unsigned short num; | |
91 | unsigned short len; | |
92 | union | |
93 | { | |
94 | gdb_byte *ptr; | |
95 | gdb_byte buf[2 * sizeof (gdb_byte *)]; | |
96 | } u; | |
69d05d38 HZ |
97 | }; |
98 | ||
8b739a96 HZ |
99 | struct record_end_entry |
100 | { | |
101 | enum target_signal sigval; | |
b54295a7 | 102 | ULONGEST insn_num; |
8b739a96 HZ |
103 | }; |
104 | ||
69d05d38 HZ |
105 | enum record_type |
106 | { | |
107 | record_end = 0, | |
108 | record_reg, | |
109 | record_mem | |
110 | }; | |
111 | ||
6df67667 MS |
112 | /* This is the data structure that makes up the execution log. |
113 | ||
114 | The execution log consists of a single linked list of entries | |
115 | of type "struct record_entry". It is doubly linked so that it | |
116 | can be traversed in either direction. | |
117 | ||
118 | The start of the list is anchored by a struct called | |
119 | "record_first". The pointer "record_list" either points to the | |
120 | last entry that was added to the list (in record mode), or to the | |
121 | next entry in the list that will be executed (in replay mode). | |
122 | ||
123 | Each list element (struct record_entry), in addition to next and | |
124 | prev pointers, consists of a union of three entry types: mem, reg, | |
125 | and end. A field called "type" determines which entry type is | |
126 | represented by a given list element. | |
127 | ||
128 | Each instruction that is added to the execution log is represented | |
129 | by a variable number of list elements ('entries'). The instruction | |
130 | will have one "reg" entry for each register that is changed by | |
131 | executing the instruction (including the PC in every case). It | |
132 | will also have one "mem" entry for each memory change. Finally, | |
133 | each instruction will have an "end" entry that separates it from | |
134 | the changes associated with the next instruction. */ | |
135 | ||
69d05d38 HZ |
136 | struct record_entry |
137 | { | |
138 | struct record_entry *prev; | |
139 | struct record_entry *next; | |
140 | enum record_type type; | |
141 | union | |
142 | { | |
143 | /* reg */ | |
144 | struct record_reg_entry reg; | |
145 | /* mem */ | |
146 | struct record_mem_entry mem; | |
8b739a96 HZ |
147 | /* end */ |
148 | struct record_end_entry end; | |
69d05d38 HZ |
149 | } u; |
150 | }; | |
151 | ||
152 | /* This is the debug switch for process record. */ | |
153 | int record_debug = 0; | |
154 | ||
bb08c432 HZ |
155 | /* If true, query if PREC cannot record memory |
156 | change of next instruction. */ | |
157 | int record_memory_query = 0; | |
158 | ||
27699eea MS |
159 | struct record_core_buf_entry |
160 | { | |
161 | struct record_core_buf_entry *prev; | |
162 | struct target_section *p; | |
163 | bfd_byte *buf; | |
164 | }; | |
165 | ||
166 | /* Record buf with core target. */ | |
167 | static gdb_byte *record_core_regbuf = NULL; | |
168 | static struct target_section *record_core_start; | |
169 | static struct target_section *record_core_end; | |
170 | static struct record_core_buf_entry *record_core_buf_list = NULL; | |
171 | ||
6df67667 MS |
172 | /* The following variables are used for managing the linked list that |
173 | represents the execution log. | |
174 | ||
175 | record_first is the anchor that holds down the beginning of the list. | |
176 | ||
177 | record_list serves two functions: | |
178 | 1) In record mode, it anchors the end of the list. | |
179 | 2) In replay mode, it traverses the list and points to | |
180 | the next instruction that must be emulated. | |
181 | ||
182 | record_arch_list_head and record_arch_list_tail are used to manage | |
183 | a separate list, which is used to build up the change elements of | |
184 | the currently executing instruction during record mode. When this | |
185 | instruction has been completely annotated in the "arch list", it | |
186 | will be appended to the main execution log. */ | |
187 | ||
69d05d38 HZ |
188 | static struct record_entry record_first; |
189 | static struct record_entry *record_list = &record_first; | |
190 | static struct record_entry *record_arch_list_head = NULL; | |
191 | static struct record_entry *record_arch_list_tail = NULL; | |
192 | ||
193 | /* 1 ask user. 0 auto delete the last struct record_entry. */ | |
194 | static int record_stop_at_limit = 1; | |
b54295a7 | 195 | /* Maximum allowed number of insns in execution log. */ |
191e1813 | 196 | static unsigned int record_insn_max_num = DEFAULT_RECORD_INSN_MAX_NUM; |
b54295a7 | 197 | /* Actual count of insns presently in execution log. */ |
69d05d38 | 198 | static int record_insn_num = 0; |
b54295a7 MS |
199 | /* Count of insns logged so far (may be larger |
200 | than count of insns presently in execution log). */ | |
201 | static ULONGEST record_insn_count; | |
69d05d38 HZ |
202 | |
203 | /* The target_ops of process record. */ | |
204 | static struct target_ops record_ops; | |
27699eea | 205 | static struct target_ops record_core_ops; |
69d05d38 HZ |
206 | |
207 | /* The beneath function pointers. */ | |
208 | static struct target_ops *record_beneath_to_resume_ops; | |
209 | static void (*record_beneath_to_resume) (struct target_ops *, ptid_t, int, | |
210 | enum target_signal); | |
211 | static struct target_ops *record_beneath_to_wait_ops; | |
212 | static ptid_t (*record_beneath_to_wait) (struct target_ops *, ptid_t, | |
47608cb1 PA |
213 | struct target_waitstatus *, |
214 | int); | |
69d05d38 HZ |
215 | static struct target_ops *record_beneath_to_store_registers_ops; |
216 | static void (*record_beneath_to_store_registers) (struct target_ops *, | |
217 | struct regcache *, | |
218 | int regno); | |
219 | static struct target_ops *record_beneath_to_xfer_partial_ops; | |
220 | static LONGEST (*record_beneath_to_xfer_partial) (struct target_ops *ops, | |
221 | enum target_object object, | |
222 | const char *annex, | |
223 | gdb_byte *readbuf, | |
224 | const gdb_byte *writebuf, | |
225 | ULONGEST offset, | |
226 | LONGEST len); | |
a6d9a66e UW |
227 | static int (*record_beneath_to_insert_breakpoint) (struct gdbarch *, |
228 | struct bp_target_info *); | |
229 | static int (*record_beneath_to_remove_breakpoint) (struct gdbarch *, | |
230 | struct bp_target_info *); | |
9093389c PA |
231 | static int (*record_beneath_to_stopped_by_watchpoint) (void); |
232 | static int (*record_beneath_to_stopped_data_address) (struct target_ops *, | |
233 | CORE_ADDR *); | |
69d05d38 | 234 | |
61f75dd8 MS |
235 | /* Alloc and free functions for record_reg, record_mem, and record_end |
236 | entries. */ | |
237 | ||
238 | /* Alloc a record_reg record entry. */ | |
239 | ||
240 | static inline struct record_entry * | |
241 | record_reg_alloc (struct regcache *regcache, int regnum) | |
242 | { | |
243 | struct record_entry *rec; | |
244 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
245 | ||
246 | rec = (struct record_entry *) xcalloc (1, sizeof (struct record_entry)); | |
247 | rec->type = record_reg; | |
248 | rec->u.reg.num = regnum; | |
44389f9b MS |
249 | rec->u.reg.len = register_size (gdbarch, regnum); |
250 | if (rec->u.reg.len > sizeof (rec->u.reg.u.buf)) | |
251 | rec->u.reg.u.ptr = (gdb_byte *) xmalloc (rec->u.reg.len); | |
61f75dd8 MS |
252 | |
253 | return rec; | |
254 | } | |
255 | ||
256 | /* Free a record_reg record entry. */ | |
257 | ||
258 | static inline void | |
259 | record_reg_release (struct record_entry *rec) | |
260 | { | |
261 | gdb_assert (rec->type == record_reg); | |
44389f9b MS |
262 | if (rec->u.reg.len > sizeof (rec->u.reg.u.buf)) |
263 | xfree (rec->u.reg.u.ptr); | |
61f75dd8 MS |
264 | xfree (rec); |
265 | } | |
266 | ||
267 | /* Alloc a record_mem record entry. */ | |
268 | ||
269 | static inline struct record_entry * | |
270 | record_mem_alloc (CORE_ADDR addr, int len) | |
271 | { | |
272 | struct record_entry *rec; | |
273 | ||
274 | rec = (struct record_entry *) xcalloc (1, sizeof (struct record_entry)); | |
275 | rec->type = record_mem; | |
276 | rec->u.mem.addr = addr; | |
277 | rec->u.mem.len = len; | |
44389f9b MS |
278 | if (rec->u.mem.len > sizeof (rec->u.mem.u.buf)) |
279 | rec->u.mem.u.ptr = (gdb_byte *) xmalloc (len); | |
61f75dd8 MS |
280 | |
281 | return rec; | |
282 | } | |
283 | ||
284 | /* Free a record_mem record entry. */ | |
285 | ||
286 | static inline void | |
287 | record_mem_release (struct record_entry *rec) | |
288 | { | |
289 | gdb_assert (rec->type == record_mem); | |
44389f9b MS |
290 | if (rec->u.mem.len > sizeof (rec->u.mem.u.buf)) |
291 | xfree (rec->u.mem.u.ptr); | |
61f75dd8 MS |
292 | xfree (rec); |
293 | } | |
294 | ||
295 | /* Alloc a record_end record entry. */ | |
296 | ||
297 | static inline struct record_entry * | |
298 | record_end_alloc (void) | |
299 | { | |
300 | struct record_entry *rec; | |
301 | ||
302 | rec = (struct record_entry *) xcalloc (1, sizeof (struct record_entry)); | |
303 | rec->type = record_end; | |
304 | ||
305 | return rec; | |
306 | } | |
307 | ||
308 | /* Free a record_end record entry. */ | |
309 | ||
310 | static inline void | |
311 | record_end_release (struct record_entry *rec) | |
312 | { | |
313 | xfree (rec); | |
314 | } | |
315 | ||
316 | /* Free one record entry, any type. | |
317 | Return entry->type, in case caller wants to know. */ | |
318 | ||
319 | static inline enum record_type | |
320 | record_entry_release (struct record_entry *rec) | |
321 | { | |
322 | enum record_type type = rec->type; | |
323 | ||
324 | switch (type) { | |
325 | case record_reg: | |
326 | record_reg_release (rec); | |
327 | break; | |
328 | case record_mem: | |
329 | record_mem_release (rec); | |
330 | break; | |
331 | case record_end: | |
332 | record_end_release (rec); | |
333 | break; | |
334 | } | |
335 | return type; | |
336 | } | |
337 | ||
338 | /* Free all record entries in list pointed to by REC. */ | |
339 | ||
69d05d38 HZ |
340 | static void |
341 | record_list_release (struct record_entry *rec) | |
342 | { | |
69d05d38 HZ |
343 | if (!rec) |
344 | return; | |
345 | ||
346 | while (rec->next) | |
61f75dd8 | 347 | rec = rec->next; |
69d05d38 HZ |
348 | |
349 | while (rec->prev) | |
350 | { | |
69d05d38 | 351 | rec = rec->prev; |
61f75dd8 | 352 | record_entry_release (rec->next); |
69d05d38 HZ |
353 | } |
354 | ||
61f75dd8 MS |
355 | if (rec == &record_first) |
356 | { | |
357 | record_insn_num = 0; | |
358 | record_first.next = NULL; | |
359 | } | |
360 | else | |
361 | record_entry_release (rec); | |
69d05d38 HZ |
362 | } |
363 | ||
61f75dd8 MS |
364 | /* Free all record entries forward of the given list position. */ |
365 | ||
69d05d38 | 366 | static void |
61f75dd8 | 367 | record_list_release_following (struct record_entry *rec) |
69d05d38 | 368 | { |
69d05d38 | 369 | struct record_entry *tmp = rec->next; |
61f75dd8 | 370 | |
69d05d38 HZ |
371 | rec->next = NULL; |
372 | while (tmp) | |
373 | { | |
374 | rec = tmp->next; | |
61f75dd8 | 375 | if (record_entry_release (tmp) == record_end) |
b54295a7 MS |
376 | { |
377 | record_insn_num--; | |
378 | record_insn_count--; | |
379 | } | |
69d05d38 HZ |
380 | tmp = rec; |
381 | } | |
382 | } | |
383 | ||
265aad34 MS |
384 | /* Delete the first instruction from the beginning of the log, to make |
385 | room for adding a new instruction at the end of the log. | |
386 | ||
387 | Note -- this function does not modify record_insn_num. */ | |
388 | ||
69d05d38 HZ |
389 | static void |
390 | record_list_release_first (void) | |
391 | { | |
61f75dd8 | 392 | struct record_entry *tmp; |
69d05d38 HZ |
393 | |
394 | if (!record_first.next) | |
395 | return; | |
396 | ||
61f75dd8 | 397 | /* Loop until a record_end. */ |
69d05d38 HZ |
398 | while (1) |
399 | { | |
61f75dd8 | 400 | /* Cut record_first.next out of the linked list. */ |
69d05d38 HZ |
401 | tmp = record_first.next; |
402 | record_first.next = tmp->next; | |
61f75dd8 MS |
403 | tmp->next->prev = &record_first; |
404 | ||
405 | /* tmp is now isolated, and can be deleted. */ | |
406 | if (record_entry_release (tmp) == record_end) | |
b54295a7 | 407 | break; /* End loop at first record_end. */ |
69d05d38 HZ |
408 | |
409 | if (!record_first.next) | |
410 | { | |
411 | gdb_assert (record_insn_num == 1); | |
61f75dd8 | 412 | break; /* End loop when list is empty. */ |
69d05d38 | 413 | } |
69d05d38 | 414 | } |
69d05d38 HZ |
415 | } |
416 | ||
417 | /* Add a struct record_entry to record_arch_list. */ | |
418 | ||
419 | static void | |
420 | record_arch_list_add (struct record_entry *rec) | |
421 | { | |
422 | if (record_debug > 1) | |
423 | fprintf_unfiltered (gdb_stdlog, | |
424 | "Process record: record_arch_list_add %s.\n", | |
425 | host_address_to_string (rec)); | |
426 | ||
427 | if (record_arch_list_tail) | |
428 | { | |
429 | record_arch_list_tail->next = rec; | |
430 | rec->prev = record_arch_list_tail; | |
431 | record_arch_list_tail = rec; | |
432 | } | |
433 | else | |
434 | { | |
435 | record_arch_list_head = rec; | |
436 | record_arch_list_tail = rec; | |
437 | } | |
438 | } | |
439 | ||
44389f9b MS |
440 | /* Return the value storage location of a record entry. */ |
441 | static inline gdb_byte * | |
442 | record_get_loc (struct record_entry *rec) | |
443 | { | |
444 | switch (rec->type) { | |
445 | case record_mem: | |
446 | if (rec->u.mem.len > sizeof (rec->u.mem.u.buf)) | |
447 | return rec->u.mem.u.ptr; | |
448 | else | |
449 | return rec->u.mem.u.buf; | |
450 | case record_reg: | |
451 | if (rec->u.reg.len > sizeof (rec->u.reg.u.buf)) | |
452 | return rec->u.reg.u.ptr; | |
453 | else | |
454 | return rec->u.reg.u.buf; | |
455 | case record_end: | |
456 | default: | |
f3574227 | 457 | gdb_assert_not_reached ("unexpected record_entry type"); |
44389f9b MS |
458 | return NULL; |
459 | } | |
460 | } | |
461 | ||
462 | /* Record the value of a register NUM to record_arch_list. */ | |
69d05d38 HZ |
463 | |
464 | int | |
61f75dd8 | 465 | record_arch_list_add_reg (struct regcache *regcache, int regnum) |
69d05d38 HZ |
466 | { |
467 | struct record_entry *rec; | |
468 | ||
469 | if (record_debug > 1) | |
470 | fprintf_unfiltered (gdb_stdlog, | |
471 | "Process record: add register num = %d to " | |
472 | "record list.\n", | |
61f75dd8 | 473 | regnum); |
69d05d38 | 474 | |
61f75dd8 | 475 | rec = record_reg_alloc (regcache, regnum); |
69d05d38 | 476 | |
44389f9b | 477 | regcache_raw_read (regcache, regnum, record_get_loc (rec)); |
69d05d38 HZ |
478 | |
479 | record_arch_list_add (rec); | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
484 | /* Record the value of a region of memory whose address is ADDR and | |
485 | length is LEN to record_arch_list. */ | |
486 | ||
487 | int | |
488 | record_arch_list_add_mem (CORE_ADDR addr, int len) | |
489 | { | |
490 | struct record_entry *rec; | |
491 | ||
492 | if (record_debug > 1) | |
493 | fprintf_unfiltered (gdb_stdlog, | |
5af949e3 | 494 | "Process record: add mem addr = %s len = %d to " |
69d05d38 | 495 | "record list.\n", |
5af949e3 | 496 | paddress (target_gdbarch, addr), len); |
69d05d38 | 497 | |
61f75dd8 | 498 | if (!addr) /* FIXME: Why? Some arch must permit it... */ |
69d05d38 HZ |
499 | return 0; |
500 | ||
61f75dd8 | 501 | rec = record_mem_alloc (addr, len); |
69d05d38 | 502 | |
44389f9b | 503 | if (target_read_memory (addr, record_get_loc (rec), len)) |
69d05d38 HZ |
504 | { |
505 | if (record_debug) | |
506 | fprintf_unfiltered (gdb_stdlog, | |
507 | "Process record: error reading memory at " | |
5af949e3 UW |
508 | "addr = %s len = %d.\n", |
509 | paddress (target_gdbarch, addr), len); | |
61f75dd8 | 510 | record_mem_release (rec); |
69d05d38 HZ |
511 | return -1; |
512 | } | |
513 | ||
514 | record_arch_list_add (rec); | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
519 | /* Add a record_end type struct record_entry to record_arch_list. */ | |
520 | ||
521 | int | |
522 | record_arch_list_add_end (void) | |
523 | { | |
524 | struct record_entry *rec; | |
525 | ||
526 | if (record_debug > 1) | |
527 | fprintf_unfiltered (gdb_stdlog, | |
528 | "Process record: add end to arch list.\n"); | |
529 | ||
61f75dd8 | 530 | rec = record_end_alloc (); |
8b739a96 | 531 | rec->u.end.sigval = TARGET_SIGNAL_0; |
b54295a7 | 532 | rec->u.end.insn_num = ++record_insn_count; |
69d05d38 HZ |
533 | |
534 | record_arch_list_add (rec); | |
535 | ||
536 | return 0; | |
537 | } | |
538 | ||
539 | static void | |
540 | record_check_insn_num (int set_terminal) | |
541 | { | |
542 | if (record_insn_max_num) | |
543 | { | |
544 | gdb_assert (record_insn_num <= record_insn_max_num); | |
545 | if (record_insn_num == record_insn_max_num) | |
546 | { | |
547 | /* Ask user what to do. */ | |
548 | if (record_stop_at_limit) | |
549 | { | |
550 | int q; | |
123f5f96 | 551 | |
69d05d38 HZ |
552 | if (set_terminal) |
553 | target_terminal_ours (); | |
554 | q = yquery (_("Do you want to auto delete previous execution " | |
555 | "log entries when record/replay buffer becomes " | |
556 | "full (record stop-at-limit)?")); | |
557 | if (set_terminal) | |
558 | target_terminal_inferior (); | |
559 | if (q) | |
560 | record_stop_at_limit = 0; | |
561 | else | |
0156b218 | 562 | error (_("Process record: stopped by user.")); |
69d05d38 HZ |
563 | } |
564 | } | |
565 | } | |
566 | } | |
567 | ||
0156b218 MS |
568 | static void |
569 | record_arch_list_cleanups (void *ignore) | |
570 | { | |
571 | record_list_release (record_arch_list_tail); | |
572 | } | |
573 | ||
69d05d38 HZ |
574 | /* Before inferior step (when GDB record the running message, inferior |
575 | only can step), GDB will call this function to record the values to | |
576 | record_list. This function will call gdbarch_process_record to | |
577 | record the running message of inferior and set them to | |
578 | record_arch_list, and add it to record_list. */ | |
579 | ||
69d05d38 | 580 | static int |
e6a386cd | 581 | record_message (struct regcache *regcache, enum target_signal signal) |
69d05d38 HZ |
582 | { |
583 | int ret; | |
e6a386cd | 584 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
0156b218 | 585 | struct cleanup *old_cleanups = make_cleanup (record_arch_list_cleanups, 0); |
69d05d38 HZ |
586 | |
587 | record_arch_list_head = NULL; | |
588 | record_arch_list_tail = NULL; | |
589 | ||
590 | /* Check record_insn_num. */ | |
591 | record_check_insn_num (1); | |
592 | ||
8b739a96 HZ |
593 | /* If gdb sends a signal value to target_resume, |
594 | save it in the 'end' field of the previous instruction. | |
595 | ||
596 | Maybe process record should record what really happened, | |
597 | rather than what gdb pretends has happened. | |
598 | ||
599 | So if Linux delivered the signal to the child process during | |
600 | the record mode, we will record it and deliver it again in | |
601 | the replay mode. | |
602 | ||
603 | If user says "ignore this signal" during the record mode, then | |
604 | it will be ignored again during the replay mode (no matter if | |
605 | the user says something different, like "deliver this signal" | |
606 | during the replay mode). | |
607 | ||
608 | User should understand that nothing he does during the replay | |
609 | mode will change the behavior of the child. If he tries, | |
610 | then that is a user error. | |
611 | ||
612 | But we should still deliver the signal to gdb during the replay, | |
613 | if we delivered it during the recording. Therefore we should | |
614 | record the signal during record_wait, not record_resume. */ | |
615 | if (record_list != &record_first) /* FIXME better way to check */ | |
616 | { | |
617 | gdb_assert (record_list->type == record_end); | |
e6a386cd | 618 | record_list->u.end.sigval = signal; |
8b739a96 HZ |
619 | } |
620 | ||
e6a386cd | 621 | if (signal == TARGET_SIGNAL_0 |
8b739a96 HZ |
622 | || !gdbarch_process_record_signal_p (gdbarch)) |
623 | ret = gdbarch_process_record (gdbarch, | |
e6a386cd HZ |
624 | regcache, |
625 | regcache_read_pc (regcache)); | |
8b739a96 HZ |
626 | else |
627 | ret = gdbarch_process_record_signal (gdbarch, | |
e6a386cd HZ |
628 | regcache, |
629 | signal); | |
8b739a96 | 630 | |
69d05d38 HZ |
631 | if (ret > 0) |
632 | error (_("Process record: inferior program stopped.")); | |
633 | if (ret < 0) | |
634 | error (_("Process record: failed to record execution log.")); | |
635 | ||
636 | discard_cleanups (old_cleanups); | |
637 | ||
638 | record_list->next = record_arch_list_head; | |
639 | record_arch_list_head->prev = record_list; | |
640 | record_list = record_arch_list_tail; | |
641 | ||
642 | if (record_insn_num == record_insn_max_num && record_insn_max_num) | |
643 | record_list_release_first (); | |
644 | else | |
645 | record_insn_num++; | |
646 | ||
647 | return 1; | |
648 | } | |
649 | ||
e6a386cd HZ |
650 | struct record_message_args { |
651 | struct regcache *regcache; | |
652 | enum target_signal signal; | |
653 | }; | |
654 | ||
69d05d38 | 655 | static int |
e6a386cd HZ |
656 | record_message_wrapper (void *args) |
657 | { | |
658 | struct record_message_args *record_args = args; | |
659 | ||
660 | return record_message (record_args->regcache, record_args->signal); | |
661 | } | |
662 | ||
663 | static int | |
664 | record_message_wrapper_safe (struct regcache *regcache, | |
665 | enum target_signal signal) | |
69d05d38 | 666 | { |
8b739a96 HZ |
667 | struct record_message_args args; |
668 | ||
669 | args.regcache = regcache; | |
670 | args.signal = signal; | |
e6a386cd HZ |
671 | |
672 | return catch_errors (record_message_wrapper, &args, NULL, RETURN_MASK_ALL); | |
69d05d38 HZ |
673 | } |
674 | ||
675 | /* Set to 1 if record_store_registers and record_xfer_partial | |
676 | doesn't need record. */ | |
677 | ||
678 | static int record_gdb_operation_disable = 0; | |
679 | ||
680 | struct cleanup * | |
681 | record_gdb_operation_disable_set (void) | |
682 | { | |
683 | struct cleanup *old_cleanups = NULL; | |
684 | ||
685 | old_cleanups = | |
686 | make_cleanup_restore_integer (&record_gdb_operation_disable); | |
687 | record_gdb_operation_disable = 1; | |
688 | ||
689 | return old_cleanups; | |
690 | } | |
691 | ||
9093389c PA |
692 | /* Flag set to TRUE for target_stopped_by_watchpoint. */ |
693 | static int record_hw_watchpoint = 0; | |
694 | ||
90ca0479 MS |
695 | /* Execute one instruction from the record log. Each instruction in |
696 | the log will be represented by an arbitrary sequence of register | |
697 | entries and memory entries, followed by an 'end' entry. */ | |
698 | ||
699 | static inline void | |
700 | record_exec_insn (struct regcache *regcache, struct gdbarch *gdbarch, | |
701 | struct record_entry *entry) | |
702 | { | |
703 | switch (entry->type) | |
704 | { | |
705 | case record_reg: /* reg */ | |
706 | { | |
707 | gdb_byte reg[MAX_REGISTER_SIZE]; | |
708 | ||
709 | if (record_debug > 1) | |
710 | fprintf_unfiltered (gdb_stdlog, | |
711 | "Process record: record_reg %s to " | |
712 | "inferior num = %d.\n", | |
713 | host_address_to_string (entry), | |
714 | entry->u.reg.num); | |
715 | ||
716 | regcache_cooked_read (regcache, entry->u.reg.num, reg); | |
717 | regcache_cooked_write (regcache, entry->u.reg.num, | |
718 | record_get_loc (entry)); | |
719 | memcpy (record_get_loc (entry), reg, entry->u.reg.len); | |
720 | } | |
721 | break; | |
722 | ||
723 | case record_mem: /* mem */ | |
724 | { | |
725 | /* Nothing to do if the entry is flagged not_accessible. */ | |
726 | if (!entry->u.mem.mem_entry_not_accessible) | |
727 | { | |
728 | gdb_byte *mem = alloca (entry->u.mem.len); | |
729 | ||
730 | if (record_debug > 1) | |
731 | fprintf_unfiltered (gdb_stdlog, | |
732 | "Process record: record_mem %s to " | |
733 | "inferior addr = %s len = %d.\n", | |
734 | host_address_to_string (entry), | |
735 | paddress (gdbarch, entry->u.mem.addr), | |
736 | entry->u.mem.len); | |
737 | ||
738 | if (target_read_memory (entry->u.mem.addr, mem, entry->u.mem.len)) | |
739 | { | |
740 | entry->u.mem.mem_entry_not_accessible = 1; | |
741 | if (record_debug) | |
0156b218 MS |
742 | warning ("Process record: error reading memory at " |
743 | "addr = %s len = %d.", | |
90ca0479 MS |
744 | paddress (gdbarch, entry->u.mem.addr), |
745 | entry->u.mem.len); | |
746 | } | |
747 | else | |
748 | { | |
749 | if (target_write_memory (entry->u.mem.addr, | |
750 | record_get_loc (entry), | |
751 | entry->u.mem.len)) | |
752 | { | |
753 | entry->u.mem.mem_entry_not_accessible = 1; | |
754 | if (record_debug) | |
0156b218 MS |
755 | warning ("Process record: error writing memory at " |
756 | "addr = %s len = %d.", | |
90ca0479 MS |
757 | paddress (gdbarch, entry->u.mem.addr), |
758 | entry->u.mem.len); | |
759 | } | |
760 | else | |
9093389c PA |
761 | { |
762 | memcpy (record_get_loc (entry), mem, entry->u.mem.len); | |
763 | ||
764 | /* We've changed memory --- check if a hardware | |
765 | watchpoint should trap. Note that this | |
766 | presently assumes the target beneath supports | |
767 | continuable watchpoints. On non-continuable | |
768 | watchpoints target, we'll want to check this | |
769 | _before_ actually doing the memory change, and | |
770 | not doing the change at all if the watchpoint | |
771 | traps. */ | |
772 | if (hardware_watchpoint_inserted_in_range | |
773 | (get_regcache_aspace (regcache), | |
774 | entry->u.mem.addr, entry->u.mem.len)) | |
775 | record_hw_watchpoint = 1; | |
776 | } | |
90ca0479 MS |
777 | } |
778 | } | |
779 | } | |
780 | break; | |
781 | } | |
782 | } | |
783 | ||
27699eea MS |
784 | static struct target_ops *tmp_to_resume_ops; |
785 | static void (*tmp_to_resume) (struct target_ops *, ptid_t, int, | |
786 | enum target_signal); | |
787 | static struct target_ops *tmp_to_wait_ops; | |
788 | static ptid_t (*tmp_to_wait) (struct target_ops *, ptid_t, | |
789 | struct target_waitstatus *, | |
790 | int); | |
791 | static struct target_ops *tmp_to_store_registers_ops; | |
792 | static void (*tmp_to_store_registers) (struct target_ops *, | |
793 | struct regcache *, | |
794 | int regno); | |
795 | static struct target_ops *tmp_to_xfer_partial_ops; | |
796 | static LONGEST (*tmp_to_xfer_partial) (struct target_ops *ops, | |
797 | enum target_object object, | |
798 | const char *annex, | |
799 | gdb_byte *readbuf, | |
800 | const gdb_byte *writebuf, | |
801 | ULONGEST offset, | |
802 | LONGEST len); | |
803 | static int (*tmp_to_insert_breakpoint) (struct gdbarch *, | |
804 | struct bp_target_info *); | |
805 | static int (*tmp_to_remove_breakpoint) (struct gdbarch *, | |
806 | struct bp_target_info *); | |
9093389c PA |
807 | static int (*tmp_to_stopped_by_watchpoint) (void); |
808 | static int (*tmp_to_stopped_data_address) (struct target_ops *, CORE_ADDR *); | |
27699eea | 809 | |
0156b218 MS |
810 | static void record_restore (void); |
811 | ||
27699eea | 812 | /* Open the process record target. */ |
6df67667 | 813 | |
69d05d38 | 814 | static void |
27699eea MS |
815 | record_core_open_1 (char *name, int from_tty) |
816 | { | |
817 | struct regcache *regcache = get_current_regcache (); | |
818 | int regnum = gdbarch_num_regs (get_regcache_arch (regcache)); | |
819 | int i; | |
820 | ||
821 | /* Get record_core_regbuf. */ | |
822 | target_fetch_registers (regcache, -1); | |
823 | record_core_regbuf = xmalloc (MAX_REGISTER_SIZE * regnum); | |
824 | for (i = 0; i < regnum; i ++) | |
825 | regcache_raw_collect (regcache, i, | |
826 | record_core_regbuf + MAX_REGISTER_SIZE * i); | |
827 | ||
828 | /* Get record_core_start and record_core_end. */ | |
829 | if (build_section_table (core_bfd, &record_core_start, &record_core_end)) | |
830 | { | |
831 | xfree (record_core_regbuf); | |
832 | record_core_regbuf = NULL; | |
833 | error (_("\"%s\": Can't find sections: %s"), | |
834 | bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ())); | |
835 | } | |
836 | ||
837 | push_target (&record_core_ops); | |
0156b218 | 838 | record_restore (); |
27699eea MS |
839 | } |
840 | ||
841 | /* "to_open" target method for 'live' processes. */ | |
842 | ||
843 | static void | |
844 | record_open_1 (char *name, int from_tty) | |
69d05d38 | 845 | { |
69d05d38 HZ |
846 | if (record_debug) |
847 | fprintf_unfiltered (gdb_stdlog, "Process record: record_open\n"); | |
848 | ||
849 | /* check exec */ | |
850 | if (!target_has_execution) | |
851 | error (_("Process record: the program is not being run.")); | |
852 | if (non_stop) | |
853 | error (_("Process record target can't debug inferior in non-stop mode " | |
854 | "(non-stop).")); | |
855 | if (target_async_permitted) | |
856 | error (_("Process record target can't debug inferior in asynchronous " | |
857 | "mode (target-async).")); | |
858 | ||
a97b0ac8 | 859 | if (!gdbarch_process_record_p (target_gdbarch)) |
69d05d38 HZ |
860 | error (_("Process record: the current architecture doesn't support " |
861 | "record function.")); | |
862 | ||
27699eea MS |
863 | if (!tmp_to_resume) |
864 | error (_("Could not find 'to_resume' method on the target stack.")); | |
865 | if (!tmp_to_wait) | |
866 | error (_("Could not find 'to_wait' method on the target stack.")); | |
867 | if (!tmp_to_store_registers) | |
868 | error (_("Could not find 'to_store_registers' method on the target stack.")); | |
869 | if (!tmp_to_insert_breakpoint) | |
870 | error (_("Could not find 'to_insert_breakpoint' method on the target stack.")); | |
871 | if (!tmp_to_remove_breakpoint) | |
872 | error (_("Could not find 'to_remove_breakpoint' method on the target stack.")); | |
7155de5a HZ |
873 | if (!tmp_to_stopped_by_watchpoint) |
874 | error (_("Could not find 'to_stopped_by_watchpoint' method on the target stack.")); | |
875 | if (!tmp_to_stopped_data_address) | |
876 | error (_("Could not find 'to_stopped_data_address' method on the target stack.")); | |
27699eea MS |
877 | |
878 | push_target (&record_ops); | |
879 | } | |
880 | ||
881 | /* "to_open" target method. Open the process record target. */ | |
882 | ||
883 | static void | |
884 | record_open (char *name, int from_tty) | |
885 | { | |
886 | struct target_ops *t; | |
887 | ||
888 | if (record_debug) | |
889 | fprintf_unfiltered (gdb_stdlog, "Process record: record_open\n"); | |
890 | ||
69d05d38 HZ |
891 | /* Check if record target is already running. */ |
892 | if (current_target.to_stratum == record_stratum) | |
5d40bb85 HZ |
893 | error (_("Process record target already running. Use \"record stop\" to " |
894 | "stop record target first.")); | |
69d05d38 | 895 | |
27699eea MS |
896 | /* Reset the tmp beneath pointers. */ |
897 | tmp_to_resume_ops = NULL; | |
898 | tmp_to_resume = NULL; | |
899 | tmp_to_wait_ops = NULL; | |
900 | tmp_to_wait = NULL; | |
901 | tmp_to_store_registers_ops = NULL; | |
902 | tmp_to_store_registers = NULL; | |
903 | tmp_to_xfer_partial_ops = NULL; | |
904 | tmp_to_xfer_partial = NULL; | |
905 | tmp_to_insert_breakpoint = NULL; | |
906 | tmp_to_remove_breakpoint = NULL; | |
7155de5a HZ |
907 | tmp_to_stopped_by_watchpoint = NULL; |
908 | tmp_to_stopped_data_address = NULL; | |
69d05d38 HZ |
909 | |
910 | /* Set the beneath function pointers. */ | |
911 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
912 | { | |
27699eea | 913 | if (!tmp_to_resume) |
69d05d38 | 914 | { |
27699eea MS |
915 | tmp_to_resume = t->to_resume; |
916 | tmp_to_resume_ops = t; | |
69d05d38 | 917 | } |
27699eea | 918 | if (!tmp_to_wait) |
69d05d38 | 919 | { |
27699eea MS |
920 | tmp_to_wait = t->to_wait; |
921 | tmp_to_wait_ops = t; | |
69d05d38 | 922 | } |
27699eea | 923 | if (!tmp_to_store_registers) |
69d05d38 | 924 | { |
27699eea MS |
925 | tmp_to_store_registers = t->to_store_registers; |
926 | tmp_to_store_registers_ops = t; | |
69d05d38 | 927 | } |
27699eea | 928 | if (!tmp_to_xfer_partial) |
69d05d38 | 929 | { |
27699eea MS |
930 | tmp_to_xfer_partial = t->to_xfer_partial; |
931 | tmp_to_xfer_partial_ops = t; | |
69d05d38 | 932 | } |
27699eea MS |
933 | if (!tmp_to_insert_breakpoint) |
934 | tmp_to_insert_breakpoint = t->to_insert_breakpoint; | |
935 | if (!tmp_to_remove_breakpoint) | |
936 | tmp_to_remove_breakpoint = t->to_remove_breakpoint; | |
9093389c PA |
937 | if (!tmp_to_stopped_by_watchpoint) |
938 | tmp_to_stopped_by_watchpoint = t->to_stopped_by_watchpoint; | |
939 | if (!tmp_to_stopped_data_address) | |
940 | tmp_to_stopped_data_address = t->to_stopped_data_address; | |
69d05d38 | 941 | } |
27699eea MS |
942 | if (!tmp_to_xfer_partial) |
943 | error (_("Could not find 'to_xfer_partial' method on the target stack.")); | |
69d05d38 HZ |
944 | |
945 | /* Reset */ | |
946 | record_insn_num = 0; | |
b54295a7 | 947 | record_insn_count = 0; |
69d05d38 HZ |
948 | record_list = &record_first; |
949 | record_list->next = NULL; | |
27699eea MS |
950 | |
951 | /* Set the tmp beneath pointers to beneath pointers. */ | |
952 | record_beneath_to_resume_ops = tmp_to_resume_ops; | |
953 | record_beneath_to_resume = tmp_to_resume; | |
954 | record_beneath_to_wait_ops = tmp_to_wait_ops; | |
955 | record_beneath_to_wait = tmp_to_wait; | |
956 | record_beneath_to_store_registers_ops = tmp_to_store_registers_ops; | |
957 | record_beneath_to_store_registers = tmp_to_store_registers; | |
958 | record_beneath_to_xfer_partial_ops = tmp_to_xfer_partial_ops; | |
959 | record_beneath_to_xfer_partial = tmp_to_xfer_partial; | |
960 | record_beneath_to_insert_breakpoint = tmp_to_insert_breakpoint; | |
961 | record_beneath_to_remove_breakpoint = tmp_to_remove_breakpoint; | |
9093389c PA |
962 | record_beneath_to_stopped_by_watchpoint = tmp_to_stopped_by_watchpoint; |
963 | record_beneath_to_stopped_data_address = tmp_to_stopped_data_address; | |
27699eea | 964 | |
c0edd9ed | 965 | if (core_bfd) |
27699eea MS |
966 | record_core_open_1 (name, from_tty); |
967 | else | |
968 | record_open_1 (name, from_tty); | |
69d05d38 HZ |
969 | } |
970 | ||
6df67667 MS |
971 | /* "to_close" target method. Close the process record target. */ |
972 | ||
69d05d38 HZ |
973 | static void |
974 | record_close (int quitting) | |
975 | { | |
27699eea MS |
976 | struct record_core_buf_entry *entry; |
977 | ||
69d05d38 HZ |
978 | if (record_debug) |
979 | fprintf_unfiltered (gdb_stdlog, "Process record: record_close\n"); | |
980 | ||
981 | record_list_release (record_list); | |
27699eea MS |
982 | |
983 | /* Release record_core_regbuf. */ | |
984 | if (record_core_regbuf) | |
985 | { | |
986 | xfree (record_core_regbuf); | |
987 | record_core_regbuf = NULL; | |
988 | } | |
989 | ||
990 | /* Release record_core_buf_list. */ | |
991 | if (record_core_buf_list) | |
992 | { | |
993 | for (entry = record_core_buf_list->prev; entry; entry = entry->prev) | |
994 | { | |
995 | xfree (record_core_buf_list); | |
996 | record_core_buf_list = entry; | |
997 | } | |
998 | record_core_buf_list = NULL; | |
999 | } | |
69d05d38 HZ |
1000 | } |
1001 | ||
1002 | static int record_resume_step = 0; | |
69d05d38 | 1003 | |
6df67667 MS |
1004 | /* "to_resume" target method. Resume the process record target. */ |
1005 | ||
69d05d38 HZ |
1006 | static void |
1007 | record_resume (struct target_ops *ops, ptid_t ptid, int step, | |
8b739a96 | 1008 | enum target_signal signal) |
69d05d38 HZ |
1009 | { |
1010 | record_resume_step = step; | |
69d05d38 HZ |
1011 | |
1012 | if (!RECORD_IS_REPLAY) | |
1013 | { | |
f02253f1 HZ |
1014 | struct gdbarch *gdbarch = target_thread_architecture (ptid); |
1015 | ||
e6a386cd | 1016 | record_message (get_current_regcache (), signal); |
f02253f1 HZ |
1017 | |
1018 | if (!step) | |
1019 | { | |
1020 | /* This is not hard single step. */ | |
1021 | if (!gdbarch_software_single_step_p (gdbarch)) | |
1022 | { | |
1023 | /* This is a normal continue. */ | |
1024 | step = 1; | |
1025 | } | |
1026 | else | |
1027 | { | |
1028 | /* This arch support soft sigle step. */ | |
1029 | if (single_step_breakpoints_inserted ()) | |
1030 | { | |
1031 | /* This is a soft single step. */ | |
1032 | record_resume_step = 1; | |
1033 | } | |
1034 | else | |
1035 | { | |
1036 | /* This is a continue. | |
1037 | Try to insert a soft single step breakpoint. */ | |
1038 | if (!gdbarch_software_single_step (gdbarch, | |
1039 | get_current_frame ())) | |
1040 | { | |
1041 | /* This system don't want use soft single step. | |
1042 | Use hard sigle step. */ | |
1043 | step = 1; | |
1044 | } | |
1045 | } | |
1046 | } | |
1047 | } | |
1048 | ||
1049 | record_beneath_to_resume (record_beneath_to_resume_ops, | |
1050 | ptid, step, signal); | |
69d05d38 HZ |
1051 | } |
1052 | } | |
1053 | ||
1054 | static int record_get_sig = 0; | |
1055 | ||
6df67667 MS |
1056 | /* SIGINT signal handler, registered by "to_wait" method. */ |
1057 | ||
69d05d38 HZ |
1058 | static void |
1059 | record_sig_handler (int signo) | |
1060 | { | |
1061 | if (record_debug) | |
1062 | fprintf_unfiltered (gdb_stdlog, "Process record: get a signal\n"); | |
1063 | ||
1064 | /* It will break the running inferior in replay mode. */ | |
1065 | record_resume_step = 1; | |
1066 | ||
1067 | /* It will let record_wait set inferior status to get the signal | |
1068 | SIGINT. */ | |
1069 | record_get_sig = 1; | |
1070 | } | |
1071 | ||
1072 | static void | |
1073 | record_wait_cleanups (void *ignore) | |
1074 | { | |
1075 | if (execution_direction == EXEC_REVERSE) | |
1076 | { | |
1077 | if (record_list->next) | |
1078 | record_list = record_list->next; | |
1079 | } | |
1080 | else | |
1081 | record_list = record_list->prev; | |
1082 | } | |
1083 | ||
6df67667 MS |
1084 | /* "to_wait" target method for process record target. |
1085 | ||
1086 | In record mode, the target is always run in singlestep mode | |
1087 | (even when gdb says to continue). The to_wait method intercepts | |
1088 | the stop events and determines which ones are to be passed on to | |
1089 | gdb. Most stop events are just singlestep events that gdb is not | |
1090 | to know about, so the to_wait method just records them and keeps | |
1091 | singlestepping. | |
1092 | ||
1093 | In replay mode, this function emulates the recorded execution log, | |
1094 | one instruction at a time (forward or backward), and determines | |
1095 | where to stop. */ | |
69d05d38 HZ |
1096 | |
1097 | static ptid_t | |
1098 | record_wait (struct target_ops *ops, | |
47608cb1 PA |
1099 | ptid_t ptid, struct target_waitstatus *status, |
1100 | int options) | |
69d05d38 HZ |
1101 | { |
1102 | struct cleanup *set_cleanups = record_gdb_operation_disable_set (); | |
1103 | ||
1104 | if (record_debug) | |
1105 | fprintf_unfiltered (gdb_stdlog, | |
1106 | "Process record: record_wait " | |
1107 | "record_resume_step = %d\n", | |
1108 | record_resume_step); | |
1109 | ||
eaaffdf4 HZ |
1110 | record_get_sig = 0; |
1111 | signal (SIGINT, record_sig_handler); | |
1112 | ||
27699eea | 1113 | if (!RECORD_IS_REPLAY && ops != &record_core_ops) |
69d05d38 | 1114 | { |
69d05d38 HZ |
1115 | if (record_resume_step) |
1116 | { | |
1117 | /* This is a single step. */ | |
1118 | return record_beneath_to_wait (record_beneath_to_wait_ops, | |
90092760 | 1119 | ptid, status, options); |
69d05d38 HZ |
1120 | } |
1121 | else | |
1122 | { | |
1123 | /* This is not a single step. */ | |
1124 | ptid_t ret; | |
1125 | CORE_ADDR tmp_pc; | |
f02253f1 | 1126 | struct gdbarch *gdbarch = target_thread_architecture (inferior_ptid); |
69d05d38 HZ |
1127 | |
1128 | while (1) | |
1129 | { | |
1130 | ret = record_beneath_to_wait (record_beneath_to_wait_ops, | |
90092760 | 1131 | ptid, status, options); |
69d05d38 | 1132 | |
f02253f1 HZ |
1133 | if (single_step_breakpoints_inserted ()) |
1134 | remove_single_step_breakpoints (); | |
1135 | ||
eaaffdf4 HZ |
1136 | if (record_resume_step) |
1137 | return ret; | |
1138 | ||
8b739a96 | 1139 | /* Is this a SIGTRAP? */ |
69d05d38 HZ |
1140 | if (status->kind == TARGET_WAITKIND_STOPPED |
1141 | && status->value.sig == TARGET_SIGNAL_TRAP) | |
1142 | { | |
6c95b8df | 1143 | struct regcache *regcache; |
a9840291 | 1144 | struct address_space *aspace; |
6c95b8df | 1145 | |
9093389c PA |
1146 | /* Yes -- this is likely our single-step finishing, |
1147 | but check if there's any reason the core would be | |
1148 | interested in the event. */ | |
1149 | ||
69d05d38 | 1150 | registers_changed (); |
6c95b8df PA |
1151 | regcache = get_current_regcache (); |
1152 | tmp_pc = regcache_read_pc (regcache); | |
a9840291 | 1153 | aspace = get_regcache_aspace (regcache); |
9093389c PA |
1154 | |
1155 | if (target_stopped_by_watchpoint ()) | |
1156 | { | |
1157 | /* Always interested in watchpoints. */ | |
1158 | } | |
a9840291 | 1159 | else if (breakpoint_inserted_here_p (aspace, tmp_pc)) |
69d05d38 | 1160 | { |
9093389c PA |
1161 | /* There is a breakpoint here. Let the core |
1162 | handle it. */ | |
a9840291 PA |
1163 | if (software_breakpoint_inserted_here_p (aspace, tmp_pc)) |
1164 | { | |
1165 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1166 | CORE_ADDR decr_pc_after_break | |
1167 | = gdbarch_decr_pc_after_break (gdbarch); | |
1168 | if (decr_pc_after_break) | |
1169 | regcache_write_pc (regcache, | |
1170 | tmp_pc + decr_pc_after_break); | |
1171 | } | |
69d05d38 HZ |
1172 | } |
1173 | else | |
1174 | { | |
f02253f1 HZ |
1175 | /* This is a single-step trap. Record the |
1176 | insn and issue another step. | |
1177 | FIXME: this part can be a random SIGTRAP too. | |
1178 | But GDB cannot handle it. */ | |
1179 | int step = 1; | |
1180 | ||
e6a386cd HZ |
1181 | if (!record_message_wrapper_safe (regcache, |
1182 | TARGET_SIGNAL_0)) | |
1183 | { | |
1184 | status->kind = TARGET_WAITKIND_STOPPED; | |
1185 | status->value.sig = TARGET_SIGNAL_0; | |
1186 | break; | |
1187 | } | |
6c95b8df | 1188 | |
f02253f1 HZ |
1189 | if (gdbarch_software_single_step_p (gdbarch)) |
1190 | { | |
1191 | /* Try to insert the software single step breakpoint. | |
1192 | If insert success, set step to 0. */ | |
1193 | set_executing (inferior_ptid, 0); | |
1194 | reinit_frame_cache (); | |
1195 | if (gdbarch_software_single_step (gdbarch, | |
1196 | get_current_frame ())) | |
1197 | step = 0; | |
1198 | set_executing (inferior_ptid, 1); | |
1199 | } | |
1200 | ||
69d05d38 | 1201 | record_beneath_to_resume (record_beneath_to_resume_ops, |
f02253f1 | 1202 | ptid, step, |
88fef440 | 1203 | TARGET_SIGNAL_0); |
69d05d38 HZ |
1204 | continue; |
1205 | } | |
1206 | } | |
1207 | ||
1208 | /* The inferior is broken by a breakpoint or a signal. */ | |
1209 | break; | |
1210 | } | |
1211 | ||
1212 | return ret; | |
1213 | } | |
1214 | } | |
1215 | else | |
1216 | { | |
1217 | struct regcache *regcache = get_current_regcache (); | |
5af949e3 | 1218 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
a9840291 | 1219 | struct address_space *aspace = get_regcache_aspace (regcache); |
69d05d38 HZ |
1220 | int continue_flag = 1; |
1221 | int first_record_end = 1; | |
1222 | struct cleanup *old_cleanups = make_cleanup (record_wait_cleanups, 0); | |
1223 | CORE_ADDR tmp_pc; | |
1224 | ||
9093389c | 1225 | record_hw_watchpoint = 0; |
69d05d38 HZ |
1226 | status->kind = TARGET_WAITKIND_STOPPED; |
1227 | ||
1228 | /* Check breakpoint when forward execute. */ | |
1229 | if (execution_direction == EXEC_FORWARD) | |
1230 | { | |
1231 | tmp_pc = regcache_read_pc (regcache); | |
a9840291 | 1232 | if (breakpoint_inserted_here_p (aspace, tmp_pc)) |
69d05d38 | 1233 | { |
a9840291 PA |
1234 | int decr_pc_after_break = gdbarch_decr_pc_after_break (gdbarch); |
1235 | ||
69d05d38 HZ |
1236 | if (record_debug) |
1237 | fprintf_unfiltered (gdb_stdlog, | |
5af949e3 UW |
1238 | "Process record: break at %s.\n", |
1239 | paddress (gdbarch, tmp_pc)); | |
a9840291 PA |
1240 | |
1241 | if (decr_pc_after_break | |
1242 | && !record_resume_step | |
1243 | && software_breakpoint_inserted_here_p (aspace, tmp_pc)) | |
69d05d38 | 1244 | regcache_write_pc (regcache, |
a9840291 | 1245 | tmp_pc + decr_pc_after_break); |
69d05d38 HZ |
1246 | goto replay_out; |
1247 | } | |
1248 | } | |
1249 | ||
69d05d38 HZ |
1250 | /* If GDB is in terminal_inferior mode, it will not get the signal. |
1251 | And in GDB replay mode, GDB doesn't need to be in terminal_inferior | |
1252 | mode, because inferior will not executed. | |
1253 | Then set it to terminal_ours to make GDB get the signal. */ | |
1254 | target_terminal_ours (); | |
1255 | ||
1256 | /* In EXEC_FORWARD mode, record_list points to the tail of prev | |
1257 | instruction. */ | |
1258 | if (execution_direction == EXEC_FORWARD && record_list->next) | |
1259 | record_list = record_list->next; | |
1260 | ||
1261 | /* Loop over the record_list, looking for the next place to | |
1262 | stop. */ | |
1263 | do | |
1264 | { | |
1265 | /* Check for beginning and end of log. */ | |
1266 | if (execution_direction == EXEC_REVERSE | |
1267 | && record_list == &record_first) | |
1268 | { | |
1269 | /* Hit beginning of record log in reverse. */ | |
1270 | status->kind = TARGET_WAITKIND_NO_HISTORY; | |
1271 | break; | |
1272 | } | |
1273 | if (execution_direction != EXEC_REVERSE && !record_list->next) | |
1274 | { | |
1275 | /* Hit end of record log going forward. */ | |
1276 | status->kind = TARGET_WAITKIND_NO_HISTORY; | |
1277 | break; | |
1278 | } | |
1279 | ||
90ca0479 MS |
1280 | record_exec_insn (regcache, gdbarch, record_list); |
1281 | ||
1282 | if (record_list->type == record_end) | |
69d05d38 HZ |
1283 | { |
1284 | if (record_debug > 1) | |
1285 | fprintf_unfiltered (gdb_stdlog, | |
1286 | "Process record: record_end %s to " | |
1287 | "inferior.\n", | |
1288 | host_address_to_string (record_list)); | |
1289 | ||
1290 | if (first_record_end && execution_direction == EXEC_REVERSE) | |
1291 | { | |
1292 | /* When reverse excute, the first record_end is the part of | |
1293 | current instruction. */ | |
1294 | first_record_end = 0; | |
1295 | } | |
1296 | else | |
1297 | { | |
1298 | /* In EXEC_REVERSE mode, this is the record_end of prev | |
1299 | instruction. | |
1300 | In EXEC_FORWARD mode, this is the record_end of current | |
1301 | instruction. */ | |
1302 | /* step */ | |
1303 | if (record_resume_step) | |
1304 | { | |
1305 | if (record_debug > 1) | |
1306 | fprintf_unfiltered (gdb_stdlog, | |
1307 | "Process record: step.\n"); | |
1308 | continue_flag = 0; | |
1309 | } | |
1310 | ||
1311 | /* check breakpoint */ | |
1312 | tmp_pc = regcache_read_pc (regcache); | |
a9840291 | 1313 | if (breakpoint_inserted_here_p (aspace, tmp_pc)) |
69d05d38 | 1314 | { |
a9840291 PA |
1315 | int decr_pc_after_break |
1316 | = gdbarch_decr_pc_after_break (gdbarch); | |
1317 | ||
69d05d38 HZ |
1318 | if (record_debug) |
1319 | fprintf_unfiltered (gdb_stdlog, | |
1320 | "Process record: break " | |
5af949e3 UW |
1321 | "at %s.\n", |
1322 | paddress (gdbarch, tmp_pc)); | |
a9840291 | 1323 | if (decr_pc_after_break |
69d05d38 | 1324 | && execution_direction == EXEC_FORWARD |
a9840291 PA |
1325 | && !record_resume_step |
1326 | && software_breakpoint_inserted_here_p (aspace, | |
1327 | tmp_pc)) | |
69d05d38 | 1328 | regcache_write_pc (regcache, |
a9840291 | 1329 | tmp_pc + decr_pc_after_break); |
69d05d38 HZ |
1330 | continue_flag = 0; |
1331 | } | |
9093389c PA |
1332 | |
1333 | if (record_hw_watchpoint) | |
1334 | { | |
1335 | if (record_debug) | |
a9840291 PA |
1336 | fprintf_unfiltered (gdb_stdlog, "\ |
1337 | Process record: hit hw watchpoint.\n"); | |
9093389c PA |
1338 | continue_flag = 0; |
1339 | } | |
8b739a96 HZ |
1340 | /* Check target signal */ |
1341 | if (record_list->u.end.sigval != TARGET_SIGNAL_0) | |
1342 | /* FIXME: better way to check */ | |
1343 | continue_flag = 0; | |
69d05d38 HZ |
1344 | } |
1345 | } | |
1346 | ||
1347 | if (continue_flag) | |
1348 | { | |
1349 | if (execution_direction == EXEC_REVERSE) | |
1350 | { | |
1351 | if (record_list->prev) | |
1352 | record_list = record_list->prev; | |
1353 | } | |
1354 | else | |
1355 | { | |
1356 | if (record_list->next) | |
1357 | record_list = record_list->next; | |
1358 | } | |
1359 | } | |
1360 | } | |
1361 | while (continue_flag); | |
1362 | ||
69d05d38 HZ |
1363 | replay_out: |
1364 | if (record_get_sig) | |
1365 | status->value.sig = TARGET_SIGNAL_INT; | |
8b739a96 HZ |
1366 | else if (record_list->u.end.sigval != TARGET_SIGNAL_0) |
1367 | /* FIXME: better way to check */ | |
1368 | status->value.sig = record_list->u.end.sigval; | |
69d05d38 HZ |
1369 | else |
1370 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1371 | ||
1372 | discard_cleanups (old_cleanups); | |
1373 | } | |
1374 | ||
eaaffdf4 HZ |
1375 | signal (SIGINT, handle_sigint); |
1376 | ||
69d05d38 HZ |
1377 | do_cleanups (set_cleanups); |
1378 | return inferior_ptid; | |
1379 | } | |
1380 | ||
9093389c PA |
1381 | static int |
1382 | record_stopped_by_watchpoint (void) | |
1383 | { | |
1384 | if (RECORD_IS_REPLAY) | |
1385 | return record_hw_watchpoint; | |
1386 | else | |
1387 | return record_beneath_to_stopped_by_watchpoint (); | |
1388 | } | |
1389 | ||
1390 | static int | |
1391 | record_stopped_data_address (struct target_ops *ops, CORE_ADDR *addr_p) | |
1392 | { | |
1393 | if (RECORD_IS_REPLAY) | |
1394 | return 0; | |
1395 | else | |
1396 | return record_beneath_to_stopped_data_address (ops, addr_p); | |
1397 | } | |
1398 | ||
6df67667 MS |
1399 | /* "to_disconnect" method for process record target. */ |
1400 | ||
69d05d38 HZ |
1401 | static void |
1402 | record_disconnect (struct target_ops *target, char *args, int from_tty) | |
1403 | { | |
1404 | if (record_debug) | |
1405 | fprintf_unfiltered (gdb_stdlog, "Process record: record_disconnect\n"); | |
1406 | ||
1407 | unpush_target (&record_ops); | |
1408 | target_disconnect (args, from_tty); | |
1409 | } | |
1410 | ||
6df67667 MS |
1411 | /* "to_detach" method for process record target. */ |
1412 | ||
69d05d38 HZ |
1413 | static void |
1414 | record_detach (struct target_ops *ops, char *args, int from_tty) | |
1415 | { | |
1416 | if (record_debug) | |
1417 | fprintf_unfiltered (gdb_stdlog, "Process record: record_detach\n"); | |
1418 | ||
1419 | unpush_target (&record_ops); | |
1420 | target_detach (args, from_tty); | |
1421 | } | |
1422 | ||
6df67667 MS |
1423 | /* "to_mourn_inferior" method for process record target. */ |
1424 | ||
69d05d38 HZ |
1425 | static void |
1426 | record_mourn_inferior (struct target_ops *ops) | |
1427 | { | |
1428 | if (record_debug) | |
1429 | fprintf_unfiltered (gdb_stdlog, "Process record: " | |
1430 | "record_mourn_inferior\n"); | |
1431 | ||
1432 | unpush_target (&record_ops); | |
1433 | target_mourn_inferior (); | |
1434 | } | |
1435 | ||
1436 | /* Close process record target before killing the inferior process. */ | |
1437 | ||
1438 | static void | |
1439 | record_kill (struct target_ops *ops) | |
1440 | { | |
1441 | if (record_debug) | |
1442 | fprintf_unfiltered (gdb_stdlog, "Process record: record_kill\n"); | |
1443 | ||
1444 | unpush_target (&record_ops); | |
1445 | target_kill (); | |
1446 | } | |
1447 | ||
1448 | /* Record registers change (by user or by GDB) to list as an instruction. */ | |
1449 | ||
1450 | static void | |
1451 | record_registers_change (struct regcache *regcache, int regnum) | |
1452 | { | |
1453 | /* Check record_insn_num. */ | |
1454 | record_check_insn_num (0); | |
1455 | ||
1456 | record_arch_list_head = NULL; | |
1457 | record_arch_list_tail = NULL; | |
1458 | ||
1459 | if (regnum < 0) | |
1460 | { | |
1461 | int i; | |
123f5f96 | 1462 | |
69d05d38 HZ |
1463 | for (i = 0; i < gdbarch_num_regs (get_regcache_arch (regcache)); i++) |
1464 | { | |
1465 | if (record_arch_list_add_reg (regcache, i)) | |
1466 | { | |
1467 | record_list_release (record_arch_list_tail); | |
1468 | error (_("Process record: failed to record execution log.")); | |
1469 | } | |
1470 | } | |
1471 | } | |
1472 | else | |
1473 | { | |
1474 | if (record_arch_list_add_reg (regcache, regnum)) | |
1475 | { | |
1476 | record_list_release (record_arch_list_tail); | |
1477 | error (_("Process record: failed to record execution log.")); | |
1478 | } | |
1479 | } | |
1480 | if (record_arch_list_add_end ()) | |
1481 | { | |
1482 | record_list_release (record_arch_list_tail); | |
1483 | error (_("Process record: failed to record execution log.")); | |
1484 | } | |
1485 | record_list->next = record_arch_list_head; | |
1486 | record_arch_list_head->prev = record_list; | |
1487 | record_list = record_arch_list_tail; | |
1488 | ||
1489 | if (record_insn_num == record_insn_max_num && record_insn_max_num) | |
1490 | record_list_release_first (); | |
1491 | else | |
1492 | record_insn_num++; | |
1493 | } | |
1494 | ||
6df67667 MS |
1495 | /* "to_store_registers" method for process record target. */ |
1496 | ||
69d05d38 HZ |
1497 | static void |
1498 | record_store_registers (struct target_ops *ops, struct regcache *regcache, | |
1499 | int regno) | |
1500 | { | |
1501 | if (!record_gdb_operation_disable) | |
1502 | { | |
1503 | if (RECORD_IS_REPLAY) | |
1504 | { | |
1505 | int n; | |
69d05d38 HZ |
1506 | |
1507 | /* Let user choose if he wants to write register or not. */ | |
1508 | if (regno < 0) | |
1509 | n = | |
604ad007 JB |
1510 | query (_("Because GDB is in replay mode, changing the " |
1511 | "value of a register will make the execution " | |
1512 | "log unusable from this point onward. " | |
1513 | "Change all registers?")); | |
69d05d38 HZ |
1514 | else |
1515 | n = | |
604ad007 JB |
1516 | query (_("Because GDB is in replay mode, changing the value " |
1517 | "of a register will make the execution log unusable " | |
1518 | "from this point onward. Change register %s?"), | |
69d05d38 HZ |
1519 | gdbarch_register_name (get_regcache_arch (regcache), |
1520 | regno)); | |
1521 | ||
1522 | if (!n) | |
1523 | { | |
1524 | /* Invalidate the value of regcache that was set in function | |
1525 | "regcache_raw_write". */ | |
1526 | if (regno < 0) | |
1527 | { | |
1528 | int i; | |
123f5f96 | 1529 | |
69d05d38 HZ |
1530 | for (i = 0; |
1531 | i < gdbarch_num_regs (get_regcache_arch (regcache)); | |
1532 | i++) | |
1533 | regcache_invalidate (regcache, i); | |
1534 | } | |
1535 | else | |
1536 | regcache_invalidate (regcache, regno); | |
1537 | ||
1538 | error (_("Process record canceled the operation.")); | |
1539 | } | |
1540 | ||
1541 | /* Destroy the record from here forward. */ | |
61f75dd8 | 1542 | record_list_release_following (record_list); |
69d05d38 HZ |
1543 | } |
1544 | ||
1545 | record_registers_change (regcache, regno); | |
1546 | } | |
1547 | record_beneath_to_store_registers (record_beneath_to_store_registers_ops, | |
1548 | regcache, regno); | |
1549 | } | |
1550 | ||
27699eea | 1551 | /* "to_xfer_partial" method. Behavior is conditional on RECORD_IS_REPLAY. |
69d05d38 HZ |
1552 | In replay mode, we cannot write memory unles we are willing to |
1553 | invalidate the record/replay log from this point forward. */ | |
1554 | ||
1555 | static LONGEST | |
1556 | record_xfer_partial (struct target_ops *ops, enum target_object object, | |
1557 | const char *annex, gdb_byte *readbuf, | |
1558 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
1559 | { | |
1560 | if (!record_gdb_operation_disable | |
1561 | && (object == TARGET_OBJECT_MEMORY | |
1562 | || object == TARGET_OBJECT_RAW_MEMORY) && writebuf) | |
1563 | { | |
1564 | if (RECORD_IS_REPLAY) | |
1565 | { | |
1566 | /* Let user choose if he wants to write memory or not. */ | |
604ad007 JB |
1567 | if (!query (_("Because GDB is in replay mode, writing to memory " |
1568 | "will make the execution log unusable from this " | |
1569 | "point onward. Write memory at address %s?"), | |
5af949e3 | 1570 | paddress (target_gdbarch, offset))) |
9a9dc473 | 1571 | error (_("Process record canceled the operation.")); |
69d05d38 HZ |
1572 | |
1573 | /* Destroy the record from here forward. */ | |
61f75dd8 | 1574 | record_list_release_following (record_list); |
69d05d38 HZ |
1575 | } |
1576 | ||
1577 | /* Check record_insn_num */ | |
1578 | record_check_insn_num (0); | |
1579 | ||
1580 | /* Record registers change to list as an instruction. */ | |
1581 | record_arch_list_head = NULL; | |
1582 | record_arch_list_tail = NULL; | |
1583 | if (record_arch_list_add_mem (offset, len)) | |
1584 | { | |
1585 | record_list_release (record_arch_list_tail); | |
1586 | if (record_debug) | |
1587 | fprintf_unfiltered (gdb_stdlog, | |
0156b218 MS |
1588 | "Process record: failed to record " |
1589 | "execution log."); | |
69d05d38 HZ |
1590 | return -1; |
1591 | } | |
1592 | if (record_arch_list_add_end ()) | |
1593 | { | |
1594 | record_list_release (record_arch_list_tail); | |
1595 | if (record_debug) | |
1596 | fprintf_unfiltered (gdb_stdlog, | |
0156b218 MS |
1597 | "Process record: failed to record " |
1598 | "execution log."); | |
69d05d38 HZ |
1599 | return -1; |
1600 | } | |
1601 | record_list->next = record_arch_list_head; | |
1602 | record_arch_list_head->prev = record_list; | |
1603 | record_list = record_arch_list_tail; | |
1604 | ||
1605 | if (record_insn_num == record_insn_max_num && record_insn_max_num) | |
1606 | record_list_release_first (); | |
1607 | else | |
1608 | record_insn_num++; | |
1609 | } | |
1610 | ||
1611 | return record_beneath_to_xfer_partial (record_beneath_to_xfer_partial_ops, | |
1612 | object, annex, readbuf, writebuf, | |
1613 | offset, len); | |
1614 | } | |
1615 | ||
1616 | /* Behavior is conditional on RECORD_IS_REPLAY. | |
1617 | We will not actually insert or remove breakpoints when replaying, | |
1618 | nor when recording. */ | |
1619 | ||
1620 | static int | |
a6d9a66e UW |
1621 | record_insert_breakpoint (struct gdbarch *gdbarch, |
1622 | struct bp_target_info *bp_tgt) | |
69d05d38 HZ |
1623 | { |
1624 | if (!RECORD_IS_REPLAY) | |
1625 | { | |
1626 | struct cleanup *old_cleanups = record_gdb_operation_disable_set (); | |
a6d9a66e | 1627 | int ret = record_beneath_to_insert_breakpoint (gdbarch, bp_tgt); |
69d05d38 HZ |
1628 | |
1629 | do_cleanups (old_cleanups); | |
1630 | ||
1631 | return ret; | |
1632 | } | |
1633 | ||
1634 | return 0; | |
1635 | } | |
1636 | ||
6df67667 MS |
1637 | /* "to_remove_breakpoint" method for process record target. */ |
1638 | ||
69d05d38 | 1639 | static int |
a6d9a66e UW |
1640 | record_remove_breakpoint (struct gdbarch *gdbarch, |
1641 | struct bp_target_info *bp_tgt) | |
69d05d38 HZ |
1642 | { |
1643 | if (!RECORD_IS_REPLAY) | |
1644 | { | |
1645 | struct cleanup *old_cleanups = record_gdb_operation_disable_set (); | |
a6d9a66e | 1646 | int ret = record_beneath_to_remove_breakpoint (gdbarch, bp_tgt); |
69d05d38 HZ |
1647 | |
1648 | do_cleanups (old_cleanups); | |
1649 | ||
1650 | return ret; | |
1651 | } | |
1652 | ||
1653 | return 0; | |
1654 | } | |
1655 | ||
6df67667 | 1656 | /* "to_can_execute_reverse" method for process record target. */ |
27699eea | 1657 | |
69d05d38 HZ |
1658 | static int |
1659 | record_can_execute_reverse (void) | |
1660 | { | |
1661 | return 1; | |
1662 | } | |
1663 | ||
6b04bdb7 MS |
1664 | /* "to_get_bookmark" method for process record and prec over core. */ |
1665 | ||
1666 | static gdb_byte * | |
1667 | record_get_bookmark (char *args, int from_tty) | |
1668 | { | |
1669 | gdb_byte *ret = NULL; | |
1670 | ||
1671 | /* Return stringified form of instruction count. */ | |
1672 | if (record_list && record_list->type == record_end) | |
1673 | ret = xstrdup (pulongest (record_list->u.end.insn_num)); | |
1674 | ||
1675 | if (record_debug) | |
1676 | { | |
1677 | if (ret) | |
1678 | fprintf_unfiltered (gdb_stdlog, | |
1679 | "record_get_bookmark returns %s\n", ret); | |
1680 | else | |
1681 | fprintf_unfiltered (gdb_stdlog, | |
1682 | "record_get_bookmark returns NULL\n"); | |
1683 | } | |
1684 | return ret; | |
1685 | } | |
1686 | ||
1687 | /* The implementation of the command "record goto". */ | |
1688 | static void cmd_record_goto (char *, int); | |
1689 | ||
1690 | /* "to_goto_bookmark" method for process record and prec over core. */ | |
1691 | ||
1692 | static void | |
1693 | record_goto_bookmark (gdb_byte *bookmark, int from_tty) | |
1694 | { | |
1695 | if (record_debug) | |
1696 | fprintf_unfiltered (gdb_stdlog, | |
1697 | "record_goto_bookmark receives %s\n", bookmark); | |
1698 | ||
1699 | if (bookmark[0] == '\'' || bookmark[0] == '\"') | |
1700 | { | |
1701 | if (bookmark[strlen (bookmark) - 1] != bookmark[0]) | |
1702 | error (_("Unbalanced quotes: %s"), bookmark); | |
1703 | ||
1704 | /* Strip trailing quote. */ | |
1705 | bookmark[strlen (bookmark) - 1] = '\0'; | |
1706 | /* Strip leading quote. */ | |
1707 | bookmark++; | |
1708 | /* Pass along to cmd_record_goto. */ | |
1709 | } | |
1710 | ||
1711 | cmd_record_goto ((char *) bookmark, from_tty); | |
1712 | return; | |
1713 | } | |
1714 | ||
69d05d38 HZ |
1715 | static void |
1716 | init_record_ops (void) | |
1717 | { | |
1718 | record_ops.to_shortname = "record"; | |
1719 | record_ops.to_longname = "Process record and replay target"; | |
1720 | record_ops.to_doc = | |
1721 | "Log program while executing and replay execution from log."; | |
1722 | record_ops.to_open = record_open; | |
1723 | record_ops.to_close = record_close; | |
1724 | record_ops.to_resume = record_resume; | |
1725 | record_ops.to_wait = record_wait; | |
1726 | record_ops.to_disconnect = record_disconnect; | |
1727 | record_ops.to_detach = record_detach; | |
1728 | record_ops.to_mourn_inferior = record_mourn_inferior; | |
1729 | record_ops.to_kill = record_kill; | |
1730 | record_ops.to_create_inferior = find_default_create_inferior; | |
1731 | record_ops.to_store_registers = record_store_registers; | |
1732 | record_ops.to_xfer_partial = record_xfer_partial; | |
1733 | record_ops.to_insert_breakpoint = record_insert_breakpoint; | |
1734 | record_ops.to_remove_breakpoint = record_remove_breakpoint; | |
9093389c | 1735 | record_ops.to_stopped_by_watchpoint = record_stopped_by_watchpoint; |
58ed7dcd | 1736 | record_ops.to_stopped_data_address = record_stopped_data_address; |
69d05d38 HZ |
1737 | record_ops.to_can_execute_reverse = record_can_execute_reverse; |
1738 | record_ops.to_stratum = record_stratum; | |
6b04bdb7 MS |
1739 | /* Add bookmark target methods. */ |
1740 | record_ops.to_get_bookmark = record_get_bookmark; | |
1741 | record_ops.to_goto_bookmark = record_goto_bookmark; | |
69d05d38 HZ |
1742 | record_ops.to_magic = OPS_MAGIC; |
1743 | } | |
1744 | ||
27699eea MS |
1745 | /* "to_resume" method for prec over corefile. */ |
1746 | ||
1747 | static void | |
1748 | record_core_resume (struct target_ops *ops, ptid_t ptid, int step, | |
1749 | enum target_signal signal) | |
1750 | { | |
1751 | record_resume_step = step; | |
1752 | } | |
1753 | ||
1754 | /* "to_kill" method for prec over corefile. */ | |
1755 | ||
1756 | static void | |
1757 | record_core_kill (struct target_ops *ops) | |
1758 | { | |
1759 | if (record_debug) | |
1760 | fprintf_unfiltered (gdb_stdlog, "Process record: record_core_kill\n"); | |
1761 | ||
1762 | unpush_target (&record_core_ops); | |
1763 | } | |
1764 | ||
1765 | /* "to_fetch_registers" method for prec over corefile. */ | |
1766 | ||
1767 | static void | |
1768 | record_core_fetch_registers (struct target_ops *ops, | |
1769 | struct regcache *regcache, | |
1770 | int regno) | |
1771 | { | |
1772 | if (regno < 0) | |
1773 | { | |
1774 | int num = gdbarch_num_regs (get_regcache_arch (regcache)); | |
1775 | int i; | |
1776 | ||
1777 | for (i = 0; i < num; i ++) | |
1778 | regcache_raw_supply (regcache, i, | |
1779 | record_core_regbuf + MAX_REGISTER_SIZE * i); | |
1780 | } | |
1781 | else | |
1782 | regcache_raw_supply (regcache, regno, | |
1783 | record_core_regbuf + MAX_REGISTER_SIZE * regno); | |
1784 | } | |
1785 | ||
1786 | /* "to_prepare_to_store" method for prec over corefile. */ | |
1787 | ||
1788 | static void | |
1789 | record_core_prepare_to_store (struct regcache *regcache) | |
1790 | { | |
1791 | } | |
1792 | ||
1793 | /* "to_store_registers" method for prec over corefile. */ | |
1794 | ||
1795 | static void | |
1796 | record_core_store_registers (struct target_ops *ops, | |
1797 | struct regcache *regcache, | |
1798 | int regno) | |
1799 | { | |
1800 | if (record_gdb_operation_disable) | |
1801 | regcache_raw_collect (regcache, regno, | |
1802 | record_core_regbuf + MAX_REGISTER_SIZE * regno); | |
1803 | else | |
1804 | error (_("You can't do that without a process to debug.")); | |
1805 | } | |
1806 | ||
1807 | /* "to_xfer_partial" method for prec over corefile. */ | |
1808 | ||
1809 | static LONGEST | |
1810 | record_core_xfer_partial (struct target_ops *ops, enum target_object object, | |
1811 | const char *annex, gdb_byte *readbuf, | |
1812 | const gdb_byte *writebuf, ULONGEST offset, | |
1813 | LONGEST len) | |
1814 | { | |
123f5f96 MS |
1815 | if (object == TARGET_OBJECT_MEMORY) |
1816 | { | |
1817 | if (record_gdb_operation_disable || !writebuf) | |
1818 | { | |
1819 | struct target_section *p; | |
1820 | ||
1821 | for (p = record_core_start; p < record_core_end; p++) | |
1822 | { | |
1823 | if (offset >= p->addr) | |
1824 | { | |
1825 | struct record_core_buf_entry *entry; | |
1826 | ULONGEST sec_offset; | |
1827 | ||
1828 | if (offset >= p->endaddr) | |
1829 | continue; | |
1830 | ||
1831 | if (offset + len > p->endaddr) | |
1832 | len = p->endaddr - offset; | |
1833 | ||
1834 | sec_offset = offset - p->addr; | |
1835 | ||
1836 | /* Read readbuf or write writebuf p, offset, len. */ | |
1837 | /* Check flags. */ | |
1838 | if (p->the_bfd_section->flags & SEC_CONSTRUCTOR | |
1839 | || (p->the_bfd_section->flags & SEC_HAS_CONTENTS) == 0) | |
1840 | { | |
1841 | if (readbuf) | |
1842 | memset (readbuf, 0, len); | |
1843 | return len; | |
1844 | } | |
1845 | /* Get record_core_buf_entry. */ | |
1846 | for (entry = record_core_buf_list; entry; | |
1847 | entry = entry->prev) | |
1848 | if (entry->p == p) | |
1849 | break; | |
1850 | if (writebuf) | |
1851 | { | |
1852 | if (!entry) | |
1853 | { | |
1854 | /* Add a new entry. */ | |
1855 | entry = (struct record_core_buf_entry *) | |
1856 | xmalloc (sizeof (struct record_core_buf_entry)); | |
1857 | entry->p = p; | |
1858 | if (!bfd_malloc_and_get_section (p->bfd, | |
1859 | p->the_bfd_section, | |
1860 | &entry->buf)) | |
1861 | { | |
1862 | xfree (entry); | |
1863 | return 0; | |
1864 | } | |
1865 | entry->prev = record_core_buf_list; | |
1866 | record_core_buf_list = entry; | |
1867 | } | |
1868 | ||
1869 | memcpy (entry->buf + sec_offset, writebuf, | |
1870 | (size_t) len); | |
1871 | } | |
1872 | else | |
1873 | { | |
1874 | if (!entry) | |
1875 | return record_beneath_to_xfer_partial | |
1876 | (record_beneath_to_xfer_partial_ops, | |
1877 | object, annex, readbuf, writebuf, | |
1878 | offset, len); | |
1879 | ||
1880 | memcpy (readbuf, entry->buf + sec_offset, | |
1881 | (size_t) len); | |
1882 | } | |
1883 | ||
1884 | return len; | |
1885 | } | |
1886 | } | |
1887 | ||
1888 | return -1; | |
1889 | } | |
1890 | else | |
1891 | error (_("You can't do that without a process to debug.")); | |
1892 | } | |
27699eea MS |
1893 | |
1894 | return record_beneath_to_xfer_partial (record_beneath_to_xfer_partial_ops, | |
1895 | object, annex, readbuf, writebuf, | |
1896 | offset, len); | |
1897 | } | |
1898 | ||
1899 | /* "to_insert_breakpoint" method for prec over corefile. */ | |
1900 | ||
1901 | static int | |
1902 | record_core_insert_breakpoint (struct gdbarch *gdbarch, | |
1903 | struct bp_target_info *bp_tgt) | |
1904 | { | |
1905 | return 0; | |
1906 | } | |
1907 | ||
1908 | /* "to_remove_breakpoint" method for prec over corefile. */ | |
1909 | ||
1910 | static int | |
1911 | record_core_remove_breakpoint (struct gdbarch *gdbarch, | |
1912 | struct bp_target_info *bp_tgt) | |
1913 | { | |
1914 | return 0; | |
1915 | } | |
1916 | ||
1917 | /* "to_has_execution" method for prec over corefile. */ | |
1918 | ||
1919 | int | |
1920 | record_core_has_execution (struct target_ops *ops) | |
1921 | { | |
1922 | return 1; | |
1923 | } | |
1924 | ||
1925 | static void | |
1926 | init_record_core_ops (void) | |
1927 | { | |
06280d23 | 1928 | record_core_ops.to_shortname = "record-core"; |
27699eea MS |
1929 | record_core_ops.to_longname = "Process record and replay target"; |
1930 | record_core_ops.to_doc = | |
1931 | "Log program while executing and replay execution from log."; | |
1932 | record_core_ops.to_open = record_open; | |
1933 | record_core_ops.to_close = record_close; | |
1934 | record_core_ops.to_resume = record_core_resume; | |
1935 | record_core_ops.to_wait = record_wait; | |
1936 | record_core_ops.to_kill = record_core_kill; | |
1937 | record_core_ops.to_fetch_registers = record_core_fetch_registers; | |
1938 | record_core_ops.to_prepare_to_store = record_core_prepare_to_store; | |
1939 | record_core_ops.to_store_registers = record_core_store_registers; | |
1940 | record_core_ops.to_xfer_partial = record_core_xfer_partial; | |
1941 | record_core_ops.to_insert_breakpoint = record_core_insert_breakpoint; | |
1942 | record_core_ops.to_remove_breakpoint = record_core_remove_breakpoint; | |
9093389c | 1943 | record_core_ops.to_stopped_by_watchpoint = record_stopped_by_watchpoint; |
58ed7dcd | 1944 | record_core_ops.to_stopped_data_address = record_stopped_data_address; |
27699eea MS |
1945 | record_core_ops.to_can_execute_reverse = record_can_execute_reverse; |
1946 | record_core_ops.to_has_execution = record_core_has_execution; | |
1947 | record_core_ops.to_stratum = record_stratum; | |
6b04bdb7 MS |
1948 | /* Add bookmark target methods. */ |
1949 | record_core_ops.to_get_bookmark = record_get_bookmark; | |
1950 | record_core_ops.to_goto_bookmark = record_goto_bookmark; | |
27699eea MS |
1951 | record_core_ops.to_magic = OPS_MAGIC; |
1952 | } | |
1953 | ||
6df67667 MS |
1954 | /* Implement "show record debug" command. */ |
1955 | ||
69d05d38 HZ |
1956 | static void |
1957 | show_record_debug (struct ui_file *file, int from_tty, | |
1958 | struct cmd_list_element *c, const char *value) | |
1959 | { | |
1960 | fprintf_filtered (file, _("Debugging of process record target is %s.\n"), | |
1961 | value); | |
1962 | } | |
1963 | ||
1964 | /* Alias for "target record". */ | |
1965 | ||
1966 | static void | |
1967 | cmd_record_start (char *args, int from_tty) | |
1968 | { | |
1969 | execute_command ("target record", from_tty); | |
1970 | } | |
1971 | ||
1972 | /* Truncate the record log from the present point | |
1973 | of replay until the end. */ | |
1974 | ||
1975 | static void | |
1976 | cmd_record_delete (char *args, int from_tty) | |
1977 | { | |
1978 | if (current_target.to_stratum == record_stratum) | |
1979 | { | |
1980 | if (RECORD_IS_REPLAY) | |
1981 | { | |
1982 | if (!from_tty || query (_("Delete the log from this point forward " | |
1983 | "and begin to record the running message " | |
1984 | "at current PC?"))) | |
61f75dd8 | 1985 | record_list_release_following (record_list); |
69d05d38 HZ |
1986 | } |
1987 | else | |
1988 | printf_unfiltered (_("Already at end of record list.\n")); | |
1989 | ||
1990 | } | |
1991 | else | |
1992 | printf_unfiltered (_("Process record is not started.\n")); | |
1993 | } | |
1994 | ||
6df67667 | 1995 | /* Implement the "stoprecord" or "record stop" command. */ |
69d05d38 HZ |
1996 | |
1997 | static void | |
1998 | cmd_record_stop (char *args, int from_tty) | |
1999 | { | |
2000 | if (current_target.to_stratum == record_stratum) | |
2001 | { | |
5d40bb85 | 2002 | unpush_target (&record_ops); |
b54295a7 MS |
2003 | printf_unfiltered (_("Process record is stopped and all execution " |
2004 | "logs are deleted.\n")); | |
69d05d38 HZ |
2005 | } |
2006 | else | |
2007 | printf_unfiltered (_("Process record is not started.\n")); | |
2008 | } | |
2009 | ||
2010 | /* Set upper limit of record log size. */ | |
2011 | ||
2012 | static void | |
2013 | set_record_insn_max_num (char *args, int from_tty, struct cmd_list_element *c) | |
2014 | { | |
2015 | if (record_insn_num > record_insn_max_num && record_insn_max_num) | |
2016 | { | |
265aad34 | 2017 | /* Count down record_insn_num while releasing records from list. */ |
69d05d38 | 2018 | while (record_insn_num > record_insn_max_num) |
265aad34 MS |
2019 | { |
2020 | record_list_release_first (); | |
2021 | record_insn_num--; | |
2022 | } | |
69d05d38 HZ |
2023 | } |
2024 | } | |
2025 | ||
69d05d38 HZ |
2026 | static struct cmd_list_element *record_cmdlist, *set_record_cmdlist, |
2027 | *show_record_cmdlist, *info_record_cmdlist; | |
2028 | ||
2029 | static void | |
2030 | set_record_command (char *args, int from_tty) | |
2031 | { | |
2032 | printf_unfiltered (_("\ | |
2033 | \"set record\" must be followed by an apporpriate subcommand.\n")); | |
2034 | help_list (set_record_cmdlist, "set record ", all_commands, gdb_stdout); | |
2035 | } | |
2036 | ||
2037 | static void | |
2038 | show_record_command (char *args, int from_tty) | |
2039 | { | |
2040 | cmd_show_list (show_record_cmdlist, from_tty, ""); | |
2041 | } | |
2042 | ||
b54295a7 MS |
2043 | /* Display some statistics about the execution log. */ |
2044 | ||
69d05d38 HZ |
2045 | static void |
2046 | info_record_command (char *args, int from_tty) | |
2047 | { | |
b54295a7 MS |
2048 | struct record_entry *p; |
2049 | ||
2050 | if (current_target.to_stratum == record_stratum) | |
2051 | { | |
2052 | if (RECORD_IS_REPLAY) | |
2053 | printf_filtered (_("Replay mode:\n")); | |
2054 | else | |
2055 | printf_filtered (_("Record mode:\n")); | |
2056 | ||
2057 | /* Find entry for first actual instruction in the log. */ | |
2058 | for (p = record_first.next; | |
2059 | p != NULL && p->type != record_end; | |
2060 | p = p->next) | |
2061 | ; | |
2062 | ||
2063 | /* Do we have a log at all? */ | |
2064 | if (p != NULL && p->type == record_end) | |
2065 | { | |
2066 | /* Display instruction number for first instruction in the log. */ | |
2067 | printf_filtered (_("Lowest recorded instruction number is %s.\n"), | |
2068 | pulongest (p->u.end.insn_num)); | |
2069 | ||
2070 | /* If in replay mode, display where we are in the log. */ | |
2071 | if (RECORD_IS_REPLAY) | |
2072 | printf_filtered (_("Current instruction number is %s.\n"), | |
2073 | pulongest (record_list->u.end.insn_num)); | |
2074 | ||
2075 | /* Display instruction number for last instruction in the log. */ | |
2076 | printf_filtered (_("Highest recorded instruction number is %s.\n"), | |
2077 | pulongest (record_insn_count)); | |
2078 | ||
2079 | /* Display log count. */ | |
2080 | printf_filtered (_("Log contains %d instructions.\n"), | |
2081 | record_insn_num); | |
2082 | } | |
2083 | else | |
2084 | { | |
2085 | printf_filtered (_("No instructions have been logged.\n")); | |
2086 | } | |
2087 | } | |
2088 | else | |
2089 | { | |
2090 | printf_filtered (_("target record is not active.\n")); | |
2091 | } | |
2092 | ||
2093 | /* Display max log size. */ | |
2094 | printf_filtered (_("Max logged instructions is %d.\n"), | |
2095 | record_insn_max_num); | |
69d05d38 HZ |
2096 | } |
2097 | ||
0156b218 MS |
2098 | /* Record log save-file format |
2099 | Version 1 (never released) | |
2100 | ||
2101 | Header: | |
2102 | 4 bytes: magic number htonl(0x20090829). | |
2103 | NOTE: be sure to change whenever this file format changes! | |
2104 | ||
2105 | Records: | |
2106 | record_end: | |
2107 | 1 byte: record type (record_end, see enum record_type). | |
2108 | record_reg: | |
2109 | 1 byte: record type (record_reg, see enum record_type). | |
2110 | 8 bytes: register id (network byte order). | |
2111 | MAX_REGISTER_SIZE bytes: register value. | |
2112 | record_mem: | |
2113 | 1 byte: record type (record_mem, see enum record_type). | |
2114 | 8 bytes: memory length (network byte order). | |
2115 | 8 bytes: memory address (network byte order). | |
2116 | n bytes: memory value (n == memory length). | |
2117 | ||
2118 | Version 2 | |
2119 | 4 bytes: magic number netorder32(0x20091016). | |
2120 | NOTE: be sure to change whenever this file format changes! | |
2121 | ||
2122 | Records: | |
2123 | record_end: | |
2124 | 1 byte: record type (record_end, see enum record_type). | |
2125 | 4 bytes: signal | |
2126 | 4 bytes: instruction count | |
2127 | record_reg: | |
2128 | 1 byte: record type (record_reg, see enum record_type). | |
2129 | 4 bytes: register id (network byte order). | |
2130 | n bytes: register value (n == actual register size). | |
2131 | (eg. 4 bytes for x86 general registers). | |
2132 | record_mem: | |
2133 | 1 byte: record type (record_mem, see enum record_type). | |
2134 | 4 bytes: memory length (network byte order). | |
2135 | 8 bytes: memory address (network byte order). | |
2136 | n bytes: memory value (n == memory length). | |
2137 | ||
2138 | */ | |
2139 | ||
2140 | /* bfdcore_read -- read bytes from a core file section. */ | |
2141 | ||
2142 | static inline void | |
2143 | bfdcore_read (bfd *obfd, asection *osec, void *buf, int len, int *offset) | |
2144 | { | |
2145 | int ret = bfd_get_section_contents (obfd, osec, buf, *offset, len); | |
2146 | ||
2147 | if (ret) | |
2148 | *offset += len; | |
2149 | else | |
2150 | error (_("Failed to read %d bytes from core file %s ('%s').\n"), | |
2151 | len, bfd_get_filename (obfd), | |
2152 | bfd_errmsg (bfd_get_error ())); | |
2153 | } | |
2154 | ||
2155 | static inline uint64_t | |
6aa96d03 | 2156 | netorder64 (uint64_t input) |
0156b218 | 2157 | { |
6aa96d03 MS |
2158 | uint64_t ret; |
2159 | ||
2160 | store_unsigned_integer ((gdb_byte *) &ret, sizeof (ret), | |
2161 | BFD_ENDIAN_BIG, input); | |
2162 | return ret; | |
0156b218 MS |
2163 | } |
2164 | ||
2165 | static inline uint32_t | |
6aa96d03 | 2166 | netorder32 (uint32_t input) |
0156b218 | 2167 | { |
6aa96d03 MS |
2168 | uint32_t ret; |
2169 | ||
2170 | store_unsigned_integer ((gdb_byte *) &ret, sizeof (ret), | |
2171 | BFD_ENDIAN_BIG, input); | |
2172 | return ret; | |
0156b218 MS |
2173 | } |
2174 | ||
2175 | static inline uint16_t | |
6aa96d03 | 2176 | netorder16 (uint16_t input) |
0156b218 | 2177 | { |
6aa96d03 MS |
2178 | uint16_t ret; |
2179 | ||
2180 | store_unsigned_integer ((gdb_byte *) &ret, sizeof (ret), | |
2181 | BFD_ENDIAN_BIG, input); | |
2182 | return ret; | |
0156b218 MS |
2183 | } |
2184 | ||
2185 | /* Restore the execution log from a core_bfd file. */ | |
2186 | static void | |
2187 | record_restore (void) | |
2188 | { | |
2189 | uint32_t magic; | |
2190 | struct cleanup *old_cleanups; | |
2191 | struct record_entry *rec; | |
2192 | asection *osec; | |
2193 | uint32_t osec_size; | |
2194 | int bfd_offset = 0; | |
2195 | struct regcache *regcache; | |
2196 | ||
2197 | /* We restore the execution log from the open core bfd, | |
2198 | if there is one. */ | |
2199 | if (core_bfd == NULL) | |
2200 | return; | |
2201 | ||
2202 | /* "record_restore" can only be called when record list is empty. */ | |
2203 | gdb_assert (record_first.next == NULL); | |
2204 | ||
2205 | if (record_debug) | |
07b7cff3 | 2206 | fprintf_unfiltered (gdb_stdlog, "Restoring recording from core file.\n"); |
0156b218 MS |
2207 | |
2208 | /* Now need to find our special note section. */ | |
2209 | osec = bfd_get_section_by_name (core_bfd, "null0"); | |
2210 | osec_size = bfd_section_size (core_bfd, osec); | |
2211 | if (record_debug) | |
07b7cff3 PA |
2212 | fprintf_unfiltered (gdb_stdlog, "Find precord section %s.\n", |
2213 | osec ? "succeeded" : "failed"); | |
2214 | if (osec == NULL) | |
0156b218 MS |
2215 | return; |
2216 | if (record_debug) | |
07b7cff3 | 2217 | fprintf_unfiltered (gdb_stdlog, "%s", bfd_section_name (core_bfd, osec)); |
0156b218 MS |
2218 | |
2219 | /* Check the magic code. */ | |
2220 | bfdcore_read (core_bfd, osec, &magic, sizeof (magic), &bfd_offset); | |
2221 | if (magic != RECORD_FILE_MAGIC) | |
2222 | error (_("Version mis-match or file format error in core file %s."), | |
2223 | bfd_get_filename (core_bfd)); | |
2224 | if (record_debug) | |
07b7cff3 | 2225 | fprintf_unfiltered (gdb_stdlog, "\ |
1de1372d | 2226 | Reading 4-byte magic cookie RECORD_FILE_MAGIC (0x%s)\n", |
07b7cff3 | 2227 | phex_nz (netorder32 (magic), 4)); |
0156b218 MS |
2228 | |
2229 | /* Restore the entries in recfd into record_arch_list_head and | |
2230 | record_arch_list_tail. */ | |
2231 | record_arch_list_head = NULL; | |
2232 | record_arch_list_tail = NULL; | |
2233 | record_insn_num = 0; | |
2234 | old_cleanups = make_cleanup (record_arch_list_cleanups, 0); | |
2235 | regcache = get_current_regcache (); | |
2236 | ||
2237 | while (1) | |
2238 | { | |
ec6dbf37 | 2239 | uint8_t rectype; |
0156b218 MS |
2240 | uint32_t regnum, len, signal, count; |
2241 | uint64_t addr; | |
2242 | ||
2243 | /* We are finished when offset reaches osec_size. */ | |
2244 | if (bfd_offset >= osec_size) | |
2245 | break; | |
ec6dbf37 | 2246 | bfdcore_read (core_bfd, osec, &rectype, sizeof (rectype), &bfd_offset); |
0156b218 | 2247 | |
ec6dbf37 | 2248 | switch (rectype) |
0156b218 MS |
2249 | { |
2250 | case record_reg: /* reg */ | |
2251 | /* Get register number to regnum. */ | |
2252 | bfdcore_read (core_bfd, osec, ®num, | |
2253 | sizeof (regnum), &bfd_offset); | |
2254 | regnum = netorder32 (regnum); | |
2255 | ||
2256 | rec = record_reg_alloc (regcache, regnum); | |
2257 | ||
2258 | /* Get val. */ | |
2259 | bfdcore_read (core_bfd, osec, record_get_loc (rec), | |
2260 | rec->u.reg.len, &bfd_offset); | |
2261 | ||
07b7cff3 PA |
2262 | if (record_debug) |
2263 | fprintf_unfiltered (gdb_stdlog, "\ | |
99ff666f | 2264 | Reading register %d (1 plus %lu plus %d bytes)\n", |
07b7cff3 PA |
2265 | rec->u.reg.num, |
2266 | (unsigned long) sizeof (regnum), | |
2267 | rec->u.reg.len); | |
0156b218 MS |
2268 | break; |
2269 | ||
2270 | case record_mem: /* mem */ | |
2271 | /* Get len. */ | |
2272 | bfdcore_read (core_bfd, osec, &len, | |
2273 | sizeof (len), &bfd_offset); | |
2274 | len = netorder32 (len); | |
2275 | ||
2276 | /* Get addr. */ | |
2277 | bfdcore_read (core_bfd, osec, &addr, | |
2278 | sizeof (addr), &bfd_offset); | |
2279 | addr = netorder64 (addr); | |
2280 | ||
2281 | rec = record_mem_alloc (addr, len); | |
2282 | ||
2283 | /* Get val. */ | |
2284 | bfdcore_read (core_bfd, osec, record_get_loc (rec), | |
2285 | rec->u.mem.len, &bfd_offset); | |
2286 | ||
07b7cff3 PA |
2287 | if (record_debug) |
2288 | fprintf_unfiltered (gdb_stdlog, "\ | |
99ff666f | 2289 | Reading memory %s (1 plus %lu plus %lu plus %d bytes)\n", |
07b7cff3 PA |
2290 | paddress (get_current_arch (), |
2291 | rec->u.mem.addr), | |
2292 | (unsigned long) sizeof (addr), | |
2293 | (unsigned long) sizeof (len), | |
2294 | rec->u.mem.len); | |
0156b218 MS |
2295 | break; |
2296 | ||
2297 | case record_end: /* end */ | |
2298 | rec = record_end_alloc (); | |
2299 | record_insn_num ++; | |
2300 | ||
2301 | /* Get signal value. */ | |
2302 | bfdcore_read (core_bfd, osec, &signal, | |
2303 | sizeof (signal), &bfd_offset); | |
2304 | signal = netorder32 (signal); | |
2305 | rec->u.end.sigval = signal; | |
2306 | ||
2307 | /* Get insn count. */ | |
2308 | bfdcore_read (core_bfd, osec, &count, | |
2309 | sizeof (count), &bfd_offset); | |
2310 | count = netorder32 (count); | |
2311 | rec->u.end.insn_num = count; | |
2312 | record_insn_count = count + 1; | |
07b7cff3 PA |
2313 | if (record_debug) |
2314 | fprintf_unfiltered (gdb_stdlog, "\ | |
99ff666f | 2315 | Reading record_end (1 + %lu + %lu bytes), offset == %s\n", |
07b7cff3 PA |
2316 | (unsigned long) sizeof (signal), |
2317 | (unsigned long) sizeof (count), | |
2318 | paddress (get_current_arch (), | |
2319 | bfd_offset)); | |
0156b218 MS |
2320 | break; |
2321 | ||
2322 | default: | |
2323 | error (_("Bad entry type in core file %s."), | |
2324 | bfd_get_filename (core_bfd)); | |
2325 | break; | |
2326 | } | |
2327 | ||
2328 | /* Add rec to record arch list. */ | |
2329 | record_arch_list_add (rec); | |
2330 | } | |
2331 | ||
2332 | discard_cleanups (old_cleanups); | |
2333 | ||
2334 | /* Add record_arch_list_head to the end of record list. */ | |
2335 | record_first.next = record_arch_list_head; | |
2336 | record_arch_list_head->prev = &record_first; | |
2337 | record_arch_list_tail->next = NULL; | |
2338 | record_list = &record_first; | |
2339 | ||
2340 | /* Update record_insn_max_num. */ | |
2341 | if (record_insn_num > record_insn_max_num) | |
2342 | { | |
2343 | record_insn_max_num = record_insn_num; | |
2344 | warning (_("Auto increase record/replay buffer limit to %d."), | |
2345 | record_insn_max_num); | |
2346 | } | |
2347 | ||
2348 | /* Succeeded. */ | |
2349 | printf_filtered (_("Restored records from core file %s.\n"), | |
2350 | bfd_get_filename (core_bfd)); | |
2351 | ||
2352 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
2353 | } | |
2354 | ||
2355 | /* bfdcore_write -- write bytes into a core file section. */ | |
2356 | ||
2357 | static inline void | |
2358 | bfdcore_write (bfd *obfd, asection *osec, void *buf, int len, int *offset) | |
2359 | { | |
2360 | int ret = bfd_set_section_contents (obfd, osec, buf, *offset, len); | |
2361 | ||
2362 | if (ret) | |
2363 | *offset += len; | |
2364 | else | |
2365 | error (_("Failed to write %d bytes to core file %s ('%s').\n"), | |
2366 | len, bfd_get_filename (obfd), | |
2367 | bfd_errmsg (bfd_get_error ())); | |
2368 | } | |
2369 | ||
2370 | /* Restore the execution log from a file. We use a modified elf | |
2371 | corefile format, with an extra section for our data. */ | |
2372 | ||
2373 | static void | |
2374 | cmd_record_restore (char *args, int from_tty) | |
2375 | { | |
2376 | core_file_command (args, from_tty); | |
2377 | record_open (args, from_tty); | |
2378 | } | |
2379 | ||
2380 | static void | |
2381 | record_save_cleanups (void *data) | |
2382 | { | |
2383 | bfd *obfd = data; | |
2384 | char *pathname = xstrdup (bfd_get_filename (obfd)); | |
123f5f96 | 2385 | |
0156b218 MS |
2386 | bfd_close (obfd); |
2387 | unlink (pathname); | |
2388 | xfree (pathname); | |
2389 | } | |
2390 | ||
2391 | /* Save the execution log to a file. We use a modified elf corefile | |
2392 | format, with an extra section for our data. */ | |
2393 | ||
2394 | static void | |
2395 | cmd_record_save (char *args, int from_tty) | |
2396 | { | |
2397 | char *recfilename, recfilename_buffer[40]; | |
0156b218 MS |
2398 | struct record_entry *cur_record_list; |
2399 | uint32_t magic; | |
2400 | struct regcache *regcache; | |
2401 | struct gdbarch *gdbarch; | |
2402 | struct cleanup *old_cleanups; | |
2403 | struct cleanup *set_cleanups; | |
2404 | bfd *obfd; | |
2405 | int save_size = 0; | |
2406 | asection *osec = NULL; | |
2407 | int bfd_offset = 0; | |
2408 | ||
2409 | if (strcmp (current_target.to_shortname, "record") != 0) | |
2410 | error (_("This command can only be used with target 'record'.\n" | |
2411 | "Use 'target record' first.\n")); | |
2412 | ||
2413 | if (args && *args) | |
2414 | recfilename = args; | |
2415 | else | |
2416 | { | |
2417 | /* Default recfile name is "gdb_record.PID". */ | |
2418 | snprintf (recfilename_buffer, sizeof (recfilename_buffer), | |
2419 | "gdb_record.%d", PIDGET (inferior_ptid)); | |
2420 | recfilename = recfilename_buffer; | |
2421 | } | |
2422 | ||
2423 | /* Open the save file. */ | |
2424 | if (record_debug) | |
07b7cff3 PA |
2425 | fprintf_unfiltered (gdb_stdlog, "Saving execution log to core file '%s'\n", |
2426 | recfilename); | |
0156b218 MS |
2427 | |
2428 | /* Open the output file. */ | |
2429 | obfd = create_gcore_bfd (recfilename); | |
2430 | old_cleanups = make_cleanup (record_save_cleanups, obfd); | |
2431 | ||
2432 | /* Save the current record entry to "cur_record_list". */ | |
2433 | cur_record_list = record_list; | |
2434 | ||
2435 | /* Get the values of regcache and gdbarch. */ | |
2436 | regcache = get_current_regcache (); | |
2437 | gdbarch = get_regcache_arch (regcache); | |
2438 | ||
2439 | /* Disable the GDB operation record. */ | |
2440 | set_cleanups = record_gdb_operation_disable_set (); | |
2441 | ||
2442 | /* Reverse execute to the begin of record list. */ | |
2443 | while (1) | |
2444 | { | |
2445 | /* Check for beginning and end of log. */ | |
2446 | if (record_list == &record_first) | |
2447 | break; | |
2448 | ||
2449 | record_exec_insn (regcache, gdbarch, record_list); | |
2450 | ||
2451 | if (record_list->prev) | |
2452 | record_list = record_list->prev; | |
2453 | } | |
2454 | ||
2455 | /* Compute the size needed for the extra bfd section. */ | |
2456 | save_size = 4; /* magic cookie */ | |
2457 | for (record_list = record_first.next; record_list; | |
2458 | record_list = record_list->next) | |
2459 | switch (record_list->type) | |
2460 | { | |
2461 | case record_end: | |
2462 | save_size += 1 + 4 + 4; | |
2463 | break; | |
2464 | case record_reg: | |
2465 | save_size += 1 + 4 + record_list->u.reg.len; | |
2466 | break; | |
2467 | case record_mem: | |
2468 | save_size += 1 + 4 + 8 + record_list->u.mem.len; | |
2469 | break; | |
2470 | } | |
2471 | ||
2472 | /* Make the new bfd section. */ | |
2473 | osec = bfd_make_section_anyway_with_flags (obfd, "precord", | |
2474 | SEC_HAS_CONTENTS | |
2475 | | SEC_READONLY); | |
2476 | if (osec == NULL) | |
2477 | error (_("Failed to create 'precord' section for corefile %s: %s"), | |
2478 | recfilename, | |
2479 | bfd_errmsg (bfd_get_error ())); | |
2480 | bfd_set_section_size (obfd, osec, save_size); | |
2481 | bfd_set_section_vma (obfd, osec, 0); | |
2482 | bfd_set_section_alignment (obfd, osec, 0); | |
2483 | bfd_section_lma (obfd, osec) = 0; | |
2484 | ||
2485 | /* Save corefile state. */ | |
2486 | write_gcore_file (obfd); | |
2487 | ||
2488 | /* Write out the record log. */ | |
2489 | /* Write the magic code. */ | |
2490 | magic = RECORD_FILE_MAGIC; | |
2491 | if (record_debug) | |
07b7cff3 | 2492 | fprintf_unfiltered (gdb_stdlog, "\ |
1de1372d | 2493 | Writing 4-byte magic cookie RECORD_FILE_MAGIC (0x%s)\n", |
07b7cff3 | 2494 | phex_nz (magic, 4)); |
0156b218 MS |
2495 | bfdcore_write (obfd, osec, &magic, sizeof (magic), &bfd_offset); |
2496 | ||
2497 | /* Save the entries to recfd and forward execute to the end of | |
2498 | record list. */ | |
2499 | record_list = &record_first; | |
2500 | while (1) | |
2501 | { | |
2502 | /* Save entry. */ | |
2503 | if (record_list != &record_first) | |
2504 | { | |
2505 | uint8_t type; | |
2506 | uint32_t regnum, len, signal, count; | |
2507 | uint64_t addr; | |
2508 | ||
2509 | type = record_list->type; | |
2510 | bfdcore_write (obfd, osec, &type, sizeof (type), &bfd_offset); | |
2511 | ||
2512 | switch (record_list->type) | |
2513 | { | |
2514 | case record_reg: /* reg */ | |
07b7cff3 PA |
2515 | if (record_debug) |
2516 | fprintf_unfiltered (gdb_stdlog, "\ | |
99ff666f | 2517 | Writing register %d (1 plus %lu plus %d bytes)\n", |
07b7cff3 PA |
2518 | record_list->u.reg.num, |
2519 | (unsigned long) sizeof (regnum), | |
2520 | record_list->u.reg.len); | |
0156b218 MS |
2521 | |
2522 | /* Write regnum. */ | |
2523 | regnum = netorder32 (record_list->u.reg.num); | |
2524 | bfdcore_write (obfd, osec, ®num, | |
2525 | sizeof (regnum), &bfd_offset); | |
2526 | ||
2527 | /* Write regval. */ | |
2528 | bfdcore_write (obfd, osec, record_get_loc (record_list), | |
2529 | record_list->u.reg.len, &bfd_offset); | |
2530 | break; | |
2531 | ||
2532 | case record_mem: /* mem */ | |
2533 | if (record_debug) | |
07b7cff3 | 2534 | fprintf_unfiltered (gdb_stdlog, "\ |
99ff666f | 2535 | Writing memory %s (1 plus %lu plus %lu plus %d bytes)\n", |
07b7cff3 PA |
2536 | paddress (gdbarch, |
2537 | record_list->u.mem.addr), | |
2538 | (unsigned long) sizeof (addr), | |
2539 | (unsigned long) sizeof (len), | |
2540 | record_list->u.mem.len); | |
0156b218 MS |
2541 | |
2542 | /* Write memlen. */ | |
2543 | len = netorder32 (record_list->u.mem.len); | |
2544 | bfdcore_write (obfd, osec, &len, sizeof (len), &bfd_offset); | |
2545 | ||
2546 | /* Write memaddr. */ | |
2547 | addr = netorder64 (record_list->u.mem.addr); | |
2548 | bfdcore_write (obfd, osec, &addr, | |
2549 | sizeof (addr), &bfd_offset); | |
2550 | ||
2551 | /* Write memval. */ | |
2552 | bfdcore_write (obfd, osec, record_get_loc (record_list), | |
2553 | record_list->u.mem.len, &bfd_offset); | |
2554 | break; | |
2555 | ||
2556 | case record_end: | |
07b7cff3 PA |
2557 | if (record_debug) |
2558 | fprintf_unfiltered (gdb_stdlog, "\ | |
99ff666f | 2559 | Writing record_end (1 + %lu + %lu bytes)\n", |
07b7cff3 PA |
2560 | (unsigned long) sizeof (signal), |
2561 | (unsigned long) sizeof (count)); | |
0156b218 MS |
2562 | /* Write signal value. */ |
2563 | signal = netorder32 (record_list->u.end.sigval); | |
2564 | bfdcore_write (obfd, osec, &signal, | |
2565 | sizeof (signal), &bfd_offset); | |
2566 | ||
2567 | /* Write insn count. */ | |
2568 | count = netorder32 (record_list->u.end.insn_num); | |
2569 | bfdcore_write (obfd, osec, &count, | |
2570 | sizeof (count), &bfd_offset); | |
2571 | break; | |
2572 | } | |
2573 | } | |
2574 | ||
2575 | /* Execute entry. */ | |
2576 | record_exec_insn (regcache, gdbarch, record_list); | |
2577 | ||
2578 | if (record_list->next) | |
2579 | record_list = record_list->next; | |
2580 | else | |
2581 | break; | |
2582 | } | |
2583 | ||
2584 | /* Reverse execute to cur_record_list. */ | |
2585 | while (1) | |
2586 | { | |
2587 | /* Check for beginning and end of log. */ | |
2588 | if (record_list == cur_record_list) | |
2589 | break; | |
2590 | ||
2591 | record_exec_insn (regcache, gdbarch, record_list); | |
2592 | ||
2593 | if (record_list->prev) | |
2594 | record_list = record_list->prev; | |
2595 | } | |
2596 | ||
2597 | do_cleanups (set_cleanups); | |
2598 | bfd_close (obfd); | |
2599 | discard_cleanups (old_cleanups); | |
2600 | ||
2601 | /* Succeeded. */ | |
2602 | printf_filtered (_("Saved core file %s with execution log.\n"), | |
2603 | recfilename); | |
2604 | } | |
2605 | ||
a480d2f6 HZ |
2606 | /* For "record pic" command. */ |
2607 | ||
2608 | static struct cmd_list_element *set_record_pic_cmdlist, | |
2609 | *show_record_pic_cmdlist; | |
2610 | ||
2611 | static void | |
2612 | set_record_pic_command (char *args, int from_tty) | |
2613 | { | |
2614 | printf_unfiltered (_("\ | |
2615 | \"set record pic\" must be followed by an apporpriate subcommand.\n")); | |
2616 | help_list (set_record_cmdlist, "set record pic ", all_commands, gdb_stdout); | |
2617 | } | |
2618 | ||
2619 | static void | |
2620 | show_record_pic_command (char *args, int from_tty) | |
2621 | { | |
2622 | cmd_show_list (show_record_pic_cmdlist, from_tty, ""); | |
2623 | } | |
2624 | ||
2625 | static const char record_pic_function[] = "function"; | |
2626 | static const char record_pic_line[] = "line"; | |
2627 | static const char *record_pic_enum[] = | |
2628 | { | |
2629 | record_pic_function, | |
2630 | record_pic_line, | |
2631 | NULL, | |
2632 | }; | |
2633 | static const char *set_record_pic_type = record_pic_line; | |
2634 | ||
2635 | static int record_pic_hide_nofunction = 1; | |
2636 | static int record_pic_hide_nosource = 1; | |
2637 | static int record_pic_hide_same = 1; | |
2638 | ||
2639 | static void | |
2640 | record_pic_fputs (FILE *fp, const char *buf) | |
2641 | { | |
2642 | if (fputs (buf, fp) == EOF) | |
2643 | error (_("Write to file error.")); | |
2644 | } | |
2645 | ||
2646 | struct function_list | |
2647 | { | |
2648 | struct function_list *next; | |
2649 | CORE_ADDR addr; | |
2650 | int fid; | |
2651 | }; | |
2652 | struct node_list | |
2653 | { | |
2654 | struct node_list *next; | |
2655 | int count; | |
2656 | CORE_ADDR addr; | |
2657 | int showall; | |
2658 | struct symtab *symtab; | |
2659 | int line; | |
2660 | struct minimal_symbol *function; | |
2661 | int fid; | |
2662 | }; | |
2663 | struct edge_list | |
2664 | { | |
2665 | struct edge_list *next; | |
2666 | int count; | |
2667 | struct node_list *s; | |
2668 | struct node_list *t; | |
2669 | int frame_diff; | |
2670 | int is_return; | |
2671 | }; | |
2672 | struct function_list *function_list = NULL; | |
2673 | struct node_list *node_list = NULL; | |
2674 | struct edge_list *edge_list = NULL; | |
2675 | ||
2676 | static void | |
2677 | record_pic_cleanups (void *data) | |
2678 | { | |
2679 | FILE *fp = data; | |
2680 | struct function_list *fl, *fl2; | |
2681 | struct node_list *nl, *nl2; | |
2682 | struct edge_list *el, *el2; | |
2683 | ||
2684 | fl = function_list; | |
2685 | while (fl) | |
2686 | { | |
2687 | fl2 = fl; | |
2688 | fl = fl->next; | |
2689 | xfree (fl2); | |
2690 | } | |
2691 | function_list = NULL; | |
2692 | ||
2693 | nl = node_list; | |
2694 | while (nl) | |
2695 | { | |
2696 | nl2 = nl; | |
2697 | nl = nl->next; | |
2698 | xfree (nl2); | |
2699 | } | |
2700 | node_list = NULL; | |
2701 | ||
2702 | el = edge_list; | |
2703 | while (el) | |
2704 | { | |
2705 | el2 = el; | |
2706 | el = el->next; | |
2707 | xfree (el2); | |
2708 | } | |
2709 | edge_list = NULL; | |
2710 | ||
2711 | fclose (fp); | |
2712 | } | |
2713 | ||
2714 | static void | |
2715 | record_pic_node (char *buf, int buf_max, struct gdbarch *gdbarch, | |
2716 | const char *type, struct node_list *nlp) | |
2717 | { | |
2718 | if (type == record_pic_function) | |
2719 | { | |
2720 | snprintf (buf, buf_max, "%s %s %s", | |
2721 | (nlp->symtab) ? nlp->symtab->filename : "", | |
2722 | (nlp->function) ? SYMBOL_LINKAGE_NAME (nlp->function) : "", | |
2723 | (!nlp->function) ? paddress (gdbarch, nlp->addr) : ""); | |
2724 | } | |
2725 | else | |
2726 | { | |
2727 | if (nlp->showall) | |
2728 | { | |
2729 | snprintf (buf, buf_max, "%s:%d %s %s", nlp->symtab->filename, | |
2730 | nlp->line, | |
2731 | (nlp->function) ? SYMBOL_LINKAGE_NAME (nlp->function) : "", | |
2732 | paddress (gdbarch, nlp->addr)); | |
2733 | } | |
2734 | else | |
2735 | { | |
2736 | if (nlp->symtab) | |
2737 | snprintf (buf, buf_max, "%s %d %s", | |
2738 | (nlp->function) ? SYMBOL_LINKAGE_NAME (nlp->function) : "", | |
2739 | nlp->line, paddress (gdbarch, nlp->addr)); | |
2740 | else | |
2741 | snprintf (buf, buf_max, "%s %s", | |
2742 | (nlp->function) ? SYMBOL_LINKAGE_NAME (nlp->function) : "", | |
2743 | paddress (gdbarch, nlp->addr)); | |
2744 | } | |
2745 | } | |
2746 | } | |
2747 | ||
2748 | static void | |
2749 | record_pic_edge (char *buf, int buf_max, struct edge_list *elp, | |
2750 | char *node, char *prev_node) | |
2751 | { | |
2752 | if (elp->frame_diff) | |
2753 | { | |
2754 | if (elp->is_return) | |
2755 | snprintf (buf, buf_max, "edge: {color:blue sourcename: \"%s\" " | |
2756 | "targetname: \"%s\"", | |
2757 | prev_node, node); | |
2758 | else | |
2759 | snprintf (buf, buf_max, "edge: {color:red sourcename: \"%s\" " | |
2760 | "targetname: \"%s\"", | |
2761 | prev_node, node); | |
2762 | } | |
2763 | else | |
2764 | snprintf (buf, buf_max, | |
2765 | "edge: {sourcename: \"%s\" targetname: \"%s\"", | |
2766 | prev_node, node); | |
2767 | } | |
2768 | ||
2769 | /* Save the execution log to a vcg file. */ | |
2770 | ||
2771 | static void | |
2772 | cmd_record_pic (char *args, int from_tty) | |
2773 | { | |
2774 | char *recfilename, recfilename_buffer[40]; | |
2775 | FILE *fp; | |
2776 | struct cleanup *old_cleanups, *set_cleanups; | |
2777 | struct regcache *regcache; | |
2778 | struct gdbarch *gdbarch; | |
2779 | struct record_entry *cur_record_list; | |
2780 | char prev_node[256], line[256]; | |
2781 | CORE_ADDR prev_addr; | |
2782 | struct frame_id fi, caller_fi, prev_fi, prev_caller_fi; | |
2783 | struct function_list *function_list_tail, *function_list_prev; | |
2784 | struct edge_list *edge_list_tail = NULL; | |
2785 | struct node_list *node_list_tail = NULL; | |
2786 | struct symtab_and_line sal, prev_sal; | |
2787 | struct node_list *prev_nlp; | |
2788 | struct node_list prev_nlp_real; | |
2789 | int fid_count = 1; | |
2790 | ||
2791 | /* Check if record target is running. */ | |
2792 | if (current_target.to_stratum != record_stratum) | |
2793 | error (_("This command can only be used with target 'record' \ | |
2794 | or target 'record-core'.")); | |
2795 | ||
2796 | if (args && *args) | |
2797 | recfilename = args; | |
2798 | else | |
2799 | { | |
2800 | /* Default recfile name is "gdb_record_PID.vcg". */ | |
2801 | snprintf (recfilename_buffer, sizeof (recfilename_buffer), | |
2802 | "gdb_record_%d.vcg", PIDGET (inferior_ptid)); | |
2803 | recfilename = recfilename_buffer; | |
2804 | } | |
2805 | ||
2806 | /* Open the output file. */ | |
2807 | fp = fopen (recfilename, "wb"); | |
2808 | if (!fp) | |
2809 | error (_("Unable to open file '%s'"), recfilename); | |
2810 | ||
2811 | old_cleanups = make_cleanup (record_pic_cleanups, fp); | |
2812 | ||
2813 | /* Save the current record entry to "cur_record_list". */ | |
2814 | cur_record_list = record_list; | |
2815 | ||
2816 | /* Get the values of regcache and gdbarch. */ | |
2817 | regcache = get_current_regcache (); | |
2818 | gdbarch = get_regcache_arch (regcache); | |
2819 | ||
2820 | /* Disable the GDB operation record. */ | |
2821 | set_cleanups = record_gdb_operation_disable_set (); | |
2822 | ||
2823 | /* Reverse execute to the begin of record list. */ | |
2824 | while (1) | |
2825 | { | |
2826 | /* Check for beginning and end of log. */ | |
2827 | if (record_list == &record_first) | |
2828 | break; | |
2829 | ||
2830 | record_exec_insn (regcache, gdbarch, record_list); | |
2831 | ||
2832 | if (record_list->prev) | |
2833 | record_list = record_list->prev; | |
2834 | } | |
2835 | ||
2836 | /* Write out the record log. */ | |
2837 | /* Write the head. */ | |
2838 | record_pic_fputs (fp, "graph: {title: \"GDB process record\"\n"); | |
2839 | ||
2840 | /* Write the first node. */ | |
2841 | record_pic_fputs (fp, "node: {title: \"[BEGIN]\" vertical_order:0}\n"); | |
2842 | ||
2843 | /* Initialization. */ | |
2844 | snprintf (prev_node, 256, "[BEGIN]"); | |
2845 | prev_fi = null_frame_id; | |
2846 | prev_caller_fi = null_frame_id; | |
2847 | prev_addr = 0; | |
2848 | prev_sal.symtab = NULL; | |
2849 | prev_sal.pc = 0; | |
2850 | prev_sal.end = 0; | |
2851 | prev_nlp_real.addr = 0; | |
2852 | prev_nlp = &prev_nlp_real; | |
2853 | ||
2854 | /* Create first entry for function_list. */ | |
2855 | function_list = xmalloc (sizeof (struct function_list)); | |
2856 | function_list->next = NULL; | |
2857 | function_list->addr = 0; | |
2858 | function_list->fid = -1; | |
2859 | function_list_tail = function_list; | |
2860 | function_list_prev = function_list; | |
2861 | ||
2862 | /* Save the entries to fp and forward execute to the end of | |
2863 | record list. */ | |
2864 | record_list = &record_first; | |
2865 | while (1) | |
2866 | { | |
2867 | if (record_list->type == record_end) | |
2868 | { | |
2869 | int frame_diff = 0; | |
2870 | CORE_ADDR addr = regcache_read_pc (regcache); | |
2871 | ||
2872 | /* Check if the ADDR is stil in the same line with the | |
2873 | prev cycle. */ | |
2874 | if (prev_sal.symtab | |
2875 | && addr >= prev_sal.pc && addr < prev_sal.end) | |
2876 | goto exec; | |
2877 | sal = find_pc_line (addr, 0); | |
2878 | ||
2879 | if (record_pic_hide_nosource && !sal.symtab) | |
2880 | goto exec; | |
2881 | ||
2882 | /* Check if the inferior is in same frame with prev cycle. | |
2883 | Check both the current fi and caller fi because the last | |
2884 | addr of function is different with current function. */ | |
2885 | reinit_frame_cache (); | |
2886 | fi = get_frame_id (get_current_frame ()); | |
2887 | caller_fi = frame_unwind_caller_id (get_current_frame ()); | |
2888 | if (!frame_id_eq (prev_fi, fi) | |
2889 | && !frame_id_eq (prev_caller_fi, caller_fi)) | |
2890 | frame_diff = 1; | |
2891 | ||
2892 | if (set_record_pic_type == record_pic_line || frame_diff) | |
2893 | { | |
2894 | int is_return = 0; | |
2895 | struct node_list *nlp = NULL; | |
2896 | struct edge_list *elp = NULL; | |
2897 | char node[256]; | |
2898 | struct minimal_symbol *function; | |
2899 | ||
2900 | /* Get the node addr. */ | |
2901 | if (set_record_pic_type == record_pic_function) | |
2902 | { | |
2903 | /* Get the start addr of function. */ | |
2904 | addr = get_pc_function_start (addr); | |
2905 | if (addr == 0) | |
2906 | { | |
2907 | if (record_pic_hide_nofunction) | |
2908 | goto exec; | |
2909 | addr = regcache_read_pc (regcache); | |
2910 | } | |
2911 | } | |
2912 | else | |
2913 | { | |
2914 | /* Get the start addr of line. */ | |
2915 | if (sal.symtab) | |
2916 | addr = sal.pc; | |
2917 | } | |
2918 | ||
2919 | function = lookup_minimal_symbol_by_pc (addr); | |
2920 | if (!function && record_pic_hide_nofunction) | |
2921 | goto exec; | |
2922 | ||
2923 | if (frame_id_eq (fi, prev_caller_fi)) | |
2924 | is_return = 1; | |
2925 | ||
2926 | if (record_pic_hide_same) | |
2927 | { | |
2928 | /* Check if addr in node_list. */ | |
2929 | for (nlp = node_list; nlp; nlp = nlp->next) | |
2930 | { | |
2931 | if (nlp->addr == addr) | |
2932 | { | |
2933 | if (!is_return | |
2934 | || set_record_pic_type != record_pic_function) | |
2935 | nlp->count ++; | |
2936 | break; | |
2937 | } | |
2938 | } | |
2939 | ||
2940 | /* Check if prev_addr and addr in edge_list. */ | |
2941 | if (nlp) | |
2942 | { | |
2943 | for (elp = edge_list; elp; elp = elp->next) | |
2944 | { | |
2945 | if (elp->s->addr == prev_addr && elp->t->addr == addr) | |
2946 | { | |
2947 | elp->count ++; | |
2948 | break; | |
2949 | } | |
2950 | } | |
2951 | } | |
2952 | } | |
2953 | ||
2954 | if (!nlp) | |
2955 | { | |
2956 | struct node_list nl; | |
2957 | CORE_ADDR function_addr; | |
2958 | struct function_list *flp; | |
2959 | ||
2960 | nl.addr = addr; | |
2961 | if (frame_diff && sal.symtab) | |
2962 | nl.showall = 1; | |
2963 | else | |
2964 | nl.showall = 0; | |
2965 | nl.symtab = sal.symtab; | |
2966 | nl.line = sal.line; | |
2967 | nl.function = function; | |
2968 | ||
2969 | /* Get the fid of the nl. */ | |
2970 | if (set_record_pic_type != record_pic_function) | |
2971 | function_addr = get_pc_function_start (addr); | |
2972 | else | |
2973 | function_addr = addr; | |
2974 | if (function_list_prev->addr == function_addr) | |
2975 | nl.fid = function_list_prev->fid; | |
2976 | else | |
2977 | { | |
2978 | for (flp = function_list; flp; flp = flp->next) | |
2979 | { | |
2980 | if (flp->addr == function_addr) | |
2981 | { | |
2982 | nl.fid = flp->fid; | |
2983 | break; | |
2984 | } | |
2985 | } | |
2986 | if (flp == NULL) | |
2987 | { | |
2988 | /* Creat a new entry to function_list. */ | |
2989 | nl.fid = fid_count ++; | |
2990 | flp = xmalloc (sizeof (struct function_list)); | |
2991 | flp->addr = function_addr; | |
2992 | flp->fid = nl.fid; | |
2993 | flp->next = NULL; | |
2994 | function_list_tail->next = flp; | |
2995 | function_list_tail = flp; | |
2996 | } | |
2997 | function_list_prev = flp; | |
2998 | } | |
2999 | ||
3000 | if (record_pic_hide_same) | |
3001 | { | |
3002 | nlp = xmalloc (sizeof (struct node_list)); | |
3003 | *nlp = nl; | |
3004 | nlp->count = 1; | |
3005 | ||
3006 | /* Add node to node_list. */ | |
3007 | nlp->next = NULL; | |
3008 | if (node_list_tail) | |
3009 | node_list_tail->next = nlp; | |
3010 | if (node_list == NULL) | |
3011 | node_list = nlp; | |
3012 | node_list_tail = nlp; | |
3013 | } | |
3014 | else | |
3015 | { | |
3016 | /* Draw the node. */ | |
3017 | record_pic_node (node, 256, gdbarch, | |
3018 | set_record_pic_type, &nl); | |
3019 | snprintf (line, 256, "%s i:%s", node, | |
3020 | pulongest (record_list->u.end.insn_num)); | |
3021 | strcpy (node, line); | |
3022 | snprintf (line, 256, "node: {title: \"%s\" " | |
3023 | "vertical_order: %d}\n", | |
3024 | node, nl.fid); | |
3025 | record_pic_fputs (fp, line); | |
3026 | } | |
3027 | } | |
3028 | ||
3029 | if (!elp) | |
3030 | { | |
3031 | struct edge_list el; | |
3032 | ||
3033 | el.is_return = is_return; | |
3034 | el.frame_diff = frame_diff; | |
3035 | ||
3036 | if (record_pic_hide_same) | |
3037 | { | |
3038 | elp = xmalloc (sizeof (struct edge_list)); | |
3039 | *elp = el; | |
3040 | elp->s = prev_nlp; | |
3041 | elp->t = nlp; | |
3042 | elp->count = 1; | |
3043 | ||
3044 | /* Add edge to edge_list. */ | |
3045 | elp->next = NULL; | |
3046 | if (edge_list_tail) | |
3047 | edge_list_tail->next = elp; | |
3048 | if (edge_list == NULL) | |
3049 | edge_list = elp; | |
3050 | edge_list_tail = elp; | |
3051 | } | |
3052 | else | |
3053 | { | |
3054 | /* Draw the edge. */ | |
3055 | record_pic_edge (line, 256, &el, node, prev_node); | |
3056 | record_pic_fputs (fp, line); | |
3057 | record_pic_fputs (fp, " }\n"); | |
3058 | } | |
3059 | } | |
3060 | ||
3061 | if (record_pic_hide_same) | |
3062 | prev_nlp = nlp; | |
3063 | else | |
3064 | snprintf (prev_node, 256, "%s", node); | |
3065 | prev_addr = addr; | |
3066 | } | |
3067 | ||
3068 | prev_sal = sal; | |
3069 | prev_fi = fi; | |
3070 | prev_caller_fi = caller_fi; | |
3071 | } | |
3072 | ||
3073 | exec: | |
3074 | /* Execute entry. */ | |
3075 | record_exec_insn (regcache, gdbarch, record_list); | |
3076 | ||
3077 | if (record_list->next) | |
3078 | record_list = record_list->next; | |
3079 | else | |
3080 | break; | |
3081 | } | |
3082 | ||
3083 | if (record_pic_hide_same) | |
3084 | { | |
3085 | struct node_list *nlp = NULL; | |
3086 | struct edge_list *elp = NULL; | |
3087 | char node[256]; | |
3088 | ||
3089 | for (nlp = node_list; nlp; nlp = nlp->next) | |
3090 | { | |
3091 | /* Draw the node. */ | |
3092 | record_pic_node (node, 256, gdbarch, set_record_pic_type, nlp); | |
3093 | snprintf (line, 256, "node: {title: \"%s c:%d\" " | |
3094 | "vertical_order: %d}\n", node, | |
3095 | nlp->count, nlp->fid); | |
3096 | record_pic_fputs (fp, line); | |
3097 | } | |
3098 | ||
3099 | record_pic_node (node, 256, gdbarch, set_record_pic_type, edge_list->t); | |
3100 | snprintf (line, 256, | |
3101 | "edge: {color:red sourcename: \"[BEGIN]\" targetname: \"%s c:%d\"}\n", | |
3102 | node, edge_list->count); | |
3103 | record_pic_fputs (fp, line); | |
3104 | for (elp = edge_list->next; elp; elp = elp->next) | |
3105 | { | |
3106 | /* Draw the edge. */ | |
3107 | record_pic_node (prev_node, 256, gdbarch, set_record_pic_type, | |
3108 | elp->s); | |
3109 | snprintf (line, 256, "%s c:%d", prev_node, elp->s->count); | |
3110 | strcpy (prev_node, line); | |
3111 | record_pic_node (node, 256, gdbarch, set_record_pic_type, | |
3112 | elp->t); | |
3113 | snprintf (line, 256, "%s c:%d", node, elp->t->count); | |
3114 | strcpy (node, line); | |
3115 | record_pic_edge (line, 256, elp, node, prev_node); | |
3116 | record_pic_fputs (fp, line); | |
3117 | snprintf (line, 256, " label: \"c:%d\"}\n", elp->count); | |
3118 | record_pic_fputs (fp, line); | |
3119 | } | |
3120 | } | |
3121 | ||
3122 | /* Write the last node. */ | |
3123 | snprintf (line, 256, "node: {title: \"[END]\" vertical_order: %d}\n", | |
3124 | fid_count); | |
3125 | record_pic_fputs (fp, line); | |
3126 | snprintf (line, 256, | |
3127 | "edge: {color:red sourcename: \"%s\" targetname: \"[END]\" }\n", | |
3128 | prev_node); | |
3129 | record_pic_fputs (fp, line); | |
3130 | ||
3131 | /* Write the tail. */ | |
3132 | record_pic_fputs (fp, "}\n"); | |
3133 | ||
3134 | /* Reverse execute to cur_record_list. */ | |
3135 | while (1) | |
3136 | { | |
3137 | /* Check for beginning and end of log. */ | |
3138 | if (record_list == cur_record_list) | |
3139 | break; | |
3140 | ||
3141 | record_exec_insn (regcache, gdbarch, record_list); | |
3142 | ||
3143 | if (record_list->prev) | |
3144 | record_list = record_list->prev; | |
3145 | } | |
3146 | ||
3147 | do_cleanups (set_cleanups); | |
3148 | do_cleanups (old_cleanups); | |
3149 | ||
3150 | /* Succeeded. */ | |
3151 | printf_filtered (_("Saved file %s with execution log.\n"), | |
3152 | recfilename); | |
3153 | } | |
3154 | ||
6b04bdb7 MS |
3155 | /* record_goto_insn -- rewind the record log (forward or backward, |
3156 | depending on DIR) to the given entry, changing the program state | |
3157 | correspondingly. */ | |
3158 | ||
3159 | static void | |
3160 | record_goto_insn (struct record_entry *entry, | |
3161 | enum exec_direction_kind dir) | |
3162 | { | |
3163 | struct cleanup *set_cleanups = record_gdb_operation_disable_set (); | |
3164 | struct regcache *regcache = get_current_regcache (); | |
3165 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
3166 | ||
3167 | /* Assume everything is valid: we will hit the entry, | |
3168 | and we will not hit the end of the recording. */ | |
3169 | ||
3170 | if (dir == EXEC_FORWARD) | |
3171 | record_list = record_list->next; | |
3172 | ||
3173 | do | |
3174 | { | |
3175 | record_exec_insn (regcache, gdbarch, record_list); | |
3176 | if (dir == EXEC_REVERSE) | |
3177 | record_list = record_list->prev; | |
3178 | else | |
3179 | record_list = record_list->next; | |
3180 | } while (record_list != entry); | |
3181 | do_cleanups (set_cleanups); | |
3182 | } | |
3183 | ||
3184 | /* "record goto" command. Argument is an instruction number, | |
3185 | as given by "info record". | |
3186 | ||
3187 | Rewinds the recording (forward or backward) to the given instruction. */ | |
3188 | ||
3189 | static void | |
3190 | cmd_record_goto (char *arg, int from_tty) | |
3191 | { | |
3192 | struct record_entry *p = NULL; | |
3193 | ULONGEST target_insn = 0; | |
3194 | ||
3195 | if (arg == NULL || *arg == '\0') | |
3196 | error (_("Command requires an argument (insn number to go to).")); | |
3197 | ||
3198 | if (strncmp (arg, "start", strlen ("start")) == 0 | |
3199 | || strncmp (arg, "begin", strlen ("begin")) == 0) | |
3200 | { | |
3201 | /* Special case. Find first insn. */ | |
3202 | for (p = &record_first; p != NULL; p = p->next) | |
3203 | if (p->type == record_end) | |
3204 | break; | |
3205 | if (p) | |
3206 | target_insn = p->u.end.insn_num; | |
3207 | } | |
3208 | else if (strncmp (arg, "end", strlen ("end")) == 0) | |
3209 | { | |
3210 | /* Special case. Find last insn. */ | |
3211 | for (p = record_list; p->next != NULL; p = p->next) | |
3212 | ; | |
3213 | for (; p!= NULL; p = p->prev) | |
3214 | if (p->type == record_end) | |
3215 | break; | |
3216 | if (p) | |
3217 | target_insn = p->u.end.insn_num; | |
3218 | } | |
3219 | else | |
3220 | { | |
3221 | /* General case. Find designated insn. */ | |
3222 | target_insn = parse_and_eval_long (arg); | |
3223 | ||
3224 | for (p = &record_first; p != NULL; p = p->next) | |
3225 | if (p->type == record_end && p->u.end.insn_num == target_insn) | |
3226 | break; | |
3227 | } | |
3228 | ||
3229 | if (p == NULL) | |
3230 | error (_("Target insn '%s' not found."), arg); | |
3231 | else if (p == record_list) | |
3232 | error (_("Already at insn '%s'."), arg); | |
3233 | else if (p->u.end.insn_num > record_list->u.end.insn_num) | |
3234 | { | |
3235 | printf_filtered (_("Go forward to insn number %s\n"), | |
3236 | pulongest (target_insn)); | |
3237 | record_goto_insn (p, EXEC_FORWARD); | |
3238 | } | |
3239 | else | |
3240 | { | |
3241 | printf_filtered (_("Go backward to insn number %s\n"), | |
3242 | pulongest (target_insn)); | |
3243 | record_goto_insn (p, EXEC_REVERSE); | |
3244 | } | |
3245 | registers_changed (); | |
3246 | reinit_frame_cache (); | |
3247 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
3248 | } | |
3249 | ||
69d05d38 HZ |
3250 | void |
3251 | _initialize_record (void) | |
3252 | { | |
0156b218 MS |
3253 | struct cmd_list_element *c; |
3254 | ||
69d05d38 HZ |
3255 | /* Init record_first. */ |
3256 | record_first.prev = NULL; | |
3257 | record_first.next = NULL; | |
3258 | record_first.type = record_end; | |
3259 | ||
3260 | init_record_ops (); | |
3261 | add_target (&record_ops); | |
27699eea MS |
3262 | init_record_core_ops (); |
3263 | add_target (&record_core_ops); | |
69d05d38 HZ |
3264 | |
3265 | add_setshow_zinteger_cmd ("record", no_class, &record_debug, | |
3266 | _("Set debugging of record/replay feature."), | |
3267 | _("Show debugging of record/replay feature."), | |
3268 | _("When enabled, debugging output for " | |
3269 | "record/replay feature is displayed."), | |
3270 | NULL, show_record_debug, &setdebuglist, | |
3271 | &showdebuglist); | |
3272 | ||
0156b218 MS |
3273 | c = add_prefix_cmd ("record", class_obscure, cmd_record_start, |
3274 | _("Abbreviated form of \"target record\" command."), | |
3275 | &record_cmdlist, "record ", 0, &cmdlist); | |
3276 | set_cmd_completer (c, filename_completer); | |
3277 | ||
69d05d38 HZ |
3278 | add_com_alias ("rec", "record", class_obscure, 1); |
3279 | add_prefix_cmd ("record", class_support, set_record_command, | |
3280 | _("Set record options"), &set_record_cmdlist, | |
3281 | "set record ", 0, &setlist); | |
3282 | add_alias_cmd ("rec", "record", class_obscure, 1, &setlist); | |
3283 | add_prefix_cmd ("record", class_support, show_record_command, | |
3284 | _("Show record options"), &show_record_cmdlist, | |
3285 | "show record ", 0, &showlist); | |
3286 | add_alias_cmd ("rec", "record", class_obscure, 1, &showlist); | |
3287 | add_prefix_cmd ("record", class_support, info_record_command, | |
3288 | _("Info record options"), &info_record_cmdlist, | |
3289 | "info record ", 0, &infolist); | |
3290 | add_alias_cmd ("rec", "record", class_obscure, 1, &infolist); | |
3291 | ||
0156b218 MS |
3292 | c = add_cmd ("save", class_obscure, cmd_record_save, |
3293 | _("Save the execution log to a file.\n\ | |
3294 | Argument is optional filename.\n\ | |
3295 | Default filename is 'gdb_record.<process_id>'."), | |
3296 | &record_cmdlist); | |
3297 | set_cmd_completer (c, filename_completer); | |
3298 | ||
3299 | c = add_cmd ("restore", class_obscure, cmd_record_restore, | |
3300 | _("Restore the execution log from a file.\n\ | |
3301 | Argument is filename. File must be created with 'record save'."), | |
3302 | &record_cmdlist); | |
3303 | set_cmd_completer (c, filename_completer); | |
69d05d38 HZ |
3304 | |
3305 | add_cmd ("delete", class_obscure, cmd_record_delete, | |
3306 | _("Delete the rest of execution log and start recording it anew."), | |
3307 | &record_cmdlist); | |
3308 | add_alias_cmd ("d", "delete", class_obscure, 1, &record_cmdlist); | |
3309 | add_alias_cmd ("del", "delete", class_obscure, 1, &record_cmdlist); | |
3310 | ||
3311 | add_cmd ("stop", class_obscure, cmd_record_stop, | |
3312 | _("Stop the record/replay target."), | |
3313 | &record_cmdlist); | |
3314 | add_alias_cmd ("s", "stop", class_obscure, 1, &record_cmdlist); | |
3315 | ||
3316 | /* Record instructions number limit command. */ | |
3317 | add_setshow_boolean_cmd ("stop-at-limit", no_class, | |
fda458ee | 3318 | &record_stop_at_limit, _("\ |
299a410e EZ |
3319 | Set whether record/replay stops when record/replay buffer becomes full."), _("\ |
3320 | Show whether record/replay stops when record/replay buffer becomes full."), _("\ | |
3321 | Default is ON.\n\ | |
3322 | When ON, if the record/replay buffer becomes full, ask user what to do.\n\ | |
3323 | When OFF, if the record/replay buffer becomes full,\n\ | |
3324 | delete the oldest recorded instruction to make room for each new one."), | |
fda458ee MS |
3325 | NULL, NULL, |
3326 | &set_record_cmdlist, &show_record_cmdlist); | |
191e1813 | 3327 | add_setshow_uinteger_cmd ("insn-number-max", no_class, |
69d05d38 HZ |
3328 | &record_insn_max_num, |
3329 | _("Set record/replay buffer limit."), | |
299a410e EZ |
3330 | _("Show record/replay buffer limit."), _("\ |
3331 | Set the maximum number of instructions to be stored in the\n\ | |
3332 | record/replay buffer. Zero means unlimited. Default is 200000."), | |
69d05d38 HZ |
3333 | set_record_insn_max_num, |
3334 | NULL, &set_record_cmdlist, &show_record_cmdlist); | |
6b04bdb7 MS |
3335 | |
3336 | add_cmd ("goto", class_obscure, cmd_record_goto, _("\ | |
3337 | Restore the program to its state at instruction number N.\n\ | |
3338 | Argument is instruction number, as shown by 'info record'."), | |
3339 | &record_cmdlist); | |
bb08c432 HZ |
3340 | |
3341 | add_setshow_boolean_cmd ("memory-query", no_class, | |
3342 | &record_memory_query, _("\ | |
3343 | Set whether query if PREC cannot record memory change of next instruction."), | |
3344 | _("\ | |
3345 | Show whether query if PREC cannot record memory change of next instruction."), | |
3346 | _("\ | |
3347 | Default is OFF.\n\ | |
3348 | When ON, query if PREC cannot record memory change of next instruction."), | |
3349 | NULL, NULL, | |
3350 | &set_record_cmdlist, &show_record_cmdlist); | |
a480d2f6 HZ |
3351 | |
3352 | /* For "record pic" command. */ | |
3353 | c = add_cmd ("pic", class_obscure, cmd_record_pic, | |
3354 | _("Save the execution log to a vcg file.\n\ | |
3355 | Argument is optional filename.\n\ | |
3356 | Default filename is 'gdb_record_<process_id>.vcg'."), | |
3357 | &record_cmdlist); | |
3358 | set_cmd_completer (c, filename_completer); | |
3359 | add_prefix_cmd ("pic", class_support, set_record_pic_command, | |
3360 | _("Set record pic options"), &set_record_pic_cmdlist, | |
3361 | "set record pic ", 0, &set_record_cmdlist); | |
3362 | add_prefix_cmd ("pic", class_support, show_record_pic_command, | |
3363 | _("Show record pic options"), &show_record_pic_cmdlist, | |
3364 | "show record pic ", 0, &show_record_cmdlist); | |
3365 | add_setshow_enum_cmd ("type", no_class, | |
3366 | record_pic_enum, &set_record_pic_type, _("\ | |
3367 | Set the type of the nodes that record pic command saved."), _("\ | |
3368 | Show the type of the nodes that record pic command saved."), _("\ | |
3369 | When LINE, each node of vcg file that command record pic saved\n\ | |
3370 | will be a line of the inferior.\n\ | |
3371 | When FUNCTION, each node of vcg file that command record pic saved\n\ | |
3372 | will be a function of the inferior."), | |
3373 | NULL, NULL, | |
3374 | &set_record_pic_cmdlist, &show_record_pic_cmdlist); | |
3375 | add_setshow_boolean_cmd ("hide-nofunction", no_class, | |
3376 | &record_pic_hide_nofunction, _("\ | |
3377 | Set whether record pic command hide the nodes that don't have the function name."), _("\ | |
3378 | Show whether record pic command hide the nodes that don't have the function name."), _("\ | |
3379 | Default is ON.\n\ | |
3380 | When ON, record pic command will hide the nodes that don't have\n\ | |
3381 | the function name.\n\ | |
3382 | When OFF, record pic command will show the nodes that don't have\n\ | |
3383 | the function name."), | |
3384 | NULL, NULL, | |
3385 | &set_record_pic_cmdlist, &show_record_pic_cmdlist); | |
3386 | add_setshow_boolean_cmd ("hide-nosource", no_class, | |
3387 | &record_pic_hide_nosource, _("\ | |
3388 | Set whether record pic command hide the nodes that don't have the source message."), _("\ | |
3389 | Show whether record pic command hide the nodes that don't have the source message."), _("\ | |
3390 | Default is ON.\n\ | |
3391 | When ON, record pic command will hide the nodes that don't have\n\ | |
3392 | the source message.\n\ | |
3393 | When OFF, record pic command will show the nodes that don't have\n\ | |
3394 | the source message."), | |
3395 | NULL, NULL, | |
3396 | &set_record_pic_cmdlist, &show_record_pic_cmdlist); | |
3397 | add_setshow_boolean_cmd ("hide-sameaddr", no_class, | |
3398 | &record_pic_hide_same, _("\ | |
3399 | Set whether record pic command hide the nodes that have the same address node in vcg file."), _("\ | |
3400 | Show whether record pic command hide the nodes that have the same address node in vcg file."), _("\ | |
3401 | Default is ON.\n\ | |
3402 | When ON, record pic command will hide the nodes that have\n\ | |
3403 | the same address node in vcg file.\n\ | |
3404 | And record pic will show the execute count number of this line\n\ | |
3405 | in format \"c:number\".\n\ | |
3406 | When OFF, record pic command will show the nodes that have\n\ | |
3407 | the same address node in vcg file.\n\ | |
3408 | And record pic show the instruction number in format \"i:number\"\n\ | |
3409 | that \"record goto\" support."), | |
3410 | NULL, NULL, | |
3411 | &set_record_pic_cmdlist, &show_record_pic_cmdlist); | |
69d05d38 | 3412 | } |