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d02ed0bb MM |
1 | /* Process record and replay target for GDB, the GNU debugger. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 2013-2014 Free Software Foundation, Inc. |
d02ed0bb MM |
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" | |
26 | #include "completer.h" | |
27 | #include "arch-utils.h" | |
28 | #include "gdbcore.h" | |
29 | #include "exec.h" | |
30 | #include "record.h" | |
31 | #include "record-full.h" | |
32 | #include "elf-bfd.h" | |
33 | #include "gcore.h" | |
34 | #include "event-loop.h" | |
35 | #include "inf-loop.h" | |
36 | #include "gdb_bfd.h" | |
37 | #include "observer.h" | |
38 | ||
39 | #include <signal.h> | |
40 | ||
41 | /* This module implements "target record-full", also known as "process | |
42 | record and replay". This target sits on top of a "normal" target | |
43 | (a target that "has execution"), and provides a record and replay | |
44 | functionality, including reverse debugging. | |
45 | ||
46 | Target record has two modes: recording, and replaying. | |
47 | ||
48 | In record mode, we intercept the to_resume and to_wait methods. | |
49 | Whenever gdb resumes the target, we run the target in single step | |
50 | mode, and we build up an execution log in which, for each executed | |
51 | instruction, we record all changes in memory and register state. | |
52 | This is invisible to the user, to whom it just looks like an | |
53 | ordinary debugging session (except for performance degredation). | |
54 | ||
55 | In replay mode, instead of actually letting the inferior run as a | |
56 | process, we simulate its execution by playing back the recorded | |
57 | execution log. For each instruction in the log, we simulate the | |
58 | instruction's side effects by duplicating the changes that it would | |
59 | have made on memory and registers. */ | |
60 | ||
88d1aa9d | 61 | #define DEFAULT_RECORD_FULL_INSN_MAX_NUM 200000 |
d02ed0bb | 62 | |
88d1aa9d MM |
63 | #define RECORD_FULL_IS_REPLAY \ |
64 | (record_full_list->next || execution_direction == EXEC_REVERSE) | |
d02ed0bb | 65 | |
88d1aa9d | 66 | #define RECORD_FULL_FILE_MAGIC netorder32(0x20091016) |
d02ed0bb MM |
67 | |
68 | /* These are the core structs of the process record functionality. | |
69 | ||
88d1aa9d MM |
70 | A record_full_entry is a record of the value change of a register |
71 | ("record_full_reg") or a part of memory ("record_full_mem"). And each | |
72 | instruction must have a struct record_full_entry ("record_full_end") | |
73 | that indicates that this is the last struct record_full_entry of this | |
d02ed0bb MM |
74 | instruction. |
75 | ||
88d1aa9d MM |
76 | Each struct record_full_entry is linked to "record_full_list" by "prev" |
77 | and "next" pointers. */ | |
d02ed0bb | 78 | |
88d1aa9d | 79 | struct record_full_mem_entry |
d02ed0bb MM |
80 | { |
81 | CORE_ADDR addr; | |
82 | int len; | |
83 | /* Set this flag if target memory for this entry | |
84 | can no longer be accessed. */ | |
85 | int mem_entry_not_accessible; | |
86 | union | |
87 | { | |
88 | gdb_byte *ptr; | |
89 | gdb_byte buf[sizeof (gdb_byte *)]; | |
90 | } u; | |
91 | }; | |
92 | ||
88d1aa9d | 93 | struct record_full_reg_entry |
d02ed0bb MM |
94 | { |
95 | unsigned short num; | |
96 | unsigned short len; | |
97 | union | |
98 | { | |
99 | gdb_byte *ptr; | |
100 | gdb_byte buf[2 * sizeof (gdb_byte *)]; | |
101 | } u; | |
102 | }; | |
103 | ||
88d1aa9d | 104 | struct record_full_end_entry |
d02ed0bb MM |
105 | { |
106 | enum gdb_signal sigval; | |
107 | ULONGEST insn_num; | |
108 | }; | |
109 | ||
88d1aa9d | 110 | enum record_full_type |
d02ed0bb | 111 | { |
88d1aa9d MM |
112 | record_full_end = 0, |
113 | record_full_reg, | |
114 | record_full_mem | |
d02ed0bb MM |
115 | }; |
116 | ||
117 | /* This is the data structure that makes up the execution log. | |
118 | ||
119 | The execution log consists of a single linked list of entries | |
88d1aa9d | 120 | of type "struct record_full_entry". It is doubly linked so that it |
d02ed0bb MM |
121 | can be traversed in either direction. |
122 | ||
123 | The start of the list is anchored by a struct called | |
88d1aa9d MM |
124 | "record_full_first". The pointer "record_full_list" either points |
125 | to the last entry that was added to the list (in record mode), or to | |
126 | the next entry in the list that will be executed (in replay mode). | |
d02ed0bb | 127 | |
88d1aa9d MM |
128 | Each list element (struct record_full_entry), in addition to next |
129 | and prev pointers, consists of a union of three entry types: mem, | |
130 | reg, and end. A field called "type" determines which entry type is | |
d02ed0bb MM |
131 | represented by a given list element. |
132 | ||
133 | Each instruction that is added to the execution log is represented | |
134 | by a variable number of list elements ('entries'). The instruction | |
135 | will have one "reg" entry for each register that is changed by | |
136 | executing the instruction (including the PC in every case). It | |
137 | will also have one "mem" entry for each memory change. Finally, | |
138 | each instruction will have an "end" entry that separates it from | |
139 | the changes associated with the next instruction. */ | |
140 | ||
88d1aa9d | 141 | struct record_full_entry |
d02ed0bb | 142 | { |
88d1aa9d MM |
143 | struct record_full_entry *prev; |
144 | struct record_full_entry *next; | |
145 | enum record_full_type type; | |
d02ed0bb MM |
146 | union |
147 | { | |
148 | /* reg */ | |
88d1aa9d | 149 | struct record_full_reg_entry reg; |
d02ed0bb | 150 | /* mem */ |
88d1aa9d | 151 | struct record_full_mem_entry mem; |
d02ed0bb | 152 | /* end */ |
88d1aa9d | 153 | struct record_full_end_entry end; |
d02ed0bb MM |
154 | } u; |
155 | }; | |
156 | ||
157 | /* If true, query if PREC cannot record memory | |
158 | change of next instruction. */ | |
25ea693b | 159 | int record_full_memory_query = 0; |
d02ed0bb | 160 | |
88d1aa9d | 161 | struct record_full_core_buf_entry |
d02ed0bb | 162 | { |
88d1aa9d | 163 | struct record_full_core_buf_entry *prev; |
d02ed0bb MM |
164 | struct target_section *p; |
165 | bfd_byte *buf; | |
166 | }; | |
167 | ||
168 | /* Record buf with core target. */ | |
88d1aa9d MM |
169 | static gdb_byte *record_full_core_regbuf = NULL; |
170 | static struct target_section *record_full_core_start; | |
171 | static struct target_section *record_full_core_end; | |
172 | static struct record_full_core_buf_entry *record_full_core_buf_list = NULL; | |
d02ed0bb MM |
173 | |
174 | /* The following variables are used for managing the linked list that | |
175 | represents the execution log. | |
176 | ||
88d1aa9d MM |
177 | record_full_first is the anchor that holds down the beginning of |
178 | the list. | |
d02ed0bb | 179 | |
88d1aa9d | 180 | record_full_list serves two functions: |
d02ed0bb MM |
181 | 1) In record mode, it anchors the end of the list. |
182 | 2) In replay mode, it traverses the list and points to | |
183 | the next instruction that must be emulated. | |
184 | ||
88d1aa9d MM |
185 | record_full_arch_list_head and record_full_arch_list_tail are used |
186 | to manage a separate list, which is used to build up the change | |
187 | elements of the currently executing instruction during record mode. | |
188 | When this instruction has been completely annotated in the "arch | |
189 | list", it will be appended to the main execution log. */ | |
d02ed0bb | 190 | |
88d1aa9d MM |
191 | static struct record_full_entry record_full_first; |
192 | static struct record_full_entry *record_full_list = &record_full_first; | |
193 | static struct record_full_entry *record_full_arch_list_head = NULL; | |
194 | static struct record_full_entry *record_full_arch_list_tail = NULL; | |
d02ed0bb | 195 | |
88d1aa9d MM |
196 | /* 1 ask user. 0 auto delete the last struct record_full_entry. */ |
197 | static int record_full_stop_at_limit = 1; | |
d02ed0bb | 198 | /* Maximum allowed number of insns in execution log. */ |
88d1aa9d MM |
199 | static unsigned int record_full_insn_max_num |
200 | = DEFAULT_RECORD_FULL_INSN_MAX_NUM; | |
d02ed0bb | 201 | /* Actual count of insns presently in execution log. */ |
7ee70bf5 | 202 | static unsigned int record_full_insn_num = 0; |
d02ed0bb MM |
203 | /* Count of insns logged so far (may be larger |
204 | than count of insns presently in execution log). */ | |
88d1aa9d | 205 | static ULONGEST record_full_insn_count; |
d02ed0bb MM |
206 | |
207 | /* The target_ops of process record. */ | |
88d1aa9d MM |
208 | static struct target_ops record_full_ops; |
209 | static struct target_ops record_full_core_ops; | |
d02ed0bb | 210 | |
8213266a PA |
211 | /* See record-full.h. */ |
212 | ||
213 | int | |
214 | record_full_is_used (void) | |
215 | { | |
216 | struct target_ops *t; | |
217 | ||
218 | t = find_record_target (); | |
219 | return (t == &record_full_ops | |
220 | || t == &record_full_core_ops); | |
221 | } | |
222 | ||
223 | ||
d02ed0bb MM |
224 | /* Command lists for "set/show record full". */ |
225 | static struct cmd_list_element *set_record_full_cmdlist; | |
226 | static struct cmd_list_element *show_record_full_cmdlist; | |
227 | ||
228 | /* Command list for "record full". */ | |
229 | static struct cmd_list_element *record_full_cmdlist; | |
230 | ||
231 | /* The beneath function pointers. */ | |
88d1aa9d MM |
232 | static struct target_ops *record_full_beneath_to_resume_ops; |
233 | static void (*record_full_beneath_to_resume) (struct target_ops *, ptid_t, int, | |
234 | enum gdb_signal); | |
235 | static struct target_ops *record_full_beneath_to_wait_ops; | |
236 | static ptid_t (*record_full_beneath_to_wait) (struct target_ops *, ptid_t, | |
237 | struct target_waitstatus *, | |
238 | int); | |
239 | static struct target_ops *record_full_beneath_to_store_registers_ops; | |
240 | static void (*record_full_beneath_to_store_registers) (struct target_ops *, | |
241 | struct regcache *, | |
242 | int regno); | |
243 | static struct target_ops *record_full_beneath_to_xfer_partial_ops; | |
4ac248ca | 244 | static target_xfer_partial_ftype *record_full_beneath_to_xfer_partial; |
88d1aa9d MM |
245 | static int |
246 | (*record_full_beneath_to_insert_breakpoint) (struct gdbarch *, | |
247 | struct bp_target_info *); | |
248 | static int | |
249 | (*record_full_beneath_to_remove_breakpoint) (struct gdbarch *, | |
250 | struct bp_target_info *); | |
251 | static int (*record_full_beneath_to_stopped_by_watchpoint) (void); | |
252 | static int (*record_full_beneath_to_stopped_data_address) (struct target_ops *, | |
253 | CORE_ADDR *); | |
254 | static void | |
255 | (*record_full_beneath_to_async) (void (*) (enum inferior_event_type, void *), | |
256 | void *); | |
257 | ||
258 | static void record_full_goto_insn (struct record_full_entry *entry, | |
259 | enum exec_direction_kind dir); | |
85e1311a | 260 | static void record_full_save (const char *recfilename); |
88d1aa9d MM |
261 | |
262 | /* Alloc and free functions for record_full_reg, record_full_mem, and | |
263 | record_full_end entries. */ | |
264 | ||
265 | /* Alloc a record_full_reg record entry. */ | |
266 | ||
267 | static inline struct record_full_entry * | |
268 | record_full_reg_alloc (struct regcache *regcache, int regnum) | |
269 | { | |
270 | struct record_full_entry *rec; | |
d02ed0bb MM |
271 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
272 | ||
88d1aa9d MM |
273 | rec = xcalloc (1, sizeof (struct record_full_entry)); |
274 | rec->type = record_full_reg; | |
d02ed0bb MM |
275 | rec->u.reg.num = regnum; |
276 | rec->u.reg.len = register_size (gdbarch, regnum); | |
277 | if (rec->u.reg.len > sizeof (rec->u.reg.u.buf)) | |
278 | rec->u.reg.u.ptr = (gdb_byte *) xmalloc (rec->u.reg.len); | |
279 | ||
280 | return rec; | |
281 | } | |
282 | ||
88d1aa9d | 283 | /* Free a record_full_reg record entry. */ |
d02ed0bb MM |
284 | |
285 | static inline void | |
88d1aa9d | 286 | record_full_reg_release (struct record_full_entry *rec) |
d02ed0bb | 287 | { |
88d1aa9d | 288 | gdb_assert (rec->type == record_full_reg); |
d02ed0bb MM |
289 | if (rec->u.reg.len > sizeof (rec->u.reg.u.buf)) |
290 | xfree (rec->u.reg.u.ptr); | |
291 | xfree (rec); | |
292 | } | |
293 | ||
88d1aa9d | 294 | /* Alloc a record_full_mem record entry. */ |
d02ed0bb | 295 | |
88d1aa9d MM |
296 | static inline struct record_full_entry * |
297 | record_full_mem_alloc (CORE_ADDR addr, int len) | |
d02ed0bb | 298 | { |
88d1aa9d | 299 | struct record_full_entry *rec; |
d02ed0bb | 300 | |
88d1aa9d MM |
301 | rec = xcalloc (1, sizeof (struct record_full_entry)); |
302 | rec->type = record_full_mem; | |
d02ed0bb MM |
303 | rec->u.mem.addr = addr; |
304 | rec->u.mem.len = len; | |
305 | if (rec->u.mem.len > sizeof (rec->u.mem.u.buf)) | |
306 | rec->u.mem.u.ptr = (gdb_byte *) xmalloc (len); | |
307 | ||
308 | return rec; | |
309 | } | |
310 | ||
88d1aa9d | 311 | /* Free a record_full_mem record entry. */ |
d02ed0bb MM |
312 | |
313 | static inline void | |
88d1aa9d | 314 | record_full_mem_release (struct record_full_entry *rec) |
d02ed0bb | 315 | { |
88d1aa9d | 316 | gdb_assert (rec->type == record_full_mem); |
d02ed0bb MM |
317 | if (rec->u.mem.len > sizeof (rec->u.mem.u.buf)) |
318 | xfree (rec->u.mem.u.ptr); | |
319 | xfree (rec); | |
320 | } | |
321 | ||
88d1aa9d | 322 | /* Alloc a record_full_end record entry. */ |
d02ed0bb | 323 | |
88d1aa9d MM |
324 | static inline struct record_full_entry * |
325 | record_full_end_alloc (void) | |
d02ed0bb | 326 | { |
88d1aa9d | 327 | struct record_full_entry *rec; |
d02ed0bb | 328 | |
88d1aa9d MM |
329 | rec = xcalloc (1, sizeof (struct record_full_entry)); |
330 | rec->type = record_full_end; | |
d02ed0bb MM |
331 | |
332 | return rec; | |
333 | } | |
334 | ||
88d1aa9d | 335 | /* Free a record_full_end record entry. */ |
d02ed0bb MM |
336 | |
337 | static inline void | |
88d1aa9d | 338 | record_full_end_release (struct record_full_entry *rec) |
d02ed0bb MM |
339 | { |
340 | xfree (rec); | |
341 | } | |
342 | ||
343 | /* Free one record entry, any type. | |
344 | Return entry->type, in case caller wants to know. */ | |
345 | ||
88d1aa9d MM |
346 | static inline enum record_full_type |
347 | record_full_entry_release (struct record_full_entry *rec) | |
d02ed0bb | 348 | { |
88d1aa9d | 349 | enum record_full_type type = rec->type; |
d02ed0bb MM |
350 | |
351 | switch (type) { | |
88d1aa9d MM |
352 | case record_full_reg: |
353 | record_full_reg_release (rec); | |
d02ed0bb | 354 | break; |
88d1aa9d MM |
355 | case record_full_mem: |
356 | record_full_mem_release (rec); | |
d02ed0bb | 357 | break; |
88d1aa9d MM |
358 | case record_full_end: |
359 | record_full_end_release (rec); | |
d02ed0bb MM |
360 | break; |
361 | } | |
362 | return type; | |
363 | } | |
364 | ||
365 | /* Free all record entries in list pointed to by REC. */ | |
366 | ||
367 | static void | |
88d1aa9d | 368 | record_full_list_release (struct record_full_entry *rec) |
d02ed0bb MM |
369 | { |
370 | if (!rec) | |
371 | return; | |
372 | ||
373 | while (rec->next) | |
374 | rec = rec->next; | |
375 | ||
376 | while (rec->prev) | |
377 | { | |
378 | rec = rec->prev; | |
88d1aa9d | 379 | record_full_entry_release (rec->next); |
d02ed0bb MM |
380 | } |
381 | ||
88d1aa9d | 382 | if (rec == &record_full_first) |
d02ed0bb | 383 | { |
88d1aa9d MM |
384 | record_full_insn_num = 0; |
385 | record_full_first.next = NULL; | |
d02ed0bb MM |
386 | } |
387 | else | |
88d1aa9d | 388 | record_full_entry_release (rec); |
d02ed0bb MM |
389 | } |
390 | ||
391 | /* Free all record entries forward of the given list position. */ | |
392 | ||
393 | static void | |
88d1aa9d | 394 | record_full_list_release_following (struct record_full_entry *rec) |
d02ed0bb | 395 | { |
88d1aa9d | 396 | struct record_full_entry *tmp = rec->next; |
d02ed0bb MM |
397 | |
398 | rec->next = NULL; | |
399 | while (tmp) | |
400 | { | |
401 | rec = tmp->next; | |
88d1aa9d | 402 | if (record_full_entry_release (tmp) == record_full_end) |
d02ed0bb | 403 | { |
88d1aa9d MM |
404 | record_full_insn_num--; |
405 | record_full_insn_count--; | |
d02ed0bb MM |
406 | } |
407 | tmp = rec; | |
408 | } | |
409 | } | |
410 | ||
411 | /* Delete the first instruction from the beginning of the log, to make | |
412 | room for adding a new instruction at the end of the log. | |
413 | ||
88d1aa9d | 414 | Note -- this function does not modify record_full_insn_num. */ |
d02ed0bb MM |
415 | |
416 | static void | |
88d1aa9d | 417 | record_full_list_release_first (void) |
d02ed0bb | 418 | { |
88d1aa9d | 419 | struct record_full_entry *tmp; |
d02ed0bb | 420 | |
88d1aa9d | 421 | if (!record_full_first.next) |
d02ed0bb MM |
422 | return; |
423 | ||
88d1aa9d | 424 | /* Loop until a record_full_end. */ |
d02ed0bb MM |
425 | while (1) |
426 | { | |
88d1aa9d MM |
427 | /* Cut record_full_first.next out of the linked list. */ |
428 | tmp = record_full_first.next; | |
429 | record_full_first.next = tmp->next; | |
430 | tmp->next->prev = &record_full_first; | |
d02ed0bb MM |
431 | |
432 | /* tmp is now isolated, and can be deleted. */ | |
88d1aa9d MM |
433 | if (record_full_entry_release (tmp) == record_full_end) |
434 | break; /* End loop at first record_full_end. */ | |
d02ed0bb | 435 | |
88d1aa9d | 436 | if (!record_full_first.next) |
d02ed0bb | 437 | { |
88d1aa9d | 438 | gdb_assert (record_full_insn_num == 1); |
d02ed0bb MM |
439 | break; /* End loop when list is empty. */ |
440 | } | |
441 | } | |
442 | } | |
443 | ||
88d1aa9d | 444 | /* Add a struct record_full_entry to record_full_arch_list. */ |
d02ed0bb MM |
445 | |
446 | static void | |
88d1aa9d | 447 | record_full_arch_list_add (struct record_full_entry *rec) |
d02ed0bb MM |
448 | { |
449 | if (record_debug > 1) | |
450 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d | 451 | "Process record: record_full_arch_list_add %s.\n", |
d02ed0bb MM |
452 | host_address_to_string (rec)); |
453 | ||
88d1aa9d | 454 | if (record_full_arch_list_tail) |
d02ed0bb | 455 | { |
88d1aa9d MM |
456 | record_full_arch_list_tail->next = rec; |
457 | rec->prev = record_full_arch_list_tail; | |
458 | record_full_arch_list_tail = rec; | |
d02ed0bb MM |
459 | } |
460 | else | |
461 | { | |
88d1aa9d MM |
462 | record_full_arch_list_head = rec; |
463 | record_full_arch_list_tail = rec; | |
d02ed0bb MM |
464 | } |
465 | } | |
466 | ||
467 | /* Return the value storage location of a record entry. */ | |
468 | static inline gdb_byte * | |
88d1aa9d | 469 | record_full_get_loc (struct record_full_entry *rec) |
d02ed0bb MM |
470 | { |
471 | switch (rec->type) { | |
88d1aa9d | 472 | case record_full_mem: |
d02ed0bb MM |
473 | if (rec->u.mem.len > sizeof (rec->u.mem.u.buf)) |
474 | return rec->u.mem.u.ptr; | |
475 | else | |
476 | return rec->u.mem.u.buf; | |
88d1aa9d | 477 | case record_full_reg: |
d02ed0bb MM |
478 | if (rec->u.reg.len > sizeof (rec->u.reg.u.buf)) |
479 | return rec->u.reg.u.ptr; | |
480 | else | |
481 | return rec->u.reg.u.buf; | |
88d1aa9d | 482 | case record_full_end: |
d02ed0bb | 483 | default: |
88d1aa9d | 484 | gdb_assert_not_reached ("unexpected record_full_entry type"); |
d02ed0bb MM |
485 | return NULL; |
486 | } | |
487 | } | |
488 | ||
88d1aa9d | 489 | /* Record the value of a register NUM to record_full_arch_list. */ |
d02ed0bb MM |
490 | |
491 | int | |
25ea693b | 492 | record_full_arch_list_add_reg (struct regcache *regcache, int regnum) |
d02ed0bb | 493 | { |
88d1aa9d | 494 | struct record_full_entry *rec; |
d02ed0bb MM |
495 | |
496 | if (record_debug > 1) | |
497 | fprintf_unfiltered (gdb_stdlog, | |
498 | "Process record: add register num = %d to " | |
499 | "record list.\n", | |
500 | regnum); | |
501 | ||
88d1aa9d | 502 | rec = record_full_reg_alloc (regcache, regnum); |
d02ed0bb | 503 | |
88d1aa9d | 504 | regcache_raw_read (regcache, regnum, record_full_get_loc (rec)); |
d02ed0bb | 505 | |
88d1aa9d | 506 | record_full_arch_list_add (rec); |
d02ed0bb MM |
507 | |
508 | return 0; | |
509 | } | |
510 | ||
511 | /* Record the value of a region of memory whose address is ADDR and | |
88d1aa9d | 512 | length is LEN to record_full_arch_list. */ |
d02ed0bb MM |
513 | |
514 | int | |
25ea693b | 515 | record_full_arch_list_add_mem (CORE_ADDR addr, int len) |
d02ed0bb | 516 | { |
88d1aa9d | 517 | struct record_full_entry *rec; |
d02ed0bb MM |
518 | |
519 | if (record_debug > 1) | |
520 | fprintf_unfiltered (gdb_stdlog, | |
521 | "Process record: add mem addr = %s len = %d to " | |
522 | "record list.\n", | |
523 | paddress (target_gdbarch (), addr), len); | |
524 | ||
525 | if (!addr) /* FIXME: Why? Some arch must permit it... */ | |
526 | return 0; | |
527 | ||
88d1aa9d | 528 | rec = record_full_mem_alloc (addr, len); |
d02ed0bb | 529 | |
88d1aa9d MM |
530 | if (record_read_memory (target_gdbarch (), addr, |
531 | record_full_get_loc (rec), len)) | |
d02ed0bb | 532 | { |
88d1aa9d | 533 | record_full_mem_release (rec); |
d02ed0bb MM |
534 | return -1; |
535 | } | |
536 | ||
88d1aa9d | 537 | record_full_arch_list_add (rec); |
d02ed0bb MM |
538 | |
539 | return 0; | |
540 | } | |
541 | ||
88d1aa9d MM |
542 | /* Add a record_full_end type struct record_full_entry to |
543 | record_full_arch_list. */ | |
d02ed0bb MM |
544 | |
545 | int | |
25ea693b | 546 | record_full_arch_list_add_end (void) |
d02ed0bb | 547 | { |
88d1aa9d | 548 | struct record_full_entry *rec; |
d02ed0bb MM |
549 | |
550 | if (record_debug > 1) | |
551 | fprintf_unfiltered (gdb_stdlog, | |
552 | "Process record: add end to arch list.\n"); | |
553 | ||
88d1aa9d | 554 | rec = record_full_end_alloc (); |
d02ed0bb | 555 | rec->u.end.sigval = GDB_SIGNAL_0; |
88d1aa9d | 556 | rec->u.end.insn_num = ++record_full_insn_count; |
d02ed0bb | 557 | |
88d1aa9d | 558 | record_full_arch_list_add (rec); |
d02ed0bb MM |
559 | |
560 | return 0; | |
561 | } | |
562 | ||
563 | static void | |
88d1aa9d | 564 | record_full_check_insn_num (int set_terminal) |
d02ed0bb | 565 | { |
7ee70bf5 | 566 | if (record_full_insn_num == record_full_insn_max_num) |
d02ed0bb | 567 | { |
7ee70bf5 PA |
568 | /* Ask user what to do. */ |
569 | if (record_full_stop_at_limit) | |
d02ed0bb | 570 | { |
7ee70bf5 PA |
571 | int q; |
572 | ||
573 | if (set_terminal) | |
574 | target_terminal_ours (); | |
575 | q = yquery (_("Do you want to auto delete previous execution " | |
576 | "log entries when record/replay buffer becomes " | |
577 | "full (record full stop-at-limit)?")); | |
578 | if (set_terminal) | |
579 | target_terminal_inferior (); | |
580 | if (q) | |
581 | record_full_stop_at_limit = 0; | |
582 | else | |
583 | error (_("Process record: stopped by user.")); | |
d02ed0bb MM |
584 | } |
585 | } | |
586 | } | |
587 | ||
588 | static void | |
88d1aa9d | 589 | record_full_arch_list_cleanups (void *ignore) |
d02ed0bb | 590 | { |
88d1aa9d | 591 | record_full_list_release (record_full_arch_list_tail); |
d02ed0bb MM |
592 | } |
593 | ||
594 | /* Before inferior step (when GDB record the running message, inferior | |
595 | only can step), GDB will call this function to record the values to | |
88d1aa9d | 596 | record_full_list. This function will call gdbarch_process_record to |
d02ed0bb | 597 | record the running message of inferior and set them to |
88d1aa9d | 598 | record_full_arch_list, and add it to record_full_list. */ |
d02ed0bb MM |
599 | |
600 | static int | |
88d1aa9d | 601 | record_full_message (struct regcache *regcache, enum gdb_signal signal) |
d02ed0bb MM |
602 | { |
603 | int ret; | |
604 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
88d1aa9d MM |
605 | struct cleanup *old_cleanups |
606 | = make_cleanup (record_full_arch_list_cleanups, 0); | |
d02ed0bb | 607 | |
88d1aa9d MM |
608 | record_full_arch_list_head = NULL; |
609 | record_full_arch_list_tail = NULL; | |
d02ed0bb | 610 | |
88d1aa9d MM |
611 | /* Check record_full_insn_num. */ |
612 | record_full_check_insn_num (1); | |
d02ed0bb MM |
613 | |
614 | /* If gdb sends a signal value to target_resume, | |
615 | save it in the 'end' field of the previous instruction. | |
616 | ||
617 | Maybe process record should record what really happened, | |
618 | rather than what gdb pretends has happened. | |
619 | ||
620 | So if Linux delivered the signal to the child process during | |
621 | the record mode, we will record it and deliver it again in | |
622 | the replay mode. | |
623 | ||
624 | If user says "ignore this signal" during the record mode, then | |
625 | it will be ignored again during the replay mode (no matter if | |
626 | the user says something different, like "deliver this signal" | |
627 | during the replay mode). | |
628 | ||
629 | User should understand that nothing he does during the replay | |
630 | mode will change the behavior of the child. If he tries, | |
631 | then that is a user error. | |
632 | ||
633 | But we should still deliver the signal to gdb during the replay, | |
634 | if we delivered it during the recording. Therefore we should | |
88d1aa9d MM |
635 | record the signal during record_full_wait, not |
636 | record_full_resume. */ | |
637 | if (record_full_list != &record_full_first) /* FIXME better way to check */ | |
d02ed0bb | 638 | { |
88d1aa9d MM |
639 | gdb_assert (record_full_list->type == record_full_end); |
640 | record_full_list->u.end.sigval = signal; | |
d02ed0bb MM |
641 | } |
642 | ||
643 | if (signal == GDB_SIGNAL_0 | |
644 | || !gdbarch_process_record_signal_p (gdbarch)) | |
645 | ret = gdbarch_process_record (gdbarch, | |
646 | regcache, | |
647 | regcache_read_pc (regcache)); | |
648 | else | |
649 | ret = gdbarch_process_record_signal (gdbarch, | |
650 | regcache, | |
651 | signal); | |
652 | ||
653 | if (ret > 0) | |
654 | error (_("Process record: inferior program stopped.")); | |
655 | if (ret < 0) | |
656 | error (_("Process record: failed to record execution log.")); | |
657 | ||
658 | discard_cleanups (old_cleanups); | |
659 | ||
88d1aa9d MM |
660 | record_full_list->next = record_full_arch_list_head; |
661 | record_full_arch_list_head->prev = record_full_list; | |
662 | record_full_list = record_full_arch_list_tail; | |
d02ed0bb | 663 | |
7ee70bf5 | 664 | if (record_full_insn_num == record_full_insn_max_num) |
88d1aa9d | 665 | record_full_list_release_first (); |
d02ed0bb | 666 | else |
88d1aa9d | 667 | record_full_insn_num++; |
d02ed0bb MM |
668 | |
669 | return 1; | |
670 | } | |
671 | ||
88d1aa9d | 672 | struct record_full_message_args { |
d02ed0bb MM |
673 | struct regcache *regcache; |
674 | enum gdb_signal signal; | |
675 | }; | |
676 | ||
677 | static int | |
88d1aa9d | 678 | record_full_message_wrapper (void *args) |
d02ed0bb | 679 | { |
88d1aa9d | 680 | struct record_full_message_args *record_full_args = args; |
d02ed0bb | 681 | |
88d1aa9d MM |
682 | return record_full_message (record_full_args->regcache, |
683 | record_full_args->signal); | |
d02ed0bb MM |
684 | } |
685 | ||
686 | static int | |
88d1aa9d MM |
687 | record_full_message_wrapper_safe (struct regcache *regcache, |
688 | enum gdb_signal signal) | |
d02ed0bb | 689 | { |
88d1aa9d | 690 | struct record_full_message_args args; |
d02ed0bb MM |
691 | |
692 | args.regcache = regcache; | |
693 | args.signal = signal; | |
694 | ||
88d1aa9d MM |
695 | return catch_errors (record_full_message_wrapper, &args, NULL, |
696 | RETURN_MASK_ALL); | |
d02ed0bb MM |
697 | } |
698 | ||
88d1aa9d | 699 | /* Set to 1 if record_full_store_registers and record_full_xfer_partial |
d02ed0bb MM |
700 | doesn't need record. */ |
701 | ||
88d1aa9d | 702 | static int record_full_gdb_operation_disable = 0; |
d02ed0bb MM |
703 | |
704 | struct cleanup * | |
25ea693b | 705 | record_full_gdb_operation_disable_set (void) |
d02ed0bb MM |
706 | { |
707 | struct cleanup *old_cleanups = NULL; | |
708 | ||
709 | old_cleanups = | |
88d1aa9d MM |
710 | make_cleanup_restore_integer (&record_full_gdb_operation_disable); |
711 | record_full_gdb_operation_disable = 1; | |
d02ed0bb MM |
712 | |
713 | return old_cleanups; | |
714 | } | |
715 | ||
716 | /* Flag set to TRUE for target_stopped_by_watchpoint. */ | |
88d1aa9d | 717 | static int record_full_hw_watchpoint = 0; |
d02ed0bb MM |
718 | |
719 | /* Execute one instruction from the record log. Each instruction in | |
720 | the log will be represented by an arbitrary sequence of register | |
721 | entries and memory entries, followed by an 'end' entry. */ | |
722 | ||
723 | static inline void | |
88d1aa9d MM |
724 | record_full_exec_insn (struct regcache *regcache, |
725 | struct gdbarch *gdbarch, | |
726 | struct record_full_entry *entry) | |
d02ed0bb MM |
727 | { |
728 | switch (entry->type) | |
729 | { | |
88d1aa9d | 730 | case record_full_reg: /* reg */ |
d02ed0bb MM |
731 | { |
732 | gdb_byte reg[MAX_REGISTER_SIZE]; | |
733 | ||
734 | if (record_debug > 1) | |
735 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d | 736 | "Process record: record_full_reg %s to " |
d02ed0bb MM |
737 | "inferior num = %d.\n", |
738 | host_address_to_string (entry), | |
739 | entry->u.reg.num); | |
740 | ||
741 | regcache_cooked_read (regcache, entry->u.reg.num, reg); | |
742 | regcache_cooked_write (regcache, entry->u.reg.num, | |
88d1aa9d MM |
743 | record_full_get_loc (entry)); |
744 | memcpy (record_full_get_loc (entry), reg, entry->u.reg.len); | |
d02ed0bb MM |
745 | } |
746 | break; | |
747 | ||
88d1aa9d | 748 | case record_full_mem: /* mem */ |
d02ed0bb MM |
749 | { |
750 | /* Nothing to do if the entry is flagged not_accessible. */ | |
751 | if (!entry->u.mem.mem_entry_not_accessible) | |
752 | { | |
753 | gdb_byte *mem = alloca (entry->u.mem.len); | |
754 | ||
755 | if (record_debug > 1) | |
756 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d | 757 | "Process record: record_full_mem %s to " |
d02ed0bb MM |
758 | "inferior addr = %s len = %d.\n", |
759 | host_address_to_string (entry), | |
760 | paddress (gdbarch, entry->u.mem.addr), | |
761 | entry->u.mem.len); | |
762 | ||
763 | if (record_read_memory (gdbarch, | |
764 | entry->u.mem.addr, mem, entry->u.mem.len)) | |
765 | entry->u.mem.mem_entry_not_accessible = 1; | |
766 | else | |
767 | { | |
768 | if (target_write_memory (entry->u.mem.addr, | |
88d1aa9d | 769 | record_full_get_loc (entry), |
d02ed0bb MM |
770 | entry->u.mem.len)) |
771 | { | |
772 | entry->u.mem.mem_entry_not_accessible = 1; | |
773 | if (record_debug) | |
774 | warning (_("Process record: error writing memory at " | |
775 | "addr = %s len = %d."), | |
776 | paddress (gdbarch, entry->u.mem.addr), | |
777 | entry->u.mem.len); | |
778 | } | |
779 | else | |
780 | { | |
88d1aa9d MM |
781 | memcpy (record_full_get_loc (entry), mem, |
782 | entry->u.mem.len); | |
d02ed0bb MM |
783 | |
784 | /* We've changed memory --- check if a hardware | |
785 | watchpoint should trap. Note that this | |
786 | presently assumes the target beneath supports | |
787 | continuable watchpoints. On non-continuable | |
788 | watchpoints target, we'll want to check this | |
789 | _before_ actually doing the memory change, and | |
790 | not doing the change at all if the watchpoint | |
791 | traps. */ | |
792 | if (hardware_watchpoint_inserted_in_range | |
793 | (get_regcache_aspace (regcache), | |
794 | entry->u.mem.addr, entry->u.mem.len)) | |
88d1aa9d | 795 | record_full_hw_watchpoint = 1; |
d02ed0bb MM |
796 | } |
797 | } | |
798 | } | |
799 | } | |
800 | break; | |
801 | } | |
802 | } | |
803 | ||
804 | static struct target_ops *tmp_to_resume_ops; | |
805 | static void (*tmp_to_resume) (struct target_ops *, ptid_t, int, | |
806 | enum gdb_signal); | |
807 | static struct target_ops *tmp_to_wait_ops; | |
808 | static ptid_t (*tmp_to_wait) (struct target_ops *, ptid_t, | |
809 | struct target_waitstatus *, | |
810 | int); | |
811 | static struct target_ops *tmp_to_store_registers_ops; | |
812 | static void (*tmp_to_store_registers) (struct target_ops *, | |
813 | struct regcache *, | |
814 | int regno); | |
815 | static struct target_ops *tmp_to_xfer_partial_ops; | |
4ac248ca | 816 | static target_xfer_partial_ftype *tmp_to_xfer_partial; |
d02ed0bb MM |
817 | static int (*tmp_to_insert_breakpoint) (struct gdbarch *, |
818 | struct bp_target_info *); | |
819 | static int (*tmp_to_remove_breakpoint) (struct gdbarch *, | |
820 | struct bp_target_info *); | |
821 | static int (*tmp_to_stopped_by_watchpoint) (void); | |
822 | static int (*tmp_to_stopped_data_address) (struct target_ops *, CORE_ADDR *); | |
823 | static int (*tmp_to_stopped_data_address) (struct target_ops *, CORE_ADDR *); | |
824 | static void (*tmp_to_async) (void (*) (enum inferior_event_type, void *), void *); | |
825 | ||
88d1aa9d | 826 | static void record_full_restore (void); |
d02ed0bb MM |
827 | |
828 | /* Asynchronous signal handle registered as event loop source for when | |
829 | we have pending events ready to be passed to the core. */ | |
830 | ||
88d1aa9d | 831 | static struct async_event_handler *record_full_async_inferior_event_token; |
d02ed0bb MM |
832 | |
833 | static void | |
88d1aa9d | 834 | record_full_async_inferior_event_handler (gdb_client_data data) |
d02ed0bb MM |
835 | { |
836 | inferior_event_handler (INF_REG_EVENT, NULL); | |
837 | } | |
838 | ||
839 | /* Open the process record target. */ | |
840 | ||
841 | static void | |
88d1aa9d | 842 | record_full_core_open_1 (char *name, int from_tty) |
d02ed0bb MM |
843 | { |
844 | struct regcache *regcache = get_current_regcache (); | |
845 | int regnum = gdbarch_num_regs (get_regcache_arch (regcache)); | |
846 | int i; | |
847 | ||
88d1aa9d | 848 | /* Get record_full_core_regbuf. */ |
d02ed0bb | 849 | target_fetch_registers (regcache, -1); |
88d1aa9d | 850 | record_full_core_regbuf = xmalloc (MAX_REGISTER_SIZE * regnum); |
d02ed0bb MM |
851 | for (i = 0; i < regnum; i ++) |
852 | regcache_raw_collect (regcache, i, | |
88d1aa9d | 853 | record_full_core_regbuf + MAX_REGISTER_SIZE * i); |
d02ed0bb | 854 | |
88d1aa9d MM |
855 | /* Get record_full_core_start and record_full_core_end. */ |
856 | if (build_section_table (core_bfd, &record_full_core_start, | |
857 | &record_full_core_end)) | |
d02ed0bb | 858 | { |
88d1aa9d MM |
859 | xfree (record_full_core_regbuf); |
860 | record_full_core_regbuf = NULL; | |
d02ed0bb MM |
861 | error (_("\"%s\": Can't find sections: %s"), |
862 | bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ())); | |
863 | } | |
864 | ||
88d1aa9d MM |
865 | push_target (&record_full_core_ops); |
866 | record_full_restore (); | |
d02ed0bb MM |
867 | } |
868 | ||
869 | /* "to_open" target method for 'live' processes. */ | |
870 | ||
871 | static void | |
88d1aa9d | 872 | record_full_open_1 (char *name, int from_tty) |
d02ed0bb MM |
873 | { |
874 | if (record_debug) | |
88d1aa9d | 875 | fprintf_unfiltered (gdb_stdlog, "Process record: record_full_open\n"); |
d02ed0bb MM |
876 | |
877 | /* check exec */ | |
878 | if (!target_has_execution) | |
879 | error (_("Process record: the program is not being run.")); | |
880 | if (non_stop) | |
881 | error (_("Process record target can't debug inferior in non-stop mode " | |
882 | "(non-stop).")); | |
883 | ||
884 | if (!gdbarch_process_record_p (target_gdbarch ())) | |
885 | error (_("Process record: the current architecture doesn't support " | |
886 | "record function.")); | |
887 | ||
888 | if (!tmp_to_resume) | |
889 | error (_("Could not find 'to_resume' method on the target stack.")); | |
890 | if (!tmp_to_wait) | |
891 | error (_("Could not find 'to_wait' method on the target stack.")); | |
892 | if (!tmp_to_store_registers) | |
893 | error (_("Could not find 'to_store_registers' " | |
894 | "method on the target stack.")); | |
895 | if (!tmp_to_insert_breakpoint) | |
896 | error (_("Could not find 'to_insert_breakpoint' " | |
897 | "method on the target stack.")); | |
898 | if (!tmp_to_remove_breakpoint) | |
899 | error (_("Could not find 'to_remove_breakpoint' " | |
900 | "method on the target stack.")); | |
901 | if (!tmp_to_stopped_by_watchpoint) | |
902 | error (_("Could not find 'to_stopped_by_watchpoint' " | |
903 | "method on the target stack.")); | |
904 | if (!tmp_to_stopped_data_address) | |
905 | error (_("Could not find 'to_stopped_data_address' " | |
906 | "method on the target stack.")); | |
907 | ||
88d1aa9d | 908 | push_target (&record_full_ops); |
d02ed0bb MM |
909 | } |
910 | ||
88d1aa9d | 911 | static void record_full_init_record_breakpoints (void); |
d02ed0bb MM |
912 | |
913 | /* "to_open" target method. Open the process record target. */ | |
914 | ||
915 | static void | |
88d1aa9d | 916 | record_full_open (char *name, int from_tty) |
d02ed0bb MM |
917 | { |
918 | struct target_ops *t; | |
919 | ||
920 | if (record_debug) | |
88d1aa9d | 921 | fprintf_unfiltered (gdb_stdlog, "Process record: record_full_open\n"); |
d02ed0bb | 922 | |
8213266a | 923 | record_preopen (); |
d02ed0bb MM |
924 | |
925 | /* Reset the tmp beneath pointers. */ | |
926 | tmp_to_resume_ops = NULL; | |
927 | tmp_to_resume = NULL; | |
928 | tmp_to_wait_ops = NULL; | |
929 | tmp_to_wait = NULL; | |
930 | tmp_to_store_registers_ops = NULL; | |
931 | tmp_to_store_registers = NULL; | |
932 | tmp_to_xfer_partial_ops = NULL; | |
933 | tmp_to_xfer_partial = NULL; | |
934 | tmp_to_insert_breakpoint = NULL; | |
935 | tmp_to_remove_breakpoint = NULL; | |
936 | tmp_to_stopped_by_watchpoint = NULL; | |
937 | tmp_to_stopped_data_address = NULL; | |
938 | tmp_to_async = NULL; | |
939 | ||
940 | /* Set the beneath function pointers. */ | |
941 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
942 | { | |
943 | if (!tmp_to_resume) | |
944 | { | |
945 | tmp_to_resume = t->to_resume; | |
946 | tmp_to_resume_ops = t; | |
947 | } | |
948 | if (!tmp_to_wait) | |
949 | { | |
950 | tmp_to_wait = t->to_wait; | |
951 | tmp_to_wait_ops = t; | |
952 | } | |
953 | if (!tmp_to_store_registers) | |
954 | { | |
955 | tmp_to_store_registers = t->to_store_registers; | |
956 | tmp_to_store_registers_ops = t; | |
957 | } | |
958 | if (!tmp_to_xfer_partial) | |
959 | { | |
960 | tmp_to_xfer_partial = t->to_xfer_partial; | |
961 | tmp_to_xfer_partial_ops = t; | |
962 | } | |
963 | if (!tmp_to_insert_breakpoint) | |
964 | tmp_to_insert_breakpoint = t->to_insert_breakpoint; | |
965 | if (!tmp_to_remove_breakpoint) | |
966 | tmp_to_remove_breakpoint = t->to_remove_breakpoint; | |
967 | if (!tmp_to_stopped_by_watchpoint) | |
968 | tmp_to_stopped_by_watchpoint = t->to_stopped_by_watchpoint; | |
969 | if (!tmp_to_stopped_data_address) | |
970 | tmp_to_stopped_data_address = t->to_stopped_data_address; | |
971 | if (!tmp_to_async) | |
972 | tmp_to_async = t->to_async; | |
973 | } | |
974 | if (!tmp_to_xfer_partial) | |
975 | error (_("Could not find 'to_xfer_partial' method on the target stack.")); | |
976 | ||
977 | /* Reset */ | |
88d1aa9d MM |
978 | record_full_insn_num = 0; |
979 | record_full_insn_count = 0; | |
980 | record_full_list = &record_full_first; | |
981 | record_full_list->next = NULL; | |
d02ed0bb MM |
982 | |
983 | /* Set the tmp beneath pointers to beneath pointers. */ | |
88d1aa9d MM |
984 | record_full_beneath_to_resume_ops = tmp_to_resume_ops; |
985 | record_full_beneath_to_resume = tmp_to_resume; | |
986 | record_full_beneath_to_wait_ops = tmp_to_wait_ops; | |
987 | record_full_beneath_to_wait = tmp_to_wait; | |
988 | record_full_beneath_to_store_registers_ops = tmp_to_store_registers_ops; | |
989 | record_full_beneath_to_store_registers = tmp_to_store_registers; | |
990 | record_full_beneath_to_xfer_partial_ops = tmp_to_xfer_partial_ops; | |
991 | record_full_beneath_to_xfer_partial = tmp_to_xfer_partial; | |
992 | record_full_beneath_to_insert_breakpoint = tmp_to_insert_breakpoint; | |
993 | record_full_beneath_to_remove_breakpoint = tmp_to_remove_breakpoint; | |
994 | record_full_beneath_to_stopped_by_watchpoint = tmp_to_stopped_by_watchpoint; | |
995 | record_full_beneath_to_stopped_data_address = tmp_to_stopped_data_address; | |
996 | record_full_beneath_to_async = tmp_to_async; | |
d02ed0bb MM |
997 | |
998 | if (core_bfd) | |
88d1aa9d | 999 | record_full_core_open_1 (name, from_tty); |
d02ed0bb | 1000 | else |
88d1aa9d | 1001 | record_full_open_1 (name, from_tty); |
d02ed0bb MM |
1002 | |
1003 | /* Register extra event sources in the event loop. */ | |
88d1aa9d MM |
1004 | record_full_async_inferior_event_token |
1005 | = create_async_event_handler (record_full_async_inferior_event_handler, | |
d02ed0bb MM |
1006 | NULL); |
1007 | ||
88d1aa9d | 1008 | record_full_init_record_breakpoints (); |
d02ed0bb MM |
1009 | |
1010 | observer_notify_record_changed (current_inferior (), 1); | |
1011 | } | |
1012 | ||
1013 | /* "to_close" target method. Close the process record target. */ | |
1014 | ||
1015 | static void | |
460014f5 | 1016 | record_full_close (void) |
d02ed0bb | 1017 | { |
88d1aa9d | 1018 | struct record_full_core_buf_entry *entry; |
d02ed0bb MM |
1019 | |
1020 | if (record_debug) | |
88d1aa9d | 1021 | fprintf_unfiltered (gdb_stdlog, "Process record: record_full_close\n"); |
d02ed0bb | 1022 | |
88d1aa9d | 1023 | record_full_list_release (record_full_list); |
d02ed0bb | 1024 | |
88d1aa9d MM |
1025 | /* Release record_full_core_regbuf. */ |
1026 | if (record_full_core_regbuf) | |
d02ed0bb | 1027 | { |
88d1aa9d MM |
1028 | xfree (record_full_core_regbuf); |
1029 | record_full_core_regbuf = NULL; | |
d02ed0bb MM |
1030 | } |
1031 | ||
88d1aa9d MM |
1032 | /* Release record_full_core_buf_list. */ |
1033 | if (record_full_core_buf_list) | |
d02ed0bb | 1034 | { |
88d1aa9d MM |
1035 | for (entry = record_full_core_buf_list->prev; entry; |
1036 | entry = entry->prev) | |
d02ed0bb | 1037 | { |
88d1aa9d MM |
1038 | xfree (record_full_core_buf_list); |
1039 | record_full_core_buf_list = entry; | |
d02ed0bb | 1040 | } |
88d1aa9d | 1041 | record_full_core_buf_list = NULL; |
d02ed0bb MM |
1042 | } |
1043 | ||
88d1aa9d MM |
1044 | if (record_full_async_inferior_event_token) |
1045 | delete_async_event_handler (&record_full_async_inferior_event_token); | |
d02ed0bb MM |
1046 | } |
1047 | ||
88d1aa9d | 1048 | static int record_full_resume_step = 0; |
d02ed0bb | 1049 | |
88d1aa9d MM |
1050 | /* True if we've been resumed, and so each record_full_wait call should |
1051 | advance execution. If this is false, record_full_wait will return a | |
d02ed0bb | 1052 | TARGET_WAITKIND_IGNORE. */ |
88d1aa9d | 1053 | static int record_full_resumed = 0; |
d02ed0bb MM |
1054 | |
1055 | /* The execution direction of the last resume we got. This is | |
1056 | necessary for async mode. Vis (order is not strictly accurate): | |
1057 | ||
1058 | 1. user has the global execution direction set to forward | |
1059 | 2. user does a reverse-step command | |
88d1aa9d | 1060 | 3. record_full_resume is called with global execution direction |
d02ed0bb MM |
1061 | temporarily switched to reverse |
1062 | 4. GDB's execution direction is reverted back to forward | |
1063 | 5. target record notifies event loop there's an event to handle | |
1064 | 6. infrun asks the target which direction was it going, and switches | |
1065 | the global execution direction accordingly (to reverse) | |
1066 | 7. infrun polls an event out of the record target, and handles it | |
1067 | 8. GDB goes back to the event loop, and goto #4. | |
1068 | */ | |
88d1aa9d | 1069 | static enum exec_direction_kind record_full_execution_dir = EXEC_FORWARD; |
d02ed0bb MM |
1070 | |
1071 | /* "to_resume" target method. Resume the process record target. */ | |
1072 | ||
1073 | static void | |
88d1aa9d MM |
1074 | record_full_resume (struct target_ops *ops, ptid_t ptid, int step, |
1075 | enum gdb_signal signal) | |
d02ed0bb | 1076 | { |
88d1aa9d MM |
1077 | record_full_resume_step = step; |
1078 | record_full_resumed = 1; | |
1079 | record_full_execution_dir = execution_direction; | |
d02ed0bb | 1080 | |
88d1aa9d | 1081 | if (!RECORD_FULL_IS_REPLAY) |
d02ed0bb MM |
1082 | { |
1083 | struct gdbarch *gdbarch = target_thread_architecture (ptid); | |
1084 | ||
88d1aa9d | 1085 | record_full_message (get_current_regcache (), signal); |
d02ed0bb MM |
1086 | |
1087 | if (!step) | |
1088 | { | |
1089 | /* This is not hard single step. */ | |
1090 | if (!gdbarch_software_single_step_p (gdbarch)) | |
1091 | { | |
1092 | /* This is a normal continue. */ | |
1093 | step = 1; | |
1094 | } | |
1095 | else | |
1096 | { | |
1097 | /* This arch support soft sigle step. */ | |
1098 | if (single_step_breakpoints_inserted ()) | |
1099 | { | |
1100 | /* This is a soft single step. */ | |
88d1aa9d | 1101 | record_full_resume_step = 1; |
d02ed0bb MM |
1102 | } |
1103 | else | |
1104 | { | |
1105 | /* This is a continue. | |
1106 | Try to insert a soft single step breakpoint. */ | |
1107 | if (!gdbarch_software_single_step (gdbarch, | |
1108 | get_current_frame ())) | |
1109 | { | |
1110 | /* This system don't want use soft single step. | |
1111 | Use hard sigle step. */ | |
1112 | step = 1; | |
1113 | } | |
1114 | } | |
1115 | } | |
1116 | } | |
1117 | ||
1118 | /* Make sure the target beneath reports all signals. */ | |
1119 | target_pass_signals (0, NULL); | |
1120 | ||
88d1aa9d MM |
1121 | record_full_beneath_to_resume (record_full_beneath_to_resume_ops, |
1122 | ptid, step, signal); | |
d02ed0bb MM |
1123 | } |
1124 | ||
1125 | /* We are about to start executing the inferior (or simulate it), | |
1126 | let's register it with the event loop. */ | |
1127 | if (target_can_async_p ()) | |
1128 | { | |
1129 | target_async (inferior_event_handler, 0); | |
1130 | /* Notify the event loop there's an event to wait for. We do | |
88d1aa9d MM |
1131 | most of the work in record_full_wait. */ |
1132 | mark_async_event_handler (record_full_async_inferior_event_token); | |
d02ed0bb MM |
1133 | } |
1134 | } | |
1135 | ||
88d1aa9d | 1136 | static int record_full_get_sig = 0; |
d02ed0bb MM |
1137 | |
1138 | /* SIGINT signal handler, registered by "to_wait" method. */ | |
1139 | ||
1140 | static void | |
88d1aa9d | 1141 | record_full_sig_handler (int signo) |
d02ed0bb MM |
1142 | { |
1143 | if (record_debug) | |
1144 | fprintf_unfiltered (gdb_stdlog, "Process record: get a signal\n"); | |
1145 | ||
1146 | /* It will break the running inferior in replay mode. */ | |
88d1aa9d | 1147 | record_full_resume_step = 1; |
d02ed0bb | 1148 | |
88d1aa9d | 1149 | /* It will let record_full_wait set inferior status to get the signal |
d02ed0bb | 1150 | SIGINT. */ |
88d1aa9d | 1151 | record_full_get_sig = 1; |
d02ed0bb MM |
1152 | } |
1153 | ||
1154 | static void | |
88d1aa9d | 1155 | record_full_wait_cleanups (void *ignore) |
d02ed0bb MM |
1156 | { |
1157 | if (execution_direction == EXEC_REVERSE) | |
1158 | { | |
88d1aa9d MM |
1159 | if (record_full_list->next) |
1160 | record_full_list = record_full_list->next; | |
d02ed0bb MM |
1161 | } |
1162 | else | |
88d1aa9d | 1163 | record_full_list = record_full_list->prev; |
d02ed0bb MM |
1164 | } |
1165 | ||
1166 | /* "to_wait" target method for process record target. | |
1167 | ||
1168 | In record mode, the target is always run in singlestep mode | |
1169 | (even when gdb says to continue). The to_wait method intercepts | |
1170 | the stop events and determines which ones are to be passed on to | |
1171 | gdb. Most stop events are just singlestep events that gdb is not | |
1172 | to know about, so the to_wait method just records them and keeps | |
1173 | singlestepping. | |
1174 | ||
1175 | In replay mode, this function emulates the recorded execution log, | |
1176 | one instruction at a time (forward or backward), and determines | |
1177 | where to stop. */ | |
1178 | ||
1179 | static ptid_t | |
88d1aa9d MM |
1180 | record_full_wait_1 (struct target_ops *ops, |
1181 | ptid_t ptid, struct target_waitstatus *status, | |
1182 | int options) | |
d02ed0bb | 1183 | { |
25ea693b | 1184 | struct cleanup *set_cleanups = record_full_gdb_operation_disable_set (); |
d02ed0bb MM |
1185 | |
1186 | if (record_debug) | |
1187 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d MM |
1188 | "Process record: record_full_wait " |
1189 | "record_full_resume_step = %d, " | |
1190 | "record_full_resumed = %d, direction=%s\n", | |
1191 | record_full_resume_step, record_full_resumed, | |
1192 | record_full_execution_dir == EXEC_FORWARD | |
1193 | ? "forward" : "reverse"); | |
1194 | ||
1195 | if (!record_full_resumed) | |
d02ed0bb MM |
1196 | { |
1197 | gdb_assert ((options & TARGET_WNOHANG) != 0); | |
1198 | ||
1199 | /* No interesting event. */ | |
1200 | status->kind = TARGET_WAITKIND_IGNORE; | |
1201 | return minus_one_ptid; | |
1202 | } | |
1203 | ||
88d1aa9d MM |
1204 | record_full_get_sig = 0; |
1205 | signal (SIGINT, record_full_sig_handler); | |
d02ed0bb | 1206 | |
88d1aa9d | 1207 | if (!RECORD_FULL_IS_REPLAY && ops != &record_full_core_ops) |
d02ed0bb | 1208 | { |
88d1aa9d | 1209 | if (record_full_resume_step) |
d02ed0bb MM |
1210 | { |
1211 | /* This is a single step. */ | |
88d1aa9d MM |
1212 | return record_full_beneath_to_wait (record_full_beneath_to_wait_ops, |
1213 | ptid, status, options); | |
d02ed0bb MM |
1214 | } |
1215 | else | |
1216 | { | |
1217 | /* This is not a single step. */ | |
1218 | ptid_t ret; | |
1219 | CORE_ADDR tmp_pc; | |
1220 | struct gdbarch *gdbarch = target_thread_architecture (inferior_ptid); | |
1221 | ||
1222 | while (1) | |
1223 | { | |
88d1aa9d MM |
1224 | ret = record_full_beneath_to_wait |
1225 | (record_full_beneath_to_wait_ops, ptid, status, options); | |
d02ed0bb MM |
1226 | if (status->kind == TARGET_WAITKIND_IGNORE) |
1227 | { | |
1228 | if (record_debug) | |
1229 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d | 1230 | "Process record: record_full_wait " |
d02ed0bb MM |
1231 | "target beneath not done yet\n"); |
1232 | return ret; | |
1233 | } | |
1234 | ||
1235 | if (single_step_breakpoints_inserted ()) | |
1236 | remove_single_step_breakpoints (); | |
1237 | ||
88d1aa9d | 1238 | if (record_full_resume_step) |
d02ed0bb MM |
1239 | return ret; |
1240 | ||
1241 | /* Is this a SIGTRAP? */ | |
1242 | if (status->kind == TARGET_WAITKIND_STOPPED | |
1243 | && status->value.sig == GDB_SIGNAL_TRAP) | |
1244 | { | |
1245 | struct regcache *regcache; | |
1246 | struct address_space *aspace; | |
1247 | ||
1248 | /* Yes -- this is likely our single-step finishing, | |
1249 | but check if there's any reason the core would be | |
1250 | interested in the event. */ | |
1251 | ||
1252 | registers_changed (); | |
1253 | regcache = get_current_regcache (); | |
1254 | tmp_pc = regcache_read_pc (regcache); | |
1255 | aspace = get_regcache_aspace (regcache); | |
1256 | ||
1257 | if (target_stopped_by_watchpoint ()) | |
1258 | { | |
1259 | /* Always interested in watchpoints. */ | |
1260 | } | |
1261 | else if (breakpoint_inserted_here_p (aspace, tmp_pc)) | |
1262 | { | |
1263 | /* There is a breakpoint here. Let the core | |
1264 | handle it. */ | |
1265 | if (software_breakpoint_inserted_here_p (aspace, tmp_pc)) | |
1266 | { | |
1267 | struct gdbarch *gdbarch | |
1268 | = get_regcache_arch (regcache); | |
1269 | CORE_ADDR decr_pc_after_break | |
1270 | = gdbarch_decr_pc_after_break (gdbarch); | |
1271 | if (decr_pc_after_break) | |
1272 | regcache_write_pc (regcache, | |
1273 | tmp_pc + decr_pc_after_break); | |
1274 | } | |
1275 | } | |
1276 | else | |
1277 | { | |
1278 | /* This is a single-step trap. Record the | |
1279 | insn and issue another step. | |
1280 | FIXME: this part can be a random SIGTRAP too. | |
1281 | But GDB cannot handle it. */ | |
1282 | int step = 1; | |
1283 | ||
88d1aa9d MM |
1284 | if (!record_full_message_wrapper_safe (regcache, |
1285 | GDB_SIGNAL_0)) | |
d02ed0bb MM |
1286 | { |
1287 | status->kind = TARGET_WAITKIND_STOPPED; | |
1288 | status->value.sig = GDB_SIGNAL_0; | |
1289 | break; | |
1290 | } | |
1291 | ||
1292 | if (gdbarch_software_single_step_p (gdbarch)) | |
1293 | { | |
1294 | /* Try to insert the software single step breakpoint. | |
1295 | If insert success, set step to 0. */ | |
1296 | set_executing (inferior_ptid, 0); | |
1297 | reinit_frame_cache (); | |
1298 | if (gdbarch_software_single_step (gdbarch, | |
1299 | get_current_frame ())) | |
1300 | step = 0; | |
1301 | set_executing (inferior_ptid, 1); | |
1302 | } | |
1303 | ||
1304 | if (record_debug) | |
1305 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d MM |
1306 | "Process record: record_full_wait " |
1307 | "issuing one more step in the " | |
1308 | "target beneath\n"); | |
1309 | record_full_beneath_to_resume | |
1310 | (record_full_beneath_to_resume_ops, ptid, step, | |
1311 | GDB_SIGNAL_0); | |
d02ed0bb MM |
1312 | continue; |
1313 | } | |
1314 | } | |
1315 | ||
1316 | /* The inferior is broken by a breakpoint or a signal. */ | |
1317 | break; | |
1318 | } | |
1319 | ||
1320 | return ret; | |
1321 | } | |
1322 | } | |
1323 | else | |
1324 | { | |
1325 | struct regcache *regcache = get_current_regcache (); | |
1326 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1327 | struct address_space *aspace = get_regcache_aspace (regcache); | |
1328 | int continue_flag = 1; | |
88d1aa9d MM |
1329 | int first_record_full_end = 1; |
1330 | struct cleanup *old_cleanups | |
1331 | = make_cleanup (record_full_wait_cleanups, 0); | |
d02ed0bb MM |
1332 | CORE_ADDR tmp_pc; |
1333 | ||
88d1aa9d | 1334 | record_full_hw_watchpoint = 0; |
d02ed0bb MM |
1335 | status->kind = TARGET_WAITKIND_STOPPED; |
1336 | ||
1337 | /* Check breakpoint when forward execute. */ | |
1338 | if (execution_direction == EXEC_FORWARD) | |
1339 | { | |
1340 | tmp_pc = regcache_read_pc (regcache); | |
1341 | if (breakpoint_inserted_here_p (aspace, tmp_pc)) | |
1342 | { | |
1343 | int decr_pc_after_break = gdbarch_decr_pc_after_break (gdbarch); | |
1344 | ||
1345 | if (record_debug) | |
1346 | fprintf_unfiltered (gdb_stdlog, | |
1347 | "Process record: break at %s.\n", | |
1348 | paddress (gdbarch, tmp_pc)); | |
1349 | ||
1350 | if (decr_pc_after_break | |
88d1aa9d | 1351 | && !record_full_resume_step |
d02ed0bb MM |
1352 | && software_breakpoint_inserted_here_p (aspace, tmp_pc)) |
1353 | regcache_write_pc (regcache, | |
1354 | tmp_pc + decr_pc_after_break); | |
1355 | goto replay_out; | |
1356 | } | |
1357 | } | |
1358 | ||
1359 | /* If GDB is in terminal_inferior mode, it will not get the signal. | |
1360 | And in GDB replay mode, GDB doesn't need to be in terminal_inferior | |
1361 | mode, because inferior will not executed. | |
1362 | Then set it to terminal_ours to make GDB get the signal. */ | |
1363 | target_terminal_ours (); | |
1364 | ||
88d1aa9d | 1365 | /* In EXEC_FORWARD mode, record_full_list points to the tail of prev |
d02ed0bb | 1366 | instruction. */ |
88d1aa9d MM |
1367 | if (execution_direction == EXEC_FORWARD && record_full_list->next) |
1368 | record_full_list = record_full_list->next; | |
d02ed0bb | 1369 | |
88d1aa9d | 1370 | /* Loop over the record_full_list, looking for the next place to |
d02ed0bb MM |
1371 | stop. */ |
1372 | do | |
1373 | { | |
1374 | /* Check for beginning and end of log. */ | |
1375 | if (execution_direction == EXEC_REVERSE | |
88d1aa9d | 1376 | && record_full_list == &record_full_first) |
d02ed0bb MM |
1377 | { |
1378 | /* Hit beginning of record log in reverse. */ | |
1379 | status->kind = TARGET_WAITKIND_NO_HISTORY; | |
1380 | break; | |
1381 | } | |
88d1aa9d | 1382 | if (execution_direction != EXEC_REVERSE && !record_full_list->next) |
d02ed0bb MM |
1383 | { |
1384 | /* Hit end of record log going forward. */ | |
1385 | status->kind = TARGET_WAITKIND_NO_HISTORY; | |
1386 | break; | |
1387 | } | |
1388 | ||
88d1aa9d | 1389 | record_full_exec_insn (regcache, gdbarch, record_full_list); |
d02ed0bb | 1390 | |
88d1aa9d | 1391 | if (record_full_list->type == record_full_end) |
d02ed0bb MM |
1392 | { |
1393 | if (record_debug > 1) | |
1394 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d | 1395 | "Process record: record_full_end %s to " |
d02ed0bb | 1396 | "inferior.\n", |
88d1aa9d | 1397 | host_address_to_string (record_full_list)); |
d02ed0bb | 1398 | |
88d1aa9d | 1399 | if (first_record_full_end && execution_direction == EXEC_REVERSE) |
d02ed0bb | 1400 | { |
88d1aa9d MM |
1401 | /* When reverse excute, the first record_full_end is the |
1402 | part of current instruction. */ | |
1403 | first_record_full_end = 0; | |
d02ed0bb MM |
1404 | } |
1405 | else | |
1406 | { | |
88d1aa9d | 1407 | /* In EXEC_REVERSE mode, this is the record_full_end of prev |
d02ed0bb | 1408 | instruction. |
88d1aa9d MM |
1409 | In EXEC_FORWARD mode, this is the record_full_end of |
1410 | current instruction. */ | |
d02ed0bb | 1411 | /* step */ |
88d1aa9d | 1412 | if (record_full_resume_step) |
d02ed0bb MM |
1413 | { |
1414 | if (record_debug > 1) | |
1415 | fprintf_unfiltered (gdb_stdlog, | |
1416 | "Process record: step.\n"); | |
1417 | continue_flag = 0; | |
1418 | } | |
1419 | ||
1420 | /* check breakpoint */ | |
1421 | tmp_pc = regcache_read_pc (regcache); | |
1422 | if (breakpoint_inserted_here_p (aspace, tmp_pc)) | |
1423 | { | |
1424 | int decr_pc_after_break | |
1425 | = gdbarch_decr_pc_after_break (gdbarch); | |
1426 | ||
1427 | if (record_debug) | |
1428 | fprintf_unfiltered (gdb_stdlog, | |
1429 | "Process record: break " | |
1430 | "at %s.\n", | |
1431 | paddress (gdbarch, tmp_pc)); | |
1432 | if (decr_pc_after_break | |
1433 | && execution_direction == EXEC_FORWARD | |
88d1aa9d | 1434 | && !record_full_resume_step |
d02ed0bb MM |
1435 | && software_breakpoint_inserted_here_p (aspace, |
1436 | tmp_pc)) | |
1437 | regcache_write_pc (regcache, | |
1438 | tmp_pc + decr_pc_after_break); | |
1439 | continue_flag = 0; | |
1440 | } | |
1441 | ||
88d1aa9d | 1442 | if (record_full_hw_watchpoint) |
d02ed0bb MM |
1443 | { |
1444 | if (record_debug) | |
1445 | fprintf_unfiltered (gdb_stdlog, | |
1446 | "Process record: hit hw " | |
1447 | "watchpoint.\n"); | |
1448 | continue_flag = 0; | |
1449 | } | |
1450 | /* Check target signal */ | |
88d1aa9d | 1451 | if (record_full_list->u.end.sigval != GDB_SIGNAL_0) |
d02ed0bb MM |
1452 | /* FIXME: better way to check */ |
1453 | continue_flag = 0; | |
1454 | } | |
1455 | } | |
1456 | ||
1457 | if (continue_flag) | |
1458 | { | |
1459 | if (execution_direction == EXEC_REVERSE) | |
1460 | { | |
88d1aa9d MM |
1461 | if (record_full_list->prev) |
1462 | record_full_list = record_full_list->prev; | |
d02ed0bb MM |
1463 | } |
1464 | else | |
1465 | { | |
88d1aa9d MM |
1466 | if (record_full_list->next) |
1467 | record_full_list = record_full_list->next; | |
d02ed0bb MM |
1468 | } |
1469 | } | |
1470 | } | |
1471 | while (continue_flag); | |
1472 | ||
1473 | replay_out: | |
88d1aa9d | 1474 | if (record_full_get_sig) |
d02ed0bb | 1475 | status->value.sig = GDB_SIGNAL_INT; |
88d1aa9d | 1476 | else if (record_full_list->u.end.sigval != GDB_SIGNAL_0) |
d02ed0bb | 1477 | /* FIXME: better way to check */ |
88d1aa9d | 1478 | status->value.sig = record_full_list->u.end.sigval; |
d02ed0bb MM |
1479 | else |
1480 | status->value.sig = GDB_SIGNAL_TRAP; | |
1481 | ||
1482 | discard_cleanups (old_cleanups); | |
1483 | } | |
1484 | ||
1485 | signal (SIGINT, handle_sigint); | |
1486 | ||
1487 | do_cleanups (set_cleanups); | |
1488 | return inferior_ptid; | |
1489 | } | |
1490 | ||
1491 | static ptid_t | |
88d1aa9d MM |
1492 | record_full_wait (struct target_ops *ops, |
1493 | ptid_t ptid, struct target_waitstatus *status, | |
1494 | int options) | |
d02ed0bb MM |
1495 | { |
1496 | ptid_t return_ptid; | |
1497 | ||
88d1aa9d | 1498 | return_ptid = record_full_wait_1 (ops, ptid, status, options); |
d02ed0bb MM |
1499 | if (status->kind != TARGET_WAITKIND_IGNORE) |
1500 | { | |
1501 | /* We're reporting a stop. Make sure any spurious | |
1502 | target_wait(WNOHANG) doesn't advance the target until the | |
1503 | core wants us resumed again. */ | |
88d1aa9d | 1504 | record_full_resumed = 0; |
d02ed0bb MM |
1505 | } |
1506 | return return_ptid; | |
1507 | } | |
1508 | ||
1509 | static int | |
88d1aa9d | 1510 | record_full_stopped_by_watchpoint (void) |
d02ed0bb | 1511 | { |
88d1aa9d MM |
1512 | if (RECORD_FULL_IS_REPLAY) |
1513 | return record_full_hw_watchpoint; | |
d02ed0bb | 1514 | else |
88d1aa9d | 1515 | return record_full_beneath_to_stopped_by_watchpoint (); |
d02ed0bb MM |
1516 | } |
1517 | ||
d02ed0bb | 1518 | static int |
88d1aa9d | 1519 | record_full_stopped_data_address (struct target_ops *ops, CORE_ADDR *addr_p) |
d02ed0bb | 1520 | { |
88d1aa9d | 1521 | if (RECORD_FULL_IS_REPLAY) |
d02ed0bb MM |
1522 | return 0; |
1523 | else | |
88d1aa9d | 1524 | return record_full_beneath_to_stopped_data_address (ops, addr_p); |
d02ed0bb MM |
1525 | } |
1526 | ||
1527 | /* Record registers change (by user or by GDB) to list as an instruction. */ | |
1528 | ||
1529 | static void | |
88d1aa9d | 1530 | record_full_registers_change (struct regcache *regcache, int regnum) |
d02ed0bb | 1531 | { |
88d1aa9d MM |
1532 | /* Check record_full_insn_num. */ |
1533 | record_full_check_insn_num (0); | |
d02ed0bb | 1534 | |
88d1aa9d MM |
1535 | record_full_arch_list_head = NULL; |
1536 | record_full_arch_list_tail = NULL; | |
d02ed0bb MM |
1537 | |
1538 | if (regnum < 0) | |
1539 | { | |
1540 | int i; | |
1541 | ||
1542 | for (i = 0; i < gdbarch_num_regs (get_regcache_arch (regcache)); i++) | |
1543 | { | |
25ea693b | 1544 | if (record_full_arch_list_add_reg (regcache, i)) |
d02ed0bb | 1545 | { |
88d1aa9d | 1546 | record_full_list_release (record_full_arch_list_tail); |
d02ed0bb MM |
1547 | error (_("Process record: failed to record execution log.")); |
1548 | } | |
1549 | } | |
1550 | } | |
1551 | else | |
1552 | { | |
25ea693b | 1553 | if (record_full_arch_list_add_reg (regcache, regnum)) |
d02ed0bb | 1554 | { |
88d1aa9d | 1555 | record_full_list_release (record_full_arch_list_tail); |
d02ed0bb MM |
1556 | error (_("Process record: failed to record execution log.")); |
1557 | } | |
1558 | } | |
25ea693b | 1559 | if (record_full_arch_list_add_end ()) |
d02ed0bb | 1560 | { |
88d1aa9d | 1561 | record_full_list_release (record_full_arch_list_tail); |
d02ed0bb MM |
1562 | error (_("Process record: failed to record execution log.")); |
1563 | } | |
88d1aa9d MM |
1564 | record_full_list->next = record_full_arch_list_head; |
1565 | record_full_arch_list_head->prev = record_full_list; | |
1566 | record_full_list = record_full_arch_list_tail; | |
d02ed0bb | 1567 | |
7ee70bf5 | 1568 | if (record_full_insn_num == record_full_insn_max_num) |
88d1aa9d | 1569 | record_full_list_release_first (); |
d02ed0bb | 1570 | else |
88d1aa9d | 1571 | record_full_insn_num++; |
d02ed0bb MM |
1572 | } |
1573 | ||
1574 | /* "to_store_registers" method for process record target. */ | |
1575 | ||
1576 | static void | |
88d1aa9d MM |
1577 | record_full_store_registers (struct target_ops *ops, |
1578 | struct regcache *regcache, | |
1579 | int regno) | |
d02ed0bb | 1580 | { |
88d1aa9d | 1581 | if (!record_full_gdb_operation_disable) |
d02ed0bb | 1582 | { |
88d1aa9d | 1583 | if (RECORD_FULL_IS_REPLAY) |
d02ed0bb MM |
1584 | { |
1585 | int n; | |
1586 | ||
1587 | /* Let user choose if he wants to write register or not. */ | |
1588 | if (regno < 0) | |
1589 | n = | |
1590 | query (_("Because GDB is in replay mode, changing the " | |
1591 | "value of a register will make the execution " | |
1592 | "log unusable from this point onward. " | |
1593 | "Change all registers?")); | |
1594 | else | |
1595 | n = | |
1596 | query (_("Because GDB is in replay mode, changing the value " | |
1597 | "of a register will make the execution log unusable " | |
1598 | "from this point onward. Change register %s?"), | |
1599 | gdbarch_register_name (get_regcache_arch (regcache), | |
1600 | regno)); | |
1601 | ||
1602 | if (!n) | |
1603 | { | |
1604 | /* Invalidate the value of regcache that was set in function | |
1605 | "regcache_raw_write". */ | |
1606 | if (regno < 0) | |
1607 | { | |
1608 | int i; | |
1609 | ||
1610 | for (i = 0; | |
1611 | i < gdbarch_num_regs (get_regcache_arch (regcache)); | |
1612 | i++) | |
1613 | regcache_invalidate (regcache, i); | |
1614 | } | |
1615 | else | |
1616 | regcache_invalidate (regcache, regno); | |
1617 | ||
1618 | error (_("Process record canceled the operation.")); | |
1619 | } | |
1620 | ||
1621 | /* Destroy the record from here forward. */ | |
88d1aa9d | 1622 | record_full_list_release_following (record_full_list); |
d02ed0bb MM |
1623 | } |
1624 | ||
88d1aa9d | 1625 | record_full_registers_change (regcache, regno); |
d02ed0bb | 1626 | } |
88d1aa9d MM |
1627 | record_full_beneath_to_store_registers |
1628 | (record_full_beneath_to_store_registers_ops, regcache, regno); | |
d02ed0bb MM |
1629 | } |
1630 | ||
88d1aa9d MM |
1631 | /* "to_xfer_partial" method. Behavior is conditional on |
1632 | RECORD_FULL_IS_REPLAY. | |
d02ed0bb MM |
1633 | In replay mode, we cannot write memory unles we are willing to |
1634 | invalidate the record/replay log from this point forward. */ | |
1635 | ||
1636 | static LONGEST | |
88d1aa9d MM |
1637 | record_full_xfer_partial (struct target_ops *ops, enum target_object object, |
1638 | const char *annex, gdb_byte *readbuf, | |
1639 | const gdb_byte *writebuf, ULONGEST offset, | |
b55e14c7 | 1640 | ULONGEST len) |
d02ed0bb | 1641 | { |
88d1aa9d | 1642 | if (!record_full_gdb_operation_disable |
d02ed0bb MM |
1643 | && (object == TARGET_OBJECT_MEMORY |
1644 | || object == TARGET_OBJECT_RAW_MEMORY) && writebuf) | |
1645 | { | |
88d1aa9d | 1646 | if (RECORD_FULL_IS_REPLAY) |
d02ed0bb MM |
1647 | { |
1648 | /* Let user choose if he wants to write memory or not. */ | |
1649 | if (!query (_("Because GDB is in replay mode, writing to memory " | |
1650 | "will make the execution log unusable from this " | |
1651 | "point onward. Write memory at address %s?"), | |
1652 | paddress (target_gdbarch (), offset))) | |
1653 | error (_("Process record canceled the operation.")); | |
1654 | ||
1655 | /* Destroy the record from here forward. */ | |
88d1aa9d | 1656 | record_full_list_release_following (record_full_list); |
d02ed0bb MM |
1657 | } |
1658 | ||
88d1aa9d MM |
1659 | /* Check record_full_insn_num */ |
1660 | record_full_check_insn_num (0); | |
d02ed0bb MM |
1661 | |
1662 | /* Record registers change to list as an instruction. */ | |
88d1aa9d MM |
1663 | record_full_arch_list_head = NULL; |
1664 | record_full_arch_list_tail = NULL; | |
25ea693b | 1665 | if (record_full_arch_list_add_mem (offset, len)) |
d02ed0bb | 1666 | { |
88d1aa9d | 1667 | record_full_list_release (record_full_arch_list_tail); |
d02ed0bb MM |
1668 | if (record_debug) |
1669 | fprintf_unfiltered (gdb_stdlog, | |
1670 | "Process record: failed to record " | |
1671 | "execution log."); | |
1672 | return -1; | |
1673 | } | |
25ea693b | 1674 | if (record_full_arch_list_add_end ()) |
d02ed0bb | 1675 | { |
88d1aa9d | 1676 | record_full_list_release (record_full_arch_list_tail); |
d02ed0bb MM |
1677 | if (record_debug) |
1678 | fprintf_unfiltered (gdb_stdlog, | |
1679 | "Process record: failed to record " | |
1680 | "execution log."); | |
1681 | return -1; | |
1682 | } | |
88d1aa9d MM |
1683 | record_full_list->next = record_full_arch_list_head; |
1684 | record_full_arch_list_head->prev = record_full_list; | |
1685 | record_full_list = record_full_arch_list_tail; | |
d02ed0bb | 1686 | |
7ee70bf5 | 1687 | if (record_full_insn_num == record_full_insn_max_num) |
88d1aa9d | 1688 | record_full_list_release_first (); |
d02ed0bb | 1689 | else |
88d1aa9d | 1690 | record_full_insn_num++; |
d02ed0bb MM |
1691 | } |
1692 | ||
88d1aa9d MM |
1693 | return record_full_beneath_to_xfer_partial |
1694 | (record_full_beneath_to_xfer_partial_ops, object, annex, | |
1695 | readbuf, writebuf, offset, len); | |
d02ed0bb MM |
1696 | } |
1697 | ||
1698 | /* This structure represents a breakpoint inserted while the record | |
1699 | target is active. We use this to know when to install/remove | |
1700 | breakpoints in/from the target beneath. For example, a breakpoint | |
1701 | may be inserted while recording, but removed when not replaying nor | |
1702 | recording. In that case, the breakpoint had not been inserted on | |
1703 | the target beneath, so we should not try to remove it there. */ | |
1704 | ||
88d1aa9d | 1705 | struct record_full_breakpoint |
d02ed0bb MM |
1706 | { |
1707 | /* The address and address space the breakpoint was set at. */ | |
1708 | struct address_space *address_space; | |
1709 | CORE_ADDR addr; | |
1710 | ||
1711 | /* True when the breakpoint has been also installed in the target | |
1712 | beneath. This will be false for breakpoints set during replay or | |
1713 | when recording. */ | |
1714 | int in_target_beneath; | |
1715 | }; | |
1716 | ||
88d1aa9d MM |
1717 | typedef struct record_full_breakpoint *record_full_breakpoint_p; |
1718 | DEF_VEC_P(record_full_breakpoint_p); | |
d02ed0bb MM |
1719 | |
1720 | /* The list of breakpoints inserted while the record target is | |
1721 | active. */ | |
88d1aa9d | 1722 | VEC(record_full_breakpoint_p) *record_full_breakpoints = NULL; |
d02ed0bb MM |
1723 | |
1724 | static void | |
88d1aa9d | 1725 | record_full_sync_record_breakpoints (struct bp_location *loc, void *data) |
d02ed0bb MM |
1726 | { |
1727 | if (loc->loc_type != bp_loc_software_breakpoint) | |
1728 | return; | |
1729 | ||
1730 | if (loc->inserted) | |
1731 | { | |
88d1aa9d | 1732 | struct record_full_breakpoint *bp = XNEW (struct record_full_breakpoint); |
d02ed0bb MM |
1733 | |
1734 | bp->addr = loc->target_info.placed_address; | |
1735 | bp->address_space = loc->target_info.placed_address_space; | |
1736 | ||
1737 | bp->in_target_beneath = 1; | |
1738 | ||
88d1aa9d | 1739 | VEC_safe_push (record_full_breakpoint_p, record_full_breakpoints, bp); |
d02ed0bb MM |
1740 | } |
1741 | } | |
1742 | ||
88d1aa9d | 1743 | /* Sync existing breakpoints to record_full_breakpoints. */ |
d02ed0bb MM |
1744 | |
1745 | static void | |
88d1aa9d | 1746 | record_full_init_record_breakpoints (void) |
d02ed0bb | 1747 | { |
88d1aa9d | 1748 | VEC_free (record_full_breakpoint_p, record_full_breakpoints); |
d02ed0bb | 1749 | |
88d1aa9d | 1750 | iterate_over_bp_locations (record_full_sync_record_breakpoints); |
d02ed0bb MM |
1751 | } |
1752 | ||
88d1aa9d | 1753 | /* Behavior is conditional on RECORD_FULL_IS_REPLAY. We will not actually |
d02ed0bb MM |
1754 | insert or remove breakpoints in the real target when replaying, nor |
1755 | when recording. */ | |
1756 | ||
1757 | static int | |
88d1aa9d MM |
1758 | record_full_insert_breakpoint (struct gdbarch *gdbarch, |
1759 | struct bp_target_info *bp_tgt) | |
d02ed0bb | 1760 | { |
88d1aa9d | 1761 | struct record_full_breakpoint *bp; |
d02ed0bb MM |
1762 | int in_target_beneath = 0; |
1763 | ||
88d1aa9d | 1764 | if (!RECORD_FULL_IS_REPLAY) |
d02ed0bb MM |
1765 | { |
1766 | /* When recording, we currently always single-step, so we don't | |
1767 | really need to install regular breakpoints in the inferior. | |
1768 | However, we do have to insert software single-step | |
1769 | breakpoints, in case the target can't hardware step. To keep | |
1770 | things single, we always insert. */ | |
1771 | struct cleanup *old_cleanups; | |
1772 | int ret; | |
1773 | ||
25ea693b | 1774 | old_cleanups = record_full_gdb_operation_disable_set (); |
88d1aa9d | 1775 | ret = record_full_beneath_to_insert_breakpoint (gdbarch, bp_tgt); |
d02ed0bb MM |
1776 | do_cleanups (old_cleanups); |
1777 | ||
1778 | if (ret != 0) | |
1779 | return ret; | |
1780 | ||
1781 | in_target_beneath = 1; | |
1782 | } | |
1783 | ||
88d1aa9d | 1784 | bp = XNEW (struct record_full_breakpoint); |
d02ed0bb MM |
1785 | bp->addr = bp_tgt->placed_address; |
1786 | bp->address_space = bp_tgt->placed_address_space; | |
1787 | bp->in_target_beneath = in_target_beneath; | |
88d1aa9d | 1788 | VEC_safe_push (record_full_breakpoint_p, record_full_breakpoints, bp); |
d02ed0bb MM |
1789 | return 0; |
1790 | } | |
1791 | ||
1792 | /* "to_remove_breakpoint" method for process record target. */ | |
1793 | ||
1794 | static int | |
88d1aa9d MM |
1795 | record_full_remove_breakpoint (struct gdbarch *gdbarch, |
1796 | struct bp_target_info *bp_tgt) | |
d02ed0bb | 1797 | { |
88d1aa9d | 1798 | struct record_full_breakpoint *bp; |
d02ed0bb MM |
1799 | int ix; |
1800 | ||
1801 | for (ix = 0; | |
88d1aa9d MM |
1802 | VEC_iterate (record_full_breakpoint_p, |
1803 | record_full_breakpoints, ix, bp); | |
d02ed0bb MM |
1804 | ++ix) |
1805 | { | |
1806 | if (bp->addr == bp_tgt->placed_address | |
1807 | && bp->address_space == bp_tgt->placed_address_space) | |
1808 | { | |
1809 | if (bp->in_target_beneath) | |
1810 | { | |
1811 | struct cleanup *old_cleanups; | |
1812 | int ret; | |
1813 | ||
25ea693b | 1814 | old_cleanups = record_full_gdb_operation_disable_set (); |
88d1aa9d | 1815 | ret = record_full_beneath_to_remove_breakpoint (gdbarch, bp_tgt); |
d02ed0bb MM |
1816 | do_cleanups (old_cleanups); |
1817 | ||
1818 | if (ret != 0) | |
1819 | return ret; | |
1820 | } | |
1821 | ||
88d1aa9d MM |
1822 | VEC_unordered_remove (record_full_breakpoint_p, |
1823 | record_full_breakpoints, ix); | |
d02ed0bb MM |
1824 | return 0; |
1825 | } | |
1826 | } | |
1827 | ||
1828 | gdb_assert_not_reached ("removing unknown breakpoint"); | |
1829 | } | |
1830 | ||
1831 | /* "to_can_execute_reverse" method for process record target. */ | |
1832 | ||
1833 | static int | |
88d1aa9d | 1834 | record_full_can_execute_reverse (void) |
d02ed0bb MM |
1835 | { |
1836 | return 1; | |
1837 | } | |
1838 | ||
1839 | /* "to_get_bookmark" method for process record and prec over core. */ | |
1840 | ||
1841 | static gdb_byte * | |
88d1aa9d | 1842 | record_full_get_bookmark (char *args, int from_tty) |
d02ed0bb | 1843 | { |
0f928d68 | 1844 | char *ret = NULL; |
d02ed0bb MM |
1845 | |
1846 | /* Return stringified form of instruction count. */ | |
88d1aa9d MM |
1847 | if (record_full_list && record_full_list->type == record_full_end) |
1848 | ret = xstrdup (pulongest (record_full_list->u.end.insn_num)); | |
d02ed0bb MM |
1849 | |
1850 | if (record_debug) | |
1851 | { | |
1852 | if (ret) | |
1853 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d | 1854 | "record_full_get_bookmark returns %s\n", ret); |
d02ed0bb MM |
1855 | else |
1856 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d | 1857 | "record_full_get_bookmark returns NULL\n"); |
d02ed0bb | 1858 | } |
0f928d68 | 1859 | return (gdb_byte *) ret; |
d02ed0bb MM |
1860 | } |
1861 | ||
1862 | /* "to_goto_bookmark" method for process record and prec over core. */ | |
1863 | ||
1864 | static void | |
0f928d68 | 1865 | record_full_goto_bookmark (gdb_byte *raw_bookmark, int from_tty) |
d02ed0bb | 1866 | { |
0f928d68 PA |
1867 | char *bookmark = (char *) raw_bookmark; |
1868 | ||
d02ed0bb MM |
1869 | if (record_debug) |
1870 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d | 1871 | "record_full_goto_bookmark receives %s\n", bookmark); |
d02ed0bb MM |
1872 | |
1873 | if (bookmark[0] == '\'' || bookmark[0] == '\"') | |
1874 | { | |
1875 | if (bookmark[strlen (bookmark) - 1] != bookmark[0]) | |
1876 | error (_("Unbalanced quotes: %s"), bookmark); | |
1877 | ||
1878 | /* Strip trailing quote. */ | |
1879 | bookmark[strlen (bookmark) - 1] = '\0'; | |
1880 | /* Strip leading quote. */ | |
1881 | bookmark++; | |
88d1aa9d | 1882 | /* Pass along to cmd_record_full_goto. */ |
d02ed0bb MM |
1883 | } |
1884 | ||
0f928d68 | 1885 | cmd_record_goto (bookmark, from_tty); |
d02ed0bb MM |
1886 | return; |
1887 | } | |
1888 | ||
1889 | static void | |
88d1aa9d MM |
1890 | record_full_async (void (*callback) (enum inferior_event_type event_type, |
1891 | void *context), void *context) | |
d02ed0bb MM |
1892 | { |
1893 | /* If we're on top of a line target (e.g., linux-nat, remote), then | |
1894 | set it to async mode as well. Will be NULL if we're sitting on | |
1895 | top of the core target, for "record restore". */ | |
88d1aa9d MM |
1896 | if (record_full_beneath_to_async != NULL) |
1897 | record_full_beneath_to_async (callback, context); | |
d02ed0bb MM |
1898 | } |
1899 | ||
1900 | static int | |
88d1aa9d | 1901 | record_full_can_async_p (void) |
d02ed0bb MM |
1902 | { |
1903 | /* We only enable async when the user specifically asks for it. */ | |
1904 | return target_async_permitted; | |
1905 | } | |
1906 | ||
1907 | static int | |
88d1aa9d | 1908 | record_full_is_async_p (void) |
d02ed0bb MM |
1909 | { |
1910 | /* We only enable async when the user specifically asks for it. */ | |
1911 | return target_async_permitted; | |
1912 | } | |
1913 | ||
1914 | static enum exec_direction_kind | |
88d1aa9d | 1915 | record_full_execution_direction (void) |
d02ed0bb | 1916 | { |
88d1aa9d | 1917 | return record_full_execution_dir; |
d02ed0bb MM |
1918 | } |
1919 | ||
1920 | static void | |
88d1aa9d | 1921 | record_full_info (void) |
d02ed0bb | 1922 | { |
88d1aa9d | 1923 | struct record_full_entry *p; |
d02ed0bb | 1924 | |
88d1aa9d | 1925 | if (RECORD_FULL_IS_REPLAY) |
d02ed0bb MM |
1926 | printf_filtered (_("Replay mode:\n")); |
1927 | else | |
1928 | printf_filtered (_("Record mode:\n")); | |
1929 | ||
1930 | /* Find entry for first actual instruction in the log. */ | |
88d1aa9d MM |
1931 | for (p = record_full_first.next; |
1932 | p != NULL && p->type != record_full_end; | |
d02ed0bb MM |
1933 | p = p->next) |
1934 | ; | |
1935 | ||
1936 | /* Do we have a log at all? */ | |
88d1aa9d | 1937 | if (p != NULL && p->type == record_full_end) |
d02ed0bb MM |
1938 | { |
1939 | /* Display instruction number for first instruction in the log. */ | |
1940 | printf_filtered (_("Lowest recorded instruction number is %s.\n"), | |
1941 | pulongest (p->u.end.insn_num)); | |
1942 | ||
1943 | /* If in replay mode, display where we are in the log. */ | |
88d1aa9d | 1944 | if (RECORD_FULL_IS_REPLAY) |
d02ed0bb | 1945 | printf_filtered (_("Current instruction number is %s.\n"), |
88d1aa9d | 1946 | pulongest (record_full_list->u.end.insn_num)); |
d02ed0bb MM |
1947 | |
1948 | /* Display instruction number for last instruction in the log. */ | |
1949 | printf_filtered (_("Highest recorded instruction number is %s.\n"), | |
88d1aa9d | 1950 | pulongest (record_full_insn_count)); |
d02ed0bb MM |
1951 | |
1952 | /* Display log count. */ | |
7ee70bf5 | 1953 | printf_filtered (_("Log contains %u instructions.\n"), |
88d1aa9d | 1954 | record_full_insn_num); |
d02ed0bb MM |
1955 | } |
1956 | else | |
1957 | printf_filtered (_("No instructions have been logged.\n")); | |
1958 | ||
1959 | /* Display max log size. */ | |
7ee70bf5 | 1960 | printf_filtered (_("Max logged instructions is %u.\n"), |
88d1aa9d | 1961 | record_full_insn_max_num); |
d02ed0bb MM |
1962 | } |
1963 | ||
1964 | /* The "to_record_delete" target method. */ | |
1965 | ||
1966 | static void | |
88d1aa9d | 1967 | record_full_delete (void) |
d02ed0bb | 1968 | { |
88d1aa9d | 1969 | record_full_list_release_following (record_full_list); |
d02ed0bb MM |
1970 | } |
1971 | ||
1972 | /* The "to_record_is_replaying" target method. */ | |
1973 | ||
1974 | static int | |
88d1aa9d | 1975 | record_full_is_replaying (void) |
d02ed0bb | 1976 | { |
88d1aa9d | 1977 | return RECORD_FULL_IS_REPLAY; |
d02ed0bb MM |
1978 | } |
1979 | ||
1980 | /* Go to a specific entry. */ | |
1981 | ||
1982 | static void | |
88d1aa9d | 1983 | record_full_goto_entry (struct record_full_entry *p) |
d02ed0bb MM |
1984 | { |
1985 | if (p == NULL) | |
1986 | error (_("Target insn not found.")); | |
88d1aa9d | 1987 | else if (p == record_full_list) |
d02ed0bb | 1988 | error (_("Already at target insn.")); |
88d1aa9d | 1989 | else if (p->u.end.insn_num > record_full_list->u.end.insn_num) |
d02ed0bb MM |
1990 | { |
1991 | printf_filtered (_("Go forward to insn number %s\n"), | |
1992 | pulongest (p->u.end.insn_num)); | |
88d1aa9d | 1993 | record_full_goto_insn (p, EXEC_FORWARD); |
d02ed0bb MM |
1994 | } |
1995 | else | |
1996 | { | |
1997 | printf_filtered (_("Go backward to insn number %s\n"), | |
1998 | pulongest (p->u.end.insn_num)); | |
88d1aa9d | 1999 | record_full_goto_insn (p, EXEC_REVERSE); |
d02ed0bb MM |
2000 | } |
2001 | ||
2002 | registers_changed (); | |
2003 | reinit_frame_cache (); | |
08d72866 | 2004 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
d02ed0bb MM |
2005 | } |
2006 | ||
2007 | /* The "to_goto_record_begin" target method. */ | |
2008 | ||
2009 | static void | |
88d1aa9d | 2010 | record_full_goto_begin (void) |
d02ed0bb | 2011 | { |
88d1aa9d | 2012 | struct record_full_entry *p = NULL; |
d02ed0bb | 2013 | |
88d1aa9d MM |
2014 | for (p = &record_full_first; p != NULL; p = p->next) |
2015 | if (p->type == record_full_end) | |
d02ed0bb MM |
2016 | break; |
2017 | ||
88d1aa9d | 2018 | record_full_goto_entry (p); |
d02ed0bb MM |
2019 | } |
2020 | ||
2021 | /* The "to_goto_record_end" target method. */ | |
2022 | ||
2023 | static void | |
88d1aa9d | 2024 | record_full_goto_end (void) |
d02ed0bb | 2025 | { |
88d1aa9d | 2026 | struct record_full_entry *p = NULL; |
d02ed0bb | 2027 | |
88d1aa9d | 2028 | for (p = record_full_list; p->next != NULL; p = p->next) |
d02ed0bb MM |
2029 | ; |
2030 | for (; p!= NULL; p = p->prev) | |
88d1aa9d | 2031 | if (p->type == record_full_end) |
d02ed0bb MM |
2032 | break; |
2033 | ||
88d1aa9d | 2034 | record_full_goto_entry (p); |
d02ed0bb MM |
2035 | } |
2036 | ||
2037 | /* The "to_goto_record" target method. */ | |
2038 | ||
2039 | static void | |
88d1aa9d | 2040 | record_full_goto (ULONGEST target_insn) |
d02ed0bb | 2041 | { |
88d1aa9d | 2042 | struct record_full_entry *p = NULL; |
d02ed0bb | 2043 | |
88d1aa9d MM |
2044 | for (p = &record_full_first; p != NULL; p = p->next) |
2045 | if (p->type == record_full_end && p->u.end.insn_num == target_insn) | |
d02ed0bb MM |
2046 | break; |
2047 | ||
88d1aa9d | 2048 | record_full_goto_entry (p); |
d02ed0bb MM |
2049 | } |
2050 | ||
2051 | static void | |
88d1aa9d | 2052 | init_record_full_ops (void) |
d02ed0bb | 2053 | { |
88d1aa9d MM |
2054 | record_full_ops.to_shortname = "record-full"; |
2055 | record_full_ops.to_longname = "Process record and replay target"; | |
2056 | record_full_ops.to_doc = | |
d02ed0bb | 2057 | "Log program while executing and replay execution from log."; |
88d1aa9d MM |
2058 | record_full_ops.to_open = record_full_open; |
2059 | record_full_ops.to_close = record_full_close; | |
2060 | record_full_ops.to_resume = record_full_resume; | |
2061 | record_full_ops.to_wait = record_full_wait; | |
7c1687a9 MM |
2062 | record_full_ops.to_disconnect = record_disconnect; |
2063 | record_full_ops.to_detach = record_detach; | |
2064 | record_full_ops.to_mourn_inferior = record_mourn_inferior; | |
2065 | record_full_ops.to_kill = record_kill; | |
88d1aa9d MM |
2066 | record_full_ops.to_create_inferior = find_default_create_inferior; |
2067 | record_full_ops.to_store_registers = record_full_store_registers; | |
2068 | record_full_ops.to_xfer_partial = record_full_xfer_partial; | |
2069 | record_full_ops.to_insert_breakpoint = record_full_insert_breakpoint; | |
2070 | record_full_ops.to_remove_breakpoint = record_full_remove_breakpoint; | |
2071 | record_full_ops.to_stopped_by_watchpoint = record_full_stopped_by_watchpoint; | |
2072 | record_full_ops.to_stopped_data_address = record_full_stopped_data_address; | |
2073 | record_full_ops.to_can_execute_reverse = record_full_can_execute_reverse; | |
2074 | record_full_ops.to_stratum = record_stratum; | |
d02ed0bb | 2075 | /* Add bookmark target methods. */ |
88d1aa9d MM |
2076 | record_full_ops.to_get_bookmark = record_full_get_bookmark; |
2077 | record_full_ops.to_goto_bookmark = record_full_goto_bookmark; | |
2078 | record_full_ops.to_async = record_full_async; | |
2079 | record_full_ops.to_can_async_p = record_full_can_async_p; | |
2080 | record_full_ops.to_is_async_p = record_full_is_async_p; | |
2081 | record_full_ops.to_execution_direction = record_full_execution_direction; | |
2082 | record_full_ops.to_info_record = record_full_info; | |
2083 | record_full_ops.to_save_record = record_full_save; | |
2084 | record_full_ops.to_delete_record = record_full_delete; | |
2085 | record_full_ops.to_record_is_replaying = record_full_is_replaying; | |
2086 | record_full_ops.to_goto_record_begin = record_full_goto_begin; | |
2087 | record_full_ops.to_goto_record_end = record_full_goto_end; | |
2088 | record_full_ops.to_goto_record = record_full_goto; | |
2089 | record_full_ops.to_magic = OPS_MAGIC; | |
d02ed0bb MM |
2090 | } |
2091 | ||
2092 | /* "to_resume" method for prec over corefile. */ | |
2093 | ||
2094 | static void | |
88d1aa9d MM |
2095 | record_full_core_resume (struct target_ops *ops, ptid_t ptid, int step, |
2096 | enum gdb_signal signal) | |
d02ed0bb | 2097 | { |
88d1aa9d MM |
2098 | record_full_resume_step = step; |
2099 | record_full_resumed = 1; | |
2100 | record_full_execution_dir = execution_direction; | |
d02ed0bb MM |
2101 | |
2102 | /* We are about to start executing the inferior (or simulate it), | |
2103 | let's register it with the event loop. */ | |
2104 | if (target_can_async_p ()) | |
2105 | { | |
2106 | target_async (inferior_event_handler, 0); | |
2107 | ||
2108 | /* Notify the event loop there's an event to wait for. */ | |
88d1aa9d | 2109 | mark_async_event_handler (record_full_async_inferior_event_token); |
d02ed0bb MM |
2110 | } |
2111 | } | |
2112 | ||
2113 | /* "to_kill" method for prec over corefile. */ | |
2114 | ||
2115 | static void | |
88d1aa9d | 2116 | record_full_core_kill (struct target_ops *ops) |
d02ed0bb MM |
2117 | { |
2118 | if (record_debug) | |
88d1aa9d | 2119 | fprintf_unfiltered (gdb_stdlog, "Process record: record_full_core_kill\n"); |
d02ed0bb | 2120 | |
88d1aa9d | 2121 | unpush_target (&record_full_core_ops); |
d02ed0bb MM |
2122 | } |
2123 | ||
2124 | /* "to_fetch_registers" method for prec over corefile. */ | |
2125 | ||
2126 | static void | |
88d1aa9d MM |
2127 | record_full_core_fetch_registers (struct target_ops *ops, |
2128 | struct regcache *regcache, | |
2129 | int regno) | |
d02ed0bb MM |
2130 | { |
2131 | if (regno < 0) | |
2132 | { | |
2133 | int num = gdbarch_num_regs (get_regcache_arch (regcache)); | |
2134 | int i; | |
2135 | ||
2136 | for (i = 0; i < num; i ++) | |
2137 | regcache_raw_supply (regcache, i, | |
88d1aa9d | 2138 | record_full_core_regbuf + MAX_REGISTER_SIZE * i); |
d02ed0bb MM |
2139 | } |
2140 | else | |
2141 | regcache_raw_supply (regcache, regno, | |
88d1aa9d | 2142 | record_full_core_regbuf + MAX_REGISTER_SIZE * regno); |
d02ed0bb MM |
2143 | } |
2144 | ||
2145 | /* "to_prepare_to_store" method for prec over corefile. */ | |
2146 | ||
2147 | static void | |
f32dbf8c MM |
2148 | record_full_core_prepare_to_store (struct target_ops *self, |
2149 | struct regcache *regcache) | |
d02ed0bb MM |
2150 | { |
2151 | } | |
2152 | ||
2153 | /* "to_store_registers" method for prec over corefile. */ | |
2154 | ||
2155 | static void | |
88d1aa9d | 2156 | record_full_core_store_registers (struct target_ops *ops, |
d02ed0bb MM |
2157 | struct regcache *regcache, |
2158 | int regno) | |
2159 | { | |
88d1aa9d | 2160 | if (record_full_gdb_operation_disable) |
d02ed0bb | 2161 | regcache_raw_collect (regcache, regno, |
88d1aa9d | 2162 | record_full_core_regbuf + MAX_REGISTER_SIZE * regno); |
d02ed0bb MM |
2163 | else |
2164 | error (_("You can't do that without a process to debug.")); | |
2165 | } | |
2166 | ||
2167 | /* "to_xfer_partial" method for prec over corefile. */ | |
2168 | ||
2169 | static LONGEST | |
88d1aa9d MM |
2170 | record_full_core_xfer_partial (struct target_ops *ops, |
2171 | enum target_object object, | |
2172 | const char *annex, gdb_byte *readbuf, | |
2173 | const gdb_byte *writebuf, ULONGEST offset, | |
b55e14c7 | 2174 | ULONGEST len) |
d02ed0bb MM |
2175 | { |
2176 | if (object == TARGET_OBJECT_MEMORY) | |
2177 | { | |
88d1aa9d | 2178 | if (record_full_gdb_operation_disable || !writebuf) |
d02ed0bb MM |
2179 | { |
2180 | struct target_section *p; | |
2181 | ||
88d1aa9d | 2182 | for (p = record_full_core_start; p < record_full_core_end; p++) |
d02ed0bb MM |
2183 | { |
2184 | if (offset >= p->addr) | |
2185 | { | |
88d1aa9d | 2186 | struct record_full_core_buf_entry *entry; |
d02ed0bb MM |
2187 | ULONGEST sec_offset; |
2188 | ||
2189 | if (offset >= p->endaddr) | |
2190 | continue; | |
2191 | ||
2192 | if (offset + len > p->endaddr) | |
2193 | len = p->endaddr - offset; | |
2194 | ||
2195 | sec_offset = offset - p->addr; | |
2196 | ||
2197 | /* Read readbuf or write writebuf p, offset, len. */ | |
2198 | /* Check flags. */ | |
2199 | if (p->the_bfd_section->flags & SEC_CONSTRUCTOR | |
2200 | || (p->the_bfd_section->flags & SEC_HAS_CONTENTS) == 0) | |
2201 | { | |
2202 | if (readbuf) | |
2203 | memset (readbuf, 0, len); | |
2204 | return len; | |
2205 | } | |
88d1aa9d MM |
2206 | /* Get record_full_core_buf_entry. */ |
2207 | for (entry = record_full_core_buf_list; entry; | |
d02ed0bb MM |
2208 | entry = entry->prev) |
2209 | if (entry->p == p) | |
2210 | break; | |
2211 | if (writebuf) | |
2212 | { | |
2213 | if (!entry) | |
2214 | { | |
2215 | /* Add a new entry. */ | |
88d1aa9d MM |
2216 | entry = (struct record_full_core_buf_entry *) |
2217 | xmalloc | |
2218 | (sizeof (struct record_full_core_buf_entry)); | |
d02ed0bb | 2219 | entry->p = p; |
2b2848e2 DE |
2220 | if (!bfd_malloc_and_get_section |
2221 | (p->the_bfd_section->owner, | |
2222 | p->the_bfd_section, | |
2223 | &entry->buf)) | |
d02ed0bb MM |
2224 | { |
2225 | xfree (entry); | |
2226 | return 0; | |
2227 | } | |
88d1aa9d MM |
2228 | entry->prev = record_full_core_buf_list; |
2229 | record_full_core_buf_list = entry; | |
d02ed0bb MM |
2230 | } |
2231 | ||
2232 | memcpy (entry->buf + sec_offset, writebuf, | |
2233 | (size_t) len); | |
2234 | } | |
2235 | else | |
2236 | { | |
2237 | if (!entry) | |
88d1aa9d MM |
2238 | return record_full_beneath_to_xfer_partial |
2239 | (record_full_beneath_to_xfer_partial_ops, | |
d02ed0bb MM |
2240 | object, annex, readbuf, writebuf, |
2241 | offset, len); | |
2242 | ||
2243 | memcpy (readbuf, entry->buf + sec_offset, | |
2244 | (size_t) len); | |
2245 | } | |
2246 | ||
2247 | return len; | |
2248 | } | |
2249 | } | |
2250 | ||
2251 | return -1; | |
2252 | } | |
2253 | else | |
2254 | error (_("You can't do that without a process to debug.")); | |
2255 | } | |
2256 | ||
88d1aa9d MM |
2257 | return record_full_beneath_to_xfer_partial |
2258 | (record_full_beneath_to_xfer_partial_ops, object, annex, | |
2259 | readbuf, writebuf, offset, len); | |
d02ed0bb MM |
2260 | } |
2261 | ||
2262 | /* "to_insert_breakpoint" method for prec over corefile. */ | |
2263 | ||
2264 | static int | |
88d1aa9d MM |
2265 | record_full_core_insert_breakpoint (struct gdbarch *gdbarch, |
2266 | struct bp_target_info *bp_tgt) | |
d02ed0bb MM |
2267 | { |
2268 | return 0; | |
2269 | } | |
2270 | ||
2271 | /* "to_remove_breakpoint" method for prec over corefile. */ | |
2272 | ||
2273 | static int | |
88d1aa9d MM |
2274 | record_full_core_remove_breakpoint (struct gdbarch *gdbarch, |
2275 | struct bp_target_info *bp_tgt) | |
d02ed0bb MM |
2276 | { |
2277 | return 0; | |
2278 | } | |
2279 | ||
2280 | /* "to_has_execution" method for prec over corefile. */ | |
2281 | ||
2282 | static int | |
88d1aa9d | 2283 | record_full_core_has_execution (struct target_ops *ops, ptid_t the_ptid) |
d02ed0bb MM |
2284 | { |
2285 | return 1; | |
2286 | } | |
2287 | ||
2288 | static void | |
88d1aa9d | 2289 | init_record_full_core_ops (void) |
d02ed0bb | 2290 | { |
88d1aa9d MM |
2291 | record_full_core_ops.to_shortname = "record-core"; |
2292 | record_full_core_ops.to_longname = "Process record and replay target"; | |
2293 | record_full_core_ops.to_doc = | |
d02ed0bb | 2294 | "Log program while executing and replay execution from log."; |
88d1aa9d MM |
2295 | record_full_core_ops.to_open = record_full_open; |
2296 | record_full_core_ops.to_close = record_full_close; | |
2297 | record_full_core_ops.to_resume = record_full_core_resume; | |
2298 | record_full_core_ops.to_wait = record_full_wait; | |
2299 | record_full_core_ops.to_kill = record_full_core_kill; | |
2300 | record_full_core_ops.to_fetch_registers = record_full_core_fetch_registers; | |
2301 | record_full_core_ops.to_prepare_to_store = record_full_core_prepare_to_store; | |
2302 | record_full_core_ops.to_store_registers = record_full_core_store_registers; | |
2303 | record_full_core_ops.to_xfer_partial = record_full_core_xfer_partial; | |
2304 | record_full_core_ops.to_insert_breakpoint | |
2305 | = record_full_core_insert_breakpoint; | |
2306 | record_full_core_ops.to_remove_breakpoint | |
2307 | = record_full_core_remove_breakpoint; | |
2308 | record_full_core_ops.to_stopped_by_watchpoint | |
2309 | = record_full_stopped_by_watchpoint; | |
2310 | record_full_core_ops.to_stopped_data_address | |
2311 | = record_full_stopped_data_address; | |
2312 | record_full_core_ops.to_can_execute_reverse | |
2313 | = record_full_can_execute_reverse; | |
2314 | record_full_core_ops.to_has_execution = record_full_core_has_execution; | |
2315 | record_full_core_ops.to_stratum = record_stratum; | |
d02ed0bb | 2316 | /* Add bookmark target methods. */ |
88d1aa9d MM |
2317 | record_full_core_ops.to_get_bookmark = record_full_get_bookmark; |
2318 | record_full_core_ops.to_goto_bookmark = record_full_goto_bookmark; | |
2319 | record_full_core_ops.to_async = record_full_async; | |
2320 | record_full_core_ops.to_can_async_p = record_full_can_async_p; | |
2321 | record_full_core_ops.to_is_async_p = record_full_is_async_p; | |
2322 | record_full_core_ops.to_execution_direction | |
2323 | = record_full_execution_direction; | |
2324 | record_full_core_ops.to_info_record = record_full_info; | |
2325 | record_full_core_ops.to_delete_record = record_full_delete; | |
2326 | record_full_core_ops.to_record_is_replaying = record_full_is_replaying; | |
2327 | record_full_core_ops.to_goto_record_begin = record_full_goto_begin; | |
2328 | record_full_core_ops.to_goto_record_end = record_full_goto_end; | |
2329 | record_full_core_ops.to_goto_record = record_full_goto; | |
2330 | record_full_core_ops.to_magic = OPS_MAGIC; | |
d02ed0bb MM |
2331 | } |
2332 | ||
2333 | /* Record log save-file format | |
2334 | Version 1 (never released) | |
2335 | ||
2336 | Header: | |
2337 | 4 bytes: magic number htonl(0x20090829). | |
2338 | NOTE: be sure to change whenever this file format changes! | |
2339 | ||
2340 | Records: | |
88d1aa9d MM |
2341 | record_full_end: |
2342 | 1 byte: record type (record_full_end, see enum record_full_type). | |
2343 | record_full_reg: | |
2344 | 1 byte: record type (record_full_reg, see enum record_full_type). | |
d02ed0bb MM |
2345 | 8 bytes: register id (network byte order). |
2346 | MAX_REGISTER_SIZE bytes: register value. | |
88d1aa9d MM |
2347 | record_full_mem: |
2348 | 1 byte: record type (record_full_mem, see enum record_full_type). | |
d02ed0bb MM |
2349 | 8 bytes: memory length (network byte order). |
2350 | 8 bytes: memory address (network byte order). | |
2351 | n bytes: memory value (n == memory length). | |
2352 | ||
2353 | Version 2 | |
2354 | 4 bytes: magic number netorder32(0x20091016). | |
2355 | NOTE: be sure to change whenever this file format changes! | |
2356 | ||
2357 | Records: | |
88d1aa9d MM |
2358 | record_full_end: |
2359 | 1 byte: record type (record_full_end, see enum record_full_type). | |
d02ed0bb MM |
2360 | 4 bytes: signal |
2361 | 4 bytes: instruction count | |
88d1aa9d MM |
2362 | record_full_reg: |
2363 | 1 byte: record type (record_full_reg, see enum record_full_type). | |
d02ed0bb MM |
2364 | 4 bytes: register id (network byte order). |
2365 | n bytes: register value (n == actual register size). | |
2366 | (eg. 4 bytes for x86 general registers). | |
88d1aa9d MM |
2367 | record_full_mem: |
2368 | 1 byte: record type (record_full_mem, see enum record_full_type). | |
d02ed0bb MM |
2369 | 4 bytes: memory length (network byte order). |
2370 | 8 bytes: memory address (network byte order). | |
2371 | n bytes: memory value (n == memory length). | |
2372 | ||
2373 | */ | |
2374 | ||
2375 | /* bfdcore_read -- read bytes from a core file section. */ | |
2376 | ||
2377 | static inline void | |
2378 | bfdcore_read (bfd *obfd, asection *osec, void *buf, int len, int *offset) | |
2379 | { | |
2380 | int ret = bfd_get_section_contents (obfd, osec, buf, *offset, len); | |
2381 | ||
2382 | if (ret) | |
2383 | *offset += len; | |
2384 | else | |
2385 | error (_("Failed to read %d bytes from core file %s ('%s')."), | |
2386 | len, bfd_get_filename (obfd), | |
2387 | bfd_errmsg (bfd_get_error ())); | |
2388 | } | |
2389 | ||
2390 | static inline uint64_t | |
2391 | netorder64 (uint64_t input) | |
2392 | { | |
2393 | uint64_t ret; | |
2394 | ||
2395 | store_unsigned_integer ((gdb_byte *) &ret, sizeof (ret), | |
2396 | BFD_ENDIAN_BIG, input); | |
2397 | return ret; | |
2398 | } | |
2399 | ||
2400 | static inline uint32_t | |
2401 | netorder32 (uint32_t input) | |
2402 | { | |
2403 | uint32_t ret; | |
2404 | ||
2405 | store_unsigned_integer ((gdb_byte *) &ret, sizeof (ret), | |
2406 | BFD_ENDIAN_BIG, input); | |
2407 | return ret; | |
2408 | } | |
2409 | ||
2410 | static inline uint16_t | |
2411 | netorder16 (uint16_t input) | |
2412 | { | |
2413 | uint16_t ret; | |
2414 | ||
2415 | store_unsigned_integer ((gdb_byte *) &ret, sizeof (ret), | |
2416 | BFD_ENDIAN_BIG, input); | |
2417 | return ret; | |
2418 | } | |
2419 | ||
2420 | /* Restore the execution log from a core_bfd file. */ | |
2421 | static void | |
88d1aa9d | 2422 | record_full_restore (void) |
d02ed0bb MM |
2423 | { |
2424 | uint32_t magic; | |
2425 | struct cleanup *old_cleanups; | |
88d1aa9d | 2426 | struct record_full_entry *rec; |
d02ed0bb MM |
2427 | asection *osec; |
2428 | uint32_t osec_size; | |
2429 | int bfd_offset = 0; | |
2430 | struct regcache *regcache; | |
2431 | ||
2432 | /* We restore the execution log from the open core bfd, | |
2433 | if there is one. */ | |
2434 | if (core_bfd == NULL) | |
2435 | return; | |
2436 | ||
88d1aa9d MM |
2437 | /* "record_full_restore" can only be called when record list is empty. */ |
2438 | gdb_assert (record_full_first.next == NULL); | |
d02ed0bb MM |
2439 | |
2440 | if (record_debug) | |
2441 | fprintf_unfiltered (gdb_stdlog, "Restoring recording from core file.\n"); | |
2442 | ||
2443 | /* Now need to find our special note section. */ | |
2444 | osec = bfd_get_section_by_name (core_bfd, "null0"); | |
2445 | if (record_debug) | |
2446 | fprintf_unfiltered (gdb_stdlog, "Find precord section %s.\n", | |
2447 | osec ? "succeeded" : "failed"); | |
2448 | if (osec == NULL) | |
2449 | return; | |
2450 | osec_size = bfd_section_size (core_bfd, osec); | |
2451 | if (record_debug) | |
2452 | fprintf_unfiltered (gdb_stdlog, "%s", bfd_section_name (core_bfd, osec)); | |
2453 | ||
2454 | /* Check the magic code. */ | |
2455 | bfdcore_read (core_bfd, osec, &magic, sizeof (magic), &bfd_offset); | |
88d1aa9d | 2456 | if (magic != RECORD_FULL_FILE_MAGIC) |
d02ed0bb MM |
2457 | error (_("Version mis-match or file format error in core file %s."), |
2458 | bfd_get_filename (core_bfd)); | |
2459 | if (record_debug) | |
2460 | fprintf_unfiltered (gdb_stdlog, | |
2461 | " Reading 4-byte magic cookie " | |
88d1aa9d | 2462 | "RECORD_FULL_FILE_MAGIC (0x%s)\n", |
d02ed0bb MM |
2463 | phex_nz (netorder32 (magic), 4)); |
2464 | ||
88d1aa9d MM |
2465 | /* Restore the entries in recfd into record_full_arch_list_head and |
2466 | record_full_arch_list_tail. */ | |
2467 | record_full_arch_list_head = NULL; | |
2468 | record_full_arch_list_tail = NULL; | |
2469 | record_full_insn_num = 0; | |
2470 | old_cleanups = make_cleanup (record_full_arch_list_cleanups, 0); | |
d02ed0bb MM |
2471 | regcache = get_current_regcache (); |
2472 | ||
2473 | while (1) | |
2474 | { | |
2475 | uint8_t rectype; | |
2476 | uint32_t regnum, len, signal, count; | |
2477 | uint64_t addr; | |
2478 | ||
2479 | /* We are finished when offset reaches osec_size. */ | |
2480 | if (bfd_offset >= osec_size) | |
2481 | break; | |
2482 | bfdcore_read (core_bfd, osec, &rectype, sizeof (rectype), &bfd_offset); | |
2483 | ||
2484 | switch (rectype) | |
2485 | { | |
88d1aa9d | 2486 | case record_full_reg: /* reg */ |
d02ed0bb MM |
2487 | /* Get register number to regnum. */ |
2488 | bfdcore_read (core_bfd, osec, ®num, | |
2489 | sizeof (regnum), &bfd_offset); | |
2490 | regnum = netorder32 (regnum); | |
2491 | ||
88d1aa9d | 2492 | rec = record_full_reg_alloc (regcache, regnum); |
d02ed0bb MM |
2493 | |
2494 | /* Get val. */ | |
88d1aa9d | 2495 | bfdcore_read (core_bfd, osec, record_full_get_loc (rec), |
d02ed0bb MM |
2496 | rec->u.reg.len, &bfd_offset); |
2497 | ||
2498 | if (record_debug) | |
2499 | fprintf_unfiltered (gdb_stdlog, | |
2500 | " Reading register %d (1 " | |
2501 | "plus %lu plus %d bytes)\n", | |
2502 | rec->u.reg.num, | |
2503 | (unsigned long) sizeof (regnum), | |
2504 | rec->u.reg.len); | |
2505 | break; | |
2506 | ||
88d1aa9d | 2507 | case record_full_mem: /* mem */ |
d02ed0bb MM |
2508 | /* Get len. */ |
2509 | bfdcore_read (core_bfd, osec, &len, | |
2510 | sizeof (len), &bfd_offset); | |
2511 | len = netorder32 (len); | |
2512 | ||
2513 | /* Get addr. */ | |
2514 | bfdcore_read (core_bfd, osec, &addr, | |
2515 | sizeof (addr), &bfd_offset); | |
2516 | addr = netorder64 (addr); | |
2517 | ||
88d1aa9d | 2518 | rec = record_full_mem_alloc (addr, len); |
d02ed0bb MM |
2519 | |
2520 | /* Get val. */ | |
88d1aa9d | 2521 | bfdcore_read (core_bfd, osec, record_full_get_loc (rec), |
d02ed0bb MM |
2522 | rec->u.mem.len, &bfd_offset); |
2523 | ||
2524 | if (record_debug) | |
2525 | fprintf_unfiltered (gdb_stdlog, | |
2526 | " Reading memory %s (1 plus " | |
2527 | "%lu plus %lu plus %d bytes)\n", | |
2528 | paddress (get_current_arch (), | |
2529 | rec->u.mem.addr), | |
2530 | (unsigned long) sizeof (addr), | |
2531 | (unsigned long) sizeof (len), | |
2532 | rec->u.mem.len); | |
2533 | break; | |
2534 | ||
88d1aa9d MM |
2535 | case record_full_end: /* end */ |
2536 | rec = record_full_end_alloc (); | |
2537 | record_full_insn_num ++; | |
d02ed0bb MM |
2538 | |
2539 | /* Get signal value. */ | |
2540 | bfdcore_read (core_bfd, osec, &signal, | |
2541 | sizeof (signal), &bfd_offset); | |
2542 | signal = netorder32 (signal); | |
2543 | rec->u.end.sigval = signal; | |
2544 | ||
2545 | /* Get insn count. */ | |
2546 | bfdcore_read (core_bfd, osec, &count, | |
2547 | sizeof (count), &bfd_offset); | |
2548 | count = netorder32 (count); | |
2549 | rec->u.end.insn_num = count; | |
88d1aa9d | 2550 | record_full_insn_count = count + 1; |
d02ed0bb MM |
2551 | if (record_debug) |
2552 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d | 2553 | " Reading record_full_end (1 + " |
d02ed0bb MM |
2554 | "%lu + %lu bytes), offset == %s\n", |
2555 | (unsigned long) sizeof (signal), | |
2556 | (unsigned long) sizeof (count), | |
2557 | paddress (get_current_arch (), | |
2558 | bfd_offset)); | |
2559 | break; | |
2560 | ||
2561 | default: | |
2562 | error (_("Bad entry type in core file %s."), | |
2563 | bfd_get_filename (core_bfd)); | |
2564 | break; | |
2565 | } | |
2566 | ||
2567 | /* Add rec to record arch list. */ | |
88d1aa9d | 2568 | record_full_arch_list_add (rec); |
d02ed0bb MM |
2569 | } |
2570 | ||
2571 | discard_cleanups (old_cleanups); | |
2572 | ||
88d1aa9d MM |
2573 | /* Add record_full_arch_list_head to the end of record list. */ |
2574 | record_full_first.next = record_full_arch_list_head; | |
2575 | record_full_arch_list_head->prev = &record_full_first; | |
2576 | record_full_arch_list_tail->next = NULL; | |
2577 | record_full_list = &record_full_first; | |
d02ed0bb | 2578 | |
88d1aa9d MM |
2579 | /* Update record_full_insn_max_num. */ |
2580 | if (record_full_insn_num > record_full_insn_max_num) | |
d02ed0bb | 2581 | { |
88d1aa9d | 2582 | record_full_insn_max_num = record_full_insn_num; |
7ee70bf5 | 2583 | warning (_("Auto increase record/replay buffer limit to %u."), |
88d1aa9d | 2584 | record_full_insn_max_num); |
d02ed0bb MM |
2585 | } |
2586 | ||
2587 | /* Succeeded. */ | |
2588 | printf_filtered (_("Restored records from core file %s.\n"), | |
2589 | bfd_get_filename (core_bfd)); | |
2590 | ||
08d72866 | 2591 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
d02ed0bb MM |
2592 | } |
2593 | ||
2594 | /* bfdcore_write -- write bytes into a core file section. */ | |
2595 | ||
2596 | static inline void | |
2597 | bfdcore_write (bfd *obfd, asection *osec, void *buf, int len, int *offset) | |
2598 | { | |
2599 | int ret = bfd_set_section_contents (obfd, osec, buf, *offset, len); | |
2600 | ||
2601 | if (ret) | |
2602 | *offset += len; | |
2603 | else | |
2604 | error (_("Failed to write %d bytes to core file %s ('%s')."), | |
2605 | len, bfd_get_filename (obfd), | |
2606 | bfd_errmsg (bfd_get_error ())); | |
2607 | } | |
2608 | ||
2609 | /* Restore the execution log from a file. We use a modified elf | |
2610 | corefile format, with an extra section for our data. */ | |
2611 | ||
2612 | static void | |
88d1aa9d | 2613 | cmd_record_full_restore (char *args, int from_tty) |
d02ed0bb MM |
2614 | { |
2615 | core_file_command (args, from_tty); | |
88d1aa9d | 2616 | record_full_open (args, from_tty); |
d02ed0bb MM |
2617 | } |
2618 | ||
2619 | static void | |
88d1aa9d | 2620 | record_full_save_cleanups (void *data) |
d02ed0bb MM |
2621 | { |
2622 | bfd *obfd = data; | |
2623 | char *pathname = xstrdup (bfd_get_filename (obfd)); | |
2624 | ||
2625 | gdb_bfd_unref (obfd); | |
2626 | unlink (pathname); | |
2627 | xfree (pathname); | |
2628 | } | |
2629 | ||
2630 | /* Save the execution log to a file. We use a modified elf corefile | |
2631 | format, with an extra section for our data. */ | |
2632 | ||
2633 | static void | |
85e1311a | 2634 | record_full_save (const char *recfilename) |
d02ed0bb | 2635 | { |
88d1aa9d | 2636 | struct record_full_entry *cur_record_full_list; |
d02ed0bb MM |
2637 | uint32_t magic; |
2638 | struct regcache *regcache; | |
2639 | struct gdbarch *gdbarch; | |
2640 | struct cleanup *old_cleanups; | |
2641 | struct cleanup *set_cleanups; | |
2642 | bfd *obfd; | |
2643 | int save_size = 0; | |
2644 | asection *osec = NULL; | |
2645 | int bfd_offset = 0; | |
2646 | ||
2647 | /* Open the save file. */ | |
2648 | if (record_debug) | |
2649 | fprintf_unfiltered (gdb_stdlog, "Saving execution log to core file '%s'\n", | |
2650 | recfilename); | |
2651 | ||
2652 | /* Open the output file. */ | |
2653 | obfd = create_gcore_bfd (recfilename); | |
88d1aa9d | 2654 | old_cleanups = make_cleanup (record_full_save_cleanups, obfd); |
d02ed0bb | 2655 | |
88d1aa9d MM |
2656 | /* Save the current record entry to "cur_record_full_list". */ |
2657 | cur_record_full_list = record_full_list; | |
d02ed0bb MM |
2658 | |
2659 | /* Get the values of regcache and gdbarch. */ | |
2660 | regcache = get_current_regcache (); | |
2661 | gdbarch = get_regcache_arch (regcache); | |
2662 | ||
2663 | /* Disable the GDB operation record. */ | |
25ea693b | 2664 | set_cleanups = record_full_gdb_operation_disable_set (); |
d02ed0bb MM |
2665 | |
2666 | /* Reverse execute to the begin of record list. */ | |
2667 | while (1) | |
2668 | { | |
2669 | /* Check for beginning and end of log. */ | |
88d1aa9d | 2670 | if (record_full_list == &record_full_first) |
d02ed0bb MM |
2671 | break; |
2672 | ||
88d1aa9d | 2673 | record_full_exec_insn (regcache, gdbarch, record_full_list); |
d02ed0bb | 2674 | |
88d1aa9d MM |
2675 | if (record_full_list->prev) |
2676 | record_full_list = record_full_list->prev; | |
d02ed0bb MM |
2677 | } |
2678 | ||
2679 | /* Compute the size needed for the extra bfd section. */ | |
2680 | save_size = 4; /* magic cookie */ | |
88d1aa9d MM |
2681 | for (record_full_list = record_full_first.next; record_full_list; |
2682 | record_full_list = record_full_list->next) | |
2683 | switch (record_full_list->type) | |
d02ed0bb | 2684 | { |
88d1aa9d | 2685 | case record_full_end: |
d02ed0bb MM |
2686 | save_size += 1 + 4 + 4; |
2687 | break; | |
88d1aa9d MM |
2688 | case record_full_reg: |
2689 | save_size += 1 + 4 + record_full_list->u.reg.len; | |
d02ed0bb | 2690 | break; |
88d1aa9d MM |
2691 | case record_full_mem: |
2692 | save_size += 1 + 4 + 8 + record_full_list->u.mem.len; | |
d02ed0bb MM |
2693 | break; |
2694 | } | |
2695 | ||
2696 | /* Make the new bfd section. */ | |
2697 | osec = bfd_make_section_anyway_with_flags (obfd, "precord", | |
2698 | SEC_HAS_CONTENTS | |
2699 | | SEC_READONLY); | |
2700 | if (osec == NULL) | |
2701 | error (_("Failed to create 'precord' section for corefile %s: %s"), | |
2702 | recfilename, | |
2703 | bfd_errmsg (bfd_get_error ())); | |
2704 | bfd_set_section_size (obfd, osec, save_size); | |
2705 | bfd_set_section_vma (obfd, osec, 0); | |
2706 | bfd_set_section_alignment (obfd, osec, 0); | |
2707 | bfd_section_lma (obfd, osec) = 0; | |
2708 | ||
2709 | /* Save corefile state. */ | |
2710 | write_gcore_file (obfd); | |
2711 | ||
2712 | /* Write out the record log. */ | |
2713 | /* Write the magic code. */ | |
88d1aa9d | 2714 | magic = RECORD_FULL_FILE_MAGIC; |
d02ed0bb MM |
2715 | if (record_debug) |
2716 | fprintf_unfiltered (gdb_stdlog, | |
2717 | " Writing 4-byte magic cookie " | |
88d1aa9d | 2718 | "RECORD_FULL_FILE_MAGIC (0x%s)\n", |
d02ed0bb MM |
2719 | phex_nz (magic, 4)); |
2720 | bfdcore_write (obfd, osec, &magic, sizeof (magic), &bfd_offset); | |
2721 | ||
2722 | /* Save the entries to recfd and forward execute to the end of | |
2723 | record list. */ | |
88d1aa9d | 2724 | record_full_list = &record_full_first; |
d02ed0bb MM |
2725 | while (1) |
2726 | { | |
2727 | /* Save entry. */ | |
88d1aa9d | 2728 | if (record_full_list != &record_full_first) |
d02ed0bb MM |
2729 | { |
2730 | uint8_t type; | |
2731 | uint32_t regnum, len, signal, count; | |
2732 | uint64_t addr; | |
2733 | ||
88d1aa9d | 2734 | type = record_full_list->type; |
d02ed0bb MM |
2735 | bfdcore_write (obfd, osec, &type, sizeof (type), &bfd_offset); |
2736 | ||
88d1aa9d | 2737 | switch (record_full_list->type) |
d02ed0bb | 2738 | { |
88d1aa9d | 2739 | case record_full_reg: /* reg */ |
d02ed0bb MM |
2740 | if (record_debug) |
2741 | fprintf_unfiltered (gdb_stdlog, | |
2742 | " Writing register %d (1 " | |
2743 | "plus %lu plus %d bytes)\n", | |
88d1aa9d | 2744 | record_full_list->u.reg.num, |
d02ed0bb | 2745 | (unsigned long) sizeof (regnum), |
88d1aa9d | 2746 | record_full_list->u.reg.len); |
d02ed0bb MM |
2747 | |
2748 | /* Write regnum. */ | |
88d1aa9d | 2749 | regnum = netorder32 (record_full_list->u.reg.num); |
d02ed0bb MM |
2750 | bfdcore_write (obfd, osec, ®num, |
2751 | sizeof (regnum), &bfd_offset); | |
2752 | ||
2753 | /* Write regval. */ | |
88d1aa9d MM |
2754 | bfdcore_write (obfd, osec, |
2755 | record_full_get_loc (record_full_list), | |
2756 | record_full_list->u.reg.len, &bfd_offset); | |
d02ed0bb MM |
2757 | break; |
2758 | ||
88d1aa9d | 2759 | case record_full_mem: /* mem */ |
d02ed0bb MM |
2760 | if (record_debug) |
2761 | fprintf_unfiltered (gdb_stdlog, | |
2762 | " Writing memory %s (1 plus " | |
2763 | "%lu plus %lu plus %d bytes)\n", | |
2764 | paddress (gdbarch, | |
88d1aa9d | 2765 | record_full_list->u.mem.addr), |
d02ed0bb MM |
2766 | (unsigned long) sizeof (addr), |
2767 | (unsigned long) sizeof (len), | |
88d1aa9d | 2768 | record_full_list->u.mem.len); |
d02ed0bb MM |
2769 | |
2770 | /* Write memlen. */ | |
88d1aa9d | 2771 | len = netorder32 (record_full_list->u.mem.len); |
d02ed0bb MM |
2772 | bfdcore_write (obfd, osec, &len, sizeof (len), &bfd_offset); |
2773 | ||
2774 | /* Write memaddr. */ | |
88d1aa9d | 2775 | addr = netorder64 (record_full_list->u.mem.addr); |
d02ed0bb MM |
2776 | bfdcore_write (obfd, osec, &addr, |
2777 | sizeof (addr), &bfd_offset); | |
2778 | ||
2779 | /* Write memval. */ | |
88d1aa9d MM |
2780 | bfdcore_write (obfd, osec, |
2781 | record_full_get_loc (record_full_list), | |
2782 | record_full_list->u.mem.len, &bfd_offset); | |
d02ed0bb MM |
2783 | break; |
2784 | ||
88d1aa9d | 2785 | case record_full_end: |
d02ed0bb MM |
2786 | if (record_debug) |
2787 | fprintf_unfiltered (gdb_stdlog, | |
88d1aa9d | 2788 | " Writing record_full_end (1 + " |
d02ed0bb MM |
2789 | "%lu + %lu bytes)\n", |
2790 | (unsigned long) sizeof (signal), | |
2791 | (unsigned long) sizeof (count)); | |
2792 | /* Write signal value. */ | |
88d1aa9d | 2793 | signal = netorder32 (record_full_list->u.end.sigval); |
d02ed0bb MM |
2794 | bfdcore_write (obfd, osec, &signal, |
2795 | sizeof (signal), &bfd_offset); | |
2796 | ||
2797 | /* Write insn count. */ | |
88d1aa9d | 2798 | count = netorder32 (record_full_list->u.end.insn_num); |
d02ed0bb MM |
2799 | bfdcore_write (obfd, osec, &count, |
2800 | sizeof (count), &bfd_offset); | |
2801 | break; | |
2802 | } | |
2803 | } | |
2804 | ||
2805 | /* Execute entry. */ | |
88d1aa9d | 2806 | record_full_exec_insn (regcache, gdbarch, record_full_list); |
d02ed0bb | 2807 | |
88d1aa9d MM |
2808 | if (record_full_list->next) |
2809 | record_full_list = record_full_list->next; | |
d02ed0bb MM |
2810 | else |
2811 | break; | |
2812 | } | |
2813 | ||
88d1aa9d | 2814 | /* Reverse execute to cur_record_full_list. */ |
d02ed0bb MM |
2815 | while (1) |
2816 | { | |
2817 | /* Check for beginning and end of log. */ | |
88d1aa9d | 2818 | if (record_full_list == cur_record_full_list) |
d02ed0bb MM |
2819 | break; |
2820 | ||
88d1aa9d | 2821 | record_full_exec_insn (regcache, gdbarch, record_full_list); |
d02ed0bb | 2822 | |
88d1aa9d MM |
2823 | if (record_full_list->prev) |
2824 | record_full_list = record_full_list->prev; | |
d02ed0bb MM |
2825 | } |
2826 | ||
2827 | do_cleanups (set_cleanups); | |
2828 | gdb_bfd_unref (obfd); | |
2829 | discard_cleanups (old_cleanups); | |
2830 | ||
2831 | /* Succeeded. */ | |
2832 | printf_filtered (_("Saved core file %s with execution log.\n"), | |
2833 | recfilename); | |
2834 | } | |
2835 | ||
88d1aa9d | 2836 | /* record_full_goto_insn -- rewind the record log (forward or backward, |
d02ed0bb MM |
2837 | depending on DIR) to the given entry, changing the program state |
2838 | correspondingly. */ | |
2839 | ||
2840 | static void | |
88d1aa9d MM |
2841 | record_full_goto_insn (struct record_full_entry *entry, |
2842 | enum exec_direction_kind dir) | |
d02ed0bb | 2843 | { |
25ea693b | 2844 | struct cleanup *set_cleanups = record_full_gdb_operation_disable_set (); |
d02ed0bb MM |
2845 | struct regcache *regcache = get_current_regcache (); |
2846 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
2847 | ||
2848 | /* Assume everything is valid: we will hit the entry, | |
2849 | and we will not hit the end of the recording. */ | |
2850 | ||
2851 | if (dir == EXEC_FORWARD) | |
88d1aa9d | 2852 | record_full_list = record_full_list->next; |
d02ed0bb MM |
2853 | |
2854 | do | |
2855 | { | |
88d1aa9d | 2856 | record_full_exec_insn (regcache, gdbarch, record_full_list); |
d02ed0bb | 2857 | if (dir == EXEC_REVERSE) |
88d1aa9d | 2858 | record_full_list = record_full_list->prev; |
d02ed0bb | 2859 | else |
88d1aa9d MM |
2860 | record_full_list = record_full_list->next; |
2861 | } while (record_full_list != entry); | |
d02ed0bb MM |
2862 | do_cleanups (set_cleanups); |
2863 | } | |
2864 | ||
2865 | /* Alias for "target record-full". */ | |
2866 | ||
2867 | static void | |
88d1aa9d | 2868 | cmd_record_full_start (char *args, int from_tty) |
d02ed0bb MM |
2869 | { |
2870 | execute_command ("target record-full", from_tty); | |
2871 | } | |
2872 | ||
2873 | static void | |
88d1aa9d MM |
2874 | set_record_full_insn_max_num (char *args, int from_tty, |
2875 | struct cmd_list_element *c) | |
d02ed0bb | 2876 | { |
7ee70bf5 | 2877 | if (record_full_insn_num > record_full_insn_max_num) |
d02ed0bb | 2878 | { |
88d1aa9d MM |
2879 | /* Count down record_full_insn_num while releasing records from list. */ |
2880 | while (record_full_insn_num > record_full_insn_max_num) | |
d02ed0bb | 2881 | { |
88d1aa9d MM |
2882 | record_full_list_release_first (); |
2883 | record_full_insn_num--; | |
d02ed0bb MM |
2884 | } |
2885 | } | |
2886 | } | |
2887 | ||
2888 | /* The "set record full" command. */ | |
2889 | ||
2890 | static void | |
2891 | set_record_full_command (char *args, int from_tty) | |
2892 | { | |
2893 | printf_unfiltered (_("\"set record full\" must be followed " | |
2894 | "by an apporpriate subcommand.\n")); | |
2895 | help_list (set_record_full_cmdlist, "set record full ", all_commands, | |
2896 | gdb_stdout); | |
2897 | } | |
2898 | ||
2899 | /* The "show record full" command. */ | |
2900 | ||
2901 | static void | |
2902 | show_record_full_command (char *args, int from_tty) | |
2903 | { | |
2904 | cmd_show_list (show_record_full_cmdlist, from_tty, ""); | |
2905 | } | |
2906 | ||
2907 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
2908 | extern initialize_file_ftype _initialize_record_full; | |
2909 | ||
2910 | void | |
2911 | _initialize_record_full (void) | |
2912 | { | |
2913 | struct cmd_list_element *c; | |
2914 | ||
88d1aa9d MM |
2915 | /* Init record_full_first. */ |
2916 | record_full_first.prev = NULL; | |
2917 | record_full_first.next = NULL; | |
2918 | record_full_first.type = record_full_end; | |
d02ed0bb | 2919 | |
88d1aa9d MM |
2920 | init_record_full_ops (); |
2921 | add_target (&record_full_ops); | |
2922 | add_deprecated_target_alias (&record_full_ops, "record"); | |
2923 | init_record_full_core_ops (); | |
2924 | add_target (&record_full_core_ops); | |
d02ed0bb | 2925 | |
88d1aa9d | 2926 | add_prefix_cmd ("full", class_obscure, cmd_record_full_start, |
d02ed0bb MM |
2927 | _("Start full execution recording."), &record_full_cmdlist, |
2928 | "record full ", 0, &record_cmdlist); | |
2929 | ||
88d1aa9d | 2930 | c = add_cmd ("restore", class_obscure, cmd_record_full_restore, |
d02ed0bb MM |
2931 | _("Restore the execution log from a file.\n\ |
2932 | Argument is filename. File must be created with 'record save'."), | |
2933 | &record_full_cmdlist); | |
2934 | set_cmd_completer (c, filename_completer); | |
2935 | ||
2936 | /* Deprecate the old version without "full" prefix. */ | |
2937 | c = add_alias_cmd ("restore", "full restore", class_obscure, 1, | |
2938 | &record_cmdlist); | |
2939 | set_cmd_completer (c, filename_completer); | |
2940 | deprecate_cmd (c, "record full restore"); | |
2941 | ||
2942 | add_prefix_cmd ("full", class_support, set_record_full_command, | |
2943 | _("Set record options"), &set_record_full_cmdlist, | |
2944 | "set record full ", 0, &set_record_cmdlist); | |
2945 | ||
2946 | add_prefix_cmd ("full", class_support, show_record_full_command, | |
2947 | _("Show record options"), &show_record_full_cmdlist, | |
2948 | "show record full ", 0, &show_record_cmdlist); | |
2949 | ||
2950 | /* Record instructions number limit command. */ | |
2951 | add_setshow_boolean_cmd ("stop-at-limit", no_class, | |
88d1aa9d | 2952 | &record_full_stop_at_limit, _("\ |
d02ed0bb MM |
2953 | Set whether record/replay stops when record/replay buffer becomes full."), _("\ |
2954 | Show whether record/replay stops when record/replay buffer becomes full."), | |
2955 | _("Default is ON.\n\ | |
2956 | When ON, if the record/replay buffer becomes full, ask user what to do.\n\ | |
2957 | When OFF, if the record/replay buffer becomes full,\n\ | |
2958 | delete the oldest recorded instruction to make room for each new one."), | |
2959 | NULL, NULL, | |
2960 | &set_record_full_cmdlist, &show_record_full_cmdlist); | |
2961 | ||
2962 | c = add_alias_cmd ("stop-at-limit", "full stop-at-limit", no_class, 1, | |
2963 | &set_record_cmdlist); | |
2964 | deprecate_cmd (c, "set record full stop-at-limit"); | |
2965 | ||
2966 | c = add_alias_cmd ("stop-at-limit", "full stop-at-limit", no_class, 1, | |
2967 | &show_record_cmdlist); | |
2968 | deprecate_cmd (c, "show record full stop-at-limit"); | |
2969 | ||
88d1aa9d MM |
2970 | add_setshow_uinteger_cmd ("insn-number-max", no_class, |
2971 | &record_full_insn_max_num, | |
d02ed0bb MM |
2972 | _("Set record/replay buffer limit."), |
2973 | _("Show record/replay buffer limit."), _("\ | |
2974 | Set the maximum number of instructions to be stored in the\n\ | |
f81d1120 PA |
2975 | record/replay buffer. A value of either \"unlimited\" or zero means no\n\ |
2976 | limit. Default is 200000."), | |
88d1aa9d | 2977 | set_record_full_insn_max_num, |
d02ed0bb MM |
2978 | NULL, &set_record_full_cmdlist, |
2979 | &show_record_full_cmdlist); | |
2980 | ||
2981 | c = add_alias_cmd ("insn-number-max", "full insn-number-max", no_class, 1, | |
2982 | &set_record_cmdlist); | |
2983 | deprecate_cmd (c, "set record full insn-number-max"); | |
2984 | ||
2985 | c = add_alias_cmd ("insn-number-max", "full insn-number-max", no_class, 1, | |
2986 | &show_record_cmdlist); | |
2987 | deprecate_cmd (c, "show record full insn-number-max"); | |
2988 | ||
88d1aa9d | 2989 | add_setshow_boolean_cmd ("memory-query", no_class, |
25ea693b | 2990 | &record_full_memory_query, _("\ |
d02ed0bb MM |
2991 | Set whether query if PREC cannot record memory change of next instruction."), |
2992 | _("\ | |
2993 | Show whether query if PREC cannot record memory change of next instruction."), | |
2994 | _("\ | |
2995 | Default is OFF.\n\ | |
2996 | When ON, query if PREC cannot record memory change of next instruction."), | |
2997 | NULL, NULL, | |
88d1aa9d MM |
2998 | &set_record_full_cmdlist, |
2999 | &show_record_full_cmdlist); | |
d02ed0bb MM |
3000 | |
3001 | c = add_alias_cmd ("memory-query", "full memory-query", no_class, 1, | |
3002 | &set_record_cmdlist); | |
3003 | deprecate_cmd (c, "set record full memory-query"); | |
3004 | ||
3005 | c = add_alias_cmd ("memory-query", "full memory-query", no_class, 1, | |
3006 | &show_record_cmdlist); | |
3007 | deprecate_cmd (c, "show record full memory-query"); | |
3008 | } |