Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2019-07-15' into staging
[qemu/ar7.git] / replay / replay-time.c
blob5154cb0ce9c82586157417766c5d2704a1e8a041
1 /*
2  * replay-time.c
3  *
4  * Copyright (c) 2010-2015 Institute for System Programming
5  *                         of the Russian Academy of Sciences.
6  *
7  * This work is licensed under the terms of the GNU GPL, version 2 or later.
8  * See the COPYING file in the top-level directory.
9  *
10  */
12 #include "qemu/osdep.h"
13 #include "sysemu/replay.h"
14 #include "replay-internal.h"
15 #include "qemu/error-report.h"
17 int64_t replay_save_clock(ReplayClockKind kind, int64_t clock, int64_t raw_icount)
19     if (replay_file) {
20         g_assert(replay_mutex_locked());
22         /* Due to the caller's locking requirements we get the icount from it
23          * instead of using replay_save_instructions().
24          */
25         replay_advance_current_step(raw_icount);
26         replay_put_event(EVENT_CLOCK + kind);
27         replay_put_qword(clock);
28     }
30     return clock;
33 void replay_read_next_clock(ReplayClockKind kind)
35     unsigned int read_kind = replay_state.data_kind - EVENT_CLOCK;
37     assert(read_kind == kind);
39     int64_t clock = replay_get_qword();
41     replay_check_error();
42     replay_finish_event();
44     replay_state.cached_clock[read_kind] = clock;
47 /*! Reads next clock event from the input. */
48 int64_t replay_read_clock(ReplayClockKind kind)
50     g_assert(replay_file && replay_mutex_locked());
52     replay_account_executed_instructions();
54     if (replay_file) {
55         int64_t ret;
56         if (replay_next_event_is(EVENT_CLOCK + kind)) {
57             replay_read_next_clock(kind);
58         }
59         ret = replay_state.cached_clock[kind];
61         return ret;
62     }
64     error_report("REPLAY INTERNAL ERROR %d", __LINE__);
65     exit(1);