2020-10-03 20:13:20 +03:00
|
|
|
/*
|
|
|
|
* replay-debugging.c
|
|
|
|
*
|
|
|
|
* Copyright (c) 2010-2020 Institute for System Programming
|
|
|
|
* of the Russian Academy of Sciences.
|
|
|
|
*
|
|
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
|
|
* See the COPYING file in the top-level directory.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "qemu/osdep.h"
|
|
|
|
#include "qapi/error.h"
|
|
|
|
#include "sysemu/replay.h"
|
2020-10-03 20:13:26 +03:00
|
|
|
#include "sysemu/runstate.h"
|
2020-10-03 20:13:20 +03:00
|
|
|
#include "replay-internal.h"
|
|
|
|
#include "monitor/hmp.h"
|
|
|
|
#include "monitor/monitor.h"
|
|
|
|
#include "qapi/qapi-commands-replay.h"
|
2020-10-03 20:13:26 +03:00
|
|
|
#include "qapi/qmp/qdict.h"
|
|
|
|
#include "qemu/timer.h"
|
2020-10-03 20:13:20 +03:00
|
|
|
|
|
|
|
void hmp_info_replay(Monitor *mon, const QDict *qdict)
|
|
|
|
{
|
|
|
|
if (replay_mode == REPLAY_MODE_NONE) {
|
|
|
|
monitor_printf(mon, "Record/replay is not active\n");
|
|
|
|
} else {
|
|
|
|
monitor_printf(mon,
|
|
|
|
"%s execution '%s': instruction count = %"PRId64"\n",
|
|
|
|
replay_mode == REPLAY_MODE_RECORD ? "Recording" : "Replaying",
|
|
|
|
replay_get_filename(), replay_get_current_icount());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ReplayInfo *qmp_query_replay(Error **errp)
|
|
|
|
{
|
|
|
|
ReplayInfo *retval = g_new0(ReplayInfo, 1);
|
|
|
|
|
|
|
|
retval->mode = replay_mode;
|
|
|
|
if (replay_get_filename()) {
|
|
|
|
retval->filename = g_strdup(replay_get_filename());
|
|
|
|
retval->has_filename = true;
|
|
|
|
}
|
|
|
|
retval->icount = replay_get_current_icount();
|
|
|
|
return retval;
|
|
|
|
}
|
2020-10-03 20:13:26 +03:00
|
|
|
|
|
|
|
static void replay_break(uint64_t icount, QEMUTimerCB callback, void *opaque)
|
|
|
|
{
|
|
|
|
assert(replay_mode == REPLAY_MODE_PLAY);
|
|
|
|
assert(replay_mutex_locked());
|
|
|
|
assert(replay_break_icount >= replay_get_current_icount());
|
|
|
|
assert(callback);
|
|
|
|
|
|
|
|
replay_break_icount = icount;
|
|
|
|
|
|
|
|
if (replay_break_timer) {
|
|
|
|
timer_del(replay_break_timer);
|
|
|
|
}
|
|
|
|
replay_break_timer = timer_new_ns(QEMU_CLOCK_REALTIME,
|
|
|
|
callback, opaque);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void replay_delete_break(void)
|
|
|
|
{
|
|
|
|
assert(replay_mode == REPLAY_MODE_PLAY);
|
|
|
|
assert(replay_mutex_locked());
|
|
|
|
|
|
|
|
if (replay_break_timer) {
|
|
|
|
timer_del(replay_break_timer);
|
|
|
|
timer_free(replay_break_timer);
|
|
|
|
replay_break_timer = NULL;
|
|
|
|
}
|
|
|
|
replay_break_icount = -1ULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void replay_stop_vm(void *opaque)
|
|
|
|
{
|
|
|
|
vm_stop(RUN_STATE_PAUSED);
|
|
|
|
replay_delete_break();
|
|
|
|
}
|
|
|
|
|
|
|
|
void qmp_replay_break(int64_t icount, Error **errp)
|
|
|
|
{
|
|
|
|
if (replay_mode == REPLAY_MODE_PLAY) {
|
|
|
|
if (icount >= replay_get_current_icount()) {
|
|
|
|
replay_break(icount, replay_stop_vm, NULL);
|
|
|
|
} else {
|
|
|
|
error_setg(errp,
|
|
|
|
"cannot set breakpoint at the instruction in the past");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
error_setg(errp, "setting the breakpoint is allowed only in play mode");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void hmp_replay_break(Monitor *mon, const QDict *qdict)
|
|
|
|
{
|
|
|
|
int64_t icount = qdict_get_try_int(qdict, "icount", -1LL);
|
|
|
|
Error *err = NULL;
|
|
|
|
|
|
|
|
qmp_replay_break(icount, &err);
|
|
|
|
if (err) {
|
|
|
|
error_report_err(err);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void qmp_replay_delete_break(Error **errp)
|
|
|
|
{
|
|
|
|
if (replay_mode == REPLAY_MODE_PLAY) {
|
|
|
|
replay_delete_break();
|
|
|
|
} else {
|
|
|
|
error_setg(errp, "replay breakpoints are allowed only in play mode");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void hmp_replay_delete_break(Monitor *mon, const QDict *qdict)
|
|
|
|
{
|
|
|
|
Error *err = NULL;
|
|
|
|
|
|
|
|
qmp_replay_delete_break(&err);
|
|
|
|
if (err) {
|
|
|
|
error_report_err(err);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|