d5938f29fe
In my "build everything" tree, changing sysemu/sysemu.h triggers a recompile of some 5400 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Almost a third of its inclusions are actually superfluous. Delete them. Downgrade two more to qapi/qapi-types-run-state.h, and move one from char/serial.h to char/serial.c. hw/semihosting/config.c, monitor/monitor.c, qdev-monitor.c, and stubs/semihost.c define variables declared in sysemu/sysemu.h without including it. The compiler is cool with that, but include it anyway. This doesn't reduce actual use much, as it's still included into widely included headers. The next commit will tackle that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-27-armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/*
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* replay-snapshot.c
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*
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* Copyright (c) 2010-2016 Institute for System Programming
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* of the Russian Academy of Sciences.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "sysemu/replay.h"
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#include "replay-internal.h"
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#include "monitor/monitor.h"
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#include "qapi/qmp/qstring.h"
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#include "qemu/error-report.h"
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#include "migration/vmstate.h"
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#include "migration/snapshot.h"
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static int replay_pre_save(void *opaque)
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{
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ReplayState *state = opaque;
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state->file_offset = ftell(replay_file);
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state->host_clock_last = qemu_clock_get_last(QEMU_CLOCK_HOST);
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return 0;
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}
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static int replay_post_load(void *opaque, int version_id)
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{
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ReplayState *state = opaque;
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if (replay_mode == REPLAY_MODE_PLAY) {
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fseek(replay_file, state->file_offset, SEEK_SET);
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qemu_clock_set_last(QEMU_CLOCK_HOST, state->host_clock_last);
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/* If this was a vmstate, saved in recording mode,
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we need to initialize replay data fields. */
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replay_fetch_data_kind();
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} else if (replay_mode == REPLAY_MODE_RECORD) {
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/* This is only useful for loading the initial state.
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Therefore reset all the counters. */
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state->instructions_count = 0;
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state->block_request_id = 0;
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}
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return 0;
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}
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static const VMStateDescription vmstate_replay = {
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.name = "replay",
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.version_id = 1,
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.minimum_version_id = 1,
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.pre_save = replay_pre_save,
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.post_load = replay_post_load,
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.fields = (VMStateField[]) {
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VMSTATE_INT64_ARRAY(cached_clock, ReplayState, REPLAY_CLOCK_COUNT),
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VMSTATE_UINT64(current_step, ReplayState),
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VMSTATE_INT32(instructions_count, ReplayState),
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VMSTATE_UINT32(data_kind, ReplayState),
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VMSTATE_UINT32(has_unread_data, ReplayState),
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VMSTATE_UINT64(file_offset, ReplayState),
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VMSTATE_UINT64(block_request_id, ReplayState),
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VMSTATE_UINT64(host_clock_last, ReplayState),
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VMSTATE_INT32(read_event_kind, ReplayState),
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VMSTATE_UINT64(read_event_id, ReplayState),
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VMSTATE_INT32(read_event_checkpoint, ReplayState),
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VMSTATE_END_OF_LIST()
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},
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};
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void replay_vmstate_register(void)
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{
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vmstate_register(NULL, 0, &vmstate_replay, &replay_state);
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}
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void replay_vmstate_init(void)
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{
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Error *err = NULL;
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if (replay_snapshot) {
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if (replay_mode == REPLAY_MODE_RECORD) {
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if (save_snapshot(replay_snapshot, &err) != 0) {
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error_report_err(err);
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error_report("Could not create snapshot for icount record");
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exit(1);
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}
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} else if (replay_mode == REPLAY_MODE_PLAY) {
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if (load_snapshot(replay_snapshot, &err) != 0) {
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error_report_err(err);
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error_report("Could not load snapshot for icount replay");
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exit(1);
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}
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}
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}
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}
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bool replay_can_snapshot(void)
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{
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return replay_mode == REPLAY_MODE_NONE
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|| !replay_has_events();
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}
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