From 9b1c911654e9d4937f10cb347cf581d50771ee5b Mon Sep 17 00:00:00 2001 From: Claudio Fontana Date: Tue, 13 Oct 2020 21:21:23 +0200 Subject: replay: do not build if TCG is not available this fixes non-TCG builds broken recently by replay reverse debugging. Stub the needed functions in stub/, splitting roughly between functions needed only by system emulation, by system emulation and tools, and by everyone. This includes duplicating some code in replay/, and puts the logic for non-replay related events in the replay/ module (+ the stubs), so this should be revisited in the future. Surprisingly, only _one_ qtest was affected by this, ide-test.c, which resulted in a buzz as the bh events were never delivered, and the bh never executed. Many other subsystems _should_ have been affected. This fixes the immediate issue, however a better way to group replay functionality to TCG-only code could be developed in the long term. Signed-off-by: Claudio Fontana Message-Id: <20201013192123.22632-4-cfontana@suse.de> Signed-off-by: Paolo Bonzini --- stubs/replay-tools.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 stubs/replay-tools.c (limited to 'stubs/replay-tools.c') diff --git a/stubs/replay-tools.c b/stubs/replay-tools.c new file mode 100644 index 0000000..c06b360 --- /dev/null +++ b/stubs/replay-tools.c @@ -0,0 +1,83 @@ +#include "qemu/osdep.h" +#include "sysemu/replay.h" +#include "block/aio.h" + +bool replay_events_enabled(void) +{ + return false; +} + +int64_t replay_save_clock(unsigned int kind, int64_t clock, int64_t raw_icount) +{ + abort(); + return 0; +} + +int64_t replay_read_clock(unsigned int kind) +{ + abort(); + return 0; +} + +uint64_t replay_get_current_icount(void) +{ + return 0; +} + +void replay_bh_schedule_event(QEMUBH *bh) +{ + qemu_bh_schedule(bh); +} + +void replay_bh_schedule_oneshot_event(AioContext *ctx, + QEMUBHFunc *cb, void *opaque) +{ + aio_bh_schedule_oneshot(ctx, cb, opaque); +} + +bool replay_checkpoint(ReplayCheckpoint checkpoint) +{ + return true; +} + +void replay_mutex_lock(void) +{ +} + +void replay_mutex_unlock(void) +{ +} + +void replay_register_char_driver(Chardev *chr) +{ +} + +void replay_chr_be_write(Chardev *s, uint8_t *buf, int len) +{ + abort(); +} + +void replay_char_write_event_save(int res, int offset) +{ + abort(); +} + +void replay_char_write_event_load(int *res, int *offset) +{ + abort(); +} + +int replay_char_read_all_load(uint8_t *buf) +{ + abort(); +} + +void replay_char_read_all_save_error(int res) +{ + abort(); +} + +void replay_char_read_all_save_buf(uint8_t *buf, int offset) +{ + abort(); +} -- cgit v1.1