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2022-09-29chardev: src buffer const for write functionsArwed Meyer
Make source buffers const for char be write functions. This allows using buffers returned by fifo as buf parameter and source buffer should not be changed by write functions anyway. Signed-off-by: Arwed Meyer <arwed.meyer@gmx.de> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220911181840.8933-3-arwed.meyer@gmx.de>
2022-07-28stubs: update replay-tools to match replay.h typesClaudio Fontana
detected with GCC 13 [-Werror=enum-int-mismatch] Solves Issue #1096. Signed-off-by: Claudio Fontana <cfontana@suse.de> Cc: Pavel Dovgalyuk <pavel.dovgalyuk@ispras.ru> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20220704075832.31537-1-cfontana@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-16replay: fix icount request when replaying clock accessPavel Dovgalyuk
Record/replay provides REPLAY_CLOCK_LOCKED macro to access the clock when vm_clock_seqlock is locked. This macro is needed because replay internals operate icount. In locked case replay use icount_get_raw_locked for icount request, which prevents excess locking which leads to deadlock. But previously only record code used *_locked function and replay did not. Therefore sometimes clock access lead to deadlocks. This patch fixes clock access for replay too and uses *_locked icount access function. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Message-Id: <161347990483.1313189.8371838968343494161.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-22replay: do not build if TCG is not availableClaudio Fontana
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 <cfontana@suse.de> Message-Id: <20201013192123.22632-4-cfontana@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>