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linux-user: Fix exit syscall with QOM CPU 

For QOM'ified CPUs we cannot g_free() CPUArchState, we must
object_delete() the object it is embedded into.

Fixes LP#982321 (invalid free() while executing pacman with qemu-arm).

Reported-by: Serge Schneider <serge@xecdesign.com>
Reported-by: Russell Keith Davis <russell@russelldavis.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Serge Schneider <serge@xecdesign.com>
Tested-by: Russell Keith Davis <russell@russelldavis.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Andreas Färber 2012-04-15 18:51:01 +02:00 committed by Blue Swirl
parent da12872a09
commit 11ea409052
1 changed files with 4 additions and 0 deletions
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4
linux-user/syscall.c
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@ -5045,7 +5045,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
NULL, NULL, 0); NULL, NULL, 0);
} }
thread_env = NULL; thread_env = NULL;
#ifdef ENV_GET_CPU
object_delete(OBJECT(ENV_GET_CPU(cpu_env)));
#else
g_free(cpu_env); g_free(cpu_env);
#endif
g_free(ts); g_free(ts);
pthread_exit(NULL); pthread_exit(NULL);
} }