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Revert "main-loop.c: Handle SIGINT, SIGHUP and SIGTERM synchronously"

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This reverts commit 15124e142034d21341ec9f1a304a1dc5a6c25681. It breaks
debuggability of qemu and is no longer needed as the problem has
now been addressed in a different way.

Instead we provide a comment about why these signals must be
handled asynchronously.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
[PMM: added comment]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Jan Kiszka 2014-10-27 14:13:02 +00:00 committed by Peter Maydell
parent 817ef04db2
commit 3e9418e160
1 changed files with 5 additions and 3 deletions
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8
main-loop.c
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@ -84,9 +84,11 @@ static int qemu_signal_init(void)
sigaddset(&set, SIGIO); sigaddset(&set, SIGIO);
sigaddset(&set, SIGALRM); sigaddset(&set, SIGALRM);
sigaddset(&set, SIGBUS); sigaddset(&set, SIGBUS);
sigaddset(&set, SIGINT); /* SIGINT cannot be handled via signalfd, so that ^C can be used
sigaddset(&set, SIGHUP); * to interrupt QEMU when it is being run under gdb. SIGHUP and
sigaddset(&set, SIGTERM); * SIGTERM are also handled asynchronously, even though it is not
* strictly necessary, because they use the same handler as SIGINT.
*/
pthread_sigmask(SIG_BLOCK, &set, NULL); pthread_sigmask(SIG_BLOCK, &set, NULL);
sigdelset(&set, SIG_IPI); sigdelset(&set, SIG_IPI);