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| author | Alex Barcelo <abarcelo@ac.upc.edu> | 2014-03-14 14:36:55 +0000 |
|---|---|---|
| committer | Riku Voipio <riku.voipio@linaro.org> | 2014-03-17 11:44:32 +0200 |
| commit | 1c275925bfbbc2de84a8f0e09d1dd70bbefb6da3 (patch) | |
| tree | 8b95260e92c5032bb591afd062dea2360edeaeca /linux-user/qemu.h | |
| parent | 6b1275ff15b205a7738aa8ba96fe355f097b5879 (diff) | |
| download | qemu-1c275925bfbbc2de84a8f0e09d1dd70bbefb6da3.tar.gz | |
signal: added a wrapper for sigprocmask function
Create a wrapper for signal mask changes initiated by the guest;
(this includes syscalls and also the sigreturns from signal.c)
this will give us a place to put code which prevents the guest
from changing the handling of signals used by QEMU itself
internally.
The wrapper is called from all the guest-initiated sigprocmask, but
is not called from internal qemu sigprocmask calls.
Signed-off-by: Alex Barcelo <abarcelo@ac.upc.edu>
[PMM: Added calls to wrapper for sigprocmask uses in signal.c
when setting the signal mask on entry and exit from signal
handlers, since these also are guest-provided signal masks.]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Diffstat (limited to 'linux-user/qemu.h')
| -rw-r--r-- | linux-user/qemu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/linux-user/qemu.h b/linux-user/qemu.h index c2f74f33d6..4d24e74775 100644 --- a/linux-user/qemu.h +++ b/linux-user/qemu.h @@ -235,6 +235,7 @@ int host_to_target_signal(int sig); long do_sigreturn(CPUArchState *env); long do_rt_sigreturn(CPUArchState *env); abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp); +int do_sigprocmask(int how, const sigset_t *set, sigset_t *oldset); #ifdef TARGET_I386 /* vm86.c */ |