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linux-user: Let sigaction query SIGKILL/SIGSTOP

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The kernel allows doing this, so let's allow this in qemu as well.
Valgrind relies on this.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210601145600.3131040-2-iii@linux.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Ilya Leoshkevich 2021-06-01 16:55:59 +02:00 committed by Laurent Vivier
parent e10fbe8f34
commit ee3500d33a
1 changed files with 5 additions and 1 deletions
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6
linux-user/signal.c
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@ -853,7 +853,11 @@ int do_sigaction(int sig, const struct target_sigaction *act,
trace_signal_do_sigaction_guest(sig, TARGET_NSIG);
if (sig < 1 || sig > TARGET_NSIG || sig == TARGET_SIGKILL || sig == TARGET_SIGSTOP) {
if (sig < 1 || sig > TARGET_NSIG) {
return -TARGET_EINVAL;
}
if (act && (sig == TARGET_SIGKILL || sig == TARGET_SIGSTOP)) {
return -TARGET_EINVAL;
}