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[PULL 5/9] linux-user: Let sigaction query SIGKILL/SIGSTOP
From: |
Laurent Vivier |
Subject: |
[PULL 5/9] linux-user: Let sigaction query SIGKILL/SIGSTOP |
Date: |
Mon, 21 Jun 2021 13:04:41 +0200 |
From: Ilya Leoshkevich <iii@linux.ibm.com>
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>
---
linux-user/signal.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 0f19c59deee9..a8faea6f0909 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -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;
}
--
2.31.1
- [PULL 0/9] Linux user for 6.1 patches, Laurent Vivier, 2021/06/21
- [PULL 2/9] linux-user: Disable static assert involving __SIGRTMAX if it is missing, Laurent Vivier, 2021/06/21
- [PULL 1/9] linux-user: Set CF_PARALLEL when mapping shared memory, Laurent Vivier, 2021/06/21
- [PULL 4/9] linux-user: Implement pivot_root, Laurent Vivier, 2021/06/21
- [PULL 5/9] linux-user: Let sigaction query SIGKILL/SIGSTOP,
Laurent Vivier <=
- [PULL 9/9] linux-user: Use public sigev_notify_thread_id member if available, Laurent Vivier, 2021/06/21
- [PULL 7/9] linux-user: Check for ieee128 fpbits in PPC64 HWCAP2 feature list, Laurent Vivier, 2021/06/21
- [PULL 8/9] linux-user: Fix incorrect use of feature-test-macros, Laurent Vivier, 2021/06/21
- [PULL 3/9] linux-user/trace-events: fix minor typo in format string, Laurent Vivier, 2021/06/21
- [PULL 6/9] tests/tcg/linux-test: Check that sigaction can query SIGKILL/SIGSTOP, Laurent Vivier, 2021/06/21
- Re: [PULL 0/9] Linux user for 6.1 patches, Peter Maydell, 2021/06/22