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Diffstat (limited to 'lib/libc/arch/amd64/sys/sigprocmask.S')
-rw-r--r--lib/libc/arch/amd64/sys/sigprocmask.S9
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/libc/arch/amd64/sys/sigprocmask.S b/lib/libc/arch/amd64/sys/sigprocmask.S
index 308c5800b50..ddcae14576c 100644
--- a/lib/libc/arch/amd64/sys/sigprocmask.S
+++ b/lib/libc/arch/amd64/sys/sigprocmask.S
@@ -1,4 +1,4 @@
-/* $OpenBSD: sigprocmask.S,v 1.9 2016/05/07 19:05:21 guenther Exp $ */
+/* $OpenBSD: sigprocmask.S,v 1.10 2023/01/11 01:55:17 mortimer Exp $ */
/* $NetBSD: sigprocmask.S,v 1.1 2001/06/19 00:25:06 fvdl Exp $ */
/*-
@@ -40,6 +40,8 @@
#include "SYS.h"
SYSENTRY_HIDDEN(sigprocmask)
+ RETGUARD_SETUP(_thread_sys_sigprocmask, r11);
+ RETGUARD_PUSH(r11);
testq %rsi,%rsi # check new sigset pointer
jnz 1f # if not null, indirect
movl $1,%edi # SIG_BLOCK
@@ -52,8 +54,11 @@ SYSENTRY_HIDDEN(sigprocmask)
movl %eax,(%rdx) # store old mask
3:
xorl %eax,%eax
- ret
+ jmp 2f
1:
SET_ERRNO
+2:
+ RETGUARD_POP(r11);
+ RETGUARD_CHECK(_thread_sys_sigprocmask, r11);
ret
SYSCALL_END_HIDDEN(sigprocmask)