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-rw-r--r--sysdeps/unix/sysv/linux/internal-signals.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/internal-signals.h b/sysdeps/unix/sysv/linux/internal-signals.h
index a6fae59aaa..6e3a3d7692 100644
--- a/sysdeps/unix/sysv/linux/internal-signals.h
+++ b/sysdeps/unix/sysv/linux/internal-signals.h
@@ -90,6 +90,15 @@ internal_signal_restore_set (const internal_sigset_t *set)
 			 __NSIG_BYTES);
 }
 
+static inline void
+internal_signal_unblock_signal (int sig)
+{
+  internal_sigset_t set;
+  internal_sigemptyset (&set);
+  internal_sigaddset (&set, sig);
+  INTERNAL_SYSCALL_CALL (rt_sigprocmask, SIG_UNBLOCK, &set, NULL,
+			 __NSIG_BYTES);
+}
 
 /* It is used on timer_create code directly on sigwaitinfo call, so it can not
    use the internal_sigset_t definitions.  */