overhaul implementation-internal signal protections

[musl] / src / thread / __rsyscall.c

diff --git a/src/thread/__rsyscall.c b/src/thread/__rsyscall.c
index 61d41df..e885d9e 100644 (file)
--- a/src/thread/__rsyscall.c
+++ b/src/thread/__rsyscall.c
@@ -56,8 +56,7 @@ int __rsyscall(int nr, long a, long b, long c, long d, long e, long f)
        while ((i=rs.blocks))
                __wait(&rs.blocks, 0, i, 1);
 
-       sigfillset(&set);
-       __libc_sigprocmask(SIG_BLOCK, &set, &set);
+       __syscall(SYS_rt_sigprocmask, SIG_BLOCK, (uint64_t[]){-1}, &set, 8);
 
        if (!rs.init) {
                struct sigaction sa = {
@@ -88,7 +87,7 @@ int __rsyscall(int nr, long a, long b, long c, long d, long e, long f)
        }
 
        /* Handle any lingering signals with no-op */
-       __libc_sigprocmask(SIG_UNBLOCK, &set, &set);
+       __syscall(SYS_rt_sigprocmask, SIG_SETMASK, &set, &set, 8);
 
        /* Resume other threads' signal handlers and wait for them */
        rs.hold = 0;