runtime: fix build on openbsd

R=golang-dev, jsing
CC=golang-dev
https://golang.org/cl/7312104

diff --git a/src/pkg/runtime/thread_openbsd.c b/src/pkg/runtime/thread_openbsd.c
index 99c4db972cbb2f63f6a8cff4df31d11718bfcfd6..2900f370b7c6fdd6cf6896c1507f83ede73c7799 100644 (file)
--- a/src/pkg/runtime/thread_openbsd.c
+++ b/src/pkg/runtime/thread_openbsd.c
@@ -172,7 +172,7 @@ runtime·minit(void)
        // Initialize signal handling
        m->gsignal = runtime·malg(32*1024);
        runtime·signalstack((byte*)m->gsignal->stackguard - StackGuard, 32*1024);
-       runtime·sigprocmask(SIG_SETMASK, &sigset_none, nil, sizeof sigset_none);
+       runtime·sigprocmask(SIG_SETMASK, sigset_none);
 }
 
 void