1 files changed, 34 insertions, 0 deletions
diff --git a/lib/libc/sys/w_vfork.c b/lib/libc/sys/w_vfork.c
new file mode 100644
index 00000000000..9716f57ec6b
--- /dev/null
+++ b/lib/libc/sys/w_vfork.c
@@ -0,0 +1,34 @@
+/*	$OpenBSD: w_vfork.c,v 1.1 2016/05/07 19:05:22 guenther Exp $ */
+/*
+ * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <tib.h>
+#include <unistd.h>
+#include "thread_private.h"
+
+pid_t
+WRAP(vfork)(void)
+{
+	pid_t newid;
+
+	if (_thread_cb.tc_vfork != NULL)
+		return (_thread_cb.tc_vfork());
+	newid = vfork();
+	if (newid == 0)
+		TIB_GET()->tib_tid = getthrid();
+	return newid;
+}
+DEF_WRAP(vfork);