1 files changed, 60 insertions, 0 deletions
diff --git a/usr/src/lib/libc/port/sys/ucontext.c b/usr/src/lib/libc/port/sys/ucontext.c
new file mode 100644
index 0000000000..56d3984691
--- /dev/null
+++ b/usr/src/lib/libc/port/sys/ucontext.c
@@ -0,0 +1,60 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#pragma weak getustack = _getustack
+#pragma weak setustack = _setustack
+#pragma weak _private_setustack = _setustack
+#pragma weak __setcontext_syscall = __setcontext
+
+#include "synonyms.h"
+#include <ucontext.h>
+#include <sys/syscall.h>
+
+/*
+ * __getcontext() must be implemented in assembler, as opposed to
+ * the other members of the SYS_context family (see __getcontext.s)
+ * because we must be careful to get the precise context of the caller.
+ */
+
+int
+__setcontext(const ucontext_t *ucp)
+{
+	return (syscall(SYS_context, 1, ucp));
+}
+
+int
+getustack(stack_t **spp)
+{
+	return (syscall(SYS_context, 2, spp));
+}
+
+int
+setustack(stack_t *sp)
+{
+	return (syscall(SYS_context, 3, sp));
+}