1 files changed, 56 insertions, 0 deletions
diff --git a/sys/sys/varargs.h b/sys/sys/varargs.h
new file mode 100644
index 0000000..bdd161b
--- /dev/null
+++ b/sys/sys/varargs.h
@@ -0,0 +1,56 @@
+/*	$OpenBSD: varargs.h,v 1.3 2019/12/07 06:55:20 visa Exp $ */
+/*
+ * Copyright (c) 2003, 2004  Marc espie <espie@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.
+ */
+
+#ifndef _VARARGS_H_
+#define _VARARGS_H_
+
+#if defined(__GNUC__) && __GNUC__ >= 3
+/* These macros implement traditional (non-ANSI) varargs
+   for GNU C.  */
+
+#define va_alist  __builtin_va_alist
+
+#define	__va_ellipsis	...
+
+/* ??? We don't process attributes correctly in K&R argument context.  */
+typedef int __builtin_va_alist_t __attribute__((__mode__(__word__)));
+
+/* ??? It would be nice to get rid of the ellipsis here.  It causes
+   current_function_varargs to be set in cc1.  */
+#define va_dcl		__builtin_va_alist_t __builtin_va_alist; ...
+
+/* Define __gnuc_va_list, just as in stdarg.h.  */
+
+#ifndef __GNUC_VA_LIST
+#define __GNUC_VA_LIST
+typedef __builtin_va_list __gnuc_va_list;
+#endif
+
+#define va_start(v)	__builtin_varargs_start((v))
+#define va_end		__builtin_va_end
+#define va_arg		__builtin_va_arg
+#define __va_copy(d,s)	__builtin_va_copy((d),(s))
+
+/* Define va_list from __gnuc_va_list.  */
+
+typedef __gnuc_va_list va_list;
+
+#else
+#error "unsupported compiler"
+#endif
+
+#endif /* _VARARGS_H_ */