initial import

sysdeps/generic/varargs.h

@@ -0,0 +1,61 @@
+/* Copyright (C) 1991 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_VARARGS_H
+
+#define	_VARARGS_H	1
+#include <features.h>
+
+#ifdef	__GNUC__
+
+#define va_alist  __builtin_va_alist
+#define va_dcl    int __builtin_va_alist;
+#define va_list   char *
+
+#ifdef __sparc__
+#define va_start(AP) 						\
+ (__builtin_saveregs (),					\
+  AP = ((void *) &__builtin_va_alist))
+#else
+#define va_start(AP)  AP=(char *) &__builtin_va_alist
+#endif
+#define va_end(AP)
+
+#define __va_rounded_size(TYPE)  \
+  (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
+
+#define va_arg(AP, TYPE)					\
+ (*((TYPE *) (AP += __va_rounded_size (TYPE),			\
+	      AP - __va_rounded_size (TYPE))))
+
+#else	/* Not GCC.  */
+
+/* Implement varargs on top of our stdarg implementation.  */
+
+#include <stdarg.h>
+
+#define	va_alist	__va_fakearg
+#define	va_dcl		int __va_fakearg;
+
+#undef	va_start
+#define	va_start(ap)	(__va_start((ap), __va_fakearg), \
+			 (ap) -= sizeof(__va_fakearg))
+
+#endif	/* GCC.  */
+
+#endif	/* varargs.h  */