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Diffstat (limited to 'sys/arch/alpha/include/varargs.h')
| -rw-r--r-- | sys/arch/alpha/include/varargs.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/sys/arch/alpha/include/varargs.h b/sys/arch/alpha/include/varargs.h new file mode 100644 index 00000000000..183ae618b73 --- /dev/null +++ b/sys/arch/alpha/include/varargs.h @@ -0,0 +1,75 @@ +/* $NetBSD: varargs.h,v 1.2 1995/02/16 03:08:11 cgd Exp $ */ + +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * (c) UNIX System Laboratories, Inc. + * All or some portions of this file are derived from material licensed + * to the University of California by American Telephone and Telegraph + * Co. or Unix System Laboratories, Inc. and are reproduced herein with + * the permission of UNIX System Laboratories, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)varargs.h 8.2 (Berkeley) 3/22/94 + */ + +#ifndef _VARARGS_H_ +#define _VARARGS_H_ + +#include <machine/ansi.h> + +typedef _BSD_VA_LIST_ va_list; + +/* + * Note that these macros are significantly different than the 'standard' + * ones. On the alpha, all arguments are passed as 64 bit quantities. + */ + +#define va_alist __builtin_va_alist +#define va_dcl va_list __builtin_va_alist; ... + +#define va_start(a) \ + ((a) = *(va_list *)__builtin_saveregs()) + +#define __va_size(type) \ + (((sizeof(type) + sizeof(long) - 1) / sizeof(long)) * sizeof(long)) + +#define __REAL_TYPE_CLASS 8 +#define __va_arg_offset(a, type) \ + ((__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS && \ + (a).offset <= (6 * 8) ? -(6 * 8) : 0) - __va_size(type)) + +#define va_arg(a, type) \ + (*((a).offset += __va_size(type), \ + (type *)((a).base + (a).offset + __va_arg_offset(a, type)))) + +#define va_end(a) ((void) 0) + +#endif /* !_VARARGS_H_ */ |