source: mainline/kernel/generic/include/stackarg.h@ cfa70add

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since cfa70add was 42d3be3, checked in by Martin Decky <martin@…>, 19 years ago

formatting changes

  • Property mode set to 100644
File size: 2.0 KB
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1/*
2 * Copyright (C) 2005 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup generic
30 * @{
31 */
32/** @file
33 */
34
35
36/*
37 * Variable argument list manipulation macros
38 * for architectures using stack to pass arguments.
39 */
40
41#ifndef __STACKARG_H__
42#define __STACKARG_H__
43
44#include <arch/types.h>
45
46typedef struct va_list {
47 int pos;
48 uint8_t *last;
49} va_list;
50
51#define va_start(ap, lst) \
52 (ap).pos = sizeof(lst); \
53 (ap).last = (uint8_t *) &(lst)
54
55#define va_arg(ap, type) \
56 (*((type *)((ap).last + ((ap).pos += sizeof(type) ) - sizeof(type))))
57
58#define va_copy(dst,src) dst=src
59#define va_end(ap)
60
61
62#endif
63
64/** @}
65 */
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