source: mainline/kernel/generic/include/stdarg.h@ 3b3faf51

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 3b3faf51 was 6ab8697, checked in by Martin Decky <martin@…>, 16 years ago

use builtin_va_* for va_* functions and va_list type
(this is probably safer than our own implementation since it respects the particular ABI used by the compiler)
this fixes kernel printf() when using clang

  • Property mode set to 100644
File size: 1.9 KB
Line 
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 * Variable argument list manipulation macros
37 * for all architectures with compiler support for __builtin_va_*.
38 */
39
40#ifndef KERN_STDARG_H_
41#define KERN_STDARG_H_
42
43typedef __builtin_va_list va_list;
44
45#define va_start(ap, last) __builtin_va_start(ap, last)
46#define va_arg(ap, type) __builtin_va_arg(ap, type)
47#define va_end(ap) __builtin_va_end(ap)
48#define va_copy(dst, src) __builtin_va_copy(dst, src)
49
50#endif
51
52/** @}
53 */
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