1/*===---- stdarg.h - Variable argument handling ----------------------------===
2 *
3 * Copyright (c) 2008 Eli Friedman
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21 * THE SOFTWARE.
22 *
23 *===-----------------------------------------------------------------------===
24 */
25
26#if XNU_KERNEL_PRIVATE
27
28#include_next <stdarg.h>
29/* __STDARG_H guard defined */
30
31#elif (defined(__has_include) && __has_include(<__xnu_libcxx_sentinel.h>))
32
33#if !__has_include_next(<stdarg.h>)
34#error Do not build with -nostdinc (use GCC_USE_STANDARD_INCLUDE_SEARCHING=NO)
35#else
36#include_next <stdarg.h>
37/* __STDARG_H guard defined */
38#endif /* __has_include_next */
39
40#else /* XNU_KERNEL_PRIVATE */
41
42#ifndef __STDARG_H
43#define __STDARG_H
44
45#ifndef _VA_LIST
46typedef __builtin_va_list va_list;
47#define _VA_LIST
48#endif
49#define va_start(ap, param) __builtin_va_start(ap, param)
50#define va_end(ap) __builtin_va_end(ap)
51#define va_arg(ap, type) __builtin_va_arg(ap, type)
52
53/* GCC always defines __va_copy, but does not define va_copy unless in c99 mode
54 * or -ansi is not specified, since it was not part of C90.
55 */
56#define __va_copy(d, s) __builtin_va_copy(d,s)
57
58#if __STDC_VERSION__ >= 199900L || __cplusplus >= 201103L || !defined(__STRICT_ANSI__)
59#define va_copy(dest, src) __builtin_va_copy(dest, src)
60#endif
61
62/* Hack required to make standard headers work, at least on Ubuntu */
63#define __GNUC_VA_LIST 1
64typedef __builtin_va_list __gnuc_va_list;
65
66#endif /* __STDARG_H */
67
68#endif /* XNU_KERNEL_PRIVATE */
69