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 |
46 | typedef __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 |
64 | typedef __builtin_va_list __gnuc_va_list; |
65 | |
66 | #endif /* __STDARG_H */ |
67 | |
68 | #endif /* XNU_KERNEL_PRIVATE */ |
69 | |