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