1 /* 2 * 3 * Copyright (C) 2008 Advanced Micro Devices, Inc. 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 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _LIBPAYLOAD_STDARG_H 30 #define _LIBPAYLOAD_STDARG_H 31 32 #include <stddef.h> 33 34 /* With GCC we use -nostdinc -ffreestanding to keep out system includes. 35 * Unfortunately this also gets us rid of the _compiler_ includes, like 36 * stdarg.h. To work around the issue, we define varargs directly here. 37 * On LLVM we can still just include stdarg.h. 38 */ 39 #ifdef __GNUC__ 40 #define va_start(v,l) __builtin_va_start(v,l) 41 #define va_end(v) __builtin_va_end(v) 42 #define va_arg(v,l) __builtin_va_arg(v,l) 43 #define va_copy(d,s) __builtin_va_copy(d,s) 44 typedef __builtin_va_list va_list; 45 #else 46 #include_next <stdarg.h> 47 #endif 48 49 /** 50 * @defgroup vprintf Varargs print functions 51 * @{ 52 */ 53 int vsnprintf(char *str, size_t size, const char *fmt, va_list ap); 54 int vsprintf(char *str, const char *fmt, va_list ap); 55 int vprintf(const char *fmt, va_list ap); 56 /** @} */ 57 58 #endif 59