99a8287f08
Add the builtin to copy variadic lists/arguments. Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com> Change-Id: I4507b901bdce052c5d1701fdf825eb8a96a5b55a Reviewed-on: https://review.coreboot.org/c/coreboot/+/77097 Reviewed-by: Martin L Roth <gaumless@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
59 lines
2.3 KiB
C
59 lines
2.3 KiB
C
/*
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*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _LIBPAYLOAD_STDARG_H
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#define _LIBPAYLOAD_STDARG_H
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#include <stddef.h>
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/* With GCC we use -nostdinc -ffreestanding to keep out system includes.
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* Unfortunately this also gets us rid of the _compiler_ includes, like
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* stdarg.h. To work around the issue, we define varargs directly here.
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* On LLVM we can still just include stdarg.h.
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*/
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#ifdef __GNUC__
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#define va_start(v,l) __builtin_va_start(v,l)
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#define va_end(v) __builtin_va_end(v)
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#define va_arg(v,l) __builtin_va_arg(v,l)
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#define va_copy(d,s) __builtin_va_copy(d,s)
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typedef __builtin_va_list va_list;
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#else
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#include_next <stdarg.h>
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#endif
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/**
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* @defgroup vprintf Varargs print functions
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* @{
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*/
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int vsnprintf(char *str, size_t size, const char *fmt, va_list ap);
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int vsprintf(char *str, const char *fmt, va_list ap);
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int vprintf(const char *fmt, va_list ap);
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/** @} */
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#endif
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