Differential D14323 Diff 39193 sys/mips/include/stdarg.h

Changeset View

Standalone View

sys/mips/include/stdarg.h

	/*			/*-
	* JNPR: stdarg.h,v 1.3 2006/09/15 12:52:34 katta			* SPDX-License-Identifier: BSD-2-Clause
				*
				* Copyright (c) 2017 Poul-Henning Kamp. All rights reserved.
				*
				* Redistribution and use in source and binary forms, with or without
				* modification, are permitted provided that the following conditions
				* are met:
				* 1. Redistributions of source code must retain the above copyright
				* notice, this list of conditions and the following disclaimer.
				* 2. Redistributions in binary form must reproduce the above copyright
				* notice, this list of conditions and the following disclaimer in the
				* documentation and/or other materials provided with the distribution.
				*
				* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
				* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
				* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
				* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
				* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
				* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
				* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
				* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
				* SUCH DAMAGE.
				*
	* $FreeBSD$			* $FreeBSD$
	*/			*/

	#ifndef _MACHINE_STDARG_H_			#ifndef _MACHINE_STDARG_H_
	#define _MACHINE_STDARG_H_			#define _MACHINE_STDARG_H_
	#include <sys/cdefs.h>
	#include <sys/_types.h>

				#include <sys/_stdarg.h>

	#if __GNUC__ >= 3			#ifndef va_start
				#error this file needs to be ported to your compiler
	#ifndef _VA_LIST_DECLARED
	#define _VA_LIST_DECLARED
	typedef __va_list va_list;
	#endif			#endif
	#define va_start(v,l) __builtin_va_start((v),l)
	#define va_end __builtin_va_end
	#define va_arg __builtin_va_arg
	#define va_copy __builtin_va_copy

	#else /* __GNUC__ */			#endif /* !_MACHINE_STDARG_H_ */


	/* ---------------------------------------- */
	/* VARARGS for MIPS/GNU CC */
	/* ---------------------------------------- */

	#include <machine/endian.h>

	/* These macros implement varargs for GNU C--either traditional or ANSI. */

	/* Define __gnuc_va_list. */

	#ifndef __GNUC_VA_LIST
	#define __GNUC_VA_LIST

	typedef char * __gnuc_va_list;
	typedef __gnuc_va_list va_list;

	#endif /* ! __GNUC_VA_LIST */

	/* If this is for internal libc use, don't define anything but
	__gnuc_va_list. */

	#ifndef _VA_MIPS_H_ENUM
	#define _VA_MIPS_H_ENUM
	enum {
	__no_type_class = -1,
	__void_type_class,
	__integer_type_class,
	__char_type_class,
	__enumeral_type_class,
	__boolean_type_class,
	__pointer_type_class,
	__reference_type_class,
	__offset_type_class,
	__real_type_class,
	__complex_type_class,
	__function_type_class,
	__method_type_class,
	__record_type_class,
	__union_type_class,
	__array_type_class,
	__string_type_class,
	__set_type_class,
	__file_type_class,
	__lang_type_class
	};
	#endif

	/* In GCC version 2, we want an ellipsis at the end of the declaration
	of the argument list. GCC version 1 can't parse it. */

	#if __GNUC__ > 1
	#define __va_ellipsis ...
	#else
	#define __va_ellipsis
	#endif


	#define va_start(__AP, __LASTARG) \
	(__AP = (__gnuc_va_list) __builtin_next_arg (__LASTARG))

	#define va_end(__AP) ((void)0)


	/* We cast to void * and then to TYPE * because this avoids
	a warning about increasing the alignment requirement. */
	/* The __mips64 cases are reversed from the 32 bit cases, because the standard
	32 bit calling convention left-aligns all parameters smaller than a word,
	whereas the __mips64 calling convention does not (and hence they are
	right aligned). */

	#ifdef __mips64

	#define __va_rounded_size(__TYPE) (((sizeof (__TYPE) + 8 - 1) / 8) * 8)

	#define __va_reg_size 8

	#if defined(__MIPSEB__) \|\| (BYTE_ORDER == BIG_ENDIAN)
	#define va_arg(__AP, __type) \
	((__type ) (void ) (__AP = (char *) \
	((((__PTRDIFF_TYPE__)__AP + 8 - 1) & -8) \
	+ __va_rounded_size (__type))))[-1]
	#else /* ! __MIPSEB__ && !BYTE_ORDER == BIG_ENDIAN */
	#define va_arg(__AP, __type) \
	((__AP = (char *) ((((__PTRDIFF_TYPE__)__AP + 8 - 1) & -8) \
	+ __va_rounded_size (__type))), \
	(__type ) (void *) (__AP - __va_rounded_size (__type)))
	#endif /* ! __MIPSEB__ && !BYTE_ORDER == BIG_ENDIAN */

	#else /* ! __mips64 */

	#define __va_rounded_size(__TYPE) \
	(((sizeof (__TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))

	#define __va_reg_size 4

	#if defined(__MIPSEB__) \|\| (BYTE_ORDER == BIG_ENDIAN)
	/* For big-endian machines. */
	#define va_arg(__AP, __type) \
	((__AP = (char *) ((__alignof__ (__type) > 4 \
	? ((__PTRDIFF_TYPE__)__AP + 8 - 1) & -8 \
	: ((__PTRDIFF_TYPE__)__AP + 4 - 1) & -4) \
	+ __va_rounded_size (__type))), \
	(__type ) (void *) (__AP - __va_rounded_size (__type)))
	#else /* ! __MIPSEB__ && !BYTE_ORDER == BIG_ENDIAN */
	/* For little-endian machines. */
	#define va_arg(__AP, __type) \
	((__type ) (void ) (__AP = (char *) ((__alignof__(__type) > 4 \
	? ((__PTRDIFF_TYPE__)__AP + 8 - 1) & -8 \
	: ((__PTRDIFF_TYPE__)__AP + 4 - 1) & -4) \
	+ __va_rounded_size(__type))))[-1]
	#endif /* ! __MIPSEB__ && !BYTE_ORDER == BIG_ENDIAN */
	#endif /* ! __mips64 */

	/* Copy __gnuc_va_list into another variable of this type. */
	#define __va_copy(dest, src) (dest) = (src)
	#define va_copy(dest, src) (dest) = (src)

	#endif /* __GNUC__ */
	#endif /* _MACHINE_STDARG_H_ */