/* $OpenBSD: stdarg.h,v 1.6 2006/05/14 21:11:07 robert Exp $ */
/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)stdarg.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _MIPS_STDARG_H_
#define _MIPS_STDARG_H_
#include <sys/cdefs.h>
#include <machine/_types.h>
typedef __va_list va_list;
#ifndef __GNUC_VA_LIST
#define __GNUC_VA_LIST
#if defined (__mips_eabi) && ! defined (__mips_soft_float) && ! defined (__mips_single_float)
typedef struct {
/* Pointer to FP regs. */
char *__fp_regs;
/* Number of FP regs remaining. */
int __fp_left;
/* Pointer to GP regs followed by stack parameters. */
char *__gp_regs;
} __gnuc_va_list;
#else /* ! (defined (__mips_eabi) && ! defined (__mips_soft_float) && ! defined (__mips_single_float)) */
typedef char * __gnuc_va_list;
#endif /* ! (defined (__mips_eabi) && ! defined (__mips_soft_float) && ! defined (__mips_single_float)) */
#endif /* not __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
#define __va_ellipsis ...
#ifdef __mips64__
#define __va_rounded_size(__TYPE) \
(((sizeof (__TYPE) + 8 - 1) / 8) * 8)
#else
#define __va_rounded_size(__TYPE) \
(((sizeof (__TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
#endif
#ifdef __mips64__
#define __va_reg_size 8
#else
#define __va_reg_size 4
#endif
#if defined (__mips_eabi)
#if ! defined (__mips_soft_float) && ! defined (__mips_single_float)
#ifdef __mips64__
#define va_start(__AP, __LASTARG) \
(__AP.__gp_regs = ((char *) __builtin_next_arg (__LASTARG) \
- (__builtin_args_info (2) < 8 \
? (8 - __builtin_args_info (2)) * __va_reg_size \
: 0)), \
__AP.__fp_left = 8 - __builtin_args_info (3), \
__AP.__fp_regs = __AP.__gp_regs - __AP.__fp_left * __va_reg_size)
#else /* ! defined (__mips64__) */
#define va_start(__AP, __LASTARG) \
(__AP.__gp_regs = ((char *) __builtin_next_arg (__LASTARG) \
- (__builtin_args_info (2) < 8 \
? (8 - __builtin_args_info (2)) * __va_reg_size \
: 0)), \
__AP.__fp_left = (8 - __builtin_args_info (3)) / 2, \
__AP.__fp_regs = __AP.__gp_regs - __AP.__fp_left * 8, \
__AP.__fp_regs = (char *) ((int) __AP.__fp_regs & -8))
#endif /* ! defined (__mips64__) */
#else /* ! (! defined (__mips_soft_float) && ! defined (__mips_single_float) ) */
#define va_start(__AP, __LASTARG) \
(__AP = ((__gnuc_va_list) __builtin_next_arg (__LASTARG) \
- (__builtin_args_info (2) >= 8 ? 0 \
: (8 - __builtin_args_info (2)) * __va_reg_size)))
#endif /* ! (! defined (__mips_soft_float) && ! defined (__mips_single_float) ) */
#else /* ! defined (__mips_eabi) */
#define va_start(__AP, __LASTARG) \
(__AP = (__gnuc_va_list) __builtin_next_arg (__LASTARG))
#endif /* ! (defined (__mips_eabi) && ! defined (__mips_soft_float) && ! defined (__mips_single_float)) */
#ifndef va_end
void va_end (__gnuc_va_list); /* Defined in libgcc.a */
#endif
#define va_end(__AP)
#if defined (__mips_eabi)
#if ! defined (__mips_soft_float) && ! defined (__mips_single_float)
#ifdef __mips64__
#define __va_next_addr(__AP, __type) \
((__builtin_classify_type (*(__type *) 0) == __real_type_class \
&& __AP.__fp_left > 0) \
? (--__AP.__fp_left, (__AP.__fp_regs += 8) - 8) \
: (__AP.__gp_regs += __va_reg_size) - __va_reg_size)
#else
#define __va_next_addr(__AP, __type) \
((__builtin_classify_type (*(__type *) 0) == __real_type_class \
&& __AP.__fp_left > 0) \
? (--__AP.__fp_left, (__AP.__fp_regs += 8) - 8) \
: (((__builtin_classify_type (* (__type *) 0) < __record_type_class \
&& __alignof__ (__type) > 4) \
? __AP.__gp_regs = (char *) (((int) __AP.__gp_regs + 8 - 1) & -8) \
: (char *) 0), \
(__builtin_classify_type (* (__type *) 0) >= __record_type_class \
? (__AP.__gp_regs += __va_reg_size) - __va_reg_size \
: ((__AP.__gp_regs += __va_rounded_size (__type)) \
- __va_rounded_size (__type)))))
#endif
#else /* ! (! defined (__mips_soft_float) && ! defined (__mips_single_float)) */
#ifdef __mips64__
#define __va_next_addr(__AP, __type) \
((__AP += __va_reg_size) - __va_reg_size)
#else
#define __va_next_addr(__AP, __type) \
(((__builtin_classify_type (* (__type *) 0) < __record_type_class \
&& __alignof__ (__type) > 4) \
? __AP = (char *) (((__PTRDIFF_TYPE__) __AP + 8 - 1) & -8) \
: (char *) 0), \
(__builtin_classify_type (* (__type *) 0) >= __record_type_class \
? (__AP += __va_reg_size) - __va_reg_size \
: ((__AP += __va_rounded_size (__type)) \
- __va_rounded_size (__type))))
#endif
#endif /* ! (! defined (__mips_soft_float) && ! defined (__mips_single_float)) */
#ifdef __MIPSEB__
#define va_arg(__AP, __type) \
((__va_rounded_size (__type) <= __va_reg_size) \
? *(__type *) (void *) (__va_next_addr (__AP, __type) \
+ __va_reg_size \
- sizeof (__type)) \
: (__builtin_classify_type (*(__type *) 0) >= __record_type_class \
? **(__type **) (void *) (__va_next_addr (__AP, __type) \
+ __va_reg_size \
- sizeof (char *)) \
: *(__type *) (void *) __va_next_addr (__AP, __type)))
#else
#define va_arg(__AP, __type) \
((__va_rounded_size (__type) <= __va_reg_size) \
? *(__type *) (void *) __va_next_addr (__AP, __type) \
: (__builtin_classify_type (* (__type *) 0) >= __record_type_class \
? **(__type **) (void *) __va_next_addr (__AP, __type) \
: *(__type *) (void *) __va_next_addr (__AP, __type)))
#endif
#else /* ! defined (__mips_eabi) */
/* 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__
#ifdef __MIPSEB__
#define va_arg(__AP, __type) \
((__type *) (void *) (__AP = (char *) \
((((__PTRDIFF_TYPE__)__AP + 8 - 1) & -8) \
+ __va_rounded_size (__type))))[-1]
#else
#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
#else /* not __mips64__ */
#ifdef __MIPSEB__
/* 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
/* 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
#endif
#endif /* ! defined (__mips_eabi) */
/* Copy __gnuc_va_list into another variable of this type. */
#define __va_copy(dest, src) (dest) = (src)
#if __ISO_C_VISIBLE >= 1999
#define va_copy __va_copy
#endif
#endif /* !_MIPS_STDARG_H_ */
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