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papermario/include/va-mips.h
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2021-01-15 12:18:27 -05:00

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/* ---------------------------------------- */
/* VARARGS for MIPS/GNU CC */
/* */
/* */
/* */
/* */
/* ---------------------------------------- */
/* These macros implement varargs for GNU C--either traditional or ANSI. */
/* Define __gnuc_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. */
#if defined (_STDARG_H) || defined (_VARARGS_H)
#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
#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
/* Get definitions for _MIPS_SIM_ABI64 etc. */
#ifdef _MIPS_SIM
#include <sgidefs.h>
#endif
#ifdef _STDARG_H
#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)) */
#else /* ! _STDARG_H */
#define va_alist __builtin_va_alist
#ifdef __mips64
/* This assumes that `long long int' is always a 64 bit type. */
#define va_dcl long long int __builtin_va_alist; __va_ellipsis
#else
#define va_dcl int __builtin_va_alist; __va_ellipsis
#endif
#if defined (__mips_eabi)
#if ! defined (__mips_soft_float) && ! defined (__mips_single_float)
#ifdef __mips64
#define va_start(__AP) \
(__AP.__gp_regs = ((char *) __builtin_next_arg () \
- (__builtin_args_info (2) < 8 \
? (8 - __builtin_args_info (2)) * __va_reg_size \
: __va_reg_size)), \
__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) \
(__AP.__gp_regs = ((char *) __builtin_next_arg () \
- (__builtin_args_info (2) < 8 \
? (8 - __builtin_args_info (2)) * __va_reg_size \
: __va_reg_size)), \
__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) \
(__AP = ((__gnuc_va_list) __builtin_next_arg () \
- (__builtin_args_info (2) >= 8 ? __va_reg_size \
: (8 - __builtin_args_info (2)) * __va_reg_size)))
#endif /* ! (! defined (__mips_soft_float) && ! defined (__mips_single_float)) */
/* Need alternate code for _MIPS_SIM_ABI64. */
#elif defined(_MIPS_SIM) && (_MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32)
#define va_start(__AP) \
(__AP = (__gnuc_va_list) __builtin_next_arg () \
+ (__builtin_args_info (2) >= 8 ? -8 : 0))
#else
#define va_start(__AP) __AP = (char *) &__builtin_va_alist
#endif
#endif /* ! _STDARG_H */
#ifndef va_end
void va_end(__gnuc_va_list); /* Defined in libgcc.a */
#endif
#define va_end(__AP) ((void)0)
#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 *) (((int) __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 \
? ((int)__AP + 8 - 1) & -8 \
: ((int)__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 \
? ((int)__AP + 8 - 1) & -8 \
: ((int)__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)
#endif /* defined (_STDARG_H) || defined (_VARARGS_H) */
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