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Annotation of GNUtools/cc/va-m88k.h, revision 1.1

1.1     ! root        1: /* GNU C varargs support for the Motorola 88100  */
        !             2: 
        !             3: /* Define __gnuc_va_list.  */
        !             4: 
        !             5: #ifndef __GNUC_VA_LIST
        !             6: #define __GNUC_VA_LIST
        !             7: 
        !             8: typedef struct
        !             9: {
        !            10:   int  __va_arg;               /* argument number */
        !            11:   int *__va_stk;               /* start of args passed on stack */
        !            12:   int *__va_reg;               /* start of args passed in regs */
        !            13: } __gnuc_va_list;
        !            14: #endif /* not __GNUC_VA_LIST */
        !            15: 
        !            16: /* If this is for internal libc use, don't define anything but
        !            17:    __gnuc_va_list.  */
        !            18: #if defined (_STDARG_H) || defined (_VARARGS_H)
        !            19: 
        !            20: #ifdef _STDARG_H /* stdarg.h support */
        !            21: 
        !            22: #if __GNUC__ > 1 /* GCC 2.0 and beyond */
        !            23: #define va_start(AP,LASTARG) ((AP) = *(__gnuc_va_list *)__builtin_saveregs())
        !            24: #else
        !            25: #define va_start(AP,LASTARG) \
        !            26:   ( (AP).__va_reg = (int *) __builtin_saveregs2(0), \
        !            27:     (AP).__va_stk = (int *) __builtin_argptr(), \
        !            28:     (AP).__va_arg = (int) (__builtin_argsize() + 3) / 4 )
        !            29: #endif
        !            30: 
        !            31: #else /* varargs.h support */
        !            32: 
        !            33: #if __GNUC__ > 1 /* GCC 2.0 and beyond */
        !            34: #define va_start(AP) ((AP) = *(__gnuc_va_list *)__builtin_saveregs())
        !            35: #else
        !            36: #define va_start(AP) \
        !            37:   ( (AP).__va_reg = (int *) __builtin_saveregs2(1), \
        !            38:     (AP).__va_stk = (int *) __builtin_argptr(), \
        !            39:     (AP).__va_arg = (int) (__builtin_argsize() - 4 + 3) / 4 )
        !            40: #endif
        !            41: #define va_alist __va_1st_arg
        !            42: #define va_dcl register int va_alist;
        !            43: 
        !            44: #endif /* _STDARG_H */
        !            45: 
        !            46: /* Avoid trouble between this file and _int_varargs.h under DG/UX.  This file
        !            47:    can be included by <stdio.h> and others and provides definitions of
        !            48:    __va_size and __va_reg_p and  a va_list typedef.  Avoid defining va_list
        !            49:    again with _VA_LIST.  */
        !            50: #ifdef __INT_VARARGS_H
        !            51: #undef __va_size
        !            52: #undef __va_reg_p
        !            53: #define __gnuc_va_list va_list
        !            54: #define _VA_LIST
        !            55: #define _VA_LIST_
        !            56: #else
        !            57: /* Similarly, if this gets included first, do nothing in _int_varargs.h.  */
        !            58: #define __INT_VARARGS_H
        !            59: #endif
        !            60: 
        !            61: #define __va_reg_p(TYPE) \
        !            62:   (__builtin_classify_type(*(TYPE *)0) < 12 \
        !            63:    ? sizeof(TYPE) <= 8 : sizeof(TYPE) == 4 && __alignof__(TYPE) == 4)
        !            64: 
        !            65: #define        __va_size(TYPE) ((sizeof(TYPE) + 3) >> 2)
        !            66: 
        !            67: /* We cast to void * and then to TYPE * because this avoids
        !            68:    a warning about increasing the alignment requirement.  */
        !            69: #define va_arg(AP,TYPE)                                                           \
        !            70:   ( (AP).__va_arg = (((AP).__va_arg + (1 << (__alignof__(TYPE) >> 3)) - 1) \
        !            71:                     & ~((1 << (__alignof__(TYPE) >> 3)) - 1))             \
        !            72:     + __va_size(TYPE),                                                    \
        !            73:     *((TYPE *) (void *) ((__va_reg_p(TYPE)                                \
        !            74:                          && (AP).__va_arg < 8 + __va_size(TYPE)           \
        !            75:                          ? (AP).__va_reg : (AP).__va_stk)                 \
        !            76:                         + ((AP).__va_arg - __va_size(TYPE)))))
        !            77: 
        !            78: #define va_end(AP)
        !            79: 
        !            80: #endif /* defined (_STDARG_H) || defined (_VARARGS_H) */

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