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Annotation of gcc/va-m88k.h, revision 1.1.1.1

1.1       root        1: /* This file contains changes made by Data General, December 1989.  */
                      2: /* GNU C varargs support for the Motorola 88100  */
                      3: 
                      4: #ifndef __INT_VARARGS_H                /* Prevent multiple inclusions of this file */
                      5: #define __INT_VARARGS_H                /* and _int_varargs.h under DG/UX */
                      6: 
                      7: typedef struct
                      8: {
                      9:   int  __va_arg;               /* argument number */
                     10:   int *__va_stk;               /* start of args passed on stack */
                     11:   int *__va_reg;               /* start of args passed in regs */
                     12: } va_list;
                     13: 
                     14: #else
                     15: #undef __va_size
                     16: #undef __va_reg_p
                     17: #endif /* __INT_VARARGS_H */
                     18: 
                     19: #ifdef _STDARG_H /* stdarg.h support */
                     20: 
                     21: #if __GNUC__ > 1 /* GCC 2.0 and beyond */
                     22: #define va_start(AP,LASTARG) ((AP) = *(va_list *)__builtin_saveregs())
                     23: #else
                     24: #define va_start(AP,LASTARG) \
                     25:   ( (AP).__va_reg = (int *) __builtin_saveregs2(0), \
                     26:     (AP).__va_stk = (int *) __builtin_argptr(), \
                     27:     (AP).__va_arg = (int) (__builtin_argsize() + 3) / 4 )
                     28: #endif
                     29: 
                     30: #else /* varargs.h support */
                     31: 
                     32: #if __GNUC__ > 1 /* GCC 2.0 and beyond */
                     33: #define va_start(AP) ((AP) = *(va_list *)__builtin_saveregs())
                     34: #else
                     35: #define va_start(AP) \
                     36:   ( (AP).__va_reg = (int *) __builtin_saveregs2(1), \
                     37:     (AP).__va_stk = (int *) __builtin_argptr(), \
                     38:     (AP).__va_arg = (int) (__builtin_argsize() - 4 + 3) / 4 )
                     39: #endif
                     40: #define va_alist __va_1st_arg
                     41: #define va_dcl register int va_alist;
                     42: 
                     43: #endif /* _STDARG_H */
                     44: 
                     45: #define __va_reg_p(TYPE) \
                     46:   (__builtin_classify_type(*(TYPE *)0) < 12 \
                     47:    ? sizeof(TYPE) <= 8 : sizeof(TYPE) == 4 && __alignof__(TYPE) == 4)
                     48: 
                     49: #define        __va_size(TYPE) ((sizeof(TYPE) + 3) >> 2)
                     50: 
                     51: #define va_arg(AP,TYPE) \
                     52:   ( (AP).__va_arg = (((AP).__va_arg + (1 << (__alignof__(TYPE) >> 3)) - 1) \
                     53:                     & ~((1 << (__alignof__(TYPE) >> 3)) - 1)) \
                     54:     + __va_size(TYPE), \
                     55:     *((TYPE *) ((__va_reg_p(TYPE) && (AP).__va_arg < 8 + __va_size(TYPE) \
                     56:                 ? (AP).__va_reg : (AP).__va_stk) \
                     57:                + ((AP).__va_arg - __va_size(TYPE)))))
                     58: 
                     59: #define va_end(AP)

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