gcc/ginclude/va-m88k.h

   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 /* Call __builtin_next_arg even though we aren't using its value, so that
  23    we can verify that LASTARG is correct.  */
  24 #if __GNUC__ > 1 /* GCC 2.0 and beyond */
  25 #define va_start(AP,LASTARG)                            \
  26  (__builtin_next_arg (LASTARG),                         \
  27   (AP) = *(__gnuc_va_list *)__builtin_saveregs())
  28 #else
  29 #define va_start(AP,LASTARG) \
  30   ( (AP).__va_reg = (int *) __builtin_saveregs2(0), \
  31     (AP).__va_stk = (int *) __builtin_argptr(), \
  32     (AP).__va_arg = (int) (__builtin_argsize() + 3) / 4 )
  33 #endif
  34
  35 #else /* varargs.h support */
  36
  37 #if __GNUC__ > 1 /* GCC 2.0 and beyond */
  38 #define va_start(AP) ((AP) = *(__gnuc_va_list *)__builtin_saveregs())
  39 #else
  40 #define va_start(AP) \
  41   ( (AP).__va_reg = (int *) __builtin_saveregs2(1), \
  42     (AP).__va_stk = (int *) __builtin_argptr(), \
  43     (AP).__va_arg = (int) (__builtin_argsize() - 4 + 3) / 4 )
  44 #endif
  45 #define va_alist __va_1st_arg
  46 #define va_dcl register int va_alist;...
  47
  48 #endif /* _STDARG_H */
  49
  50 /* Avoid trouble between this file and _int_varargs.h under DG/UX.  This file
  51    can be included by <stdio.h> and others and provides definitions of
  52    __va_size and __va_reg_p and  a va_list typedef.  Avoid defining va_list
  53    again with _VA_LIST.  */
  54 #ifdef __INT_VARARGS_H
  55 #undef __va_size
  56 #undef __va_reg_p
  57 #define __gnuc_va_list va_list
  58 #define _VA_LIST
  59 #define _VA_LIST_
  60 #else
  61 /* Similarly, if this gets included first, do nothing in _int_varargs.h.  */
  62 #define __INT_VARARGS_H
  63 #endif
  64
  65 #define __va_reg_p(TYPE) \
  66   (__builtin_classify_type(*(TYPE *)0) < 12 \
  67    ? sizeof(TYPE) <= 8 : sizeof(TYPE) == 4 && __alignof__(TYPE) == 4)
  68
  69 #define __va_size(TYPE) ((sizeof(TYPE) + 3) >> 2)
  70
  71 /* We cast to void * and then to TYPE * because this avoids
  72    a warning about increasing the alignment requirement.  */
  73 #define va_arg(AP,TYPE)                                                    \
  74   ( (AP).__va_arg = (((AP).__va_arg + (1 << (__alignof__(TYPE) >> 3)) - 1) \
  75                      & ~((1 << (__alignof__(TYPE) >> 3)) - 1))             \
  76     + __va_size(TYPE),                                                     \
  77     *((TYPE *) (void *) ((__va_reg_p(TYPE)                                 \
  78                           && (AP).__va_arg < 8 + __va_size(TYPE)           \
  79                           ? (AP).__va_reg : (AP).__va_stk)                 \
  80                          + ((AP).__va_arg - __va_size(TYPE)))))
  81
  82 #define va_end(AP)      ((void)0)
  83
  84 /* Copy __gnuc_va_list into another variable of this type.  */
  85 #define __va_copy(dest, src) (dest) = (src)
  86
  87 #endif /* defined (_STDARG_H) || defined (_VARARGS_H) */