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
8typedef 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) */
88