36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
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/* Define __gnuc_va_list. */
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#ifndef __GNUC_VA_LIST
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#define __GNUC_VA_LIST
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typedef void *__gnuc_va_list;
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#endif /* not __GNUC_VA_LIST */
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/* If this is for internal libc use, don't define anything but
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__gnuc_va_list. */
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#if defined (_STDARG_H) || defined (_VARARGS_H)
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#define __gnuc_va_start(AP) (AP = (__gnuc_va_list)__builtin_saveregs())
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#define __va_ellipsis ...
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#ifdef _STDARG_H
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#define va_start(AP, LASTARG) \
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(__builtin_next_arg (LASTARG), __gnuc_va_start (AP))
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#else
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#define va_alist __builtin_va_alist
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#define va_dcl int __builtin_va_alist; __va_ellipsis
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#define va_start(AP) AP=(char *) &__builtin_va_alist
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#endif
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/* Now stuff common to both varargs & stdarg implementations. */
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#define __va_rounded_size(TYPE) \
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(((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
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#undef va_end
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void va_end (__gnuc_va_list);
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#define va_end(AP) ((void)0)
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#define va_arg(AP, TYPE) \
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(sizeof (TYPE) > 8 \
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? (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (char *)),\
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**((TYPE **) (void *) ((char *) (AP) - __va_rounded_size (char *))))\
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: (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)), \
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*((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE)))))
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#endif
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