1 /* CYGNUS LOCAL entire file/law */ 2 /* Define __gnuc_va_list. */ 3 4 #ifndef __GNUC_VA_LIST 5 #define __GNUC_VA_LIST 6 typedef void *__gnuc_va_list; 7 #endif /* not __GNUC_VA_LIST */ 8 9 /* If this is for internal libc use, don't define anything but 10 __gnuc_va_list. */ 11 #if defined (_STDARG_H) || defined (_VARARGS_H) 12 #define __gnuc_va_start(AP) (AP = (__gnuc_va_list)__builtin_saveregs()) 13 #define __va_ellipsis ... 14 15 #ifdef _STDARG_H 16 #define va_start(AP, LASTARG) \ 17 (AP = ((__gnuc_va_list) __builtin_next_arg (LASTARG))) 18 #else 19 #define va_alist __builtin_va_alist 20 #define va_dcl int __builtin_va_alist; __va_ellipsis 21 #define va_start(AP) AP=(char *) &__builtin_va_alist 22 #endif 23 24 /* Now stuff common to both varargs & stdarg implementations. */ 25 #define __va_rounded_size(TYPE) \ 26 (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int)) 27 #undef va_end 28 void va_end (__gnuc_va_list); 29 #define va_end(AP) ((void)0) 30 #define va_arg(AP, TYPE) \ 31 (sizeof (TYPE) > 8 \ 32 ? (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (char *)),\ 33 **((TYPE **) (void *) ((char *) (AP) - __va_rounded_size (char *))))\ 34 : (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)), \ 35 *((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE))))) 36 #endif 37 /* END CYGNUS LOCAL */ 38