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- /* stdarg/varargs support for the ARC */
-
- /* Define __gnuc_va_list. */
-
- #ifndef __GNUC_VA_LIST
- #define __GNUC_VA_LIST
- typedef void * __gnuc_va_list;
- #endif /* not __GNUC_VA_LIST */
-
- /* If this is for internal libc use, don't define anything but
- __gnuc_va_list. */
- #if defined (_STDARG_H) || defined (_VARARGS_H)
-
- /* In GCC version 2, we want an ellipsis at the end of the declaration
- of the argument list. GCC version 1 can't parse it. */
-
- #if __GNUC__ > 1
- #define __va_ellipsis ...
- #else
- #define __va_ellipsis
- #endif
-
- /* See arc_setup_incoming_varargs for reasons for the oddity in va_start. */
- #ifdef _STDARG_H
- #define va_start(AP, LASTARG) \
- (AP = (__gnuc_va_list) ((int *) __builtin_next_arg (LASTARG) \
- + (__builtin_args_info (0) < 8 \
- ? (__builtin_args_info (0) & 1) \
- : 0)))
- #else
- #define va_alist __builtin_va_alist
- #define va_dcl int __builtin_va_alist; __va_ellipsis
- #define va_start(AP) \
- (AP = (__gnuc_va_list) ((int *) &__builtin_va_alist \
- + (__builtin_args_info (0) < 8 \
- ? (__builtin_args_info (0) & 1) \
- : 0)))
- #endif
-
- #ifndef va_end
- void va_end (__gnuc_va_list); /* Defined in libgcc.a */
-
- /* Values returned by __builtin_classify_type. */
-
- enum __va_type_classes {
- __no_type_class = -1,
- __void_type_class,
- __integer_type_class,
- __char_type_class,
- __enumeral_type_class,
- __boolean_type_class,
- __pointer_type_class,
- __reference_type_class,
- __offset_type_class,
- __real_type_class,
- __complex_type_class,
- __function_type_class,
- __method_type_class,
- __record_type_class,
- __union_type_class,
- __array_type_class,
- __string_type_class,
- __set_type_class,
- __file_type_class,
- __lang_type_class
- };
-
- #endif
- #define va_end(AP) ((void)0)
-
- /* Avoid errors if compiling GCC v2 with GCC v1. */
- #if __GNUC__ == 1
- #define __extension__
- #endif
-
- /* All aggregates are passed by reference. All scalar types larger than 8
- bytes are passed by reference. */
- /* We cast to void * and then to TYPE * because this avoids
- a warning about increasing the alignment requirement.
- The casts to char * avoid warnings about invalid pointer arithmetic. */
-
- #define __va_rounded_size(TYPE) \
- (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
-
- #ifdef __big_endian__
- #define va_arg(AP,TYPE) \
- __extension__ \
- (*({((__builtin_classify_type (*(TYPE*) 0) >= __record_type_class \
- || __va_rounded_size (TYPE) > 8) \
- ? ((AP) = (char *)(AP) + __va_rounded_size (TYPE *), \
- *(TYPE **) (void *) ((char *)(AP) - __va_rounded_size (TYPE *))) \
- : ((TYPE *) (void *) \
- (AP = (void *) ((__alignof__ (TYPE) > 4 \
- ? ((int) AP + 8 - 1) & -8 \
- : (int) AP) \
- + __va_rounded_size (TYPE))) - 1));}))
- #else
- #define va_arg(AP,TYPE) \
- __extension__ \
- (*({((__builtin_classify_type (*(TYPE*) 0) >= __record_type_class \
- || __va_rounded_size (TYPE) > 8) \
- ? ((AP) = (char *)(AP) + __va_rounded_size (TYPE *), \
- *(TYPE **) (void *) ((char *)(AP) - __va_rounded_size (TYPE *))) \
- : ((AP = (void *) ((__alignof__ (TYPE) > 4 \
- ? ((int) AP + 8 - 1) & -8 \
- : (int) AP) \
- + __va_rounded_size (TYPE))), \
- (TYPE *) (void *) (AP - __va_rounded_size (TYPE))));}))
- #endif
-
- #endif /* defined (_STDARG_H) || defined (_VARARGS_H) */
-