| /* GNU C varargs support for the Intel 80960. */ |
| |
| /* Define __gnuc_va_list. */ |
| |
| #ifndef __GNUC_VA_LIST |
| #define __GNUC_VA_LIST |
| /* The first element is the address of the first argument. |
| The second element is the number of bytes skipped past so far. */ |
| typedef unsigned __gnuc_va_list[2]; |
| #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 |
| |
| /* The stack size of the type t. */ |
| #define __vsiz(T) (((sizeof (T) + 3) / 4) * 4) |
| /* The stack alignment of the type t. */ |
| #define __vali(T) (__alignof__ (T) >= 4 ? __alignof__ (T) : 4) |
| /* The offset of the next stack argument after one of type t at offset i. */ |
| #define __vpad(I, T) ((((I) + __vali (T) - 1) / __vali (T)) \ |
| * __vali (T) + __vsiz (T)) |
| |
| /* Avoid errors if compiling GCC v2 with GCC v1. */ |
| #if __GNUC__ == 1 |
| #define __extension__ |
| #endif |
| |
| #ifdef _STDARG_H |
| /* Call __builtin_next_arg even though we aren't using its value, so that |
| we can verify that firstarg is correct. */ |
| #define va_start(AP, LASTARG) \ |
| __extension__ \ |
| ({ __builtin_next_arg (LASTARG); \ |
| __asm__ ("st g14,%0" : "=m" (*(AP))); \ |
| (AP)[1] = (__builtin_args_info (0) + __builtin_args_info (1)) * 4; }) |
| |
| #else |
| |
| #define va_alist __builtin_va_alist |
| #define va_dcl char *__builtin_va_alist; __va_ellipsis |
| #define va_start(AP) \ |
| __extension__ \ |
| ({ __asm__ ("st g14,%0" : "=m" (*(AP))); \ |
| (AP)[1] = (__builtin_args_info (0) + __builtin_args_info (1)) * 4; }) |
| #endif |
| |
| /* We cast to void * and then to TYPE * because this avoids |
| a warning about increasing the alignment requirement. */ |
| #define va_arg(AP, T) \ |
| ( \ |
| ( \ |
| ((AP)[1] <= 48 && (__vpad ((AP)[1], T) > 48 || __vsiz (T) > 16)) \ |
| ? ((AP)[1] = 48 + __vsiz (T)) \ |
| : ((AP)[1] = __vpad ((AP)[1], T)) \ |
| ), \ |
| \ |
| *((T *) (void *) ((char *) *(AP) + (AP)[1] - __vsiz (T))) \ |
| ) |
| |
| #ifndef va_end |
| void va_end (__gnuc_va_list); /* Defined in libgcc.a */ |
| #endif |
| #define va_end(AP) ((void) 0) |
| |
| /* Copy __gnuc_va_list into another variable of this type. */ |
| #define __va_copy(dest, src) (dest) = (src) |
| |
| #endif /* defined (_STDARG_H) || defined (_VARARGS_H) */ |
| |