65 lines
1.9 KiB
C
Executable File
65 lines
1.9 KiB
C
Executable File
/* CYGNUS LOCAL entire file/d30v */
|
|
/* GNU C stdarg/varargs support for the D30V */
|
|
|
|
/* Define __gnuc_va_list. */
|
|
#ifndef __GNUC_VA_LIST
|
|
#define __GNUC_VA_LIST
|
|
typedef struct __va_list_tag {
|
|
int *__va_arg_ptr; /* start of the register save area */
|
|
int __va_arg_num; /* argument number */
|
|
} __va_list[1], __gnuc_va_list[1];
|
|
|
|
#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)
|
|
|
|
/* Common code for va_start for both varargs and stdarg. This depends
|
|
on the format of the CUMULATIVE_ARGS type. On the d30v, we use just
|
|
a single word that is the register number. */
|
|
|
|
#define __va_start_common(AP) \
|
|
__extension__ ({ \
|
|
(AP)->__va_arg_ptr = (int *) __builtin_saveregs (); \
|
|
(AP)->__va_arg_num = __builtin_args_info (0) - 2 /* first arg # */; \
|
|
(void)0; \
|
|
})
|
|
|
|
#ifdef _STDARG_H /* stdarg.h support */
|
|
|
|
/* Calling __builtin_next_arg gives the proper error message if LASTARG is
|
|
not indeed the last argument. */
|
|
#define va_start(AP,LASTARG) \
|
|
(__builtin_next_arg (LASTARG), __va_start_common (AP))
|
|
|
|
#else /* varargs.h support */
|
|
|
|
#define va_start(AP) __va_start_common (AP)
|
|
#define va_alist __builtin_va_alist
|
|
#define va_dcl register int va_alist; ...
|
|
|
|
#endif /* _STDARG_H */
|
|
|
|
/* Nothing needs to be done to end varargs/stdarg processing */
|
|
#define va_end(AP) ((void)0)
|
|
|
|
#define va_arg(AP,TYPE) \
|
|
__extension__ (*({ \
|
|
register TYPE *__ptr; \
|
|
\
|
|
if (sizeof (TYPE) > 4 && ((AP)->__va_arg_num & 1) != 0) \
|
|
(AP)->__va_arg_num++; \
|
|
\
|
|
__ptr = (TYPE *)(((char *)(void *) \
|
|
((AP)->__va_arg_ptr + (AP)->__va_arg_num))); \
|
|
\
|
|
if (sizeof (TYPE) < 4) \
|
|
__ptr = (void*)__ptr + 4 - sizeof (TYPE); \
|
|
(AP)->__va_arg_num += (sizeof (TYPE) + 3) / 4; \
|
|
__ptr; \
|
|
}))
|
|
|
|
#endif /* defined (_STDARG_H) || defined (_VARARGS_H) */
|
|
/* END CYGNUS LOCAL */
|