os_kernel_lab/labcodes_answer/lab4_result/libs/stdarg.h

#ifndef __LIBS_STDARG_H__
#define __LIBS_STDARG_H__

/* compiler provides size of save area */
typedef __builtin_va_list va_list;

#define va_start(ap, last)              (__builtin_va_start(ap, last))
#define va_arg(ap, type)                (__builtin_va_arg(ap, type))
#define va_end(ap)                      /*nothing*/

#endif /* !__LIBS_STDARG_H__ */