#define __LIBRARY__ #include #include int open(const char * filename, int flag, ...) { register int res; va_list arg; va_start(arg,flag); __asm__("int $0x80" :"=a" (res) :"0" (__NR_open),"b" (filename),"c" (flag), "d" (va_arg(arg,int))); if (res>=0) return res; errno = -res; return -1; }