-__LXSYSCALL3(int, lseek, int, fd, int, offset, int, options);
-
-__LXSYSCALL3(int, read, int, fd, void*, buf, unsigned int, count);
-
-__LXSYSCALL3(int, write, int, fd, void*, buf, unsigned int, count);
+__LXSYSCALL3(int, realpathat, int, fd, char*, buf, size_t, size)