1#define _GNU_SOURCE
 2#include <sys/uio.h>
 3#include <unistd.h>
 4#include "syscall.h"
 5
 6ssize_t preadv2(int fd, const struct iovec *iov, int count, off_t ofs, int flags)
 7{
 8#ifdef SYS_preadv
 9	if (!flags) {
10		if (ofs==-1) return readv(fd, iov, count);
11		return syscall_cp(SYS_preadv, fd, iov, count,
12			(long)(ofs), (long)(ofs>>32));
13	}
14#endif
15	return syscall_cp(SYS_preadv2, fd, iov, count,
16		(long)(ofs), (long)(ofs>>32), flags);
17}