You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: zsyscall_openbsd_riscv64.go
    path of file: ./repos/sliver/vendor/golang.org/x/sys/unix
    
    the code of the file until where you have to start completion: // go run mksyscall.go -openbsd -libc -tags openbsd,riscv64 syscall_bsd.go 
    
func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
	r0, _, e1 := syscall_syscall(libc_lseek_trampoline_addr, uintptr(fd), uintptr(offset), uintptr(whence))
	newoffset = int64(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}