diff -r db4911b0c721 -r 445e01aede7e vendor/golang.org/x/sys/unix/syscall_linux_loong64.go
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/golang.org/x/sys/unix/syscall_linux_loong64.go	Tue Aug 23 22:39:43 2022 +0200
@@ -0,0 +1,226 @@
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build loong64 && linux
+// +build loong64,linux
+
+package unix
+
+import "unsafe"
+
+//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT
+//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
+//sys	Fchown(fd int, uid int, gid int) (err error)
+//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
+//sys	Ftruncate(fd int, length int64) (err error)
+//sysnb	Getegid() (egid int)
+//sysnb	Geteuid() (euid int)
+//sysnb	Getgid() (gid int)
+//sysnb	Getuid() (uid int)
+//sys	Listen(s int, n int) (err error)
+//sys	pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
+//sys	pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
+//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
+
+func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {
+	var ts *Timespec
+	if timeout != nil {
+		ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
+	}
+	return Pselect(nfd, r, w, e, ts, nil)
+}
+
+//sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
+//sys	setfsgid(gid int) (prev int, err error)
+//sys	setfsuid(uid int) (prev int, err error)
+//sysnb	Setregid(rgid int, egid int) (err error)
+//sysnb	Setresgid(rgid int, egid int, sgid int) (err error)
+//sysnb	Setresuid(ruid int, euid int, suid int) (err error)
+//sysnb	Setreuid(ruid int, euid int) (err error)
+//sys	Shutdown(fd int, how int) (err error)
+//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
+
+func timespecFromStatxTimestamp(x StatxTimestamp) Timespec {
+	return Timespec{
+		Sec:  x.Sec,
+		Nsec: int64(x.Nsec),
+	}
+}
+
+func Fstatat(fd int, path string, stat *Stat_t, flags int) error {
+	var r Statx_t
+	// Do it the glibc way, add AT_NO_AUTOMOUNT.
+	if err := Statx(fd, path, AT_NO_AUTOMOUNT|flags, STATX_BASIC_STATS, &r); err != nil {
+		return err
+	}
+
+	stat.Dev = Mkdev(r.Dev_major, r.Dev_minor)
+	stat.Ino = r.Ino
+	stat.Mode = uint32(r.Mode)
+	stat.Nlink = r.Nlink
+	stat.Uid = r.Uid
+	stat.Gid = r.Gid
+	stat.Rdev = Mkdev(r.Rdev_major, r.Rdev_minor)
+	// hope we don't get to process files so large to overflow these size
+	// fields...
+	stat.Size = int64(r.Size)
+	stat.Blksize = int32(r.Blksize)
+	stat.Blocks = int64(r.Blocks)
+	stat.Atim = timespecFromStatxTimestamp(r.Atime)
+	stat.Mtim = timespecFromStatxTimestamp(r.Mtime)
+	stat.Ctim = timespecFromStatxTimestamp(r.Ctime)
+
+	return nil
+}
+
+func Fstat(fd int, stat *Stat_t) (err error) {
+	return Fstatat(fd, "", stat, AT_EMPTY_PATH)
+}
+
+func Stat(path string, stat *Stat_t) (err error) {
+	return Fstatat(AT_FDCWD, path, stat, 0)
+}
+
+func Lchown(path string, uid int, gid int) (err error) {
+	return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW)
+}
+
+func Lstat(path string, stat *Stat_t) (err error) {
+	return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
+}
+
+//sys	Statfs(path string, buf *Statfs_t) (err error)
+//sys	SyncFileRange(fd int, off int64, n int64, flags int) (err error)
+//sys	Truncate(path string, length int64) (err error)
+
+func Ustat(dev int, ubuf *Ustat_t) (err error) {
+	return ENOSYS
+}
+
+//sys	accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
+//sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
+//sysnb	setgroups(n int, list *_Gid_t) (err error)
+//sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
+//sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
+//sysnb	socket(domain int, typ int, proto int) (fd int, err error)
+//sysnb	socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
+//sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
+//sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
+//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
+//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
+//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
+
+//sysnb	Gettimeofday(tv *Timeval) (err error)
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: sec, Nsec: nsec}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: sec, Usec: usec}
+}
+
+func Getrlimit(resource int, rlim *Rlimit) (err error) {
+	err = Prlimit(0, resource, nil, rlim)
+	return
+}
+
+func Setrlimit(resource int, rlim *Rlimit) (err error) {
+	err = Prlimit(0, resource, rlim, nil)
+	return
+}
+
+func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) {
+	if tv == nil {
+		return utimensat(dirfd, path, nil, 0)
+	}
+
+	ts := []Timespec{
+		NsecToTimespec(TimevalToNsec(tv[0])),
+		NsecToTimespec(TimevalToNsec(tv[1])),
+	}
+	return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
+}
+
+func Time(t *Time_t) (Time_t, error) {
+	var tv Timeval
+	err := Gettimeofday(&tv)
+	if err != nil {
+		return 0, err
+	}
+	if t != nil {
+		*t = Time_t(tv.Sec)
+	}
+	return Time_t(tv.Sec), nil
+}
+
+func Utime(path string, buf *Utimbuf) error {
+	tv := []Timeval{
+		{Sec: buf.Actime},
+		{Sec: buf.Modtime},
+	}
+	return Utimes(path, tv)
+}
+
+func utimes(path string, tv *[2]Timeval) (err error) {
+	if tv == nil {
+		return utimensat(AT_FDCWD, path, nil, 0)
+	}
+
+	ts := []Timespec{
+		NsecToTimespec(TimevalToNsec(tv[0])),
+		NsecToTimespec(TimevalToNsec(tv[1])),
+	}
+	return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
+}
+
+func (r *PtraceRegs) PC() uint64 { return r.Era }
+
+func (r *PtraceRegs) SetPC(era uint64) { r.Era = era }
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint64(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint64(length)
+}
+
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = uint64(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint64(length)
+}
+
+func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {
+	rsa.Service_name_len = uint64(length)
+}
+
+func Pause() error {
+	_, err := ppoll(nil, 0, nil, nil)
+	return err
+}
+
+func Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) {
+	return Renameat2(olddirfd, oldpath, newdirfd, newpath, 0)
+}
+
+//sys	kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
+
+func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {
+	cmdlineLen := len(cmdline)
+	if cmdlineLen > 0 {
+		// Account for the additional NULL byte added by
+		// BytePtrFromString in kexecFileLoad. The kexec_file_load
+		// syscall expects a NULL-terminated string.
+		cmdlineLen++
+	}
+	return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
+}