Editing: syscall_linux_loong64.go

// 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. package syscall import "unsafe" const ( _SYS_setgroups = SYS_SETGROUPS _SYS_clone3 = 435 _SYS_faccessat2 = 439 _SYS_fchmodat2 = 452 ) //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT //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 Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) = SYS_RENAMEAT2 //sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) //sys Setfsgid(gid int) (err error) //sys Setfsuid(uid 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) //sys statx(dirfd int, path string, flags int, mask int, stat *statx_t) (err error) // makedev makes C dev_t from major and minor numbers the glibc way: // 0xMMMM_MMMM 0xmmmm_mmmm -> 0xMMMM_Mmmm_mmmM_MMmm func makedev(major uint32, minor uint32) uint64 { majorH := uint64(major >> 12) majorL := uint64(major & 0xfff) minorH := uint64(minor >> 8) minorL := uint64(minor & 0xff) return (majorH << 44) | (minorH << 20) | (majorL << 8) | minorL } func timespecFromStatxTimestamp(x statxTimestamp) Timespec { return Timespec{ Sec: x.Sec, Nsec: int64(x.Nsec), } } func fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) { var r statx_t // Do it the glibc way, add AT_NO_AUTOMOUNT. if err = statx(dirfd, path, _AT_NO_AUTOMOUNT|flags, _STATX_BASIC_STATS, &r); err != nil { return err } stat.Dev = makedev(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 = makedev(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 Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) { return fstatat(fd, path, stat, flags) } 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) //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) //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) type sigset_t struct { X__val [16]uint64 } //sys pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *sigset_t) (n int, err error) = SYS_PSELECT6 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) } //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 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) } // Getrlimit prefers the prlimit64 system call. func Getrlimit(resource int, rlim *Rlimit) error { return prlimit(0, resource, nil, rlim) } // setrlimit prefers the prlimit64 system call. func setrlimit(resource int, rlim *Rlimit) error { return prlimit(0, resource, rlim, nil) } //go:nosplit func rawSetrlimit(resource int, rlim *Rlimit) Errno { _, _, errno := RawSyscall6(SYS_PRLIMIT64, 0, uintptr(resource), uintptr(unsafe.Pointer(rlim)), 0, 0, 0) return errno } func (r *PtraceRegs) GetEra() uint64 { return r.Era } func (r *PtraceRegs) SetEra(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 (cmsg *Cmsghdr) SetLen(length int) { cmsg.Len = uint64(length) } func InotifyInit() (fd int, err error) { return InotifyInit1(0) } //sys ppoll(fds *pollFd, nfds int, timeout *Timespec, sigmask *sigset_t) (n int, err error) func Pause() error { _, err := ppoll(nil, 0, nil, nil) return err }

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