| // 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) |
| //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 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) |
| } |