From 404aeae4545d2426c089a5f8d5e82dae56f5212b Mon Sep 17 00:00:00 2001 From: Rutger Broekhoff Date: Fri, 29 Dec 2023 21:31:53 +0100 Subject: Make Nix builds work --- vendor/golang.org/x/sys/unix/syscall_darwin.go | 646 +++++++++++++++++++++++++ 1 file changed, 646 insertions(+) create mode 100644 vendor/golang.org/x/sys/unix/syscall_darwin.go (limited to 'vendor/golang.org/x/sys/unix/syscall_darwin.go') diff --git a/vendor/golang.org/x/sys/unix/syscall_darwin.go b/vendor/golang.org/x/sys/unix/syscall_darwin.go new file mode 100644 index 0000000..59542a8 --- /dev/null +++ b/vendor/golang.org/x/sys/unix/syscall_darwin.go @@ -0,0 +1,646 @@ +// Copyright 2009,2010 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. + +// Darwin system calls. +// This file is compiled as ordinary Go code, +// but it is also input to mksyscall, +// which parses the //sys lines and generates system call stubs. +// Note that sometimes we use a lowercase //sys name and wrap +// it in our own nicer implementation, either here or in +// syscall_bsd.go or syscall_unix.go. + +package unix + +import ( + "fmt" + "syscall" + "unsafe" +) + +//sys closedir(dir uintptr) (err error) +//sys readdir_r(dir uintptr, entry *Dirent, result **Dirent) (res Errno) + +func fdopendir(fd int) (dir uintptr, err error) { + r0, _, e1 := syscall_syscallPtr(libc_fdopendir_trampoline_addr, uintptr(fd), 0, 0) + dir = uintptr(r0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +var libc_fdopendir_trampoline_addr uintptr + +//go:cgo_import_dynamic libc_fdopendir fdopendir "/usr/lib/libSystem.B.dylib" + +func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { + // Simulate Getdirentries using fdopendir/readdir_r/closedir. + // We store the number of entries to skip in the seek + // offset of fd. See issue #31368. + // It's not the full required semantics, but should handle the case + // of calling Getdirentries or ReadDirent repeatedly. + // It won't handle assigning the results of lseek to *basep, or handle + // the directory being edited underfoot. + skip, err := Seek(fd, 0, 1 /* SEEK_CUR */) + if err != nil { + return 0, err + } + + // We need to duplicate the incoming file descriptor + // because the caller expects to retain control of it, but + // fdopendir expects to take control of its argument. + // Just Dup'ing the file descriptor is not enough, as the + // result shares underlying state. Use Openat to make a really + // new file descriptor referring to the same directory. + fd2, err := Openat(fd, ".", O_RDONLY, 0) + if err != nil { + return 0, err + } + d, err := fdopendir(fd2) + if err != nil { + Close(fd2) + return 0, err + } + defer closedir(d) + + var cnt int64 + for { + var entry Dirent + var entryp *Dirent + e := readdir_r(d, &entry, &entryp) + if e != 0 { + return n, errnoErr(e) + } + if entryp == nil { + break + } + if skip > 0 { + skip-- + cnt++ + continue + } + + reclen := int(entry.Reclen) + if reclen > len(buf) { + // Not enough room. Return for now. + // The counter will let us know where we should start up again. + // Note: this strategy for suspending in the middle and + // restarting is O(n^2) in the length of the directory. Oh well. + break + } + + // Copy entry into return buffer. + s := unsafe.Slice((*byte)(unsafe.Pointer(&entry)), reclen) + copy(buf, s) + + buf = buf[reclen:] + n += reclen + cnt++ + } + // Set the seek offset of the input fd to record + // how many files we've already returned. + _, err = Seek(fd, cnt, 0 /* SEEK_SET */) + if err != nil { + return n, err + } + + return n, nil +} + +// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. +type SockaddrDatalink struct { + Len uint8 + Family uint8 + Index uint16 + Type uint8 + Nlen uint8 + Alen uint8 + Slen uint8 + Data [12]int8 + raw RawSockaddrDatalink +} + +// SockaddrCtl implements the Sockaddr interface for AF_SYSTEM type sockets. +type SockaddrCtl struct { + ID uint32 + Unit uint32 + raw RawSockaddrCtl +} + +func (sa *SockaddrCtl) sockaddr() (unsafe.Pointer, _Socklen, error) { + sa.raw.Sc_len = SizeofSockaddrCtl + sa.raw.Sc_family = AF_SYSTEM + sa.raw.Ss_sysaddr = AF_SYS_CONTROL + sa.raw.Sc_id = sa.ID + sa.raw.Sc_unit = sa.Unit + return unsafe.Pointer(&sa.raw), SizeofSockaddrCtl, nil +} + +// SockaddrVM implements the Sockaddr interface for AF_VSOCK type sockets. +// SockaddrVM provides access to Darwin VM sockets: a mechanism that enables +// bidirectional communication between a hypervisor and its guest virtual +// machines. +type SockaddrVM struct { + // CID and Port specify a context ID and port address for a VM socket. + // Guests have a unique CID, and hosts may have a well-known CID of: + // - VMADDR_CID_HYPERVISOR: refers to the hypervisor process. + // - VMADDR_CID_LOCAL: refers to local communication (loopback). + // - VMADDR_CID_HOST: refers to other processes on the host. + CID uint32 + Port uint32 + raw RawSockaddrVM +} + +func (sa *SockaddrVM) sockaddr() (unsafe.Pointer, _Socklen, error) { + sa.raw.Len = SizeofSockaddrVM + sa.raw.Family = AF_VSOCK + sa.raw.Port = sa.Port + sa.raw.Cid = sa.CID + + return unsafe.Pointer(&sa.raw), SizeofSockaddrVM, nil +} + +func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { + switch rsa.Addr.Family { + case AF_SYSTEM: + pp := (*RawSockaddrCtl)(unsafe.Pointer(rsa)) + if pp.Ss_sysaddr == AF_SYS_CONTROL { + sa := new(SockaddrCtl) + sa.ID = pp.Sc_id + sa.Unit = pp.Sc_unit + return sa, nil + } + case AF_VSOCK: + pp := (*RawSockaddrVM)(unsafe.Pointer(rsa)) + sa := &SockaddrVM{ + CID: pp.Cid, + Port: pp.Port, + } + return sa, nil + } + return nil, EAFNOSUPPORT +} + +// Some external packages rely on SYS___SYSCTL being defined to implement their +// own sysctl wrappers. Provide it here, even though direct syscalls are no +// longer supported on darwin. +const SYS___SYSCTL = SYS_SYSCTL + +// Translate "kern.hostname" to []_C_int{0,1,2,3}. +func nametomib(name string) (mib []_C_int, err error) { + const siz = unsafe.Sizeof(mib[0]) + + // NOTE(rsc): It seems strange to set the buffer to have + // size CTL_MAXNAME+2 but use only CTL_MAXNAME + // as the size. I don't know why the +2 is here, but the + // kernel uses +2 for its own implementation of this function. + // I am scared that if we don't include the +2 here, the kernel + // will silently write 2 words farther than we specify + // and we'll get memory corruption. + var buf [CTL_MAXNAME + 2]_C_int + n := uintptr(CTL_MAXNAME) * siz + + p := (*byte)(unsafe.Pointer(&buf[0])) + bytes, err := ByteSliceFromString(name) + if err != nil { + return nil, err + } + + // Magic sysctl: "setting" 0.3 to a string name + // lets you read back the array of integers form. + if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil { + return nil, err + } + return buf[0 : n/siz], nil +} + +func direntIno(buf []byte) (uint64, bool) { + return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino)) +} + +func direntReclen(buf []byte) (uint64, bool) { + return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) +} + +func direntNamlen(buf []byte) (uint64, bool) { + return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) +} + +func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) } +func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) } +func PtraceDenyAttach() (err error) { return ptrace(PT_DENY_ATTACH, 0, 0, 0) } + +//sysnb pipe(p *[2]int32) (err error) + +func Pipe(p []int) (err error) { + if len(p) != 2 { + return EINVAL + } + var x [2]int32 + err = pipe(&x) + if err == nil { + p[0] = int(x[0]) + p[1] = int(x[1]) + } + return +} + +func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { + var _p0 unsafe.Pointer + var bufsize uintptr + if len(buf) > 0 { + _p0 = unsafe.Pointer(&buf[0]) + bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) + } + return getfsstat(_p0, bufsize, flags) +} + +func xattrPointer(dest []byte) *byte { + // It's only when dest is set to NULL that the OS X implementations of + // getxattr() and listxattr() return the current sizes of the named attributes. + // An empty byte array is not sufficient. To maintain the same behaviour as the + // linux implementation, we wrap around the system calls and pass in NULL when + // dest is empty. + var destp *byte + if len(dest) > 0 { + destp = &dest[0] + } + return destp +} + +//sys getxattr(path string, attr string, dest *byte, size int, position uint32, options int) (sz int, err error) + +func Getxattr(path string, attr string, dest []byte) (sz int, err error) { + return getxattr(path, attr, xattrPointer(dest), len(dest), 0, 0) +} + +func Lgetxattr(link string, attr string, dest []byte) (sz int, err error) { + return getxattr(link, attr, xattrPointer(dest), len(dest), 0, XATTR_NOFOLLOW) +} + +//sys fgetxattr(fd int, attr string, dest *byte, size int, position uint32, options int) (sz int, err error) + +func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) { + return fgetxattr(fd, attr, xattrPointer(dest), len(dest), 0, 0) +} + +//sys setxattr(path string, attr string, data *byte, size int, position uint32, options int) (err error) + +func Setxattr(path string, attr string, data []byte, flags int) (err error) { + // The parameters for the OS X implementation vary slightly compared to the + // linux system call, specifically the position parameter: + // + // linux: + // int setxattr( + // const char *path, + // const char *name, + // const void *value, + // size_t size, + // int flags + // ); + // + // darwin: + // int setxattr( + // const char *path, + // const char *name, + // void *value, + // size_t size, + // u_int32_t position, + // int options + // ); + // + // position specifies the offset within the extended attribute. In the + // current implementation, only the resource fork extended attribute makes + // use of this argument. For all others, position is reserved. We simply + // default to setting it to zero. + return setxattr(path, attr, xattrPointer(data), len(data), 0, flags) +} + +func Lsetxattr(link string, attr string, data []byte, flags int) (err error) { + return setxattr(link, attr, xattrPointer(data), len(data), 0, flags|XATTR_NOFOLLOW) +} + +//sys fsetxattr(fd int, attr string, data *byte, size int, position uint32, options int) (err error) + +func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) { + return fsetxattr(fd, attr, xattrPointer(data), len(data), 0, 0) +} + +//sys removexattr(path string, attr string, options int) (err error) + +func Removexattr(path string, attr string) (err error) { + // We wrap around and explicitly zero out the options provided to the OS X + // implementation of removexattr, we do so for interoperability with the + // linux variant. + return removexattr(path, attr, 0) +} + +func Lremovexattr(link string, attr string) (err error) { + return removexattr(link, attr, XATTR_NOFOLLOW) +} + +//sys fremovexattr(fd int, attr string, options int) (err error) + +func Fremovexattr(fd int, attr string) (err error) { + return fremovexattr(fd, attr, 0) +} + +//sys listxattr(path string, dest *byte, size int, options int) (sz int, err error) + +func Listxattr(path string, dest []byte) (sz int, err error) { + return listxattr(path, xattrPointer(dest), len(dest), 0) +} + +func Llistxattr(link string, dest []byte) (sz int, err error) { + return listxattr(link, xattrPointer(dest), len(dest), XATTR_NOFOLLOW) +} + +//sys flistxattr(fd int, dest *byte, size int, options int) (sz int, err error) + +func Flistxattr(fd int, dest []byte) (sz int, err error) { + return flistxattr(fd, xattrPointer(dest), len(dest), 0) +} + +//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) + +/* + * Wrapped + */ + +//sys fcntl(fd int, cmd int, arg int) (val int, err error) + +//sys kill(pid int, signum int, posix int) (err error) + +func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(signum), 1) } + +//sys ioctl(fd int, req uint, arg uintptr) (err error) +//sys ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL + +func IoctlCtlInfo(fd int, ctlInfo *CtlInfo) error { + return ioctlPtr(fd, CTLIOCGINFO, unsafe.Pointer(ctlInfo)) +} + +// IfreqMTU is struct ifreq used to get or set a network device's MTU. +type IfreqMTU struct { + Name [IFNAMSIZ]byte + MTU int32 +} + +// IoctlGetIfreqMTU performs the SIOCGIFMTU ioctl operation on fd to get the MTU +// of the network device specified by ifname. +func IoctlGetIfreqMTU(fd int, ifname string) (*IfreqMTU, error) { + var ifreq IfreqMTU + copy(ifreq.Name[:], ifname) + err := ioctlPtr(fd, SIOCGIFMTU, unsafe.Pointer(&ifreq)) + return &ifreq, err +} + +// IoctlSetIfreqMTU performs the SIOCSIFMTU ioctl operation on fd to set the MTU +// of the network device specified by ifreq.Name. +func IoctlSetIfreqMTU(fd int, ifreq *IfreqMTU) error { + return ioctlPtr(fd, SIOCSIFMTU, unsafe.Pointer(ifreq)) +} + +//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS_SYSCTL + +func Uname(uname *Utsname) error { + mib := []_C_int{CTL_KERN, KERN_OSTYPE} + n := unsafe.Sizeof(uname.Sysname) + if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { + return err + } + + mib = []_C_int{CTL_KERN, KERN_HOSTNAME} + n = unsafe.Sizeof(uname.Nodename) + if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { + return err + } + + mib = []_C_int{CTL_KERN, KERN_OSRELEASE} + n = unsafe.Sizeof(uname.Release) + if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { + return err + } + + mib = []_C_int{CTL_KERN, KERN_VERSION} + n = unsafe.Sizeof(uname.Version) + if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { + return err + } + + // The version might have newlines or tabs in it, convert them to + // spaces. + for i, b := range uname.Version { + if b == '\n' || b == '\t' { + if i == len(uname.Version)-1 { + uname.Version[i] = 0 + } else { + uname.Version[i] = ' ' + } + } + } + + mib = []_C_int{CTL_HW, HW_MACHINE} + n = unsafe.Sizeof(uname.Machine) + if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { + return err + } + + return nil +} + +func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { + if raceenabled { + raceReleaseMerge(unsafe.Pointer(&ioSync)) + } + var length = int64(count) + err = sendfile(infd, outfd, *offset, &length, nil, 0) + written = int(length) + return +} + +func GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) { + var value IPMreqn + vallen := _Socklen(SizeofIPMreqn) + errno := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, errno +} + +func SetsockoptIPMreqn(fd, level, opt int, mreq *IPMreqn) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq)) +} + +// GetsockoptXucred is a getsockopt wrapper that returns an Xucred struct. +// The usual level and opt are SOL_LOCAL and LOCAL_PEERCRED, respectively. +func GetsockoptXucred(fd, level, opt int) (*Xucred, error) { + x := new(Xucred) + vallen := _Socklen(SizeofXucred) + err := getsockopt(fd, level, opt, unsafe.Pointer(x), &vallen) + return x, err +} + +func GetsockoptTCPConnectionInfo(fd, level, opt int) (*TCPConnectionInfo, error) { + var value TCPConnectionInfo + vallen := _Socklen(SizeofTCPConnectionInfo) + err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) + return &value, err +} + +func SysctlKinfoProc(name string, args ...int) (*KinfoProc, error) { + mib, err := sysctlmib(name, args...) + if err != nil { + return nil, err + } + + var kinfo KinfoProc + n := uintptr(SizeofKinfoProc) + if err := sysctl(mib, (*byte)(unsafe.Pointer(&kinfo)), &n, nil, 0); err != nil { + return nil, err + } + if n != SizeofKinfoProc { + return nil, EIO + } + return &kinfo, nil +} + +func SysctlKinfoProcSlice(name string, args ...int) ([]KinfoProc, error) { + mib, err := sysctlmib(name, args...) + if err != nil { + return nil, err + } + + for { + // Find size. + n := uintptr(0) + if err := sysctl(mib, nil, &n, nil, 0); err != nil { + return nil, err + } + if n == 0 { + return nil, nil + } + if n%SizeofKinfoProc != 0 { + return nil, fmt.Errorf("sysctl() returned a size of %d, which is not a multiple of %d", n, SizeofKinfoProc) + } + + // Read into buffer of that size. + buf := make([]KinfoProc, n/SizeofKinfoProc) + if err := sysctl(mib, (*byte)(unsafe.Pointer(&buf[0])), &n, nil, 0); err != nil { + if err == ENOMEM { + // Process table grew. Try again. + continue + } + return nil, err + } + if n%SizeofKinfoProc != 0 { + return nil, fmt.Errorf("sysctl() returned a size of %d, which is not a multiple of %d", n, SizeofKinfoProc) + } + + // The actual call may return less than the original reported required + // size so ensure we deal with that. + return buf[:n/SizeofKinfoProc], nil + } +} + +//sys sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) + +//sys shmat(id int, addr uintptr, flag int) (ret uintptr, err error) +//sys shmctl(id int, cmd int, buf *SysvShmDesc) (result int, err error) +//sys shmdt(addr uintptr) (err error) +//sys shmget(key int, size int, flag int) (id int, err error) + +/* + * Exposed directly + */ +//sys Access(path string, mode uint32) (err error) +//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) +//sys Chdir(path string) (err error) +//sys Chflags(path string, flags int) (err error) +//sys Chmod(path string, mode uint32) (err error) +//sys Chown(path string, uid int, gid int) (err error) +//sys Chroot(path string) (err error) +//sys ClockGettime(clockid int32, time *Timespec) (err error) +//sys Close(fd int) (err error) +//sys Clonefile(src string, dst string, flags int) (err error) +//sys Clonefileat(srcDirfd int, src string, dstDirfd int, dst string, flags int) (err error) +//sys Dup(fd int) (nfd int, err error) +//sys Dup2(from int, to int) (err error) +//sys Exchangedata(path1 string, path2 string, options int) (err error) +//sys Exit(code int) +//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) +//sys Fchdir(fd int) (err error) +//sys Fchflags(fd int, flags int) (err error) +//sys Fchmod(fd int, mode uint32) (err error) +//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) +//sys Fchown(fd int, uid int, gid int) (err error) +//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) +//sys Fclonefileat(srcDirfd int, dstDirfd int, dst string, flags int) (err error) +//sys Flock(fd int, how int) (err error) +//sys Fpathconf(fd int, name int) (val int, err error) +//sys Fsync(fd int) (err error) +//sys Ftruncate(fd int, length int64) (err error) +//sys Getcwd(buf []byte) (n int, err error) +//sys Getdtablesize() (size int) +//sysnb Getegid() (egid int) +//sysnb Geteuid() (uid int) +//sysnb Getgid() (gid int) +//sysnb Getpgid(pid int) (pgid int, err error) +//sysnb Getpgrp() (pgrp int) +//sysnb Getpid() (pid int) +//sysnb Getppid() (ppid int) +//sys Getpriority(which int, who int) (prio int, err error) +//sysnb Getrlimit(which int, lim *Rlimit) (err error) +//sysnb Getrusage(who int, rusage *Rusage) (err error) +//sysnb Getsid(pid int) (sid int, err error) +//sysnb Gettimeofday(tp *Timeval) (err error) +//sysnb Getuid() (uid int) +//sysnb Issetugid() (tainted bool) +//sys Kqueue() (fd int, err error) +//sys Lchown(path string, uid int, gid int) (err error) +//sys Link(path string, link string) (err error) +//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) +//sys Listen(s int, backlog int) (err error) +//sys Mkdir(path string, mode uint32) (err error) +//sys Mkdirat(dirfd int, path string, mode uint32) (err error) +//sys Mkfifo(path string, mode uint32) (err error) +//sys Mknod(path string, mode uint32, dev int) (err error) +//sys Mount(fsType string, dir string, flags int, data unsafe.Pointer) (err error) +//sys Open(path string, mode int, perm uint32) (fd int, err error) +//sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error) +//sys Pathconf(path string, name int) (val int, err error) +//sys pread(fd int, p []byte, offset int64) (n int, err error) +//sys pwrite(fd int, p []byte, offset int64) (n int, err error) +//sys read(fd int, p []byte) (n int, err error) +//sys Readlink(path string, buf []byte) (n int, err error) +//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) +//sys Rename(from string, to string) (err error) +//sys Renameat(fromfd int, from string, tofd int, to string) (err error) +//sys Revoke(path string) (err error) +//sys Rmdir(path string) (err error) +//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK +//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) +//sys Setattrlist(path string, attrlist *Attrlist, attrBuf []byte, options int) (err error) +//sys Setegid(egid int) (err error) +//sysnb Seteuid(euid int) (err error) +//sysnb Setgid(gid int) (err error) +//sys Setlogin(name string) (err error) +//sysnb Setpgid(pid int, pgid int) (err error) +//sys Setpriority(which int, who int, prio int) (err error) +//sys Setprivexec(flag int) (err error) +//sysnb Setregid(rgid int, egid int) (err error) +//sysnb Setreuid(ruid int, euid int) (err error) +//sysnb Setsid() (pid int, err error) +//sysnb Settimeofday(tp *Timeval) (err error) +//sysnb Setuid(uid int) (err error) +//sys Symlink(path string, link string) (err error) +//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) +//sys Sync() (err error) +//sys Truncate(path string, length int64) (err error) +//sys Umask(newmask int) (oldmask int) +//sys Undelete(path string) (err error) +//sys Unlink(path string) (err error) +//sys Unlinkat(dirfd int, path string, flags int) (err error) +//sys Unmount(path string, flags int) (err error) +//sys write(fd int, p []byte) (n int, err error) +//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) +//sys munmap(addr uintptr, length uintptr) (err error) -- cgit v1.2.3