Gibheer
fa05045d31
This is the import from the separate monfront repository. The history could not be imported, but this should suffice.
542 lines
14 KiB
Go
542 lines
14 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// DragonFly BSD system calls.
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// This file is compiled as ordinary Go code,
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// but it is also input to mksyscall,
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// which parses the //sys lines and generates system call stubs.
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// Note that sometimes we use a lowercase //sys name and wrap
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// it in our own nicer implementation, either here or in
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// syscall_bsd.go or syscall_unix.go.
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package unix
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import (
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"sync"
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"unsafe"
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)
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// See version list in https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/sys/param.h
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var (
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osreldateOnce sync.Once
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osreldate uint32
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)
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// First __DragonFly_version after September 2019 ABI changes
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// http://lists.dragonflybsd.org/pipermail/users/2019-September/358280.html
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const _dragonflyABIChangeVersion = 500705
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func supportsABI(ver uint32) bool {
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osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") })
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return osreldate >= ver
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}
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// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
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type SockaddrDatalink struct {
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Len uint8
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Family uint8
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Index uint16
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Type uint8
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Nlen uint8
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Alen uint8
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Slen uint8
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Data [12]int8
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Rcf uint16
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Route [16]uint16
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raw RawSockaddrDatalink
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}
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func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
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return nil, EAFNOSUPPORT
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}
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// Translate "kern.hostname" to []_C_int{0,1,2,3}.
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func nametomib(name string) (mib []_C_int, err error) {
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const siz = unsafe.Sizeof(mib[0])
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// NOTE(rsc): It seems strange to set the buffer to have
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// size CTL_MAXNAME+2 but use only CTL_MAXNAME
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// as the size. I don't know why the +2 is here, but the
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// kernel uses +2 for its own implementation of this function.
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// I am scared that if we don't include the +2 here, the kernel
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// will silently write 2 words farther than we specify
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// and we'll get memory corruption.
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var buf [CTL_MAXNAME + 2]_C_int
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n := uintptr(CTL_MAXNAME) * siz
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p := (*byte)(unsafe.Pointer(&buf[0]))
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bytes, err := ByteSliceFromString(name)
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if err != nil {
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return nil, err
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}
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// Magic sysctl: "setting" 0.3 to a string name
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// lets you read back the array of integers form.
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if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil {
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return nil, err
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}
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return buf[0 : n/siz], nil
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}
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func direntIno(buf []byte) (uint64, bool) {
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return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno))
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}
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func direntReclen(buf []byte) (uint64, bool) {
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namlen, ok := direntNamlen(buf)
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if !ok {
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return 0, false
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}
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return (16 + namlen + 1 + 7) &^ 7, true
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}
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func direntNamlen(buf []byte) (uint64, bool) {
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return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen))
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}
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//sysnb pipe() (r int, w int, err error)
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func Pipe(p []int) (err error) {
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if len(p) != 2 {
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return EINVAL
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}
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p[0], p[1], err = pipe()
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return
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}
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//sysnb pipe2(p *[2]_C_int, flags int) (r int, w int, err error)
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func Pipe2(p []int, flags int) (err error) {
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if len(p) != 2 {
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return EINVAL
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}
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var pp [2]_C_int
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// pipe2 on dragonfly takes an fds array as an argument, but still
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// returns the file descriptors.
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p[0], p[1], err = pipe2(&pp, flags)
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return err
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}
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//sys extpread(fd int, p []byte, flags int, offset int64) (n int, err error)
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func Pread(fd int, p []byte, offset int64) (n int, err error) {
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return extpread(fd, p, 0, offset)
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}
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//sys extpwrite(fd int, p []byte, flags int, offset int64) (n int, err error)
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func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
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return extpwrite(fd, p, 0, offset)
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}
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func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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nfd, err = accept4(fd, &rsa, &len, flags)
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if err != nil {
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return
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}
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if len > SizeofSockaddrAny {
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panic("RawSockaddrAny too small")
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}
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sa, err = anyToSockaddr(fd, &rsa)
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if err != nil {
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Close(nfd)
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nfd = 0
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}
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return
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}
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//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
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func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
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var _p0 unsafe.Pointer
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var bufsize uintptr
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if len(buf) > 0 {
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_p0 = unsafe.Pointer(&buf[0])
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bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
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}
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r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
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n = int(r0)
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if e1 != 0 {
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err = e1
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}
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return
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}
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func setattrlistTimes(path string, times []Timespec, flags int) error {
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// used on Darwin for UtimesNano
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return ENOSYS
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}
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//sys ioctl(fd int, req uint, arg uintptr) (err error)
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//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
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func sysctlUname(mib []_C_int, old *byte, oldlen *uintptr) error {
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err := sysctl(mib, old, oldlen, nil, 0)
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if err != nil {
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// Utsname members on Dragonfly are only 32 bytes and
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// the syscall returns ENOMEM in case the actual value
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// is longer.
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if err == ENOMEM {
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err = nil
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}
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}
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return err
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}
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func Uname(uname *Utsname) error {
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mib := []_C_int{CTL_KERN, KERN_OSTYPE}
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n := unsafe.Sizeof(uname.Sysname)
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if err := sysctlUname(mib, &uname.Sysname[0], &n); err != nil {
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return err
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}
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uname.Sysname[unsafe.Sizeof(uname.Sysname)-1] = 0
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mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
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n = unsafe.Sizeof(uname.Nodename)
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if err := sysctlUname(mib, &uname.Nodename[0], &n); err != nil {
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return err
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}
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uname.Nodename[unsafe.Sizeof(uname.Nodename)-1] = 0
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mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
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n = unsafe.Sizeof(uname.Release)
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if err := sysctlUname(mib, &uname.Release[0], &n); err != nil {
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return err
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}
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uname.Release[unsafe.Sizeof(uname.Release)-1] = 0
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mib = []_C_int{CTL_KERN, KERN_VERSION}
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n = unsafe.Sizeof(uname.Version)
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if err := sysctlUname(mib, &uname.Version[0], &n); err != nil {
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return err
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}
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// The version might have newlines or tabs in it, convert them to
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// spaces.
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for i, b := range uname.Version {
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if b == '\n' || b == '\t' {
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if i == len(uname.Version)-1 {
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uname.Version[i] = 0
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} else {
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uname.Version[i] = ' '
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}
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}
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}
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mib = []_C_int{CTL_HW, HW_MACHINE}
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n = unsafe.Sizeof(uname.Machine)
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if err := sysctlUname(mib, &uname.Machine[0], &n); err != nil {
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return err
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}
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uname.Machine[unsafe.Sizeof(uname.Machine)-1] = 0
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return nil
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}
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func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
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if raceenabled {
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raceReleaseMerge(unsafe.Pointer(&ioSync))
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}
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return sendfile(outfd, infd, offset, count)
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}
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/*
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* Exposed directly
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*/
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//sys Access(path string, mode uint32) (err error)
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//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
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//sys Chdir(path string) (err error)
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//sys Chflags(path string, flags int) (err error)
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//sys Chmod(path string, mode uint32) (err error)
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//sys Chown(path string, uid int, gid int) (err error)
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//sys Chroot(path string) (err error)
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//sys Close(fd int) (err error)
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//sys Dup(fd int) (nfd int, err error)
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//sys Dup2(from int, to int) (err error)
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//sys Exit(code int)
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//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
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//sys Fchdir(fd int) (err error)
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//sys Fchflags(fd int, flags int) (err error)
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//sys Fchmod(fd int, mode uint32) (err error)
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//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
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//sys Fchown(fd int, uid int, gid int) (err error)
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//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
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//sys Flock(fd int, how int) (err error)
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//sys Fpathconf(fd int, name int) (val int, err error)
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//sys Fstat(fd int, stat *Stat_t) (err error)
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//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
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//sys Fstatfs(fd int, stat *Statfs_t) (err error)
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//sys Fsync(fd int) (err error)
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//sys Ftruncate(fd int, length int64) (err error)
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//sys Getdents(fd int, buf []byte) (n int, err error)
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//sys Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error)
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//sys Getdtablesize() (size int)
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//sysnb Getegid() (egid int)
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//sysnb Geteuid() (uid int)
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//sysnb Getgid() (gid int)
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//sysnb Getpgid(pid int) (pgid int, err error)
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//sysnb Getpgrp() (pgrp int)
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//sysnb Getpid() (pid int)
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//sysnb Getppid() (ppid int)
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//sys Getpriority(which int, who int) (prio int, err error)
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//sysnb Getrlimit(which int, lim *Rlimit) (err error)
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//sysnb Getrusage(who int, rusage *Rusage) (err error)
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//sysnb Getsid(pid int) (sid int, err error)
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//sysnb Gettimeofday(tv *Timeval) (err error)
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//sysnb Getuid() (uid int)
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//sys Issetugid() (tainted bool)
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//sys Kill(pid int, signum syscall.Signal) (err error)
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//sys Kqueue() (fd int, err error)
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//sys Lchown(path string, uid int, gid int) (err error)
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//sys Link(path string, link string) (err error)
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//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error)
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//sys Listen(s int, backlog int) (err error)
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//sys Lstat(path string, stat *Stat_t) (err error)
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//sys Mkdir(path string, mode uint32) (err error)
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//sys Mkdirat(dirfd int, path string, mode uint32) (err error)
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//sys Mkfifo(path string, mode uint32) (err error)
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//sys Mknod(path string, mode uint32, dev int) (err error)
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//sys Mknodat(fd int, path string, mode uint32, dev int) (err error)
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//sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
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//sys Open(path string, mode int, perm uint32) (fd int, err error)
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//sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error)
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//sys Pathconf(path string, name int) (val int, err error)
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//sys read(fd int, p []byte) (n int, err error)
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//sys Readlink(path string, buf []byte) (n int, err error)
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//sys Rename(from string, to string) (err error)
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//sys Renameat(fromfd int, from string, tofd int, to string) (err error)
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//sys Revoke(path string) (err error)
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//sys Rmdir(path string) (err error)
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//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
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//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
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//sysnb Setegid(egid int) (err error)
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//sysnb Seteuid(euid int) (err error)
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//sysnb Setgid(gid int) (err error)
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//sys Setlogin(name string) (err error)
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//sysnb Setpgid(pid int, pgid int) (err error)
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//sys Setpriority(which int, who int, prio int) (err error)
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//sysnb Setregid(rgid int, egid int) (err error)
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//sysnb Setreuid(ruid int, euid int) (err error)
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//sysnb Setresgid(rgid int, egid int, sgid int) (err error)
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//sysnb Setresuid(ruid int, euid int, suid int) (err error)
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//sysnb Setrlimit(which int, lim *Rlimit) (err error)
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//sysnb Setsid() (pid int, err error)
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//sysnb Settimeofday(tp *Timeval) (err error)
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//sysnb Setuid(uid int) (err error)
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//sys Stat(path string, stat *Stat_t) (err error)
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//sys Statfs(path string, stat *Statfs_t) (err error)
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//sys Symlink(path string, link string) (err error)
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//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error)
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//sys Sync() (err error)
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//sys Truncate(path string, length int64) (err error)
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//sys Umask(newmask int) (oldmask int)
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//sys Undelete(path string) (err error)
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//sys Unlink(path string) (err error)
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//sys Unlinkat(dirfd int, path string, flags int) (err error)
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//sys Unmount(path string, flags int) (err error)
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//sys write(fd int, p []byte) (n int, err error)
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//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
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//sys munmap(addr uintptr, length uintptr) (err error)
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//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
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//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
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//sys accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error)
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//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
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/*
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* Unimplemented
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* TODO(jsing): Update this list for DragonFly.
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*/
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// Profil
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// Sigaction
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// Sigprocmask
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// Getlogin
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// Sigpending
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// Sigaltstack
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// Reboot
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// Execve
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// Vfork
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// Sbrk
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// Sstk
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// Ovadvise
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// Mincore
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// Setitimer
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// Swapon
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// Select
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// Sigsuspend
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// Readv
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// Writev
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// Nfssvc
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// Getfh
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// Quotactl
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// Mount
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// Csops
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// Waitid
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// Add_profil
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// Kdebug_trace
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// Sigreturn
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// Atsocket
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// Kqueue_from_portset_np
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// Kqueue_portset
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// Getattrlist
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// Setattrlist
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// Getdirentriesattr
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// Searchfs
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// Delete
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// Copyfile
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// Watchevent
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// Waitevent
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// Modwatch
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// Getxattr
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// Fgetxattr
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// Setxattr
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// Fsetxattr
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// Removexattr
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// Fremovexattr
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// Listxattr
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// Flistxattr
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// Fsctl
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// Initgroups
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// Posix_spawn
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// Nfsclnt
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// Fhopen
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// Minherit
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// Semsys
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// Msgsys
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// Shmsys
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// Semctl
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// Semget
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// Semop
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// Msgctl
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// Msgget
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// Msgsnd
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// Msgrcv
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// Shmat
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// Shmctl
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// Shmdt
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// Shmget
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// Shm_open
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// Shm_unlink
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// Sem_open
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// Sem_close
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// Sem_unlink
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// Sem_wait
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// Sem_trywait
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// Sem_post
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// Sem_getvalue
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// Sem_init
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// Sem_destroy
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// Open_extended
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// Umask_extended
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// Stat_extended
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// Lstat_extended
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// Fstat_extended
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// Chmod_extended
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// Fchmod_extended
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// Access_extended
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// Settid
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// Gettid
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// Setsgroups
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// Getsgroups
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// Setwgroups
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// Getwgroups
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// Mkfifo_extended
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// Mkdir_extended
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// Identitysvc
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// Shared_region_check_np
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// Shared_region_map_np
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// __pthread_mutex_destroy
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// __pthread_mutex_init
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// __pthread_mutex_lock
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// __pthread_mutex_trylock
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// __pthread_mutex_unlock
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// __pthread_cond_init
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// __pthread_cond_destroy
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// __pthread_cond_broadcast
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// __pthread_cond_signal
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// Setsid_with_pid
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// __pthread_cond_timedwait
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// Aio_fsync
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// Aio_return
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// Aio_suspend
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// Aio_cancel
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// Aio_error
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// Aio_read
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// Aio_write
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// Lio_listio
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// __pthread_cond_wait
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// Iopolicysys
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// __pthread_kill
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// __pthread_sigmask
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// __sigwait
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// __disable_threadsignal
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// __pthread_markcancel
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// __pthread_canceled
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// __semwait_signal
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// Proc_info
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// Stat64_extended
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// Lstat64_extended
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// Fstat64_extended
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// __pthread_chdir
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// __pthread_fchdir
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// Audit
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// Auditon
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// Getauid
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// Setauid
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// Getaudit
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// Setaudit
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// Getaudit_addr
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// Setaudit_addr
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// Auditctl
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// Bsdthread_create
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// Bsdthread_terminate
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// Stack_snapshot
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// Bsdthread_register
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// Workq_open
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// Workq_ops
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// __mac_execve
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// __mac_syscall
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// __mac_get_file
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// __mac_set_file
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// __mac_get_link
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// __mac_set_link
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// __mac_get_proc
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// __mac_set_proc
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// __mac_get_fd
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// __mac_set_fd
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// __mac_get_pid
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// __mac_get_lcid
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// __mac_get_lctx
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// __mac_set_lctx
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// Setlcid
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// Read_nocancel
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// Write_nocancel
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// Open_nocancel
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// Close_nocancel
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// Wait4_nocancel
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// Recvmsg_nocancel
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// Sendmsg_nocancel
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// Recvfrom_nocancel
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// Accept_nocancel
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// Fcntl_nocancel
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// Select_nocancel
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// Fsync_nocancel
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// Connect_nocancel
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// Sigsuspend_nocancel
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// Readv_nocancel
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// Writev_nocancel
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// Sendto_nocancel
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// Pread_nocancel
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// Pwrite_nocancel
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// Waitid_nocancel
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// Msgsnd_nocancel
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// Msgrcv_nocancel
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// Sem_wait_nocancel
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// Aio_suspend_nocancel
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// __sigwait_nocancel
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// __semwait_signal_nocancel
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// __mac_mount
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// __mac_get_mount
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// __mac_getfsstat
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