//sys	Chown(path string, uid int, gid int) (err error)
//sys	Chroot(path string) (err error)
//sys	Close(fd int) (err error)
//sys	closedir(dir uintptr) (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	Fchdir(fd int) (err error)
//sys	Fchflags(fd int, flags int) (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	Dup(fd int) (nfd int, err error)
//sys	Dup2(from int, to int) (err error)
//sys	Exit(code int)
//sys	ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)

			if err1 != 0 {
				goto childerror
			}
			fd[i] = nextfd
			nextfd++
		}
	}

	// Pass 2: dup fd[i] down onto i.
	for i = 0; i < len(fd); i++ {
		if fd[i] == -1 {
			RawSyscall(SYS_CLOSE, uintptr(i), 0, 0)
			continue
		}
		if fd[i] == i {
			// dup2(i, i) won't clear close-on-exec flag on Linux,
			// probably not elsewhere either.

func Dup2(from int, to int) (err error) {
	_, _, e1 := syscall(abi.FuncPCABI0(libc_dup2_trampoline), uintptr(from), uintptr(to), 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_dup2_trampoline()

//go:cgo_import_dynamic libc_dup2 dup2 "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func dup3(from int, to int, flags int) (err error) {

// Code generated by the command above; DO NOT EDIT.

//go:build aix && ppc64

package syscall

import "unsafe"

//go:cgo_import_dynamic libc_fcntl fcntl "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_Dup2 dup2 "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_pipe pipe "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_readlink readlink "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_utimes utimes "libc.a/shr_64.o"

func Dup2(from int, to int) (err error) {
	_, _, e1 := syscall(abi.FuncPCABI0(libc_dup2_trampoline), uintptr(from), uintptr(to), 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_dup2_trampoline()

//go:cgo_import_dynamic libc_dup2 dup2 "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func dup3(from int, to int, flags int) (err error) {

func Dup2(from int, to int) (err error) {
	_, _, e1 := syscall_syscall(libc_dup2_trampoline_addr, uintptr(from), uintptr(to), 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_dup2_trampoline_addr uintptr

//go:cgo_import_dynamic libc_dup2 dup2 "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Dup3(from int, to int, flags int) (err error) {

func Dup2(from int, to int) (err error) {
	_, _, e1 := syscall_syscall(libc_dup2_trampoline_addr, uintptr(from), uintptr(to), 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_dup2_trampoline_addr uintptr

//go:cgo_import_dynamic libc_dup2 dup2 "libc.so"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Dup3(from int, to int, flags int) (err error) {

	var newoffset filesize
	errno := fd_seek(int32(fd), filedelta(offset), uint32(whence), unsafe.Pointer(&newoffset))
	return int64(newoffset), errnoErr(errno)
}

func Dup(fd int) (int, error) {
	return 0, ENOSYS
}

func Dup2(fd, newfd int) error {
	return ENOSYS
}

func Pipe(fd []int) error {
	return ENOSYS
}

func RandomGet(b []byte) error {

// But, as fcntl is currently not exported and isn't called with F_DUP2FD,
// it doesn't matter.
//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
//sys	Dup2(old int, new int) (err error)

//sysnb pipe(p *[2]_C_int) (err error)

func Pipe(p []int) (err error) {
	if len(p) != 2 {
		return EINVAL
	}
	var pp [2]_C_int
	err = pipe(&pp)
	if err == nil {