func pipe2(flags int32) (r, w int32, errno int32) {
	var p [2]int32
	_, e := sysvicall2Err(&libc_pipe2, uintptr(noescape(unsafe.Pointer(&p))), uintptr(flags))
	return p[0], p[1], int32(e)
}

//go:nosplit
func fcntl(fd, cmd, arg int32) (ret int32, errno int32) {
	r1, err := sysvicall3Err(&libc_fcntl, uintptr(fd), uintptr(cmd), uintptr(arg))
	return int32(r1), int32(err)
}

func osyield1()

//go:nosplit

	return
}

var ioSync int64

func CloseOnExec(fd int) { fcntl(fd, F_SETFD, FD_CLOEXEC) }

func SetNonblock(fd int, nonblocking bool) (err error) {
	flag, err := fcntl(fd, F_GETFL, 0)
	if err != nil {
		return err
	}
	if nonblocking {
		flag |= O_NONBLOCK
	} else {
		flag &= ^O_NONBLOCK
	}
	_, err = fcntl(fd, F_SETFL, flag)
	return err
}

}

func Dup3(oldfd, newfd, flags int) error {
	if oldfd == newfd || flags&^O_CLOEXEC != 0 {
		return EINVAL
	}
	how := F_DUP2FD
	if flags&O_CLOEXEC != 0 {
		how = F_DUP2FD_CLOEXEC
	}
	_, err := fcntl(oldfd, how, newfd)
	return err
}

/*
 * Exposed directly
 */
//sys	Access(path string, mode uint32) (err error)
//sys	Adjtime(delta *Timeval, olddelta *Timeval) (err error)
//sys	CapEnter() (err error)

func fcntl(fd int, cmd int, arg int) (val int, err error) {
	r0, _, e1 := syscall(abi.FuncPCABI0(libc_fcntl_trampoline), uintptr(fd), uintptr(cmd), uintptr(arg))
	val = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_fcntl_trampoline()

//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"

// 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"

func fcntl(fd int, cmd int, arg int) (n int, err error) {
	r0, _, e1 := syscall_syscall(libc_fcntl_trampoline_addr, uintptr(fd), uintptr(cmd), uintptr(arg))
	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_fcntl_trampoline_addr uintptr

//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"

func fcntl(fd int, cmd int, arg int) (n int, err error) {
	r0, _, e1 := syscall_syscall(libc_fcntl_trampoline_addr, uintptr(fd), uintptr(cmd), uintptr(arg))
	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

var libc_fcntl_trampoline_addr uintptr

//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"

func fcntl(fd int, cmd int, arg int) (val int, err error) {
	r0, _, e1 := syscall(abi.FuncPCABI0(libc_fcntl_trampoline), uintptr(fd), uintptr(cmd), uintptr(arg))
	val = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_fcntl_trampoline()

//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"

func fcntl(fd int, cmd int, arg int) (val int, err error) {
	r0, _, e1 := syscall(abi.FuncPCABI0(libc_fcntl_trampoline), uintptr(fd), uintptr(cmd), uintptr(arg))
	val = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_fcntl_trampoline()

//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"

func fcntl(fd int, cmd int, arg int) (val int, err error) {
	r0, _, e1 := syscall(abi.FuncPCABI0(libc_fcntl_trampoline), uintptr(fd), uintptr(cmd), uintptr(arg))
	val = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_fcntl_trampoline()

//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"