udpate to use latest dep, update figtree

2026-06-07 13:33:32 +02:00 · 2018-07-28 15:49:57 -07:00
parent eead13aef1
commit 462ef1c485
254 changed files with 698 additions and 43003 deletions
@@ -1,10 +0,0 @@
-# Treat all files in this repo as binary, with no git magic updating
-# line endings. Windows users contributing to Go will need to use a
-# modern version of git and editors capable of LF line endings.
-#
-# We'll prevent accidental CRLF line endings from entering the repo
-# via the git-review gofmt checks.
-#
-# See golang.org/issue/9281
-
-* -text
@@ -1,2 +0,0 @@
-# Add no patterns to .hgignore except for files generated by the build.
-last-change
@@ -1,31 +0,0 @@
-# Contributing to Go
-
-Go is an open source project.
-
-It is the work of hundreds of contributors. We appreciate your help!
-
-
-## Filing issues
-
-When [filing an issue](https://golang.org/issue/new), make sure to answer these five questions:
-
-1. What version of Go are you using (`go version`)?
-2. What operating system and processor architecture are you using?
-3. What did you do?
-4. What did you expect to see?
-5. What did you see instead?
-
-General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
-The gophers there will answer or ask you to file an issue if you've tripped over a bug.
-
-## Contributing code
-
-Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
-before sending patches.
-
-**We do not accept GitHub pull requests**
-(we use [Gerrit](https://code.google.com/p/gerrit/) instead for code review).
-
-Unless otherwise noted, the Go source files are distributed under
-the BSD-style license found in the LICENSE file.
-
@@ -1,3 +0,0 @@
-This repository holds supplemental Go packages for low-level interactions with the operating system.
-
-To submit changes to this repository, see http://golang.org/doc/contribute.html.
@@ -1 +0,0 @@
-issuerepo: golang/go
@@ -1 +0,0 @@
-_obj/
@@ -1,173 +0,0 @@
-# Building `sys/unix`
-
-The sys/unix package provides access to the raw system call interface of the
-underlying operating system. See: https://godoc.org/golang.org/x/sys/unix
-
-Porting Go to a new architecture/OS combination or adding syscalls, types, or
-constants to an existing architecture/OS pair requires some manual effort;
-however, there are tools that automate much of the process.
-
-## Build Systems
-
-There are currently two ways we generate the necessary files. We are currently
-migrating the build system to use containers so the builds are reproducible.
-This is being done on an OS-by-OS basis. Please update this documentation as
-components of the build system change.
-
-### Old Build System (currently for `GOOS != "Linux" || GOARCH == "sparc64"`)
-
-The old build system generates the Go files based on the C header files
-present on your system. This means that files
-for a given GOOS/GOARCH pair must be generated on a system with that OS and
-architecture. This also means that the generated code can differ from system
-to system, based on differences in the header files.
-
-To avoid this, if you are using the old build system, only generate the Go
-files on an installation with unmodified header files. It is also important to
-keep track of which version of the OS the files were generated from (ex.
-Darwin 14 vs Darwin 15). This makes it easier to track the progress of changes
-and have each OS upgrade correspond to a single change.
-
-To build the files for your current OS and architecture, make sure GOOS and
-GOARCH are set correctly and run `mkall.sh`. This will generate the files for
-your specific system. Running `mkall.sh -n` shows the commands that will be run.
-
-Requirements: bash, perl, go
-
-### New Build System (currently for `GOOS == "Linux" && GOARCH != "sparc64"`)
-
-The new build system uses a Docker container to generate the go files directly
-from source checkouts of the kernel and various system libraries. This means
-that on any platform that supports Docker, all the files using the new build
-system can be generated at once, and generated files will not change based on
-what the person running the scripts has installed on their computer.
-
-The OS specific files for the new build system are located in the `${GOOS}`
-directory, and the build is coordinated by the `${GOOS}/mkall.go` program. When
-the kernel or system library updates, modify the Dockerfile at
-`${GOOS}/Dockerfile` to checkout the new release of the source.
-
-To build all the files under the new build system, you must be on an amd64/Linux
-system and have your GOOS and GOARCH set accordingly. Running `mkall.sh` will
-then generate all of the files for all of the GOOS/GOARCH pairs in the new build
-system. Running `mkall.sh -n` shows the commands that will be run.
-
-Requirements: bash, perl, go, docker
-
-## Component files
-
-This section describes the various files used in the code generation process.
-It also contains instructions on how to modify these files to add a new
-architecture/OS or to add additional syscalls, types, or constants. Note that
-if you are using the new build system, the scripts cannot be called normally.
-They must be called from within the docker container.
-
-### asm files
-
-The hand-written assembly file at `asm_${GOOS}_${GOARCH}.s` implements system
-call dispatch. There are three entry points:
-```
-  func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
-  func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
-  func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
-```
-The first and second are the standard ones; they differ only in how many
-arguments can be passed to the kernel. The third is for low-level use by the
-ForkExec wrapper. Unlike the first two, it does not call into the scheduler to
-let it know that a system call is running.
-
-When porting Go to an new architecture/OS, this file must be implemented for
-each GOOS/GOARCH pair.
-
-### mksysnum
-
-Mksysnum is a script located at `${GOOS}/mksysnum.pl` (or `mksysnum_${GOOS}.pl`
-for the old system). This script takes in a list of header files containing the
-syscall number declarations and parses them to produce the corresponding list of
-Go numeric constants. See `zsysnum_${GOOS}_${GOARCH}.go` for the generated
-constants.
-
-Adding new syscall numbers is mostly done by running the build on a sufficiently
-new installation of the target OS (or updating the source checkouts for the
-new build system). However, depending on the OS, you make need to update the
-parsing in mksysnum.
-
-### mksyscall.pl
-
-The `syscall.go`, `syscall_${GOOS}.go`, `syscall_${GOOS}_${GOARCH}.go` are
-hand-written Go files which implement system calls (for unix, the specific OS,
-or the specific OS/Architecture pair respectively) that need special handling
-and list `//sys` comments giving prototypes for ones that can be generated.
-
-The mksyscall.pl script takes the `//sys` and `//sysnb` comments and converts
-them into syscalls. This requires the name of the prototype in the comment to
-match a syscall number in the `zsysnum_${GOOS}_${GOARCH}.go` file. The function
-prototype can be exported (capitalized) or not.
-
-Adding a new syscall often just requires adding a new `//sys` function prototype
-with the desired arguments and a capitalized name so it is exported. However, if
-you want the interface to the syscall to be different, often one will make an
-unexported `//sys` prototype, an then write a custom wrapper in
-`syscall_${GOOS}.go`.
-
-### types files
-
-For each OS, there is a hand-written Go file at `${GOOS}/types.go` (or
-`types_${GOOS}.go` on the old system). This file includes standard C headers and
-creates Go type aliases to the corresponding C types. The file is then fed
-through godef to get the Go compatible definitions. Finally, the generated code
-is fed though mkpost.go to format the code correctly and remove any hidden or
-private identifiers. This cleaned-up code is written to
-`ztypes_${GOOS}_${GOARCH}.go`.
-
-The hardest part about preparing this file is figuring out which headers to
-include and which symbols need to be `#define`d to get the actual data
-structures that pass through to the kernel system calls. Some C libraries
-preset alternate versions for binary compatibility and translate them on the
-way in and out of system calls, but there is almost always a `#define` that can
-get the real ones.
-See `types_darwin.go` and `linux/types.go` for examples.
-
-To add a new type, add in the necessary include statement at the top of the
-file (if it is not already there) and add in a type alias line. Note that if
-your type is significantly different on different architectures, you may need
-some `#if/#elif` macros in your include statements.
-
-### mkerrors.sh
-
-This script is used to generate the system's various constants. This doesn't
-just include the error numbers and error strings, but also the signal numbers
-an a wide variety of miscellaneous constants. The constants come from the list
-of include files in the `includes_${uname}` variable. A regex then picks out
-the desired `#define` statements, and generates the corresponding Go constants.
-The error numbers and strings are generated from `#include <errno.h>`, and the
-signal numbers and strings are generated from `#include <signal.h>`. All of
-these constants are written to `zerrors_${GOOS}_${GOARCH}.go` via a C program,
-`_errors.c`, which prints out all the constants.
-
-To add a constant, add the header that includes it to the appropriate variable.
-Then, edit the regex (if necessary) to match the desired constant. Avoid making
-the regex too broad to avoid matching unintended constants.
-
-
-## Generated files
-
-### `zerror_${GOOS}_${GOARCH}.go`
-
-A file containing all of the system's generated error numbers, error strings,
-signal numbers, and constants. Generated by `mkerrors.sh` (see above).
-
-### `zsyscall_${GOOS}_${GOARCH}.go`
-
-A file containing all the generated syscalls for a specific GOOS and GOARCH.
-Generated by `mksyscall.pl` (see above).
-
-### `zsysnum_${GOOS}_${GOARCH}.go`
-
-A list of numeric constants for all the syscall number of the specific GOOS
-and GOARCH. Generated by mksysnum (see above).
-
-### `ztypes_${GOOS}_${GOARCH}.go`
-
-A file containing Go types for passing into (or returning from) syscalls.
-Generated by godefs and the types file (see above).
@@ -1,136 +0,0 @@
-// Copyright 2012 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.
-
-// +build linux
-
-package unix_test
-
-import (
-	"bytes"
-	"net"
-	"os"
-	"syscall"
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-// TestSCMCredentials tests the sending and receiving of credentials
-// (PID, UID, GID) in an ancillary message between two UNIX
-// sockets. The SO_PASSCRED socket option is enabled on the sending
-// socket for this to work.
-func TestSCMCredentials(t *testing.T) {
-	socketTypeTests := []struct {
-		socketType int
-		dataLen    int
-	}{
-		{
-			unix.SOCK_STREAM,
-			1,
-		}, {
-			unix.SOCK_DGRAM,
-			0,
-		},
-	}
-
-	for _, tt := range socketTypeTests {
-		fds, err := unix.Socketpair(unix.AF_LOCAL, tt.socketType, 0)
-		if err != nil {
-			t.Fatalf("Socketpair: %v", err)
-		}
-		defer unix.Close(fds[0])
-		defer unix.Close(fds[1])
-
-		err = unix.SetsockoptInt(fds[0], unix.SOL_SOCKET, unix.SO_PASSCRED, 1)
-		if err != nil {
-			t.Fatalf("SetsockoptInt: %v", err)
-		}
-
-		srvFile := os.NewFile(uintptr(fds[0]), "server")
-		defer srvFile.Close()
-		srv, err := net.FileConn(srvFile)
-		if err != nil {
-			t.Errorf("FileConn: %v", err)
-			return
-		}
-		defer srv.Close()
-
-		cliFile := os.NewFile(uintptr(fds[1]), "client")
-		defer cliFile.Close()
-		cli, err := net.FileConn(cliFile)
-		if err != nil {
-			t.Errorf("FileConn: %v", err)
-			return
-		}
-		defer cli.Close()
-
-		var ucred unix.Ucred
-		if os.Getuid() != 0 {
-			ucred.Pid = int32(os.Getpid())
-			ucred.Uid = 0
-			ucred.Gid = 0
-			oob := unix.UnixCredentials(&ucred)
-			_, _, err := cli.(*net.UnixConn).WriteMsgUnix(nil, oob, nil)
-			if op, ok := err.(*net.OpError); ok {
-				err = op.Err
-			}
-			if sys, ok := err.(*os.SyscallError); ok {
-				err = sys.Err
-			}
-			if err != syscall.EPERM {
-				t.Fatalf("WriteMsgUnix failed with %v, want EPERM", err)
-			}
-		}
-
-		ucred.Pid = int32(os.Getpid())
-		ucred.Uid = uint32(os.Getuid())
-		ucred.Gid = uint32(os.Getgid())
-		oob := unix.UnixCredentials(&ucred)
-
-		// On SOCK_STREAM, this is internally going to send a dummy byte
-		n, oobn, err := cli.(*net.UnixConn).WriteMsgUnix(nil, oob, nil)
-		if err != nil {
-			t.Fatalf("WriteMsgUnix: %v", err)
-		}
-		if n != 0 {
-			t.Fatalf("WriteMsgUnix n = %d, want 0", n)
-		}
-		if oobn != len(oob) {
-			t.Fatalf("WriteMsgUnix oobn = %d, want %d", oobn, len(oob))
-		}
-
-		oob2 := make([]byte, 10*len(oob))
-		n, oobn2, flags, _, err := srv.(*net.UnixConn).ReadMsgUnix(nil, oob2)
-		if err != nil {
-			t.Fatalf("ReadMsgUnix: %v", err)
-		}
-		if flags != 0 {
-			t.Fatalf("ReadMsgUnix flags = 0x%x, want 0", flags)
-		}
-		if n != tt.dataLen {
-			t.Fatalf("ReadMsgUnix n = %d, want %d", n, tt.dataLen)
-		}
-		if oobn2 != oobn {
-			// without SO_PASSCRED set on the socket, ReadMsgUnix will
-			// return zero oob bytes
-			t.Fatalf("ReadMsgUnix oobn = %d, want %d", oobn2, oobn)
-		}
-		oob2 = oob2[:oobn2]
-		if !bytes.Equal(oob, oob2) {
-			t.Fatal("ReadMsgUnix oob bytes don't match")
-		}
-
-		scm, err := unix.ParseSocketControlMessage(oob2)
-		if err != nil {
-			t.Fatalf("ParseSocketControlMessage: %v", err)
-		}
-		newUcred, err := unix.ParseUnixCredentials(&scm[0])
-		if err != nil {
-			t.Fatalf("ParseUnixCredentials: %v", err)
-		}
-		if *newUcred != ucred {
-			t.Fatalf("ParseUnixCredentials = %+v, want %+v", newUcred, ucred)
-		}
-	}
-}
@@ -1,49 +0,0 @@
-// Copyright 2017 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.
-
-package unix_test
-
-import (
-	"fmt"
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-func TestDevices(t *testing.T) {
-	testCases := []struct {
-		path  string
-		major uint32
-		minor uint32
-	}{
-		// Most of the device major/minor numbers on Darwin are
-		// dynamically generated by devfs. These are some well-known
-		// static numbers.
-		{"/dev/ttyp0", 4, 0},
-		{"/dev/ttys0", 4, 48},
-		{"/dev/ptyp0", 5, 0},
-		{"/dev/ptyr0", 5, 32},
-	}
-	for _, tc := range testCases {
-		t.Run(fmt.Sprintf("%s %v:%v", tc.path, tc.major, tc.minor), func(t *testing.T) {
-			var stat unix.Stat_t
-			err := unix.Stat(tc.path, &stat)
-			if err != nil {
-				t.Errorf("failed to stat device: %v", err)
-				return
-			}
-
-			dev := uint64(stat.Rdev)
-			if unix.Major(dev) != tc.major {
-				t.Errorf("for %s Major(%#x) == %d, want %d", tc.path, dev, unix.Major(dev), tc.major)
-			}
-			if unix.Minor(dev) != tc.minor {
-				t.Errorf("for %s Minor(%#x) == %d, want %d", tc.path, dev, unix.Minor(dev), tc.minor)
-			}
-			if unix.Mkdev(tc.major, tc.minor) != dev {
-				t.Errorf("for %s Mkdev(%d, %d) == %#x, want %#x", tc.path, tc.major, tc.minor, unix.Mkdev(tc.major, tc.minor), dev)
-			}
-		})
-	}
-}
@@ -1,48 +0,0 @@
-// Copyright 2017 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.
-
-package unix_test
-
-import (
-	"fmt"
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-func TestDevices(t *testing.T) {
-	testCases := []struct {
-		path  string
-		major uint32
-		minor uint32
-	}{
-		// Minor is a cookie instead of an index on DragonFlyBSD
-		{"/dev/null", 10, 0x00000002},
-		{"/dev/random", 10, 0x00000003},
-		{"/dev/urandom", 10, 0x00000004},
-		{"/dev/zero", 10, 0x0000000c},
-		{"/dev/bpf", 15, 0xffff00ff},
-	}
-	for _, tc := range testCases {
-		t.Run(fmt.Sprintf("%s %v:%v", tc.path, tc.major, tc.minor), func(t *testing.T) {
-			var stat unix.Stat_t
-			err := unix.Stat(tc.path, &stat)
-			if err != nil {
-				t.Errorf("failed to stat device: %v", err)
-				return
-			}
-
-			dev := uint64(stat.Rdev)
-			if unix.Major(dev) != tc.major {
-				t.Errorf("for %s Major(%#x) == %d, want %d", tc.path, dev, unix.Major(dev), tc.major)
-			}
-			if unix.Minor(dev) != tc.minor {
-				t.Errorf("for %s Minor(%#x) == %d, want %d", tc.path, dev, unix.Minor(dev), tc.minor)
-			}
-			if unix.Mkdev(tc.major, tc.minor) != dev {
-				t.Errorf("for %s Mkdev(%d, %d) == %#x, want %#x", tc.path, tc.major, tc.minor, unix.Mkdev(tc.major, tc.minor), dev)
-			}
-		})
-	}
-}
@@ -1,51 +0,0 @@
-// Copyright 2017 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.
-
-package unix_test
-
-import (
-	"fmt"
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-func TestDevices(t *testing.T) {
-	testCases := []struct {
-		path  string
-		major uint32
-		minor uint32
-	}{
-		// well known major/minor numbers according to
-		// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/admin-guide/devices.txt
-		{"/dev/null", 1, 3},
-		{"/dev/zero", 1, 5},
-		{"/dev/random", 1, 8},
-		{"/dev/full", 1, 7},
-		{"/dev/urandom", 1, 9},
-		{"/dev/tty", 5, 0},
-	}
-	for _, tc := range testCases {
-		t.Run(fmt.Sprintf("%s %v:%v", tc.path, tc.major, tc.minor), func(t *testing.T) {
-			var stat unix.Stat_t
-			err := unix.Stat(tc.path, &stat)
-			if err != nil {
-				t.Errorf("failed to stat device: %v", err)
-				return
-			}
-
-			dev := uint64(stat.Rdev)
-			if unix.Major(dev) != tc.major {
-				t.Errorf("for %s Major(%#x) == %d, want %d", tc.path, dev, unix.Major(dev), tc.major)
-			}
-			if unix.Minor(dev) != tc.minor {
-				t.Errorf("for %s Minor(%#x) == %d, want %d", tc.path, dev, unix.Minor(dev), tc.minor)
-			}
-			if unix.Mkdev(tc.major, tc.minor) != dev {
-				t.Errorf("for %s Mkdev(%d, %d) == %#x, want %#x", tc.path, tc.major, tc.minor, unix.Mkdev(tc.major, tc.minor), dev)
-			}
-		})
-
-	}
-}
@@ -1,50 +0,0 @@
-// Copyright 2017 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.
-
-package unix_test
-
-import (
-	"fmt"
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-func TestDevices(t *testing.T) {
-	testCases := []struct {
-		path  string
-		major uint32
-		minor uint32
-	}{
-		// well known major/minor numbers according to /dev/MAKEDEV on
-		// NetBSD 7.0
-		{"/dev/null", 2, 2},
-		{"/dev/zero", 2, 12},
-		{"/dev/ttyp0", 5, 0},
-		{"/dev/ttyp1", 5, 1},
-		{"/dev/random", 46, 0},
-		{"/dev/urandom", 46, 1},
-	}
-	for _, tc := range testCases {
-		t.Run(fmt.Sprintf("%s %v:%v", tc.path, tc.major, tc.minor), func(t *testing.T) {
-			var stat unix.Stat_t
-			err := unix.Stat(tc.path, &stat)
-			if err != nil {
-				t.Errorf("failed to stat device: %v", err)
-				return
-			}
-
-			dev := uint64(stat.Rdev)
-			if unix.Major(dev) != tc.major {
-				t.Errorf("for %s Major(%#x) == %d, want %d", tc.path, dev, unix.Major(dev), tc.major)
-			}
-			if unix.Minor(dev) != tc.minor {
-				t.Errorf("for %s Minor(%#x) == %d, want %d", tc.path, dev, unix.Minor(dev), tc.minor)
-			}
-			if unix.Mkdev(tc.major, tc.minor) != dev {
-				t.Errorf("for %s Mkdev(%d, %d) == %#x, want %#x", tc.path, tc.major, tc.minor, unix.Mkdev(tc.major, tc.minor), dev)
-			}
-		})
-	}
-}
@@ -1,9 +0,0 @@
-// Copyright 2015 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.
-
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
-
-package unix
-
-var Itoa = itoa
@@ -1,197 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2009 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.
-
-# This script runs or (given -n) prints suggested commands to generate files for
-# the Architecture/OS specified by the GOARCH and GOOS environment variables.
-# See README.md for more information about how the build system works.
-
-GOOSARCH="${GOOS}_${GOARCH}"
-
-# defaults
-mksyscall="./mksyscall.pl"
-mkerrors="./mkerrors.sh"
-zerrors="zerrors_$GOOSARCH.go"
-mksysctl=""
-zsysctl="zsysctl_$GOOSARCH.go"
-mksysnum=
-mktypes=
-run="sh"
-cmd=""
-
-case "$1" in
-syscalls)
-	for i in zsyscall*go
-	do
-		# Run the command line that appears in the first line
-		# of the generated file to regenerate it.
-		sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
-		rm _$i
-	done
-	exit 0
-	;;
-n)
-	run="cat"
-	cmd="echo"
-	shift
-esac
-
-case "$#" in
-0)
-	;;
-*)
-	echo 'usage: mkall.sh [-n]' 1>&2
-	exit 2
-esac
-
-if [[ "$GOOS" = "linux" ]] && [[ "$GOARCH" != "sparc64" ]]; then
-	# Use then new build system
-	# Files generated through docker (use $cmd so you can Ctl-C the build or run)
-	$cmd docker build --tag generate:$GOOS $GOOS
-	$cmd docker run --interactive --tty --volume $(dirname "$(readlink -f "$0")"):/build generate:$GOOS
-	exit
-fi
-
-GOOSARCH_in=syscall_$GOOSARCH.go
-case "$GOOSARCH" in
-_* | *_ | _)
-	echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
-	exit 1
-	;;
-darwin_386)
-	mkerrors="$mkerrors -m32"
-	mksyscall="./mksyscall.pl -l32"
-	mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-darwin_amd64)
-	mkerrors="$mkerrors -m64"
-	mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-darwin_arm)
-	mkerrors="$mkerrors"
-	mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-darwin_arm64)
-	mkerrors="$mkerrors -m64"
-	mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-dragonfly_386)
-	mkerrors="$mkerrors -m32"
-	mksyscall="./mksyscall.pl -l32 -dragonfly"
-	mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-dragonfly_amd64)
-	mkerrors="$mkerrors -m64"
-	mksyscall="./mksyscall.pl -dragonfly"
-	mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-freebsd_386)
-	mkerrors="$mkerrors -m32"
-	mksyscall="./mksyscall.pl -l32"
-	mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-freebsd_amd64)
-	mkerrors="$mkerrors -m64"
-	mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-freebsd_arm)
-	mkerrors="$mkerrors"
-	mksyscall="./mksyscall.pl -l32 -arm"
-	mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
-	# Let the type of C char be signed for making the bare syscall
-	# API consistent across platforms.
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
-	;;
-linux_sparc64)
-	GOOSARCH_in=syscall_linux_sparc64.go
-	unistd_h=/usr/include/sparc64-linux-gnu/asm/unistd.h
-	mkerrors="$mkerrors -m64"
-	mksysnum="./mksysnum_linux.pl $unistd_h"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-netbsd_386)
-	mkerrors="$mkerrors -m32"
-	mksyscall="./mksyscall.pl -l32 -netbsd"
-	mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-netbsd_amd64)
-	mkerrors="$mkerrors -m64"
-	mksyscall="./mksyscall.pl -netbsd"
-	mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-netbsd_arm)
-	mkerrors="$mkerrors"
-	mksyscall="./mksyscall.pl -l32 -netbsd -arm"
-	mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
-	# Let the type of C char be signed for making the bare syscall
-	# API consistent across platforms.
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
-	;;
-openbsd_386)
-	mkerrors="$mkerrors -m32"
-	mksyscall="./mksyscall.pl -l32 -openbsd"
-	mksysctl="./mksysctl_openbsd.pl"
-	zsysctl="zsysctl_openbsd.go"
-	mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-openbsd_amd64)
-	mkerrors="$mkerrors -m64"
-	mksyscall="./mksyscall.pl -openbsd"
-	mksysctl="./mksysctl_openbsd.pl"
-	zsysctl="zsysctl_openbsd.go"
-	mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-openbsd_arm)
-	mkerrors="$mkerrors"
-	mksyscall="./mksyscall.pl -l32 -openbsd -arm"
-	mksysctl="./mksysctl_openbsd.pl"
-	zsysctl="zsysctl_openbsd.go"
-	mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
-	# Let the type of C char be signed for making the bare syscall
-	# API consistent across platforms.
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
-	;;
-solaris_amd64)
-	mksyscall="./mksyscall_solaris.pl"
-	mkerrors="$mkerrors -m64"
-	mksysnum=
-	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
-	;;
-*)
-	echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
-	exit 1
-	;;
-esac
-
-(
-	if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
-	case "$GOOS" in
-	*)
-		syscall_goos="syscall_$GOOS.go"
-		case "$GOOS" in
-		darwin | dragonfly | freebsd | netbsd | openbsd)
-			syscall_goos="syscall_bsd.go $syscall_goos"
-			;;
-		esac
-		if [ -n "$mksyscall" ]; then echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go"; fi
-		;;
-	esac
-	if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
-	if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
-	if [ -n "$mktypes" ]; then
-		echo "$mktypes types_$GOOS.go | go run mkpost.go > ztypes_$GOOSARCH.go";
-	fi
-) | $run
@@ -1,563 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2009 The Go Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-
-# Generate Go code listing errors and other #defined constant
-# values (ENAMETOOLONG etc.), by asking the preprocessor
-# about the definitions.
-
-unset LANG
-export LC_ALL=C
-export LC_CTYPE=C
-
-if test -z "$GOARCH" -o -z "$GOOS"; then
-	echo 1>&2 "GOARCH or GOOS not defined in environment"
-	exit 1
-fi
-
-# Check that we are using the new build system if we should
-if [[ "$GOOS" = "linux" ]] && [[ "$GOARCH" != "sparc64" ]]; then
-	if [[ "$GOLANG_SYS_BUILD" != "docker" ]]; then
-		echo 1>&2 "In the new build system, mkerrors should not be called directly."
-		echo 1>&2 "See README.md"
-		exit 1
-	fi
-fi
-
-CC=${CC:-cc}
-
-if [[ "$GOOS" = "solaris" ]]; then
-	# Assumes GNU versions of utilities in PATH.
-	export PATH=/usr/gnu/bin:$PATH
-fi
-
-uname=$(uname)
-
-includes_Darwin='
-#define _DARWIN_C_SOURCE
-#define KERNEL
-#define _DARWIN_USE_64_BIT_INODE
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/ptrace.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/sysctl.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_types.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/ip.h>
-#include <termios.h>
-'
-
-includes_DragonFly='
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/sysctl.h>
-#include <sys/mman.h>
-#include <sys/wait.h>
-#include <sys/ioctl.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_types.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <termios.h>
-#include <netinet/ip.h>
-#include <net/ip_mroute/ip_mroute.h>
-'
-
-includes_FreeBSD='
-#include <sys/capability.h>
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/sysctl.h>
-#include <sys/mman.h>
-#include <sys/wait.h>
-#include <sys/ioctl.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_types.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <termios.h>
-#include <netinet/ip.h>
-#include <netinet/ip_mroute.h>
-#include <sys/extattr.h>
-
-#if __FreeBSD__ >= 10
-#define IFT_CARP	0xf8	// IFT_CARP is deprecated in FreeBSD 10
-#undef SIOCAIFADDR
-#define SIOCAIFADDR	_IOW(105, 26, struct oifaliasreq)	// ifaliasreq contains if_data
-#undef SIOCSIFPHYADDR
-#define SIOCSIFPHYADDR	_IOW(105, 70, struct oifaliasreq)	// ifaliasreq contains if_data
-#endif
-'
-
-includes_Linux='
-#define _LARGEFILE_SOURCE
-#define _LARGEFILE64_SOURCE
-#ifndef __LP64__
-#define _FILE_OFFSET_BITS 64
-#endif
-#define _GNU_SOURCE
-
-// <sys/ioctl.h> is broken on powerpc64, as it fails to include definitions of
-// these structures. We just include them copied from <bits/termios.h>.
-#if defined(__powerpc__)
-struct sgttyb {
-        char    sg_ispeed;
-        char    sg_ospeed;
-        char    sg_erase;
-        char    sg_kill;
-        short   sg_flags;
-};
-
-struct tchars {
-        char    t_intrc;
-        char    t_quitc;
-        char    t_startc;
-        char    t_stopc;
-        char    t_eofc;
-        char    t_brkc;
-};
-
-struct ltchars {
-        char    t_suspc;
-        char    t_dsuspc;
-        char    t_rprntc;
-        char    t_flushc;
-        char    t_werasc;
-        char    t_lnextc;
-};
-#endif
-
-#include <bits/sockaddr.h>
-#include <sys/epoll.h>
-#include <sys/eventfd.h>
-#include <sys/inotify.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/prctl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <sys/xattr.h>
-#include <linux/if.h>
-#include <linux/if_alg.h>
-#include <linux/if_arp.h>
-#include <linux/if_ether.h>
-#include <linux/if_tun.h>
-#include <linux/if_packet.h>
-#include <linux/if_addr.h>
-#include <linux/falloc.h>
-#include <linux/filter.h>
-#include <linux/fs.h>
-#include <linux/keyctl.h>
-#include <linux/netlink.h>
-#include <linux/perf_event.h>
-#include <linux/random.h>
-#include <linux/reboot.h>
-#include <linux/rtnetlink.h>
-#include <linux/ptrace.h>
-#include <linux/sched.h>
-#include <linux/seccomp.h>
-#include <linux/sockios.h>
-#include <linux/wait.h>
-#include <linux/icmpv6.h>
-#include <linux/serial.h>
-#include <linux/can.h>
-#include <linux/vm_sockets.h>
-#include <linux/taskstats.h>
-#include <linux/genetlink.h>
-#include <net/route.h>
-#include <asm/termbits.h>
-
-#ifndef MSG_FASTOPEN
-#define MSG_FASTOPEN    0x20000000
-#endif
-
-#ifndef PTRACE_GETREGS
-#define PTRACE_GETREGS	0xc
-#endif
-
-#ifndef PTRACE_SETREGS
-#define PTRACE_SETREGS	0xd
-#endif
-
-#ifndef SOL_NETLINK
-#define SOL_NETLINK	270
-#endif
-
-#ifdef SOL_BLUETOOTH
-// SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
-// but it is already in bluetooth_linux.go
-#undef SOL_BLUETOOTH
-#endif
-
-// Certain constants are missing from the fs/crypto UAPI
-#define FS_KEY_DESC_PREFIX              "fscrypt:"
-#define FS_KEY_DESC_PREFIX_SIZE         8
-#define FS_MAX_KEY_SIZE                 64
-'
-
-includes_NetBSD='
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/sysctl.h>
-#include <sys/termios.h>
-#include <sys/ttycom.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_types.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/ip_mroute.h>
-#include <netinet/if_ether.h>
-
-// Needed since <sys/param.h> refers to it...
-#define schedppq 1
-'
-
-includes_OpenBSD='
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/sysctl.h>
-#include <sys/termios.h>
-#include <sys/ttycom.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_types.h>
-#include <net/if_var.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/ip_mroute.h>
-#include <netinet/if_ether.h>
-#include <net/if_bridge.h>
-
-// We keep some constants not supported in OpenBSD 5.5 and beyond for
-// the promise of compatibility.
-#define EMUL_ENABLED		0x1
-#define EMUL_NATIVE		0x2
-#define IPV6_FAITH		0x1d
-#define IPV6_OPTIONS		0x1
-#define IPV6_RTHDR_STRICT	0x1
-#define IPV6_SOCKOPT_RESERVED1	0x3
-#define SIOCGIFGENERIC		0xc020693a
-#define SIOCSIFGENERIC		0x80206939
-#define WALTSIG			0x4
-'
-
-includes_SunOS='
-#include <limits.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/mman.h>
-#include <sys/wait.h>
-#include <sys/ioctl.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_arp.h>
-#include <net/if_types.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <termios.h>
-#include <netinet/ip.h>
-#include <netinet/ip_mroute.h>
-'
-
-
-includes='
-#include <sys/types.h>
-#include <sys/file.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/ip.h>
-#include <netinet/ip6.h>
-#include <netinet/tcp.h>
-#include <errno.h>
-#include <sys/signal.h>
-#include <signal.h>
-#include <sys/resource.h>
-#include <time.h>
-'
-ccflags="$@"
-
-# Write go tool cgo -godefs input.
-(
-	echo package unix
-	echo
-	echo '/*'
-	indirect="includes_$(uname)"
-	echo "${!indirect} $includes"
-	echo '*/'
-	echo 'import "C"'
-	echo 'import "syscall"'
-	echo
-	echo 'const ('
-
-	# The gcc command line prints all the #defines
-	# it encounters while processing the input
-	echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
-	awk '
-		$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
-
-		$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next}  # 386 registers
-		$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
-		$2 ~ /^(SCM_SRCRT)$/ {next}
-		$2 ~ /^(MAP_FAILED)$/ {next}
-		$2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc.
-
-		$2 ~ /^EXTATTR_NAMESPACE_NAMES/ ||
-		$2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next}
-
-		$2 !~ /^ETH_/ &&
-		$2 !~ /^EPROC_/ &&
-		$2 !~ /^EQUIV_/ &&
-		$2 !~ /^EXPR_/ &&
-		$2 ~ /^E[A-Z0-9_]+$/ ||
-		$2 ~ /^B[0-9_]+$/ ||
-		$2 == "BOTHER" ||
-		$2 ~ /^CI?BAUD(EX)?$/ ||
-		$2 == "IBSHIFT" ||
-		$2 ~ /^V[A-Z0-9]+$/ ||
-		$2 ~ /^CS[A-Z0-9]/ ||
-		$2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
-		$2 ~ /^IGN/ ||
-		$2 ~ /^IX(ON|ANY|OFF)$/ ||
-		$2 ~ /^IN(LCR|PCK)$/ ||
-		$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
-		$2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
-		$2 == "BRKINT" ||
-		$2 == "HUPCL" ||
-		$2 == "PENDIN" ||
-		$2 == "TOSTOP" ||
-		$2 == "XCASE" ||
-		$2 == "ALTWERASE" ||
-		$2 == "NOKERNINFO" ||
-		$2 ~ /^PAR/ ||
-		$2 ~ /^SIG[^_]/ ||
-		$2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
-		$2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
-		$2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
-		$2 ~ /^O?XTABS$/ ||
-		$2 ~ /^TC[IO](ON|OFF)$/ ||
-		$2 ~ /^IN_/ ||
-		$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
-		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
-		$2 ~ /^FALLOC_/ ||
-		$2 == "ICMPV6_FILTER" ||
-		$2 == "SOMAXCONN" ||
-		$2 == "NAME_MAX" ||
-		$2 == "IFNAMSIZ" ||
-		$2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ ||
-		$2 ~ /^SYSCTL_VERS/ ||
-		$2 ~ /^(MS|MNT|UMOUNT)_/ ||
-		$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
-		$2 ~ /^(O|F|E?FD|NAME|S|PTRACE|PT)_/ ||
-		$2 ~ /^LINUX_REBOOT_CMD_/ ||
-		$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
-		$2 !~ "NLA_TYPE_MASK" &&
-		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
-		$2 ~ /^SIOC/ ||
-		$2 ~ /^TIOC/ ||
-		$2 ~ /^TCGET/ ||
-		$2 ~ /^TCSET/ ||
-		$2 ~ /^TC(FLSH|SBRKP?|XONC)$/ ||
-		$2 !~ "RTF_BITS" &&
-		$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
-		$2 ~ /^BIOC/ ||
-		$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
-		$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|LOCKS|MEMLOCK|MSGQUEUE|NICE|NOFILE|NPROC|RSS|RTPRIO|RTTIME|SIGPENDING|STACK)|RLIM_INFINITY/ ||
-		$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
-		$2 ~ /^CLONE_[A-Z_]+/ ||
-		$2 !~ /^(BPF_TIMEVAL)$/ &&
-		$2 ~ /^(BPF|DLT)_/ ||
-		$2 ~ /^CLOCK_/ ||
-		$2 ~ /^CAN_/ ||
-		$2 ~ /^CAP_/ ||
-		$2 ~ /^ALG_/ ||
-		$2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE|IOC_(GET|SET)_ENCRYPTION)/ ||
-		$2 ~ /^GRND_/ ||
-		$2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
-		$2 ~ /^KEYCTL_/ ||
-		$2 ~ /^PERF_EVENT_IOC_/ ||
-		$2 ~ /^SECCOMP_MODE_/ ||
-		$2 ~ /^SPLICE_/ ||
-		$2 ~ /^(VM|VMADDR)_/ ||
-		$2 ~ /^(TASKSTATS|TS)_/ ||
-		$2 ~ /^GENL_/ ||
-		$2 ~ /^XATTR_(CREATE|REPLACE)/ ||
-		$2 !~ "WMESGLEN" &&
-		$2 ~ /^W[A-Z0-9]+$/ ||
-		$2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)}
-		$2 ~ /^__WCOREFLAG$/ {next}
-		$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
-
-		{next}
-	' | sort
-
-	echo ')'
-) >_const.go
-
-# Pull out the error names for later.
-errors=$(
-	echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
-	awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
-	sort
-)
-
-# Pull out the signal names for later.
-signals=$(
-	echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
-	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
-	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
-	sort
-)
-
-# Again, writing regexps to a file.
-echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
-	awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
-	sort >_error.grep
-echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
-	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
-	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
-	sort >_signal.grep
-
-echo '// mkerrors.sh' "$@"
-echo '// Code generated by the command above; see README.md. DO NOT EDIT.'
-echo
-echo "// +build ${GOARCH},${GOOS}"
-echo
-go tool cgo -godefs -- "$@" _const.go >_error.out
-cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
-echo
-echo '// Errors'
-echo 'const ('
-cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/'
-echo ')'
-
-echo
-echo '// Signals'
-echo 'const ('
-cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/'
-echo ')'
-
-# Run C program to print error and syscall strings.
-(
-	echo -E "
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <ctype.h>
-#include <string.h>
-#include <signal.h>
-
-#define nelem(x) (sizeof(x)/sizeof((x)[0]))
-
-enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
-
-int errors[] = {
-"
-	for i in $errors
-	do
-		echo -E '	'$i,
-	done
-
-	echo -E "
-};
-
-int signals[] = {
-"
-	for i in $signals
-	do
-		echo -E '	'$i,
-	done
-
-	# Use -E because on some systems bash builtin interprets \n itself.
-	echo -E '
-};
-
-static int
-intcmp(const void *a, const void *b)
-{
-	return *(int*)a - *(int*)b;
-}
-
-int
-main(void)
-{
-	int i, e;
-	char buf[1024], *p;
-
-	printf("\n\n// Error table\n");
-	printf("var errors = [...]string {\n");
-	qsort(errors, nelem(errors), sizeof errors[0], intcmp);
-	for(i=0; i<nelem(errors); i++) {
-		e = errors[i];
-		if(i > 0 && errors[i-1] == e)
-			continue;
-		strcpy(buf, strerror(e));
-		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
-		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
-			buf[0] += a - A;
-		printf("\t%d: \"%s\",\n", e, buf);
-	}
-	printf("}\n\n");
-
-	printf("\n\n// Signal table\n");
-	printf("var signals = [...]string {\n");
-	qsort(signals, nelem(signals), sizeof signals[0], intcmp);
-	for(i=0; i<nelem(signals); i++) {
-		e = signals[i];
-		if(i > 0 && signals[i-1] == e)
-			continue;
-		strcpy(buf, strsignal(e));
-		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
-		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
-			buf[0] += a - A;
-		// cut trailing : number.
-		p = strrchr(buf, ":"[0]);
-		if(p)
-			*p = '\0';
-		printf("\t%d: \"%s\",\n", e, buf);
-	}
-	printf("}\n\n");
-
-	return 0;
-}
-
-'
-) >_errors.c
-
-$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out
@@ -1,328 +0,0 @@
-#!/usr/bin/env perl
-# Copyright 2009 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.
-
-# This program reads a file containing function prototypes
-# (like syscall_darwin.go) and generates system call bodies.
-# The prototypes are marked by lines beginning with "//sys"
-# and read like func declarations if //sys is replaced by func, but:
-#	* The parameter lists must give a name for each argument.
-#	  This includes return parameters.
-#	* The parameter lists must give a type for each argument:
-#	  the (x, y, z int) shorthand is not allowed.
-#	* If the return parameter is an error number, it must be named errno.
-
-# A line beginning with //sysnb is like //sys, except that the
-# goroutine will not be suspended during the execution of the system
-# call.  This must only be used for system calls which can never
-# block, as otherwise the system call could cause all goroutines to
-# hang.
-
-use strict;
-
-my $cmdline = "mksyscall.pl " . join(' ', @ARGV);
-my $errors = 0;
-my $_32bit = "";
-my $plan9 = 0;
-my $openbsd = 0;
-my $netbsd = 0;
-my $dragonfly = 0;
-my $arm = 0; # 64-bit value should use (even, odd)-pair
-my $tags = "";  # build tags
-
-if($ARGV[0] eq "-b32") {
-	$_32bit = "big-endian";
-	shift;
-} elsif($ARGV[0] eq "-l32") {
-	$_32bit = "little-endian";
-	shift;
-}
-if($ARGV[0] eq "-plan9") {
-	$plan9 = 1;
-	shift;
-}
-if($ARGV[0] eq "-openbsd") {
-	$openbsd = 1;
-	shift;
-}
-if($ARGV[0] eq "-netbsd") {
-	$netbsd = 1;
-	shift;
-}
-if($ARGV[0] eq "-dragonfly") {
-	$dragonfly = 1;
-	shift;
-}
-if($ARGV[0] eq "-arm") {
-	$arm = 1;
-	shift;
-}
-if($ARGV[0] eq "-tags") {
-	shift;
-	$tags = $ARGV[0];
-	shift;
-}
-
-if($ARGV[0] =~ /^-/) {
-	print STDERR "usage: mksyscall.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
-	exit 1;
-}
-
-# Check that we are using the new build system if we should
-if($ENV{'GOOS'} eq "linux" && $ENV{'GOARCH'} ne "sparc64") {
-	if($ENV{'GOLANG_SYS_BUILD'} ne "docker") {
-		print STDERR "In the new build system, mksyscall should not be called directly.\n";
-		print STDERR "See README.md\n";
-		exit 1;
-	}
-}
-
-
-sub parseparamlist($) {
-	my ($list) = @_;
-	$list =~ s/^\s*//;
-	$list =~ s/\s*$//;
-	if($list eq "") {
-		return ();
-	}
-	return split(/\s*,\s*/, $list);
-}
-
-sub parseparam($) {
-	my ($p) = @_;
-	if($p !~ /^(\S*) (\S*)$/) {
-		print STDERR "$ARGV:$.: malformed parameter: $p\n";
-		$errors = 1;
-		return ("xx", "int");
-	}
-	return ($1, $2);
-}
-
-my $text = "";
-while(<>) {
-	chomp;
-	s/\s+/ /g;
-	s/^\s+//;
-	s/\s+$//;
-	my $nonblock = /^\/\/sysnb /;
-	next if !/^\/\/sys / && !$nonblock;
-
-	# Line must be of the form
-	#	func Open(path string, mode int, perm int) (fd int, errno error)
-	# Split into name, in params, out params.
-	if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*((?i)SYS_[A-Z0-9_]+))?$/) {
-		print STDERR "$ARGV:$.: malformed //sys declaration\n";
-		$errors = 1;
-		next;
-	}
-	my ($func, $in, $out, $sysname) = ($2, $3, $4, $5);
-
-	# Split argument lists on comma.
-	my @in = parseparamlist($in);
-	my @out = parseparamlist($out);
-
-	# Try in vain to keep people from editing this file.
-	# The theory is that they jump into the middle of the file
-	# without reading the header.
-	$text .= "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n";
-
-	# Go function header.
-	my $out_decl = @out ? sprintf(" (%s)", join(', ', @out)) : "";
-	$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out_decl;
-
-	# Check if err return available
-	my $errvar = "";
-	foreach my $p (@out) {
-		my ($name, $type) = parseparam($p);
-		if($type eq "error") {
-			$errvar = $name;
-			last;
-		}
-	}
-
-	# Prepare arguments to Syscall.
-	my @args = ();
-	my $n = 0;
-	foreach my $p (@in) {
-		my ($name, $type) = parseparam($p);
-		if($type =~ /^\*/) {
-			push @args, "uintptr(unsafe.Pointer($name))";
-		} elsif($type eq "string" && $errvar ne "") {
-			$text .= "\tvar _p$n *byte\n";
-			$text .= "\t_p$n, $errvar = BytePtrFromString($name)\n";
-			$text .= "\tif $errvar != nil {\n\t\treturn\n\t}\n";
-			push @args, "uintptr(unsafe.Pointer(_p$n))";
-			$n++;
-		} elsif($type eq "string") {
-			print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
-			$text .= "\tvar _p$n *byte\n";
-			$text .= "\t_p$n, _ = BytePtrFromString($name)\n";
-			push @args, "uintptr(unsafe.Pointer(_p$n))";
-			$n++;
-		} elsif($type =~ /^\[\](.*)/) {
-			# Convert slice into pointer, length.
-			# Have to be careful not to take address of &a[0] if len == 0:
-			# pass dummy pointer in that case.
-			# Used to pass nil, but some OSes or simulators reject write(fd, nil, 0).
-			$text .= "\tvar _p$n unsafe.Pointer\n";
-			$text .= "\tif len($name) > 0 {\n\t\t_p$n = unsafe.Pointer(\&${name}[0])\n\t}";
-			$text .= " else {\n\t\t_p$n = unsafe.Pointer(&_zero)\n\t}";
-			$text .= "\n";
-			push @args, "uintptr(_p$n)", "uintptr(len($name))";
-			$n++;
-		} elsif($type eq "int64" && ($openbsd || $netbsd)) {
-			push @args, "0";
-			if($_32bit eq "big-endian") {
-				push @args, "uintptr($name>>32)", "uintptr($name)";
-			} elsif($_32bit eq "little-endian") {
-				push @args, "uintptr($name)", "uintptr($name>>32)";
-			} else {
-				push @args, "uintptr($name)";
-			}
-		} elsif($type eq "int64" && $dragonfly) {
-			if ($func !~ /^extp(read|write)/i) {
-				push @args, "0";
-			}
-			if($_32bit eq "big-endian") {
-				push @args, "uintptr($name>>32)", "uintptr($name)";
-			} elsif($_32bit eq "little-endian") {
-				push @args, "uintptr($name)", "uintptr($name>>32)";
-			} else {
-				push @args, "uintptr($name)";
-			}
-		} elsif($type eq "int64" && $_32bit ne "") {
-			if(@args % 2 && $arm) {
-				# arm abi specifies 64-bit argument uses
-				# (even, odd) pair
-				push @args, "0"
-			}
-			if($_32bit eq "big-endian") {
-				push @args, "uintptr($name>>32)", "uintptr($name)";
-			} else {
-				push @args, "uintptr($name)", "uintptr($name>>32)";
-			}
-		} else {
-			push @args, "uintptr($name)";
-		}
-	}
-
-	# Determine which form to use; pad args with zeros.
-	my $asm = "Syscall";
-	if ($nonblock) {
-		$asm = "RawSyscall";
-	}
-	if(@args <= 3) {
-		while(@args < 3) {
-			push @args, "0";
-		}
-	} elsif(@args <= 6) {
-		$asm .= "6";
-		while(@args < 6) {
-			push @args, "0";
-		}
-	} elsif(@args <= 9) {
-		$asm .= "9";
-		while(@args < 9) {
-			push @args, "0";
-		}
-	} else {
-		print STDERR "$ARGV:$.: too many arguments to system call\n";
-	}
-
-	# System call number.
-	if($sysname eq "") {
-		$sysname = "SYS_$func";
-		$sysname =~ s/([a-z])([A-Z])/${1}_$2/g;	# turn FooBar into Foo_Bar
-		$sysname =~ y/a-z/A-Z/;
-	}
-
-	# Actual call.
-	my $args = join(', ', @args);
-	my $call = "$asm($sysname, $args)";
-
-	# Assign return values.
-	my $body = "";
-	my @ret = ("_", "_", "_");
-	my $do_errno = 0;
-	for(my $i=0; $i<@out; $i++) {
-		my $p = $out[$i];
-		my ($name, $type) = parseparam($p);
-		my $reg = "";
-		if($name eq "err" && !$plan9) {
-			$reg = "e1";
-			$ret[2] = $reg;
-			$do_errno = 1;
-		} elsif($name eq "err" && $plan9) {
-			$ret[0] = "r0";
-			$ret[2] = "e1";
-			next;
-		} else {
-			$reg = sprintf("r%d", $i);
-			$ret[$i] = $reg;
-		}
-		if($type eq "bool") {
-			$reg = "$reg != 0";
-		}
-		if($type eq "int64" && $_32bit ne "") {
-			# 64-bit number in r1:r0 or r0:r1.
-			if($i+2 > @out) {
-				print STDERR "$ARGV:$.: not enough registers for int64 return\n";
-			}
-			if($_32bit eq "big-endian") {
-				$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i, $i+1);
-			} else {
-				$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i+1, $i);
-			}
-			$ret[$i] = sprintf("r%d", $i);
-			$ret[$i+1] = sprintf("r%d", $i+1);
-		}
-		if($reg ne "e1" || $plan9) {
-			$body .= "\t$name = $type($reg)\n";
-		}
-	}
-	if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
-		$text .= "\t$call\n";
-	} else {
-		$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
-	}
-	$text .= $body;
-
-	if ($plan9 && $ret[2] eq "e1") {
-		$text .= "\tif int32(r0) == -1 {\n";
-		$text .= "\t\terr = e1\n";
-		$text .= "\t}\n";
-	} elsif ($do_errno) {
-		$text .= "\tif e1 != 0 {\n";
-		$text .= "\t\terr = errnoErr(e1)\n";
-		$text .= "\t}\n";
-	}
-	$text .= "\treturn\n";
-	$text .= "}\n\n";
-}
-
-chomp $text;
-chomp $text;
-
-if($errors) {
-	exit 1;
-}
-
-print <<EOF;
-// $cmdline
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build $tags
-
-package unix
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-var _ syscall.Errno
-
-$text
-EOF
-exit 0;
@@ -1,289 +0,0 @@
-#!/usr/bin/env perl
-# Copyright 2009 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.
-
-# This program reads a file containing function prototypes
-# (like syscall_solaris.go) and generates system call bodies.
-# The prototypes are marked by lines beginning with "//sys"
-# and read like func declarations if //sys is replaced by func, but:
-#	* The parameter lists must give a name for each argument.
-#	  This includes return parameters.
-#	* The parameter lists must give a type for each argument:
-#	  the (x, y, z int) shorthand is not allowed.
-#	* If the return parameter is an error number, it must be named err.
-#	* If go func name needs to be different than its libc name,
-#	* or the function is not in libc, name could be specified
-#	* at the end, after "=" sign, like
-#	  //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
-
-use strict;
-
-my $cmdline = "mksyscall_solaris.pl " . join(' ', @ARGV);
-my $errors = 0;
-my $_32bit = "";
-my $tags = "";  # build tags
-
-binmode STDOUT;
-
-if($ARGV[0] eq "-b32") {
-	$_32bit = "big-endian";
-	shift;
-} elsif($ARGV[0] eq "-l32") {
-	$_32bit = "little-endian";
-	shift;
-}
-if($ARGV[0] eq "-tags") {
-	shift;
-	$tags = $ARGV[0];
-	shift;
-}
-
-if($ARGV[0] =~ /^-/) {
-	print STDERR "usage: mksyscall_solaris.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
-	exit 1;
-}
-
-sub parseparamlist($) {
-	my ($list) = @_;
-	$list =~ s/^\s*//;
-	$list =~ s/\s*$//;
-	if($list eq "") {
-		return ();
-	}
-	return split(/\s*,\s*/, $list);
-}
-
-sub parseparam($) {
-	my ($p) = @_;
-	if($p !~ /^(\S*) (\S*)$/) {
-		print STDERR "$ARGV:$.: malformed parameter: $p\n";
-		$errors = 1;
-		return ("xx", "int");
-	}
-	return ($1, $2);
-}
-
-my $package = "";
-my $text = "";
-my $dynimports = "";
-my $linknames = "";
-my @vars = ();
-while(<>) {
-	chomp;
-	s/\s+/ /g;
-	s/^\s+//;
-	s/\s+$//;
-	$package = $1 if !$package && /^package (\S+)$/;
-	my $nonblock = /^\/\/sysnb /;
-	next if !/^\/\/sys / && !$nonblock;
-
-	# Line must be of the form
-	#	func Open(path string, mode int, perm int) (fd int, err error)
-	# Split into name, in params, out params.
-	if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$/) {
-		print STDERR "$ARGV:$.: malformed //sys declaration\n";
-		$errors = 1;
-		next;
-	}
-	my ($nb, $func, $in, $out, $modname, $sysname) = ($1, $2, $3, $4, $5, $6);
-
-	# Split argument lists on comma.
-	my @in = parseparamlist($in);
-	my @out = parseparamlist($out);
-
-	# So file name.
-	if($modname eq "") {
-		$modname = "libc";
-	}
-
-	# System call name.
-	if($sysname eq "") {
-		$sysname = "$func";
-	}
-
-	# System call pointer variable name.
-	my $sysvarname = "proc$sysname";
-
-	my $strconvfunc = "BytePtrFromString";
-	my $strconvtype = "*byte";
-
-	$sysname =~ y/A-Z/a-z/; # All libc functions are lowercase.
-
-	# Runtime import of function to allow cross-platform builds.
-	$dynimports .= "//go:cgo_import_dynamic libc_${sysname} ${sysname} \"$modname.so\"\n";
-	# Link symbol to proc address variable.
-	$linknames .= "//go:linkname ${sysvarname} libc_${sysname}\n";
-	# Library proc address variable.
-	push @vars, $sysvarname;
-
-	# Go function header.
-	$out = join(', ', @out);
-	if($out ne "") {
-		$out = " ($out)";
-	}
-	if($text ne "") {
-		$text .= "\n"
-	}
-	$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out;
-
-	# Check if err return available
-	my $errvar = "";
-	foreach my $p (@out) {
-		my ($name, $type) = parseparam($p);
-		if($type eq "error") {
-			$errvar = $name;
-			last;
-		}
-	}
-
-	# Prepare arguments to Syscall.
-	my @args = ();
-	my $n = 0;
-	foreach my $p (@in) {
-		my ($name, $type) = parseparam($p);
-		if($type =~ /^\*/) {
-			push @args, "uintptr(unsafe.Pointer($name))";
-		} elsif($type eq "string" && $errvar ne "") {
-			$text .= "\tvar _p$n $strconvtype\n";
-			$text .= "\t_p$n, $errvar = $strconvfunc($name)\n";
-			$text .= "\tif $errvar != nil {\n\t\treturn\n\t}\n";
-			push @args, "uintptr(unsafe.Pointer(_p$n))";
-			$n++;
-		} elsif($type eq "string") {
-			print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
-			$text .= "\tvar _p$n $strconvtype\n";
-			$text .= "\t_p$n, _ = $strconvfunc($name)\n";
-			push @args, "uintptr(unsafe.Pointer(_p$n))";
-			$n++;
-		} elsif($type =~ /^\[\](.*)/) {
-			# Convert slice into pointer, length.
-			# Have to be careful not to take address of &a[0] if len == 0:
-			# pass nil in that case.
-			$text .= "\tvar _p$n *$1\n";
-			$text .= "\tif len($name) > 0 {\n\t\t_p$n = \&$name\[0]\n\t}\n";
-			push @args, "uintptr(unsafe.Pointer(_p$n))", "uintptr(len($name))";
-			$n++;
-		} elsif($type eq "int64" && $_32bit ne "") {
-			if($_32bit eq "big-endian") {
-				push @args, "uintptr($name >> 32)", "uintptr($name)";
-			} else {
-				push @args, "uintptr($name)", "uintptr($name >> 32)";
-			}
-		} elsif($type eq "bool") {
- 			$text .= "\tvar _p$n uint32\n";
-			$text .= "\tif $name {\n\t\t_p$n = 1\n\t} else {\n\t\t_p$n = 0\n\t}\n";
-			push @args, "uintptr(_p$n)";
-			$n++;
-		} else {
-			push @args, "uintptr($name)";
-		}
-	}
-	my $nargs = @args;
-
-	# Determine which form to use; pad args with zeros.
-	my $asm = "sysvicall6";
-	if ($nonblock) {
-		$asm = "rawSysvicall6";
-	}
-	if(@args <= 6) {
-		while(@args < 6) {
-			push @args, "0";
-		}
-	} else {
-		print STDERR "$ARGV:$.: too many arguments to system call\n";
-	}
-
-	# Actual call.
-	my $args = join(', ', @args);
-	my $call = "$asm(uintptr(unsafe.Pointer(&$sysvarname)), $nargs, $args)";
-
-	# Assign return values.
-	my $body = "";
-	my $failexpr = "";
-	my @ret = ("_", "_", "_");
-	my @pout= ();
-	my $do_errno = 0;
-	for(my $i=0; $i<@out; $i++) {
-		my $p = $out[$i];
-		my ($name, $type) = parseparam($p);
-		my $reg = "";
-		if($name eq "err") {
-			$reg = "e1";
-			$ret[2] = $reg;
-			$do_errno = 1;
-		} else {
-			$reg = sprintf("r%d", $i);
-			$ret[$i] = $reg;
-		}
-		if($type eq "bool") {
-			$reg = "$reg != 0";
-		}
-		if($type eq "int64" && $_32bit ne "") {
-			# 64-bit number in r1:r0 or r0:r1.
-			if($i+2 > @out) {
-				print STDERR "$ARGV:$.: not enough registers for int64 return\n";
-			}
-			if($_32bit eq "big-endian") {
-				$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i, $i+1);
-			} else {
-				$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i+1, $i);
-			}
-			$ret[$i] = sprintf("r%d", $i);
-			$ret[$i+1] = sprintf("r%d", $i+1);
-		}
-		if($reg ne "e1") {
-			$body .= "\t$name = $type($reg)\n";
-		}
-	}
-	if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
-		$text .= "\t$call\n";
-	} else {
-		$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
-	}
-	$text .= $body;
-
-	if ($do_errno) {
-		$text .= "\tif e1 != 0 {\n";
-		$text .= "\t\terr = e1\n";
-		$text .= "\t}\n";
-	}
-	$text .= "\treturn\n";
-	$text .= "}\n";
-}
-
-if($errors) {
-	exit 1;
-}
-
-print <<EOF;
-// $cmdline
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build $tags
-
-package $package
-
-import (
-	"syscall"
-	"unsafe"
-)
-EOF
-
-print "import \"golang.org/x/sys/unix\"\n" if $package ne "unix";
-
-my $vardecls = "\t" . join(",\n\t", @vars);
-$vardecls .= " syscallFunc";
-
-chomp($_=<<EOF);
-
-$dynimports
-$linknames
-var (
-$vardecls
-)
-
-$text
-EOF
-print $_;
-exit 0;
@@ -1,264 +0,0 @@
-#!/usr/bin/env perl
-
-# Copyright 2011 The Go Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-
-#
-# Parse the header files for OpenBSD and generate a Go usable sysctl MIB.
-#
-# Build a MIB with each entry being an array containing the level, type and
-# a hash that will contain additional entries if the current entry is a node.
-# We then walk this MIB and create a flattened sysctl name to OID hash.
-#
-
-use strict;
-
-if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
-	print STDERR "GOARCH or GOOS not defined in environment\n";
-	exit 1;
-}
-
-my $debug = 0;
-my %ctls = ();
-
-my @headers = qw (
-	sys/sysctl.h
-	sys/socket.h
-	sys/tty.h
-	sys/malloc.h
-	sys/mount.h
-	sys/namei.h
-	sys/sem.h
-	sys/shm.h
-	sys/vmmeter.h
-	uvm/uvm_param.h
-	uvm/uvm_swap_encrypt.h
-	ddb/db_var.h
-	net/if.h
-	net/if_pfsync.h
-	net/pipex.h
-	netinet/in.h
-	netinet/icmp_var.h
-	netinet/igmp_var.h
-	netinet/ip_ah.h
-	netinet/ip_carp.h
-	netinet/ip_divert.h
-	netinet/ip_esp.h
-	netinet/ip_ether.h
-	netinet/ip_gre.h
-	netinet/ip_ipcomp.h
-	netinet/ip_ipip.h
-	netinet/pim_var.h
-	netinet/tcp_var.h
-	netinet/udp_var.h
-	netinet6/in6.h
-	netinet6/ip6_divert.h
-	netinet6/pim6_var.h
-	netinet/icmp6.h
-	netmpls/mpls.h
-);
-
-my @ctls = qw (
-	kern
-	vm
-	fs
-	net
-	#debug				# Special handling required
-	hw
-	#machdep			# Arch specific
-	user
-	ddb
-	#vfs				# Special handling required
-	fs.posix
-	kern.forkstat
-	kern.intrcnt
-	kern.malloc
-	kern.nchstats
-	kern.seminfo
-	kern.shminfo
-	kern.timecounter
-	kern.tty
-	kern.watchdog
-	net.bpf
-	net.ifq
-	net.inet
-	net.inet.ah
-	net.inet.carp
-	net.inet.divert
-	net.inet.esp
-	net.inet.etherip
-	net.inet.gre
-	net.inet.icmp
-	net.inet.igmp
-	net.inet.ip
-	net.inet.ip.ifq
-	net.inet.ipcomp
-	net.inet.ipip
-	net.inet.mobileip
-	net.inet.pfsync
-	net.inet.pim
-	net.inet.tcp
-	net.inet.udp
-	net.inet6
-	net.inet6.divert
-	net.inet6.ip6
-	net.inet6.icmp6
-	net.inet6.pim6
-	net.inet6.tcp6
-	net.inet6.udp6
-	net.mpls
-	net.mpls.ifq
-	net.key
-	net.pflow
-	net.pfsync
-	net.pipex
-	net.rt
-	vm.swapencrypt
-	#vfsgenctl			# Special handling required
-);
-
-# Node name "fixups"
-my %ctl_map = (
-	"ipproto" => "net.inet",
-	"net.inet.ipproto" => "net.inet",
-	"net.inet6.ipv6proto" => "net.inet6",
-	"net.inet6.ipv6" => "net.inet6.ip6",
-	"net.inet.icmpv6" => "net.inet6.icmp6",
-	"net.inet6.divert6" => "net.inet6.divert",
-	"net.inet6.tcp6" => "net.inet.tcp",
-	"net.inet6.udp6" => "net.inet.udp",
-	"mpls" => "net.mpls",
-	"swpenc" => "vm.swapencrypt"
-);
-
-# Node mappings
-my %node_map = (
-	"net.inet.ip.ifq" => "net.ifq",
-	"net.inet.pfsync" => "net.pfsync",
-	"net.mpls.ifq" => "net.ifq"
-);
-
-my $ctlname;
-my %mib = ();
-my %sysctl = ();
-my $node;
-
-sub debug() {
-	print STDERR "$_[0]\n" if $debug;
-}
-
-# Walk the MIB and build a sysctl name to OID mapping.
-sub build_sysctl() {
-	my ($node, $name, $oid) = @_;
-	my %node = %{$node};
-	my @oid = @{$oid};
-
-	foreach my $key (sort keys %node) {
-		my @node = @{$node{$key}};
-		my $nodename = $name.($name ne '' ? '.' : '').$key;
-		my @nodeoid = (@oid, $node[0]);
-		if ($node[1] eq 'CTLTYPE_NODE') {
-			if (exists $node_map{$nodename}) {
-				$node = \%mib;
-				$ctlname = $node_map{$nodename};
-				foreach my $part (split /\./, $ctlname) {
-					$node = \%{@{$$node{$part}}[2]};
-				}
-			} else {
-				$node = $node[2];
-			}
-			&build_sysctl($node, $nodename, \@nodeoid);
-		} elsif ($node[1] ne '') {
-			$sysctl{$nodename} = \@nodeoid;
-		}
-	}
-}
-
-foreach my $ctl (@ctls) {
-	$ctls{$ctl} = $ctl;
-}
-
-# Build MIB
-foreach my $header (@headers) {
-	&debug("Processing $header...");
-	open HEADER, "/usr/include/$header" ||
-	    print STDERR "Failed to open $header\n";
-	while (<HEADER>) {
-		if ($_ =~ /^#define\s+(CTL_NAMES)\s+{/ ||
-		    $_ =~ /^#define\s+(CTL_(.*)_NAMES)\s+{/ ||
-		    $_ =~ /^#define\s+((.*)CTL_NAMES)\s+{/) {
-			if ($1 eq 'CTL_NAMES') {
-				# Top level.
-				$node = \%mib;
-			} else {
-				# Node.
-				my $nodename = lc($2);
-				if ($header =~ /^netinet\//) {
-					$ctlname = "net.inet.$nodename";
-				} elsif ($header =~ /^netinet6\//) {
-					$ctlname = "net.inet6.$nodename";
-				} elsif ($header =~ /^net\//) {
-					$ctlname = "net.$nodename";
-				} else {
-					$ctlname = "$nodename";
-					$ctlname =~ s/^(fs|net|kern)_/$1\./;
-				}
-				if (exists $ctl_map{$ctlname}) {
-					$ctlname = $ctl_map{$ctlname};
-				}
-				if (not exists $ctls{$ctlname}) {
-					&debug("Ignoring $ctlname...");
-					next;
-				}
-
-				# Walk down from the top of the MIB.
-				$node = \%mib;
-				foreach my $part (split /\./, $ctlname) {
-					if (not exists $$node{$part}) {
-						&debug("Missing node $part");
-						$$node{$part} = [ 0, '', {} ];
-					}
-					$node = \%{@{$$node{$part}}[2]};
-				}
-			}
-
-			# Populate current node with entries.
-			my $i = -1;
-			while (defined($_) && $_ !~ /^}/) {
-				$_ = <HEADER>;
-				$i++ if $_ =~ /{.*}/;
-				next if $_ !~ /{\s+"(\w+)",\s+(CTLTYPE_[A-Z]+)\s+}/;
-				$$node{$1} = [ $i, $2, {} ];
-			}
-		}
-	}
-	close HEADER;
-}
-
-&build_sysctl(\%mib, "", []);
-
-print <<EOF;
-// mksysctl_openbsd.pl
-// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
-
-// +build $ENV{'GOARCH'},$ENV{'GOOS'}
-
-package unix;
-
-type mibentry struct {
-	ctlname string
-	ctloid []_C_int
-}
-
-var sysctlMib = []mibentry {
-EOF
-
-foreach my $name (sort keys %sysctl) {
-	my @oid = @{$sysctl{$name}};
-	print "\t{ \"$name\", []_C_int{ ", join(', ', @oid), " } }, \n";
-}
-
-print <<EOF;
-}
-EOF
@@ -1,39 +0,0 @@
-#!/usr/bin/env perl
-# Copyright 2009 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.
-#
-# Generate system call table for Darwin from sys/syscall.h
-
-use strict;
-
-if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
-	print STDERR "GOARCH or GOOS not defined in environment\n";
-	exit 1;
-}
-
-my $command = "mksysnum_darwin.pl " . join(' ', @ARGV);
-
-print <<EOF;
-// $command
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build $ENV{'GOARCH'},$ENV{'GOOS'}
-
-package unix
-
-const (
-EOF
-
-while(<>){
-	if(/^#define\s+SYS_(\w+)\s+([0-9]+)/){
-		my $name = $1;
-		my $num = $2;
-		$name =~ y/a-z/A-Z/;
-		print "	SYS_$name = $num;"
-	}
-}
-
-print <<EOF;
-)
-EOF
@@ -1,50 +0,0 @@
-#!/usr/bin/env perl
-# Copyright 2009 The Go Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-#
-# Generate system call table for DragonFly from master list
-# (for example, /usr/src/sys/kern/syscalls.master).
-
-use strict;
-
-if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
-	print STDERR "GOARCH or GOOS not defined in environment\n";
-	exit 1;
-}
-
-my $command = "mksysnum_dragonfly.pl " . join(' ', @ARGV);
-
-print <<EOF;
-// $command
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build $ENV{'GOARCH'},$ENV{'GOOS'}
-
-package unix
-
-const (
-EOF
-
-while(<>){
-	if(/^([0-9]+)\s+STD\s+({ \S+\s+(\w+).*)$/){
-		my $num = $1;
-		my $proto = $2;
-		my $name = "SYS_$3";
-		$name =~ y/a-z/A-Z/;
-
-		# There are multiple entries for enosys and nosys, so comment them out.
-		if($name =~ /^SYS_E?NOSYS$/){
-			$name = "// $name";
-		}
-		if($name eq 'SYS_SYS_EXIT'){
-			$name = 'SYS_EXIT';
-		}
-
-		print "	$name = $num;  // $proto\n";
-	}
-}
-
-print <<EOF;
-)
-EOF
@@ -1,50 +0,0 @@
-#!/usr/bin/env perl
-# Copyright 2009 The Go Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-#
-# Generate system call table for FreeBSD from master list
-# (for example, /usr/src/sys/kern/syscalls.master).
-
-use strict;
-
-if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
-	print STDERR "GOARCH or GOOS not defined in environment\n";
-	exit 1;
-}
-
-my $command = "mksysnum_freebsd.pl " . join(' ', @ARGV);
-
-print <<EOF;
-// $command
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build $ENV{'GOARCH'},$ENV{'GOOS'}
-
-package unix
-
-const (
-EOF
-
-while(<>){
-	if(/^([0-9]+)\s+\S+\s+STD\s+({ \S+\s+(\w+).*)$/){
-		my $num = $1;
-		my $proto = $2;
-		my $name = "SYS_$3";
-		$name =~ y/a-z/A-Z/;
-
-		# There are multiple entries for enosys and nosys, so comment them out.
-		if($name =~ /^SYS_E?NOSYS$/){
-			$name = "// $name";
-		}
-		if($name eq 'SYS_SYS_EXIT'){
-			$name = 'SYS_EXIT';
-		}
-
-		print "	$name = $num;  // $proto\n";
-	}
-}
-
-print <<EOF;
-)
-EOF
@@ -1,58 +0,0 @@
-#!/usr/bin/env perl
-# Copyright 2009 The Go Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-#
-# Generate system call table for OpenBSD from master list
-# (for example, /usr/src/sys/kern/syscalls.master).
-
-use strict;
-
-if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
-	print STDERR "GOARCH or GOOS not defined in environment\n";
-	exit 1;
-}
-
-my $command = "mksysnum_netbsd.pl " . join(' ', @ARGV);
-
-print <<EOF;
-// $command
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build $ENV{'GOARCH'},$ENV{'GOOS'}
-
-package unix
-
-const (
-EOF
-
-my $line = '';
-while(<>){
-	if($line =~ /^(.*)\\$/) {
-		# Handle continuation
-		$line = $1;
-		$_ =~ s/^\s+//;
-		$line .= $_;
-	} else {
-		# New line
-		$line = $_;
-	}
-	next if $line =~ /\\$/;
-	if($line =~ /^([0-9]+)\s+((STD)|(NOERR))\s+(RUMP\s+)?({\s+\S+\s*\*?\s*\|(\S+)\|(\S*)\|(\w+).*\s+})(\s+(\S+))?$/) {
-		my $num = $1;
-		my $proto = $6;
-		my $compat = $8;
-		my $name = "$7_$9";
-
-		$name = "$7_$11" if $11 ne '';
-		$name =~ y/a-z/A-Z/;
-
-		if($compat eq '' || $compat eq '13' || $compat eq '30' || $compat eq '50') {
-			print "	$name = $num;  // $proto\n";
-		}
-	}
-}
-
-print <<EOF;
-)
-EOF
@@ -1,50 +0,0 @@
-#!/usr/bin/env perl
-# Copyright 2009 The Go Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-#
-# Generate system call table for OpenBSD from master list
-# (for example, /usr/src/sys/kern/syscalls.master).
-
-use strict;
-
-if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
-	print STDERR "GOARCH or GOOS not defined in environment\n";
-	exit 1;
-}
-
-my $command = "mksysnum_openbsd.pl " . join(' ', @ARGV);
-
-print <<EOF;
-// $command
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build $ENV{'GOARCH'},$ENV{'GOOS'}
-
-package unix
-
-const (
-EOF
-
-while(<>){
-	if(/^([0-9]+)\s+STD\s+(NOLOCK\s+)?({ \S+\s+\*?(\w+).*)$/){
-		my $num = $1;
-		my $proto = $3;
-		my $name = $4;
-		$name =~ y/a-z/A-Z/;
-
-		# There are multiple entries for enosys and nosys, so comment them out.
-		if($name =~ /^SYS_E?NOSYS$/){
-			$name = "// $name";
-		}
-		if($name eq 'SYS_SYS_EXIT'){
-			$name = 'SYS_EXIT';
-		}
-
-		print "	$name = $num;  // $proto\n";
-	}
-}
-
-print <<EOF;
-)
-EOF
@@ -1,35 +0,0 @@
-// Copyright 2014 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.
-
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
-
-package unix_test
-
-import (
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-func TestMmap(t *testing.T) {
-	b, err := unix.Mmap(-1, 0, unix.Getpagesize(), unix.PROT_NONE, unix.MAP_ANON|unix.MAP_PRIVATE)
-	if err != nil {
-		t.Fatalf("Mmap: %v", err)
-	}
-	if err := unix.Mprotect(b, unix.PROT_WRITE); err != nil {
-		t.Fatalf("Mprotect: %v", err)
-	}
-
-	b[0] = 42
-
-	if err := unix.Msync(b, unix.MS_SYNC); err != nil {
-		t.Fatalf("Msync: %v", err)
-	}
-	if err := unix.Madvise(b, unix.MADV_DONTNEED); err != nil {
-		t.Fatalf("Madvise: %v", err)
-	}
-	if err := unix.Munmap(b); err != nil {
-		t.Fatalf("Munmap: %v", err)
-	}
-}
@@ -1,113 +0,0 @@
-// Copyright 2016 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.
-
-// +build openbsd
-
-// This, on the face of it, bizarre testing mechanism is necessary because
-// the only reliable way to gauge whether or not a pledge(2) call has succeeded
-// is that the program has been killed as a result of breaking its pledge.
-
-package unix_test
-
-import (
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-type testProc struct {
-	fn      func()       // should always exit instead of returning
-	cleanup func() error // for instance, delete coredumps from testing pledge
-	success bool         // whether zero-exit means success or failure
-}
-
-var (
-	testProcs = map[string]testProc{}
-	procName  = ""
-)
-
-const (
-	optName = "sys-unix-internal-procname"
-)
-
-func init() {
-	flag.StringVar(&procName, optName, "", "internal use only")
-}
-
-// testCmd generates a proper command that, when executed, runs the test
-// corresponding to the given key.
-func testCmd(procName string) (*exec.Cmd, error) {
-	exe, err := filepath.Abs(os.Args[0])
-	if err != nil {
-		return nil, err
-	}
-	cmd := exec.Command(exe, "-"+optName+"="+procName)
-	cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
-	return cmd, nil
-}
-
-// ExitsCorrectly is a comprehensive, one-line-of-use wrapper for testing
-// a testProc with a key.
-func ExitsCorrectly(procName string, t *testing.T) {
-	s := testProcs[procName]
-	c, err := testCmd(procName)
-	defer func() {
-		if s.cleanup() != nil {
-			t.Fatalf("Failed to run cleanup for %s", procName)
-		}
-	}()
-	if err != nil {
-		t.Fatalf("Failed to construct command for %s", procName)
-	}
-	if (c.Run() == nil) != s.success {
-		result := "succeed"
-		if !s.success {
-			result = "fail"
-		}
-		t.Fatalf("Process did not %s when it was supposed to", result)
-	}
-}
-
-func TestMain(m *testing.M) {
-	flag.Parse()
-	if procName != "" {
-		testProcs[procName].fn()
-	}
-	os.Exit(m.Run())
-}
-
-// For example, add a test for pledge.
-func init() {
-	testProcs["pledge"] = testProc{
-		func() {
-			fmt.Println(unix.Pledge("", nil))
-			os.Exit(0)
-		},
-		func() error {
-			files, err := ioutil.ReadDir(".")
-			if err != nil {
-				return err
-			}
-			for _, file := range files {
-				if filepath.Ext(file.Name()) == ".core" {
-					if err := os.Remove(file.Name()); err != nil {
-						return err
-					}
-				}
-			}
-			return nil
-		},
-		false,
-	}
-}
-
-func TestPledge(t *testing.T) {
-	ExitsCorrectly("pledge", t)
-}
@@ -1,62 +0,0 @@
-// Copyright 2014 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.
-
-// +build darwin dragonfly freebsd openbsd
-
-package unix_test
-
-import (
-	"os/exec"
-	"runtime"
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-const MNT_WAIT = 1
-const MNT_NOWAIT = 2
-
-func TestGetfsstat(t *testing.T) {
-	const flags = MNT_NOWAIT // see golang.org/issue/16937
-	n, err := unix.Getfsstat(nil, flags)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	data := make([]unix.Statfs_t, n)
-	n2, err := unix.Getfsstat(data, flags)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if n != n2 {
-		t.Errorf("Getfsstat(nil) = %d, but subsequent Getfsstat(slice) = %d", n, n2)
-	}
-	for i, stat := range data {
-		if stat == (unix.Statfs_t{}) {
-			t.Errorf("index %v is an empty Statfs_t struct", i)
-		}
-	}
-	if t.Failed() {
-		for i, stat := range data[:n2] {
-			t.Logf("data[%v] = %+v", i, stat)
-		}
-		mount, err := exec.Command("mount").CombinedOutput()
-		if err != nil {
-			t.Logf("mount: %v\n%s", err, mount)
-		} else {
-			t.Logf("mount: %s", mount)
-		}
-	}
-}
-
-func TestSysctlRaw(t *testing.T) {
-	if runtime.GOOS == "openbsd" {
-		t.Skip("kern.proc.pid does not exist on OpenBSD")
-	}
-
-	_, err := unix.SysctlRaw("kern.proc.pid", unix.Getpid())
-	if err != nil {
-		t.Fatal(err)
-	}
-}
@@ -1,297 +0,0 @@
-// Copyright 2014 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.
-
-// +build freebsd
-
-package unix_test
-
-import (
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"os/exec"
-	"path"
-	"path/filepath"
-	"runtime"
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-func TestSysctlUint64(t *testing.T) {
-	_, err := unix.SysctlUint64("vm.swap_total")
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-// FIXME: Infrastructure for launching tests in subprocesses stolen from openbsd_test.go - refactor?
-// testCmd generates a proper command that, when executed, runs the test
-// corresponding to the given key.
-
-type testProc struct {
-	fn      func()                    // should always exit instead of returning
-	arg     func(t *testing.T) string // generate argument for test
-	cleanup func(arg string) error    // for instance, delete coredumps from testing pledge
-	success bool                      // whether zero-exit means success or failure
-}
-
-var (
-	testProcs = map[string]testProc{}
-	procName  = ""
-	procArg   = ""
-)
-
-const (
-	optName = "sys-unix-internal-procname"
-	optArg  = "sys-unix-internal-arg"
-)
-
-func init() {
-	flag.StringVar(&procName, optName, "", "internal use only")
-	flag.StringVar(&procArg, optArg, "", "internal use only")
-
-}
-
-func testCmd(procName string, procArg string) (*exec.Cmd, error) {
-	exe, err := filepath.Abs(os.Args[0])
-	if err != nil {
-		return nil, err
-	}
-	cmd := exec.Command(exe, "-"+optName+"="+procName, "-"+optArg+"="+procArg)
-	cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
-	return cmd, nil
-}
-
-// ExitsCorrectly is a comprehensive, one-line-of-use wrapper for testing
-// a testProc with a key.
-func ExitsCorrectly(t *testing.T, procName string) {
-	s := testProcs[procName]
-	arg := "-"
-	if s.arg != nil {
-		arg = s.arg(t)
-	}
-	c, err := testCmd(procName, arg)
-	defer func(arg string) {
-		if err := s.cleanup(arg); err != nil {
-			t.Fatalf("Failed to run cleanup for %s %s %#v", procName, err, err)
-		}
-	}(arg)
-	if err != nil {
-		t.Fatalf("Failed to construct command for %s", procName)
-	}
-	if (c.Run() == nil) != s.success {
-		result := "succeed"
-		if !s.success {
-			result = "fail"
-		}
-		t.Fatalf("Process did not %s when it was supposed to", result)
-	}
-}
-
-func TestMain(m *testing.M) {
-	flag.Parse()
-	if procName != "" {
-		t := testProcs[procName]
-		t.fn()
-		os.Stderr.WriteString("test function did not exit\n")
-		if t.success {
-			os.Exit(1)
-		} else {
-			os.Exit(0)
-		}
-	}
-	os.Exit(m.Run())
-}
-
-// end of infrastructure
-
-const testfile = "gocapmodetest"
-const testfile2 = testfile + "2"
-
-func CapEnterTest() {
-	_, err := os.OpenFile(path.Join(procArg, testfile), os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
-	if err != nil {
-		panic(fmt.Sprintf("OpenFile: %s", err))
-	}
-
-	err = unix.CapEnter()
-	if err != nil {
-		panic(fmt.Sprintf("CapEnter: %s", err))
-	}
-
-	_, err = os.OpenFile(path.Join(procArg, testfile2), os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
-	if err == nil {
-		panic("OpenFile works!")
-	}
-	if err.(*os.PathError).Err != unix.ECAPMODE {
-		panic(fmt.Sprintf("OpenFile failed wrong: %s %#v", err, err))
-	}
-	os.Exit(0)
-}
-
-func makeTempDir(t *testing.T) string {
-	d, err := ioutil.TempDir("", "go_openat_test")
-	if err != nil {
-		t.Fatalf("TempDir failed: %s", err)
-	}
-	return d
-}
-
-func removeTempDir(arg string) error {
-	err := os.RemoveAll(arg)
-	if err != nil && err.(*os.PathError).Err == unix.ENOENT {
-		return nil
-	}
-	return err
-}
-
-func init() {
-	testProcs["cap_enter"] = testProc{
-		CapEnterTest,
-		makeTempDir,
-		removeTempDir,
-		true,
-	}
-}
-
-func TestCapEnter(t *testing.T) {
-	if runtime.GOARCH != "amd64" {
-		t.Skipf("skipping test on %s", runtime.GOARCH)
-	}
-	ExitsCorrectly(t, "cap_enter")
-}
-
-func OpenatTest() {
-	f, err := os.Open(procArg)
-	if err != nil {
-		panic(err)
-	}
-
-	err = unix.CapEnter()
-	if err != nil {
-		panic(fmt.Sprintf("CapEnter: %s", err))
-	}
-
-	fxx, err := unix.Openat(int(f.Fd()), "xx", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
-	if err != nil {
-		panic(err)
-	}
-	unix.Close(fxx)
-
-	// The right to open BASE/xx is not ambient
-	_, err = os.OpenFile(procArg+"/xx", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
-	if err == nil {
-		panic("OpenFile succeeded")
-	}
-	if err.(*os.PathError).Err != unix.ECAPMODE {
-		panic(fmt.Sprintf("OpenFile failed wrong: %s %#v", err, err))
-	}
-
-	// Can't make a new directory either
-	err = os.Mkdir(procArg+"2", 0777)
-	if err == nil {
-		panic("MKdir succeeded")
-	}
-	if err.(*os.PathError).Err != unix.ECAPMODE {
-		panic(fmt.Sprintf("Mkdir failed wrong: %s %#v", err, err))
-	}
-
-	// Remove all caps except read and lookup.
-	r, err := unix.CapRightsInit([]uint64{unix.CAP_READ, unix.CAP_LOOKUP})
-	if err != nil {
-		panic(fmt.Sprintf("CapRightsInit failed: %s %#v", err, err))
-	}
-	err = unix.CapRightsLimit(f.Fd(), r)
-	if err != nil {
-		panic(fmt.Sprintf("CapRightsLimit failed: %s %#v", err, err))
-	}
-
-	// Check we can get the rights back again
-	r, err = unix.CapRightsGet(f.Fd())
-	if err != nil {
-		panic(fmt.Sprintf("CapRightsGet failed: %s %#v", err, err))
-	}
-	b, err := unix.CapRightsIsSet(r, []uint64{unix.CAP_READ, unix.CAP_LOOKUP})
-	if err != nil {
-		panic(fmt.Sprintf("CapRightsIsSet failed: %s %#v", err, err))
-	}
-	if !b {
-		panic(fmt.Sprintf("Unexpected rights"))
-	}
-	b, err = unix.CapRightsIsSet(r, []uint64{unix.CAP_READ, unix.CAP_LOOKUP, unix.CAP_WRITE})
-	if err != nil {
-		panic(fmt.Sprintf("CapRightsIsSet failed: %s %#v", err, err))
-	}
-	if b {
-		panic(fmt.Sprintf("Unexpected rights (2)"))
-	}
-
-	// Can no longer create a file
-	_, err = unix.Openat(int(f.Fd()), "xx2", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
-	if err == nil {
-		panic("Openat succeeded")
-	}
-	if err != unix.ENOTCAPABLE {
-		panic(fmt.Sprintf("OpenFileAt failed wrong: %s %#v", err, err))
-	}
-
-	// But can read an existing one
-	_, err = unix.Openat(int(f.Fd()), "xx", os.O_RDONLY, 0666)
-	if err != nil {
-		panic(fmt.Sprintf("Openat failed: %s %#v", err, err))
-	}
-
-	os.Exit(0)
-}
-
-func init() {
-	testProcs["openat"] = testProc{
-		OpenatTest,
-		makeTempDir,
-		removeTempDir,
-		true,
-	}
-}
-
-func TestOpenat(t *testing.T) {
-	if runtime.GOARCH != "amd64" {
-		t.Skipf("skipping test on %s", runtime.GOARCH)
-	}
-	ExitsCorrectly(t, "openat")
-}
-
-func TestCapRightsSetAndClear(t *testing.T) {
-	r, err := unix.CapRightsInit([]uint64{unix.CAP_READ, unix.CAP_WRITE, unix.CAP_PDWAIT})
-	if err != nil {
-		t.Fatalf("CapRightsInit failed: %s", err)
-	}
-
-	err = unix.CapRightsSet(r, []uint64{unix.CAP_EVENT, unix.CAP_LISTEN})
-	if err != nil {
-		t.Fatalf("CapRightsSet failed: %s", err)
-	}
-
-	b, err := unix.CapRightsIsSet(r, []uint64{unix.CAP_READ, unix.CAP_WRITE, unix.CAP_PDWAIT, unix.CAP_EVENT, unix.CAP_LISTEN})
-	if err != nil {
-		t.Fatalf("CapRightsIsSet failed: %s", err)
-	}
-	if !b {
-		t.Fatalf("Wrong rights set")
-	}
-
-	err = unix.CapRightsClear(r, []uint64{unix.CAP_READ, unix.CAP_PDWAIT})
-	if err != nil {
-		t.Fatalf("CapRightsClear failed: %s", err)
-	}
-
-	b, err = unix.CapRightsIsSet(r, []uint64{unix.CAP_WRITE, unix.CAP_EVENT, unix.CAP_LISTEN})
-	if err != nil {
-		t.Fatalf("CapRightsIsSet failed: %s", err)
-	}
-	if !b {
-		t.Fatalf("Wrong rights set")
-	}
-}
@@ -1,227 +0,0 @@
-// Copyright 2016 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.
-
-// +build linux
-
-package unix_test
-
-import (
-	"io/ioutil"
-	"os"
-	"testing"
-	"time"
-
-	"golang.org/x/sys/unix"
-)
-
-func TestFchmodat(t *testing.T) {
-	defer chtmpdir(t)()
-
-	touch(t, "file1")
-	os.Symlink("file1", "symlink1")
-
-	err := unix.Fchmodat(unix.AT_FDCWD, "symlink1", 0444, 0)
-	if err != nil {
-		t.Fatalf("Fchmodat: unexpected error: %v", err)
-	}
-
-	fi, err := os.Stat("file1")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if fi.Mode() != 0444 {
-		t.Errorf("Fchmodat: failed to change mode: expected %v, got %v", 0444, fi.Mode())
-	}
-
-	err = unix.Fchmodat(unix.AT_FDCWD, "symlink1", 0444, unix.AT_SYMLINK_NOFOLLOW)
-	if err != unix.EOPNOTSUPP {
-		t.Fatalf("Fchmodat: unexpected error: %v, expected EOPNOTSUPP", err)
-	}
-}
-
-func TestIoctlGetInt(t *testing.T) {
-	f, err := os.Open("/dev/random")
-	if err != nil {
-		t.Fatalf("failed to open device: %v", err)
-	}
-	defer f.Close()
-
-	v, err := unix.IoctlGetInt(int(f.Fd()), unix.RNDGETENTCNT)
-	if err != nil {
-		t.Fatalf("failed to perform ioctl: %v", err)
-	}
-
-	t.Logf("%d bits of entropy available", v)
-}
-
-func TestPoll(t *testing.T) {
-	f, cleanup := mktmpfifo(t)
-	defer cleanup()
-
-	const timeout = 100
-
-	ok := make(chan bool, 1)
-	go func() {
-		select {
-		case <-time.After(10 * timeout * time.Millisecond):
-			t.Errorf("Poll: failed to timeout after %d milliseconds", 10*timeout)
-		case <-ok:
-		}
-	}()
-
-	fds := []unix.PollFd{{Fd: int32(f.Fd()), Events: unix.POLLIN}}
-	n, err := unix.Poll(fds, timeout)
-	ok <- true
-	if err != nil {
-		t.Errorf("Poll: unexpected error: %v", err)
-		return
-	}
-	if n != 0 {
-		t.Errorf("Poll: wrong number of events: got %v, expected %v", n, 0)
-		return
-	}
-}
-
-func TestPpoll(t *testing.T) {
-	f, cleanup := mktmpfifo(t)
-	defer cleanup()
-
-	const timeout = 100 * time.Millisecond
-
-	ok := make(chan bool, 1)
-	go func() {
-		select {
-		case <-time.After(10 * timeout):
-			t.Errorf("Ppoll: failed to timeout after %d", 10*timeout)
-		case <-ok:
-		}
-	}()
-
-	fds := []unix.PollFd{{Fd: int32(f.Fd()), Events: unix.POLLIN}}
-	timeoutTs := unix.NsecToTimespec(int64(timeout))
-	n, err := unix.Ppoll(fds, &timeoutTs, nil)
-	ok <- true
-	if err != nil {
-		t.Errorf("Ppoll: unexpected error: %v", err)
-		return
-	}
-	if n != 0 {
-		t.Errorf("Ppoll: wrong number of events: got %v, expected %v", n, 0)
-		return
-	}
-}
-
-// mktmpfifo creates a temporary FIFO and provides a cleanup function.
-func mktmpfifo(t *testing.T) (*os.File, func()) {
-	err := unix.Mkfifo("fifo", 0666)
-	if err != nil {
-		t.Fatalf("mktmpfifo: failed to create FIFO: %v", err)
-	}
-
-	f, err := os.OpenFile("fifo", os.O_RDWR, 0666)
-	if err != nil {
-		os.Remove("fifo")
-		t.Fatalf("mktmpfifo: failed to open FIFO: %v", err)
-	}
-
-	return f, func() {
-		f.Close()
-		os.Remove("fifo")
-	}
-}
-
-func TestTime(t *testing.T) {
-	var ut unix.Time_t
-	ut2, err := unix.Time(&ut)
-	if err != nil {
-		t.Fatalf("Time: %v", err)
-	}
-	if ut != ut2 {
-		t.Errorf("Time: return value %v should be equal to argument %v", ut2, ut)
-	}
-
-	var now time.Time
-
-	for i := 0; i < 10; i++ {
-		ut, err = unix.Time(nil)
-		if err != nil {
-			t.Fatalf("Time: %v", err)
-		}
-
-		now = time.Now()
-
-		if int64(ut) == now.Unix() {
-			return
-		}
-	}
-
-	t.Errorf("Time: return value %v should be nearly equal to time.Now().Unix() %v", ut, now.Unix())
-}
-
-func TestUtime(t *testing.T) {
-	defer chtmpdir(t)()
-
-	touch(t, "file1")
-
-	buf := &unix.Utimbuf{
-		Modtime: 12345,
-	}
-
-	err := unix.Utime("file1", buf)
-	if err != nil {
-		t.Fatalf("Utime: %v", err)
-	}
-
-	fi, err := os.Stat("file1")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if fi.ModTime().Unix() != 12345 {
-		t.Errorf("Utime: failed to change modtime: expected %v, got %v", 12345, fi.ModTime().Unix())
-	}
-}
-
-func TestGetrlimit(t *testing.T) {
-	var rlim unix.Rlimit
-	err := unix.Getrlimit(unix.RLIMIT_AS, &rlim)
-	if err != nil {
-		t.Fatalf("Getrlimit: %v", err)
-	}
-}
-
-// utilities taken from os/os_test.go
-
-func touch(t *testing.T, name string) {
-	f, err := os.Create(name)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if err := f.Close(); err != nil {
-		t.Fatal(err)
-	}
-}
-
-// chtmpdir changes the working directory to a new temporary directory and
-// provides a cleanup function. Used when PWD is read-only.
-func chtmpdir(t *testing.T) func() {
-	oldwd, err := os.Getwd()
-	if err != nil {
-		t.Fatalf("chtmpdir: %v", err)
-	}
-	d, err := ioutil.TempDir("", "test")
-	if err != nil {
-		t.Fatalf("chtmpdir: %v", err)
-	}
-	if err := os.Chdir(d); err != nil {
-		t.Fatalf("chtmpdir: %v", err)
-	}
-	return func() {
-		if err := os.Chdir(oldwd); err != nil {
-			t.Fatalf("chtmpdir: %v", err)
-		}
-		os.RemoveAll(d)
-	}
-}
@@ -1,34 +0,0 @@
-// Copyright 2017 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.
-
-// +build solaris
-
-package unix_test
-
-import (
-	"os/exec"
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-func TestStatvfs(t *testing.T) {
-	if err := unix.Statvfs("", nil); err == nil {
-		t.Fatal(`Statvfs("") expected failure`)
-	}
-
-	statvfs := unix.Statvfs_t{}
-	if err := unix.Statvfs("/", &statvfs); err != nil {
-		t.Errorf(`Statvfs("/") failed: %v`, err)
-	}
-
-	if t.Failed() {
-		mount, err := exec.Command("mount").CombinedOutput()
-		if err != nil {
-			t.Logf("mount: %v\n%s", err, mount)
-		} else {
-			t.Logf("mount: %s", mount)
-		}
-	}
-}
@@ -1,50 +0,0 @@
-// Copyright 2013 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.
-
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
-
-package unix_test
-
-import (
-	"fmt"
-	"testing"
-
-	"golang.org/x/sys/unix"
-)
-
-func testSetGetenv(t *testing.T, key, value string) {
-	err := unix.Setenv(key, value)
-	if err != nil {
-		t.Fatalf("Setenv failed to set %q: %v", value, err)
-	}
-	newvalue, found := unix.Getenv(key)
-	if !found {
-		t.Fatalf("Getenv failed to find %v variable (want value %q)", key, value)
-	}
-	if newvalue != value {
-		t.Fatalf("Getenv(%v) = %q; want %q", key, newvalue, value)
-	}
-}
-
-func TestEnv(t *testing.T) {
-	testSetGetenv(t, "TESTENV", "AVALUE")
-	// make sure TESTENV gets set to "", not deleted
-	testSetGetenv(t, "TESTENV", "")
-}
-
-func TestItoa(t *testing.T) {
-	// Make most negative integer: 0x8000...
-	i := 1
-	for i<<1 != 0 {
-		i <<= 1
-	}
-	if i >= 0 {
-		t.Fatal("bad math")
-	}
-	s := unix.Itoa(i)
-	f := fmt.Sprint(i)
-	if s != f {
-		t.Fatalf("itoa(%d) = %s, want %s", i, s, f)
-	}
-}
@@ -1,345 +0,0 @@
-// Copyright 2013 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.
-
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
-
-package unix_test
-
-import (
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"net"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"runtime"
-	"testing"
-	"time"
-
-	"golang.org/x/sys/unix"
-)
-
-// Tests that below functions, structures and constants are consistent
-// on all Unix-like systems.
-func _() {
-	// program scheduling priority functions and constants
-	var (
-		_ func(int, int, int) error   = unix.Setpriority
-		_ func(int, int) (int, error) = unix.Getpriority
-	)
-	const (
-		_ int = unix.PRIO_USER
-		_ int = unix.PRIO_PROCESS
-		_ int = unix.PRIO_PGRP
-	)
-
-	// termios constants
-	const (
-		_ int = unix.TCIFLUSH
-		_ int = unix.TCIOFLUSH
-		_ int = unix.TCOFLUSH
-	)
-
-	// fcntl file locking structure and constants
-	var (
-		_ = unix.Flock_t{
-			Type:   int16(0),
-			Whence: int16(0),
-			Start:  int64(0),
-			Len:    int64(0),
-			Pid:    int32(0),
-		}
-	)
-	const (
-		_ = unix.F_GETLK
-		_ = unix.F_SETLK
-		_ = unix.F_SETLKW
-	)
-}
-
-// TestFcntlFlock tests whether the file locking structure matches
-// the calling convention of each kernel.
-func TestFcntlFlock(t *testing.T) {
-	name := filepath.Join(os.TempDir(), "TestFcntlFlock")
-	fd, err := unix.Open(name, unix.O_CREAT|unix.O_RDWR|unix.O_CLOEXEC, 0)
-	if err != nil {
-		t.Fatalf("Open failed: %v", err)
-	}
-	defer unix.Unlink(name)
-	defer unix.Close(fd)
-	flock := unix.Flock_t{
-		Type:  unix.F_RDLCK,
-		Start: 0, Len: 0, Whence: 1,
-	}
-	if err := unix.FcntlFlock(uintptr(fd), unix.F_GETLK, &flock); err != nil {
-		t.Fatalf("FcntlFlock failed: %v", err)
-	}
-}
-
-// TestPassFD tests passing a file descriptor over a Unix socket.
-//
-// This test involved both a parent and child process. The parent
-// process is invoked as a normal test, with "go test", which then
-// runs the child process by running the current test binary with args
-// "-test.run=^TestPassFD$" and an environment variable used to signal
-// that the test should become the child process instead.
-func TestPassFD(t *testing.T) {
-	if os.Getenv("GO_WANT_HELPER_PROCESS") == "1" {
-		passFDChild()
-		return
-	}
-
-	tempDir, err := ioutil.TempDir("", "TestPassFD")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.RemoveAll(tempDir)
-
-	fds, err := unix.Socketpair(unix.AF_LOCAL, unix.SOCK_STREAM, 0)
-	if err != nil {
-		t.Fatalf("Socketpair: %v", err)
-	}
-	defer unix.Close(fds[0])
-	defer unix.Close(fds[1])
-	writeFile := os.NewFile(uintptr(fds[0]), "child-writes")
-	readFile := os.NewFile(uintptr(fds[1]), "parent-reads")
-	defer writeFile.Close()
-	defer readFile.Close()
-
-	cmd := exec.Command(os.Args[0], "-test.run=^TestPassFD$", "--", tempDir)
-	cmd.Env = []string{"GO_WANT_HELPER_PROCESS=1"}
-	if lp := os.Getenv("LD_LIBRARY_PATH"); lp != "" {
-		cmd.Env = append(cmd.Env, "LD_LIBRARY_PATH="+lp)
-	}
-	cmd.ExtraFiles = []*os.File{writeFile}
-
-	out, err := cmd.CombinedOutput()
-	if len(out) > 0 || err != nil {
-		t.Fatalf("child process: %q, %v", out, err)
-	}
-
-	c, err := net.FileConn(readFile)
-	if err != nil {
-		t.Fatalf("FileConn: %v", err)
-	}
-	defer c.Close()
-
-	uc, ok := c.(*net.UnixConn)
-	if !ok {
-		t.Fatalf("unexpected FileConn type; expected UnixConn, got %T", c)
-	}
-
-	buf := make([]byte, 32) // expect 1 byte
-	oob := make([]byte, 32) // expect 24 bytes
-	closeUnix := time.AfterFunc(5*time.Second, func() {
-		t.Logf("timeout reading from unix socket")
-		uc.Close()
-	})
-	_, oobn, _, _, err := uc.ReadMsgUnix(buf, oob)
-	closeUnix.Stop()
-
-	scms, err := unix.ParseSocketControlMessage(oob[:oobn])
-	if err != nil {
-		t.Fatalf("ParseSocketControlMessage: %v", err)
-	}
-	if len(scms) != 1 {
-		t.Fatalf("expected 1 SocketControlMessage; got scms = %#v", scms)
-	}
-	scm := scms[0]
-	gotFds, err := unix.ParseUnixRights(&scm)
-	if err != nil {
-		t.Fatalf("unix.ParseUnixRights: %v", err)
-	}
-	if len(gotFds) != 1 {
-		t.Fatalf("wanted 1 fd; got %#v", gotFds)
-	}
-
-	f := os.NewFile(uintptr(gotFds[0]), "fd-from-child")
-	defer f.Close()
-
-	got, err := ioutil.ReadAll(f)
-	want := "Hello from child process!\n"
-	if string(got) != want {
-		t.Errorf("child process ReadAll: %q, %v; want %q", got, err, want)
-	}
-}
-
-// passFDChild is the child process used by TestPassFD.
-func passFDChild() {
-	defer os.Exit(0)
-
-	// Look for our fd. It should be fd 3, but we work around an fd leak
-	// bug here (http://golang.org/issue/2603) to let it be elsewhere.
-	var uc *net.UnixConn
-	for fd := uintptr(3); fd <= 10; fd++ {
-		f := os.NewFile(fd, "unix-conn")
-		var ok bool
-		netc, _ := net.FileConn(f)
-		uc, ok = netc.(*net.UnixConn)
-		if ok {
-			break
-		}
-	}
-	if uc == nil {
-		fmt.Println("failed to find unix fd")
-		return
-	}
-
-	// Make a file f to send to our parent process on uc.
-	// We make it in tempDir, which our parent will clean up.
-	flag.Parse()
-	tempDir := flag.Arg(0)
-	f, err := ioutil.TempFile(tempDir, "")
-	if err != nil {
-		fmt.Printf("TempFile: %v", err)
-		return
-	}
-
-	f.Write([]byte("Hello from child process!\n"))
-	f.Seek(0, 0)
-
-	rights := unix.UnixRights(int(f.Fd()))
-	dummyByte := []byte("x")
-	n, oobn, err := uc.WriteMsgUnix(dummyByte, rights, nil)
-	if err != nil {
-		fmt.Printf("WriteMsgUnix: %v", err)
-		return
-	}
-	if n != 1 || oobn != len(rights) {
-		fmt.Printf("WriteMsgUnix = %d, %d; want 1, %d", n, oobn, len(rights))
-		return
-	}
-}
-
-// TestUnixRightsRoundtrip tests that UnixRights, ParseSocketControlMessage,
-// and ParseUnixRights are able to successfully round-trip lists of file descriptors.
-func TestUnixRightsRoundtrip(t *testing.T) {
-	testCases := [...][][]int{
-		{{42}},
-		{{1, 2}},
-		{{3, 4, 5}},
-		{{}},
-		{{1, 2}, {3, 4, 5}, {}, {7}},
-	}
-	for _, testCase := range testCases {
-		b := []byte{}
-		var n int
-		for _, fds := range testCase {
-			// Last assignment to n wins
-			n = len(b) + unix.CmsgLen(4*len(fds))
-			b = append(b, unix.UnixRights(fds...)...)
-		}
-		// Truncate b
-		b = b[:n]
-
-		scms, err := unix.ParseSocketControlMessage(b)
-		if err != nil {
-			t.Fatalf("ParseSocketControlMessage: %v", err)
-		}
-		if len(scms) != len(testCase) {
-			t.Fatalf("expected %v SocketControlMessage; got scms = %#v", len(testCase), scms)
-		}
-		for i, scm := range scms {
-			gotFds, err := unix.ParseUnixRights(&scm)
-			if err != nil {
-				t.Fatalf("ParseUnixRights: %v", err)
-			}
-			wantFds := testCase[i]
-			if len(gotFds) != len(wantFds) {
-				t.Fatalf("expected %v fds, got %#v", len(wantFds), gotFds)
-			}
-			for j, fd := range gotFds {
-				if fd != wantFds[j] {
-					t.Fatalf("expected fd %v, got %v", wantFds[j], fd)
-				}
-			}
-		}
-	}
-}
-
-func TestRlimit(t *testing.T) {
-	var rlimit, zero unix.Rlimit
-	err := unix.Getrlimit(unix.RLIMIT_NOFILE, &rlimit)
-	if err != nil {
-		t.Fatalf("Getrlimit: save failed: %v", err)
-	}
-	if zero == rlimit {
-		t.Fatalf("Getrlimit: save failed: got zero value %#v", rlimit)
-	}
-	set := rlimit
-	set.Cur = set.Max - 1
-	err = unix.Setrlimit(unix.RLIMIT_NOFILE, &set)
-	if err != nil {
-		t.Fatalf("Setrlimit: set failed: %#v %v", set, err)
-	}
-	var get unix.Rlimit
-	err = unix.Getrlimit(unix.RLIMIT_NOFILE, &get)
-	if err != nil {
-		t.Fatalf("Getrlimit: get failed: %v", err)
-	}
-	set = rlimit
-	set.Cur = set.Max - 1
-	if set != get {
-		// Seems like Darwin requires some privilege to
-		// increase the soft limit of rlimit sandbox, though
-		// Setrlimit never reports an error.
-		switch runtime.GOOS {
-		case "darwin":
-		default:
-			t.Fatalf("Rlimit: change failed: wanted %#v got %#v", set, get)
-		}
-	}
-	err = unix.Setrlimit(unix.RLIMIT_NOFILE, &rlimit)
-	if err != nil {
-		t.Fatalf("Setrlimit: restore failed: %#v %v", rlimit, err)
-	}
-}
-
-func TestSeekFailure(t *testing.T) {
-	_, err := unix.Seek(-1, 0, 0)
-	if err == nil {
-		t.Fatalf("Seek(-1, 0, 0) did not fail")
-	}
-	str := err.Error() // used to crash on Linux
-	t.Logf("Seek: %v", str)
-	if str == "" {
-		t.Fatalf("Seek(-1, 0, 0) return error with empty message")
-	}
-}
-
-func TestDup(t *testing.T) {
-	file, err := ioutil.TempFile("", "TestDup")
-	if err != nil {
-		t.Fatalf("Tempfile failed: %v", err)
-	}
-	defer os.Remove(file.Name())
-	defer file.Close()
-	f := int(file.Fd())
-
-	newFd, err := unix.Dup(f)
-	if err != nil {
-		t.Fatalf("Dup: %v", err)
-	}
-
-	err = unix.Dup2(newFd, newFd+1)
-	if err != nil {
-		t.Fatalf("Dup2: %v", err)
-	}
-
-	b1 := []byte("Test123")
-	b2 := make([]byte, 7)
-	_, err = unix.Write(newFd+1, b1)
-	if err != nil {
-		t.Fatalf("Write to dup2 fd failed: %v", err)
-	}
-	_, err = unix.Seek(f, 0, 0)
-	_, err = unix.Read(f, b2)
-	if err != nil {
-		t.Fatalf("Read back failed: %v", err)
-	}
-	if string(b1) != string(b2) {
-		t.Errorf("Dup: stdout write not in file, expected %v, got %v", string(b1), string(b2))
-	}
-}
@@ -1,33 +0,0 @@
-// Copyright 2013 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.
-
-// +build windows
-
-package windows_test
-
-import (
-	"testing"
-
-	"golang.org/x/sys/windows"
-)
-
-func testSetGetenv(t *testing.T, key, value string) {
-	err := windows.Setenv(key, value)
-	if err != nil {
-		t.Fatalf("Setenv failed to set %q: %v", value, err)
-	}
-	newvalue, found := windows.Getenv(key)
-	if !found {
-		t.Fatalf("Getenv failed to find %v variable (want value %q)", key, value)
-	}
-	if newvalue != value {
-		t.Fatalf("Getenv(%v) = %q; want %q", key, newvalue, value)
-	}
-}
-
-func TestEnv(t *testing.T) {
-	testSetGetenv(t, "TESTENV", "AVALUE")
-	// make sure TESTENV gets set to "", not deleted
-	testSetGetenv(t, "TESTENV", "")
-}
@@ -1,107 +0,0 @@
-// Copyright 2012 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.
-
-package windows_test
-
-import (
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"syscall"
-	"testing"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-func TestWin32finddata(t *testing.T) {
-	dir, err := ioutil.TempDir("", "go-build")
-	if err != nil {
-		t.Fatalf("failed to create temp directory: %v", err)
-	}
-	defer os.RemoveAll(dir)
-
-	path := filepath.Join(dir, "long_name.and_extension")
-	f, err := os.Create(path)
-	if err != nil {
-		t.Fatalf("failed to create %v: %v", path, err)
-	}
-	f.Close()
-
-	type X struct {
-		fd  windows.Win32finddata
-		got byte
-		pad [10]byte // to protect ourselves
-
-	}
-	var want byte = 2 // it is unlikely to have this character in the filename
-	x := X{got: want}
-
-	pathp, _ := windows.UTF16PtrFromString(path)
-	h, err := windows.FindFirstFile(pathp, &(x.fd))
-	if err != nil {
-		t.Fatalf("FindFirstFile failed: %v", err)
-	}
-	err = windows.FindClose(h)
-	if err != nil {
-		t.Fatalf("FindClose failed: %v", err)
-	}
-
-	if x.got != want {
-		t.Fatalf("memory corruption: want=%d got=%d", want, x.got)
-	}
-}
-
-func TestFormatMessage(t *testing.T) {
-	dll := windows.MustLoadDLL("pdh.dll")
-
-	pdhOpenQuery := func(datasrc *uint16, userdata uint32, query *windows.Handle) (errno uintptr) {
-		r0, _, _ := syscall.Syscall(dll.MustFindProc("PdhOpenQueryW").Addr(), 3, uintptr(unsafe.Pointer(datasrc)), uintptr(userdata), uintptr(unsafe.Pointer(query)))
-		return r0
-	}
-
-	pdhCloseQuery := func(query windows.Handle) (errno uintptr) {
-		r0, _, _ := syscall.Syscall(dll.MustFindProc("PdhCloseQuery").Addr(), 1, uintptr(query), 0, 0)
-		return r0
-	}
-
-	var q windows.Handle
-	name, err := windows.UTF16PtrFromString("no_such_source")
-	if err != nil {
-		t.Fatal(err)
-	}
-	errno := pdhOpenQuery(name, 0, &q)
-	if errno == 0 {
-		pdhCloseQuery(q)
-		t.Fatal("PdhOpenQuery succeeded, but expected to fail.")
-	}
-
-	const flags uint32 = syscall.FORMAT_MESSAGE_FROM_HMODULE | syscall.FORMAT_MESSAGE_ARGUMENT_ARRAY | syscall.FORMAT_MESSAGE_IGNORE_INSERTS
-	buf := make([]uint16, 300)
-	_, err = windows.FormatMessage(flags, uintptr(dll.Handle), uint32(errno), 0, buf, nil)
-	if err != nil {
-		t.Fatal("FormatMessage for handle=%x and errno=%x failed: %v", dll.Handle, errno, err)
-	}
-}
-
-func abort(funcname string, err error) {
-	panic(funcname + " failed: " + err.Error())
-}
-
-func ExampleLoadLibrary() {
-	h, err := windows.LoadLibrary("kernel32.dll")
-	if err != nil {
-		abort("LoadLibrary", err)
-	}
-	defer windows.FreeLibrary(h)
-	proc, err := windows.GetProcAddress(h, "GetVersion")
-	if err != nil {
-		abort("GetProcAddress", err)
-	}
-	r, _, _ := syscall.Syscall(uintptr(proc), 0, 0, 0, 0)
-	major := byte(r)
-	minor := uint8(r >> 8)
-	build := uint16(r >> 16)
-	print("windows version ", major, ".", minor, " (Build ", build, ")\n")
-}