{,cmd/}vendor: rerun 'go mod vendor' to prune ignored files

Updates #31088

Change-Id: Ia126e4e83ac5cb12c2c4151d5e5c975497598f24
Reviewed-on: https://go-review.googlesource.com/c/go/+/172979
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

17 files changed, 2 insertions, 4279 deletions

diff --git a/src/cmd/vendor/github.com/ianlancetaylor/demangle/c++filt.go b/src/cmd/vendor/github.com/ianlancetaylor/demangle/c++filt.go
deleted file mode 100644
index 7ba817c9fe..0000000000
--- a/src/cmd/vendor/github.com/ianlancetaylor/demangle/c++filt.go
+++ /dev/null
@@ -1,144 +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 ignore
-
-// This is a program that works like the GNU c++filt program.
-// It's here for testing purposes and as an example.
-
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"io"
-	"os"
-	"strings"
-	"unicode"
-
-	"github.com/ianlancetaylor/demangle"
-)
-
-func flagUsage() {
-	usage(os.Stderr, 2)
-}
-
-func usage(w io.Writer, status int) {
-	fmt.Fprintf(w, "Usage: %s [options] [mangled names]\n", os.Args[0])
-	flag.CommandLine.SetOutput(w)
-	flag.PrintDefaults()
-	fmt.Fprintln(w, `Demangled names are displayed to stdout
-If a name cannot be demangled it is just echoed to stdout.
-If no names are provided on the command line, stdin is read.`)
-	os.Exit(status)
-}
-
-var stripUnderscore = flag.Bool("_", false, "Ignore first leading underscore")
-var noParams = flag.Bool("p", false, "Do not display function argument types")
-var noVerbose = flag.Bool("i", false, "Do not show implementation details (if any)")
-var help = flag.Bool("h", false, "Display help information")
-var debug = flag.Bool("d", false, "Display debugging information for strings on command line")
-
-// Unimplemented c++filt flags:
-// -n (opposite of -_)
-// -t (demangle types)
-// -s (set demangling style)
-// -V (print version information)
-
-// Characters considered to be part of a symbol.
-const symbolChars = "_$."
-
-func main() {
-	flag.Usage = func() { usage(os.Stderr, 1) }
-	flag.Parse()
-
-	if *help {
-		usage(os.Stdout, 0)
-	}
-
-	out := bufio.NewWriter(os.Stdout)
-
-	if flag.NArg() > 0 {
-		for _, f := range flag.Args() {
-			if *debug {
-				a, err := demangle.ToAST(f, options()...)
-				if err != nil {
-					fmt.Fprintf(os.Stderr, "%s: %v\n", f, err)
-				} else {
-					fmt.Fprintf(out, "%#v\n", a)
-				}
-			} else {
-				doDemangle(out, f)
-			}
-			out.WriteByte('\n')
-		}
-		if err := out.Flush(); err != nil {
-			fmt.Fprintln(os.Stderr, err)
-			os.Exit(2)
-		}
-		return
-	}
-
-	scanner := bufio.NewScanner(bufio.NewReader(os.Stdin))
-	for scanner.Scan() {
-		line := scanner.Text()
-		start := -1
-		for i, c := range line {
-			if unicode.IsLetter(c) || unicode.IsNumber(c) || strings.ContainsRune(symbolChars, c) {
-				if start < 0 {
-					start = i
-				}
-			} else {
-				if start >= 0 {
-					doDemangle(out, line[start:i])
-				}
-				out.WriteRune(c)
-				start = -1
-			}
-		}
-		if start >= 0 {
-			doDemangle(out, line[start:])
-			start = -1
-		}
-		out.WriteByte('\n')
-		if err := out.Flush(); err != nil {
-			fmt.Fprintln(os.Stderr, err)
-			os.Exit(2)
-		}
-	}
-}
-
-// Demangle a string just as the GNU c++filt program does.
-func doDemangle(out *bufio.Writer, name string) {
-	skip := 0
-	if name[0] == '.' || name[0] == '$' {
-		skip++
-	}
-	if *stripUnderscore && name[skip] == '_' {
-		skip++
-	}
-	result := demangle.Filter(name[skip:], options()...)
-	if result == name[skip:] {
-		out.WriteString(name)
-	} else {
-		if name[0] == '.' {
-			out.WriteByte('.')
-		}
-		out.WriteString(result)
-	}
-}
-
-// options returns the demangling options to use based on the command
-// line flags.
-func options() []demangle.Option {
-	var options []demangle.Option
-	if *noParams {
-		options = append(options, demangle.NoParams)
-	}
-	if !*noVerbose {
-		options = append(options, demangle.Verbose)
-	}
-	return options
-}
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/mkasm_darwin.go b/src/cmd/vendor/golang.org/x/sys/unix/mkasm_darwin.go
deleted file mode 100644
index 4548b993db..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/mkasm_darwin.go
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright 2018 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 ignore
-
-// mkasm_darwin.go generates assembly trampolines to call libSystem routines from Go.
-//This program must be run after mksyscall.go.
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os"
-	"strings"
-)
-
-func main() {
-	in1, err := ioutil.ReadFile("syscall_darwin.go")
-	if err != nil {
-		log.Fatalf("can't open syscall_darwin.go: %s", err)
-	}
-	arch := os.Args[1]
-	in2, err := ioutil.ReadFile(fmt.Sprintf("syscall_darwin_%s.go", arch))
-	if err != nil {
-		log.Fatalf("can't open syscall_darwin_%s.go: %s", arch, err)
-	}
-	in3, err := ioutil.ReadFile(fmt.Sprintf("zsyscall_darwin_%s.go", arch))
-	if err != nil {
-		log.Fatalf("can't open zsyscall_darwin_%s.go: %s", arch, err)
-	}
-	in := string(in1) + string(in2) + string(in3)
-
-	trampolines := map[string]bool{}
-
-	var out bytes.Buffer
-
-	fmt.Fprintf(&out, "// go run mkasm_darwin.go %s\n", strings.Join(os.Args[1:], " "))
-	fmt.Fprintf(&out, "// Code generated by the command above; DO NOT EDIT.\n")
-	fmt.Fprintf(&out, "\n")
-	fmt.Fprintf(&out, "// +build go1.12\n")
-	fmt.Fprintf(&out, "\n")
-	fmt.Fprintf(&out, "#include \"textflag.h\"\n")
-	for _, line := range strings.Split(in, "\n") {
-		if !strings.HasPrefix(line, "func ") || !strings.HasSuffix(line, "_trampoline()") {
-			continue
-		}
-		fn := line[5 : len(line)-13]
-		if !trampolines[fn] {
-			trampolines[fn] = true
-			fmt.Fprintf(&out, "TEXT ·%s_trampoline(SB),NOSPLIT,$0-0\n", fn)
-			fmt.Fprintf(&out, "\tJMP\t%s(SB)\n", fn)
-		}
-	}
-	err = ioutil.WriteFile(fmt.Sprintf("zsyscall_darwin_%s.s", arch), out.Bytes(), 0644)
-	if err != nil {
-		log.Fatalf("can't write zsyscall_darwin_%s.s: %s", arch, err)
-	}
-}
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/mkpost.go b/src/cmd/vendor/golang.org/x/sys/unix/mkpost.go
deleted file mode 100644
index 9feddd00c4..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/mkpost.go
+++ /dev/null
@@ -1,106 +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 ignore
-
-// mkpost processes the output of cgo -godefs to
-// modify the generated types. It is used to clean up
-// the sys API in an architecture specific manner.
-//
-// mkpost is run after cgo -godefs; see README.md.
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"go/format"
-	"io/ioutil"
-	"log"
-	"os"
-	"regexp"
-)
-
-func main() {
-	// Get the OS and architecture (using GOARCH_TARGET if it exists)
-	goos := os.Getenv("GOOS")
-	goarch := os.Getenv("GOARCH_TARGET")
-	if goarch == "" {
-		goarch = os.Getenv("GOARCH")
-	}
-	// Check that we are using the Docker-based build system if we should be.
-	if goos == "linux" {
-		if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
-			os.Stderr.WriteString("In the Docker-based build system, mkpost should not be called directly.\n")
-			os.Stderr.WriteString("See README.md\n")
-			os.Exit(1)
-		}
-	}
-
-	b, err := ioutil.ReadAll(os.Stdin)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// Intentionally export __val fields in Fsid and Sigset_t
-	valRegex := regexp.MustCompile(`type (Fsid|Sigset_t) struct {(\s+)X__val(\s+\S+\s+)}`)
-	b = valRegex.ReplaceAll(b, []byte("type $1 struct {${2}Val$3}"))
-
-	// Intentionally export __fds_bits field in FdSet
-	fdSetRegex := regexp.MustCompile(`type (FdSet) struct {(\s+)X__fds_bits(\s+\S+\s+)}`)
-	b = fdSetRegex.ReplaceAll(b, []byte("type $1 struct {${2}Bits$3}"))
-
-	// If we have empty Ptrace structs, we should delete them. Only s390x emits
-	// nonempty Ptrace structs.
-	ptraceRexexp := regexp.MustCompile(`type Ptrace((Psw|Fpregs|Per) struct {\s*})`)
-	b = ptraceRexexp.ReplaceAll(b, nil)
-
-	// Replace the control_regs union with a blank identifier for now.
-	controlRegsRegex := regexp.MustCompile(`(Control_regs)\s+\[0\]uint64`)
-	b = controlRegsRegex.ReplaceAll(b, []byte("_ [0]uint64"))
-
-	// Remove fields that are added by glibc
-	// Note that this is unstable as the identifers are private.
-	removeFieldsRegex := regexp.MustCompile(`X__glibc\S*`)
-	b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Convert [65]int8 to [65]byte in Utsname members to simplify
-	// conversion to string; see golang.org/issue/20753
-	convertUtsnameRegex := regexp.MustCompile(`((Sys|Node|Domain)name|Release|Version|Machine)(\s+)\[(\d+)\]u?int8`)
-	b = convertUtsnameRegex.ReplaceAll(b, []byte("$1$3[$4]byte"))
-
-	// Convert [1024]int8 to [1024]byte in Ptmget members
-	convertPtmget := regexp.MustCompile(`([SC]n)(\s+)\[(\d+)\]u?int8`)
-	b = convertPtmget.ReplaceAll(b, []byte("$1[$3]byte"))
-
-	// Remove spare fields (e.g. in Statx_t)
-	spareFieldsRegex := regexp.MustCompile(`X__spare\S*`)
-	b = spareFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Remove cgo padding fields
-	removePaddingFieldsRegex := regexp.MustCompile(`Pad_cgo_\d+`)
-	b = removePaddingFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Remove padding, hidden, or unused fields
-	removeFieldsRegex = regexp.MustCompile(`\b(X_\S+|Padding)`)
-	b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Remove the first line of warning from cgo
-	b = b[bytes.IndexByte(b, '\n')+1:]
-	// Modify the command in the header to include:
-	//  mkpost, our own warning, and a build tag.
-	replacement := fmt.Sprintf(`$1 | go run mkpost.go
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s,%s`, goarch, goos)
-	cgoCommandRegex := regexp.MustCompile(`(cgo -godefs .*)`)
-	b = cgoCommandRegex.ReplaceAll(b, []byte(replacement))
-
-	// gofmt
-	b, err = format.Source(b)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	os.Stdout.Write(b)
-}
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/mksyscall.go b/src/cmd/vendor/golang.org/x/sys/unix/mksyscall.go
deleted file mode 100644
index bed93d4890..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/mksyscall.go
+++ /dev/null
@@ -1,402 +0,0 @@
-// Copyright 2018 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 ignore
-
-/*
-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.
-*/
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32       = flag.Bool("b32", false, "32bit big-endian")
-	l32       = flag.Bool("l32", false, "32bit little-endian")
-	plan9     = flag.Bool("plan9", false, "plan9")
-	openbsd   = flag.Bool("openbsd", false, "openbsd")
-	netbsd    = flag.Bool("netbsd", false, "netbsd")
-	dragonfly = flag.Bool("dragonfly", false, "dragonfly")
-	arm       = flag.Bool("arm", false, "arm") // 64-bit value should use (even, odd)-pair
-	tags      = flag.String("tags", "", "build tags")
-	filename  = flag.String("output", "", "output file name (standard output if omitted)")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	// Get the OS and architecture (using GOARCH_TARGET if it exists)
-	goos := os.Getenv("GOOS")
-	if goos == "" {
-		fmt.Fprintln(os.Stderr, "GOOS not defined in environment")
-		os.Exit(1)
-	}
-	goarch := os.Getenv("GOARCH_TARGET")
-	if goarch == "" {
-		goarch = os.Getenv("GOARCH")
-	}
-
-	// Check that we are using the Docker-based build system if we should
-	if goos == "linux" {
-		if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
-			fmt.Fprintf(os.Stderr, "In the Docker-based build system, mksyscall should not be called directly.\n")
-			fmt.Fprintf(os.Stderr, "See README.md\n")
-			os.Exit(1)
-		}
-	}
-
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	libc := false
-	if goos == "darwin" && strings.Contains(buildTags(), ",go1.12") {
-		libc = true
-	}
-	trampolines := map[string]bool{}
-
-	text := ""
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// 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.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*((?i)SYS_[A-Z0-9_]+))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, sysname := f[2], f[3], f[4], f[5]
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			// 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.
-			outDecl := ""
-			if len(out) > 0 {
-				outDecl = fmt.Sprintf(" (%s)", strings.Join(out, ", "))
-			}
-			text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outDecl)
-
-			// Check if err return available
-			errvar := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-					break
-				}
-			}
-
-			// Prepare arguments to Syscall.
-			var args []string
-			n := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, "uintptr(unsafe.Pointer("+p.Name+"))")
-				} else if p.Type == "string" && errvar != "" {
-					text += fmt.Sprintf("\tvar _p%d *byte\n", n)
-					text += fmt.Sprintf("\t_p%d, %s = BytePtrFromString(%s)\n", n, errvar, p.Name)
-					text += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					text += fmt.Sprintf("\tvar _p%d *byte\n", n)
-					text += fmt.Sprintf("\t_p%d, _ = BytePtrFromString(%s)\n", n, p.Name)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil {
-					// 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 += fmt.Sprintf("\tvar _p%d unsafe.Pointer\n", n)
-					text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = unsafe.Pointer(&%s[0])\n\t}", p.Name, n, p.Name)
-					text += fmt.Sprintf(" else {\n\t\t_p%d = unsafe.Pointer(&_zero)\n\t}\n", n)
-					args = append(args, fmt.Sprintf("uintptr(_p%d)", n), fmt.Sprintf("uintptr(len(%s))", p.Name))
-					n++
-				} else if p.Type == "int64" && (*openbsd || *netbsd) {
-					args = append(args, "0")
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else if endianness == "little-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-					}
-				} else if p.Type == "int64" && *dragonfly {
-					if regexp.MustCompile(`^(?i)extp(read|write)`).FindStringSubmatch(funct) == nil {
-						args = append(args, "0")
-					}
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else if endianness == "little-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-					}
-				} else if (p.Type == "int64" || p.Type == "uint64") && endianness != "" {
-					if len(args)%2 == 1 && *arm {
-						// arm abi specifies 64-bit argument uses
-						// (even, odd) pair
-						args = append(args, "0")
-					}
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					}
-				} else {
-					args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-				}
-			}
-
-			// Determine which form to use; pad args with zeros.
-			asm := "Syscall"
-			if nonblock != nil {
-				if errvar == "" && goos == "linux" {
-					asm = "RawSyscallNoError"
-				} else {
-					asm = "RawSyscall"
-				}
-			} else {
-				if errvar == "" && goos == "linux" {
-					asm = "SyscallNoError"
-				}
-			}
-			if len(args) <= 3 {
-				for len(args) < 3 {
-					args = append(args, "0")
-				}
-			} else if len(args) <= 6 {
-				asm += "6"
-				for len(args) < 6 {
-					args = append(args, "0")
-				}
-			} else if len(args) <= 9 {
-				asm += "9"
-				for len(args) < 9 {
-					args = append(args, "0")
-				}
-			} else {
-				fmt.Fprintf(os.Stderr, "%s:%s too many arguments to system call\n", path, funct)
-			}
-
-			// System call number.
-			if sysname == "" {
-				sysname = "SYS_" + funct
-				sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`)
-				sysname = strings.ToUpper(sysname)
-			}
-
-			var libcFn string
-			if libc {
-				asm = "syscall_" + strings.ToLower(asm[:1]) + asm[1:] // internal syscall call
-				sysname = strings.TrimPrefix(sysname, "SYS_")         // remove SYS_
-				sysname = strings.ToLower(sysname)                    // lowercase
-				if sysname == "getdirentries64" {
-					// Special case - libSystem name and
-					// raw syscall name don't match.
-					sysname = "__getdirentries64"
-				}
-				libcFn = sysname
-				sysname = "funcPC(libc_" + sysname + "_trampoline)"
-			}
-
-			// Actual call.
-			arglist := strings.Join(args, ", ")
-			call := fmt.Sprintf("%s(%s, %s)", asm, sysname, arglist)
-
-			// Assign return values.
-			body := ""
-			ret := []string{"_", "_", "_"}
-			doErrno := false
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" && !*plan9 {
-					reg = "e1"
-					ret[2] = reg
-					doErrno = true
-				} else if p.Name == "err" && *plan9 {
-					ret[0] = "r0"
-					ret[2] = "e1"
-					break
-				} else {
-					reg = fmt.Sprintf("r%d", i)
-					ret[i] = reg
-				}
-				if p.Type == "bool" {
-					reg = fmt.Sprintf("%s != 0", reg)
-				}
-				if p.Type == "int64" && endianness != "" {
-					// 64-bit number in r1:r0 or r0:r1.
-					if i+2 > len(out) {
-						fmt.Fprintf(os.Stderr, "%s:%s not enough registers for int64 return\n", path, funct)
-					}
-					if endianness == "big-endian" {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i, i+1)
-					} else {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i+1, i)
-					}
-					ret[i] = fmt.Sprintf("r%d", i)
-					ret[i+1] = fmt.Sprintf("r%d", i+1)
-				}
-				if reg != "e1" || *plan9 {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-			if ret[0] == "_" && ret[1] == "_" && ret[2] == "_" {
-				text += fmt.Sprintf("\t%s\n", call)
-			} else {
-				if errvar == "" && goos == "linux" {
-					// raw syscall without error on Linux, see golang.org/issue/22924
-					text += fmt.Sprintf("\t%s, %s := %s\n", ret[0], ret[1], call)
-				} else {
-					text += fmt.Sprintf("\t%s, %s, %s := %s\n", ret[0], ret[1], ret[2], call)
-				}
-			}
-			text += body
-
-			if *plan9 && ret[2] == "e1" {
-				text += "\tif int32(r0) == -1 {\n"
-				text += "\t\terr = e1\n"
-				text += "\t}\n"
-			} else if doErrno {
-				text += "\tif e1 != 0 {\n"
-				text += "\t\terr = errnoErr(e1)\n"
-				text += "\t}\n"
-			}
-			text += "\treturn\n"
-			text += "}\n\n"
-
-			if libc && !trampolines[libcFn] {
-				// some system calls share a trampoline, like read and readlen.
-				trampolines[libcFn] = true
-				// Declare assembly trampoline.
-				text += fmt.Sprintf("func libc_%s_trampoline()\n", libcFn)
-				// Assembly trampoline calls the libc_* function, which this magic
-				// redirects to use the function from libSystem.
-				text += fmt.Sprintf("//go:linkname libc_%s libc_%s\n", libcFn, libcFn)
-				text += fmt.Sprintf("//go:cgo_import_dynamic libc_%s %s \"/usr/lib/libSystem.B.dylib\"\n", libcFn, libcFn)
-				text += "\n"
-			}
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	fmt.Printf(srcTemplate, cmdLine(), buildTags(), text)
-}
-
-const srcTemplate = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package unix
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-var _ syscall.Errno
-
-%s
-`
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc.go b/src/cmd/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc.go
deleted file mode 100644
index f2c58fb7cc..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc.go
+++ /dev/null
@@ -1,404 +0,0 @@
-// Copyright 2019 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 ignore
-
-/*
-This program reads a file containing function prototypes
-(like syscall_aix.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
-*/
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32  = flag.Bool("b32", false, "32bit big-endian")
-	l32  = flag.Bool("l32", false, "32bit little-endian")
-	aix  = flag.Bool("aix", false, "aix")
-	tags = flag.String("tags", "", "build tags")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall_aix_ppc.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall_aix_ppc.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	pack := ""
-	text := ""
-	cExtern := "/*\n#include <stdint.h>\n#include <stddef.h>\n"
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" {
-				pack = p[1]
-			}
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// 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.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6]
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			inps = strings.Join(in, ", ")
-			outps = strings.Join(out, ", ")
-
-			// Try in vain to keep people from editing this file.
-			// The theory is that they jump into the middle of the file
-			// without reading the header.
-			text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-
-			// Check if value return, err return available
-			errvar := ""
-			retvar := ""
-			rettype := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-				} else {
-					retvar = p.Name
-					rettype = p.Type
-				}
-			}
-
-			// System call name.
-			if sysname == "" {
-				sysname = funct
-			}
-			sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`)
-			sysname = strings.ToLower(sysname) // All libc functions are lowercase.
-
-			cRettype := ""
-			if rettype == "unsafe.Pointer" {
-				cRettype = "uintptr_t"
-			} else if rettype == "uintptr" {
-				cRettype = "uintptr_t"
-			} else if regexp.MustCompile(`^_`).FindStringSubmatch(rettype) != nil {
-				cRettype = "uintptr_t"
-			} else if rettype == "int" {
-				cRettype = "int"
-			} else if rettype == "int32" {
-				cRettype = "int"
-			} else if rettype == "int64" {
-				cRettype = "long long"
-			} else if rettype == "uint32" {
-				cRettype = "unsigned int"
-			} else if rettype == "uint64" {
-				cRettype = "unsigned long long"
-			} else {
-				cRettype = "int"
-			}
-			if sysname == "exit" {
-				cRettype = "void"
-			}
-
-			// Change p.Types to c
-			var cIn []string
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "string" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t", "size_t")
-				} else if p.Type == "unsafe.Pointer" {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "uintptr" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "int" {
-					cIn = append(cIn, "int")
-				} else if p.Type == "int32" {
-					cIn = append(cIn, "int")
-				} else if p.Type == "int64" {
-					cIn = append(cIn, "long long")
-				} else if p.Type == "uint32" {
-					cIn = append(cIn, "unsigned int")
-				} else if p.Type == "uint64" {
-					cIn = append(cIn, "unsigned long long")
-				} else {
-					cIn = append(cIn, "int")
-				}
-			}
-
-			if funct != "fcntl" && funct != "FcntlInt" && funct != "readlen" && funct != "writelen" {
-				// Imports of system calls from libc
-				cExtern += fmt.Sprintf("%s %s", cRettype, sysname)
-				cIn := strings.Join(cIn, ", ")
-				cExtern += fmt.Sprintf("(%s);\n", cIn)
-			}
-
-			// So file name.
-			if *aix {
-				if modname == "" {
-					modname = "libc.a/shr_64.o"
-				} else {
-					fmt.Fprintf(os.Stderr, "%s: only syscall using libc are available\n", funct)
-					os.Exit(1)
-				}
-			}
-
-			strconvfunc := "C.CString"
-
-			// Go function header.
-			if outps != "" {
-				outps = fmt.Sprintf(" (%s)", outps)
-			}
-			if text != "" {
-				text += "\n"
-			}
-
-			text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outps)
-
-			// Prepare arguments to Syscall.
-			var args []string
-			n := 0
-			argN := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, "C.uintptr_t(uintptr(unsafe.Pointer("+p.Name+")))")
-				} else if p.Type == "string" && errvar != "" {
-					text += fmt.Sprintf("\t_p%d := uintptr(unsafe.Pointer(%s(%s)))\n", n, strconvfunc, p.Name)
-					args = append(args, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					text += fmt.Sprintf("\t_p%d := uintptr(unsafe.Pointer(%s(%s)))\n", n, strconvfunc, p.Name)
-					args = append(args, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if m := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); m != nil {
-					// 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 += fmt.Sprintf("\tvar _p%d *%s\n", n, m[1])
-					text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name)
-					args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(unsafe.Pointer(_p%d)))", n))
-					n++
-					text += fmt.Sprintf("\tvar _p%d int\n", n)
-					text += fmt.Sprintf("\t_p%d = len(%s)\n", n, p.Name)
-					args = append(args, fmt.Sprintf("C.size_t(_p%d)", n))
-					n++
-				} else if p.Type == "int64" && endianness != "" {
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					}
-					n++
-				} else if p.Type == "bool" {
-					text += fmt.Sprintf("\tvar _p%d uint32\n", n)
-					text += fmt.Sprintf("\tif %s {\n\t\t_p%d = 1\n\t} else {\n\t\t_p%d = 0\n\t}\n", p.Name, n, n)
-					args = append(args, fmt.Sprintf("_p%d", n))
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(%s))", p.Name))
-				} else if p.Type == "unsafe.Pointer" {
-					args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(%s))", p.Name))
-				} else if p.Type == "int" {
-					if (argN == 2) && ((funct == "readlen") || (funct == "writelen")) {
-						args = append(args, fmt.Sprintf("C.size_t(%s)", p.Name))
-					} else if argN == 0 && funct == "fcntl" {
-						args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-					} else if (argN == 2) && ((funct == "fcntl") || (funct == "FcntlInt")) {
-						args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("C.int(%s)", p.Name))
-					}
-				} else if p.Type == "int32" {
-					args = append(args, fmt.Sprintf("C.int(%s)", p.Name))
-				} else if p.Type == "int64" {
-					args = append(args, fmt.Sprintf("C.longlong(%s)", p.Name))
-				} else if p.Type == "uint32" {
-					args = append(args, fmt.Sprintf("C.uint(%s)", p.Name))
-				} else if p.Type == "uint64" {
-					args = append(args, fmt.Sprintf("C.ulonglong(%s)", p.Name))
-				} else if p.Type == "uintptr" {
-					args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else {
-					args = append(args, fmt.Sprintf("C.int(%s)", p.Name))
-				}
-				argN++
-			}
-
-			// Actual call.
-			arglist := strings.Join(args, ", ")
-			call := ""
-			if sysname == "exit" {
-				if errvar != "" {
-					call += "er :="
-				} else {
-					call += ""
-				}
-			} else if errvar != "" {
-				call += "r0,er :="
-			} else if retvar != "" {
-				call += "r0,_ :="
-			} else {
-				call += ""
-			}
-			call += fmt.Sprintf("C.%s(%s)", sysname, arglist)
-
-			// Assign return values.
-			body := ""
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" {
-					reg = "e1"
-				} else {
-					reg = "r0"
-				}
-				if reg != "e1" {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-
-			// verify return
-			if sysname != "exit" && errvar != "" {
-				if regexp.MustCompile(`^uintptr`).FindStringSubmatch(cRettype) != nil {
-					body += "\tif (uintptr(r0) ==^uintptr(0) && er != nil) {\n"
-					body += fmt.Sprintf("\t\t%s = er\n", errvar)
-					body += "\t}\n"
-				} else {
-					body += "\tif (r0 ==-1 && er != nil) {\n"
-					body += fmt.Sprintf("\t\t%s = er\n", errvar)
-					body += "\t}\n"
-				}
-			} else if errvar != "" {
-				body += "\tif (er != nil) {\n"
-				body += fmt.Sprintf("\t\t%s = er\n", errvar)
-				body += "\t}\n"
-			}
-
-			text += fmt.Sprintf("\t%s\n", call)
-			text += body
-
-			text += "\treturn\n"
-			text += "}\n"
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	imp := ""
-	if pack != "unix" {
-		imp = "import \"golang.org/x/sys/unix\"\n"
-
-	}
-	fmt.Printf(srcTemplate, cmdLine(), buildTags(), pack, cExtern, imp, text)
-}
-
-const srcTemplate = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package %s
-
-
-%s
-*/
-import "C"
-import (
-	"unsafe"
-)
-
-
-%s
-
-%s
-`
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc64.go b/src/cmd/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc64.go
deleted file mode 100644
index 45b4429088..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc64.go
+++ /dev/null
@@ -1,602 +0,0 @@
-// Copyright 2019 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 ignore
-
-/*
-This program reads a file containing function prototypes
-(like syscall_aix.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
-
-
-This program will generate three files and handle both gc and gccgo implementation:
-  - zsyscall_aix_ppc64.go: the common part of each implementation (error handler, pointer creation)
-  - zsyscall_aix_ppc64_gc.go: gc part with //go_cgo_import_dynamic and a call to syscall6
-  - zsyscall_aix_ppc64_gccgo.go: gccgo part with C function and conversion to C type.
-
- The generated code looks like this
-
-zsyscall_aix_ppc64.go
-func asyscall(...) (n int, err error) {
-	 // Pointer Creation
-	 r1, e1 := callasyscall(...)
-	 // Type Conversion
-	 // Error Handler
-	 return
-}
-
-zsyscall_aix_ppc64_gc.go
-//go:cgo_import_dynamic libc_asyscall asyscall "libc.a/shr_64.o"
-//go:linkname libc_asyscall libc_asyscall
-var asyscall syscallFunc
-
-func callasyscall(...) (r1 uintptr, e1 Errno) {
-	 r1, _, e1 = syscall6(uintptr(unsafe.Pointer(&libc_asyscall)), "nb_args", ... )
-	 return
-}
-
-zsyscall_aix_ppc64_ggcgo.go
-
-// int asyscall(...)
-
-import "C"
-
-func callasyscall(...) (r1 uintptr, e1 Errno) {
-	 r1 = uintptr(C.asyscall(...))
-	 e1 = syscall.GetErrno()
-	 return
-}
-*/
-
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32  = flag.Bool("b32", false, "32bit big-endian")
-	l32  = flag.Bool("l32", false, "32bit little-endian")
-	aix  = flag.Bool("aix", false, "aix")
-	tags = flag.String("tags", "", "build tags")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall_aix_ppc64.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall_aix_ppc64.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	pack := ""
-	// GCCGO
-	textgccgo := ""
-	cExtern := "/*\n#include <stdint.h>\n"
-	// GC
-	textgc := ""
-	dynimports := ""
-	linknames := ""
-	var vars []string
-	// COMMON
-	textcommon := ""
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" {
-				pack = p[1]
-			}
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// 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.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6]
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			inps = strings.Join(in, ", ")
-			outps = strings.Join(out, ", ")
-
-			if sysname == "" {
-				sysname = funct
-			}
-
-			onlyCommon := false
-			if funct == "readlen" || funct == "writelen" || funct == "FcntlInt" || funct == "FcntlFlock" {
-				// This function call another syscall which is already implemented.
-				// Therefore, the gc and gccgo part must not be generated.
-				onlyCommon = true
-			}
-
-			// Try in vain to keep people from editing this file.
-			// The theory is that they jump into the middle of the file
-			// without reading the header.
-
-			textcommon += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-			if !onlyCommon {
-				textgccgo += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-				textgc += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-			}
-
-			// Check if value return, err return available
-			errvar := ""
-			rettype := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-				} else {
-					rettype = p.Type
-				}
-			}
-
-			sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`)
-			sysname = strings.ToLower(sysname) // All libc functions are lowercase.
-
-			// GCCGO Prototype return type
-			cRettype := ""
-			if rettype == "unsafe.Pointer" {
-				cRettype = "uintptr_t"
-			} else if rettype == "uintptr" {
-				cRettype = "uintptr_t"
-			} else if regexp.MustCompile(`^_`).FindStringSubmatch(rettype) != nil {
-				cRettype = "uintptr_t"
-			} else if rettype == "int" {
-				cRettype = "int"
-			} else if rettype == "int32" {
-				cRettype = "int"
-			} else if rettype == "int64" {
-				cRettype = "long long"
-			} else if rettype == "uint32" {
-				cRettype = "unsigned int"
-			} else if rettype == "uint64" {
-				cRettype = "unsigned long long"
-			} else {
-				cRettype = "int"
-			}
-			if sysname == "exit" {
-				cRettype = "void"
-			}
-
-			// GCCGO Prototype arguments type
-			var cIn []string
-			for i, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "string" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t", "size_t")
-				} else if p.Type == "unsafe.Pointer" {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "uintptr" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "int" {
-					if (i == 0 || i == 2) && funct == "fcntl" {
-						// These fcntl arguments needs to be uintptr to be able to call FcntlInt and FcntlFlock
-						cIn = append(cIn, "uintptr_t")
-					} else {
-						cIn = append(cIn, "int")
-					}
-
-				} else if p.Type == "int32" {
-					cIn = append(cIn, "int")
-				} else if p.Type == "int64" {
-					cIn = append(cIn, "long long")
-				} else if p.Type == "uint32" {
-					cIn = append(cIn, "unsigned int")
-				} else if p.Type == "uint64" {
-					cIn = append(cIn, "unsigned long long")
-				} else {
-					cIn = append(cIn, "int")
-				}
-			}
-
-			if !onlyCommon {
-				// GCCGO Prototype Generation
-				// Imports of system calls from libc
-				cExtern += fmt.Sprintf("%s %s", cRettype, sysname)
-				cIn := strings.Join(cIn, ", ")
-				cExtern += fmt.Sprintf("(%s);\n", cIn)
-			}
-			// GC Library name
-			if modname == "" {
-				modname = "libc.a/shr_64.o"
-			} else {
-				fmt.Fprintf(os.Stderr, "%s: only syscall using libc are available\n", funct)
-				os.Exit(1)
-			}
-			sysvarname := fmt.Sprintf("libc_%s", sysname)
-
-			if !onlyCommon {
-				// GC Runtime import of function to allow cross-platform builds.
-				dynimports += fmt.Sprintf("//go:cgo_import_dynamic %s %s \"%s\"\n", sysvarname, sysname, modname)
-				// GC Link symbol to proc address variable.
-				linknames += fmt.Sprintf("//go:linkname %s %s\n", sysvarname, sysvarname)
-				// GC Library proc address variable.
-				vars = append(vars, sysvarname)
-			}
-
-			strconvfunc := "BytePtrFromString"
-			strconvtype := "*byte"
-
-			// Go function header.
-			if outps != "" {
-				outps = fmt.Sprintf(" (%s)", outps)
-			}
-			if textcommon != "" {
-				textcommon += "\n"
-			}
-
-			textcommon += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outps)
-
-			// Prepare arguments tocall.
-			var argscommon []string // Arguments in the common part
-			var argscall []string   // Arguments for call prototype
-			var argsgc []string     // Arguments for gc call (with syscall6)
-			var argsgccgo []string  // Arguments for gccgo call (with C.name_of_syscall)
-			n := 0
-			argN := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(%s))", p.Name))
-					argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-					argsgc = append(argsgc, p.Name)
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else if p.Type == "string" && errvar != "" {
-					textcommon += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					textcommon += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name)
-					textcommon += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					argscall = append(argscall, fmt.Sprintf("_p%d uintptr ", n))
-					argsgc = append(argsgc, fmt.Sprintf("_p%d", n))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					textcommon += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					textcommon += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name)
-					textcommon += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					argscall = append(argscall, fmt.Sprintf("_p%d uintptr", n))
-					argsgc = append(argsgc, fmt.Sprintf("_p%d", n))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if m := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); m != nil {
-					// Convert slice into pointer, length.
-					// Have to be careful not to take address of &a[0] if len == 0:
-					// pass nil in that case.
-					textcommon += fmt.Sprintf("\tvar _p%d *%s\n", n, m[1])
-					textcommon += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name)
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n), fmt.Sprintf("len(%s)", p.Name))
-					argscall = append(argscall, fmt.Sprintf("_p%d uintptr", n), fmt.Sprintf("_lenp%d int", n))
-					argsgc = append(argsgc, fmt.Sprintf("_p%d", n), fmt.Sprintf("uintptr(_lenp%d)", n))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n), fmt.Sprintf("C.size_t(_lenp%d)", n))
-					n++
-				} else if p.Type == "int64" && endianness != "" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses int64 with 32 bits mode. Case not yet implemented\n")
-				} else if p.Type == "bool" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses bool. Case not yet implemented\n")
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil || p.Type == "unsafe.Pointer" {
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(%s)", p.Name))
-					argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-					argsgc = append(argsgc, p.Name)
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else if p.Type == "int" {
-					if (argN == 0 || argN == 2) && ((funct == "fcntl") || (funct == "FcntlInt") || (funct == "FcntlFlock")) {
-						// These fcntl arguments need to be uintptr to be able to call FcntlInt and FcntlFlock
-						argscommon = append(argscommon, fmt.Sprintf("uintptr(%s)", p.Name))
-						argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-						argsgc = append(argsgc, p.Name)
-						argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-
-					} else {
-						argscommon = append(argscommon, p.Name)
-						argscall = append(argscall, fmt.Sprintf("%s int", p.Name))
-						argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-						argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name))
-					}
-				} else if p.Type == "int32" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s int32", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name))
-				} else if p.Type == "int64" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s int64", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.longlong(%s)", p.Name))
-				} else if p.Type == "uint32" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s uint32", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uint(%s)", p.Name))
-				} else if p.Type == "uint64" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s uint64", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.ulonglong(%s)", p.Name))
-				} else if p.Type == "uintptr" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-					argsgc = append(argsgc, p.Name)
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else {
-					argscommon = append(argscommon, fmt.Sprintf("int(%s)", p.Name))
-					argscall = append(argscall, fmt.Sprintf("%s int", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name))
-				}
-				argN++
-			}
-			nargs := len(argsgc)
-
-			// COMMON function generation
-			argscommonlist := strings.Join(argscommon, ", ")
-			callcommon := fmt.Sprintf("call%s(%s)", sysname, argscommonlist)
-			ret := []string{"_", "_"}
-			body := ""
-			doErrno := false
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" {
-					reg = "e1"
-					ret[1] = reg
-					doErrno = true
-				} else {
-					reg = "r0"
-					ret[0] = reg
-				}
-				if p.Type == "bool" {
-					reg = fmt.Sprintf("%s != 0", reg)
-				}
-				if reg != "e1" {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-			if ret[0] == "_" && ret[1] == "_" {
-				textcommon += fmt.Sprintf("\t%s\n", callcommon)
-			} else {
-				textcommon += fmt.Sprintf("\t%s, %s := %s\n", ret[0], ret[1], callcommon)
-			}
-			textcommon += body
-
-			if doErrno {
-				textcommon += "\tif e1 != 0 {\n"
-				textcommon += "\t\terr = errnoErr(e1)\n"
-				textcommon += "\t}\n"
-			}
-			textcommon += "\treturn\n"
-			textcommon += "}\n"
-
-			if onlyCommon {
-				continue
-			}
-
-			// CALL Prototype
-			callProto := fmt.Sprintf("func call%s(%s) (r1 uintptr, e1 Errno) {\n", sysname, strings.Join(argscall, ", "))
-
-			// GC function generation
-			asm := "syscall6"
-			if nonblock != nil {
-				asm = "rawSyscall6"
-			}
-
-			if len(argsgc) <= 6 {
-				for len(argsgc) < 6 {
-					argsgc = append(argsgc, "0")
-				}
-			} else {
-				fmt.Fprintf(os.Stderr, "%s: too many arguments to system call", funct)
-				os.Exit(1)
-			}
-			argsgclist := strings.Join(argsgc, ", ")
-			callgc := fmt.Sprintf("%s(uintptr(unsafe.Pointer(&%s)), %d, %s)", asm, sysvarname, nargs, argsgclist)
-
-			textgc += callProto
-			textgc += fmt.Sprintf("\tr1, _, e1 = %s\n", callgc)
-			textgc += "\treturn\n}\n"
-
-			// GCCGO function generation
-			argsgccgolist := strings.Join(argsgccgo, ", ")
-			callgccgo := fmt.Sprintf("C.%s(%s)", sysname, argsgccgolist)
-			textgccgo += callProto
-			textgccgo += fmt.Sprintf("\tr1 = uintptr(%s)\n", callgccgo)
-			textgccgo += "\te1 = syscall.GetErrno()\n"
-			textgccgo += "\treturn\n}\n"
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	imp := ""
-	if pack != "unix" {
-		imp = "import \"golang.org/x/sys/unix\"\n"
-
-	}
-
-	// Print zsyscall_aix_ppc64.go
-	err := ioutil.WriteFile("zsyscall_aix_ppc64.go",
-		[]byte(fmt.Sprintf(srcTemplate1, cmdLine(), buildTags(), pack, imp, textcommon)),
-		0644)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, err.Error())
-		os.Exit(1)
-	}
-
-	// Print zsyscall_aix_ppc64_gc.go
-	vardecls := "\t" + strings.Join(vars, ",\n\t")
-	vardecls += " syscallFunc"
-	err = ioutil.WriteFile("zsyscall_aix_ppc64_gc.go",
-		[]byte(fmt.Sprintf(srcTemplate2, cmdLine(), buildTags(), pack, imp, dynimports, linknames, vardecls, textgc)),
-		0644)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, err.Error())
-		os.Exit(1)
-	}
-
-	// Print zsyscall_aix_ppc64_gccgo.go
-	err = ioutil.WriteFile("zsyscall_aix_ppc64_gccgo.go",
-		[]byte(fmt.Sprintf(srcTemplate3, cmdLine(), buildTags(), pack, cExtern, imp, textgccgo)),
-		0644)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, err.Error())
-		os.Exit(1)
-	}
-}
-
-const srcTemplate1 = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package %s
-
-import (
-	"unsafe"
-)
-
-
-%s
-
-%s
-`
-const srcTemplate2 = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-// +build !gccgo
-
-package %s
-
-import (
-	"unsafe"
-)
-%s
-%s
-%s
-type syscallFunc uintptr
-
-var (
-%s
-)
-
-// Implemented in runtime/syscall_aix.go.
-func rawSyscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
-func syscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
-
-%s
-`
-const srcTemplate3 = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-// +build gccgo
-
-package %s
-
-%s
-*/
-import "C"
-import (
-	"syscall"
-)
-
-
-%s
-
-%s
-`
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/mksyscall_solaris.go b/src/cmd/vendor/golang.org/x/sys/unix/mksyscall_solaris.go
deleted file mode 100644
index 3d864738b6..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/mksyscall_solaris.go
+++ /dev/null
@@ -1,335 +0,0 @@
-// Copyright 2019 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 ignore
-
-/*
- 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
-*/
-
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32  = flag.Bool("b32", false, "32bit big-endian")
-	l32  = flag.Bool("l32", false, "32bit little-endian")
-	tags = flag.String("tags", "", "build tags")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall_solaris.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall_solaris.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	pack := ""
-	text := ""
-	dynimports := ""
-	linknames := ""
-	var vars []string
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" {
-				pack = p[1]
-			}
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// 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.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6]
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			inps = strings.Join(in, ", ")
-			outps = strings.Join(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"
-
-			// So file name.
-			if modname == "" {
-				modname = "libc"
-			}
-
-			// System call name.
-			if sysname == "" {
-				sysname = funct
-			}
-
-			// System call pointer variable name.
-			sysvarname := fmt.Sprintf("proc%s", sysname)
-
-			strconvfunc := "BytePtrFromString"
-			strconvtype := "*byte"
-
-			sysname = strings.ToLower(sysname) // All libc functions are lowercase.
-
-			// Runtime import of function to allow cross-platform builds.
-			dynimports += fmt.Sprintf("//go:cgo_import_dynamic libc_%s %s \"%s.so\"\n", sysname, sysname, modname)
-			// Link symbol to proc address variable.
-			linknames += fmt.Sprintf("//go:linkname %s libc_%s\n", sysvarname, sysname)
-			// Library proc address variable.
-			vars = append(vars, sysvarname)
-
-			// Go function header.
-			outlist := strings.Join(out, ", ")
-			if outlist != "" {
-				outlist = fmt.Sprintf(" (%s)", outlist)
-			}
-			if text != "" {
-				text += "\n"
-			}
-			text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outlist)
-
-			// Check if err return available
-			errvar := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-					continue
-				}
-			}
-
-			// Prepare arguments to Syscall.
-			var args []string
-			n := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, "uintptr(unsafe.Pointer("+p.Name+"))")
-				} else if p.Type == "string" && errvar != "" {
-					text += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					text += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name)
-					text += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					text += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					text += fmt.Sprintf("\t_p%d, _ = %s(%s)\n", n, strconvfunc, p.Name)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if s := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); s != nil {
-					// 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 += fmt.Sprintf("\tvar _p%d *%s\n", n, s[1])
-					text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n), fmt.Sprintf("uintptr(len(%s))", p.Name))
-					n++
-				} else if p.Type == "int64" && endianness != "" {
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					}
-				} else if p.Type == "bool" {
-					text += fmt.Sprintf("\tvar _p%d uint32\n", n)
-					text += fmt.Sprintf("\tif %s {\n\t\t_p%d = 1\n\t} else {\n\t\t_p%d = 0\n\t}\n", p.Name, n, n)
-					args = append(args, fmt.Sprintf("uintptr(_p%d)", n))
-					n++
-				} else {
-					args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-				}
-			}
-			nargs := len(args)
-
-			// Determine which form to use; pad args with zeros.
-			asm := "sysvicall6"
-			if nonblock != nil {
-				asm = "rawSysvicall6"
-			}
-			if len(args) <= 6 {
-				for len(args) < 6 {
-					args = append(args, "0")
-				}
-			} else {
-				fmt.Fprintf(os.Stderr, "%s: too many arguments to system call\n", path)
-				os.Exit(1)
-			}
-
-			// Actual call.
-			arglist := strings.Join(args, ", ")
-			call := fmt.Sprintf("%s(uintptr(unsafe.Pointer(&%s)), %d, %s)", asm, sysvarname, nargs, arglist)
-
-			// Assign return values.
-			body := ""
-			ret := []string{"_", "_", "_"}
-			doErrno := false
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" {
-					reg = "e1"
-					ret[2] = reg
-					doErrno = true
-				} else {
-					reg = fmt.Sprintf("r%d", i)
-					ret[i] = reg
-				}
-				if p.Type == "bool" {
-					reg = fmt.Sprintf("%d != 0", reg)
-				}
-				if p.Type == "int64" && endianness != "" {
-					// 64-bit number in r1:r0 or r0:r1.
-					if i+2 > len(out) {
-						fmt.Fprintf(os.Stderr, "%s: not enough registers for int64 return\n", path)
-						os.Exit(1)
-					}
-					if endianness == "big-endian" {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i, i+1)
-					} else {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i+1, i)
-					}
-					ret[i] = fmt.Sprintf("r%d", i)
-					ret[i+1] = fmt.Sprintf("r%d", i+1)
-				}
-				if reg != "e1" {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-			if ret[0] == "_" && ret[1] == "_" && ret[2] == "_" {
-				text += fmt.Sprintf("\t%s\n", call)
-			} else {
-				text += fmt.Sprintf("\t%s, %s, %s := %s\n", ret[0], ret[1], ret[2], call)
-			}
-			text += body
-
-			if doErrno {
-				text += "\tif e1 != 0 {\n"
-				text += "\t\terr = e1\n"
-				text += "\t}\n"
-			}
-			text += "\treturn\n"
-			text += "}\n"
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	imp := ""
-	if pack != "unix" {
-		imp = "import \"golang.org/x/sys/unix\"\n"
-
-	}
-	vardecls := "\t" + strings.Join(vars, ",\n\t")
-	vardecls += " syscallFunc"
-	fmt.Printf(srcTemplate, cmdLine(), buildTags(), pack, imp, dynimports, linknames, vardecls, text)
-}
-
-const srcTemplate = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package %s
-
-import (
-	"syscall"
-	"unsafe"
-)
-%s
-%s
-%s
-var (
-%s	
-)
-
-%s
-`
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/mksysnum.go b/src/cmd/vendor/golang.org/x/sys/unix/mksysnum.go
deleted file mode 100644
index 07f8960ff3..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/mksysnum.go
+++ /dev/null
@@ -1,190 +0,0 @@
-// Copyright 2018 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 ignore
-
-// Generate system call table for DragonFly, NetBSD,
-// FreeBSD, OpenBSD or Darwin from master list
-// (for example, /usr/src/sys/kern/syscalls.master or
-// sys/syscall.h).
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	goos, goarch string
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksysnum.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return fmt.Sprintf("%s,%s", goarch, goos)
-}
-
-func checkErr(err error) {
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "%v\n", err)
-		os.Exit(1)
-	}
-}
-
-// source string and substring slice for regexp
-type re struct {
-	str string   // source string
-	sub []string // matched sub-string
-}
-
-// Match performs regular expression match
-func (r *re) Match(exp string) bool {
-	r.sub = regexp.MustCompile(exp).FindStringSubmatch(r.str)
-	if r.sub != nil {
-		return true
-	}
-	return false
-}
-
-// fetchFile fetches a text file from URL
-func fetchFile(URL string) io.Reader {
-	resp, err := http.Get(URL)
-	checkErr(err)
-	defer resp.Body.Close()
-	body, err := ioutil.ReadAll(resp.Body)
-	checkErr(err)
-	return strings.NewReader(string(body))
-}
-
-// readFile reads a text file from path
-func readFile(path string) io.Reader {
-	file, err := os.Open(os.Args[1])
-	checkErr(err)
-	return file
-}
-
-func format(name, num, proto string) string {
-	name = strings.ToUpper(name)
-	// There are multiple entries for enosys and nosys, so comment them out.
-	nm := re{str: name}
-	if nm.Match(`^SYS_E?NOSYS$`) {
-		name = fmt.Sprintf("// %s", name)
-	}
-	if name == `SYS_SYS_EXIT` {
-		name = `SYS_EXIT`
-	}
-	return fmt.Sprintf("	%s = %s;  // %s\n", name, num, proto)
-}
-
-func main() {
-	// Get the OS (using GOOS_TARGET if it exist)
-	goos = os.Getenv("GOOS_TARGET")
-	if goos == "" {
-		goos = os.Getenv("GOOS")
-	}
-	// Get the architecture (using GOARCH_TARGET if it exists)
-	goarch = os.Getenv("GOARCH_TARGET")
-	if goarch == "" {
-		goarch = os.Getenv("GOARCH")
-	}
-	// Check if GOOS and GOARCH environment variables are defined
-	if goarch == "" || goos == "" {
-		fmt.Fprintf(os.Stderr, "GOARCH or GOOS not defined in environment\n")
-		os.Exit(1)
-	}
-
-	file := strings.TrimSpace(os.Args[1])
-	var syscalls io.Reader
-	if strings.HasPrefix(file, "https://") || strings.HasPrefix(file, "http://") {
-		// Download syscalls.master file
-		syscalls = fetchFile(file)
-	} else {
-		syscalls = readFile(file)
-	}
-
-	var text, line string
-	s := bufio.NewScanner(syscalls)
-	for s.Scan() {
-		t := re{str: line}
-		if t.Match(`^(.*)\\$`) {
-			// Handle continuation
-			line = t.sub[1]
-			line += strings.TrimLeft(s.Text(), " \t")
-		} else {
-			// New line
-			line = s.Text()
-		}
-		t = re{str: line}
-		if t.Match(`\\$`) {
-			continue
-		}
-		t = re{str: line}
-
-		switch goos {
-		case "dragonfly":
-			if t.Match(`^([0-9]+)\s+STD\s+({ \S+\s+(\w+).*)$`) {
-				num, proto := t.sub[1], t.sub[2]
-				name := fmt.Sprintf("SYS_%s", t.sub[3])
-				text += format(name, num, proto)
-			}
-		case "freebsd":
-			if t.Match(`^([0-9]+)\s+\S+\s+(?:NO)?STD\s+({ \S+\s+(\w+).*)$`) {
-				num, proto := t.sub[1], t.sub[2]
-				name := fmt.Sprintf("SYS_%s", t.sub[3])
-				text += format(name, num, proto)
-			}
-		case "openbsd":
-			if t.Match(`^([0-9]+)\s+STD\s+(NOLOCK\s+)?({ \S+\s+\*?(\w+).*)$`) {
-				num, proto, name := t.sub[1], t.sub[3], t.sub[4]
-				text += format(name, num, proto)
-			}
-		case "netbsd":
-			if t.Match(`^([0-9]+)\s+((STD)|(NOERR))\s+(RUMP\s+)?({\s+\S+\s*\*?\s*\|(\S+)\|(\S*)\|(\w+).*\s+})(\s+(\S+))?$`) {
-				num, proto, compat := t.sub[1], t.sub[6], t.sub[8]
-				name := t.sub[7] + "_" + t.sub[9]
-				if t.sub[11] != "" {
-					name = t.sub[7] + "_" + t.sub[11]
-				}
-				name = strings.ToUpper(name)
-				if compat == "" || compat == "13" || compat == "30" || compat == "50" {
-					text += fmt.Sprintf("	%s = %s;  // %s\n", name, num, proto)
-				}
-			}
-		case "darwin":
-			if t.Match(`^#define\s+SYS_(\w+)\s+([0-9]+)`) {
-				name, num := t.sub[1], t.sub[2]
-				name = strings.ToUpper(name)
-				text += fmt.Sprintf("	SYS_%s = %s;\n", name, num)
-			}
-		default:
-			fmt.Fprintf(os.Stderr, "unrecognized GOOS=%s\n", goos)
-			os.Exit(1)
-
-		}
-	}
-	err := s.Err()
-	checkErr(err)
-
-	fmt.Printf(template, cmdLine(), buildTags(), text)
-}
-
-const template = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package unix
-
-const(
-%s)`
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/types_aix.go b/src/cmd/vendor/golang.org/x/sys/unix/types_aix.go
deleted file mode 100644
index 25e834940d..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/types_aix.go
+++ /dev/null
@@ -1,236 +0,0 @@
-// Copyright 2018 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 ignore
-// +build aix
-
-/*
-Input to cgo -godefs.  See also mkerrors.sh and mkall.sh
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/limits.h>
-#include <sys/un.h>
-#include <utime.h>
-#include <sys/utsname.h>
-#include <sys/poll.h>
-#include <sys/resource.h>
-#include <sys/stat.h>
-#include <sys/statfs.h>
-#include <sys/termio.h>
-#include <sys/ioctl.h>
-
-#include <termios.h>
-
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-
-
-#include <dirent.h>
-#include <fcntl.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;     // this one gets used for fields
-	struct sockaddr_in s2;  // these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-	PathMax        = C.PATH_MAX
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-type off64 C.off64_t
-type off C.off_t
-type Mode_t C.mode_t
-
-// Time
-
-type Timespec C.struct_timespec
-
-type StTimespec C.struct_st_timespec
-
-type Timeval C.struct_timeval
-
-type Timeval32 C.struct_timeval32
-
-type Timex C.struct_timex
-
-type Time_t C.time_t
-
-type Tms C.struct_tms
-
-type Utimbuf C.struct_utimbuf
-
-type Timezone C.struct_timezone
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit64
-
-type Pid_t C.pid_t
-
-type _Gid_t C.gid_t
-
-type dev_t C.dev_t
-
-// Files
-
-type Stat_t C.struct_stat
-
-type StatxTimestamp C.struct_statx_timestamp
-
-type Statx_t C.struct_statx
-
-type Dirent C.struct_dirent
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Cmsghdr C.struct_cmsghdr
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type Linger C.struct_linger
-
-type Msghdr C.struct_msghdr
-
-const (
-	SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny   = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix  = C.sizeof_struct_sockaddr_un
-	SizeofLinger        = C.sizeof_struct_linger
-	SizeofIPMreq        = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq      = C.sizeof_struct_ipv6_mreq
-	SizeofIPv6MTUInfo   = C.sizeof_struct_ip6_mtuinfo
-	SizeofMsghdr        = C.sizeof_struct_msghdr
-	SizeofCmsghdr       = C.sizeof_struct_cmsghdr
-	SizeofICMPv6Filter  = C.sizeof_struct_icmp6_filter
-)
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr = C.sizeof_struct_if_msghdr
-)
-
-type IfMsgHdr C.struct_if_msghdr
-
-// Misc
-
-type FdSet C.fd_set
-
-type Utsname C.struct_utsname
-
-type Ustat_t C.struct_ustat
-
-type Sigset_t C.sigset_t
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_REMOVEDIR        = C.AT_REMOVEDIR
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Termio C.struct_termio
-
-type Winsize C.struct_winsize
-
-//poll
-
-type PollFd struct {
-	Fd      int32
-	Events  uint16
-	Revents uint16
-}
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
-
-//flock_t
-
-type Flock_t C.struct_flock64
-
-// Statfs
-
-type Fsid_t C.struct_fsid_t
-type Fsid64_t C.struct_fsid64_t
-
-type Statfs_t C.struct_statfs
-
-const RNDGETENTCNT = 0x80045200
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/types_darwin.go b/src/cmd/vendor/golang.org/x/sys/unix/types_darwin.go
deleted file mode 100644
index 9fd2aaa6a2..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/types_darwin.go
+++ /dev/null
@@ -1,277 +0,0 @@
-// 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.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define __DARWIN_UNIX03 0
-#define KERNEL
-#define _DARWIN_USE_64_BIT_INODE
-#include <dirent.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <unistd.h>
-#include <mach/mach.h>
-#include <mach/message.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/param.h>
-#include <sys/ptrace.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/uio.h>
-#include <sys/un.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/if_var.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-type Timeval32 C.struct_timeval32
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-type Stat_t C.struct_stat64
-
-type Statfs_t C.struct_statfs64
-
-type Flock_t C.struct_flock
-
-type Fstore_t C.struct_fstore
-
-type Radvisory_t C.struct_radvisory
-
-type Fbootstraptransfer_t C.struct_fbootstraptransfer
-
-type Log2phys_t C.struct_log2phys
-
-type Fsid C.struct_fsid
-
-type Dirent C.struct_dirent
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet4Pktinfo C.struct_in_pktinfo
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet4Pktinfo     = C.sizeof_struct_in_pktinfo
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Ptrace requests
-
-const (
-	PTRACE_TRACEME = C.PT_TRACE_ME
-	PTRACE_CONT    = C.PT_CONTINUE
-	PTRACE_KILL    = C.PT_KILL
-)
-
-// Events (kqueue, kevent)
-
-type Kevent_t C.struct_kevent
-
-// Select
-
-type FdSet C.fd_set
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr    = C.sizeof_struct_if_msghdr
-	SizeofIfData      = C.sizeof_struct_if_data
-	SizeofIfaMsghdr   = C.sizeof_struct_ifa_msghdr
-	SizeofIfmaMsghdr  = C.sizeof_struct_ifma_msghdr
-	SizeofIfmaMsghdr2 = C.sizeof_struct_ifma_msghdr2
-	SizeofRtMsghdr    = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics   = C.sizeof_struct_rt_metrics
-)
-
-type IfMsghdr C.struct_if_msghdr
-
-type IfData C.struct_if_data
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type IfmaMsghdr C.struct_ifma_msghdr
-
-type IfmaMsghdr2 C.struct_ifma_msghdr2
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion = C.sizeof_struct_bpf_version
-	SizeofBpfStat    = C.sizeof_struct_bpf_stat
-	SizeofBpfProgram = C.sizeof_struct_bpf_program
-	SizeofBpfInsn    = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr     = C.sizeof_struct_bpf_hdr
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfHdr C.struct_bpf_hdr
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Winsize C.struct_winsize
-
-// fchmodat-like syscalls.
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_REMOVEDIR        = C.AT_REMOVEDIR
-	AT_SYMLINK_FOLLOW   = C.AT_SYMLINK_FOLLOW
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
-
-// uname
-
-type Utsname C.struct_utsname
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/types_dragonfly.go b/src/cmd/vendor/golang.org/x/sys/unix/types_dragonfly.go
deleted file mode 100644
index 3365dd79d0..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/types_dragonfly.go
+++ /dev/null
@@ -1,263 +0,0 @@
-// 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.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define KERNEL
-#include <dirent.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/param.h>
-#include <sys/ptrace.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/un.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-type Stat_t C.struct_stat
-
-type Statfs_t C.struct_statfs
-
-type Flock_t C.struct_flock
-
-type Dirent C.struct_dirent
-
-type Fsid C.struct_fsid
-
-// File system limits
-
-const (
-	PathMax = C.PATH_MAX
-)
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Ptrace requests
-
-const (
-	PTRACE_TRACEME = C.PT_TRACE_ME
-	PTRACE_CONT    = C.PT_CONTINUE
-	PTRACE_KILL    = C.PT_KILL
-)
-
-// Events (kqueue, kevent)
-
-type Kevent_t C.struct_kevent
-
-// Select
-
-type FdSet C.fd_set
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr         = C.sizeof_struct_if_msghdr
-	SizeofIfData           = C.sizeof_struct_if_data
-	SizeofIfaMsghdr        = C.sizeof_struct_ifa_msghdr
-	SizeofIfmaMsghdr       = C.sizeof_struct_ifma_msghdr
-	SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr
-	SizeofRtMsghdr         = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics        = C.sizeof_struct_rt_metrics
-)
-
-type IfMsghdr C.struct_if_msghdr
-
-type IfData C.struct_if_data
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type IfmaMsghdr C.struct_ifma_msghdr
-
-type IfAnnounceMsghdr C.struct_if_announcemsghdr
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion = C.sizeof_struct_bpf_version
-	SizeofBpfStat    = C.sizeof_struct_bpf_stat
-	SizeofBpfProgram = C.sizeof_struct_bpf_program
-	SizeofBpfInsn    = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr     = C.sizeof_struct_bpf_hdr
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfHdr C.struct_bpf_hdr
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Winsize C.struct_winsize
-
-// fchmodat-like syscalls.
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
-
-// Uname
-
-type Utsname C.struct_utsname
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/types_freebsd.go b/src/cmd/vendor/golang.org/x/sys/unix/types_freebsd.go
deleted file mode 100644
index 7470798951..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/types_freebsd.go
+++ /dev/null
@@ -1,356 +0,0 @@
-// 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.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define	_WANT_FREEBSD11_STAT	1
-#define	_WANT_FREEBSD11_STATFS	1
-#define	_WANT_FREEBSD11_DIRENT	1
-#define	_WANT_FREEBSD11_KEVENT  1
-
-#include <dirent.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/capsicum.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/param.h>
-#include <sys/ptrace.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/un.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-// This structure is a duplicate of if_data on FreeBSD 8-STABLE.
-// See /usr/include/net/if.h.
-struct if_data8 {
-	u_char  ifi_type;
-	u_char  ifi_physical;
-	u_char  ifi_addrlen;
-	u_char  ifi_hdrlen;
-	u_char  ifi_link_state;
-	u_char  ifi_spare_char1;
-	u_char  ifi_spare_char2;
-	u_char  ifi_datalen;
-	u_long  ifi_mtu;
-	u_long  ifi_metric;
-	u_long  ifi_baudrate;
-	u_long  ifi_ipackets;
-	u_long  ifi_ierrors;
-	u_long  ifi_opackets;
-	u_long  ifi_oerrors;
-	u_long  ifi_collisions;
-	u_long  ifi_ibytes;
-	u_long  ifi_obytes;
-	u_long  ifi_imcasts;
-	u_long  ifi_omcasts;
-	u_long  ifi_iqdrops;
-	u_long  ifi_noproto;
-	u_long  ifi_hwassist;
-// FIXME: these are now unions, so maybe need to change definitions?
-#undef ifi_epoch
-	time_t  ifi_epoch;
-#undef ifi_lastchange
-	struct  timeval ifi_lastchange;
-};
-
-// This structure is a duplicate of if_msghdr on FreeBSD 8-STABLE.
-// See /usr/include/net/if.h.
-struct if_msghdr8 {
-	u_short ifm_msglen;
-	u_char  ifm_version;
-	u_char  ifm_type;
-	int     ifm_addrs;
-	int     ifm_flags;
-	u_short ifm_index;
-	struct  if_data8 ifm_data;
-};
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-const (
-	_statfsVersion = C.STATFS_VERSION
-	_dirblksiz     = C.DIRBLKSIZ
-)
-
-type Stat_t C.struct_stat
-
-type stat_freebsd11_t C.struct_freebsd11_stat
-
-type Statfs_t C.struct_statfs
-
-type statfs_freebsd11_t C.struct_freebsd11_statfs
-
-type Flock_t C.struct_flock
-
-type Dirent C.struct_dirent
-
-type dirent_freebsd11 C.struct_freebsd11_dirent
-
-type Fsid C.struct_fsid
-
-// File system limits
-
-const (
-	PathMax = C.PATH_MAX
-)
-
-// Advice to Fadvise
-
-const (
-	FADV_NORMAL     = C.POSIX_FADV_NORMAL
-	FADV_RANDOM     = C.POSIX_FADV_RANDOM
-	FADV_SEQUENTIAL = C.POSIX_FADV_SEQUENTIAL
-	FADV_WILLNEED   = C.POSIX_FADV_WILLNEED
-	FADV_DONTNEED   = C.POSIX_FADV_DONTNEED
-	FADV_NOREUSE    = C.POSIX_FADV_NOREUSE
-)
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPMreqn C.struct_ip_mreqn
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPMreqn          = C.sizeof_struct_ip_mreqn
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Ptrace requests
-
-const (
-	PTRACE_TRACEME = C.PT_TRACE_ME
-	PTRACE_CONT    = C.PT_CONTINUE
-	PTRACE_KILL    = C.PT_KILL
-)
-
-// Events (kqueue, kevent)
-
-type Kevent_t C.struct_kevent_freebsd11
-
-// Select
-
-type FdSet C.fd_set
-
-// Routing and interface messages
-
-const (
-	sizeofIfMsghdr         = C.sizeof_struct_if_msghdr
-	SizeofIfMsghdr         = C.sizeof_struct_if_msghdr8
-	sizeofIfData           = C.sizeof_struct_if_data
-	SizeofIfData           = C.sizeof_struct_if_data8
-	SizeofIfaMsghdr        = C.sizeof_struct_ifa_msghdr
-	SizeofIfmaMsghdr       = C.sizeof_struct_ifma_msghdr
-	SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr
-	SizeofRtMsghdr         = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics        = C.sizeof_struct_rt_metrics
-)
-
-type ifMsghdr C.struct_if_msghdr
-
-type IfMsghdr C.struct_if_msghdr8
-
-type ifData C.struct_if_data
-
-type IfData C.struct_if_data8
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type IfmaMsghdr C.struct_ifma_msghdr
-
-type IfAnnounceMsghdr C.struct_if_announcemsghdr
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion    = C.sizeof_struct_bpf_version
-	SizeofBpfStat       = C.sizeof_struct_bpf_stat
-	SizeofBpfZbuf       = C.sizeof_struct_bpf_zbuf
-	SizeofBpfProgram    = C.sizeof_struct_bpf_program
-	SizeofBpfInsn       = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr        = C.sizeof_struct_bpf_hdr
-	SizeofBpfZbufHeader = C.sizeof_struct_bpf_zbuf_header
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfZbuf C.struct_bpf_zbuf
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfHdr C.struct_bpf_hdr
-
-type BpfZbufHeader C.struct_bpf_zbuf_header
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Winsize C.struct_winsize
-
-// fchmodat-like syscalls.
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_REMOVEDIR        = C.AT_REMOVEDIR
-	AT_SYMLINK_FOLLOW   = C.AT_SYMLINK_FOLLOW
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR      = C.POLLERR
-	POLLHUP      = C.POLLHUP
-	POLLIN       = C.POLLIN
-	POLLINIGNEOF = C.POLLINIGNEOF
-	POLLNVAL     = C.POLLNVAL
-	POLLOUT      = C.POLLOUT
-	POLLPRI      = C.POLLPRI
-	POLLRDBAND   = C.POLLRDBAND
-	POLLRDNORM   = C.POLLRDNORM
-	POLLWRBAND   = C.POLLWRBAND
-	POLLWRNORM   = C.POLLWRNORM
-)
-
-// Capabilities
-
-type CapRights C.struct_cap_rights
-
-// Uname
-
-type Utsname C.struct_utsname
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/types_netbsd.go b/src/cmd/vendor/golang.org/x/sys/unix/types_netbsd.go
deleted file mode 100644
index 2dd4f9542c..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/types_netbsd.go
+++ /dev/null
@@ -1,289 +0,0 @@
-// 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.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define KERNEL
-#include <dirent.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/ptrace.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/sysctl.h>
-#include <sys/time.h>
-#include <sys/uio.h>
-#include <sys/un.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-type Stat_t C.struct_stat
-
-type Statfs_t C.struct_statfs
-
-type Flock_t C.struct_flock
-
-type Dirent C.struct_dirent
-
-type Fsid C.fsid_t
-
-// File system limits
-
-const (
-	PathMax = C.PATH_MAX
-)
-
-// Advice to Fadvise
-
-const (
-	FADV_NORMAL     = C.POSIX_FADV_NORMAL
-	FADV_RANDOM     = C.POSIX_FADV_RANDOM
-	FADV_SEQUENTIAL = C.POSIX_FADV_SEQUENTIAL
-	FADV_WILLNEED   = C.POSIX_FADV_WILLNEED
-	FADV_DONTNEED   = C.POSIX_FADV_DONTNEED
-	FADV_NOREUSE    = C.POSIX_FADV_NOREUSE
-)
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Ptrace requests
-
-const (
-	PTRACE_TRACEME = C.PT_TRACE_ME
-	PTRACE_CONT    = C.PT_CONTINUE
-	PTRACE_KILL    = C.PT_KILL
-)
-
-// Events (kqueue, kevent)
-
-type Kevent_t C.struct_kevent
-
-// Select
-
-type FdSet C.fd_set
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr         = C.sizeof_struct_if_msghdr
-	SizeofIfData           = C.sizeof_struct_if_data
-	SizeofIfaMsghdr        = C.sizeof_struct_ifa_msghdr
-	SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr
-	SizeofRtMsghdr         = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics        = C.sizeof_struct_rt_metrics
-)
-
-type IfMsghdr C.struct_if_msghdr
-
-type IfData C.struct_if_data
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type IfAnnounceMsghdr C.struct_if_announcemsghdr
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-type Mclpool C.struct_mclpool
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion = C.sizeof_struct_bpf_version
-	SizeofBpfStat    = C.sizeof_struct_bpf_stat
-	SizeofBpfProgram = C.sizeof_struct_bpf_program
-	SizeofBpfInsn    = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr     = C.sizeof_struct_bpf_hdr
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfHdr C.struct_bpf_hdr
-
-type BpfTimeval C.struct_bpf_timeval
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Winsize C.struct_winsize
-
-type Ptmget C.struct_ptmget
-
-// fchmodat-like syscalls.
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
-
-// Sysctl
-
-type Sysctlnode C.struct_sysctlnode
-
-// Uname
-
-type Utsname C.struct_utsname
-
-// Clockinfo
-
-const SizeofClockinfo = C.sizeof_struct_clockinfo
-
-type Clockinfo C.struct_clockinfo
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/types_openbsd.go b/src/cmd/vendor/golang.org/x/sys/unix/types_openbsd.go
deleted file mode 100644
index 8aafbe4469..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/types_openbsd.go
+++ /dev/null
@@ -1,282 +0,0 @@
-// 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.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define KERNEL
-#include <dirent.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/ptrace.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/uio.h>
-#include <sys/un.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <uvm/uvmexp.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-type Stat_t C.struct_stat
-
-type Statfs_t C.struct_statfs
-
-type Flock_t C.struct_flock
-
-type Dirent C.struct_dirent
-
-type Fsid C.fsid_t
-
-// File system limits
-
-const (
-	PathMax = C.PATH_MAX
-)
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Ptrace requests
-
-const (
-	PTRACE_TRACEME = C.PT_TRACE_ME
-	PTRACE_CONT    = C.PT_CONTINUE
-	PTRACE_KILL    = C.PT_KILL
-)
-
-// Events (kqueue, kevent)
-
-type Kevent_t C.struct_kevent
-
-// Select
-
-type FdSet C.fd_set
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr         = C.sizeof_struct_if_msghdr
-	SizeofIfData           = C.sizeof_struct_if_data
-	SizeofIfaMsghdr        = C.sizeof_struct_ifa_msghdr
-	SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr
-	SizeofRtMsghdr         = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics        = C.sizeof_struct_rt_metrics
-)
-
-type IfMsghdr C.struct_if_msghdr
-
-type IfData C.struct_if_data
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type IfAnnounceMsghdr C.struct_if_announcemsghdr
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-type Mclpool C.struct_mclpool
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion = C.sizeof_struct_bpf_version
-	SizeofBpfStat    = C.sizeof_struct_bpf_stat
-	SizeofBpfProgram = C.sizeof_struct_bpf_program
-	SizeofBpfInsn    = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr     = C.sizeof_struct_bpf_hdr
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfHdr C.struct_bpf_hdr
-
-type BpfTimeval C.struct_bpf_timeval
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Winsize C.struct_winsize
-
-// fchmodat-like syscalls.
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
-
-// Signal Sets
-
-type Sigset_t C.sigset_t
-
-// Uname
-
-type Utsname C.struct_utsname
-
-// Uvmexp
-
-const SizeofUvmexp = C.sizeof_struct_uvmexp
-
-type Uvmexp C.struct_uvmexp
-
-// Clockinfo
-
-const SizeofClockinfo = C.sizeof_struct_clockinfo
-
-type Clockinfo C.struct_clockinfo
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/types_solaris.go b/src/cmd/vendor/golang.org/x/sys/unix/types_solaris.go
deleted file mode 100644
index 2b716f9348..0000000000
--- a/src/cmd/vendor/golang.org/x/sys/unix/types_solaris.go
+++ /dev/null
@@ -1,266 +0,0 @@
-// 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.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define KERNEL
-// These defines ensure that builds done on newer versions of Solaris are
-// backwards-compatible with older versions of Solaris and
-// OpenSolaris-based derivatives.
-#define __USE_SUNOS_SOCKETS__          // msghdr
-#define __USE_LEGACY_PROTOTYPES__      // iovec
-#include <dirent.h>
-#include <fcntl.h>
-#include <netdb.h>
-#include <limits.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <termio.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/param.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/statvfs.h>
-#include <sys/time.h>
-#include <sys/times.h>
-#include <sys/types.h>
-#include <sys/utsname.h>
-#include <sys/un.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-#include <ustat.h>
-#include <utime.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-	PathMax        = C.PATH_MAX
-	MaxHostNameLen = C.MAXHOSTNAMELEN
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-type Timeval32 C.struct_timeval32
-
-type Tms C.struct_tms
-
-type Utimbuf C.struct_utimbuf
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-type Stat_t C.struct_stat
-
-type Flock_t C.struct_flock
-
-type Dirent C.struct_dirent
-
-// Filesystems
-
-type _Fsblkcnt_t C.fsblkcnt_t
-
-type Statvfs_t C.struct_statvfs
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Select
-
-type FdSet C.fd_set
-
-// Misc
-
-type Utsname C.struct_utsname
-
-type Ustat_t C.struct_ustat
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-	AT_SYMLINK_FOLLOW   = C.AT_SYMLINK_FOLLOW
-	AT_REMOVEDIR        = C.AT_REMOVEDIR
-	AT_EACCESS          = C.AT_EACCESS
-)
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr  = C.sizeof_struct_if_msghdr
-	SizeofIfData    = C.sizeof_struct_if_data
-	SizeofIfaMsghdr = C.sizeof_struct_ifa_msghdr
-	SizeofRtMsghdr  = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics = C.sizeof_struct_rt_metrics
-)
-
-type IfMsghdr C.struct_if_msghdr
-
-type IfData C.struct_if_data
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion = C.sizeof_struct_bpf_version
-	SizeofBpfStat    = C.sizeof_struct_bpf_stat
-	SizeofBpfProgram = C.sizeof_struct_bpf_program
-	SizeofBpfInsn    = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr     = C.sizeof_struct_bpf_hdr
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfTimeval C.struct_bpf_timeval
-
-type BpfHdr C.struct_bpf_hdr
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Termio C.struct_termio
-
-type Winsize C.struct_winsize
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
diff --git a/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/lostcancel/lostcancel.go b/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/lostcancel/lostcancel.go
index 5be1ef0d57..b5161836a5 100644
--- a/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/lostcancel/lostcancel.go
+++ b/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/lostcancel/lostcancel.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // Package lostcancel defines an Analyzer that checks for failure to
-// call a context cancellation function.
+// call a context cancelation function.
 package lostcancel
 
 import (
@@ -20,7 +20,7 @@ import (
 
 const Doc = `check cancel func returned by context.WithCancel is called
 
-The cancellation function returned by context.WithCancel, WithTimeout,
+The cancelation function returned by context.WithCancel, WithTimeout,
 and WithDeadline must be called or the new context will remain live
 until its parent context is cancelled.
 (The background context is never cancelled.)`
diff --git a/src/cmd/vendor/golang.org/x/tools/go/analysis/unitchecker/main.go b/src/cmd/vendor/golang.org/x/tools/go/analysis/unitchecker/main.go
deleted file mode 100644
index 844e8f3dac..0000000000
--- a/src/cmd/vendor/golang.org/x/tools/go/analysis/unitchecker/main.go
+++ /dev/null
@@ -1,64 +0,0 @@
-// +build ignore
-
-// This file provides an example command for static checkers
-// conforming to the golang.org/x/tools/go/analysis API.
-// It serves as a model for the behavior of the cmd/vet tool in $GOROOT.
-// Being based on the unitchecker driver, it must be run by go vet:
-//
-//   $ go build -o unitchecker main.go
-//   $ go vet -vettool=unitchecker my/project/...
-//
-// For a checker also capable of running standalone, use multichecker.
-package main
-
-import (
-	"golang.org/x/tools/go/analysis/unitchecker"
-
-	"golang.org/x/tools/go/analysis/passes/asmdecl"
-	"golang.org/x/tools/go/analysis/passes/assign"
-	"golang.org/x/tools/go/analysis/passes/atomic"
-	"golang.org/x/tools/go/analysis/passes/bools"
-	"golang.org/x/tools/go/analysis/passes/buildtag"
-	"golang.org/x/tools/go/analysis/passes/cgocall"
-	"golang.org/x/tools/go/analysis/passes/composite"
-	"golang.org/x/tools/go/analysis/passes/copylock"
-	"golang.org/x/tools/go/analysis/passes/httpresponse"
-	"golang.org/x/tools/go/analysis/passes/loopclosure"
-	"golang.org/x/tools/go/analysis/passes/lostcancel"
-	"golang.org/x/tools/go/analysis/passes/nilfunc"
-	"golang.org/x/tools/go/analysis/passes/printf"
-	"golang.org/x/tools/go/analysis/passes/shift"
-	"golang.org/x/tools/go/analysis/passes/stdmethods"
-	"golang.org/x/tools/go/analysis/passes/structtag"
-	"golang.org/x/tools/go/analysis/passes/tests"
-	"golang.org/x/tools/go/analysis/passes/unmarshal"
-	"golang.org/x/tools/go/analysis/passes/unreachable"
-	"golang.org/x/tools/go/analysis/passes/unsafeptr"
-	"golang.org/x/tools/go/analysis/passes/unusedresult"
-)
-
-func main() {
-	unitchecker.Main(
-		asmdecl.Analyzer,
-		assign.Analyzer,
-		atomic.Analyzer,
-		bools.Analyzer,
-		buildtag.Analyzer,
-		cgocall.Analyzer,
-		composite.Analyzer,
-		copylock.Analyzer,
-		httpresponse.Analyzer,
-		loopclosure.Analyzer,
-		lostcancel.Analyzer,
-		nilfunc.Analyzer,
-		printf.Analyzer,
-		shift.Analyzer,
-		stdmethods.Analyzer,
-		structtag.Analyzer,
-		tests.Analyzer,
-		unmarshal.Analyzer,
-		unreachable.Analyzer,
-		unsafeptr.Analyzer,
-		unusedresult.Analyzer,
-	)
-}