bump gocui

go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/creack/pty v1.1.11
 	github.com/fatih/color v1.9.0
 	github.com/fsnotify/fsnotify v1.4.7
-	github.com/gdamore/tcell/v2 v2.1.0 // indirect
+	github.com/gdamore/tcell/v2 v2.2.0 // indirect
 	github.com/go-errors/errors v1.1.1
 	github.com/go-logfmt/logfmt v0.5.0 // indirect
 	github.com/golang-collections/collections v0.0.0-20130729185459-604e922904d3
@@ -20,15 +20,15 @@ require (
 	github.com/imdario/mergo v0.3.11
 	github.com/integrii/flaggy v1.4.0
 	github.com/jesseduffield/go-git/v5 v5.1.2-0.20201006095850-341962be15a4
-	github.com/jesseduffield/gocui v0.3.1-0.20210329130738-e026850021e3
+	github.com/jesseduffield/gocui v0.3.1-0.20210329131148-bcc4dcd991ff
-	github.com/jesseduffield/termbox-go v0.0.0-20200823212418-a2289ed6aafe
+	github.com/jesseduffield/termbox-go v0.0.0-20200823212418-a2289ed6aafe // indirect
 	github.com/jesseduffield/yaml v2.1.0+incompatible
 	github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0
 	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
 	github.com/kylelemons/godebug v1.1.0 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-colorable v0.1.7 // indirect
-	github.com/mattn/go-runewidth v0.0.10
+	github.com/mattn/go-runewidth v0.0.12
 	github.com/mgutz/str v1.2.0
 	github.com/onsi/ginkgo v1.10.3 // indirect
 	github.com/onsi/gomega v1.7.1 // indirect
@@ -39,7 +39,8 @@ require (
 	github.com/stretchr/testify v1.4.0
 	golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0 // indirect
 	golang.org/x/net v0.0.0-20201002202402-0a1ea396d57c // indirect
-	golang.org/x/sys v0.0.0-20210217105451-b926d437f341 // indirect
+	golang.org/x/sys v0.0.0-20210331175145-43e1dd70ce54 // indirect
+	golang.org/x/term v0.0.0-20210317153231-de623e64d2a6 // indirect
 	golang.org/x/text v0.3.5 // indirect
 )
 

go.sum

@@ -37,6 +37,8 @@ github.com/gdamore/tcell/v2 v2.0.0 h1:GRWG8aLfWAlekj9Q6W29bVvkHENc6hp79XOqG4AWDO
 github.com/gdamore/tcell/v2 v2.0.0/go.mod h1:vSVL/GV5mCSlPC6thFP5kfOFdM9MGZcalipmpTxTgQA=
 github.com/gdamore/tcell/v2 v2.1.0 h1:UnSmozHgBkQi2PGsFr+rpdXuAPRRucMegpQp3Z3kDro=
 github.com/gdamore/tcell/v2 v2.1.0/go.mod h1:vSVL/GV5mCSlPC6thFP5kfOFdM9MGZcalipmpTxTgQA=
+github.com/gdamore/tcell/v2 v2.2.0 h1:vSyEgKwraXPSOkvCk7IwOSyX+Pv3V2cV9CikJMXg4U4=
+github.com/gdamore/tcell/v2 v2.2.0/go.mod h1:cTTuF84Dlj/RqmaCIV5p4w8uG1zWdk0SF6oBpwHp4fU=
 github.com/gliderlabs/ssh v0.2.2 h1:6zsha5zo/TWhRhwqCD3+EarCAgZ2yN28ipRnGPnwkI0=
 github.com/gliderlabs/ssh v0.2.2/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
 github.com/go-errors/errors v1.0.2/go.mod h1:psDX2osz5VnTOnFWbDeWwS7yejl+uV3FEWEp4lssFEs=
@@ -86,6 +88,8 @@ github.com/jesseduffield/gocui v0.3.1-0.20210329125502-e830abf4b73a h1:RVYf2MA/R
 github.com/jesseduffield/gocui v0.3.1-0.20210329125502-e830abf4b73a/go.mod h1:2RtZznzYKt8RLRwvFiSkXjU0Ei8WwHdubgnlaYH47dw=
 github.com/jesseduffield/gocui v0.3.1-0.20210329130738-e026850021e3 h1:UDiArPlzkg+8mmNjhUOamQoyiTSzQUGIpOsu5hCRJVI=
 github.com/jesseduffield/gocui v0.3.1-0.20210329130738-e026850021e3/go.mod h1:2RtZznzYKt8RLRwvFiSkXjU0Ei8WwHdubgnlaYH47dw=
+github.com/jesseduffield/gocui v0.3.1-0.20210329131148-bcc4dcd991ff h1:fTt3EzLtpsc7OA7A6Vd6JVnlxvcAy7cY9lmN9yzDwSs=
+github.com/jesseduffield/gocui v0.3.1-0.20210329131148-bcc4dcd991ff/go.mod h1:QWq79xplEoyhQO+dgpk3sojjTVRKjQklyTlzm5nC5Kg=
 github.com/jesseduffield/termbox-go v0.0.0-20200823212418-a2289ed6aafe h1:qsVhCf2RFyyKIUe/+gJblbCpXMUki9rZrHuEctg6M/E=
 github.com/jesseduffield/termbox-go v0.0.0-20200823212418-a2289ed6aafe/go.mod h1:anMibpZtqNxjDbxrcDEAwSdaJ37vyUeM1f/M4uekib4=
 github.com/jesseduffield/yaml v2.1.0+incompatible h1:HWQJ1gIv2zHKbDYNp0Jwjlj24K8aqpFHnMCynY1EpmE=
@@ -129,6 +133,8 @@ github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/Qd
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mattn/go-runewidth v0.0.10 h1:CoZ3S2P7pvtP45xOtBw+/mDL2z0RKI576gSkzRRpdGg=
 github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
+github.com/mattn/go-runewidth v0.0.12 h1:Y41i/hVW3Pgwr8gV+J23B9YEY0zxjptBuCWEaxmAOow=
+github.com/mattn/go-runewidth v0.0.12/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
 github.com/mgutz/str v1.2.0 h1:4IzWSdIz9qPQWLfKZ0rJcV0jcUDpxvP4JVZ4GXQyvSw=
 github.com/mgutz/str v1.2.0/go.mod h1:w1v0ofgLaJdoD0HpQ3fycxKD1WtxpjSo151pK/31q6w=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
@@ -193,10 +199,17 @@ golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527 h1:uYVVQ9WP/Ds2ROhcaGPeIdVq0RIXVLwsHlnvJ+cT1So=
 golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c h1:VwygUrnw9jn88c4u8GD3rZQbqrP/tgas88tPUbBxQrk=
 golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210217105451-b926d437f341 h1:2/QtM1mL37YmcsT8HaDNHDgTqqFVw+zr8UzMiBVLzYU=
 golang.org/x/sys v0.0.0-20210217105451-b926d437f341/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210331175145-43e1dd70ce54 h1:rF3Ohx8DRyl8h2zw9qojyLHLhrJpEMgyPOImREEryf0=
+golang.org/x/sys v0.0.0-20210331175145-43e1dd70ce54/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf h1:MZ2shdL+ZM/XzY3ZGOnh4Nlpnxz5GSOhOmtHo3iPU6M=
+golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210317153231-de623e64d2a6 h1:EC6+IGYTjPpRfv9a2b/6Puw0W+hLtAhkV1tPsXhutqs=
+golang.org/x/term v0.0.0-20210317153231-de623e64d2a6/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=

vendor/github.com/gdamore/tcell/v2/README.adoc

@@ -28,8 +28,8 @@ Version 1.x remains available using the import `github.com/gdamore/tcell`.
 * https://github.com/gdamore/gomatrix[gomatrix] - converted from Termbox
 * https://github.com/zyedidia/micro/[micro] - lightweight text editor with syntax-highlighting and themes
 * https://github.com/viktomas/godu[godu] - simple golang utility helping to discover large files/folders.
-* https://github.com/rivo/tview[tview] - rich interactive widgets for terminal UIs
+* https://github.com/rivo/tview/[tview] - rich interactive widgets for terminal UIs
-* https://github.com/marcusolsson/tui-go[tui-go] - UI library for terminal apps (_deprecated_)
+* https://github.com/awesome-gocui/gocui[awesome gocui] - Go Console User Interface
 * https://github.com/rgm3/gomandelbrot[gomandelbrot] - Mandelbrot!
 * https://github.com/senorprogrammer/wtf[WTF]- Personal information dashboard for your terminal
 * https://github.com/browsh-org/browsh[browsh] - A fully-modern text-based browser, rendering to TTY and browsers (https://www.youtube.com/watch?v=HZq86XfBoRo[video])
@@ -48,6 +48,9 @@ Version 1.x remains available using the import `github.com/gdamore/tcell`.
 * https://github.com/Bios-Marcel/memoryalike[memoryalike] - A game where you have to memorize runes and hit their respective keys
 * https://github.com/gokcehan/lf[lf] - Terminal file manager
 * https://github.com/bunyk/gokeybr[gokeybr] - program that helps to deliberately practice your typing.
+* https://github.com/jbaramidze/gonano[gonano] - CLI test editor
+* https://github.com/tmountain/uchess[uchess] - A UCI chess client for your terminal
+* https://github.com/a-h/min[min] - A Gemini browser
 
 == Pure Go Terminfo Database
 
@@ -246,9 +249,7 @@ platforms (e.g. AIX) may need to be added.  Pull requests are welcome!
 
 === Windows
 
-Windows console mode applications are supported.  Unfortunately _mintty_
+Windows console mode applications are supported.
-and other _cygwin_ style applications are not supported, and are
-unlikely to be supportable due to limitations in their design.
 
 Modern console applications like ConEmu and the Windows 10 terminal,
 support all the good features (resize, mouse tracking, etc.)

vendor/github.com/gdamore/tcell/v2/console_win.go

@@ -1,6 +1,6 @@
 // +build windows
 
-// Copyright 2020 The TCell Authors
+// Copyright 2021 The TCell Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use file except in compliance with the License.
@@ -53,6 +53,10 @@ type cScreen struct {
 
 	finiOnce sync.Once
 
+	mouseEnabled bool
+	wg           sync.WaitGroup
+	stopQ        chan struct{}
+
 	sync.Mutex
 }
 
@@ -176,7 +180,7 @@ func (s *cScreen) Init() error {
 	// ConEmu handling of colors and scrolling when in terminal
 	// mode is extremely problematic at the best.  The color
 	// palette will scroll even though characters do not, when
-	// emiting stuff for the last character.  In the future we
+	// emitting stuff for the last character.  In the future we
 	// might change this to look at specific versions of ConEmu
 	// if they fix the bug.
 	if os.Getenv("ConEmuPID") != "" {
@@ -189,16 +193,6 @@ func (s *cScreen) Init() error {
 		s.truecolor = true
 	}
 
-	cf, _, e := procCreateEvent.Call(
-		uintptr(0),
-		uintptr(1),
-		uintptr(0),
-		uintptr(0))
-	if cf == uintptr(0) {
-		return e
-	}
-	s.cancelflag = syscall.Handle(cf)
-
 	s.Lock()
 
 	s.curx = -1
@@ -229,12 +223,9 @@ func (s *cScreen) Init() error {
 		s.setOutMode(0)
 	}
 
-	s.clearScreen(s.style)
-	s.hideCursor()
 	s.Unlock()
-	go s.scanInput()
 
-	return nil
+	return s.engage()
 }
 
 func (s *cScreen) CharacterSet() string {
@@ -242,20 +233,36 @@ func (s *cScreen) CharacterSet() string {
 	return "UTF-16LE"
 }
 
-func (s *cScreen) EnableMouse() {
+func (s *cScreen) EnableMouse(...MouseFlags) {
-	s.setInMode(modeResizeEn | modeMouseEn | modeExtndFlg)
+	s.Lock()
+	s.mouseEnabled = true
+	s.enableMouse(true)
+	s.Unlock()
 }
 
 func (s *cScreen) DisableMouse() {
-	s.setInMode(modeResizeEn | modeExtndFlg)
+	s.Lock()
+	s.mouseEnabled = false
+	s.enableMouse(false)
+	s.Unlock()
 }
 
+func (s *cScreen) enableMouse(on bool) {
+	if on {
+		s.setInMode(modeResizeEn | modeMouseEn | modeExtndFlg)
+	} else {
+		s.setInMode(modeResizeEn | modeExtndFlg)
+	}
+}
+
+// Windows lacks bracketed paste (for now)
+
 func (s *cScreen) EnablePaste() {}
 
 func (s *cScreen) DisablePaste() {}
 
 func (s *cScreen) Fini() {
-	s.finiOnce.Do(s.finish)
+	s.disengage()
 }
 
 func (s *cScreen) finish() {
@@ -271,8 +278,8 @@ func (s *cScreen) finish() {
 	s.setInMode(s.oimode)
 	s.setOutMode(s.oomode)
 	s.setBufferSize(int(s.oscreen.size.x), int(s.oscreen.size.y))
-	s.clearScreen(StyleDefault)
+	s.clearScreen(StyleDefault, false)
-	s.setCursorPos(0, 0)
+	s.setCursorPos(0, 0, false)
 	procSetConsoleTextAttribute.Call(
 		uintptr(s.out),
 		uintptr(s.mapStyle(StyleDefault)))
@@ -286,6 +293,68 @@ func (s *cScreen) finish() {
 	syscall.Close(s.out)
 }
 
+func (s *cScreen) disengage() {
+	s.Lock()
+	stopQ := s.stopQ
+	if stopQ == nil {
+		s.Unlock()
+		return
+	}
+	s.stopQ = nil
+	procSetEvent.Call(uintptr(s.cancelflag))
+	close(stopQ)
+	s.Unlock()
+
+	s.wg.Wait()
+
+	s.setInMode(s.oimode)
+	s.setOutMode(s.oomode)
+	s.setBufferSize(int(s.oscreen.size.x), int(s.oscreen.size.y))
+	s.clearScreen(StyleDefault, false)
+	s.setCursorPos(0, 0, false)
+	procSetConsoleTextAttribute.Call(
+		uintptr(s.out),
+		uintptr(s.mapStyle(StyleDefault)))
+}
+
+func (s *cScreen) engage() error {
+	s.Lock()
+	defer s.Unlock()
+	if s.stopQ != nil {
+		return errors.New("already engaged")
+	}
+	s.stopQ = make(chan struct{})
+	cf, _, e := procCreateEvent.Call(
+		uintptr(0),
+		uintptr(1),
+		uintptr(0),
+		uintptr(0))
+	if cf == uintptr(0) {
+		return e
+	}
+	s.cancelflag = syscall.Handle(cf)
+	s.enableMouse(s.mouseEnabled)
+
+	if s.vten {
+		s.setOutMode(modeVtOutput | modeNoAutoNL | modeCookedOut)
+	} else {
+		s.setOutMode(0)
+	}
+
+	s.clearScreen(s.style, s.vten)
+	s.hideCursor()
+
+	s.cells.Invalidate()
+	s.hideCursor()
+	s.resize()
+	s.draw()
+	s.doCursor()
+
+	s.wg.Add(1)
+	go s.scanInput(s.stopQ)
+	return nil
+}
+
 func (s *cScreen) PostEventWait(ev Event) {
 	s.evch <- ev
 }
@@ -367,7 +436,7 @@ func (s *cScreen) doCursor() {
 	if x < 0 || y < 0 || x >= s.w || y >= s.h {
 		s.hideCursor()
 	} else {
-		s.setCursorPos(x, y)
+		s.setCursorPos(x, y, s.vten)
 		s.showCursor()
 	}
 }
@@ -691,10 +760,15 @@ func (s *cScreen) getConsoleInput() error {
 	return nil
 }
 
-func (s *cScreen) scanInput() {
+func (s *cScreen) scanInput(stopQ chan struct{}) {
+	defer s.wg.Done()
 	for {
+		select {
+		case <-stopQ:
+			return
+		default:
+		}
 		if e := s.getConsoleInput(); e != nil {
-			close(s.scandone)
 			return
 		}
 	}
@@ -843,7 +917,7 @@ func (s *cScreen) writeString(x, y int, style Style, ch []uint16) {
 	if len(ch) == 0 {
 		return
 	}
-	s.setCursorPos(x, y)
+	s.setCursorPos(x, y, s.vten)
 
 	if s.vten {
 		s.sendVtStyle(style)
@@ -859,7 +933,7 @@ func (s *cScreen) draw() {
 	// allocate a scratch line bit enough for no combining chars.
 	// if you have combining characters, you may pay for extra allocs.
 	if s.clear {
-		s.clearScreen(s.style)
+		s.clearScreen(s.style, s.vten)
 		s.clear = false
 		s.cells.Invalidate()
 	}
@@ -965,8 +1039,8 @@ func (s *cScreen) setCursorInfo(info *cursorInfo) {
 
 }
 
-func (s *cScreen) setCursorPos(x, y int) {
+func (s *cScreen) setCursorPos(x, y int, vtEnable bool) {
-	if s.vten {
+	if vtEnable {
 		// Note that the string is Y first.  Origin is 1,1.
 		s.emitVtString(fmt.Sprintf(vtCursorPos, y+1, x+1))
 	} else {
@@ -1028,15 +1102,15 @@ func (s *cScreen) Fill(r rune, style Style) {
 	s.Unlock()
 }
 
-func (s *cScreen) clearScreen(style Style) {
+func (s *cScreen) clearScreen(style Style, vtEnable bool) {
-	if s.vten {
+	if vtEnable {
 		s.sendVtStyle(style)
 		row := strings.Repeat(" ", s.w)
 		for y := 0; y < s.h; y++ {
-			s.setCursorPos(0, y)
+			s.setCursorPos(0, y, vtEnable)
 			s.emitVtString(row)
 		}
-		s.setCursorPos(0, 0)
+		s.setCursorPos(0, 0, vtEnable)
 
 	} else {
 		pos := coord{0, 0}
@@ -1185,3 +1259,12 @@ func (s *cScreen) Beep() error {
 	}
 	return nil
 }
+
+func (s *cScreen) Suspend() error {
+	s.disengage()
+	return nil
+}
+
+func (s *cScreen) Resume() error {
+	return s.engage()
+}

vendor/github.com/gdamore/tcell/v2/go.mod

@@ -5,7 +5,8 @@ go 1.12
 require (
 	github.com/gdamore/encoding v1.0.0
 	github.com/lucasb-eyer/go-colorful v1.0.3
-	github.com/mattn/go-runewidth v0.0.7
+	github.com/mattn/go-runewidth v0.0.10
-	golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756
+	golang.org/x/sys v0.0.0-20201119102817-f84b799fce68
+	golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf
 	golang.org/x/text v0.3.0
 )

vendor/github.com/gdamore/tcell/v2/go.sum

@@ -2,9 +2,15 @@ github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdk
 github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
 github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac=
 github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
-github.com/mattn/go-runewidth v0.0.7 h1:Ei8KR0497xHyKJPAv59M1dkC+rOZCMBJ+t3fZ+twI54=
+github.com/mattn/go-runewidth v0.0.10 h1:CoZ3S2P7pvtP45xOtBw+/mDL2z0RKI576gSkzRRpdGg=
-github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
+github.com/rivo/uniseg v0.1.0 h1:+2KBaVoUmb9XzDsrx/Ct0W/EYOSFf/nWTauy++DprtY=
+github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756 h1:9nuHUbU8dRnRRfj9KjWUVrJeoexdbeMjttk6Oh1rD10=
 golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 h1:nxC68pudNYkKU6jWhgrqdreuFiOQWj1Fs7T3VrH4Pjw=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf h1:MZ2shdL+ZM/XzY3ZGOnh4Nlpnxz5GSOhOmtHo3iPU6M=
+golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

vendor/github.com/gdamore/tcell/v2/nonblock_bsd.go

@@ -0,0 +1,50 @@
+// Copyright 2021 The TCell Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use file except in compliance with the License.
+// You may obtain a copy of the license at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build darwin dragonfly freebsd netbsd openbsd
+
+package tcell
+
+import (
+	"os"
+	"syscall"
+
+	"golang.org/x/sys/unix"
+)
+
+// BSD systems use TIOC style ioctls.
+
+// nonBlocking changes VMIN to 0, and VTIME to 1.  This basically ensures that
+// we can wake up the input loop.  We only want to do this if we are going to interrupt
+// that loop.  Normally we use VMIN 1 and VTIME 0, which ensures we pick up bytes when
+// they come but don't spin burning cycles.
+func (t *tScreen) nonBlocking(on bool) {
+	fd := int(os.Stdin.Fd())
+	tio, err := unix.IoctlGetTermios(fd, unix.TIOCGETA)
+	if err != nil {
+		return
+	}
+	if on {
+		tio.Cc[unix.VMIN] = 0
+		tio.Cc[unix.VTIME] = 0
+	} else {
+		// block for any output
+		tio.Cc[unix.VTIME] = 0
+		tio.Cc[unix.VMIN] = 1
+	}
+
+	_ = syscall.SetNonblock(fd, on)
+	// We want to set this *right now*.
+	_ = unix.IoctlSetTermios(fd, unix.TIOCSETA, tio)
+}

vendor/github.com/gdamore/tcell/v2/nonblock_stub.go

@@ -0,0 +1,21 @@
+// Copyright 2021 The TCell Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use file except in compliance with the License.
+// You may obtain a copy of the license at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build plan9 windows js
+
+package tcell
+
+func (t *tScreen) nonBlocking(on bool) error {
+	return nil
+}

vendor/github.com/gdamore/tcell/v2/nonblock_unix.go

@@ -0,0 +1,52 @@
+// Copyright 2021 The TCell Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use file except in compliance with the License.
+// You may obtain a copy of the license at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux aix zos solaris
+
+package tcell
+
+import (
+	"os"
+	"syscall"
+
+	"golang.org/x/sys/unix"
+)
+
+// NB: We might someday wish to move Windows to this model.   However,
+// that would probably mean sacrificing some of the richer key reporting
+// that we can obtain with the console API present on Windows.
+
+// nonBlocking changes VMIN to 0, and VTIME to 1.  This basically ensures that
+// we can wake up the input loop.  We only want to do this if we are going to interrupt
+// that loop.  Normally we use VMIN 1 and VTIME 0, which ensures we pick up bytes when
+// they come but don't spin burning cycles.
+func (t *tScreen) nonBlocking(on bool) {
+	fd := int(os.Stdin.Fd())
+	tio, err := unix.IoctlGetTermios(fd, unix.TCGETS)
+	if err != nil {
+		return
+	}
+	if on {
+		tio.Cc[unix.VMIN] = 0
+		tio.Cc[unix.VTIME] = 0
+	} else {
+		// block for any output
+		tio.Cc[unix.VTIME] = 0
+		tio.Cc[unix.VMIN] = 1
+	}
+
+	_ = syscall.SetNonblock(fd, on)
+	// We want to set this *right now*.
+	_ = unix.IoctlSetTermios(fd, unix.TCSETS, tio)
+}

vendor/github.com/gdamore/tcell/v2/screen.go

@@ -1,4 +1,4 @@
-// Copyright 2019 The TCell Authors
+// Copyright 2021 The TCell Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use file except in compliance with the License.
@@ -16,7 +16,7 @@ package tcell
 
 // Screen represents the physical (or emulated) screen.
 // This can be a terminal window or a physical console.  Platforms implement
-// this differerently.
+// this differently.
 type Screen interface {
 	// Init initializes the screen for use.
 	Init() error
@@ -88,6 +88,9 @@ type Screen interface {
 	// is dropped, and ErrEventQFull is returned.
 	PostEvent(ev Event) error
 
+	// Deprecated: PostEventWait is unsafe, and will be removed
+	// in the future.
+	//
 	// PostEventWait is like PostEvent, but if the queue is full, it
 	// blocks until there is space in the queue, making delivery
 	// reliable.  However, it is VERY important that this function
@@ -99,7 +102,9 @@ type Screen interface {
 	PostEventWait(ev Event)
 
 	// EnableMouse enables the mouse.  (If your terminal supports it.)
-	EnableMouse()
+	// If no flags are specified, then all events are reported, if the
+	// terminal supports them.
+	EnableMouse(...MouseFlags)
 
 	// DisableMouse disables the mouse.
 	DisableMouse()
@@ -200,6 +205,14 @@ type Screen interface {
 	// runes) is always true.
 	HasKey(Key) bool
 
+	// Suspend pauses input and output processing.  It also restores the
+	// terminal settings to what they were when the application started.
+	// This can be used to, for example, run a sub-shell.
+	Suspend() error
+
+	// Resume resumes after Suspend().
+	Resume() error
+
 	// Beep attempts to sound an OS-dependent audible alert and returns an error
 	// when unsuccessful.
 	Beep() error
@@ -217,3 +230,13 @@ func NewScreen() (Screen, error) {
 		return nil, e
 	}
 }
+
+// MouseFlags are options to modify the handling of mouse events.
+// Actual events can be or'd together.
+type MouseFlags int
+
+const (
+	MouseButtonEvents = MouseFlags(1) // Click events only
+	MouseDragEvents   = MouseFlags(2) // Click-drag events (includes button events)
+	MouseMotionEvents = MouseFlags(4) // All mouse events (includes click and drag events)
+)

vendor/github.com/gdamore/tcell/v2/simulation.go

@@ -1,4 +1,4 @@
-// Copyright 2020 The TCell Authors
+// Copyright 2021 The TCell Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use file except in compliance with the License.
@@ -314,7 +314,7 @@ func (s *simscreen) draw() {
 	s.showCursor()
 }
 
-func (s *simscreen) EnableMouse() {
+func (s *simscreen) EnableMouse(...MouseFlags) {
 	s.mouse = true
 }
 
@@ -520,3 +520,11 @@ func (s *simscreen) HasKey(Key) bool {
 func (s *simscreen) Beep() error {
 	return nil
 }
+
+func (s *simscreen) Suspend() error {
+	return nil
+}
+
+func (s *simscreen) Resume() error {
+	return nil
+}

vendor/github.com/gdamore/tcell/v2/terminfo/a/alacritty/term.go

@@ -36,7 +36,6 @@ func init() {
 		ExitAcs:      "\x1b(B",
 		StrikeThrough:"\x1b[9m",
 		Mouse:        "\x1b[<",
-		MouseMode:    "\x1b[?1006;1000%?%p1%{1}%=%th%el%;",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/dynamic/dynamic.go

@@ -1,4 +1,4 @@
-// Copyright 2020 The TCell Authors
+// Copyright 2021 The TCell Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use file except in compliance with the License.
@@ -394,26 +394,6 @@ func LoadTerminfo(name string) (*terminfo.Terminfo, string, error) {
 		t.SetFg = "\x1b[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m"
 	}
 
-	// If the kmous entry is present, then we need to record the
-	// the codes to enter and exit mouse mode.  Sadly, this is not
-	// part of the terminfo databases anywhere that I've found, but
-	// is an extension.  The escapedape codes are documented in the XTerm
-	// manual, and all terminals that have kmous are expected to
-	// use these same codes, unless explicitly configured otherwise
-	// vi XM.  Note that in any event, we only known how to parse either
-	// x11 or SGR mouse events -- if your terminal doesn't support one
-	// of these two forms, you maybe out of luck.
-	t.MouseMode = tc.getstr("XM")
-	if t.Mouse != "" && t.MouseMode == "" {
-		// we anticipate that all xterm mouse tracking compatible
-		// terminals understand mouse tracking (1000), but we hope
-		// that those that don't understand any-event tracking (1003)
-		// will at least ignore it.  Likewise we hope that terminals
-		// that don't understand SGR reporting (1006) just ignore it.
-		t.MouseMode = "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;" +
-			"\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c"
-	}
-
 	// We only support colors in ANSI 8 or 256 color mode.
 	if t.Colors < 8 || t.SetFg == "" {
 		t.Colors = 0

vendor/github.com/gdamore/tcell/v2/terminfo/g/gnome/term.go

@@ -36,7 +36,6 @@ func init() {
 		ExitAcs:      "\x0f",
 		EnableAcs:    "\x1b)0",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",
@@ -97,7 +96,6 @@ func init() {
 		ExitAcs:      "\x0f",
 		EnableAcs:    "\x1b)0",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/k/konsole/term.go

@@ -36,7 +36,6 @@ func init() {
 		EnableAcs:    "\x1b)0",
 		StrikeThrough:"\x1b[9m",
 		Mouse:        "\x1b[<",
-		MouseMode:    "\x1b[?1006;1000%?%p1%{1}%=%th%el%;",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",
@@ -97,7 +96,6 @@ func init() {
 		EnableAcs:    "\x1b)0",
 		StrikeThrough:"\x1b[9m",
 		Mouse:        "\x1b[<",
-		MouseMode:    "\x1b[?1006;1000%?%p1%{1}%=%th%el%;",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/k/kterm/term.go

@@ -31,7 +31,6 @@ func init() {
 		EnterAcs:     "\x1b(0",
 		ExitAcs:      "\x1b(B",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/l/linux/term.go

@@ -30,7 +30,6 @@ func init() {
 		ExitAcs:      "\x0f",
 		EnableAcs:    "\x1b)0",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/r/rxvt/term.go

@@ -35,7 +35,6 @@ func init() {
 		ExitAcs:      "\x0f",
 		EnableAcs:    "\x1b(B\x1b)0",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",
@@ -139,7 +138,6 @@ func init() {
 		ExitAcs:      "\x0f",
 		EnableAcs:    "\x1b(B\x1b)0",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",
@@ -243,7 +241,6 @@ func init() {
 		ExitAcs:      "\x0f",
 		EnableAcs:    "\x1b(B\x1b)0",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",
@@ -346,7 +343,6 @@ func init() {
 		EnterAcs:     "\x1b(0",
 		ExitAcs:      "\x1b(B",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",
@@ -426,7 +422,6 @@ func init() {
 		EnterAcs:     "\x1b(0",
 		ExitAcs:      "\x1b(B",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/s/screen/term.go

@@ -36,7 +36,6 @@ func init() {
 		ExitAcs:      "\x0f",
 		EnableAcs:    "\x1b(B\x1b)0",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1bM",
@@ -96,7 +95,6 @@ func init() {
 		ExitAcs:      "\x0f",
 		EnableAcs:    "\x1b(B\x1b)0",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1bM",

vendor/github.com/gdamore/tcell/v2/terminfo/s/simpleterm/term.go

@@ -37,7 +37,6 @@ func init() {
 		EnableAcs:    "\x1b)0",
 		StrikeThrough:"\x1b[9m",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",
@@ -101,7 +100,6 @@ func init() {
 		EnableAcs:    "\x1b)0",
 		StrikeThrough:"\x1b[9m",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/t/termite/term.go

@@ -33,7 +33,6 @@ func init() {
 		EnterAcs:     "\x1b(0",
 		ExitAcs:      "\x1b(B",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/t/tmux/term.go

@@ -38,7 +38,6 @@ func init() {
 		EnableAcs:     "\x1b(B\x1b)0",
 		StrikeThrough: "\x1b[9m",
 		Mouse:         "\x1b[M",
-		MouseMode:     "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:     "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:   "\b",
 		CursorUp1:     "\x1bM",
@@ -101,7 +100,6 @@ func init() {
 		EnableAcs:     "\x1b(B\x1b)0",
 		StrikeThrough: "\x1b[9m",
 		Mouse:         "\x1b[M",
-		MouseMode:     "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:     "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:   "\b",
 		CursorUp1:     "\x1bM",

vendor/github.com/gdamore/tcell/v2/terminfo/terminfo.go

@@ -150,7 +150,6 @@ type Terminfo struct {
 	KeyPrint     string // kprt
 	KeyCancel    string // kcan
 	Mouse        string // kmous
-	MouseMode    string // XM
 	AltChars     string // acsc
 	EnterAcs     string // smacs
 	ExitAcs      string // rmacs

vendor/github.com/gdamore/tcell/v2/terminfo/x/xfce/term.go

@@ -34,7 +34,6 @@ func init() {
 		ExitAcs:      "\x0f",
 		EnableAcs:    "\x1b)0",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/x/xterm/term.go

@@ -37,7 +37,6 @@ func init() {
 		ExitAcs:      "\x1b(B",
 		StrikeThrough:"\x1b[9m",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",
@@ -98,7 +97,6 @@ func init() {
 		ExitAcs:      "\x1b(B",
 		StrikeThrough:"\x1b[9m",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",
@@ -159,7 +157,6 @@ func init() {
 		ExitAcs:      "\x1b(B",
 		StrikeThrough:"\x1b[9m",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/x/xterm_kitty/term.go

@@ -35,7 +35,6 @@ func init() {
 		ExitAcs:      "\x1b(B",
 		StrikeThrough:"\x1b[9m",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/terminfo/x/xterm_termite/term.go

@@ -34,7 +34,6 @@ func init() {
 		EnterAcs:     "\x1b(0",
 		ExitAcs:      "\x1b(B",
 		Mouse:        "\x1b[M",
-		MouseMode:    "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
 		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
 		CursorBack1:  "\b",
 		CursorUp1:    "\x1b[A",

vendor/github.com/gdamore/tcell/v2/tscreen.go

@@ -1,4 +1,4 @@
-// Copyright 2020 The TCell Authors
+// Copyright 2021 The TCell Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use file except in compliance with the License.
@@ -24,6 +24,7 @@ import (
 	"time"
 	"unicode/utf8"
 
+	"golang.org/x/term"
 	"golang.org/x/text/transform"
 
 	"github.com/gdamore/tcell/v2/terminfo"
@@ -89,7 +90,6 @@ type tScreen struct {
 	evch         chan Event
 	sigwinch     chan os.Signal
 	quit         chan struct{}
-	indoneq      chan struct{}
 	keyexist     map[Key]bool
 	keycodes     map[string]*tKeyCode
 	keychan      chan []byte
@@ -101,7 +101,6 @@ type tScreen struct {
 	clear        bool
 	cursorx      int
 	cursory      int
-	tiosp        *termiosPrivate
 	wasbtn       bool
 	acs          map[rune]string
 	charset      string
@@ -116,13 +115,21 @@ type tScreen struct {
 	finiOnce     sync.Once
 	enablePaste  string
 	disablePaste string
+	saved        *term.State
+	stopQ        chan struct{}
+	wg           sync.WaitGroup
+	mouseFlags   MouseFlags
+	pasteEnabled bool
 
 	sync.Mutex
 }
 
 func (t *tScreen) Init() error {
+	if e := t.initialize(); e != nil {
+		return e
+	}
+
 	t.evch = make(chan Event, 10)
-	t.indoneq = make(chan struct{})
 	t.keychan = make(chan []byte, 10)
 	t.keytimer = time.NewTimer(time.Millisecond * 50)
 	t.charset = "UTF-8"
@@ -145,10 +152,6 @@ func (t *tScreen) Init() error {
 	if i, _ := strconv.Atoi(os.Getenv("COLUMNS")); i != 0 {
 		w = i
 	}
-	if e := t.termioInit(); e != nil {
-		return e
-	}
-
 	if t.ti.SetFgBgRGB != "" || t.ti.SetFgRGB != "" || t.ti.SetBgRGB != "" {
 		t.truecolor = true
 	}
@@ -182,8 +185,9 @@ func (t *tScreen) Init() error {
 	t.resize()
 	t.Unlock()
 
-	go t.mainLoop()
+	if err := t.engage(); err != nil {
-	go t.inputLoop()
+		return err
+	}
 
 	return nil
 }
@@ -291,7 +295,7 @@ func (t *tScreen) prepareBracketedPaste() {
 		t.disablePaste = t.ti.DisablePaste
 		t.prepareKey(keyPasteStart, t.ti.PasteStart)
 		t.prepareKey(keyPasteEnd, t.ti.PasteEnd)
-	} else if t.ti.MouseMode != "" {
+	} else if t.ti.Mouse != "" {
 		t.enablePaste = "\x1b[?2004h"
 		t.disablePaste = "\x1b[?2004l"
 		t.prepareKey(keyPasteStart, "\x1b[200~")
@@ -470,31 +474,8 @@ func (t *tScreen) Fini() {
 }
 
 func (t *tScreen) finish() {
-	t.Lock()
+	close(t.quit)
-	defer t.Unlock()
+	t.finalize()
-
-	ti := t.ti
-	t.cells.Resize(0, 0)
-	t.TPuts(ti.ShowCursor)
-	t.TPuts(ti.AttrOff)
-	t.TPuts(ti.Clear)
-	t.TPuts(ti.ExitCA)
-	t.TPuts(ti.ExitKeypad)
-	t.TPuts(ti.TParm(ti.MouseMode, 0))
-	t.TPuts(t.disablePaste)
-	t.curstyle = styleInvalid
-	t.clear = false
-	t.fini = true
-
-	select {
-	case <-t.quit:
-		// do nothing, already closed
-
-	default:
-		close(t.quit)
-	}
-
-	t.termioFini()
 }
 
 func (t *tScreen) SetStyle(style Style) {
@@ -834,24 +815,71 @@ func (t *tScreen) draw() {
 	_, _ = t.buf.WriteTo(t.out)
 }
 
-func (t *tScreen) EnableMouse() {
+func (t *tScreen) EnableMouse(flags ...MouseFlags) {
+	var f MouseFlags
+	flagsPresent := false
+	for _, flag := range flags {
+		f |= flag
+		flagsPresent = true
+	}
+	if !flagsPresent {
+		f = MouseMotionEvents
+	}
+
+	t.Lock()
+	t.mouseFlags = f
+	t.enableMouse(f)
+	t.Unlock()
+}
+
+func (t *tScreen) enableMouse(f MouseFlags) {
+	// Rather than using terminfo to find mouse escape sequences, we rely on the fact that
+	// pretty much *every* terminal that supports mouse tracking follows the
+	// XTerm standards (the modern ones).
 	if len(t.mouse) != 0 {
-		t.TPuts(t.ti.TParm(t.ti.MouseMode, 1))
+		// start by disabling all tracking.
+		t.TPuts("\x1b[?1000l\x1b[?1002l\x1b[?1003l\x1b[?1006l")
+		if f&MouseMotionEvents != 0 {
+			t.TPuts("\x1b[?1003h\x1b[?1006h")
+		} else if f&MouseDragEvents != 0 {
+			t.TPuts("\x1b[?1002h\x1b[?1006h")
+		} else if f&MouseButtonEvents != 0 {
+			t.TPuts("\x1b[?1000h\x1b[?1006h")
+		}
 	}
 }
 
 func (t *tScreen) DisableMouse() {
-	if len(t.mouse) != 0 {
+	t.Lock()
-		t.TPuts(t.ti.TParm(t.ti.MouseMode, 0))
+	t.mouseFlags = 0
-	}
+	t.enableMouse(0)
+	t.Unlock()
 }
 
 func (t *tScreen) EnablePaste() {
-	t.TPuts(t.enablePaste)
+	t.Lock()
+	t.pasteEnabled = true
+	t.enablePasting(true)
+	t.Unlock()
 }
 
 func (t *tScreen) DisablePaste() {
-	t.TPuts(t.disablePaste)
+	t.Lock()
+	t.pasteEnabled = false
+	t.enablePasting(false)
+	t.Unlock()
+}
+
+func (t *tScreen) enablePasting(on bool) {
+	var s string
+	if on {
+		s = t.enablePaste
+	} else {
+		s = t.disablePaste
+	}
+	if s != "" {
+		t.TPuts(s)
+	}
 }
 
 func (t *tScreen) Size() (int, int) {
@@ -1405,12 +1433,14 @@ func (t *tScreen) collectEventsFromInput(buf *bytes.Buffer, expire bool) []Event
 	return res
 }
 
-func (t *tScreen) mainLoop() {
+func (t *tScreen) mainLoop(stopQ chan struct{}) {
+	defer t.wg.Done()
 	buf := &bytes.Buffer{}
 	for {
 		select {
+		case <-stopQ:
+			return
 		case <-t.quit:
-			close(t.indoneq)
 			return
 		case <-t.sigwinch:
 			t.Lock()
@@ -1458,19 +1488,26 @@ func (t *tScreen) mainLoop() {
 	}
 }
 
-func (t *tScreen) inputLoop() {
+func (t *tScreen) inputLoop(stopQ chan struct{}) {
 
+	defer t.wg.Done()
 	for {
+		select {
+		case <-stopQ:
+			return
+		default:
+		}
 		chunk := make([]byte, 128)
 		n, e := t.in.Read(chunk)
 		switch e {
-		case io.EOF:
 		case nil:
 		default:
 			_ = t.PostEvent(NewEventError(e))
 			return
 		}
-		t.keychan <- chunk[:n]
+		if n > 0 {
+			t.keychan <- chunk[:n]
+		}
 	}
 }
 
@@ -1542,3 +1579,13 @@ func (t *tScreen) HasKey(k Key) bool {
 }
 
 func (t *tScreen) Resize(int, int, int, int) {}
+
+
+func (t *tScreen) Suspend() error {
+	t.disengage()
+	return nil
+}
+
+func (t *tScreen) Resume() error {
+	return t.engage()
+}

vendor/github.com/gdamore/tcell/v2/tscreen_bsd.go

@@ -1,121 +0,0 @@
-// +build freebsd netbsd openbsd dragonfly
-
-// Copyright 2019 The TCell Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use file except in compliance with the License.
-// You may obtain a copy of the license at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package tcell
-
-import (
-	"os"
-	"os/signal"
-	"syscall"
-	"unsafe"
-)
-
-type termiosPrivate syscall.Termios
-
-func (t *tScreen) termioInit() error {
-	var e error
-	var newtios termiosPrivate
-	var fd uintptr
-	var tios uintptr
-	var ioc uintptr
-	t.tiosp = &termiosPrivate{}
-
-	if t.in, e = os.OpenFile("/dev/tty", os.O_RDONLY, 0); e != nil {
-		goto failed
-	}
-	if t.out, e = os.OpenFile("/dev/tty", os.O_WRONLY, 0); e != nil {
-		goto failed
-	}
-
-	tios = uintptr(unsafe.Pointer(t.tiosp))
-	ioc = uintptr(syscall.TIOCGETA)
-	fd = uintptr(t.out.Fd())
-	if _, _, e1 := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioc, tios, 0, 0, 0); e1 != 0 {
-		e = e1
-		goto failed
-	}
-
-	newtios = *t.tiosp
-	newtios.Iflag &^= syscall.IGNBRK | syscall.BRKINT | syscall.PARMRK |
-		syscall.ISTRIP | syscall.INLCR | syscall.IGNCR |
-		syscall.ICRNL | syscall.IXON
-	newtios.Oflag &^= syscall.OPOST
-	newtios.Lflag &^= syscall.ECHO | syscall.ECHONL | syscall.ICANON |
-		syscall.ISIG | syscall.IEXTEN
-	newtios.Cflag &^= syscall.CSIZE | syscall.PARENB
-	newtios.Cflag |= syscall.CS8
-
-	tios = uintptr(unsafe.Pointer(&newtios))
-
-	ioc = uintptr(syscall.TIOCSETA)
-	if _, _, e1 := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioc, tios, 0, 0, 0); e1 != 0 {
-		e = e1
-		goto failed
-	}
-
-	signal.Notify(t.sigwinch, syscall.SIGWINCH)
-
-	if w, h, e := t.getWinSize(); e == nil && w != 0 && h != 0 {
-		t.cells.Resize(w, h)
-	}
-
-	return nil
-
-failed:
-	if t.in != nil {
-		t.in.Close()
-	}
-	if t.out != nil {
-		t.out.Close()
-	}
-	return e
-}
-
-func (t *tScreen) termioFini() {
-
-	signal.Stop(t.sigwinch)
-
-	<-t.indoneq
-
-	if t.out != nil {
-		fd := uintptr(t.out.Fd())
-		ioc := uintptr(syscall.TIOCSETAF)
-		tios := uintptr(unsafe.Pointer(t.tiosp))
-		syscall.Syscall6(syscall.SYS_IOCTL, fd, ioc, tios, 0, 0, 0)
-		t.out.Close()
-	}
-	if t.in != nil {
-		t.in.Close()
-	}
-}
-
-func (t *tScreen) getWinSize() (int, int, error) {
-
-	fd := uintptr(t.out.Fd())
-	dim := [4]uint16{}
-	dimp := uintptr(unsafe.Pointer(&dim))
-	ioc := uintptr(syscall.TIOCGWINSZ)
-	if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL,
-		fd, ioc, dimp, 0, 0, 0); err != 0 {
-		return -1, -1, err
-	}
-	return int(dim[1]), int(dim[0]), nil
-}
-
-func (t *tScreen) Beep() error {
-	t.writeString(string(byte(7)))
-	return nil
-}

vendor/github.com/gdamore/tcell/v2/tscreen_darwin.go

@@ -1,142 +0,0 @@
-// +build darwin
-
-// Copyright 2019 The TCell Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use file except in compliance with the License.
-// You may obtain a copy of the license at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package tcell
-
-// The Darwin system is *almost* a real BSD system, but it suffers from
-// a brain damaged TTY driver.  This TTY driver does not actually
-// wake up in poll() or similar calls, which means that we cannot reliably
-// shut down the terminal without resorting to obscene custom C code
-// and a dedicated poller thread.
-//
-// So instead, we do a best effort, and simply try to do the close in the
-// background.  Probably this will cause a leak of two goroutines and
-// maybe also the file descriptor, meaning that applications on Darwin
-// can't reinitialize the screen, but that's probably a very rare behavior,
-// and accepting that is the best of some very poor alternative options.
-//
-// Maybe someday Apple will fix there tty driver, but its been broken for
-// a long time (probably forever) so holding one's breath is contraindicated.
-
-import (
-	"os"
-	"os/signal"
-	"syscall"
-	"unsafe"
-)
-
-type termiosPrivate syscall.Termios
-
-func (t *tScreen) termioInit() error {
-	var e error
-	var newtios termiosPrivate
-	var fd uintptr
-	var tios uintptr
-	var ioc uintptr
-	t.tiosp = &termiosPrivate{}
-
-	if t.in, e = os.OpenFile("/dev/tty", os.O_RDONLY, 0); e != nil {
-		goto failed
-	}
-	if t.out, e = os.OpenFile("/dev/tty", os.O_WRONLY, 0); e != nil {
-		goto failed
-	}
-
-	tios = uintptr(unsafe.Pointer(t.tiosp))
-	ioc = uintptr(syscall.TIOCGETA)
-	fd = uintptr(t.out.Fd())
-	if _, _, e1 := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioc, tios, 0, 0, 0); e1 != 0 {
-		e = e1
-		goto failed
-	}
-
-	newtios = *t.tiosp
-	newtios.Iflag &^= syscall.IGNBRK | syscall.BRKINT | syscall.PARMRK |
-		syscall.ISTRIP | syscall.INLCR | syscall.IGNCR |
-		syscall.ICRNL | syscall.IXON
-	newtios.Oflag &^= syscall.OPOST
-	newtios.Lflag &^= syscall.ECHO | syscall.ECHONL | syscall.ICANON |
-		syscall.ISIG | syscall.IEXTEN
-	newtios.Cflag &^= syscall.CSIZE | syscall.PARENB
-	newtios.Cflag |= syscall.CS8
-
-	tios = uintptr(unsafe.Pointer(&newtios))
-
-	ioc = uintptr(syscall.TIOCSETA)
-	if _, _, e1 := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioc, tios, 0, 0, 0); e1 != 0 {
-		e = e1
-		goto failed
-	}
-
-	signal.Notify(t.sigwinch, syscall.SIGWINCH)
-
-	if w, h, e := t.getWinSize(); e == nil && w != 0 && h != 0 {
-		t.cells.Resize(w, h)
-	}
-
-	return nil
-
-failed:
-	if t.in != nil {
-		t.in.Close()
-	}
-	if t.out != nil {
-		t.out.Close()
-	}
-	return e
-}
-
-func (t *tScreen) termioFini() {
-
-	signal.Stop(t.sigwinch)
-
-	<-t.indoneq
-
-	if t.out != nil {
-		fd := uintptr(t.out.Fd())
-		ioc := uintptr(syscall.TIOCSETAF)
-		tios := uintptr(unsafe.Pointer(t.tiosp))
-		syscall.Syscall6(syscall.SYS_IOCTL, fd, ioc, tios, 0, 0, 0)
-		t.out.Close()
-	}
-
-	// See above -- we background this call which might help, but
-	// really the tty is probably open.
-
-	go func() {
-		if t.in != nil {
-			t.in.Close()
-		}
-	}()
-}
-
-func (t *tScreen) getWinSize() (int, int, error) {
-
-	fd := uintptr(t.out.Fd())
-	dim := [4]uint16{}
-	dimp := uintptr(unsafe.Pointer(&dim))
-	ioc := uintptr(syscall.TIOCGWINSZ)
-	if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL,
-		fd, ioc, dimp, 0, 0, 0); err != 0 {
-		return -1, -1, err
-	}
-	return int(dim[1]), int(dim[0]), nil
-}
-
-func (t *tScreen) Beep() error {
-	t.writeString(string(byte(7)))
-	return nil
-}

vendor/github.com/gdamore/tcell/v2/tscreen_linux.go

@@ -1,147 +0,0 @@
-// +build linux
-
-// Copyright 2019 The TCell Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use file except in compliance with the License.
-// You may obtain a copy of the license at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package tcell
-
-import (
-	"os"
-	"os/signal"
-	"strconv"
-	"syscall"
-
-	"golang.org/x/sys/unix"
-)
-
-type termiosPrivate struct {
-	tio *unix.Termios
-}
-
-func (t *tScreen) termioInit() error {
-	var e error
-	var raw *unix.Termios
-	var tio *unix.Termios
-
-	if t.in, e = os.OpenFile("/dev/tty", os.O_RDONLY, 0); e != nil {
-		goto failed
-	}
-	if t.out, e = os.OpenFile("/dev/tty", os.O_WRONLY, 0); e != nil {
-		goto failed
-	}
-
-	tio, e = unix.IoctlGetTermios(int(t.out.Fd()), unix.TCGETS)
-	if e != nil {
-		goto failed
-	}
-
-	t.tiosp = &termiosPrivate{tio: tio}
-
-	// make a local copy, to make it raw
-	raw = &unix.Termios{
-		Cflag: tio.Cflag,
-		Oflag: tio.Oflag,
-		Iflag: tio.Iflag,
-		Lflag: tio.Lflag,
-		Cc:    tio.Cc,
-	}
-	raw.Iflag &^= (unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP |
-		unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON)
-	raw.Oflag &^= unix.OPOST
-	raw.Lflag &^= (unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG |
-		unix.IEXTEN)
-	raw.Cflag &^= (unix.CSIZE | unix.PARENB)
-	raw.Cflag |= unix.CS8
-
-	// This is setup for blocking reads.  In the past we attempted to
-	// use non-blocking reads, but now a separate input loop and timer
-	// copes with the problems we had on some systems (BSD/Darwin)
-	// where close hung forever.
-	raw.Cc[unix.VMIN] = 1
-	raw.Cc[unix.VTIME] = 0
-
-	e = unix.IoctlSetTermios(int(t.out.Fd()), unix.TCSETS, raw)
-	if e != nil {
-		goto failed
-	}
-
-	signal.Notify(t.sigwinch, syscall.SIGWINCH)
-
-	if w, h, e := t.getWinSize(); e == nil && w != 0 && h != 0 {
-		t.cells.Resize(w, h)
-	}
-
-	return nil
-
-failed:
-	if t.in != nil {
-		t.in.Close()
-	}
-	if t.out != nil {
-		t.out.Close()
-	}
-	return e
-}
-
-func (t *tScreen) termioFini() {
-
-	signal.Stop(t.sigwinch)
-
-	<-t.indoneq
-
-	if t.out != nil && t.tiosp != nil {
-		unix.IoctlSetTermios(int(t.out.Fd()), unix.TCSETSF, t.tiosp.tio)
-		t.out.Close()
-	}
-
-	if t.in != nil {
-		t.in.Close()
-	}
-}
-
-func (t *tScreen) getWinSize() (int, int, error) {
-
-	wsz, err := unix.IoctlGetWinsize(int(t.out.Fd()), unix.TIOCGWINSZ)
-	if err != nil {
-		return -1, -1, err
-	}
-	cols := int(wsz.Col)
-	rows := int(wsz.Row)
-	if cols == 0 {
-		colsEnv := os.Getenv("COLUMNS")
-		if colsEnv != "" {
-			if cols, err = strconv.Atoi(colsEnv); err != nil {
-				return -1, -1, err
-			}
-		} else {
-			cols = t.ti.Columns
-		}
-	}
-	if rows == 0 {
-		rowsEnv := os.Getenv("LINES")
-		if rowsEnv != "" {
-			if rows, err = strconv.Atoi(rowsEnv); err != nil {
-				return -1, -1, err
-			}
-		} else {
-			rows = t.ti.Lines
-		}
-	}
-	return cols, rows, nil
-}
-
-func (t *tScreen) Beep() error {
-	t.writeString(string(byte(7)))
-	return nil
-}

vendor/github.com/gdamore/tcell/v2/tscreen_solaris.go

@@ -1,122 +0,0 @@
-// +build solaris illumos
-
-// Copyright 2020 The TCell Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use file except in compliance with the License.
-// You may obtain a copy of the license at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package tcell
-
-import (
-	"os"
-	"os/signal"
-	"syscall"
-
-	"golang.org/x/sys/unix"
-)
-
-type termiosPrivate struct {
-	tio *unix.Termios
-}
-
-func (t *tScreen) termioInit() error {
-	var e error
-	var raw *unix.Termios
-	var tio *unix.Termios
-
-	if t.in, e = os.OpenFile("/dev/tty", os.O_RDONLY, 0); e != nil {
-		goto failed
-	}
-	if t.out, e = os.OpenFile("/dev/tty", os.O_WRONLY, 0); e != nil {
-		goto failed
-	}
-
-	tio, e = unix.IoctlGetTermios(int(t.out.Fd()), unix.TCGETS)
-	if e != nil {
-		goto failed
-	}
-
-	t.tiosp = &termiosPrivate{tio: tio}
-
-	// make a local copy, to make it raw
-	raw = &unix.Termios{
-		Cflag: tio.Cflag,
-		Oflag: tio.Oflag,
-		Iflag: tio.Iflag,
-		Lflag: tio.Lflag,
-		Cc:    tio.Cc,
-	}
-
-	raw.Iflag &^= (unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.INLCR |
-		unix.IGNCR | unix.ICRNL | unix.IXON)
-	raw.Oflag &^= unix.OPOST
-	raw.Lflag &^= (unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN)
-	raw.Cflag &^= (unix.CSIZE | unix.PARENB)
-	raw.Cflag |= unix.CS8
-
-	// This is setup for blocking reads.  In the past we attempted to
-	// use non-blocking reads, but now a separate input loop and timer
-	// copes with the problems we had on some systems (BSD/Darwin)
-	// where close hung forever.
-	raw.Cc[unix.VMIN] = 1
-	raw.Cc[unix.VTIME] = 0
-
-	e = unix.IoctlSetTermios(int(t.out.Fd()), unix.TCSETS, raw)
-	if e != nil {
-		goto failed
-	}
-
-	signal.Notify(t.sigwinch, syscall.SIGWINCH)
-
-	if w, h, e := t.getWinSize(); e == nil && w != 0 && h != 0 {
-		t.cells.Resize(w, h)
-	}
-
-	return nil
-
-failed:
-	if t.in != nil {
-		t.in.Close()
-	}
-	if t.out != nil {
-		t.out.Close()
-	}
-	return e
-}
-
-func (t *tScreen) termioFini() {
-
-	signal.Stop(t.sigwinch)
-
-	<-t.indoneq
-
-	if t.out != nil && t.tiosp != nil {
-		unix.IoctlSetTermios(int(t.out.Fd()), unix.TCSETSF, t.tiosp.tio)
-		t.out.Close()
-	}
-	if t.in != nil {
-		t.in.Close()
-	}
-}
-
-func (t *tScreen) getWinSize() (int, int, error) {
-	wsz, err := unix.IoctlGetWinsize(int(t.out.Fd()), unix.TIOCGWINSZ)
-	if err != nil {
-		return -1, -1, err
-	}
-	return int(wsz.Col), int(wsz.Row), nil
-}
-
-func (t *tScreen) Beep() error {
-	t.writeString(string(byte(7)))
-	return nil
-}

vendor/github.com/gdamore/tcell/v2/tscreen_stub.go

@@ -1,6 +1,6 @@
-// +build nacl plan9
+// +build js plan9 windows
 
-// Copyright 2015 The TCell Authors
+// Copyright 2021 The TCell Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use file except in compliance with the License.
@@ -16,15 +16,22 @@
 
 package tcell
 
-// This stub file is for systems that have no termios.
+// NB: We might someday wish to move Windows to this model.   However,
+// that would probably mean sacrificing some of the richer key reporting
+// that we can obtain with the console API present on Windows.
 
-type termiosPrivate struct{}
+func (t *tScreen) engage() error {
-
-func (t *tScreen) termioInit() error {
 	return ErrNoScreen
 }
 
-func (t *tScreen) termioFini() {
+func (t *tScreen) disengage() {
+}
+
+func (t *tScreen) initialize() error {
+	return ErrNoScreen
+}
+
+func (t *tScreen) finalize() {
 }
 
 func (t *tScreen) getWinSize() (int, int, error) {

vendor/github.com/gdamore/tcell/v2/tscreen_unix.go

@@ -0,0 +1,123 @@
+// Copyright 2021 The TCell Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use file except in compliance with the License.
+// You may obtain a copy of the license at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
+
+package tcell
+
+import (
+	"errors"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"golang.org/x/term"
+)
+
+// engage is used to place the terminal in raw mode and establish screen size, etc.
+// Thing of this is as tcell "engaging" the clutch, as it's going to be driving the
+// terminal interface.
+func (t *tScreen) engage() error {
+	t.Lock()
+	defer t.Unlock()
+	if t.stopQ != nil {
+		return errors.New("already engaged")
+	}
+	if _, err := term.MakeRaw(int(t.in.Fd())); err != nil {
+		return err
+	}
+	if w, h, err := term.GetSize(int(t.in.Fd())); err == nil && w != 0 && h != 0 {
+		t.cells.Resize(w, h)
+	}
+	stopQ := make(chan struct{})
+	t.stopQ = stopQ
+	t.nonBlocking(false)
+	t.enableMouse(t.mouseFlags)
+	t.enablePasting(t.pasteEnabled)
+	signal.Notify(t.sigwinch, syscall.SIGWINCH)
+
+	t.wg.Add(2)
+	go t.inputLoop(stopQ)
+	go t.mainLoop(stopQ)
+	return nil
+}
+
+// disengage is used to release the terminal back to support from the caller.
+// Think of this as tcell disengaging the clutch, so that another application
+// can take over the terminal interface.  This restores the TTY mode that was
+// present when the application was first started.
+func (t *tScreen) disengage() {
+
+	t.Lock()
+	t.nonBlocking(true)
+	stopQ := t.stopQ
+	t.stopQ = nil
+	close(stopQ)
+	t.Unlock()
+
+	// wait for everything to shut down
+	t.wg.Wait()
+
+	signal.Stop(t.sigwinch)
+
+	// put back normal blocking mode
+	t.nonBlocking(false)
+
+	// shutdown the screen and disable special modes (e.g. mouse and bracketed paste)
+	ti := t.ti
+	t.cells.Resize(0, 0)
+	t.TPuts(ti.ShowCursor)
+	t.TPuts(ti.AttrOff)
+	t.TPuts(ti.Clear)
+	t.TPuts(ti.ExitCA)
+	t.TPuts(ti.ExitKeypad)
+	t.enableMouse(0)
+	t.enablePasting(false)
+
+	// restore the termios that we were started with
+	_ = term.Restore(int(t.in.Fd()), t.saved)
+
+}
+
+// initialize is used at application startup, and sets up the initial values
+// including file descriptors used for terminals and saving the initial state
+// so that it can be restored when the application terminates.
+func (t *tScreen) initialize() error {
+	var err error
+	t.out = os.Stdout
+	t.in = os.Stdin
+	t.saved, err = term.GetState(int(os.Stdin.Fd()))
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// finalize is used to at application shutdown, and restores the terminal
+// to it's initial state.  It should not be called more than once.
+func (t *tScreen) finalize() {
+
+	t.disengage()
+}
+
+// getWinSize is called to obtain the terminal dimensions.
+func (t *tScreen) getWinSize() (int, int, error) {
+	return term.GetSize(int(t.in.Fd()))
+}
+
+// Beep emits a beep to the terminal.
+func (t *tScreen) Beep() error {
+	t.writeString(string(byte(7)))
+	return nil
+}

vendor/github.com/gdamore/tcell/v2/tscreen_windows.go

@@ -1,44 +0,0 @@
-// +build windows
-
-// Copyright 2015 The TCell Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use file except in compliance with the License.
-// You may obtain a copy of the license at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package tcell
-
-// On Windows we don't have support for termios.  We probably could, and
-// may should, in a cygwin type environment.  Its not clear how to make
-// this all work nicely with both cygwin and Windows console, so we
-// decline to do so here.
-
-func (t *tScreen) termioInit() error {
-	return ErrNoScreen
-}
-
-func (t *tScreen) termioFini() {
-	return
-}
-
-func (t *tScreen) getWinSize() (int, int, error) {
-	return 0, 0, ErrNoScreen
-}
-
-func (t *tScreen) getCharset() string {
-	return "UTF-16LE"
-}
-
-func (t *tScreen) Beep() error {
-	return ErrNoScreen
-}
-
-type termiosPrivate struct{}

vendor/github.com/mattn/go-runewidth/runewidth.go

@@ -12,8 +12,14 @@ var (
 	// EastAsianWidth will be set true if the current locale is CJK
 	EastAsianWidth bool
 
+	// StrictEmojiNeutral should be set false if handle broken fonts
+	StrictEmojiNeutral bool = true
+
 	// DefaultCondition is a condition in current locale
-	DefaultCondition = &Condition{}
+	DefaultCondition = &Condition{
+		EastAsianWidth:     false,
+		StrictEmojiNeutral: true,
+	}
 )
 
 func init() {
@@ -83,26 +89,52 @@ var nonprint = table{
 
 // Condition have flag EastAsianWidth whether the current locale is CJK or not.
 type Condition struct {
-	EastAsianWidth bool
+	EastAsianWidth     bool
+	StrictEmojiNeutral bool
 }
 
 // NewCondition return new instance of Condition which is current locale.
 func NewCondition() *Condition {
 	return &Condition{
-		EastAsianWidth: EastAsianWidth,
+		EastAsianWidth:     EastAsianWidth,
+		StrictEmojiNeutral: StrictEmojiNeutral,
 	}
 }
 
 // RuneWidth returns the number of cells in r.
 // See http://www.unicode.org/reports/tr11/
 func (c *Condition) RuneWidth(r rune) int {
-	switch {
+	// optimized version, verified by TestRuneWidthChecksums()
-	case r < 0 || r > 0x10FFFF || inTables(r, nonprint, combining, notassigned):
+	if !c.EastAsianWidth {
-		return 0
+		switch {
-	case (c.EastAsianWidth && IsAmbiguousWidth(r)) || inTables(r, doublewidth):
+		case r < 0x20 || r > 0x10FFFF:
-		return 2
+			return 0
-	default:
+		case (r >= 0x7F && r <= 0x9F) || r == 0xAD: // nonprint
-		return 1
+			return 0
+		case r < 0x300:
+			return 1
+		case inTable(r, narrow):
+			return 1
+		case inTables(r, nonprint, combining):
+			return 0
+		case inTable(r, doublewidth):
+			return 2
+		default:
+			return 1
+		}
+	} else {
+		switch {
+		case r < 0 || r > 0x10FFFF || inTables(r, nonprint, combining):
+			return 0
+		case inTable(r, narrow):
+			return 1
+		case inTables(r, ambiguous, doublewidth):
+			return 2
+		case !c.StrictEmojiNeutral && inTables(r, ambiguous, emoji, narrow):
+			return 2
+		default:
+			return 1
+		}
 	}
 }
 

vendor/github.com/mattn/go-runewidth/runewidth_table.go

@@ -124,8 +124,10 @@ var ambiguous = table{
 	{0x1F18F, 0x1F190}, {0x1F19B, 0x1F1AC}, {0xE0100, 0xE01EF},
 	{0xF0000, 0xFFFFD}, {0x100000, 0x10FFFD},
 }
-var notassigned = table{
+var narrow = table{
-	{0x27E6, 0x27ED}, {0x2985, 0x2986},
+	{0x0020, 0x007E}, {0x00A2, 0x00A3}, {0x00A5, 0x00A6},
+	{0x00AC, 0x00AC}, {0x00AF, 0x00AF}, {0x27E6, 0x27ED},
+	{0x2985, 0x2986},
 }
 
 var neutral = table{

vendor/golang.org/x/sys/cpu/cpu_aix.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build aix
 // +build aix
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_gc_arm64.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build gc
 // +build gc
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_gc_s390x.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build gc
 // +build gc
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_gc_x86.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build (386 || amd64 || amd64p32) && gc
 // +build 386 amd64 amd64p32
 // +build gc
 

vendor/golang.org/x/sys/cpu/cpu_gccgo_arm64.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build gccgo
 // +build gccgo
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_gccgo_s390x.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build gccgo
 // +build gccgo
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build (386 || amd64 || amd64p32) && gccgo
 // +build 386 amd64 amd64p32
 // +build gccgo
 

vendor/golang.org/x/sys/cpu/cpu_linux.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !386 && !amd64 && !amd64p32 && !arm64
 // +build !386,!amd64,!amd64p32,!arm64
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_linux_mips64x.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build linux && (mips64 || mips64le)
 // +build linux
 // +build mips64 mips64le
 

vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build linux && !arm && !arm64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !s390x
 // +build linux,!arm,!arm64,!mips64,!mips64le,!ppc64,!ppc64le,!s390x
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_linux_ppc64x.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build linux && (ppc64 || ppc64le)
 // +build linux
 // +build ppc64 ppc64le
 

vendor/golang.org/x/sys/cpu/cpu_mips64x.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build mips64 || mips64le
 // +build mips64 mips64le
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_mipsx.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build mips || mipsle
 // +build mips mipsle
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_other_arm.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !linux && arm
 // +build !linux,arm
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_other_arm64.go

@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !linux,!netbsd
+//go:build !linux && !netbsd && arm64
-// +build arm64
+// +build !linux,!netbsd,arm64
 
 package cpu
 

vendor/golang.org/x/sys/cpu/cpu_other_mips64x.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !linux && (mips64 || mips64le)
 // +build !linux
 // +build mips64 mips64le
 

vendor/golang.org/x/sys/cpu/cpu_ppc64x.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build ppc64 || ppc64le
 // +build ppc64 ppc64le
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_riscv64.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build riscv64
 // +build riscv64
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_wasm.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build wasm
 // +build wasm
 
 package cpu

vendor/golang.org/x/sys/cpu/cpu_x86.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build 386 || amd64 || amd64p32
 // +build 386 amd64 amd64p32
 
 package cpu

vendor/golang.org/x/sys/cpu/syscall_aix_gccgo.go

@@ -8,8 +8,8 @@
 // Morever, this file will be used during the building of
 // gccgo's libgo and thus must not used a CGo method.
 
-// +build aix
+//go:build aix && gccgo
-// +build gccgo
+// +build aix,gccgo
 
 package cpu
 

vendor/golang.org/x/sys/cpu/syscall_aix_ppc64_gc.go

@@ -6,8 +6,8 @@
 // system call on AIX without depending on x/sys/unix.
 // (See golang.org/issue/32102)
 
-// +build aix,ppc64
+//go:build aix && ppc64 && gc
-// +build gc
+// +build aix,ppc64,gc
 
 package cpu
 

vendor/golang.org/x/sys/plan9/asm.s

@@ -0,0 +1,8 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+
+TEXT ·use(SB),NOSPLIT,$0
+	RET

vendor/golang.org/x/sys/plan9/asm_plan9_386.s

@@ -2,28 +2,29 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build gc
-
 #include "textflag.h"
 
 //
-// System call support for 386, Darwin
+// System call support for 386, Plan 9
 //
 
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.
 
-TEXT	·Syscall(SB),NOSPLIT,$0-28
+TEXT	·Syscall(SB),NOSPLIT,$0-32
 	JMP	syscall·Syscall(SB)
 
-TEXT	·Syscall6(SB),NOSPLIT,$0-40
+TEXT	·Syscall6(SB),NOSPLIT,$0-44
 	JMP	syscall·Syscall6(SB)
 
-TEXT	·Syscall9(SB),NOSPLIT,$0-52
-	JMP	syscall·Syscall9(SB)
-
 TEXT ·RawSyscall(SB),NOSPLIT,$0-28
 	JMP	syscall·RawSyscall(SB)
 
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
 	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·seek(SB),NOSPLIT,$0-36
+	JMP	syscall·seek(SB)
+
+TEXT ·exit(SB),NOSPLIT,$4-4
+	JMP	syscall·exit(SB)

vendor/golang.org/x/sys/plan9/asm_plan9_amd64.s

@@ -2,28 +2,29 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build gc
-
 #include "textflag.h"
 
 //
-// System call support for AMD64, FreeBSD
+// System call support for amd64, Plan 9
 //
 
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.
 
-TEXT	·Syscall(SB),NOSPLIT,$0-56
+TEXT	·Syscall(SB),NOSPLIT,$0-64
 	JMP	syscall·Syscall(SB)
 
-TEXT	·Syscall6(SB),NOSPLIT,$0-80
+TEXT	·Syscall6(SB),NOSPLIT,$0-88
 	JMP	syscall·Syscall6(SB)
 
-TEXT	·Syscall9(SB),NOSPLIT,$0-104
-	JMP	syscall·Syscall9(SB)
-
 TEXT ·RawSyscall(SB),NOSPLIT,$0-56
 	JMP	syscall·RawSyscall(SB)
 
 TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
 	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·seek(SB),NOSPLIT,$0-56
+	JMP	syscall·seek(SB)
+
+TEXT ·exit(SB),NOSPLIT,$8-8
+	JMP	syscall·exit(SB)

vendor/golang.org/x/sys/plan9/asm_plan9_arm.s

@@ -2,28 +2,24 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build gc
-
 #include "textflag.h"
 
-//
+// System call support for plan9 on arm
-// System call support for 386, NetBSD
-//
 
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.
 
-TEXT	·Syscall(SB),NOSPLIT,$0-28
+TEXT ·Syscall(SB),NOSPLIT,$0-32
 	JMP	syscall·Syscall(SB)
 
-TEXT	·Syscall6(SB),NOSPLIT,$0-40
+TEXT ·Syscall6(SB),NOSPLIT,$0-44
 	JMP	syscall·Syscall6(SB)
 
-TEXT	·Syscall9(SB),NOSPLIT,$0-52
-	JMP	syscall·Syscall9(SB)
-
 TEXT ·RawSyscall(SB),NOSPLIT,$0-28
 	JMP	syscall·RawSyscall(SB)
 
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
 	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·seek(SB),NOSPLIT,$0-36
+	JMP	syscall·exit(SB)

vendor/golang.org/x/sys/plan9/const_plan9.go

@@ -0,0 +1,70 @@
+package plan9
+
+// Plan 9 Constants
+
+// Open modes
+const (
+	O_RDONLY  = 0
+	O_WRONLY  = 1
+	O_RDWR    = 2
+	O_TRUNC   = 16
+	O_CLOEXEC = 32
+	O_EXCL    = 0x1000
+)
+
+// Rfork flags
+const (
+	RFNAMEG  = 1 << 0
+	RFENVG   = 1 << 1
+	RFFDG    = 1 << 2
+	RFNOTEG  = 1 << 3
+	RFPROC   = 1 << 4
+	RFMEM    = 1 << 5
+	RFNOWAIT = 1 << 6
+	RFCNAMEG = 1 << 10
+	RFCENVG  = 1 << 11
+	RFCFDG   = 1 << 12
+	RFREND   = 1 << 13
+	RFNOMNT  = 1 << 14
+)
+
+// Qid.Type bits
+const (
+	QTDIR    = 0x80
+	QTAPPEND = 0x40
+	QTEXCL   = 0x20
+	QTMOUNT  = 0x10
+	QTAUTH   = 0x08
+	QTTMP    = 0x04
+	QTFILE   = 0x00
+)
+
+// Dir.Mode bits
+const (
+	DMDIR    = 0x80000000
+	DMAPPEND = 0x40000000
+	DMEXCL   = 0x20000000
+	DMMOUNT  = 0x10000000
+	DMAUTH   = 0x08000000
+	DMTMP    = 0x04000000
+	DMREAD   = 0x4
+	DMWRITE  = 0x2
+	DMEXEC   = 0x1
+)
+
+const (
+	STATMAX    = 65535
+	ERRMAX     = 128
+	STATFIXLEN = 49
+)
+
+// Mount and bind flags
+const (
+	MREPL   = 0x0000
+	MBEFORE = 0x0001
+	MAFTER  = 0x0002
+	MORDER  = 0x0003
+	MCREATE = 0x0004
+	MCACHE  = 0x0010
+	MMASK   = 0x0017
+)

vendor/golang.org/x/sys/plan9/dir_plan9.go

@@ -0,0 +1,212 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Plan 9 directory marshalling. See intro(5).
+
+package plan9
+
+import "errors"
+
+var (
+	ErrShortStat = errors.New("stat buffer too short")
+	ErrBadStat   = errors.New("malformed stat buffer")
+	ErrBadName   = errors.New("bad character in file name")
+)
+
+// A Qid represents a 9P server's unique identification for a file.
+type Qid struct {
+	Path uint64 // the file server's unique identification for the file
+	Vers uint32 // version number for given Path
+	Type uint8  // the type of the file (plan9.QTDIR for example)
+}
+
+// A Dir contains the metadata for a file.
+type Dir struct {
+	// system-modified data
+	Type uint16 // server type
+	Dev  uint32 // server subtype
+
+	// file data
+	Qid    Qid    // unique id from server
+	Mode   uint32 // permissions
+	Atime  uint32 // last read time
+	Mtime  uint32 // last write time
+	Length int64  // file length
+	Name   string // last element of path
+	Uid    string // owner name
+	Gid    string // group name
+	Muid   string // last modifier name
+}
+
+var nullDir = Dir{
+	Type: ^uint16(0),
+	Dev:  ^uint32(0),
+	Qid: Qid{
+		Path: ^uint64(0),
+		Vers: ^uint32(0),
+		Type: ^uint8(0),
+	},
+	Mode:   ^uint32(0),
+	Atime:  ^uint32(0),
+	Mtime:  ^uint32(0),
+	Length: ^int64(0),
+}
+
+// Null assigns special "don't touch" values to members of d to
+// avoid modifying them during plan9.Wstat.
+func (d *Dir) Null() { *d = nullDir }
+
+// Marshal encodes a 9P stat message corresponding to d into b
+//
+// If there isn't enough space in b for a stat message, ErrShortStat is returned.
+func (d *Dir) Marshal(b []byte) (n int, err error) {
+	n = STATFIXLEN + len(d.Name) + len(d.Uid) + len(d.Gid) + len(d.Muid)
+	if n > len(b) {
+		return n, ErrShortStat
+	}
+
+	for _, c := range d.Name {
+		if c == '/' {
+			return n, ErrBadName
+		}
+	}
+
+	b = pbit16(b, uint16(n)-2)
+	b = pbit16(b, d.Type)
+	b = pbit32(b, d.Dev)
+	b = pbit8(b, d.Qid.Type)
+	b = pbit32(b, d.Qid.Vers)
+	b = pbit64(b, d.Qid.Path)
+	b = pbit32(b, d.Mode)
+	b = pbit32(b, d.Atime)
+	b = pbit32(b, d.Mtime)
+	b = pbit64(b, uint64(d.Length))
+	b = pstring(b, d.Name)
+	b = pstring(b, d.Uid)
+	b = pstring(b, d.Gid)
+	b = pstring(b, d.Muid)
+
+	return n, nil
+}
+
+// UnmarshalDir decodes a single 9P stat message from b and returns the resulting Dir.
+//
+// If b is too small to hold a valid stat message, ErrShortStat is returned.
+//
+// If the stat message itself is invalid, ErrBadStat is returned.
+func UnmarshalDir(b []byte) (*Dir, error) {
+	if len(b) < STATFIXLEN {
+		return nil, ErrShortStat
+	}
+	size, buf := gbit16(b)
+	if len(b) != int(size)+2 {
+		return nil, ErrBadStat
+	}
+	b = buf
+
+	var d Dir
+	d.Type, b = gbit16(b)
+	d.Dev, b = gbit32(b)
+	d.Qid.Type, b = gbit8(b)
+	d.Qid.Vers, b = gbit32(b)
+	d.Qid.Path, b = gbit64(b)
+	d.Mode, b = gbit32(b)
+	d.Atime, b = gbit32(b)
+	d.Mtime, b = gbit32(b)
+
+	n, b := gbit64(b)
+	d.Length = int64(n)
+
+	var ok bool
+	if d.Name, b, ok = gstring(b); !ok {
+		return nil, ErrBadStat
+	}
+	if d.Uid, b, ok = gstring(b); !ok {
+		return nil, ErrBadStat
+	}
+	if d.Gid, b, ok = gstring(b); !ok {
+		return nil, ErrBadStat
+	}
+	if d.Muid, b, ok = gstring(b); !ok {
+		return nil, ErrBadStat
+	}
+
+	return &d, nil
+}
+
+// pbit8 copies the 8-bit number v to b and returns the remaining slice of b.
+func pbit8(b []byte, v uint8) []byte {
+	b[0] = byte(v)
+	return b[1:]
+}
+
+// pbit16 copies the 16-bit number v to b in little-endian order and returns the remaining slice of b.
+func pbit16(b []byte, v uint16) []byte {
+	b[0] = byte(v)
+	b[1] = byte(v >> 8)
+	return b[2:]
+}
+
+// pbit32 copies the 32-bit number v to b in little-endian order and returns the remaining slice of b.
+func pbit32(b []byte, v uint32) []byte {
+	b[0] = byte(v)
+	b[1] = byte(v >> 8)
+	b[2] = byte(v >> 16)
+	b[3] = byte(v >> 24)
+	return b[4:]
+}
+
+// pbit64 copies the 64-bit number v to b in little-endian order and returns the remaining slice of b.
+func pbit64(b []byte, v uint64) []byte {
+	b[0] = byte(v)
+	b[1] = byte(v >> 8)
+	b[2] = byte(v >> 16)
+	b[3] = byte(v >> 24)
+	b[4] = byte(v >> 32)
+	b[5] = byte(v >> 40)
+	b[6] = byte(v >> 48)
+	b[7] = byte(v >> 56)
+	return b[8:]
+}
+
+// pstring copies the string s to b, prepending it with a 16-bit length in little-endian order, and
+// returning the remaining slice of b..
+func pstring(b []byte, s string) []byte {
+	b = pbit16(b, uint16(len(s)))
+	n := copy(b, s)
+	return b[n:]
+}
+
+// gbit8 reads an 8-bit number from b and returns it with the remaining slice of b.
+func gbit8(b []byte) (uint8, []byte) {
+	return uint8(b[0]), b[1:]
+}
+
+// gbit16 reads a 16-bit number in little-endian order from b and returns it with the remaining slice of b.
+func gbit16(b []byte) (uint16, []byte) {
+	return uint16(b[0]) | uint16(b[1])<<8, b[2:]
+}
+
+// gbit32 reads a 32-bit number in little-endian order from b and returns it with the remaining slice of b.
+func gbit32(b []byte) (uint32, []byte) {
+	return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24, b[4:]
+}
+
+// gbit64 reads a 64-bit number in little-endian order from b and returns it with the remaining slice of b.
+func gbit64(b []byte) (uint64, []byte) {
+	lo := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
+	hi := uint32(b[4]) | uint32(b[5])<<8 | uint32(b[6])<<16 | uint32(b[7])<<24
+	return uint64(lo) | uint64(hi)<<32, b[8:]
+}
+
+// gstring reads a string from b, prefixed with a 16-bit length in little-endian order.
+// It returns the string with the remaining slice of b and a boolean. If the length is
+// greater than the number of bytes in b, the boolean will be false.
+func gstring(b []byte) (string, []byte, bool) {
+	n, b := gbit16(b)
+	if int(n) > len(b) {
+		return "", b, false
+	}
+	return string(b[:n]), b[n:], true
+}

vendor/golang.org/x/sys/plan9/env_plan9.go

@@ -0,0 +1,31 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Plan 9 environment variables.
+
+package plan9
+
+import (
+	"syscall"
+)
+
+func Getenv(key string) (value string, found bool) {
+	return syscall.Getenv(key)
+}
+
+func Setenv(key, value string) error {
+	return syscall.Setenv(key, value)
+}
+
+func Clearenv() {
+	syscall.Clearenv()
+}
+
+func Environ() []string {
+	return syscall.Environ()
+}
+
+func Unsetenv(key string) error {
+	return syscall.Unsetenv(key)
+}

vendor/golang.org/x/sys/plan9/errors_plan9.go

@@ -0,0 +1,50 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package plan9
+
+import "syscall"
+
+// Constants
+const (
+	// Invented values to support what package os expects.
+	O_CREAT    = 0x02000
+	O_APPEND   = 0x00400
+	O_NOCTTY   = 0x00000
+	O_NONBLOCK = 0x00000
+	O_SYNC     = 0x00000
+	O_ASYNC    = 0x00000
+
+	S_IFMT   = 0x1f000
+	S_IFIFO  = 0x1000
+	S_IFCHR  = 0x2000
+	S_IFDIR  = 0x4000
+	S_IFBLK  = 0x6000
+	S_IFREG  = 0x8000
+	S_IFLNK  = 0xa000
+	S_IFSOCK = 0xc000
+)
+
+// Errors
+var (
+	EINVAL       = syscall.NewError("bad arg in system call")
+	ENOTDIR      = syscall.NewError("not a directory")
+	EISDIR       = syscall.NewError("file is a directory")
+	ENOENT       = syscall.NewError("file does not exist")
+	EEXIST       = syscall.NewError("file already exists")
+	EMFILE       = syscall.NewError("no free file descriptors")
+	EIO          = syscall.NewError("i/o error")
+	ENAMETOOLONG = syscall.NewError("file name too long")
+	EINTR        = syscall.NewError("interrupted")
+	EPERM        = syscall.NewError("permission denied")
+	EBUSY        = syscall.NewError("no free devices")
+	ETIMEDOUT    = syscall.NewError("connection timed out")
+	EPLAN9       = syscall.NewError("not supported by plan 9")
+
+	// The following errors do not correspond to any
+	// Plan 9 system messages. Invented to support
+	// what package os and others expect.
+	EACCES       = syscall.NewError("access permission denied")
+	EAFNOSUPPORT = syscall.NewError("address family not supported by protocol")
+)

vendor/golang.org/x/sys/plan9/mkall.sh

@@ -0,0 +1,150 @@
+#!/usr/bin/env bash
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# The plan9 package provides access to the raw system call
+# interface of the underlying operating system.  Porting Go to
+# a new architecture/operating system combination requires
+# some manual effort, though there are tools that automate
+# much of the process.  The auto-generated files have names
+# beginning with z.
+#
+# This script runs or (given -n) prints suggested commands to generate z files
+# for the current system.  Running those commands is not automatic.
+# This script is documentation more than anything else.
+#
+# * asm_${GOOS}_${GOARCH}.s
+#
+# This hand-written assembly file implements system call dispatch.
+# There are three entry points:
+#
+# 	func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
+# 	func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
+# 	func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
+#
+# The first and second are the standard ones; they differ only in
+# how many arguments can be passed to the kernel.
+# The third is for low-level use by the ForkExec wrapper;
+# unlike the first two, it does not call into the scheduler to
+# let it know that a system call is running.
+#
+# * syscall_${GOOS}.go
+#
+# This hand-written Go file implements system calls that need
+# special handling and lists "//sys" comments giving prototypes
+# for ones that can be auto-generated.  Mksyscall reads those
+# comments to generate the stubs.
+#
+# * syscall_${GOOS}_${GOARCH}.go
+#
+# Same as syscall_${GOOS}.go except that it contains code specific
+# to ${GOOS} on one particular architecture.
+#
+# * types_${GOOS}.c
+#
+# This hand-written C file includes standard C headers and then
+# creates typedef or enum names beginning with a dollar sign
+# (use of $ in variable names is a gcc extension).  The hardest
+# part about preparing this file is figuring out which headers to
+# include and which symbols need to be #defined to get the
+# actual data structures that pass through to the kernel system calls.
+# Some C libraries present alternate versions for binary compatibility
+# and translate them on the way in and out of system calls, but
+# there is almost always a #define that can get the real ones.
+# See types_darwin.c and types_linux.c for examples.
+#
+# * zerror_${GOOS}_${GOARCH}.go
+#
+# This machine-generated file defines the system's error numbers,
+# error strings, and signal numbers.  The generator is "mkerrors.sh".
+# Usually no arguments are needed, but mkerrors.sh will pass its
+# arguments on to godefs.
+#
+# * zsyscall_${GOOS}_${GOARCH}.go
+#
+# Generated by mksyscall.pl; see syscall_${GOOS}.go above.
+#
+# * zsysnum_${GOOS}_${GOARCH}.go
+#
+# Generated by mksysnum_${GOOS}.
+#
+# * ztypes_${GOOS}_${GOARCH}.go
+#
+# Generated by godefs; see types_${GOOS}.c above.
+
+GOOSARCH="${GOOS}_${GOARCH}"
+
+# defaults
+mksyscall="go run mksyscall.go"
+mkerrors="./mkerrors.sh"
+zerrors="zerrors_$GOOSARCH.go"
+mksysctl=""
+zsysctl="zsysctl_$GOOSARCH.go"
+mksysnum=
+mktypes=
+run="sh"
+
+case "$1" in
+-syscalls)
+	for i in zsyscall*go
+	do
+		sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
+		rm _$i
+	done
+	exit 0
+	;;
+-n)
+	run="cat"
+	shift
+esac
+
+case "$#" in
+0)
+	;;
+*)
+	echo 'usage: mkall.sh [-n]' 1>&2
+	exit 2
+esac
+
+case "$GOOSARCH" in
+_* | *_ | _)
+	echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
+	exit 1
+	;;
+plan9_386)
+	mkerrors=
+	mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,386"
+	mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
+	mktypes="XXX"
+	;;
+plan9_amd64)
+	mkerrors=
+	mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,amd64"
+	mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
+	mktypes="XXX"
+	;;
+plan9_arm)
+	mkerrors=
+	mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,arm"
+	mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
+	mktypes="XXX"
+	;;
+*)
+	echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
+	exit 1
+	;;
+esac
+
+(
+	if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
+	case "$GOOS" in
+	plan9)
+		syscall_goos="syscall_$GOOS.go"
+		if [ -n "$mksyscall" ]; then echo "$mksyscall $syscall_goos |gofmt >zsyscall_$GOOSARCH.go"; fi
+		;;
+	esac
+	if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
+	if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
+	if [ -n "$mktypes" ]; then echo "$mktypes types_$GOOS.go |gofmt >ztypes_$GOOSARCH.go"; fi
+) | $run

vendor/golang.org/x/sys/plan9/mkerrors.sh

@@ -0,0 +1,246 @@
+#!/usr/bin/env bash
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# Generate Go code listing errors and other #defined constant
+# values (ENAMETOOLONG etc.), by asking the preprocessor
+# about the definitions.
+
+unset LANG
+export LC_ALL=C
+export LC_CTYPE=C
+
+CC=${CC:-gcc}
+
+uname=$(uname)
+
+includes='
+#include <sys/types.h>
+#include <sys/file.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <errno.h>
+#include <sys/signal.h>
+#include <signal.h>
+#include <sys/resource.h>
+'
+
+ccflags="$@"
+
+# Write go tool cgo -godefs input.
+(
+	echo package plan9
+	echo
+	echo '/*'
+	indirect="includes_$(uname)"
+	echo "${!indirect} $includes"
+	echo '*/'
+	echo 'import "C"'
+	echo
+	echo 'const ('
+
+	# The gcc command line prints all the #defines
+	# it encounters while processing the input
+	echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
+	awk '
+		$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
+
+		$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next}  # 386 registers
+		$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
+		$2 ~ /^(SCM_SRCRT)$/ {next}
+		$2 ~ /^(MAP_FAILED)$/ {next}
+
+		$2 !~ /^ETH_/ &&
+		$2 !~ /^EPROC_/ &&
+		$2 !~ /^EQUIV_/ &&
+		$2 !~ /^EXPR_/ &&
+		$2 ~ /^E[A-Z0-9_]+$/ ||
+		$2 ~ /^B[0-9_]+$/ ||
+		$2 ~ /^V[A-Z0-9]+$/ ||
+		$2 ~ /^CS[A-Z0-9]/ ||
+		$2 ~ /^I(SIG|CANON|CRNL|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
+		$2 ~ /^IGN/ ||
+		$2 ~ /^IX(ON|ANY|OFF)$/ ||
+		$2 ~ /^IN(LCR|PCK)$/ ||
+		$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
+		$2 ~ /^C(LOCAL|READ)$/ ||
+		$2 == "BRKINT" ||
+		$2 == "HUPCL" ||
+		$2 == "PENDIN" ||
+		$2 == "TOSTOP" ||
+		$2 ~ /^PAR/ ||
+		$2 ~ /^SIG[^_]/ ||
+		$2 ~ /^O[CNPFP][A-Z]+[^_][A-Z]+$/ ||
+		$2 ~ /^IN_/ ||
+		$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
+		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
+		$2 == "ICMPV6_FILTER" ||
+		$2 == "SOMAXCONN" ||
+		$2 == "NAME_MAX" ||
+		$2 == "IFNAMSIZ" ||
+		$2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ ||
+		$2 ~ /^SYSCTL_VERS/ ||
+		$2 ~ /^(MS|MNT)_/ ||
+		$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
+		$2 ~ /^(O|F|FD|NAME|S|PTRACE|PT)_/ ||
+		$2 ~ /^LINUX_REBOOT_CMD_/ ||
+		$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
+		$2 !~ "NLA_TYPE_MASK" &&
+		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
+		$2 ~ /^SIOC/ ||
+		$2 ~ /^TIOC/ ||
+		$2 !~ "RTF_BITS" &&
+		$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
+		$2 ~ /^BIOC/ ||
+		$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
+		$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|NOFILE|STACK)|RLIM_INFINITY/ ||
+		$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
+		$2 ~ /^CLONE_[A-Z_]+/ ||
+		$2 !~ /^(BPF_TIMEVAL)$/ &&
+		$2 ~ /^(BPF|DLT)_/ ||
+		$2 !~ "WMESGLEN" &&
+		$2 ~ /^W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", $2, $2)}
+		$2 ~ /^__WCOREFLAG$/ {next}
+		$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
+
+		{next}
+	' | sort
+
+	echo ')'
+) >_const.go
+
+# Pull out the error names for later.
+errors=$(
+	echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
+	sort
+)
+
+# Pull out the signal names for later.
+signals=$(
+	echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
+	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
+	sort
+)
+
+# Again, writing regexps to a file.
+echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
+	sort >_error.grep
+echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
+	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
+	sort >_signal.grep
+
+echo '// mkerrors.sh' "$@"
+echo '// Code generated by the command above; DO NOT EDIT.'
+echo
+go tool cgo -godefs -- "$@" _const.go >_error.out
+cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
+echo
+echo '// Errors'
+echo 'const ('
+cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= Errno(\1)/'
+echo ')'
+
+echo
+echo '// Signals'
+echo 'const ('
+cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= Signal(\1)/'
+echo ')'
+
+# Run C program to print error and syscall strings.
+(
+	echo -E "
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <ctype.h>
+#include <string.h>
+#include <signal.h>
+
+#define nelem(x) (sizeof(x)/sizeof((x)[0]))
+
+enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
+
+int errors[] = {
+"
+	for i in $errors
+	do
+		echo -E '	'$i,
+	done
+
+	echo -E "
+};
+
+int signals[] = {
+"
+	for i in $signals
+	do
+		echo -E '	'$i,
+	done
+
+	# Use -E because on some systems bash builtin interprets \n itself.
+	echo -E '
+};
+
+static int
+intcmp(const void *a, const void *b)
+{
+	return *(int*)a - *(int*)b;
+}
+
+int
+main(void)
+{
+	int i, j, e;
+	char buf[1024], *p;
+
+	printf("\n\n// Error table\n");
+	printf("var errors = [...]string {\n");
+	qsort(errors, nelem(errors), sizeof errors[0], intcmp);
+	for(i=0; i<nelem(errors); i++) {
+		e = errors[i];
+		if(i > 0 && errors[i-1] == e)
+			continue;
+		strcpy(buf, strerror(e));
+		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
+		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
+			buf[0] += a - A;
+		printf("\t%d: \"%s\",\n", e, buf);
+	}
+	printf("}\n\n");
+	
+	printf("\n\n// Signal table\n");
+	printf("var signals = [...]string {\n");
+	qsort(signals, nelem(signals), sizeof signals[0], intcmp);
+	for(i=0; i<nelem(signals); i++) {
+		e = signals[i];
+		if(i > 0 && signals[i-1] == e)
+			continue;
+		strcpy(buf, strsignal(e));
+		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
+		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
+			buf[0] += a - A;
+		// cut trailing : number.
+		p = strrchr(buf, ":"[0]);
+		if(p)
+			*p = '\0';
+		printf("\t%d: \"%s\",\n", e, buf);
+	}
+	printf("}\n\n");
+
+	return 0;
+}
+
+'
+) >_errors.c
+
+$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out

vendor/golang.org/x/sys/plan9/mksysnum_plan9.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+# 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.
+
+COMMAND="mksysnum_plan9.sh $@"
+
+cat <<EOF
+// $COMMAND
+// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
+
+package plan9
+
+const(
+EOF
+
+SP='[ 	]' # space or tab
+sed "s/^#define${SP}\\([A-Z0-9_][A-Z0-9_]*\\)${SP}${SP}*\\([0-9][0-9]*\\)/SYS_\\1=\\2/g" \
+	< $1 | grep -v SYS__
+
+cat <<EOF
+)
+EOF

vendor/golang.org/x/sys/plan9/pwd_go15_plan9.go

@@ -0,0 +1,21 @@
+// 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 go1.5
+
+package plan9
+
+import "syscall"
+
+func fixwd() {
+	syscall.Fixwd()
+}
+
+func Getwd() (wd string, err error) {
+	return syscall.Getwd()
+}
+
+func Chdir(path string) error {
+	return syscall.Chdir(path)
+}

vendor/golang.org/x/sys/plan9/pwd_plan9.go

@@ -0,0 +1,23 @@
+// 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 !go1.5
+
+package plan9
+
+func fixwd() {
+}
+
+func Getwd() (wd string, err error) {
+	fd, err := open(".", O_RDONLY)
+	if err != nil {
+		return "", err
+	}
+	defer Close(fd)
+	return Fd2path(fd)
+}
+
+func Chdir(path string) error {
+	return chdir(path)
+}

vendor/golang.org/x/sys/plan9/race.go

@@ -0,0 +1,30 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build plan9,race
+
+package plan9
+
+import (
+	"runtime"
+	"unsafe"
+)
+
+const raceenabled = true
+
+func raceAcquire(addr unsafe.Pointer) {
+	runtime.RaceAcquire(addr)
+}
+
+func raceReleaseMerge(addr unsafe.Pointer) {
+	runtime.RaceReleaseMerge(addr)
+}
+
+func raceReadRange(addr unsafe.Pointer, len int) {
+	runtime.RaceReadRange(addr, len)
+}
+
+func raceWriteRange(addr unsafe.Pointer, len int) {
+	runtime.RaceWriteRange(addr, len)
+}

vendor/golang.org/x/sys/plan9/race0.go

@@ -0,0 +1,25 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build plan9,!race
+
+package plan9
+
+import (
+	"unsafe"
+)
+
+const raceenabled = false
+
+func raceAcquire(addr unsafe.Pointer) {
+}
+
+func raceReleaseMerge(addr unsafe.Pointer) {
+}
+
+func raceReadRange(addr unsafe.Pointer, len int) {
+}
+
+func raceWriteRange(addr unsafe.Pointer, len int) {
+}

vendor/golang.org/x/sys/plan9/str.go

@@ -0,0 +1,22 @@
+// 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 plan9
+
+package plan9
+
+func itoa(val int) string { // do it here rather than with fmt to avoid dependency
+	if val < 0 {
+		return "-" + itoa(-val)
+	}
+	var buf [32]byte // big enough for int64
+	i := len(buf) - 1
+	for val >= 10 {
+		buf[i] = byte(val%10 + '0')
+		i--
+		val /= 10
+	}
+	buf[i] = byte(val + '0')
+	return string(buf[i:])
+}

vendor/golang.org/x/sys/plan9/syscall.go

@@ -0,0 +1,116 @@
+// 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 plan9
+
+// Package plan9 contains an interface to the low-level operating system
+// primitives. OS details vary depending on the underlying system, and
+// by default, godoc will display the OS-specific documentation for the current
+// system. If you want godoc to display documentation for another
+// system, set $GOOS and $GOARCH to the desired system. For example, if
+// you want to view documentation for freebsd/arm on linux/amd64, set $GOOS
+// to freebsd and $GOARCH to arm.
+//
+// The primary use of this package is inside other packages that provide a more
+// portable interface to the system, such as "os", "time" and "net".  Use
+// those packages rather than this one if you can.
+//
+// For details of the functions and data types in this package consult
+// the manuals for the appropriate operating system.
+//
+// These calls return err == nil to indicate success; otherwise
+// err represents an operating system error describing the failure and
+// holds a value of type syscall.ErrorString.
+package plan9 // import "golang.org/x/sys/plan9"
+
+import (
+	"bytes"
+	"strings"
+	"unsafe"
+
+	"golang.org/x/sys/internal/unsafeheader"
+)
+
+// ByteSliceFromString returns a NUL-terminated slice of bytes
+// containing the text of s. If s contains a NUL byte at any
+// location, it returns (nil, EINVAL).
+func ByteSliceFromString(s string) ([]byte, error) {
+	if strings.IndexByte(s, 0) != -1 {
+		return nil, EINVAL
+	}
+	a := make([]byte, len(s)+1)
+	copy(a, s)
+	return a, nil
+}
+
+// BytePtrFromString returns a pointer to a NUL-terminated array of
+// bytes containing the text of s. If s contains a NUL byte at any
+// location, it returns (nil, EINVAL).
+func BytePtrFromString(s string) (*byte, error) {
+	a, err := ByteSliceFromString(s)
+	if err != nil {
+		return nil, err
+	}
+	return &a[0], nil
+}
+
+// ByteSliceToString returns a string form of the text represented by the slice s, with a terminating NUL and any
+// bytes after the NUL removed.
+func ByteSliceToString(s []byte) string {
+	if i := bytes.IndexByte(s, 0); i != -1 {
+		s = s[:i]
+	}
+	return string(s)
+}
+
+// BytePtrToString takes a pointer to a sequence of text and returns the corresponding string.
+// If the pointer is nil, it returns the empty string. It assumes that the text sequence is terminated
+// at a zero byte; if the zero byte is not present, the program may crash.
+func BytePtrToString(p *byte) string {
+	if p == nil {
+		return ""
+	}
+	if *p == 0 {
+		return ""
+	}
+
+	// Find NUL terminator.
+	n := 0
+	for ptr := unsafe.Pointer(p); *(*byte)(ptr) != 0; n++ {
+		ptr = unsafe.Pointer(uintptr(ptr) + 1)
+	}
+
+	var s []byte
+	h := (*unsafeheader.Slice)(unsafe.Pointer(&s))
+	h.Data = unsafe.Pointer(p)
+	h.Len = n
+	h.Cap = n
+
+	return string(s)
+}
+
+// Single-word zero for use when we need a valid pointer to 0 bytes.
+// See mksyscall.pl.
+var _zero uintptr
+
+func (ts *Timespec) Unix() (sec int64, nsec int64) {
+	return int64(ts.Sec), int64(ts.Nsec)
+}
+
+func (tv *Timeval) Unix() (sec int64, nsec int64) {
+	return int64(tv.Sec), int64(tv.Usec) * 1000
+}
+
+func (ts *Timespec) Nano() int64 {
+	return int64(ts.Sec)*1e9 + int64(ts.Nsec)
+}
+
+func (tv *Timeval) Nano() int64 {
+	return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000
+}
+
+// use is a no-op, but the compiler cannot see that it is.
+// Calling use(p) ensures that p is kept live until that point.
+//go:noescape
+func use(p unsafe.Pointer)

vendor/golang.org/x/sys/plan9/syscall_plan9.go

@@ -0,0 +1,349 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Plan 9 system calls.
+// This file is compiled as ordinary Go code,
+// but it is also input to mksyscall,
+// which parses the //sys lines and generates system call stubs.
+// Note that sometimes we use a lowercase //sys name and
+// wrap it in our own nicer implementation.
+
+package plan9
+
+import (
+	"bytes"
+	"syscall"
+	"unsafe"
+)
+
+// A Note is a string describing a process note.
+// It implements the os.Signal interface.
+type Note string
+
+func (n Note) Signal() {}
+
+func (n Note) String() string {
+	return string(n)
+}
+
+var (
+	Stdin  = 0
+	Stdout = 1
+	Stderr = 2
+)
+
+// For testing: clients can set this flag to force
+// creation of IPv6 sockets to return EAFNOSUPPORT.
+var SocketDisableIPv6 bool
+
+func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.ErrorString)
+func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.ErrorString)
+func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
+func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
+
+func atoi(b []byte) (n uint) {
+	n = 0
+	for i := 0; i < len(b); i++ {
+		n = n*10 + uint(b[i]-'0')
+	}
+	return
+}
+
+func cstring(s []byte) string {
+	i := bytes.IndexByte(s, 0)
+	if i == -1 {
+		i = len(s)
+	}
+	return string(s[:i])
+}
+
+func errstr() string {
+	var buf [ERRMAX]byte
+
+	RawSyscall(SYS_ERRSTR, uintptr(unsafe.Pointer(&buf[0])), uintptr(len(buf)), 0)
+
+	buf[len(buf)-1] = 0
+	return cstring(buf[:])
+}
+
+// Implemented in assembly to import from runtime.
+func exit(code int)
+
+func Exit(code int) { exit(code) }
+
+func readnum(path string) (uint, error) {
+	var b [12]byte
+
+	fd, e := Open(path, O_RDONLY)
+	if e != nil {
+		return 0, e
+	}
+	defer Close(fd)
+
+	n, e := Pread(fd, b[:], 0)
+
+	if e != nil {
+		return 0, e
+	}
+
+	m := 0
+	for ; m < n && b[m] == ' '; m++ {
+	}
+
+	return atoi(b[m : n-1]), nil
+}
+
+func Getpid() (pid int) {
+	n, _ := readnum("#c/pid")
+	return int(n)
+}
+
+func Getppid() (ppid int) {
+	n, _ := readnum("#c/ppid")
+	return int(n)
+}
+
+func Read(fd int, p []byte) (n int, err error) {
+	return Pread(fd, p, -1)
+}
+
+func Write(fd int, p []byte) (n int, err error) {
+	return Pwrite(fd, p, -1)
+}
+
+var ioSync int64
+
+//sys	fd2path(fd int, buf []byte) (err error)
+func Fd2path(fd int) (path string, err error) {
+	var buf [512]byte
+
+	e := fd2path(fd, buf[:])
+	if e != nil {
+		return "", e
+	}
+	return cstring(buf[:]), nil
+}
+
+//sys	pipe(p *[2]int32) (err error)
+func Pipe(p []int) (err error) {
+	if len(p) != 2 {
+		return syscall.ErrorString("bad arg in system call")
+	}
+	var pp [2]int32
+	err = pipe(&pp)
+	p[0] = int(pp[0])
+	p[1] = int(pp[1])
+	return
+}
+
+// Underlying system call writes to newoffset via pointer.
+// Implemented in assembly to avoid allocation.
+func seek(placeholder uintptr, fd int, offset int64, whence int) (newoffset int64, err string)
+
+func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
+	newoffset, e := seek(0, fd, offset, whence)
+
+	if newoffset == -1 {
+		err = syscall.ErrorString(e)
+	}
+	return
+}
+
+func Mkdir(path string, mode uint32) (err error) {
+	fd, err := Create(path, O_RDONLY, DMDIR|mode)
+
+	if fd != -1 {
+		Close(fd)
+	}
+
+	return
+}
+
+type Waitmsg struct {
+	Pid  int
+	Time [3]uint32
+	Msg  string
+}
+
+func (w Waitmsg) Exited() bool   { return true }
+func (w Waitmsg) Signaled() bool { return false }
+
+func (w Waitmsg) ExitStatus() int {
+	if len(w.Msg) == 0 {
+		// a normal exit returns no message
+		return 0
+	}
+	return 1
+}
+
+//sys	await(s []byte) (n int, err error)
+func Await(w *Waitmsg) (err error) {
+	var buf [512]byte
+	var f [5][]byte
+
+	n, err := await(buf[:])
+
+	if err != nil || w == nil {
+		return
+	}
+
+	nf := 0
+	p := 0
+	for i := 0; i < n && nf < len(f)-1; i++ {
+		if buf[i] == ' ' {
+			f[nf] = buf[p:i]
+			p = i + 1
+			nf++
+		}
+	}
+	f[nf] = buf[p:]
+	nf++
+
+	if nf != len(f) {
+		return syscall.ErrorString("invalid wait message")
+	}
+	w.Pid = int(atoi(f[0]))
+	w.Time[0] = uint32(atoi(f[1]))
+	w.Time[1] = uint32(atoi(f[2]))
+	w.Time[2] = uint32(atoi(f[3]))
+	w.Msg = cstring(f[4])
+	if w.Msg == "''" {
+		// await() returns '' for no error
+		w.Msg = ""
+	}
+	return
+}
+
+func Unmount(name, old string) (err error) {
+	fixwd()
+	oldp, err := BytePtrFromString(old)
+	if err != nil {
+		return err
+	}
+	oldptr := uintptr(unsafe.Pointer(oldp))
+
+	var r0 uintptr
+	var e syscall.ErrorString
+
+	// bind(2) man page: If name is zero, everything bound or mounted upon old is unbound or unmounted.
+	if name == "" {
+		r0, _, e = Syscall(SYS_UNMOUNT, _zero, oldptr, 0)
+	} else {
+		namep, err := BytePtrFromString(name)
+		if err != nil {
+			return err
+		}
+		r0, _, e = Syscall(SYS_UNMOUNT, uintptr(unsafe.Pointer(namep)), oldptr, 0)
+	}
+
+	if int32(r0) == -1 {
+		err = e
+	}
+	return
+}
+
+func Fchdir(fd int) (err error) {
+	path, err := Fd2path(fd)
+
+	if err != nil {
+		return
+	}
+
+	return Chdir(path)
+}
+
+type Timespec struct {
+	Sec  int32
+	Nsec int32
+}
+
+type Timeval struct {
+	Sec  int32
+	Usec int32
+}
+
+func NsecToTimeval(nsec int64) (tv Timeval) {
+	nsec += 999 // round up to microsecond
+	tv.Usec = int32(nsec % 1e9 / 1e3)
+	tv.Sec = int32(nsec / 1e9)
+	return
+}
+
+func nsec() int64 {
+	var scratch int64
+
+	r0, _, _ := Syscall(SYS_NSEC, uintptr(unsafe.Pointer(&scratch)), 0, 0)
+	// TODO(aram): remove hack after I fix _nsec in the pc64 kernel.
+	if r0 == 0 {
+		return scratch
+	}
+	return int64(r0)
+}
+
+func Gettimeofday(tv *Timeval) error {
+	nsec := nsec()
+	*tv = NsecToTimeval(nsec)
+	return nil
+}
+
+func Getpagesize() int { return 0x1000 }
+
+func Getegid() (egid int) { return -1 }
+func Geteuid() (euid int) { return -1 }
+func Getgid() (gid int)   { return -1 }
+func Getuid() (uid int)   { return -1 }
+
+func Getgroups() (gids []int, err error) {
+	return make([]int, 0), nil
+}
+
+//sys	open(path string, mode int) (fd int, err error)
+func Open(path string, mode int) (fd int, err error) {
+	fixwd()
+	return open(path, mode)
+}
+
+//sys	create(path string, mode int, perm uint32) (fd int, err error)
+func Create(path string, mode int, perm uint32) (fd int, err error) {
+	fixwd()
+	return create(path, mode, perm)
+}
+
+//sys	remove(path string) (err error)
+func Remove(path string) error {
+	fixwd()
+	return remove(path)
+}
+
+//sys	stat(path string, edir []byte) (n int, err error)
+func Stat(path string, edir []byte) (n int, err error) {
+	fixwd()
+	return stat(path, edir)
+}
+
+//sys	bind(name string, old string, flag int) (err error)
+func Bind(name string, old string, flag int) (err error) {
+	fixwd()
+	return bind(name, old, flag)
+}
+
+//sys	mount(fd int, afd int, old string, flag int, aname string) (err error)
+func Mount(fd int, afd int, old string, flag int, aname string) (err error) {
+	fixwd()
+	return mount(fd, afd, old, flag, aname)
+}
+
+//sys	wstat(path string, edir []byte) (err error)
+func Wstat(path string, edir []byte) (err error) {
+	fixwd()
+	return wstat(path, edir)
+}
+
+//sys	chdir(path string) (err error)
+//sys	Dup(oldfd int, newfd int) (fd int, err error)
+//sys	Pread(fd int, p []byte, offset int64) (n int, err error)
+//sys	Pwrite(fd int, p []byte, offset int64) (n int, err error)
+//sys	Close(fd int) (err error)
+//sys	Fstat(fd int, edir []byte) (n int, err error)
+//sys	Fwstat(fd int, edir []byte) (err error)

vendor/golang.org/x/sys/plan9/zsyscall_plan9_386.go

@@ -0,0 +1,284 @@
+// go run mksyscall.go -l32 -plan9 -tags plan9,386 syscall_plan9.go
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build plan9,386
+
+package plan9
+
+import "unsafe"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func fd2path(fd int, buf []byte) (err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func pipe(p *[2]int32) (err error) {
+	r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func await(s []byte) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(s) > 0 {
+		_p0 = unsafe.Pointer(&s[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func open(path string, mode int) (fd int, err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
+	fd = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func create(path string, mode int, perm uint32) (fd int, err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
+	fd = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func remove(path string) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func stat(path string, edir []byte) (n int, err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	var _p1 unsafe.Pointer
+	if len(edir) > 0 {
+		_p1 = unsafe.Pointer(&edir[0])
+	} else {
+		_p1 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func bind(name string, old string, flag int) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(name)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(old)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func mount(fd int, afd int, old string, flag int, aname string) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(old)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(aname)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func wstat(path string, edir []byte) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	var _p1 unsafe.Pointer
+	if len(edir) > 0 {
+		_p1 = unsafe.Pointer(&edir[0])
+	} else {
+		_p1 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func chdir(path string) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Dup(oldfd int, newfd int) (fd int, err error) {
+	r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
+	fd = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Pread(fd int, p []byte, offset int64) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(p) > 0 {
+		_p0 = unsafe.Pointer(&p[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(p) > 0 {
+		_p0 = unsafe.Pointer(&p[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Close(fd int) (err error) {
+	r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Fstat(fd int, edir []byte) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(edir) > 0 {
+		_p0 = unsafe.Pointer(&edir[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Fwstat(fd int, edir []byte) (err error) {
+	var _p0 unsafe.Pointer
+	if len(edir) > 0 {
+		_p0 = unsafe.Pointer(&edir[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}

vendor/golang.org/x/sys/plan9/zsyscall_plan9_amd64.go

@@ -0,0 +1,284 @@
+// go run mksyscall.go -l32 -plan9 -tags plan9,amd64 syscall_plan9.go
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build plan9,amd64
+
+package plan9
+
+import "unsafe"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func fd2path(fd int, buf []byte) (err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func pipe(p *[2]int32) (err error) {
+	r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func await(s []byte) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(s) > 0 {
+		_p0 = unsafe.Pointer(&s[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func open(path string, mode int) (fd int, err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
+	fd = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func create(path string, mode int, perm uint32) (fd int, err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
+	fd = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func remove(path string) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func stat(path string, edir []byte) (n int, err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	var _p1 unsafe.Pointer
+	if len(edir) > 0 {
+		_p1 = unsafe.Pointer(&edir[0])
+	} else {
+		_p1 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func bind(name string, old string, flag int) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(name)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(old)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func mount(fd int, afd int, old string, flag int, aname string) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(old)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(aname)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func wstat(path string, edir []byte) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	var _p1 unsafe.Pointer
+	if len(edir) > 0 {
+		_p1 = unsafe.Pointer(&edir[0])
+	} else {
+		_p1 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func chdir(path string) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Dup(oldfd int, newfd int) (fd int, err error) {
+	r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
+	fd = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Pread(fd int, p []byte, offset int64) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(p) > 0 {
+		_p0 = unsafe.Pointer(&p[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(p) > 0 {
+		_p0 = unsafe.Pointer(&p[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Close(fd int) (err error) {
+	r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Fstat(fd int, edir []byte) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(edir) > 0 {
+		_p0 = unsafe.Pointer(&edir[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Fwstat(fd int, edir []byte) (err error) {
+	var _p0 unsafe.Pointer
+	if len(edir) > 0 {
+		_p0 = unsafe.Pointer(&edir[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}

vendor/golang.org/x/sys/plan9/zsyscall_plan9_arm.go

@@ -0,0 +1,284 @@
+// go run mksyscall.go -l32 -plan9 -tags plan9,arm syscall_plan9.go
+// Code generated by the command above; see README.md. DO NOT EDIT.
+
+// +build plan9,arm
+
+package plan9
+
+import "unsafe"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func fd2path(fd int, buf []byte) (err error) {
+	var _p0 unsafe.Pointer
+	if len(buf) > 0 {
+		_p0 = unsafe.Pointer(&buf[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func pipe(p *[2]int32) (err error) {
+	r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func await(s []byte) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(s) > 0 {
+		_p0 = unsafe.Pointer(&s[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func open(path string, mode int) (fd int, err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
+	fd = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func create(path string, mode int, perm uint32) (fd int, err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
+	fd = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func remove(path string) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func stat(path string, edir []byte) (n int, err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	var _p1 unsafe.Pointer
+	if len(edir) > 0 {
+		_p1 = unsafe.Pointer(&edir[0])
+	} else {
+		_p1 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func bind(name string, old string, flag int) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(name)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(old)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func mount(fd int, afd int, old string, flag int, aname string) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(old)
+	if err != nil {
+		return
+	}
+	var _p1 *byte
+	_p1, err = BytePtrFromString(aname)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func wstat(path string, edir []byte) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	var _p1 unsafe.Pointer
+	if len(edir) > 0 {
+		_p1 = unsafe.Pointer(&edir[0])
+	} else {
+		_p1 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func chdir(path string) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Dup(oldfd int, newfd int) (fd int, err error) {
+	r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
+	fd = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Pread(fd int, p []byte, offset int64) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(p) > 0 {
+		_p0 = unsafe.Pointer(&p[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(p) > 0 {
+		_p0 = unsafe.Pointer(&p[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Close(fd int) (err error) {
+	r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Fstat(fd int, edir []byte) (n int, err error) {
+	var _p0 unsafe.Pointer
+	if len(edir) > 0 {
+		_p0 = unsafe.Pointer(&edir[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
+	n = int(r0)
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Fwstat(fd int, edir []byte) (err error) {
+	var _p0 unsafe.Pointer
+	if len(edir) > 0 {
+		_p0 = unsafe.Pointer(&edir[0])
+	} else {
+		_p0 = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
+	if int32(r0) == -1 {
+		err = e1
+	}
+	return
+}

vendor/golang.org/x/sys/plan9/zsysnum_plan9.go

@@ -0,0 +1,49 @@
+// mksysnum_plan9.sh /opt/plan9/sys/src/libc/9syscall/sys.h
+// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
+
+package plan9
+
+const (
+	SYS_SYSR1       = 0
+	SYS_BIND        = 2
+	SYS_CHDIR       = 3
+	SYS_CLOSE       = 4
+	SYS_DUP         = 5
+	SYS_ALARM       = 6
+	SYS_EXEC        = 7
+	SYS_EXITS       = 8
+	SYS_FAUTH       = 10
+	SYS_SEGBRK      = 12
+	SYS_OPEN        = 14
+	SYS_OSEEK       = 16
+	SYS_SLEEP       = 17
+	SYS_RFORK       = 19
+	SYS_PIPE        = 21
+	SYS_CREATE      = 22
+	SYS_FD2PATH     = 23
+	SYS_BRK_        = 24
+	SYS_REMOVE      = 25
+	SYS_NOTIFY      = 28
+	SYS_NOTED       = 29
+	SYS_SEGATTACH   = 30
+	SYS_SEGDETACH   = 31
+	SYS_SEGFREE     = 32
+	SYS_SEGFLUSH    = 33
+	SYS_RENDEZVOUS  = 34
+	SYS_UNMOUNT     = 35
+	SYS_SEMACQUIRE  = 37
+	SYS_SEMRELEASE  = 38
+	SYS_SEEK        = 39
+	SYS_FVERSION    = 40
+	SYS_ERRSTR      = 41
+	SYS_STAT        = 42
+	SYS_FSTAT       = 43
+	SYS_WSTAT       = 44
+	SYS_FWSTAT      = 45
+	SYS_MOUNT       = 46
+	SYS_AWAIT       = 47
+	SYS_PREAD       = 50
+	SYS_PWRITE      = 51
+	SYS_TSEMACQUIRE = 52
+	SYS_NSEC        = 53
+)

vendor/golang.org/x/sys/unix/aliases.go

@@ -2,7 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+//go:build (aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos) && go1.9
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 // +build go1.9
 
 package unix

vendor/golang.org/x/sys/unix/asm_bsd_386.s

@@ -1,14 +1,14 @@
-// Copyright 2009 The Go Authors. All rights reserved.
+// Copyright 2021 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.
 
+//go:build (darwin || freebsd || netbsd || openbsd) && gc
+// +build darwin freebsd netbsd openbsd
 // +build gc
 
 #include "textflag.h"
 
-//
+// System call support for 386 BSD
-// System call support for 386, FreeBSD
-//
 
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.
@@ -22,7 +22,7 @@ TEXT	·Syscall6(SB),NOSPLIT,$0-40
 TEXT	·Syscall9(SB),NOSPLIT,$0-52
 	JMP	syscall·Syscall9(SB)
 
-TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+TEXT	·RawSyscall(SB),NOSPLIT,$0-28
 	JMP	syscall·RawSyscall(SB)
 
 TEXT	·RawSyscall6(SB),NOSPLIT,$0-40

vendor/golang.org/x/sys/unix/asm_bsd_amd64.s

@@ -1,14 +1,14 @@
-// Copyright 2009 The Go Authors. All rights reserved.
+// Copyright 2021 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.
 
+//go:build (darwin || dragonfly || freebsd || netbsd || openbsd) && gc
+// +build darwin dragonfly freebsd netbsd openbsd
 // +build gc
 
 #include "textflag.h"
 
-//
+// System call support for AMD64 BSD
-// System call support for AMD64, OpenBSD
-//
 
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

vendor/golang.org/x/sys/unix/asm_bsd_arm.s

@@ -1,14 +1,14 @@
-// Copyright 2012 The Go Authors. All rights reserved.
+// Copyright 2021 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.
 
+//go:build (darwin || freebsd || netbsd || openbsd) && gc
+// +build darwin freebsd netbsd openbsd
 // +build gc
 
 #include "textflag.h"
 
-//
+// System call support for ARM BSD
-// System call support for ARM, FreeBSD
-//
 
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

vendor/golang.org/x/sys/unix/asm_bsd_arm64.s

@@ -1,14 +1,14 @@
-// Copyright 2009 The Go Authors. All rights reserved.
+// Copyright 2021 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.
 
+//go:build (darwin || freebsd || netbsd || openbsd) && gc
+// +build darwin freebsd netbsd openbsd
 // +build gc
 
 #include "textflag.h"
 
-//
+// System call support for ARM64 BSD
-// System call support for AMD64, NetBSD
-//
 
 // Just jump to package syscall's implementation for all these functions.
 // The runtime may know about them.

vendor/golang.org/x/sys/unix/asm_darwin_amd64.s

@@ -1,29 +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 gc
-
-#include "textflag.h"
-
-//
-// System call support for AMD64, Darwin
-//
-
-// Just jump to package syscall's implementation for all these functions.
-// The runtime may know about them.
-
-TEXT	·Syscall(SB),NOSPLIT,$0-56
-	JMP	syscall·Syscall(SB)
-
-TEXT	·Syscall6(SB),NOSPLIT,$0-80
-	JMP	syscall·Syscall6(SB)
-
-TEXT	·Syscall9(SB),NOSPLIT,$0-104
-	JMP	syscall·Syscall9(SB)
-
-TEXT	·RawSyscall(SB),NOSPLIT,$0-56
-	JMP	syscall·RawSyscall(SB)
-
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
-	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_darwin_arm.s

@@ -1,30 +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 gc
-// +build arm,darwin
-
-#include "textflag.h"
-
-//
-// System call support for ARM, Darwin
-//
-
-// Just jump to package syscall's implementation for all these functions.
-// The runtime may know about them.
-
-TEXT	·Syscall(SB),NOSPLIT,$0-28
-	B	syscall·Syscall(SB)
-
-TEXT	·Syscall6(SB),NOSPLIT,$0-40
-	B	syscall·Syscall6(SB)
-
-TEXT	·Syscall9(SB),NOSPLIT,$0-52
-	B	syscall·Syscall9(SB)
-
-TEXT	·RawSyscall(SB),NOSPLIT,$0-28
-	B	syscall·RawSyscall(SB)
-
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
-	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_darwin_arm64.s

@@ -1,30 +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 gc
-// +build arm64,darwin
-
-#include "textflag.h"
-
-//
-// System call support for AMD64, Darwin
-//
-
-// Just jump to package syscall's implementation for all these functions.
-// The runtime may know about them.
-
-TEXT	·Syscall(SB),NOSPLIT,$0-56
-	B	syscall·Syscall(SB)
-
-TEXT	·Syscall6(SB),NOSPLIT,$0-80
-	B	syscall·Syscall6(SB)
-
-TEXT	·Syscall9(SB),NOSPLIT,$0-104
-	B	syscall·Syscall9(SB)
-
-TEXT	·RawSyscall(SB),NOSPLIT,$0-56
-	B	syscall·RawSyscall(SB)
-
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
-	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_dragonfly_amd64.s

@@ -1,29 +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 gc
-
-#include "textflag.h"
-
-//
-// System call support for AMD64, DragonFly
-//
-
-// Just jump to package syscall's implementation for all these functions.
-// The runtime may know about them.
-
-TEXT	·Syscall(SB),NOSPLIT,$0-56
-	JMP	syscall·Syscall(SB)
-
-TEXT	·Syscall6(SB),NOSPLIT,$0-80
-	JMP	syscall·Syscall6(SB)
-
-TEXT	·Syscall9(SB),NOSPLIT,$0-104
-	JMP	syscall·Syscall9(SB)
-
-TEXT ·RawSyscall(SB),NOSPLIT,$0-56
-	JMP	syscall·RawSyscall(SB)
-
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
-	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_freebsd_arm64.s

@@ -1,29 +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 gc
-
-#include "textflag.h"
-
-//
-// System call support for ARM64, FreeBSD
-//
-
-// Just jump to package syscall's implementation for all these functions.
-// The runtime may know about them.
-
-TEXT	·Syscall(SB),NOSPLIT,$0-56
-	JMP	syscall·Syscall(SB)
-
-TEXT	·Syscall6(SB),NOSPLIT,$0-80
-	JMP	syscall·Syscall6(SB)
-
-TEXT	·Syscall9(SB),NOSPLIT,$0-104
-	JMP	syscall·Syscall9(SB)
-
-TEXT ·RawSyscall(SB),NOSPLIT,$0-56
-	JMP	syscall·RawSyscall(SB)
-
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
-	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_netbsd_arm.s

@@ -1,29 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build gc
-
-#include "textflag.h"
-
-//
-// System call support for ARM, NetBSD
-//
-
-// Just jump to package syscall's implementation for all these functions.
-// The runtime may know about them.
-
-TEXT	·Syscall(SB),NOSPLIT,$0-28
-	B	syscall·Syscall(SB)
-
-TEXT	·Syscall6(SB),NOSPLIT,$0-40
-	B	syscall·Syscall6(SB)
-
-TEXT	·Syscall9(SB),NOSPLIT,$0-52
-	B	syscall·Syscall9(SB)
-
-TEXT	·RawSyscall(SB),NOSPLIT,$0-28
-	B	syscall·RawSyscall(SB)
-
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
-	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_netbsd_arm64.s

@@ -1,29 +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 gc
-
-#include "textflag.h"
-
-//
-// System call support for ARM64, NetBSD
-//
-
-// Just jump to package syscall's implementation for all these functions.
-// The runtime may know about them.
-
-TEXT	·Syscall(SB),NOSPLIT,$0-56
-	B	syscall·Syscall(SB)
-
-TEXT	·Syscall6(SB),NOSPLIT,$0-80
-	B	syscall·Syscall6(SB)
-
-TEXT	·Syscall9(SB),NOSPLIT,$0-104
-	B	syscall·Syscall9(SB)
-
-TEXT	·RawSyscall(SB),NOSPLIT,$0-56
-	B	syscall·RawSyscall(SB)
-
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
-	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_openbsd_386.s

@@ -1,29 +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 gc
-
-#include "textflag.h"
-
-//
-// System call support for 386, OpenBSD
-//
-
-// Just jump to package syscall's implementation for all these functions.
-// The runtime may know about them.
-
-TEXT	·Syscall(SB),NOSPLIT,$0-28
-	JMP	syscall·Syscall(SB)
-
-TEXT	·Syscall6(SB),NOSPLIT,$0-40
-	JMP	syscall·Syscall6(SB)
-
-TEXT	·Syscall9(SB),NOSPLIT,$0-52
-	JMP	syscall·Syscall9(SB)
-
-TEXT ·RawSyscall(SB),NOSPLIT,$0-28
-	JMP	syscall·RawSyscall(SB)
-
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
-	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_openbsd_arm.s

@@ -1,29 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build gc
-
-#include "textflag.h"
-
-//
-// System call support for ARM, OpenBSD
-//
-
-// Just jump to package syscall's implementation for all these functions.
-// The runtime may know about them.
-
-TEXT	·Syscall(SB),NOSPLIT,$0-28
-	B	syscall·Syscall(SB)
-
-TEXT	·Syscall6(SB),NOSPLIT,$0-40
-	B	syscall·Syscall6(SB)
-
-TEXT	·Syscall9(SB),NOSPLIT,$0-52
-	B	syscall·Syscall9(SB)
-
-TEXT	·RawSyscall(SB),NOSPLIT,$0-28
-	B	syscall·RawSyscall(SB)
-
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
-	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_openbsd_arm64.s

@@ -1,29 +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 gc
-
-#include "textflag.h"
-
-//
-// System call support for arm64, OpenBSD
-//
-
-// Just jump to package syscall's implementation for all these functions.
-// The runtime may know about them.
-
-TEXT	·Syscall(SB),NOSPLIT,$0-56
-	JMP	syscall·Syscall(SB)
-
-TEXT	·Syscall6(SB),NOSPLIT,$0-80
-	JMP	syscall·Syscall6(SB)
-
-TEXT	·Syscall9(SB),NOSPLIT,$0-104
-	JMP	syscall·Syscall9(SB)
-
-TEXT	·RawSyscall(SB),NOSPLIT,$0-56
-	JMP	syscall·RawSyscall(SB)
-
-TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
-	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_zos_s390x.s

@@ -0,0 +1,426 @@
+// Copyright 2020 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.
+
+//go:build zos && s390x && gc
+// +build zos
+// +build s390x
+// +build gc
+
+#include "textflag.h"
+
+#define PSALAA            1208(R0)
+#define GTAB64(x)           80(x)
+#define LCA64(x)            88(x)
+#define CAA(x)               8(x)
+#define EDCHPXV(x)        1016(x)       // in the CAA
+#define SAVSTACK_ASYNC(x)  336(x)       // in the LCA
+
+// SS_*, where x=SAVSTACK_ASYNC
+#define SS_LE(x)             0(x)
+#define SS_GO(x)             8(x)
+#define SS_ERRNO(x)         16(x)
+#define SS_ERRNOJR(x)       20(x)
+
+#define LE_CALL BYTE $0x0D; BYTE $0x76; // BL R7, R6
+
+TEXT ·clearErrno(SB),NOSPLIT,$0-0
+	BL	addrerrno<>(SB)
+	MOVD	$0, 0(R3)
+	RET
+
+// Returns the address of errno in R3.
+TEXT addrerrno<>(SB),NOSPLIT|NOFRAME,$0-0
+	// Get library control area (LCA).
+	MOVW	PSALAA, R8
+	MOVD	LCA64(R8), R8
+
+	// Get __errno FuncDesc.
+	MOVD	CAA(R8), R9
+	MOVD	EDCHPXV(R9), R9
+	ADD	$(0x156*16), R9
+	LMG	0(R9), R5, R6
+
+	// Switch to saved LE stack.
+	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD	0(R9), R4
+	MOVD	$0, 0(R9)
+
+	// Call __errno function.
+	LE_CALL
+	NOPH
+
+	// Switch back to Go stack.
+	XOR	R0, R0      // Restore R0 to $0.
+	MOVD	R4, 0(R9)   // Save stack pointer.
+	RET
+
+TEXT ·syscall_syscall(SB),NOSPLIT,$0-56
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R1
+	MOVD	a2+16(FP), R2
+	MOVD	a3+24(FP), R3
+
+	// Get library control area (LCA).
+	MOVW	PSALAA, R8
+	MOVD	LCA64(R8), R8
+
+	// Get function.
+	MOVD	CAA(R8), R9
+	MOVD	EDCHPXV(R9), R9
+	MOVD	trap+0(FP), R5
+	SLD	$4, R5
+	ADD	R5, R9
+	LMG	0(R9), R5, R6
+
+	// Restore LE stack.
+	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD	0(R9), R4
+	MOVD	$0, 0(R9)
+
+	// Call function.
+	LE_CALL
+	NOPH
+	XOR	R0, R0      // Restore R0 to $0.
+	MOVD	R4, 0(R9)   // Save stack pointer.
+
+	MOVD	R3, r1+32(FP)
+	MOVD	R0, r2+40(FP)
+	MOVD	R0, err+48(FP)
+	MOVW	R3, R4
+	CMP	R4, $-1
+	BNE	done
+	BL	addrerrno<>(SB)
+	MOVWZ	0(R3), R3
+	MOVD	R3, err+48(FP)
+done:
+	BL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·syscall_rawsyscall(SB),NOSPLIT,$0-56
+	MOVD	a1+8(FP), R1
+	MOVD	a2+16(FP), R2
+	MOVD	a3+24(FP), R3
+
+	// Get library control area (LCA).
+	MOVW	PSALAA, R8
+	MOVD	LCA64(R8), R8
+
+	// Get function.
+	MOVD	CAA(R8), R9
+	MOVD	EDCHPXV(R9), R9
+	MOVD	trap+0(FP), R5
+	SLD	$4, R5
+	ADD	R5, R9
+	LMG	0(R9), R5, R6
+
+	// Restore LE stack.
+	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD	0(R9), R4
+	MOVD	$0, 0(R9)
+
+	// Call function.
+	LE_CALL
+	NOPH
+	XOR	R0, R0      // Restore R0 to $0.
+	MOVD	R4, 0(R9)   // Save stack pointer.
+
+	MOVD	R3, r1+32(FP)
+	MOVD	R0, r2+40(FP)
+	MOVD	R0, err+48(FP)
+	MOVW	R3, R4
+	CMP	R4, $-1
+	BNE	done
+	BL	addrerrno<>(SB)
+	MOVWZ	0(R3), R3
+	MOVD	R3, err+48(FP)
+done:
+	RET
+
+TEXT ·syscall_syscall6(SB),NOSPLIT,$0-80
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R1
+	MOVD	a2+16(FP), R2
+	MOVD	a3+24(FP), R3
+
+	// Get library control area (LCA).
+	MOVW	PSALAA, R8
+	MOVD	LCA64(R8), R8
+
+	// Get function.
+	MOVD	CAA(R8), R9
+	MOVD	EDCHPXV(R9), R9
+	MOVD	trap+0(FP), R5
+	SLD	$4, R5
+	ADD	R5, R9
+	LMG	0(R9), R5, R6
+
+	// Restore LE stack.
+	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD	0(R9), R4
+	MOVD	$0, 0(R9)
+
+	// Fill in parameter list.
+	MOVD	a4+32(FP), R12
+	MOVD	R12, (2176+24)(R4)
+	MOVD	a5+40(FP), R12
+	MOVD	R12, (2176+32)(R4)
+	MOVD	a6+48(FP), R12
+	MOVD	R12, (2176+40)(R4)
+
+	// Call function.
+	LE_CALL
+	NOPH
+	XOR	R0, R0      // Restore R0 to $0.
+	MOVD	R4, 0(R9)   // Save stack pointer.
+
+	MOVD	R3, r1+56(FP)
+	MOVD	R0, r2+64(FP)
+	MOVD	R0, err+72(FP)
+	MOVW	R3, R4
+	CMP	R4, $-1
+	BNE	done
+	BL	addrerrno<>(SB)
+	MOVWZ	0(R3), R3
+	MOVD	R3, err+72(FP)
+done:
+	BL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·syscall_rawsyscall6(SB),NOSPLIT,$0-80
+	MOVD	a1+8(FP), R1
+	MOVD	a2+16(FP), R2
+	MOVD	a3+24(FP), R3
+
+	// Get library control area (LCA).
+	MOVW	PSALAA, R8
+	MOVD	LCA64(R8), R8
+
+	// Get function.
+	MOVD	CAA(R8), R9
+	MOVD	EDCHPXV(R9), R9
+	MOVD	trap+0(FP), R5
+	SLD	$4, R5
+	ADD	R5, R9
+	LMG	0(R9), R5, R6
+
+	// Restore LE stack.
+	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD	0(R9), R4
+	MOVD	$0, 0(R9)
+
+	// Fill in parameter list.
+	MOVD	a4+32(FP), R12
+	MOVD	R12, (2176+24)(R4)
+	MOVD	a5+40(FP), R12
+	MOVD	R12, (2176+32)(R4)
+	MOVD	a6+48(FP), R12
+	MOVD	R12, (2176+40)(R4)
+
+	// Call function.
+	LE_CALL
+	NOPH
+	XOR	R0, R0      // Restore R0 to $0.
+	MOVD	R4, 0(R9)   // Save stack pointer.
+
+	MOVD	R3, r1+56(FP)
+	MOVD	R0, r2+64(FP)
+	MOVD	R0, err+72(FP)
+	MOVW	R3, R4
+	CMP	R4, $-1
+	BNE	done
+	BL	·rrno<>(SB)
+	MOVWZ	0(R3), R3
+	MOVD	R3, err+72(FP)
+done:
+	RET
+
+TEXT ·syscall_syscall9(SB),NOSPLIT,$0
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R1
+	MOVD	a2+16(FP), R2
+	MOVD	a3+24(FP), R3
+
+	// Get library control area (LCA).
+	MOVW	PSALAA, R8
+	MOVD	LCA64(R8), R8
+
+	// Get function.
+	MOVD	CAA(R8), R9
+	MOVD	EDCHPXV(R9), R9
+	MOVD	trap+0(FP), R5
+	SLD	$4, R5
+	ADD	R5, R9
+	LMG	0(R9), R5, R6
+
+	// Restore LE stack.
+	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD	0(R9), R4
+	MOVD	$0, 0(R9)
+
+	// Fill in parameter list.
+	MOVD	a4+32(FP), R12
+	MOVD	R12, (2176+24)(R4)
+	MOVD	a5+40(FP), R12
+	MOVD	R12, (2176+32)(R4)
+	MOVD	a6+48(FP), R12
+	MOVD	R12, (2176+40)(R4)
+	MOVD	a7+56(FP), R12
+	MOVD	R12, (2176+48)(R4)
+	MOVD	a8+64(FP), R12
+	MOVD	R12, (2176+56)(R4)
+	MOVD	a9+72(FP), R12
+	MOVD	R12, (2176+64)(R4)
+
+	// Call function.
+	LE_CALL
+	NOPH
+	XOR	R0, R0      // Restore R0 to $0.
+	MOVD	R4, 0(R9)   // Save stack pointer.
+
+	MOVD	R3, r1+80(FP)
+	MOVD	R0, r2+88(FP)
+	MOVD	R0, err+96(FP)
+	MOVW	R3, R4
+	CMP	R4, $-1
+	BNE	done
+	BL	addrerrno<>(SB)
+	MOVWZ	0(R3), R3
+	MOVD	R3, err+96(FP)
+done:
+        BL	runtime·exitsyscall(SB)
+        RET
+
+TEXT ·syscall_rawsyscall9(SB),NOSPLIT,$0
+	MOVD	a1+8(FP), R1
+	MOVD	a2+16(FP), R2
+	MOVD	a3+24(FP), R3
+
+	// Get library control area (LCA).
+	MOVW	PSALAA, R8
+	MOVD	LCA64(R8), R8
+
+	// Get function.
+	MOVD	CAA(R8), R9
+	MOVD	EDCHPXV(R9), R9
+	MOVD	trap+0(FP), R5
+	SLD	$4, R5
+	ADD	R5, R9
+	LMG	0(R9), R5, R6
+
+	// Restore LE stack.
+	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD	0(R9), R4
+	MOVD	$0, 0(R9)
+
+	// Fill in parameter list.
+	MOVD	a4+32(FP), R12
+	MOVD	R12, (2176+24)(R4)
+	MOVD	a5+40(FP), R12
+	MOVD	R12, (2176+32)(R4)
+	MOVD	a6+48(FP), R12
+	MOVD	R12, (2176+40)(R4)
+	MOVD	a7+56(FP), R12
+	MOVD	R12, (2176+48)(R4)
+	MOVD	a8+64(FP), R12
+	MOVD	R12, (2176+56)(R4)
+	MOVD	a9+72(FP), R12
+	MOVD	R12, (2176+64)(R4)
+
+	// Call function.
+	LE_CALL
+	NOPH
+	XOR	R0, R0      // Restore R0 to $0.
+	MOVD	R4, 0(R9)   // Save stack pointer.
+
+	MOVD	R3, r1+80(FP)
+	MOVD	R0, r2+88(FP)
+	MOVD	R0, err+96(FP)
+	MOVW	R3, R4
+	CMP	R4, $-1
+	BNE	done
+	BL	addrerrno<>(SB)
+	MOVWZ	0(R3), R3
+	MOVD	R3, err+96(FP)
+done:
+	RET
+
+// func svcCall(fnptr unsafe.Pointer, argv *unsafe.Pointer, dsa *uint64)
+TEXT ·svcCall(SB),NOSPLIT,$0
+	BL	runtime·save_g(SB)   // Save g and stack pointer
+	MOVW	PSALAA, R8
+	MOVD	LCA64(R8), R8
+	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD	R15, 0(R9)
+
+	MOVD	argv+8(FP), R1       // Move function arguments into registers
+	MOVD	dsa+16(FP), g
+	MOVD	fnptr+0(FP), R15
+
+	BYTE	$0x0D                // Branch to function
+	BYTE	$0xEF
+
+	BL	runtime·load_g(SB)   // Restore g and stack pointer
+	MOVW	PSALAA, R8
+	MOVD	LCA64(R8), R8
+	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD	0(R9), R15
+
+	RET
+
+// func svcLoad(name *byte) unsafe.Pointer
+TEXT ·svcLoad(SB),NOSPLIT,$0
+	MOVD	R15, R2          // Save go stack pointer
+	MOVD	name+0(FP), R0   // Move SVC args into registers
+	MOVD	$0x80000000, R1
+	MOVD	$0, R15
+	BYTE	$0x0A            // SVC 08 LOAD
+	BYTE	$0x08
+	MOVW	R15, R3          // Save return code from SVC
+	MOVD	R2, R15          // Restore go stack pointer
+	CMP	R3, $0           // Check SVC return code
+	BNE	error
+
+	MOVD	$-2, R3          // Reset last bit of entry point to zero
+	AND	R0, R3
+	MOVD	R3, addr+8(FP)   // Return entry point returned by SVC
+	CMP	R0, R3           // Check if last bit of entry point was set
+	BNE	done
+
+	MOVD	R15, R2          // Save go stack pointer
+	MOVD	$0, R15          // Move SVC args into registers (entry point still in r0 from SVC 08)
+	BYTE	$0x0A            // SVC 09 DELETE
+	BYTE	$0x09
+	MOVD	R2, R15          // Restore go stack pointer
+
+error:
+	MOVD	$0, addr+8(FP)   // Return 0 on failure
+done:
+	XOR	R0, R0           // Reset r0 to 0
+	RET
+
+// func svcUnload(name *byte, fnptr unsafe.Pointer) int64
+TEXT ·svcUnload(SB),NOSPLIT,$0
+	MOVD	R15, R2          // Save go stack pointer
+	MOVD	name+0(FP), R0   // Move SVC args into registers
+	MOVD	addr+8(FP), R15
+	BYTE	$0x0A            // SVC 09
+	BYTE	$0x09
+	XOR	R0, R0           // Reset r0 to 0
+	MOVD	R15, R1          // Save SVC return code
+	MOVD	R2, R15          // Restore go stack pointer
+	MOVD	R1, rc+0(FP)     // Return SVC return code
+	RET
+
+// func gettid() uint64
+TEXT ·gettid(SB), NOSPLIT, $0
+	// Get library control area (LCA).
+	MOVW PSALAA, R8
+	MOVD LCA64(R8), R8
+
+	// Get CEECAATHDID
+	MOVD CAA(R8), R9
+	MOVD 0x3D0(R9), R9
+	MOVD R9, ret+0(FP)
+
+	RET

vendor/golang.org/x/sys/unix/cap_freebsd.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build freebsd
 // +build freebsd
 
 package unix

vendor/golang.org/x/sys/unix/constants.go

@@ -2,7 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 package unix
 

vendor/golang.org/x/sys/unix/dev_aix_ppc.go

@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix
+//go:build aix && ppc
-// +build ppc
+// +build aix,ppc
 
 // Functions to access/create device major and minor numbers matching the
 // encoding used by AIX.