TUN-5675: Remove github.com/dgrijalva/jwt-go dependency by upgrading coredns version

vendor/golang.org/x/sys/windows/svc/event.go

@@ -1,48 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-package svc
-
-import (
-	"errors"
-
-	"golang.org/x/sys/windows"
-)
-
-// event represents auto-reset, initially non-signaled Windows event.
-// It is used to communicate between go and asm parts of this package.
-type event struct {
-	h windows.Handle
-}
-
-func newEvent() (*event, error) {
-	h, err := windows.CreateEvent(nil, 0, 0, nil)
-	if err != nil {
-		return nil, err
-	}
-	return &event{h: h}, nil
-}
-
-func (e *event) Close() error {
-	return windows.CloseHandle(e.h)
-}
-
-func (e *event) Set() error {
-	return windows.SetEvent(e.h)
-}
-
-func (e *event) Wait() error {
-	s, err := windows.WaitForSingleObject(e.h, windows.INFINITE)
-	switch s {
-	case windows.WAIT_OBJECT_0:
-		break
-	case windows.WAIT_FAILED:
-		return err
-	default:
-		return errors.New("unexpected result from WaitForSingleObject")
-	}
-	return nil
-}

vendor/golang.org/x/sys/windows/svc/eventlog/install.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 windows
 // +build windows
 
 package eventlog

vendor/golang.org/x/sys/windows/svc/eventlog/log.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 windows
 // +build windows
 
 // Package eventlog implements access to Windows event log.

vendor/golang.org/x/sys/windows/svc/go12.c

@@ -1,24 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-// +build !go1.3
-
-// copied from pkg/runtime
-typedef	unsigned int	uint32;
-typedef	unsigned long long int	uint64;
-#ifdef _64BIT
-typedef	uint64		uintptr;
-#else
-typedef	uint32		uintptr;
-#endif
-
-// from sys_386.s or sys_amd64.s
-void ·servicemain(void);
-
-void
-·getServiceMain(uintptr *r)
-{
-	*r = (uintptr)·servicemain;
-}

vendor/golang.org/x/sys/windows/svc/go12.go

@@ -1,11 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-// +build !go1.3
-
-package svc
-
-// from go12.c
-func getServiceMain(r *uintptr)

vendor/golang.org/x/sys/windows/svc/go13.go

@@ -1,31 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-// +build go1.3
-
-package svc
-
-import "unsafe"
-
-const ptrSize = 4 << (^uintptr(0) >> 63) // unsafe.Sizeof(uintptr(0)) but an ideal const
-
-// Should be a built-in for unsafe.Pointer?
-func add(p unsafe.Pointer, x uintptr) unsafe.Pointer {
-	return unsafe.Pointer(uintptr(p) + x)
-}
-
-// funcPC returns the entry PC of the function f.
-// It assumes that f is a func value. Otherwise the behavior is undefined.
-func funcPC(f interface{}) uintptr {
-	return **(**uintptr)(add(unsafe.Pointer(&f), ptrSize))
-}
-
-// from sys_386.s and sys_amd64.s
-func servicectlhandler(ctl uint32) uintptr
-func servicemain(argc uint32, argv **uint16)
-
-func getServiceMain(r *uintptr) {
-	*r = funcPC(servicemain)
-}

vendor/golang.org/x/sys/windows/svc/mgr/config.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 windows
 // +build windows
 
 package mgr

vendor/golang.org/x/sys/windows/svc/mgr/mgr.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 windows
 // +build windows
 
 // Package mgr can be used to manage Windows service programs.

vendor/golang.org/x/sys/windows/svc/mgr/recovery.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 windows
 // +build windows
 
 package mgr

vendor/golang.org/x/sys/windows/svc/mgr/service.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 windows
 // +build windows
 
 package mgr

vendor/golang.org/x/sys/windows/svc/security.go

@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build windows
 // +build windows
 
 package svc
 
 import (
-	"path/filepath"
 	"strings"
 	"unsafe"
 
@@ -73,36 +73,29 @@ func IsWindowsService() (bool, error) {
 	// Specifically, it looks up whether the parent process has session ID zero
 	// and is called "services".
 
-	var pbi windows.PROCESS_BASIC_INFORMATION
-	pbiLen := uint32(unsafe.Sizeof(pbi))
-	err := windows.NtQueryInformationProcess(windows.CurrentProcess(), windows.ProcessBasicInformation, unsafe.Pointer(&pbi), pbiLen, &pbiLen)
+	var currentProcess windows.PROCESS_BASIC_INFORMATION
+	infoSize := uint32(unsafe.Sizeof(currentProcess))
+	err := windows.NtQueryInformationProcess(windows.CurrentProcess(), windows.ProcessBasicInformation, unsafe.Pointer(&currentProcess), infoSize, &infoSize)
 	if err != nil {
 		return false, err
 	}
-	var psid uint32
-	err = windows.ProcessIdToSessionId(uint32(pbi.InheritedFromUniqueProcessId), &psid)
-	if err != nil || psid != 0 {
-		return false, nil
+	var parentProcess *windows.SYSTEM_PROCESS_INFORMATION
+	for infoSize = uint32((unsafe.Sizeof(*parentProcess) + unsafe.Sizeof(uintptr(0))) * 1024); ; {
+		parentProcess = (*windows.SYSTEM_PROCESS_INFORMATION)(unsafe.Pointer(&make([]byte, infoSize)[0]))
+		err = windows.NtQuerySystemInformation(windows.SystemProcessInformation, unsafe.Pointer(parentProcess), infoSize, &infoSize)
+		if err == nil {
+			break
+		} else if err != windows.STATUS_INFO_LENGTH_MISMATCH {
+			return false, err
+		}
 	}
-	pproc, err := windows.OpenProcess(windows.PROCESS_QUERY_LIMITED_INFORMATION, false, uint32(pbi.InheritedFromUniqueProcessId))
-	if err != nil {
-		return false, err
+	for ; ; parentProcess = (*windows.SYSTEM_PROCESS_INFORMATION)(unsafe.Pointer(uintptr(unsafe.Pointer(parentProcess)) + uintptr(parentProcess.NextEntryOffset))) {
+		if parentProcess.UniqueProcessID == currentProcess.InheritedFromUniqueProcessId {
+			return parentProcess.SessionID == 0 && strings.EqualFold("services.exe", parentProcess.ImageName.String()), nil
+		}
+		if parentProcess.NextEntryOffset == 0 {
+			break
+		}
 	}
-	defer windows.CloseHandle(pproc)
-	var exeNameBuf [261]uint16
-	exeNameLen := uint32(len(exeNameBuf) - 1)
-	err = windows.QueryFullProcessImageName(pproc, 0, &exeNameBuf[0], &exeNameLen)
-	if err != nil {
-		return false, err
-	}
-	exeName := windows.UTF16ToString(exeNameBuf[:exeNameLen])
-	if !strings.EqualFold(filepath.Base(exeName), "services.exe") {
-		return false, nil
-	}
-	system32, err := windows.GetSystemDirectory()
-	if err != nil {
-		return false, err
-	}
-	targetExeName := filepath.Join(system32, "services.exe")
-	return strings.EqualFold(exeName, targetExeName), nil
+	return false, nil
 }

vendor/golang.org/x/sys/windows/svc/service.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 windows
 // +build windows
 
 // Package svc provides everything required to build Windows service.
@@ -10,8 +11,7 @@ package svc
 
 import (
 	"errors"
-	"runtime"
-	"syscall"
+	"sync"
 	"unsafe"
 
 	"golang.org/x/sys/internal/unsafeheader"
@@ -80,6 +80,17 @@ type Status struct {
 	ServiceSpecificExitCode uint32 // set if the service has exited with a service-specific exit code
 }
 
+// StartReason is the reason that the service was started.
+type StartReason uint32
+
+const (
+	StartReasonDemand           = StartReason(windows.SERVICE_START_REASON_DEMAND)
+	StartReasonAuto             = StartReason(windows.SERVICE_START_REASON_AUTO)
+	StartReasonTrigger          = StartReason(windows.SERVICE_START_REASON_TRIGGER)
+	StartReasonRestartOnFailure = StartReason(windows.SERVICE_START_REASON_RESTART_ON_FAILURE)
+	StartReasonDelayedAuto      = StartReason(windows.SERVICE_START_REASON_DELAYEDAUTO)
+)
+
 // ChangeRequest is sent to the service Handler to request service status change.
 type ChangeRequest struct {
 	Cmd           Cmd
@@ -91,7 +102,6 @@ type ChangeRequest struct {
 
 // Handler is the interface that must be implemented to build Windows service.
 type Handler interface {
-
 	// Execute will be called by the package code at the start of
 	// the service, and the service will exit once Execute completes.
 	// Inside Execute you must read service change requests from r and
@@ -106,28 +116,6 @@ type Handler interface {
 	Execute(args []string, r <-chan ChangeRequest, s chan<- Status) (svcSpecificEC bool, exitCode uint32)
 }
 
-var (
-	// These are used by asm code.
-	goWaitsH                       uintptr
-	cWaitsH                        uintptr
-	ssHandle                       uintptr
-	sName                          *uint16
-	sArgc                          uintptr
-	sArgv                          **uint16
-	ctlHandlerExProc               uintptr
-	cSetEvent                      uintptr
-	cWaitForSingleObject           uintptr
-	cRegisterServiceCtrlHandlerExW uintptr
-)
-
-func init() {
-	k := windows.NewLazySystemDLL("kernel32.dll")
-	cSetEvent = k.NewProc("SetEvent").Addr()
-	cWaitForSingleObject = k.NewProc("WaitForSingleObject").Addr()
-	a := windows.NewLazySystemDLL("advapi32.dll")
-	cRegisterServiceCtrlHandlerExW = a.NewProc("RegisterServiceCtrlHandlerExW").Addr()
-}
-
 type ctlEvent struct {
 	cmd       Cmd
 	eventType uint32
@@ -140,36 +128,10 @@ type ctlEvent struct {
 type service struct {
 	name    string
 	h       windows.Handle
-	cWaits  *event
-	goWaits *event
 	c       chan ctlEvent
 	handler Handler
 }
 
-func newService(name string, handler Handler) (*service, error) {
-	var s service
-	var err error
-	s.name = name
-	s.c = make(chan ctlEvent)
-	s.handler = handler
-	s.cWaits, err = newEvent()
-	if err != nil {
-		return nil, err
-	}
-	s.goWaits, err = newEvent()
-	if err != nil {
-		s.cWaits.Close()
-		return nil, err
-	}
-	return &s, nil
-}
-
-func (s *service) close() error {
-	s.cWaits.Close()
-	s.goWaits.Close()
-	return nil
-}
-
 type exitCode struct {
 	isSvcSpecific bool
 	errno         uint32
@@ -224,23 +186,42 @@ func (s *service) updateStatus(status *Status, ec *exitCode) error {
 	return windows.SetServiceStatus(s.h, &t)
 }
 
-const (
-	sysErrSetServiceStatusFailed = uint32(syscall.APPLICATION_ERROR) + iota
-	sysErrNewThreadInCallback
+var (
+	initCallbacks       sync.Once
+	ctlHandlerCallback  uintptr
+	serviceMainCallback uintptr
 )
 
-func (s *service) run() {
-	s.goWaits.Wait()
-	s.h = windows.Handle(ssHandle)
+func ctlHandler(ctl, evtype, evdata, context uintptr) uintptr {
+	s := (*service)(unsafe.Pointer(context))
+	e := ctlEvent{cmd: Cmd(ctl), eventType: uint32(evtype), eventData: evdata, context: 123456} // Set context to 123456 to test issue #25660.
+	s.c <- e
+	return 0
+}
 
-	var argv []*uint16
-	hdr := (*unsafeheader.Slice)(unsafe.Pointer(&argv))
-	hdr.Data = unsafe.Pointer(sArgv)
-	hdr.Len = int(sArgc)
-	hdr.Cap = int(sArgc)
+var theService service // This is, unfortunately, a global, which means only one service per process.
 
-	args := make([]string, len(argv))
-	for i, a := range argv {
+// serviceMain is the entry point called by the service manager, registered earlier by
+// the call to StartServiceCtrlDispatcher.
+func serviceMain(argc uint32, argv **uint16) uintptr {
+	handle, err := windows.RegisterServiceCtrlHandlerEx(windows.StringToUTF16Ptr(theService.name), ctlHandlerCallback, uintptr(unsafe.Pointer(&theService)))
+	if sysErr, ok := err.(windows.Errno); ok {
+		return uintptr(sysErr)
+	} else if err != nil {
+		return uintptr(windows.ERROR_UNKNOWN_EXCEPTION)
+	}
+	theService.h = handle
+	defer func() {
+		theService.h = 0
+	}()
+	var args16 []*uint16
+	hdr := (*unsafeheader.Slice)(unsafe.Pointer(&args16))
+	hdr.Data = unsafe.Pointer(argv)
+	hdr.Len = int(argc)
+	hdr.Cap = int(argc)
+
+	args := make([]string, len(args16))
+	for i, a := range args16 {
 		args[i] = windows.UTF16PtrToString(a)
 	}
 
@@ -249,7 +230,7 @@ func (s *service) run() {
 	exitFromHandler := make(chan exitCode)
 
 	go func() {
-		ss, errno := s.handler.Execute(args, cmdsToHandler, changesFromHandler)
+		ss, errno := theService.handler.Execute(args, cmdsToHandler, changesFromHandler)
 		exitFromHandler <- exitCode{ss, errno}
 	}()
 
@@ -258,7 +239,7 @@ func (s *service) run() {
 		CurrentStatus: Status{State: Stopped},
 	}
 	var outch chan ChangeRequest
-	inch := s.c
+	inch := theService.c
 loop:
 	for {
 		select {
@@ -274,14 +255,13 @@ loop:
 			outcr.EventData = r.eventData
 			outcr.Context = r.context
 		case outch <- outcr:
-			inch = s.c
+			inch = theService.c
 			outch = nil
 		case c := <-changesFromHandler:
-			err := s.updateStatus(&c, &ec)
+			err := theService.updateStatus(&c, &ec)
 			if err != nil {
-				// best suitable error number
-				ec.errno = sysErrSetServiceStatusFailed
-				if err2, ok := err.(syscall.Errno); ok {
+				ec.errno = uint32(windows.ERROR_EXCEPTION_IN_SERVICE)
+				if err2, ok := err.(windows.Errno); ok {
 					ec.errno = uint32(err2)
 				}
 				break loop
@@ -292,87 +272,43 @@ loop:
 		}
 	}
 
-	s.updateStatus(&Status{State: Stopped}, &ec)
-	s.cWaits.Set()
-}
+	theService.updateStatus(&Status{State: Stopped}, &ec)
 
-func newCallback(fn interface{}) (cb uintptr, err error) {
-	defer func() {
-		r := recover()
-		if r == nil {
-			return
-		}
-		cb = 0
-		switch v := r.(type) {
-		case string:
-			err = errors.New(v)
-		case error:
-			err = v
-		default:
-			err = errors.New("unexpected panic in syscall.NewCallback")
-		}
-	}()
-	return syscall.NewCallback(fn), nil
+	return windows.NO_ERROR
 }
 
-// BUG(brainman): There is no mechanism to run multiple services
-// inside one single executable. Perhaps, it can be overcome by
-// using RegisterServiceCtrlHandlerEx Windows api.
-
 // Run executes service name by calling appropriate handler function.
 func Run(name string, handler Handler) error {
-	runtime.LockOSThread()
-
-	tid := windows.GetCurrentThreadId()
-
-	s, err := newService(name, handler)
-	if err != nil {
-		return err
-	}
-
-	ctlHandler := func(ctl, evtype, evdata, context uintptr) uintptr {
-		e := ctlEvent{cmd: Cmd(ctl), eventType: uint32(evtype), eventData: evdata, context: context}
-		// We assume that this callback function is running on
-		// the same thread as Run. Nowhere in MS documentation
-		// I could find statement to guarantee that. So putting
-		// check here to verify, otherwise things will go bad
-		// quickly, if ignored.
-		i := windows.GetCurrentThreadId()
-		if i != tid {
-			e.errno = sysErrNewThreadInCallback
-		}
-		s.c <- e
-		// Always return NO_ERROR (0) for now.
-		return windows.NO_ERROR
-	}
-
-	var svcmain uintptr
-	getServiceMain(&svcmain)
+	initCallbacks.Do(func() {
+		ctlHandlerCallback = windows.NewCallback(ctlHandler)
+		serviceMainCallback = windows.NewCallback(serviceMain)
+	})
+	theService.name = name
+	theService.handler = handler
+	theService.c = make(chan ctlEvent)
 	t := []windows.SERVICE_TABLE_ENTRY{
-		{ServiceName: syscall.StringToUTF16Ptr(s.name), ServiceProc: svcmain},
+		{ServiceName: windows.StringToUTF16Ptr(theService.name), ServiceProc: serviceMainCallback},
 		{ServiceName: nil, ServiceProc: 0},
 	}
-
-	goWaitsH = uintptr(s.goWaits.h)
-	cWaitsH = uintptr(s.cWaits.h)
-	sName = t[0].ServiceName
-	ctlHandlerExProc, err = newCallback(ctlHandler)
-	if err != nil {
-		return err
-	}
-
-	go s.run()
-
-	err = windows.StartServiceCtrlDispatcher(&t[0])
-	if err != nil {
-		return err
-	}
-	return nil
+	return windows.StartServiceCtrlDispatcher(&t[0])
 }
 
 // StatusHandle returns service status handle. It is safe to call this function
 // from inside the Handler.Execute because then it is guaranteed to be set.
-// This code will have to change once multiple services are possible per process.
 func StatusHandle() windows.Handle {
-	return windows.Handle(ssHandle)
+	return theService.h
+}
+
+// DynamicStartReason returns the reason why the service was started. It is safe
+// to call this function from inside the Handler.Execute because then it is
+// guaranteed to be set.
+func DynamicStartReason() (StartReason, error) {
+	var allocReason *uint32
+	err := windows.QueryServiceDynamicInformation(theService.h, windows.SERVICE_DYNAMIC_INFORMATION_LEVEL_START_REASON, unsafe.Pointer(&allocReason))
+	if err != nil {
+		return 0, err
+	}
+	reason := StartReason(*allocReason)
+	windows.LocalFree(windows.Handle(unsafe.Pointer(allocReason)))
+	return reason, nil
 }

vendor/golang.org/x/sys/windows/svc/sys_windows_386.s

@@ -1,67 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// func servicemain(argc uint32, argv **uint16)
-TEXT ·servicemain(SB),7,$0
-	MOVL	argc+0(FP), AX
-	MOVL	AX, ·sArgc(SB)
-	MOVL	argv+4(FP), AX
-	MOVL	AX, ·sArgv(SB)
-
-	PUSHL	BP
-	PUSHL	BX
-	PUSHL	SI
-	PUSHL	DI
-
-	SUBL	$12, SP
-
-	MOVL	·sName(SB), AX
-	MOVL	AX, (SP)
-	MOVL	$·servicectlhandler(SB), AX
-	MOVL	AX, 4(SP)
-	// Set context to 123456 to test issue #25660.
-	MOVL	$123456, 8(SP)
-	MOVL	·cRegisterServiceCtrlHandlerExW(SB), AX
-	MOVL	SP, BP
-	CALL	AX
-	MOVL	BP, SP
-	CMPL	AX, $0
-	JE	exit
-	MOVL	AX, ·ssHandle(SB)
-
-	MOVL	·goWaitsH(SB), AX
-	MOVL	AX, (SP)
-	MOVL	·cSetEvent(SB), AX
-	MOVL	SP, BP
-	CALL	AX
-	MOVL	BP, SP
-
-	MOVL	·cWaitsH(SB), AX
-	MOVL	AX, (SP)
-	MOVL	$-1, AX
-	MOVL	AX, 4(SP)
-	MOVL	·cWaitForSingleObject(SB), AX
-	MOVL	SP, BP
-	CALL	AX
-	MOVL	BP, SP
-
-exit:
-	ADDL	$12, SP
-
-	POPL	DI
-	POPL	SI
-	POPL	BX
-	POPL	BP
-
-	MOVL	0(SP), CX
-	ADDL	$12, SP
-	JMP	CX
-
-// I do not know why, but this seems to be the only way to call
-// ctlHandlerProc on Windows 7.
-
-// func servicectlhandler(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr {
-TEXT ·servicectlhandler(SB),7,$0
-	MOVL	·ctlHandlerExProc(SB), CX
-	JMP	CX

vendor/golang.org/x/sys/windows/svc/sys_windows_amd64.s

@@ -1,46 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// func servicemain(argc uint32, argv **uint16)
-TEXT ·servicemain(SB),7,$0
-	MOVQ	SP, AX
-	ANDQ	$~15, SP	// alignment as per Windows requirement
-	SUBQ	$48, SP		// room for SP and 4 args as per Windows requirement
-				// plus one extra word to keep stack 16 bytes aligned
-	MOVQ	AX, 32(SP)
-
-	MOVL	CX, ·sArgc(SB)
-	MOVQ	DX, ·sArgv(SB)
-
-	MOVQ	·sName(SB), CX
-	MOVQ	$·servicectlhandler(SB), DX
-	// BUG(pastarmovj): Figure out a way to pass in context in R8.
-	// Set context to 123456 to test issue #25660.
-	MOVQ	$123456, R8
-	MOVQ	·cRegisterServiceCtrlHandlerExW(SB), AX
-	CALL	AX
-	CMPQ	AX, $0
-	JE	exit
-	MOVQ	AX, ·ssHandle(SB)
-
-	MOVQ	·goWaitsH(SB), CX
-	MOVQ	·cSetEvent(SB), AX
-	CALL	AX
-
-	MOVQ	·cWaitsH(SB), CX
-	MOVQ	$4294967295, DX
-	MOVQ	·cWaitForSingleObject(SB), AX
-	CALL	AX
-
-exit:
-	MOVQ	32(SP), SP
-	RET
-
-// I do not know why, but this seems to be the only way to call
-// ctlHandlerProc on Windows 7.
-
-// func ·servicectlhandler(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr {
-TEXT ·servicectlhandler(SB),7,$0
-	MOVQ	·ctlHandlerExProc(SB), AX
-	JMP	AX

vendor/golang.org/x/sys/windows/svc/sys_windows_arm.s

@@ -1,36 +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.
-
-#include "textflag.h"
-
-// func servicemain(argc uint32, argv **uint16)
-TEXT ·servicemain(SB),NOSPLIT|NOFRAME,$0
-	MOVM.DB.W [R4, R14], (R13)	// push {r4, lr}
-	MOVW	R13, R4
-	BIC	$0x7, R13		// alignment for ABI
-
-	MOVW	R0, ·sArgc(SB)
-	MOVW	R1, ·sArgv(SB)
-
-	MOVW	·sName(SB), R0
-	MOVW	·ctlHandlerExProc(SB), R1
-	MOVW	$0, R2
-	MOVW	·cRegisterServiceCtrlHandlerExW(SB), R3
-	BL	(R3)
-	CMP	$0, R0
-	BEQ	exit
-	MOVW	R0, ·ssHandle(SB)
-
-	MOVW	·goWaitsH(SB), R0
-	MOVW	·cSetEvent(SB), R1
-	BL	(R1)
-
-	MOVW	·cWaitsH(SB), R0
-	MOVW	$-1, R1
-	MOVW	·cWaitForSingleObject(SB), R2
-	BL	(R2)
-
-exit:
-	MOVW	R4, R13			// free extra stack space
-	MOVM.IA.W (R13), [R4, R15]	// pop {r4, pc}

vendor/golang.org/x/sys/windows/svc/sys_windows_arm64.s

@@ -1,31 +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.
-
-#include "textflag.h"
-
-// func servicemain(argc uint32, argv **uint16)
-TEXT ·servicemain(SB),NOSPLIT|NOFRAME,$0
-	MOVD	R0, ·sArgc(SB)
-	MOVD	R1, ·sArgv(SB)
-
-	MOVD	·sName(SB), R0
-	MOVD	·ctlHandlerExProc(SB), R1
-	MOVD	$0, R2
-	MOVD	·cRegisterServiceCtrlHandlerExW(SB), R3
-	BL	(R3)
-	CMP	$0, R0
-	BEQ	exit
-	MOVD	R0, ·ssHandle(SB)
-
-	MOVD	·goWaitsH(SB), R0
-	MOVD	·cSetEvent(SB), R1
-	BL	(R1)
-
-	MOVD	·cWaitsH(SB), R0
-	MOVD	$-1, R1
-	MOVD	·cWaitForSingleObject(SB), R2
-	BL	(R2)
-
-exit:
-	RET