}
	done := make(chan error, 1)
	go func() {
		done <- cmd.Wait()
	}()

	select {
	case err := <-abort:
		log.Warnf("Aborting proxy")
		if errKill := cmd.Process.Kill(); errKill != nil {
			log.Warnf("killing proxy caused an error %v", errKill)
		}
		return err
	case err := <-done:
		return err
	}
}

func (e *envoy) Cleanup() {
	if e.ConfigCleanup {

type blockEffects struct {
	// Computed during Liveness.prologue using only the content of
	// individual blocks:
	//
	//	uevar: upward exposed variables (used before set in block)
	//	varkill: killed variables (set in block)
	uevar   bitvec.BitVec
	varkill bitvec.BitVec

	// Computed during Liveness.solve using control flow information:
	//
	//	livein: variables live at block entry
	//	liveout: variables live at block exit

// arguments and return space) for fn, or nil. tkill must be a function that
// will send SIGTRAP to thread ID tid. gp must be locked to its OS thread and
// running.
//
// On success, InjectDebugCall returns the panic value of fn or nil.
// If fn did not panic, its results will be available in args.
func InjectDebugCall(gp *g, fn any, regArgs *abi.RegArgs, stackArgs any, tkill func(tid int) error, returnOnUnsafePoint bool) (any, error) {

	if err != nil {
		return fmt.Errorf("couldn't get node to daemon pod mapping for daemon set %q: %v", ds.Name, err)
	}

	toKeep := int(*ds.Spec.RevisionHistoryLimit)
	toKill := len(old) - toKeep
	if toKill <= 0 {
		return nil
	}

	// Find all hashes of live pods
	liveHashes := make(map[string]bool)
	for _, pods := range nodesToDaemonPods {
		for _, pod := range pods {

		}
		// replace with OpCopy
		v.SetArgs1(v.MemoryArg())
		v.Aux = nil
		v.AuxInt = 0
		v.Op = OpCopy
	}
}

// elimUnreadAutos deletes stores (and associated bookkeeping ops VarDef and VarKill)
// to autos that are never read from.
func elimUnreadAutos(f *Func) {
	// Loop over all ops that affect autos taking note of which
	// autos we need and also stores that we might be able to
	// eliminate.

		t.Skipf("no signals on %s", runtime.GOOS)
	}

	for _, test := range []string{"Segv", "SegvInCgo", "TgkillSegv", "TgkillSegvInCgo"} {
		test := test

		// The tgkill variants only run on Linux.
		if runtime.GOOS != "linux" && strings.HasPrefix(test, "Tgkill") {
			continue
		}

		t.Run(test, func(t *testing.T) {
			if test == "SegvInCgo" && runtime.GOOS == "ios" {

	SYSCALL	$SYS_getpid
	MOVW	R3, R3	// arg 1 pid
	MOVW	sig+0(FP), R4	// arg 2
	SYSCALL	$SYS_kill
	RET

TEXT ·getpid(SB),NOSPLIT|NOFRAME,$0-8
	SYSCALL $SYS_getpid
	MOVD	R3, ret+0(FP)
	RET

TEXT ·tgkill(SB),NOSPLIT|NOFRAME,$0-24
	MOVD	tgid+0(FP), R3
	MOVD	tid+8(FP), R4
	MOVD	sig+16(FP), R5
	SYSCALL $SYS_tgkill
	RET

TEXT runtime·setitimer(SB),NOSPLIT|NOFRAME,$0-24
	MOVW	mode+0(FP), R3

//sys	Setxattr(path string, attr string, data []byte, flags int) (err error)
//sys	Sync()
//sysnb	Sysinfo(info *Sysinfo_t) (err error)
//sys	Tee(rfd int, wfd int, len int, flags int) (n int64, err error)
//sysnb	Tgkill(tgid int, tid int, sig Signal) (err error)
//sysnb	Times(tms *Tms) (ticks uintptr, err error)
//sysnb	Umask(mask int) (oldmask int)
//sysnb	Uname(buf *Utsname) (err error)

		// generate incr
		s.startBlock(bIncr)
		if n.Post != nil {
			s.stmt(n.Post)
		}
		if b := s.endBlock(); b != nil {
			b.AddEdgeTo(bCond)
			// It can happen that bIncr ends in a block containing only VARKILL,
			// and that muddles the debugging experience.
			if b.Pos == src.NoXPos {
				b.Pos = bCond.Pos
			}
		}

		s.startBlock(bEnd)

	case ir.OSWITCH, ir.OSELECT: