ready(mp)

	// Wait for the signal. We use a pipe rather than a note
	// because write is always async-signal-safe.
	entersyscallblock()
	var b byte
	read(waitForSigusr1.rdpipe, noescape(unsafe.Pointer(&b)), 1)
	exitsyscall()

	gotM := waitForSigusr1.mID
	testSigusr1 = nil

	unlockOSThread()

	if b != 0 {
		// timeout signal from caller
		return -1, -1
	}
	return mp.id, gotM
}

			physPageSize = val
		}
	}
	return i / 2
}

// raise sends a signal to the calling thread.
//
// It must be nosplit because it is used by the signal handler before
// it definitely has a Go stack.
//
//go:nosplit
func raise(sig uint32) {
	lwp_kill(-1, lwp_gettid(), int(sig))
}

func signalM(mp *m, sig int) {
	lwp_kill(-1, int32(mp.procid), sig)
}

		throw("remapping stack memory failed")
	}
}

//go:nosplit
func raise(sig uint32) {
	thrkill(getthrid(), int(sig))
}

func signalM(mp *m, sig int) {
	thrkill(int32(mp.procid), sig)
}

// sigPerThreadSyscall is only used on linux, so we assign a bogus signal
// number.
const sigPerThreadSyscall = 1 << 31

//go:nosplit
func runPerThreadSyscall() {
	throw("runPerThreadSyscall only valid on linux")

			t.Errorf("pipe write failed: %d", n)
		}
	})
	defer timer.Stop()

	wg.Wait()
	if got == -1 {
		t.Fatal("signalM signal not received")
	} else if want != got {
		t.Fatalf("signal sent to M %d, but received on M %d", want, got)
	}

// signals no longer need to be diverted to the context.
func NotifyContext(parent context.Context, signals ...os.Signal) (ctx context.Context, stop context.CancelFunc) {
	ctx, cancel := context.WithCancel(parent)
	c := &signalCtx{
		Context: ctx,
		cancel:  cancel,
		signals: signals,
	}
	c.ch = make(chan os.Signal, 1)
	Notify(c.ch, c.signals...)
	if ctx.Err() == nil {
		go func() {

// SignalsTopic returns a ControlZ topic that sends command signals to the process
func SignalsTopic() fw.Topic {
	return signalsTopic{}
}

func (signalsTopic) Title() string {
	return "Signals"
}

func (signalsTopic) Prefix() string {
	return "signal"
}

func (signalsTopic) Activate(context fw.TopicContext) {
	tmpl := assets.ParseTemplate(context.Layout(), "templates/signals.html")

{{ define "content" }}

<p>
    Send signals to the running process.
</p>

<br>
<button class="btn btn-istio" onclick="sendSIGUSR1()">SIGUSR1</button>

{{ template "last-refresh" .}}

<script>
    "use strict";

    function sendSIGUSR1() {
        let url = window.location.protocol + "//" + window.location.host + "/signalj/SIGUSR1";

        let ajax = new XMLHttpRequest();
        ajax.onload = onload;

			exit(stopProcess())
		case osSignal := <-globalOSSignalCh:
			logger.Info("Exiting on signal: %s", strings.ToUpper(osSignal.String()))
			daemon.SdNotify(false, daemon.SdNotifyStopping)
			exit(stopProcess())
		case signal := <-globalServiceSignalCh:
			switch signal {
			case serviceRestart:
				logger.Info("Restarting on service signal")
				daemon.SdNotify(false, daemon.SdNotifyReloading)
				stop := stopProcess()

			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.

*/
import "C"

func main() {
	c := make(chan os.Signal, 1)
	signal.Notify(c, syscall.SIGUSR1)
	defer signal.Stop(c)
	syscall.Kill(syscall.Getpid(), syscall.SIGUSR1)
	<-c