Eq("a", "loop2", "exit1"),
		),
		Bloc("loop2",
			Eq("a", "loop1", "exit2"),
		),
		Bloc("exit1",
			// store before call, y is available in a register
			Valu("mem2", OpAMD64MOVQstore, types.TypeMem, 0, nil, "p", "y", "mem"),
			Valu("mem3", OpAMD64CALLstatic, types.TypeMem, 0, AuxCallLSym("_"), "mem2"),
			Exit("mem3"),
		),
		Bloc("exit2",

				expected: "blub blix",
			},
			{
				mode: "panics",
				musthave: []string{
					"fatal error: exit hook invoked panic",
					"main.testPanics",
				},
			},
			{
				mode: "callsexit",
				musthave: []string{
					"fatal error: exit hook invoked exit",
				},
			},
			{
				mode:     "exit2",
				expected: "",
			},
		}

		exe, err := buildTestProg(t, "testexithooks", bmode)
		if err != nil {

	f2 := func() { os.Exit(1) }
	f3 := func() { println("good") }
	exithook.Add(exithook.Hook{F: f1, RunOnFailure: true})
	exithook.Add(exithook.Hook{F: f2, RunOnFailure: true})
	exithook.Add(exithook.Hook{F: f3, RunOnFailure: true})
	os.Exit(1)
}

func testExit2() {
	f1 := func() { time.Sleep(100 * time.Millisecond) }
	exithook.Add(exithook.Hook{F: f1})
	for range 10 {
		go os.Exit(0)
	}
	os.Exit(0)

import (
	"sync"
	_ "unsafe" // for linkname
)

// PanicOnExit0 reports whether to panic on a call to os.Exit(0).
// This is in the testlog package because, like other definitions in
// package testlog, it is a hook between the testing package and the
// os package. This is used to ensure that an early call to os.Exit(0)
// does not cause a test to pass.
func PanicOnExit0() bool {
	panicOnExit0.mu.Lock()
	defer panicOnExit0.mu.Unlock()

	18: {exits: [10]int{down: 16, east: 19, west: 18, up: 22}},
	19: {exits: [10]int{up: 29, west: 18, ne: 15, east: 20, south: 30}},
	20: {exits: [10]int{ne: 19, west: 20, se: 21}},
	21: {exits: [10]int{north: 20}}, // Dead End
	22: {exits: [10]int{north: 18, east: 24, down: 23, south: 28, west: 26, nw: 22}},
	23: {exits: [10]int{east: 22, west: 28, up: 24}},
	24: {exits: [10]int{ne: 25, down: 23, nw: 28, sw: 26}},

	// ErrExit is an error returned when kubeadm is about to exit
	ErrExit = errors.New("exit")
)

// fatal prints the message if set and then exits.
func fatal(msg string, code int) {
	if len(msg) > 0 {
		// add newline if needed
		if !strings.HasSuffix(msg, "\n") {
			msg += "\n"
		}

		fmt.Fprint(os.Stderr, msg)
	}
	os.Exit(code)
}

func minit() {
	if atomic.Load(&exiting) != 0 {
		exits(&emptystatus[0])
	}
	// Mask all SSE floating-point exceptions
	// when running on the 64-bit kernel.
	setfpmasks()
}

// Called from dropm to undo the effect of an minit.
func unminit() {
}

// Called from exitm, but not from drop, to undo the effect of thread-owned

			t.Errorf("from exit 42 got exit %q, want %q", s, want)
		}
	} else {
		t.Fatalf("expected *exec.ExitError from exit 42; got %T: %v", err, err)
	}
}

func TestExitCode(t *testing.T) {
	t.Parallel()

	// Test that exit code are returned correctly
	cmd := helperCommand(t, "exit", "42")
	cmd.Run()
	want := 42
	if runtime.GOOS == "plan9" {
		want = 1
	}

		// We can't safely sigpanic because it may grow the
		// stack. Abort in the signal handler instead.
		flags = (flags &^ _SigPanic) | _SigThrow
	}
	if flags&_SigGoExit != 0 {
		exits((*byte)(add(unsafe.Pointer(note), 9))) // Strip "go: exit " prefix.
	}
	if flags&_SigPanic != 0 {
		// Copy the error string from sigtramp's stack into m->notesig so
		// we can reliably access it from the panic routines.

 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public final class UncaughtExceptionHandlers {
  private UncaughtExceptionHandlers() {}

  /**
   * Returns an exception handler that exits the system. This is particularly useful for the main
   * thread, which may start up other, non-daemon threads, but fail to fully initialize the
   * application successfully.
   *
   * <p>Example usage:
   *
   * <pre>