height:    make(map[loader.Sym]int16, len(ctxt.Textp)),
	}
	// Compute stack effect of a CALL operation. 0 on LR machines.
	// 1 register pushed on non-LR machines.
	if !ctxt.Arch.HasLR {
		sc.callSize = ctxt.Arch.RegSize
	}

	if graph {
		// We're going to record the call graph.
		sc.graph = make(map[loader.Sym][]stackCheckEdge)
	}

	return sc
}

	switch platform {
	case "windows/amd64", "windows/386":
	default:
		t.Skip("skipping windows amd64/386 only test")
	}

	testenv.MustHaveCGO(t)

	t.Run("aslr", func(t *testing.T) {
		testWindowsBuildmodeCSharedASLR(t, true)
	})
	t.Run("no-aslr", func(t *testing.T) {
		testWindowsBuildmodeCSharedASLR(t, false)
	})
}

func testWindowsBuildmodeCSharedASLR(t *testing.T, useASLR bool) {
	t.Parallel()

	flagMsan          = flag.Bool("msan", false, "enable MSan interface")
	flagAsan          = flag.Bool("asan", false, "enable ASan interface")
	flagAslr          = flag.Bool("aslr", true, "enable ASLR for buildmode=c-shared on windows")

	flagFieldTrack = flag.String("k", "", "set field tracking `symbol`")
	flagLibGCC     = flag.String("libgcc", "", "compiler support lib for internal linking; use \"none\" to disable")

	// '`' opening already consumed
	offs := s.offset - 1

	hasCR := false
	for {
		ch := s.ch
		if ch < 0 {
			s.error(offs, "raw string literal not terminated")
			break
		}
		s.next()
		if ch == '`' {
			break
		}
		if ch == '\r' {
			hasCR = true
		}
	}

	lit := s.src[offs:s.offset]
	if hasCR {
		lit = stripCR(lit, false)
	}

	return string(lit)
}

	}
	if !optsSpecified && len(c.children) == 0 {
		t.Fatal("TrafficTestCase: must specify either opts or children")
	}

	if !c.RequiresL4 {
		c.comboFilters = append(c.comboFilters, echotest.HasL7)
	}

	job := func(t framework.TestContext) {
		echoT := echotest.New(t, apps).
			SetupForServicePair(func(t framework.TestContext, src echo.Callers, dsts echo.Services) error {
				tmplData := map[string]any{

		//       VADDR=0xffffffff80200000
		// stextOffset=0xffffffff80200198
		//       Start=0xffffffff83200000
		//       Limit=0xffffffff84200000
		//      Offset=0 (0xc000000000000000 for PowerPC64) (== Start for ASLR kernel)
		// So the base should be:
		if stextOffset != nil && (start%pageSize) == (*stextOffset%pageSize) {
			// perf uses the address of _stext as start. Some tools may

func (m *Matcher) stack(w Writer) bool {
	const maxStack = 16
	var stk [maxStack]uintptr
	n := runtime.Callers(2, stk[:])
	// caller #2 is not for printing; need it to normalize PCs if ASLR.
	if n <= 1 {
		return false
	}

	base := stk[0]
	// normalize PCs
	for i := range stk[:n] {
		stk[i] -= base
	}

	h := Hash(stk[:n])
	if m.ShouldPrint(h) {
		var d *dedup