err := cp(
			filepath.Join(dstbase, pkgpath),
			filepath.Join(cwd, "lib", "time", "zoneinfo.zip"),
		)
		if err != nil {
			return "", err
		}
		// Copy src/runtime/textflag.h for (at least) Test386EndToEnd in
		// cmd/asm/internal/asm.
		runtimePath := filepath.Join(dstbase, "src", "runtime")
		if err := os.MkdirAll(runtimePath, 0755); err != nil {
			return "", err
		}
		err = cp(

	for key := range errors {
		extra = append(extra, key)
	}
	sort.Strings(extra)
	for _, fileline := range extra {
		t.Errorf("unexpected error on %s: %v", fileline, errors[fileline])
	}
}

func Test386EndToEnd(t *testing.T) {
	testEndToEnd(t, "386", "386")
}

func TestARMEndToEnd(t *testing.T) {
	defer func(old int) { buildcfg.GOARM.Version = old }(buildcfg.GOARM.Version)
	for _, goarm := range []int{5, 6, 7} {