add prebuilt_kernel_modules module
prebuilt_kernel_modules is a build rule for processing and installing
kernel module files. The module files are processed by depmod to build
modules.{load|alias|deps|softdeps} files. Debug symbols are stripped
from the module files and then all the files are installed to
./lib/modules/<kernel_version> directory.
This is the Soong-equivalent of the 'build-image-kernel-modules-dir`
macro and is expected to replace it in the future.
Bug: 178980227
Test: m
Change-Id: I772ac816824921d275869e35b93a083d239a2450
diff --git a/kernel/prebuilt_kernel_modules_test.go b/kernel/prebuilt_kernel_modules_test.go
new file mode 100644
index 0000000..b49e167
--- /dev/null
+++ b/kernel/prebuilt_kernel_modules_test.go
@@ -0,0 +1,129 @@
+// Copyright 2021 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package kernel
+
+import (
+ "io/ioutil"
+ "os"
+ "reflect"
+ "strings"
+ "testing"
+
+ "android/soong/android"
+ "android/soong/cc"
+)
+
+func testKernelModules(t *testing.T, bp string, fs map[string][]byte) (*android.TestContext, android.Config) {
+ bp = bp + `
+ cc_binary_host {
+ name: "depmod",
+ srcs: ["depmod.cpp"],
+ stl: "none",
+ static_executable: true,
+ system_shared_libs: [],
+ }
+ `
+ bp = bp + cc.GatherRequiredDepsForTest(android.Android)
+
+ fs["depmod.cpp"] = nil
+ cc.GatherRequiredFilesForTest(fs)
+
+ config := android.TestArchConfig(buildDir, nil, bp, fs)
+
+ ctx := android.NewTestArchContext(config)
+ ctx.RegisterModuleType("prebuilt_kernel_modules", prebuiltKernelModulesFactory)
+ ctx.PreArchMutators(android.RegisterDefaultsPreArchMutators)
+ cc.RegisterRequiredBuildComponentsForTest(ctx)
+
+ ctx.Register()
+ _, errs := ctx.ParseFileList(".", []string{"Android.bp"})
+ android.FailIfErrored(t, errs)
+ _, errs = ctx.PrepareBuildActions(config)
+ android.FailIfErrored(t, errs)
+
+ return ctx, config
+}
+
+func ensureListContains(t *testing.T, result []string, expected string) {
+ t.Helper()
+ if !android.InList(expected, result) {
+ t.Errorf("%q is not found in %v", expected, result)
+ }
+}
+
+func ensureContains(t *testing.T, result string, expected string) {
+ t.Helper()
+ if !strings.Contains(result, expected) {
+ t.Errorf("%q is not found in %q", expected, result)
+ }
+}
+
+func TestKernelModulesFilelist(t *testing.T) {
+ ctx, _ := testKernelModules(t, `
+ prebuilt_kernel_modules {
+ name: "foo",
+ srcs: ["*.ko"],
+ kernel_version: "5.10",
+ }
+ `,
+ map[string][]byte{
+ "mod1.ko": nil,
+ "mod2.ko": nil,
+ })
+
+ expected := []string{
+ "lib/module/5.10/mod1.ko",
+ "lib/module/5.10/mod2.ko",
+ "lib/module/5.10/modules.load",
+ "lib/module/5.10/modules.dep",
+ "lib/module/5.10/modules.softdep",
+ "lib/module/5.10/modules.alias",
+ }
+
+ var actual []string
+ for _, ps := range ctx.ModuleForTests("foo", "android_arm64_armv8-a").Module().PackagingSpecs() {
+ actual = append(actual, ps.RelPathInPackage())
+ }
+ actual = android.SortedUniqueStrings(actual)
+ expected = android.SortedUniqueStrings(expected)
+ if !reflect.DeepEqual(actual, expected) {
+ t.Errorf("\ngot: %v\nexpected: %v\n", actual, expected)
+ }
+}
+
+var buildDir string
+
+func setUp() {
+ var err error
+ buildDir, err = ioutil.TempDir("", "soong_kernel_test")
+ if err != nil {
+ panic(err)
+ }
+}
+
+func tearDown() {
+ os.RemoveAll(buildDir)
+}
+
+func TestMain(m *testing.M) {
+ run := func() int {
+ setUp()
+ defer tearDown()
+
+ return m.Run()
+ }
+
+ os.Exit(run())
+}