Add makefile_goal.
Only for boot images.
Test: add one makefile_goal
Bug: 158537840
Change-Id: I88a006a1c7bfbf79f10f5360aae27a9bc267e42d
diff --git a/android/makefile_goal.go b/android/makefile_goal.go
new file mode 100644
index 0000000..eae3976
--- /dev/null
+++ b/android/makefile_goal.go
@@ -0,0 +1,99 @@
+// Copyright 2020 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 android
+
+import (
+ "fmt"
+ "io"
+ "path/filepath"
+
+ "github.com/google/blueprint/proptools"
+)
+
+func init() {
+ RegisterModuleType("makefile_goal", MakefileGoalFactory)
+}
+
+type makefileGoalProperties struct {
+ // Sources.
+
+ // Makefile goal output file path, relative to PRODUCT_OUT.
+ Product_out_path *string
+}
+
+type makefileGoal struct {
+ ModuleBase
+
+ properties makefileGoalProperties
+
+ // Destination. Output file path of this module.
+ outputFilePath OutputPath
+}
+
+var _ AndroidMkEntriesProvider = (*makefileGoal)(nil)
+var _ OutputFileProducer = (*makefileGoal)(nil)
+
+// Input file of this makefile_goal module. Nil if none specified. May use variable names in makefiles.
+func (p *makefileGoal) inputPath() *string {
+ if p.properties.Product_out_path != nil {
+ return proptools.StringPtr(filepath.Join("$(PRODUCT_OUT)", proptools.String(p.properties.Product_out_path)))
+ }
+ return nil
+}
+
+// OutputFileProducer
+func (p *makefileGoal) OutputFiles(tag string) (Paths, error) {
+ if tag != "" {
+ return nil, fmt.Errorf("unsupported tag %q", tag)
+ }
+ return Paths{p.outputFilePath}, nil
+}
+
+// AndroidMkEntriesProvider
+func (p *makefileGoal) DepsMutator(ctx BottomUpMutatorContext) {
+ if p.inputPath() == nil {
+ ctx.PropertyErrorf("product_out_path", "Path relative to PRODUCT_OUT required")
+ }
+}
+
+func (p *makefileGoal) GenerateAndroidBuildActions(ctx ModuleContext) {
+ filename := filepath.Base(proptools.String(p.inputPath()))
+ p.outputFilePath = PathForModuleOut(ctx, filename).OutputPath
+
+ ctx.InstallFile(PathForModuleInstall(ctx, "etc"), ctx.ModuleName(), p.outputFilePath)
+}
+
+func (p *makefileGoal) AndroidMkEntries() []AndroidMkEntries {
+ return []AndroidMkEntries{AndroidMkEntries{
+ Class: "ETC",
+ OutputFile: OptionalPathForPath(p.outputFilePath),
+ ExtraFooters: []AndroidMkExtraFootersFunc{
+ func(w io.Writer, name, prefix, moduleDir string, entries *AndroidMkEntries) {
+ // Can't use Cp because inputPath() is not a valid Path.
+ fmt.Fprintf(w, "$(eval $(call copy-one-file,%s,%s))\n", proptools.String(p.inputPath()), p.outputFilePath)
+ },
+ },
+ }}
+}
+
+// Import a Makefile goal to Soong by copying the file built by
+// the goal to a path visible to Soong. This rule only works on boot images.
+func MakefileGoalFactory() Module {
+ module := &makefileGoal{}
+ module.AddProperties(&module.properties)
+ // This module is device-only
+ InitAndroidArchModule(module, DeviceSupported, MultilibFirst)
+ return module
+}