Merge "Reland "Add prebuilt_build_tool to allow genrules to use prebuilt tools"" (a047f012) · Commits · e / os / android_build_soong

android/Android.bp

+1 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,7 @@ bootstrap_go_package {
		"paths.go",
		"phony.go",
		"prebuilt.go",
		"prebuilt_build_tool.go",
		"proto.go",
		"register.go",
		"rule_builder.go",

android/defs.go

+1 −1

Original line number	Diff line number	Diff line
		@@ -69,7 +69,7 @@ var (
		// A symlink rule.
		Symlink = pctx.AndroidStaticRule("Symlink",
		blueprint.RuleParams{
		Command: "ln -f -s $fromPath $out",
		Command: "rm -f $out && ln -f -s $fromPath $out",
		Description: "symlink $out",
		},
		"fromPath")

android/prebuilt_build_tool.go

0 → 100644

+94 −0

Original line number	Diff line number	Diff line
		// 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

		func init() {
		RegisterModuleType("prebuilt_build_tool", prebuiltBuildToolFactory)
		}

		type prebuiltBuildToolProperties struct {
		// Source file to be executed for this build tool
		Src *string `android:"path,arch_variant"`

		// Extra files that should trigger rules using this tool to rebuild
		Deps []string `android:"path,arch_variant"`

		// Create a make variable with the specified name that contains the path to
		// this prebuilt built tool, relative to the root of the source tree.
		Export_to_make_var *string
		}

		type prebuiltBuildTool struct {
		ModuleBase
		prebuilt Prebuilt

		properties prebuiltBuildToolProperties

		toolPath OptionalPath
		}

		func (t *prebuiltBuildTool) Name() string {
		return t.prebuilt.Name(t.ModuleBase.Name())
		}

		func (t prebuiltBuildTool) Prebuilt() Prebuilt {
		return &t.prebuilt
		}

		func (t *prebuiltBuildTool) DepsMutator(ctx BottomUpMutatorContext) {
		if t.properties.Src == nil {
		ctx.PropertyErrorf("src", "missing prebuilt source file")
		}
		}

		func (t *prebuiltBuildTool) GenerateAndroidBuildActions(ctx ModuleContext) {
		sourcePath := t.prebuilt.SingleSourcePath(ctx)
		installedPath := PathForModuleOut(ctx, t.ModuleBase.Name())
		deps := PathsForModuleSrc(ctx, t.properties.Deps)

		ctx.Build(pctx, BuildParams{
		Rule: Symlink,
		Output: installedPath,
		Input: sourcePath,
		Implicits: deps,
		Args: map[string]string{
		"fromPath": "$$PWD/" + sourcePath.String(),
		},
		})

		t.toolPath = OptionalPathForPath(installedPath)
		}

		func (t *prebuiltBuildTool) MakeVars(ctx MakeVarsModuleContext) {
		if makeVar := String(t.properties.Export_to_make_var); makeVar != "" {
		ctx.StrictRaw(makeVar, t.toolPath.String())
		}
		}

		func (t *prebuiltBuildTool) HostToolPath() OptionalPath {
		return t.toolPath
		}

		var _ HostToolProvider = &prebuiltBuildTool{}

		// prebuilt_build_tool is to declare prebuilts to be used during the build, particularly for use
		// in genrules with the "tools" property.
		func prebuiltBuildToolFactory() Module {
		module := &prebuiltBuildTool{}
		module.AddProperties(&module.properties)
		InitSingleSourcePrebuiltModule(module, &module.properties, "Src")
		InitAndroidArchModule(module, HostSupportedNoCross, MultilibFirst)
		return module
		}