cc/androidmk.go - android_build_soong - Gitiles

 // Copyright 2015 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 cc

 import (
 	"fmt"
 	"io"
 	"path/filepath"
 	"strings"

 	"android/soong/android"
 )

 var (
 	vendorSuffix   = ".vendor"
 	recoverySuffix = ".recovery"
 )

 type AndroidMkContext interface {
 	Name() string
 	Target() android.Target
 	subAndroidMk(*android.AndroidMkData, interface{})
 	Arch() android.Arch
 	Os() android.OsType
 	Host() bool
 	useVndk() bool
 	static() bool
 	inRecovery() bool
 }

 type subAndroidMkProvider interface {
 	AndroidMk(AndroidMkContext, *android.AndroidMkData)
 }

 func (c *Module) subAndroidMk(data *android.AndroidMkData, obj interface{}) {
 	if c.subAndroidMkOnce == nil {
 		c.subAndroidMkOnce = make(map[subAndroidMkProvider]bool)
 	}
 	if androidmk, ok := obj.(subAndroidMkProvider); ok {
 		if !c.subAndroidMkOnce[androidmk] {
 			c.subAndroidMkOnce[androidmk] = true
 			androidmk.AndroidMk(c, data)
 		}
 	}
 }

 func (c *Module) AndroidMk() android.AndroidMkData {
 	if c.Properties.HideFromMake || !c.IsForPlatform() {
 		return android.AndroidMkData{
 			Disabled: true,
 		}
 	}

 	ret := android.AndroidMkData{
 		OutputFile: c.outputFile,
 		// TODO(jiyong): add the APEXes providing shared libs to the required modules
 		// Currently, adding c.Properties.ApexesProvidingSharedLibs is causing multiple
 		// runtime APEXes (com.android.runtime.debug|release) to be installed. And this
 		// is breaking some older devices (like marlin) where system.img is small.
 		Required: c.Properties.AndroidMkRuntimeLibs,
 		Include:  "$(BUILD_SYSTEM)/soong_cc_prebuilt.mk",

 		Extra: []android.AndroidMkExtraFunc{
 			func(w io.Writer, outputFile android.Path) {
 				if len(c.Properties.Logtags) > 0 {
 					fmt.Fprintln(w, "LOCAL_LOGTAGS_FILES :=", strings.Join(c.Properties.Logtags, " "))
 				}
 				if len(c.Properties.AndroidMkSharedLibs) > 0 {
 					fmt.Fprintln(w, "LOCAL_SHARED_LIBRARIES := "+strings.Join(c.Properties.AndroidMkSharedLibs, " "))
 				}
 				if len(c.Properties.AndroidMkStaticLibs) > 0 {
 					fmt.Fprintln(w, "LOCAL_STATIC_LIBRARIES := "+strings.Join(c.Properties.AndroidMkStaticLibs, " "))
 				}
 				if len(c.Properties.AndroidMkWholeStaticLibs) > 0 {
 					fmt.Fprintln(w, "LOCAL_WHOLE_STATIC_LIBRARIES := "+strings.Join(c.Properties.AndroidMkWholeStaticLibs, " "))
 				}
 				fmt.Fprintln(w, "LOCAL_SOONG_LINK_TYPE :=", c.getMakeLinkType())
 				if c.useVndk() {
 					fmt.Fprintln(w, "LOCAL_USE_VNDK := true")
 				}
 			},
 		},
 	}

 	for _, feature := range c.features {
 		c.subAndroidMk(&ret, feature)
 	}

 	c.subAndroidMk(&ret, c.compiler)
 	c.subAndroidMk(&ret, c.linker)
 	if c.sanitize != nil {
 		c.subAndroidMk(&ret, c.sanitize)
 	}
 	c.subAndroidMk(&ret, c.installer)

 	if c.useVndk() && c.hasVendorVariant() {
 		// .vendor suffix is added only when we will have two variants: core and vendor.
 		// The suffix is not added for vendor-only module.
 		ret.SubName += vendorSuffix
 	} else if c.inRecovery() && !c.onlyInRecovery() {
 		ret.SubName += recoverySuffix
 	}

 	return ret
 }

 func androidMkWriteTestData(data android.Paths, ctx AndroidMkContext, ret *android.AndroidMkData) {
 	var testFiles []string
 	for _, d := range data {
 		rel := d.Rel()
 		path := d.String()
 		if !strings.HasSuffix(path, rel) {
 			panic(fmt.Errorf("path %q does not end with %q", path, rel))
 		}
 		path = strings.TrimSuffix(path, rel)
 		testFiles = append(testFiles, path+":"+rel)
 	}
 	if len(testFiles) > 0 {
 		ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 			fmt.Fprintln(w, "LOCAL_TEST_DATA := "+strings.Join(testFiles, " "))
 		})
 	}
 }

 func (library *libraryDecorator) androidMkWriteExportedFlags(w io.Writer) {
 	exportedFlags := library.exportedFlags()
 	if len(exportedFlags) > 0 {
 		fmt.Fprintln(w, "LOCAL_EXPORT_CFLAGS :=", strings.Join(exportedFlags, " "))
 	}
 	exportedFlagsDeps := library.exportedFlagsDeps()
 	if len(exportedFlagsDeps) > 0 {
 		fmt.Fprintln(w, "LOCAL_EXPORT_C_INCLUDE_DEPS :=", strings.Join(exportedFlagsDeps.Strings(), " "))
 	}
 }

 func (library *libraryDecorator) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	if library.static() {
 		ret.Class = "STATIC_LIBRARIES"
 	} else if library.shared() {
 		ret.Class = "SHARED_LIBRARIES"
 		ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 			fmt.Fprintln(w, "LOCAL_SOONG_TOC :=", library.toc().String())
 			if !library.buildStubs() {
 				fmt.Fprintln(w, "LOCAL_SOONG_UNSTRIPPED_BINARY :=", library.unstrippedOutputFile.String())
 			}
 			if len(library.Properties.Overrides) > 0 {
 				fmt.Fprintln(w, "LOCAL_OVERRIDES_MODULES := "+strings.Join(library.Properties.Overrides, " "))
 			}
 			if len(library.post_install_cmds) > 0 {
 				fmt.Fprintln(w, "LOCAL_POST_INSTALL_CMD := "+strings.Join(library.post_install_cmds, "&& "))
 			}
 		})
 	} else if library.header() {
 		ret.Class = "HEADER_LIBRARIES"
 	}

 	ret.DistFile = library.distFile
 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		library.androidMkWriteExportedFlags(w)
 		fmt.Fprintln(w, "LOCAL_ADDITIONAL_DEPENDENCIES := ")
 		if library.sAbiOutputFile.Valid() {
 			fmt.Fprintln(w, "LOCAL_ADDITIONAL_DEPENDENCIES += ", library.sAbiOutputFile.String())
 			if library.sAbiDiff.Valid() && !library.static() {
 				fmt.Fprintln(w, "LOCAL_ADDITIONAL_DEPENDENCIES += ", library.sAbiDiff.String())
 				fmt.Fprintln(w, "HEADER_ABI_DIFFS += ", library.sAbiDiff.String())
 			}
 		}

 		_, _, ext := splitFileExt(outputFile.Base())

 		fmt.Fprintln(w, "LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE)"+ext)

 		if library.coverageOutputFile.Valid() {
 			fmt.Fprintln(w, "LOCAL_PREBUILT_COVERAGE_ARCHIVE :=", library.coverageOutputFile.String())
 		}

 		if library.useCoreVariant {
 			fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
 			fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
 			fmt.Fprintln(w, "LOCAL_VNDK_DEPEND_ON_CORE_VARIANT := true")
 		}
 	})

 	if library.shared() && !library.buildStubs() {
 		ctx.subAndroidMk(ret, library.baseInstaller)
 	} else {
 		ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 			fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
 			if library.buildStubs() {
 				fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
 			}
 		})
 	}
 	if len(library.Properties.Stubs.Versions) > 0 &&
 		android.DirectlyInAnyApex(ctx, ctx.Name()) && !ctx.inRecovery() && !ctx.useVndk() &&
 		!ctx.static() {
 		if !library.buildStubs() {
 			ret.SubName = ".bootstrap"
 		}
 	}
 }

 func (object *objectLinker) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ret.Custom = func(w io.Writer, name, prefix, moduleDir string, data android.AndroidMkData) {
 		out := ret.OutputFile.Path()
 		varname := fmt.Sprintf("SOONG_%sOBJECT_%s%s", prefix, name, data.SubName)

 		fmt.Fprintf(w, "\n%s := %s\n", varname, out.String())
 		fmt.Fprintln(w, ".KATI_READONLY: "+varname)
 	}
 }

 func (binary *binaryDecorator) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ctx.subAndroidMk(ret, binary.baseInstaller)

 	ret.Class = "EXECUTABLES"
 	ret.DistFile = binary.distFile
 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		fmt.Fprintln(w, "LOCAL_SOONG_UNSTRIPPED_BINARY :=", binary.unstrippedOutputFile.String())
 		if len(binary.symlinks) > 0 {
 			fmt.Fprintln(w, "LOCAL_MODULE_SYMLINKS := "+strings.Join(binary.symlinks, " "))
 		}

 		if binary.coverageOutputFile.Valid() {
 			fmt.Fprintln(w, "LOCAL_PREBUILT_COVERAGE_ARCHIVE :=", binary.coverageOutputFile.String())
 		}

 		if len(binary.Properties.Overrides) > 0 {
 			fmt.Fprintln(w, "LOCAL_OVERRIDES_MODULES := "+strings.Join(binary.Properties.Overrides, " "))
 		}
 		if len(binary.post_install_cmds) > 0 {
 			fmt.Fprintln(w, "LOCAL_POST_INSTALL_CMD := "+strings.Join(binary.post_install_cmds, "&& "))
 		}
 	})
 }

 func (benchmark *benchmarkDecorator) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ctx.subAndroidMk(ret, benchmark.binaryDecorator)
 	ret.Class = "NATIVE_TESTS"
 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		if len(benchmark.Properties.Test_suites) > 0 {
 			fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE :=",
 				strings.Join(benchmark.Properties.Test_suites, " "))
 		}
 		if benchmark.testConfig != nil {
 			fmt.Fprintln(w, "LOCAL_FULL_TEST_CONFIG :=", benchmark.testConfig.String())
 		}
 		fmt.Fprintln(w, "LOCAL_NATIVE_BENCHMARK := true")
 	})

 	androidMkWriteTestData(benchmark.data, ctx, ret)
 }

 func (test *testBinary) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ctx.subAndroidMk(ret, test.binaryDecorator)
 	ret.Class = "NATIVE_TESTS"
 	if Bool(test.Properties.Test_per_src) {
 		ret.SubName = "_" + String(test.binaryDecorator.Properties.Stem)
 	}

 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		if len(test.Properties.Test_suites) > 0 {
 			fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE :=",
 				strings.Join(test.Properties.Test_suites, " "))
 		}
 		if test.testConfig != nil {
 			fmt.Fprintln(w, "LOCAL_FULL_TEST_CONFIG :=", test.testConfig.String())
 		}
 	})

 	androidMkWriteTestData(test.data, ctx, ret)
 }

 func (test *testLibrary) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ctx.subAndroidMk(ret, test.libraryDecorator)
 }

 func (library *toolchainLibraryDecorator) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ret.Class = "STATIC_LIBRARIES"
 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		_, suffix, _ := splitFileExt(outputFile.Base())
 		fmt.Fprintln(w, "LOCAL_MODULE_SUFFIX := "+suffix)
 	})
 }

 func (installer *baseInstaller) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	// Soong installation is only supported for host modules. Have Make
 	// installation trigger Soong installation.
 	if ctx.Target().Os.Class == android.Host {
 		ret.OutputFile = android.OptionalPathForPath(installer.path)
 	}

 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		path := installer.path.RelPathString()
 		dir, file := filepath.Split(path)
 		stem, suffix, _ := splitFileExt(file)
 		fmt.Fprintln(w, "LOCAL_MODULE_SUFFIX := "+suffix)
 		fmt.Fprintln(w, "LOCAL_MODULE_PATH := $(OUT_DIR)/"+filepath.Clean(dir))
 		fmt.Fprintln(w, "LOCAL_MODULE_STEM := "+stem)
 	})
 }

 func (c *stubDecorator) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ret.SubName = ndkLibrarySuffix + "." + c.properties.ApiLevel
 	ret.Class = "SHARED_LIBRARIES"

 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		path, file := filepath.Split(c.installPath.String())
 		stem, suffix, _ := splitFileExt(file)
 		fmt.Fprintln(w, "LOCAL_MODULE_SUFFIX := "+suffix)
 		fmt.Fprintln(w, "LOCAL_MODULE_PATH := "+path)
 		fmt.Fprintln(w, "LOCAL_MODULE_STEM := "+stem)
 		fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
 	})
 }

 func (c *llndkStubDecorator) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ret.Class = "SHARED_LIBRARIES"
 	ret.SubName = vendorSuffix

 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		c.libraryDecorator.androidMkWriteExportedFlags(w)
 		_, _, ext := splitFileExt(outputFile.Base())

 		fmt.Fprintln(w, "LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE)"+ext)
 		fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
 		fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
 		fmt.Fprintln(w, "LOCAL_SOONG_TOC :=", c.toc().String())
 	})
 }

 func (c *vndkPrebuiltLibraryDecorator) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ret.Class = "SHARED_LIBRARIES"

 	ret.SubName = c.NameSuffix()

 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		c.libraryDecorator.androidMkWriteExportedFlags(w)

 		path := c.path.RelPathString()
 		dir, file := filepath.Split(path)
 		stem, suffix, ext := splitFileExt(file)
 		fmt.Fprintln(w, "LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE)"+ext)
 		fmt.Fprintln(w, "LOCAL_MODULE_SUFFIX := "+suffix)
 		fmt.Fprintln(w, "LOCAL_MODULE_PATH := $(OUT_DIR)/"+filepath.Clean(dir))
 		fmt.Fprintln(w, "LOCAL_MODULE_STEM := "+stem)
 	})
 }

 func (c *ndkPrebuiltStlLinker) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ret.Class = "SHARED_LIBRARIES"
 }

 func (c *vendorPublicLibraryStubDecorator) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ret.Class = "SHARED_LIBRARIES"
 	ret.SubName = vendorPublicLibrarySuffix

 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		c.libraryDecorator.androidMkWriteExportedFlags(w)
 		_, _, ext := splitFileExt(outputFile.Base())

 		fmt.Fprintln(w, "LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE)"+ext)
 		fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
 		fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
 	})
 }

 func (p *prebuiltLinker) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		if p.properties.Check_elf_files != nil {
 			fmt.Fprintln(w, "LOCAL_CHECK_ELF_FILES :=", *p.properties.Check_elf_files)
 		} else {
 			// soong_cc_prebuilt.mk does not include check_elf_file.mk by default
 			// because cc_library_shared and cc_binary use soong_cc_prebuilt.mk as well.
 			// In order to turn on prebuilt ABI checker, set `LOCAL_CHECK_ELF_FILES` to
 			// true if `p.properties.Check_elf_files` is not specified.
 			fmt.Fprintln(w, "LOCAL_CHECK_ELF_FILES := true")
 		}
 	})
 }

 func (p *prebuiltLibraryLinker) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ctx.subAndroidMk(ret, p.libraryDecorator)
 	if p.shared() {
 		ctx.subAndroidMk(ret, &p.prebuiltLinker)
 		androidMkWriteAllowUndefinedSymbols(p.baseLinker, ret)
 	}
 }

 func (p *prebuiltBinaryLinker) AndroidMk(ctx AndroidMkContext, ret *android.AndroidMkData) {
 	ctx.subAndroidMk(ret, p.binaryDecorator)
 	ctx.subAndroidMk(ret, &p.prebuiltLinker)
 	androidMkWriteAllowUndefinedSymbols(p.baseLinker, ret)
 }

 func androidMkWriteAllowUndefinedSymbols(linker *baseLinker, ret *android.AndroidMkData) {
 	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
 		allow := linker.Properties.Allow_undefined_symbols
 		if allow != nil {
 			fmt.Fprintln(w, "LOCAL_ALLOW_UNDEFINED_SYMBOLS :=", *allow)
 		}
 	})
 }
	// Copyright 2015 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 cc

	import (
	"fmt"
	"io"
	"path/filepath"
	"strings"

	"android/soong/android"
	)

	var (
	vendorSuffix = ".vendor"
	recoverySuffix = ".recovery"
	)

	type AndroidMkContext interface {
	Name() string
	Target() android.Target
	subAndroidMk(*android.AndroidMkData, interface{})
	Arch() android.Arch
	Os() android.OsType
	Host() bool
	useVndk() bool
	static() bool
	inRecovery() bool
	}

	type subAndroidMkProvider interface {
	AndroidMk(AndroidMkContext, *android.AndroidMkData)
	}

	func (c Module) subAndroidMk(data android.AndroidMkData, obj interface{}) {
	if c.subAndroidMkOnce == nil {
	c.subAndroidMkOnce = make(map[subAndroidMkProvider]bool)
	}
	if androidmk, ok := obj.(subAndroidMkProvider); ok {
	if !c.subAndroidMkOnce[androidmk] {
	c.subAndroidMkOnce[androidmk] = true
	androidmk.AndroidMk(c, data)
	}
	}
	}

	func (c *Module) AndroidMk() android.AndroidMkData {
	if c.Properties.HideFromMake \|\| !c.IsForPlatform() {
	return android.AndroidMkData{
	Disabled: true,
	}
	}

	ret := android.AndroidMkData{
	OutputFile: c.outputFile,
	// TODO(jiyong): add the APEXes providing shared libs to the required modules
	// Currently, adding c.Properties.ApexesProvidingSharedLibs is causing multiple
	// runtime APEXes (com.android.runtime.debug\|release) to be installed. And this
	// is breaking some older devices (like marlin) where system.img is small.
	Required: c.Properties.AndroidMkRuntimeLibs,
	Include: "$(BUILD_SYSTEM)/soong_cc_prebuilt.mk",

	Extra: []android.AndroidMkExtraFunc{
	func(w io.Writer, outputFile android.Path) {
	if len(c.Properties.Logtags) > 0 {
	fmt.Fprintln(w, "LOCAL_LOGTAGS_FILES :=", strings.Join(c.Properties.Logtags, " "))
	}
	if len(c.Properties.AndroidMkSharedLibs) > 0 {
	fmt.Fprintln(w, "LOCAL_SHARED_LIBRARIES := "+strings.Join(c.Properties.AndroidMkSharedLibs, " "))
	}
	if len(c.Properties.AndroidMkStaticLibs) > 0 {
	fmt.Fprintln(w, "LOCAL_STATIC_LIBRARIES := "+strings.Join(c.Properties.AndroidMkStaticLibs, " "))
	}
	if len(c.Properties.AndroidMkWholeStaticLibs) > 0 {
	fmt.Fprintln(w, "LOCAL_WHOLE_STATIC_LIBRARIES := "+strings.Join(c.Properties.AndroidMkWholeStaticLibs, " "))
	}
	fmt.Fprintln(w, "LOCAL_SOONG_LINK_TYPE :=", c.getMakeLinkType())
	if c.useVndk() {
	fmt.Fprintln(w, "LOCAL_USE_VNDK := true")
	}
	},
	},
	}

	for _, feature := range c.features {
	c.subAndroidMk(&ret, feature)
	}

	c.subAndroidMk(&ret, c.compiler)
	c.subAndroidMk(&ret, c.linker)
	if c.sanitize != nil {
	c.subAndroidMk(&ret, c.sanitize)
	}
	c.subAndroidMk(&ret, c.installer)

	if c.useVndk() && c.hasVendorVariant() {
	// .vendor suffix is added only when we will have two variants: core and vendor.
	// The suffix is not added for vendor-only module.
	ret.SubName += vendorSuffix
	} else if c.inRecovery() && !c.onlyInRecovery() {
	ret.SubName += recoverySuffix
	}

	return ret
	}

	func androidMkWriteTestData(data android.Paths, ctx AndroidMkContext, ret *android.AndroidMkData) {
	var testFiles []string
	for _, d := range data {
	rel := d.Rel()
	path := d.String()
	if !strings.HasSuffix(path, rel) {
	panic(fmt.Errorf("path %q does not end with %q", path, rel))
	}
	path = strings.TrimSuffix(path, rel)
	testFiles = append(testFiles, path+":"+rel)
	}
	if len(testFiles) > 0 {
	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	fmt.Fprintln(w, "LOCAL_TEST_DATA := "+strings.Join(testFiles, " "))
	})
	}
	}

	func (library *libraryDecorator) androidMkWriteExportedFlags(w io.Writer) {
	exportedFlags := library.exportedFlags()
	if len(exportedFlags) > 0 {
	fmt.Fprintln(w, "LOCAL_EXPORT_CFLAGS :=", strings.Join(exportedFlags, " "))
	}
	exportedFlagsDeps := library.exportedFlagsDeps()
	if len(exportedFlagsDeps) > 0 {
	fmt.Fprintln(w, "LOCAL_EXPORT_C_INCLUDE_DEPS :=", strings.Join(exportedFlagsDeps.Strings(), " "))
	}
	}

	func (library libraryDecorator) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	if library.static() {
	ret.Class = "STATIC_LIBRARIES"
	} else if library.shared() {
	ret.Class = "SHARED_LIBRARIES"
	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	fmt.Fprintln(w, "LOCAL_SOONG_TOC :=", library.toc().String())
	if !library.buildStubs() {
	fmt.Fprintln(w, "LOCAL_SOONG_UNSTRIPPED_BINARY :=", library.unstrippedOutputFile.String())
	}
	if len(library.Properties.Overrides) > 0 {
	fmt.Fprintln(w, "LOCAL_OVERRIDES_MODULES := "+strings.Join(library.Properties.Overrides, " "))
	}
	if len(library.post_install_cmds) > 0 {
	fmt.Fprintln(w, "LOCAL_POST_INSTALL_CMD := "+strings.Join(library.post_install_cmds, "&& "))
	}
	})
	} else if library.header() {
	ret.Class = "HEADER_LIBRARIES"
	}

	ret.DistFile = library.distFile
	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	library.androidMkWriteExportedFlags(w)
	fmt.Fprintln(w, "LOCAL_ADDITIONAL_DEPENDENCIES := ")
	if library.sAbiOutputFile.Valid() {
	fmt.Fprintln(w, "LOCAL_ADDITIONAL_DEPENDENCIES += ", library.sAbiOutputFile.String())
	if library.sAbiDiff.Valid() && !library.static() {
	fmt.Fprintln(w, "LOCAL_ADDITIONAL_DEPENDENCIES += ", library.sAbiDiff.String())
	fmt.Fprintln(w, "HEADER_ABI_DIFFS += ", library.sAbiDiff.String())
	}
	}

	_, _, ext := splitFileExt(outputFile.Base())

	fmt.Fprintln(w, "LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE)"+ext)

	if library.coverageOutputFile.Valid() {
	fmt.Fprintln(w, "LOCAL_PREBUILT_COVERAGE_ARCHIVE :=", library.coverageOutputFile.String())
	}

	if library.useCoreVariant {
	fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
	fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
	fmt.Fprintln(w, "LOCAL_VNDK_DEPEND_ON_CORE_VARIANT := true")
	}
	})

	if library.shared() && !library.buildStubs() {
	ctx.subAndroidMk(ret, library.baseInstaller)
	} else {
	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
	if library.buildStubs() {
	fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
	}
	})
	}
	if len(library.Properties.Stubs.Versions) > 0 &&
	android.DirectlyInAnyApex(ctx, ctx.Name()) && !ctx.inRecovery() && !ctx.useVndk() &&
	!ctx.static() {
	if !library.buildStubs() {
	ret.SubName = ".bootstrap"
	}
	}
	}

	func (object objectLinker) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ret.Custom = func(w io.Writer, name, prefix, moduleDir string, data android.AndroidMkData) {
	out := ret.OutputFile.Path()
	varname := fmt.Sprintf("SOONG_%sOBJECT_%s%s", prefix, name, data.SubName)

	fmt.Fprintf(w, "\n%s := %s\n", varname, out.String())
	fmt.Fprintln(w, ".KATI_READONLY: "+varname)
	}
	}

	func (binary binaryDecorator) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ctx.subAndroidMk(ret, binary.baseInstaller)

	ret.Class = "EXECUTABLES"
	ret.DistFile = binary.distFile
	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	fmt.Fprintln(w, "LOCAL_SOONG_UNSTRIPPED_BINARY :=", binary.unstrippedOutputFile.String())
	if len(binary.symlinks) > 0 {
	fmt.Fprintln(w, "LOCAL_MODULE_SYMLINKS := "+strings.Join(binary.symlinks, " "))
	}

	if binary.coverageOutputFile.Valid() {
	fmt.Fprintln(w, "LOCAL_PREBUILT_COVERAGE_ARCHIVE :=", binary.coverageOutputFile.String())
	}

	if len(binary.Properties.Overrides) > 0 {
	fmt.Fprintln(w, "LOCAL_OVERRIDES_MODULES := "+strings.Join(binary.Properties.Overrides, " "))
	}
	if len(binary.post_install_cmds) > 0 {
	fmt.Fprintln(w, "LOCAL_POST_INSTALL_CMD := "+strings.Join(binary.post_install_cmds, "&& "))
	}
	})
	}

	func (benchmark benchmarkDecorator) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ctx.subAndroidMk(ret, benchmark.binaryDecorator)
	ret.Class = "NATIVE_TESTS"
	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	if len(benchmark.Properties.Test_suites) > 0 {
	fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE :=",
	strings.Join(benchmark.Properties.Test_suites, " "))
	}
	if benchmark.testConfig != nil {
	fmt.Fprintln(w, "LOCAL_FULL_TEST_CONFIG :=", benchmark.testConfig.String())
	}
	fmt.Fprintln(w, "LOCAL_NATIVE_BENCHMARK := true")
	})

	androidMkWriteTestData(benchmark.data, ctx, ret)
	}

	func (test testBinary) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ctx.subAndroidMk(ret, test.binaryDecorator)
	ret.Class = "NATIVE_TESTS"
	if Bool(test.Properties.Test_per_src) {
	ret.SubName = "_" + String(test.binaryDecorator.Properties.Stem)
	}

	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	if len(test.Properties.Test_suites) > 0 {
	fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE :=",
	strings.Join(test.Properties.Test_suites, " "))
	}
	if test.testConfig != nil {
	fmt.Fprintln(w, "LOCAL_FULL_TEST_CONFIG :=", test.testConfig.String())
	}
	})

	androidMkWriteTestData(test.data, ctx, ret)
	}

	func (test testLibrary) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ctx.subAndroidMk(ret, test.libraryDecorator)
	}

	func (library toolchainLibraryDecorator) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ret.Class = "STATIC_LIBRARIES"
	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	_, suffix, _ := splitFileExt(outputFile.Base())
	fmt.Fprintln(w, "LOCAL_MODULE_SUFFIX := "+suffix)
	})
	}

	func (installer baseInstaller) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	// Soong installation is only supported for host modules. Have Make
	// installation trigger Soong installation.
	if ctx.Target().Os.Class == android.Host {
	ret.OutputFile = android.OptionalPathForPath(installer.path)
	}

	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	path := installer.path.RelPathString()
	dir, file := filepath.Split(path)
	stem, suffix, _ := splitFileExt(file)
	fmt.Fprintln(w, "LOCAL_MODULE_SUFFIX := "+suffix)
	fmt.Fprintln(w, "LOCAL_MODULE_PATH := $(OUT_DIR)/"+filepath.Clean(dir))
	fmt.Fprintln(w, "LOCAL_MODULE_STEM := "+stem)
	})
	}

	func (c stubDecorator) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ret.SubName = ndkLibrarySuffix + "." + c.properties.ApiLevel
	ret.Class = "SHARED_LIBRARIES"

	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	path, file := filepath.Split(c.installPath.String())
	stem, suffix, _ := splitFileExt(file)
	fmt.Fprintln(w, "LOCAL_MODULE_SUFFIX := "+suffix)
	fmt.Fprintln(w, "LOCAL_MODULE_PATH := "+path)
	fmt.Fprintln(w, "LOCAL_MODULE_STEM := "+stem)
	fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
	})
	}

	func (c llndkStubDecorator) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ret.Class = "SHARED_LIBRARIES"
	ret.SubName = vendorSuffix

	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	c.libraryDecorator.androidMkWriteExportedFlags(w)
	_, _, ext := splitFileExt(outputFile.Base())

	fmt.Fprintln(w, "LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE)"+ext)
	fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
	fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
	fmt.Fprintln(w, "LOCAL_SOONG_TOC :=", c.toc().String())
	})
	}

	func (c vndkPrebuiltLibraryDecorator) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ret.Class = "SHARED_LIBRARIES"

	ret.SubName = c.NameSuffix()

	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	c.libraryDecorator.androidMkWriteExportedFlags(w)

	path := c.path.RelPathString()
	dir, file := filepath.Split(path)
	stem, suffix, ext := splitFileExt(file)
	fmt.Fprintln(w, "LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE)"+ext)
	fmt.Fprintln(w, "LOCAL_MODULE_SUFFIX := "+suffix)
	fmt.Fprintln(w, "LOCAL_MODULE_PATH := $(OUT_DIR)/"+filepath.Clean(dir))
	fmt.Fprintln(w, "LOCAL_MODULE_STEM := "+stem)
	})
	}

	func (c ndkPrebuiltStlLinker) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ret.Class = "SHARED_LIBRARIES"
	}

	func (c vendorPublicLibraryStubDecorator) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ret.Class = "SHARED_LIBRARIES"
	ret.SubName = vendorPublicLibrarySuffix

	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	c.libraryDecorator.androidMkWriteExportedFlags(w)
	_, _, ext := splitFileExt(outputFile.Base())

	fmt.Fprintln(w, "LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE)"+ext)
	fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
	fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
	})
	}

	func (p prebuiltLinker) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	if p.properties.Check_elf_files != nil {
	fmt.Fprintln(w, "LOCAL_CHECK_ELF_FILES :=", *p.properties.Check_elf_files)
	} else {
	// soong_cc_prebuilt.mk does not include check_elf_file.mk by default
	// because cc_library_shared and cc_binary use soong_cc_prebuilt.mk as well.
	// In order to turn on prebuilt ABI checker, set `LOCAL_CHECK_ELF_FILES` to
	// true if `p.properties.Check_elf_files` is not specified.
	fmt.Fprintln(w, "LOCAL_CHECK_ELF_FILES := true")
	}
	})
	}

	func (p prebuiltLibraryLinker) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ctx.subAndroidMk(ret, p.libraryDecorator)
	if p.shared() {
	ctx.subAndroidMk(ret, &p.prebuiltLinker)
	androidMkWriteAllowUndefinedSymbols(p.baseLinker, ret)
	}
	}

	func (p prebuiltBinaryLinker) AndroidMk(ctx AndroidMkContext, ret android.AndroidMkData) {
	ctx.subAndroidMk(ret, p.binaryDecorator)
	ctx.subAndroidMk(ret, &p.prebuiltLinker)
	androidMkWriteAllowUndefinedSymbols(p.baseLinker, ret)
	}

	func androidMkWriteAllowUndefinedSymbols(linker baseLinker, ret android.AndroidMkData) {
	ret.Extra = append(ret.Extra, func(w io.Writer, outputFile android.Path) {
	allow := linker.Properties.Allow_undefined_symbols
	if allow != nil {
	fmt.Fprintln(w, "LOCAL_ALLOW_UNDEFINED_SYMBOLS :=", *allow)
	}
	})
	}