platform_build_soong/apex/androidmk.go
Jiyong Park c0ec6f99d7 Documenting apex/apex.go
Mostly documentation changes, but includes a few refactorings like
changing the variable names, reording functions, reordering statements
in logical order, etc.

Bug: 173472337
Test: m

Change-Id: Ie1799c0972d63da823ad375f008018de782529d1
2020-11-24 09:28:50 +09:00

427 lines
16 KiB
Go

// Copyright (C) 2019 The Android Open Source Project
//
// 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 apex
import (
"fmt"
"io"
"path/filepath"
"strings"
"android/soong/android"
"android/soong/cc"
"android/soong/java"
"github.com/google/blueprint/proptools"
)
func (a *apexBundle) AndroidMk() android.AndroidMkData {
if a.properties.HideFromMake {
return android.AndroidMkData{
Disabled: true,
}
}
return a.androidMkForType()
}
// nameInMake converts apexFileClass into the corresponding class name in Make.
func (class apexFileClass) nameInMake() string {
switch class {
case etc:
return "ETC"
case nativeSharedLib:
return "SHARED_LIBRARIES"
case nativeExecutable, shBinary, pyBinary, goBinary:
return "EXECUTABLES"
case javaSharedLib:
return "JAVA_LIBRARIES"
case nativeTest:
return "NATIVE_TESTS"
case app, appSet:
// b/142537672 Why isn't this APP? We want to have full control over
// the paths and file names of the apk file under the flattend APEX.
// If this is set to APP, then the paths and file names are modified
// by the Make build system. For example, it is installed to
// /system/apex/<apexname>/app/<Appname>/<apexname>.<Appname>/ instead of
// /system/apex/<apexname>/app/<Appname> because the build system automatically
// appends module name (which is <apexname>.<Appname> to the path.
return "ETC"
default:
panic(fmt.Errorf("unknown class %d", class))
}
}
func (a *apexBundle) androidMkForFiles(w io.Writer, apexBundleName, apexName, moduleDir string,
apexAndroidMkData android.AndroidMkData) []string {
// apexBundleName comes from the 'name' property; apexName comes from 'apex_name' property.
// An apex is installed to /system/apex/<apexBundleName> and is activated at /apex/<apexName>
// In many cases, the two names are the same, but could be different in general.
moduleNames := []string{}
apexType := a.properties.ApexType
// To avoid creating duplicate build rules, run this function only when primaryApexType is true
// to install symbol files in $(PRODUCT_OUT}/apex.
// And if apexType is flattened, run this function to install files in $(PRODUCT_OUT}/system/apex.
if !a.primaryApexType && apexType != flattenedApex {
return moduleNames
}
// b/162366062. Prevent GKI APEXes to emit make rules to avoid conflicts.
if strings.HasPrefix(apexName, "com.android.gki.") && apexType != flattenedApex {
return moduleNames
}
// b/140136207. When there are overriding APEXes for a VNDK APEX, the symbols file for the overridden
// APEX and the overriding APEX will have the same installation paths at /apex/com.android.vndk.v<ver>
// as their apexName will be the same. To avoid the path conflicts, skip installing the symbol files
// for the overriding VNDK APEXes.
symbolFilesNotNeeded := a.vndkApex && len(a.overridableProperties.Overrides) > 0
if symbolFilesNotNeeded && apexType != flattenedApex {
return moduleNames
}
var postInstallCommands []string
for _, fi := range a.filesInfo {
if a.linkToSystemLib && fi.transitiveDep && fi.availableToPlatform() {
// TODO(jiyong): pathOnDevice should come from fi.module, not being calculated here
linkTarget := filepath.Join("/system", fi.path())
linkPath := filepath.Join(a.installDir.ToMakePath().String(), apexBundleName, fi.path())
mkdirCmd := "mkdir -p " + filepath.Dir(linkPath)
linkCmd := "ln -sfn " + linkTarget + " " + linkPath
postInstallCommands = append(postInstallCommands, mkdirCmd, linkCmd)
}
}
seenDataOutPaths := make(map[string]bool)
for _, fi := range a.filesInfo {
if ccMod, ok := fi.module.(*cc.Module); ok && ccMod.Properties.HideFromMake {
continue
}
linkToSystemLib := a.linkToSystemLib && fi.transitiveDep && fi.availableToPlatform()
var moduleName string
if linkToSystemLib {
moduleName = fi.androidMkModuleName
} else {
moduleName = fi.androidMkModuleName + "." + apexBundleName + a.suffix
}
if !android.InList(moduleName, moduleNames) {
moduleNames = append(moduleNames, moduleName)
}
if linkToSystemLib {
// No need to copy the file since it's linked to the system file
continue
}
fmt.Fprintln(w, "\ninclude $(CLEAR_VARS)")
if fi.moduleDir != "" {
fmt.Fprintln(w, "LOCAL_PATH :=", fi.moduleDir)
} else {
fmt.Fprintln(w, "LOCAL_PATH :=", moduleDir)
}
fmt.Fprintln(w, "LOCAL_MODULE :=", moduleName)
if fi.module != nil && fi.module.Owner() != "" {
fmt.Fprintln(w, "LOCAL_MODULE_OWNER :=", fi.module.Owner())
}
// /apex/<apex_name>/{lib|framework|...}
pathWhenActivated := filepath.Join("$(PRODUCT_OUT)", "apex", apexName, fi.installDir)
var modulePath string
if apexType == flattenedApex {
// /system/apex/<name>/{lib|framework|...}
modulePath = filepath.Join(a.installDir.ToMakePath().String(), apexBundleName, fi.installDir)
fmt.Fprintln(w, "LOCAL_MODULE_PATH :=", modulePath)
if a.primaryApexType && !symbolFilesNotNeeded {
fmt.Fprintln(w, "LOCAL_SOONG_SYMBOL_PATH :=", pathWhenActivated)
}
if len(fi.symlinks) > 0 {
fmt.Fprintln(w, "LOCAL_MODULE_SYMLINKS :=", strings.Join(fi.symlinks, " "))
}
newDataPaths := []android.DataPath{}
for _, path := range fi.dataPaths {
dataOutPath := modulePath + ":" + path.SrcPath.Rel()
if ok := seenDataOutPaths[dataOutPath]; !ok {
newDataPaths = append(newDataPaths, path)
seenDataOutPaths[dataOutPath] = true
}
}
if len(newDataPaths) > 0 {
fmt.Fprintln(w, "LOCAL_TEST_DATA :=", strings.Join(android.AndroidMkDataPaths(newDataPaths), " "))
}
if fi.module != nil && len(fi.module.NoticeFiles()) > 0 {
fmt.Fprintln(w, "LOCAL_NOTICE_FILE :=", strings.Join(fi.module.NoticeFiles().Strings(), " "))
}
} else {
modulePath = pathWhenActivated
fmt.Fprintln(w, "LOCAL_MODULE_PATH :=", pathWhenActivated)
// For non-flattend APEXes, the merged notice file is attached to the APEX itself.
// We don't need to have notice file for the individual modules in it. Otherwise,
// we will have duplicated notice entries.
fmt.Fprintln(w, "LOCAL_NO_NOTICE_FILE := true")
}
fmt.Fprintln(w, "LOCAL_PREBUILT_MODULE_FILE :=", fi.builtFile.String())
fmt.Fprintln(w, "LOCAL_MODULE_CLASS :=", fi.class.nameInMake())
if fi.module != nil {
archStr := fi.module.Target().Arch.ArchType.String()
host := false
switch fi.module.Target().Os.Class {
case android.Host:
if fi.module.Target().HostCross {
if fi.module.Target().Arch.ArchType != android.Common {
fmt.Fprintln(w, "LOCAL_MODULE_HOST_CROSS_ARCH :=", archStr)
}
} else {
if fi.module.Target().Arch.ArchType != android.Common {
fmt.Fprintln(w, "LOCAL_MODULE_HOST_ARCH :=", archStr)
}
}
host = true
case android.Device:
if fi.module.Target().Arch.ArchType != android.Common {
fmt.Fprintln(w, "LOCAL_MODULE_TARGET_ARCH :=", archStr)
}
}
if host {
makeOs := fi.module.Target().Os.String()
if fi.module.Target().Os == android.Linux || fi.module.Target().Os == android.LinuxBionic {
makeOs = "linux"
}
fmt.Fprintln(w, "LOCAL_MODULE_HOST_OS :=", makeOs)
fmt.Fprintln(w, "LOCAL_IS_HOST_MODULE := true")
}
}
if fi.jacocoReportClassesFile != nil {
fmt.Fprintln(w, "LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR :=", fi.jacocoReportClassesFile.String())
}
switch fi.class {
case javaSharedLib:
// soong_java_prebuilt.mk sets LOCAL_MODULE_SUFFIX := .jar Therefore
// we need to remove the suffix from LOCAL_MODULE_STEM, otherwise
// we will have foo.jar.jar
fmt.Fprintln(w, "LOCAL_MODULE_STEM :=", strings.TrimSuffix(fi.stem(), ".jar"))
if javaModule, ok := fi.module.(java.ApexDependency); ok {
fmt.Fprintln(w, "LOCAL_SOONG_CLASSES_JAR :=", javaModule.ImplementationAndResourcesJars()[0].String())
fmt.Fprintln(w, "LOCAL_SOONG_HEADER_JAR :=", javaModule.HeaderJars()[0].String())
} else {
fmt.Fprintln(w, "LOCAL_SOONG_CLASSES_JAR :=", fi.builtFile.String())
fmt.Fprintln(w, "LOCAL_SOONG_HEADER_JAR :=", fi.builtFile.String())
}
fmt.Fprintln(w, "LOCAL_SOONG_DEX_JAR :=", fi.builtFile.String())
fmt.Fprintln(w, "LOCAL_DEX_PREOPT := false")
fmt.Fprintln(w, "include $(BUILD_SYSTEM)/soong_java_prebuilt.mk")
case app:
fmt.Fprintln(w, "LOCAL_CERTIFICATE :=", fi.certificate.AndroidMkString())
// soong_app_prebuilt.mk sets LOCAL_MODULE_SUFFIX := .apk Therefore
// we need to remove the suffix from LOCAL_MODULE_STEM, otherwise
// we will have foo.apk.apk
fmt.Fprintln(w, "LOCAL_MODULE_STEM :=", strings.TrimSuffix(fi.stem(), ".apk"))
if app, ok := fi.module.(*java.AndroidApp); ok {
if jniCoverageOutputs := app.JniCoverageOutputs(); len(jniCoverageOutputs) > 0 {
fmt.Fprintln(w, "LOCAL_PREBUILT_COVERAGE_ARCHIVE :=", strings.Join(jniCoverageOutputs.Strings(), " "))
}
if jniLibSymbols := app.JNISymbolsInstalls(modulePath); len(jniLibSymbols) > 0 {
fmt.Fprintln(w, "LOCAL_SOONG_JNI_LIBS_SYMBOLS :=", jniLibSymbols.String())
}
}
fmt.Fprintln(w, "include $(BUILD_SYSTEM)/soong_app_prebuilt.mk")
case appSet:
as, ok := fi.module.(*java.AndroidAppSet)
if !ok {
panic(fmt.Sprintf("Expected %s to be AndroidAppSet", fi.module))
}
fmt.Fprintln(w, "LOCAL_APK_SET_INSTALL_FILE :=", as.InstallFile())
fmt.Fprintln(w, "LOCAL_APKCERTS_FILE :=", as.APKCertsFile().String())
fmt.Fprintln(w, "include $(BUILD_SYSTEM)/soong_android_app_set.mk")
case nativeSharedLib, nativeExecutable, nativeTest:
fmt.Fprintln(w, "LOCAL_MODULE_STEM :=", fi.stem())
if ccMod, ok := fi.module.(*cc.Module); ok {
if ccMod.UnstrippedOutputFile() != nil {
fmt.Fprintln(w, "LOCAL_SOONG_UNSTRIPPED_BINARY :=", ccMod.UnstrippedOutputFile().String())
}
ccMod.AndroidMkWriteAdditionalDependenciesForSourceAbiDiff(w)
if ccMod.CoverageOutputFile().Valid() {
fmt.Fprintln(w, "LOCAL_PREBUILT_COVERAGE_ARCHIVE :=", ccMod.CoverageOutputFile().String())
}
}
fmt.Fprintln(w, "include $(BUILD_SYSTEM)/soong_cc_prebuilt.mk")
default:
fmt.Fprintln(w, "LOCAL_MODULE_STEM :=", fi.stem())
if fi.builtFile == a.manifestPbOut && apexType == flattenedApex {
if a.primaryApexType {
// To install companion files (init_rc, vintf_fragments)
// Copy some common properties of apexBundle to apex_manifest
commonProperties := []string{
"LOCAL_INIT_RC", "LOCAL_VINTF_FRAGMENTS",
}
for _, name := range commonProperties {
if value, ok := apexAndroidMkData.Entries.EntryMap[name]; ok {
fmt.Fprintln(w, name+" := "+strings.Join(value, " "))
}
}
// Make apex_manifest.pb module for this APEX to override all other
// modules in the APEXes being overridden by this APEX
var patterns []string
for _, o := range a.overridableProperties.Overrides {
patterns = append(patterns, "%."+o+a.suffix)
}
if len(patterns) > 0 {
fmt.Fprintln(w, "LOCAL_OVERRIDES_MODULES :=", strings.Join(patterns, " "))
}
if len(a.compatSymlinks) > 0 {
// For flattened apexes, compat symlinks are attached to apex_manifest.json which is guaranteed for every apex
postInstallCommands = append(postInstallCommands, a.compatSymlinks...)
}
}
// File_contexts of flattened APEXes should be merged into file_contexts.bin
fmt.Fprintln(w, "LOCAL_FILE_CONTEXTS :=", a.fileContexts)
if len(postInstallCommands) > 0 {
fmt.Fprintln(w, "LOCAL_POST_INSTALL_CMD :=", strings.Join(postInstallCommands, " && "))
}
}
fmt.Fprintln(w, "include $(BUILD_PREBUILT)")
}
// m <module_name> will build <module_name>.<apex_name> as well.
if fi.androidMkModuleName != moduleName && a.primaryApexType {
fmt.Fprintf(w, ".PHONY: %s\n", fi.androidMkModuleName)
fmt.Fprintf(w, "%s: %s\n", fi.androidMkModuleName, moduleName)
}
}
return moduleNames
}
func (a *apexBundle) writeRequiredModules(w io.Writer) {
var required []string
var targetRequired []string
var hostRequired []string
for _, fi := range a.filesInfo {
required = append(required, fi.requiredModuleNames...)
targetRequired = append(targetRequired, fi.targetRequiredModuleNames...)
hostRequired = append(hostRequired, fi.hostRequiredModuleNames...)
}
if len(required) > 0 {
fmt.Fprintln(w, "LOCAL_REQUIRED_MODULES +=", strings.Join(required, " "))
}
if len(targetRequired) > 0 {
fmt.Fprintln(w, "LOCAL_TARGET_REQUIRED_MODULES +=", strings.Join(targetRequired, " "))
}
if len(hostRequired) > 0 {
fmt.Fprintln(w, "LOCAL_HOST_REQUIRED_MODULES +=", strings.Join(hostRequired, " "))
}
}
func (a *apexBundle) androidMkForType() android.AndroidMkData {
return android.AndroidMkData{
DistFiles: a.distFiles,
Custom: func(w io.Writer, name, prefix, moduleDir string, data android.AndroidMkData) {
moduleNames := []string{}
apexType := a.properties.ApexType
if a.installable() {
apexName := proptools.StringDefault(a.properties.Apex_name, name)
moduleNames = a.androidMkForFiles(w, name, apexName, moduleDir, data)
}
if apexType == flattenedApex {
// Only image APEXes can be flattened.
fmt.Fprintln(w, "\ninclude $(CLEAR_VARS)")
fmt.Fprintln(w, "LOCAL_PATH :=", moduleDir)
fmt.Fprintln(w, "LOCAL_MODULE :=", name+a.suffix)
if len(moduleNames) > 0 {
fmt.Fprintln(w, "LOCAL_REQUIRED_MODULES :=", strings.Join(moduleNames, " "))
}
a.writeRequiredModules(w)
fmt.Fprintln(w, "include $(BUILD_PHONY_PACKAGE)")
} else {
fmt.Fprintln(w, "\ninclude $(CLEAR_VARS)")
fmt.Fprintln(w, "LOCAL_PATH :=", moduleDir)
fmt.Fprintln(w, "LOCAL_MODULE :=", name+a.suffix)
fmt.Fprintln(w, "LOCAL_MODULE_CLASS := ETC") // do we need a new class?
fmt.Fprintln(w, "LOCAL_PREBUILT_MODULE_FILE :=", a.outputFile.String())
fmt.Fprintln(w, "LOCAL_MODULE_PATH :=", a.installDir.ToMakePath().String())
fmt.Fprintln(w, "LOCAL_MODULE_STEM :=", name+apexType.suffix())
fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE :=", !a.installable())
// Because apex writes .mk with Custom(), we need to write manually some common properties
// which are available via data.Entries
commonProperties := []string{
"LOCAL_INIT_RC", "LOCAL_VINTF_FRAGMENTS",
"LOCAL_PROPRIETARY_MODULE", "LOCAL_VENDOR_MODULE", "LOCAL_ODM_MODULE", "LOCAL_PRODUCT_MODULE", "LOCAL_SYSTEM_EXT_MODULE",
"LOCAL_MODULE_OWNER",
}
for _, name := range commonProperties {
if value, ok := data.Entries.EntryMap[name]; ok {
fmt.Fprintln(w, name+" := "+strings.Join(value, " "))
}
}
if len(a.overridableProperties.Overrides) > 0 {
fmt.Fprintln(w, "LOCAL_OVERRIDES_MODULES :=", strings.Join(a.overridableProperties.Overrides, " "))
}
if len(moduleNames) > 0 {
fmt.Fprintln(w, "LOCAL_REQUIRED_MODULES +=", strings.Join(moduleNames, " "))
}
if len(a.requiredDeps) > 0 {
fmt.Fprintln(w, "LOCAL_REQUIRED_MODULES +=", strings.Join(a.requiredDeps, " "))
}
a.writeRequiredModules(w)
var postInstallCommands []string
if a.prebuiltFileToDelete != "" {
postInstallCommands = append(postInstallCommands, "rm -rf "+
filepath.Join(a.installDir.ToMakePath().String(), a.prebuiltFileToDelete))
}
// For unflattened apexes, compat symlinks are attached to apex package itself as LOCAL_POST_INSTALL_CMD
postInstallCommands = append(postInstallCommands, a.compatSymlinks...)
if len(postInstallCommands) > 0 {
fmt.Fprintln(w, "LOCAL_POST_INSTALL_CMD :=", strings.Join(postInstallCommands, " && "))
}
if a.mergedNotices.Merged.Valid() {
fmt.Fprintln(w, "LOCAL_NOTICE_FILE :=", a.mergedNotices.Merged.Path().String())
}
fmt.Fprintln(w, "include $(BUILD_PREBUILT)")
if apexType == imageApex {
fmt.Fprintln(w, "ALL_MODULES.$(my_register_name).BUNDLE :=", a.bundleModuleFile.String())
}
if len(a.lintReports) > 0 {
fmt.Fprintln(w, "ALL_MODULES.$(my_register_name).LINT_REPORTS :=",
strings.Join(a.lintReports.Strings(), " "))
}
if a.installedFilesFile != nil {
goal := "checkbuild"
distFile := name + "-installed-files.txt"
fmt.Fprintln(w, ".PHONY:", goal)
fmt.Fprintf(w, "$(call dist-for-goals,%s,%s:%s)\n",
goal, a.installedFilesFile.String(), distFile)
}
for _, dist := range data.Entries.GetDistForGoals(a) {
fmt.Fprintf(w, dist)
}
}
}}
}