platform_build_soong/apex/builder.go

995 lines
40 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 (
"encoding/json"
"fmt"
"path"
"path/filepath"
"runtime"
"sort"
"strconv"
"strings"
"android/soong/android"
"android/soong/java"
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
)
var (
pctx = android.NewPackageContext("android/apex")
)
func init() {
pctx.Import("android/soong/android")
pctx.Import("android/soong/cc/config")
pctx.Import("android/soong/java")
pctx.HostBinToolVariable("apexer", "apexer")
// ART minimal builds (using the master-art manifest) do not have the "frameworks/base"
// projects, and hence cannot build 'aapt2'. Use the SDK prebuilt instead.
hostBinToolVariableWithPrebuilt := func(name, prebuiltDir, tool string) {
pctx.VariableFunc(name, func(ctx android.PackageVarContext) string {
if !ctx.Config().FrameworksBaseDirExists(ctx) {
return filepath.Join(prebuiltDir, runtime.GOOS, "bin", tool)
} else {
return ctx.Config().HostToolPath(ctx, tool).String()
}
})
}
hostBinToolVariableWithPrebuilt("aapt2", "prebuilts/sdk/tools", "aapt2")
pctx.HostBinToolVariable("avbtool", "avbtool")
pctx.HostBinToolVariable("e2fsdroid", "e2fsdroid")
pctx.HostBinToolVariable("merge_zips", "merge_zips")
pctx.HostBinToolVariable("mke2fs", "mke2fs")
pctx.HostBinToolVariable("resize2fs", "resize2fs")
pctx.HostBinToolVariable("sefcontext_compile", "sefcontext_compile")
pctx.HostBinToolVariable("soong_zip", "soong_zip")
pctx.HostBinToolVariable("zip2zip", "zip2zip")
pctx.HostBinToolVariable("zipalign", "zipalign")
pctx.HostBinToolVariable("jsonmodify", "jsonmodify")
pctx.HostBinToolVariable("conv_apex_manifest", "conv_apex_manifest")
pctx.HostBinToolVariable("extract_apks", "extract_apks")
pctx.HostBinToolVariable("make_f2fs", "make_f2fs")
pctx.HostBinToolVariable("sload_f2fs", "sload_f2fs")
pctx.HostBinToolVariable("apex_compression_tool", "apex_compression_tool")
pctx.SourcePathVariable("genNdkUsedbyApexPath", "build/soong/scripts/gen_ndk_usedby_apex.sh")
}
var (
// Create a canned fs config file where all files and directories are
// by default set to (uid/gid/mode) = (1000/1000/0644)
// TODO(b/113082813) make this configurable using config.fs syntax
generateFsConfig = pctx.StaticRule("generateFsConfig", blueprint.RuleParams{
Command: `( echo '/ 1000 1000 0755' ` +
`&& for i in ${ro_paths}; do echo "/$$i 1000 1000 0644"; done ` +
`&& for i in ${exec_paths}; do echo "/$$i 0 2000 0755"; done ` +
`&& ( tr ' ' '\n' <${out}.apklist | for i in ${apk_paths}; do read apk; echo "/$$i 0 2000 0755"; zipinfo -1 $$apk | sed "s:\(.*\):/$$i/\1 1000 1000 0644:"; done ) ) > ${out}`,
Description: "fs_config ${out}",
Rspfile: "$out.apklist",
RspfileContent: "$in",
}, "ro_paths", "exec_paths", "apk_paths")
apexManifestRule = pctx.StaticRule("apexManifestRule", blueprint.RuleParams{
Command: `rm -f $out && ${jsonmodify} $in ` +
`-a provideNativeLibs ${provideNativeLibs} ` +
`-a requireNativeLibs ${requireNativeLibs} ` +
`${opt} ` +
`-o $out`,
CommandDeps: []string{"${jsonmodify}"},
Description: "prepare ${out}",
}, "provideNativeLibs", "requireNativeLibs", "opt")
stripApexManifestRule = pctx.StaticRule("stripApexManifestRule", blueprint.RuleParams{
Command: `rm -f $out && ${conv_apex_manifest} strip $in -o $out`,
CommandDeps: []string{"${conv_apex_manifest}"},
Description: "strip ${in}=>${out}",
})
pbApexManifestRule = pctx.StaticRule("pbApexManifestRule", blueprint.RuleParams{
Command: `rm -f $out && ${conv_apex_manifest} proto $in -o $out`,
CommandDeps: []string{"${conv_apex_manifest}"},
Description: "convert ${in}=>${out}",
})
// TODO(b/113233103): make sure that file_contexts is sane, i.e., validate
// against the binary policy using sefcontext_compiler -p <policy>.
// TODO(b/114327326): automate the generation of file_contexts
apexRule = pctx.StaticRule("apexRule", blueprint.RuleParams{
Command: `rm -rf ${image_dir} && mkdir -p ${image_dir} && ` +
`(. ${out}.copy_commands) && ` +
`APEXER_TOOL_PATH=${tool_path} ` +
`${apexer} --force --manifest ${manifest} ` +
`--file_contexts ${file_contexts} ` +
`--canned_fs_config ${canned_fs_config} ` +
`--include_build_info ` +
`--payload_type image ` +
`--key ${key} ${opt_flags} ${image_dir} ${out} `,
CommandDeps: []string{"${apexer}", "${avbtool}", "${e2fsdroid}", "${merge_zips}",
"${mke2fs}", "${resize2fs}", "${sefcontext_compile}", "${make_f2fs}", "${sload_f2fs}",
"${soong_zip}", "${zipalign}", "${aapt2}", "prebuilts/sdk/current/public/android.jar"},
Rspfile: "${out}.copy_commands",
RspfileContent: "${copy_commands}",
Description: "APEX ${image_dir} => ${out}",
}, "tool_path", "image_dir", "copy_commands", "file_contexts", "canned_fs_config", "key", "opt_flags", "manifest", "payload_fs_type")
zipApexRule = pctx.StaticRule("zipApexRule", blueprint.RuleParams{
Command: `rm -rf ${image_dir} && mkdir -p ${image_dir} && ` +
`(. ${out}.copy_commands) && ` +
`APEXER_TOOL_PATH=${tool_path} ` +
`${apexer} --force --manifest ${manifest} ` +
`--payload_type zip ` +
`${image_dir} ${out} `,
CommandDeps: []string{"${apexer}", "${merge_zips}", "${soong_zip}", "${zipalign}", "${aapt2}"},
Rspfile: "${out}.copy_commands",
RspfileContent: "${copy_commands}",
Description: "ZipAPEX ${image_dir} => ${out}",
}, "tool_path", "image_dir", "copy_commands", "manifest")
apexProtoConvertRule = pctx.AndroidStaticRule("apexProtoConvertRule",
blueprint.RuleParams{
Command: `${aapt2} convert --output-format proto $in -o $out`,
CommandDeps: []string{"${aapt2}"},
})
apexBundleRule = pctx.StaticRule("apexBundleRule", blueprint.RuleParams{
Command: `${zip2zip} -i $in -o $out.base ` +
`apex_payload.img:apex/${abi}.img ` +
`apex_build_info.pb:apex/${abi}.build_info.pb ` +
`apex_manifest.json:root/apex_manifest.json ` +
`apex_manifest.pb:root/apex_manifest.pb ` +
`AndroidManifest.xml:manifest/AndroidManifest.xml ` +
`assets/NOTICE.html.gz:assets/NOTICE.html.gz &&` +
`${soong_zip} -o $out.config -C $$(dirname ${config}) -f ${config} && ` +
`${merge_zips} $out $out.base $out.config`,
CommandDeps: []string{"${zip2zip}", "${soong_zip}", "${merge_zips}"},
Description: "app bundle",
}, "abi", "config")
emitApexContentRule = pctx.StaticRule("emitApexContentRule", blueprint.RuleParams{
Command: `rm -f ${out} && touch ${out} && (. ${out}.emit_commands)`,
Rspfile: "${out}.emit_commands",
RspfileContent: "${emit_commands}",
Description: "Emit APEX image content",
}, "emit_commands")
diffApexContentRule = pctx.StaticRule("diffApexContentRule", blueprint.RuleParams{
Command: `diff --unchanged-group-format='' \` +
`--changed-group-format='%<' \` +
`${image_content_file} ${allowed_files_file} || (` +
`echo -e "New unexpected files were added to ${apex_module_name}." ` +
` "To fix the build run following command:" && ` +
`echo "system/apex/tools/update_allowed_list.sh ${allowed_files_file} ${image_content_file}" && ` +
`exit 1); touch ${out}`,
Description: "Diff ${image_content_file} and ${allowed_files_file}",
}, "image_content_file", "allowed_files_file", "apex_module_name")
generateAPIsUsedbyApexRule = pctx.StaticRule("generateAPIsUsedbyApexRule", blueprint.RuleParams{
Command: "$genNdkUsedbyApexPath ${image_dir} ${readelf} ${out}",
CommandDeps: []string{"${genNdkUsedbyApexPath}"},
Description: "Generate symbol list used by Apex",
}, "image_dir", "readelf")
// Don't add more rules here. Consider using android.NewRuleBuilder instead.
)
// buildManifest creates buile rules to modify the input apex_manifest.json to add information
// gathered by the build system such as provided/required native libraries. Two output files having
// different formats are generated. a.manifestJsonOut is JSON format for Q devices, and
// a.manifest.PbOut is protobuf format for R+ devices.
// TODO(jiyong): make this to return paths instead of directly storing the paths to apexBundle
func (a *apexBundle) buildManifest(ctx android.ModuleContext, provideNativeLibs, requireNativeLibs []string) {
src := android.PathForModuleSrc(ctx, proptools.StringDefault(a.properties.Manifest, "apex_manifest.json"))
// Put dependency({provide|require}NativeLibs) in apex_manifest.json
provideNativeLibs = android.SortedUniqueStrings(provideNativeLibs)
requireNativeLibs = android.SortedUniqueStrings(android.RemoveListFromList(requireNativeLibs, provideNativeLibs))
// APEX name can be overridden
optCommands := []string{}
if a.properties.Apex_name != nil {
optCommands = append(optCommands, "-v name "+*a.properties.Apex_name)
}
// Collect jniLibs. Notice that a.filesInfo is already sorted
var jniLibs []string
for _, fi := range a.filesInfo {
if fi.isJniLib && !android.InList(fi.stem(), jniLibs) {
jniLibs = append(jniLibs, fi.stem())
}
}
if len(jniLibs) > 0 {
optCommands = append(optCommands, "-a jniLibs "+strings.Join(jniLibs, " "))
}
manifestJsonFullOut := android.PathForModuleOut(ctx, "apex_manifest_full.json")
ctx.Build(pctx, android.BuildParams{
Rule: apexManifestRule,
Input: src,
Output: manifestJsonFullOut,
Args: map[string]string{
"provideNativeLibs": strings.Join(provideNativeLibs, " "),
"requireNativeLibs": strings.Join(requireNativeLibs, " "),
"opt": strings.Join(optCommands, " "),
},
})
// b/143654022 Q apexd can't understand newly added keys in apex_manifest.json prepare
// stripped-down version so that APEX modules built from R+ can be installed to Q
minSdkVersion := a.minSdkVersion(ctx)
if minSdkVersion.EqualTo(android.SdkVersion_Android10) {
a.manifestJsonOut = android.PathForModuleOut(ctx, "apex_manifest.json")
ctx.Build(pctx, android.BuildParams{
Rule: stripApexManifestRule,
Input: manifestJsonFullOut,
Output: a.manifestJsonOut,
})
}
// From R+, protobuf binary format (.pb) is the standard format for apex_manifest
a.manifestPbOut = android.PathForModuleOut(ctx, "apex_manifest.pb")
ctx.Build(pctx, android.BuildParams{
Rule: pbApexManifestRule,
Input: manifestJsonFullOut,
Output: a.manifestPbOut,
})
}
// buildFileContexts create build rules to append an entry for apex_manifest.pb to the file_contexts
// file for this APEX which is either from /systme/sepolicy/apex/<apexname>-file_contexts or from
// the file_contexts property of this APEX. This is to make sure that the manifest file is correctly
// labeled as system_file.
func (a *apexBundle) buildFileContexts(ctx android.ModuleContext) android.OutputPath {
var fileContexts android.Path
if a.properties.File_contexts == nil {
fileContexts = android.PathForSource(ctx, "system/sepolicy/apex", ctx.ModuleName()+"-file_contexts")
} else {
fileContexts = android.PathForModuleSrc(ctx, *a.properties.File_contexts)
}
if a.Platform() {
if matched, err := path.Match("system/sepolicy/**/*", fileContexts.String()); err != nil || !matched {
ctx.PropertyErrorf("file_contexts", "should be under system/sepolicy, but %q", fileContexts)
}
}
if !android.ExistentPathForSource(ctx, fileContexts.String()).Valid() {
ctx.PropertyErrorf("file_contexts", "cannot find file_contexts file: %q", fileContexts.String())
}
output := android.PathForModuleOut(ctx, "file_contexts")
rule := android.NewRuleBuilder(pctx, ctx)
switch a.properties.ApexType {
case imageApex:
// remove old file
rule.Command().Text("rm").FlagWithOutput("-f ", output)
// copy file_contexts
rule.Command().Text("cat").Input(fileContexts).Text(">>").Output(output)
// new line
rule.Command().Text("echo").Text(">>").Output(output)
// force-label /apex_manifest.pb and / as system_file so that apexd can read them
rule.Command().Text("echo").Flag("/apex_manifest\\\\.pb u:object_r:system_file:s0").Text(">>").Output(output)
rule.Command().Text("echo").Flag("/ u:object_r:system_file:s0").Text(">>").Output(output)
case flattenedApex:
// For flattened apexes, install path should be prepended.
// File_contexts file should be emiited to make via LOCAL_FILE_CONTEXTS
// so that it can be merged into file_contexts.bin
apexPath := android.InstallPathToOnDevicePath(ctx, a.installDir.Join(ctx, a.Name()))
apexPath = strings.ReplaceAll(apexPath, ".", `\\.`)
// remove old file
rule.Command().Text("rm").FlagWithOutput("-f ", output)
// copy file_contexts
rule.Command().Text("awk").Text(`'/object_r/{printf("` + apexPath + `%s\n", $0)}'`).Input(fileContexts).Text(">").Output(output)
// new line
rule.Command().Text("echo").Text(">>").Output(output)
// force-label /apex_manifest.pb and / as system_file so that apexd can read them
rule.Command().Text("echo").Flag(apexPath + `/apex_manifest\\.pb u:object_r:system_file:s0`).Text(">>").Output(output)
rule.Command().Text("echo").Flag(apexPath + "/ u:object_r:system_file:s0").Text(">>").Output(output)
default:
panic(fmt.Errorf("unsupported type %v", a.properties.ApexType))
}
rule.Build("file_contexts."+a.Name(), "Generate file_contexts")
return output.OutputPath
}
// buildNoticeFiles creates a buile rule for aggregating notice files from the modules that
// contributes to this APEX. The notice files are merged into a big notice file.
func (a *apexBundle) buildNoticeFiles(ctx android.ModuleContext, apexFileName string) android.NoticeOutputs {
var noticeFiles android.Paths
a.WalkPayloadDeps(ctx, func(ctx android.ModuleContext, from blueprint.Module, to android.ApexModule, externalDep bool) bool {
if externalDep {
// As soon as the dependency graph crosses the APEX boundary, don't go further.
return false
}
noticeFiles = append(noticeFiles, to.NoticeFiles()...)
return true
})
// TODO(jiyong): why do we need this? WalkPayloadDeps should have already covered this.
for _, fi := range a.filesInfo {
noticeFiles = append(noticeFiles, fi.noticeFiles...)
}
if len(noticeFiles) == 0 {
return android.NoticeOutputs{}
}
return android.BuildNoticeOutput(ctx, a.installDir, apexFileName, android.SortedUniquePaths(noticeFiles))
}
// buildInstalledFilesFile creates a build rule for the installed-files.txt file where the list of
// files included in this APEX is shown. The text file is dist'ed so that people can see what's
// included in the APEX without actually downloading and extracting it.
func (a *apexBundle) buildInstalledFilesFile(ctx android.ModuleContext, builtApex android.Path, imageDir android.Path) android.OutputPath {
output := android.PathForModuleOut(ctx, "installed-files.txt")
rule := android.NewRuleBuilder(pctx, ctx)
rule.Command().
Implicit(builtApex).
Text("(cd " + imageDir.String() + " ; ").
Text("find . \\( -type f -o -type l \\) -printf \"%s %p\\n\") ").
Text(" | sort -nr > ").
Output(output)
rule.Build("installed-files."+a.Name(), "Installed files")
return output.OutputPath
}
// buildBundleConfig creates a build rule for the bundle config file that will control the bundle
// creation process.
func (a *apexBundle) buildBundleConfig(ctx android.ModuleContext) android.OutputPath {
output := android.PathForModuleOut(ctx, "bundle_config.json")
type ApkConfig struct {
Package_name string `json:"package_name"`
Apk_path string `json:"path"`
}
config := struct {
Compression struct {
Uncompressed_glob []string `json:"uncompressed_glob"`
} `json:"compression"`
Apex_config struct {
Apex_embedded_apk_config []ApkConfig `json:"apex_embedded_apk_config,omitempty"`
} `json:"apex_config,omitempty"`
}{}
config.Compression.Uncompressed_glob = []string{
"apex_payload.img",
"apex_manifest.*",
}
// Collect the manifest names and paths of android apps if their manifest names are
// overridden.
for _, fi := range a.filesInfo {
if fi.class != app && fi.class != appSet {
continue
}
packageName := fi.overriddenPackageName
if packageName != "" {
config.Apex_config.Apex_embedded_apk_config = append(
config.Apex_config.Apex_embedded_apk_config,
ApkConfig{
Package_name: packageName,
Apk_path: fi.path(),
})
}
}
j, err := json.Marshal(config)
if err != nil {
panic(fmt.Errorf("error while marshalling to %q: %#v", output, err))
}
android.WriteFileRule(ctx, output, string(j))
return output.OutputPath
}
// buildUnflattendApex creates build rules to build an APEX using apexer.
func (a *apexBundle) buildUnflattenedApex(ctx android.ModuleContext) {
apexType := a.properties.ApexType
suffix := apexType.suffix()
////////////////////////////////////////////////////////////////////////////////////////////
// Step 1: copy built files to appropriate directories under the image directory
imageDir := android.PathForModuleOut(ctx, "image"+suffix)
// TODO(jiyong): use the RuleBuilder
var copyCommands []string
var implicitInputs []android.Path
for _, fi := range a.filesInfo {
destPath := imageDir.Join(ctx, fi.path()).String()
// Prepare the destination path
destPathDir := filepath.Dir(destPath)
if fi.class == appSet {
copyCommands = append(copyCommands, "rm -rf "+destPathDir)
}
copyCommands = append(copyCommands, "mkdir -p "+destPathDir)
// Copy the built file to the directory. But if the symlink optimization is turned
// on, place a symlink to the corresponding file in /system partition instead.
if a.linkToSystemLib && fi.transitiveDep && fi.availableToPlatform() {
// TODO(jiyong): pathOnDevice should come from fi.module, not being calculated here
pathOnDevice := filepath.Join("/system", fi.path())
copyCommands = append(copyCommands, "ln -sfn "+pathOnDevice+" "+destPath)
} else {
if fi.class == appSet {
copyCommands = append(copyCommands,
fmt.Sprintf("unzip -qDD -d %s %s", destPathDir, fi.builtFile.String()))
} else {
copyCommands = append(copyCommands, "cp -f "+fi.builtFile.String()+" "+destPath)
}
implicitInputs = append(implicitInputs, fi.builtFile)
}
// Create additional symlinks pointing the file inside the APEX (if any). Note that
// this is independent from the symlink optimization.
for _, symlinkPath := range fi.symlinkPaths() {
symlinkDest := imageDir.Join(ctx, symlinkPath).String()
copyCommands = append(copyCommands, "ln -sfn "+filepath.Base(destPath)+" "+symlinkDest)
}
// Copy the test files (if any)
for _, d := range fi.dataPaths {
// TODO(eakammer): This is now the third repetition of ~this logic for test paths, refactoring should be possible
relPath := d.SrcPath.Rel()
dataPath := d.SrcPath.String()
if !strings.HasSuffix(dataPath, relPath) {
panic(fmt.Errorf("path %q does not end with %q", dataPath, relPath))
}
dataDest := imageDir.Join(ctx, fi.apexRelativePath(relPath), d.RelativeInstallPath).String()
copyCommands = append(copyCommands, "cp -f "+d.SrcPath.String()+" "+dataDest)
implicitInputs = append(implicitInputs, d.SrcPath)
}
}
implicitInputs = append(implicitInputs, a.manifestPbOut)
////////////////////////////////////////////////////////////////////////////////////////////
// Step 1.a: Write the list of files in this APEX to a txt file and compare it against
// the allowed list given via the allowed_files property. Build fails when the two lists
// differ.
//
// TODO(jiyong): consider removing this. Nobody other than com.android.apex.cts.shim.* seems
// to be using this at this moment. Furthermore, this looks very similar to what
// buildInstalledFilesFile does. At least, move this to somewhere else so that this doesn't
// hurt readability.
// TODO(jiyong): use RuleBuilder
if a.overridableProperties.Allowed_files != nil {
// Build content.txt
var emitCommands []string
imageContentFile := android.PathForModuleOut(ctx, "content.txt")
emitCommands = append(emitCommands, "echo ./apex_manifest.pb >> "+imageContentFile.String())
minSdkVersion := a.minSdkVersion(ctx)
if minSdkVersion.EqualTo(android.SdkVersion_Android10) {
emitCommands = append(emitCommands, "echo ./apex_manifest.json >> "+imageContentFile.String())
}
for _, fi := range a.filesInfo {
emitCommands = append(emitCommands, "echo './"+fi.path()+"' >> "+imageContentFile.String())
}
emitCommands = append(emitCommands, "sort -o "+imageContentFile.String()+" "+imageContentFile.String())
ctx.Build(pctx, android.BuildParams{
Rule: emitApexContentRule,
Implicits: implicitInputs,
Output: imageContentFile,
Description: "emit apex image content",
Args: map[string]string{
"emit_commands": strings.Join(emitCommands, " && "),
},
})
implicitInputs = append(implicitInputs, imageContentFile)
// Compare content.txt against allowed_files.
allowedFilesFile := android.PathForModuleSrc(ctx, proptools.String(a.overridableProperties.Allowed_files))
phonyOutput := android.PathForModuleOut(ctx, a.Name()+"-diff-phony-output")
ctx.Build(pctx, android.BuildParams{
Rule: diffApexContentRule,
Implicits: implicitInputs,
Output: phonyOutput,
Description: "diff apex image content",
Args: map[string]string{
"allowed_files_file": allowedFilesFile.String(),
"image_content_file": imageContentFile.String(),
"apex_module_name": a.Name(),
},
})
implicitInputs = append(implicitInputs, phonyOutput)
}
unsignedOutputFile := android.PathForModuleOut(ctx, a.Name()+suffix+".unsigned")
outHostBinDir := android.PathForOutput(ctx, "host", ctx.Config().PrebuiltOS(), "bin").String()
prebuiltSdkToolsBinDir := filepath.Join("prebuilts", "sdk", "tools", runtime.GOOS, "bin")
// Figure out if need to compress apex.
compressionEnabled := ctx.Config().CompressedApex() && proptools.BoolDefault(a.properties.Compressible, false) && !a.testApex && !ctx.Config().UnbundledBuildApps()
if apexType == imageApex {
////////////////////////////////////////////////////////////////////////////////////
// Step 2: create canned_fs_config which encodes filemode,uid,gid of each files
// in this APEX. The file will be used by apexer in later steps.
// TODO(jiyong): make this as a function
// TODO(jiyong): use the RuleBuilder
var readOnlyPaths = []string{"apex_manifest.json", "apex_manifest.pb"}
var executablePaths []string // this also includes dirs
var extractedAppSetPaths android.Paths
var extractedAppSetDirs []string
for _, f := range a.filesInfo {
pathInApex := f.path()
if f.installDir == "bin" || strings.HasPrefix(f.installDir, "bin/") {
executablePaths = append(executablePaths, pathInApex)
for _, d := range f.dataPaths {
readOnlyPaths = append(readOnlyPaths, filepath.Join(f.installDir, d.RelativeInstallPath, d.SrcPath.Rel()))
}
for _, s := range f.symlinks {
executablePaths = append(executablePaths, filepath.Join(f.installDir, s))
}
} else if f.class == appSet {
extractedAppSetPaths = append(extractedAppSetPaths, f.builtFile)
extractedAppSetDirs = append(extractedAppSetDirs, f.installDir)
} else {
readOnlyPaths = append(readOnlyPaths, pathInApex)
}
dir := f.installDir
for !android.InList(dir, executablePaths) && dir != "" {
executablePaths = append(executablePaths, dir)
dir, _ = filepath.Split(dir) // move up to the parent
if len(dir) > 0 {
// remove trailing slash
dir = dir[:len(dir)-1]
}
}
}
sort.Strings(readOnlyPaths)
sort.Strings(executablePaths)
cannedFsConfig := android.PathForModuleOut(ctx, "canned_fs_config")
ctx.Build(pctx, android.BuildParams{
Rule: generateFsConfig,
Output: cannedFsConfig,
Description: "generate fs config",
Inputs: extractedAppSetPaths,
Args: map[string]string{
"ro_paths": strings.Join(readOnlyPaths, " "),
"exec_paths": strings.Join(executablePaths, " "),
"apk_paths": strings.Join(extractedAppSetDirs, " "),
},
})
implicitInputs = append(implicitInputs, cannedFsConfig)
////////////////////////////////////////////////////////////////////////////////////
// Step 3: Prepare option flags for apexer and invoke it to create an unsigned APEX.
// TODO(jiyong): use the RuleBuilder
optFlags := []string{}
fileContexts := a.buildFileContexts(ctx)
implicitInputs = append(implicitInputs, fileContexts)
implicitInputs = append(implicitInputs, a.privateKeyFile, a.publicKeyFile)
optFlags = append(optFlags, "--pubkey "+a.publicKeyFile.String())
manifestPackageName := a.getOverrideManifestPackageName(ctx)
if manifestPackageName != "" {
optFlags = append(optFlags, "--override_apk_package_name "+manifestPackageName)
}
if a.properties.AndroidManifest != nil {
androidManifestFile := android.PathForModuleSrc(ctx, proptools.String(a.properties.AndroidManifest))
implicitInputs = append(implicitInputs, androidManifestFile)
optFlags = append(optFlags, "--android_manifest "+androidManifestFile.String())
}
// Determine target/min sdk version from the context
// TODO(jiyong): make this as a function
moduleMinSdkVersion := a.minSdkVersion(ctx)
minSdkVersion := moduleMinSdkVersion.String()
// bundletool doesn't understand what "current" is. We need to transform it to
// codename
if moduleMinSdkVersion.IsCurrent() || moduleMinSdkVersion.IsNone() {
minSdkVersion = ctx.Config().DefaultAppTargetSdk(ctx).String()
}
// apex module doesn't have a concept of target_sdk_version, hence for the time
// being targetSdkVersion == default targetSdkVersion of the branch.
targetSdkVersion := strconv.Itoa(ctx.Config().DefaultAppTargetSdk(ctx).FinalOrFutureInt())
if java.UseApiFingerprint(ctx) {
targetSdkVersion = ctx.Config().PlatformSdkCodename() + fmt.Sprintf(".$$(cat %s)", java.ApiFingerprintPath(ctx).String())
implicitInputs = append(implicitInputs, java.ApiFingerprintPath(ctx))
}
if java.UseApiFingerprint(ctx) {
minSdkVersion = ctx.Config().PlatformSdkCodename() + fmt.Sprintf(".$$(cat %s)", java.ApiFingerprintPath(ctx).String())
implicitInputs = append(implicitInputs, java.ApiFingerprintPath(ctx))
}
optFlags = append(optFlags, "--target_sdk_version "+targetSdkVersion)
optFlags = append(optFlags, "--min_sdk_version "+minSdkVersion)
if a.overridableProperties.Logging_parent != "" {
optFlags = append(optFlags, "--logging_parent ", a.overridableProperties.Logging_parent)
}
a.mergedNotices = a.buildNoticeFiles(ctx, a.Name()+suffix)
if a.mergedNotices.HtmlGzOutput.Valid() {
// If there's a NOTICE file, embed it as an asset file in the APEX.
implicitInputs = append(implicitInputs, a.mergedNotices.HtmlGzOutput.Path())
optFlags = append(optFlags, "--assets_dir "+filepath.Dir(a.mergedNotices.HtmlGzOutput.String()))
}
if ctx.ModuleDir() != "system/apex/apexd/apexd_testdata" && ctx.ModuleDir() != "system/apex/shim/build" && a.testOnlyShouldSkipHashtreeGeneration() {
ctx.PropertyErrorf("test_only_no_hashtree", "not available")
return
}
if (moduleMinSdkVersion.GreaterThan(android.SdkVersion_Android10) || a.testOnlyShouldSkipHashtreeGeneration()) && !compressionEnabled {
// Apexes which are supposed to be installed in builtin dirs(/system, etc)
// don't need hashtree for activation. Therefore, by removing hashtree from
// apex bundle (filesystem image in it, to be specific), we can save storage.
optFlags = append(optFlags, "--no_hashtree")
}
if a.testOnlyShouldSkipPayloadSign() {
optFlags = append(optFlags, "--unsigned_payload")
}
if a.properties.Apex_name != nil {
// If apex_name is set, apexer can skip checking if key name matches with
// apex name. Note that apex_manifest is also mended.
optFlags = append(optFlags, "--do_not_check_keyname")
}
if moduleMinSdkVersion == android.SdkVersion_Android10 {
implicitInputs = append(implicitInputs, a.manifestJsonOut)
optFlags = append(optFlags, "--manifest_json "+a.manifestJsonOut.String())
}
optFlags = append(optFlags, "--payload_fs_type "+a.payloadFsType.string())
ctx.Build(pctx, android.BuildParams{
Rule: apexRule,
Implicits: implicitInputs,
Output: unsignedOutputFile,
Description: "apex (" + apexType.name() + ")",
Args: map[string]string{
"tool_path": outHostBinDir + ":" + prebuiltSdkToolsBinDir,
"image_dir": imageDir.String(),
"copy_commands": strings.Join(copyCommands, " && "),
"manifest": a.manifestPbOut.String(),
"file_contexts": fileContexts.String(),
"canned_fs_config": cannedFsConfig.String(),
"key": a.privateKeyFile.String(),
"opt_flags": strings.Join(optFlags, " "),
},
})
// TODO(jiyong): make the two rules below as separate functions
apexProtoFile := android.PathForModuleOut(ctx, a.Name()+".pb"+suffix)
bundleModuleFile := android.PathForModuleOut(ctx, a.Name()+suffix+"-base.zip")
a.bundleModuleFile = bundleModuleFile
ctx.Build(pctx, android.BuildParams{
Rule: apexProtoConvertRule,
Input: unsignedOutputFile,
Output: apexProtoFile,
Description: "apex proto convert",
})
implicitInputs = append(implicitInputs, unsignedOutputFile)
// Run coverage analysis
apisUsedbyOutputFile := android.PathForModuleOut(ctx, a.Name()+"_using.txt")
ctx.Build(pctx, android.BuildParams{
Rule: generateAPIsUsedbyApexRule,
Implicits: implicitInputs,
Description: "coverage",
Output: apisUsedbyOutputFile,
Args: map[string]string{
"image_dir": imageDir.String(),
"readelf": "${config.ClangBin}/llvm-readelf",
},
})
a.apisUsedByModuleFile = apisUsedbyOutputFile
var libNames []string
for _, f := range a.filesInfo {
if f.class == nativeSharedLib {
libNames = append(libNames, f.stem())
}
}
apisBackedbyOutputFile := android.PathForModuleOut(ctx, a.Name()+"_backing.txt")
ndkLibraryList := android.PathForSource(ctx, "system/core/rootdir/etc/public.libraries.android.txt")
rule := android.NewRuleBuilder(pctx, ctx)
rule.Command().
Tool(android.PathForSource(ctx, "build/soong/scripts/gen_ndk_backedby_apex.sh")).
Output(apisBackedbyOutputFile).
Input(ndkLibraryList).
Flags(libNames)
rule.Build("ndk_backedby_list", "Generate API libraries backed by Apex")
a.apisBackedByModuleFile = apisBackedbyOutputFile
bundleConfig := a.buildBundleConfig(ctx)
var abis []string
for _, target := range ctx.MultiTargets() {
if len(target.Arch.Abi) > 0 {
abis = append(abis, target.Arch.Abi[0])
}
}
abis = android.FirstUniqueStrings(abis)
ctx.Build(pctx, android.BuildParams{
Rule: apexBundleRule,
Input: apexProtoFile,
Implicit: bundleConfig,
Output: a.bundleModuleFile,
Description: "apex bundle module",
Args: map[string]string{
"abi": strings.Join(abis, "."),
"config": bundleConfig.String(),
},
})
} else { // zipApex
ctx.Build(pctx, android.BuildParams{
Rule: zipApexRule,
Implicits: implicitInputs,
Output: unsignedOutputFile,
Description: "apex (" + apexType.name() + ")",
Args: map[string]string{
"tool_path": outHostBinDir + ":" + prebuiltSdkToolsBinDir,
"image_dir": imageDir.String(),
"copy_commands": strings.Join(copyCommands, " && "),
"manifest": a.manifestPbOut.String(),
},
})
}
////////////////////////////////////////////////////////////////////////////////////
// Step 4: Sign the APEX using signapk
signedOutputFile := android.PathForModuleOut(ctx, a.Name()+suffix)
pem, key := a.getCertificateAndPrivateKey(ctx)
rule := java.Signapk
args := map[string]string{
"certificates": pem.String() + " " + key.String(),
"flags": "-a 4096", //alignment
}
implicits := android.Paths{pem, key}
if ctx.Config().UseRBE() && ctx.Config().IsEnvTrue("RBE_SIGNAPK") {
rule = java.SignapkRE
args["implicits"] = strings.Join(implicits.Strings(), ",")
args["outCommaList"] = signedOutputFile.String()
}
ctx.Build(pctx, android.BuildParams{
Rule: rule,
Description: "signapk",
Output: signedOutputFile,
Input: unsignedOutputFile,
Implicits: implicits,
Args: args,
})
a.outputFile = signedOutputFile
if ctx.ModuleDir() != "system/apex/apexd/apexd_testdata" && a.testOnlyShouldForceCompression() {
ctx.PropertyErrorf("test_only_force_compression", "not available")
return
}
if apexType == imageApex && (compressionEnabled || a.testOnlyShouldForceCompression()) {
a.isCompressed = true
unsignedCompressedOutputFile := android.PathForModuleOut(ctx, a.Name()+".capex.unsigned")
compressRule := android.NewRuleBuilder(pctx, ctx)
compressRule.Command().
Text("rm").
FlagWithOutput("-f ", unsignedCompressedOutputFile)
compressRule.Command().
BuiltTool("apex_compression_tool").
Flag("compress").
FlagWithArg("--apex_compression_tool ", outHostBinDir+":"+prebuiltSdkToolsBinDir).
FlagWithInput("--input ", signedOutputFile).
FlagWithOutput("--output ", unsignedCompressedOutputFile)
compressRule.Build("compressRule", "Generate unsigned compressed APEX file")
signedCompressedOutputFile := android.PathForModuleOut(ctx, a.Name()+".capex")
if ctx.Config().UseRBE() && ctx.Config().IsEnvTrue("RBE_SIGNAPK") {
args["outCommaList"] = signedCompressedOutputFile.String()
}
ctx.Build(pctx, android.BuildParams{
Rule: rule,
Description: "sign compressedApex",
Output: signedCompressedOutputFile,
Input: unsignedCompressedOutputFile,
Implicits: implicits,
Args: args,
})
a.outputFile = signedCompressedOutputFile
}
// Install to $OUT/soong/{target,host}/.../apex
if a.installable() {
ctx.InstallFile(a.installDir, a.Name()+suffix, a.outputFile)
}
// installed-files.txt is dist'ed
a.installedFilesFile = a.buildInstalledFilesFile(ctx, a.outputFile, imageDir)
}
// Context "decorator", overriding the InstallBypassMake method to always reply `true`.
type flattenedApexContext struct {
android.ModuleContext
}
func (c *flattenedApexContext) InstallBypassMake() bool {
return true
}
// buildFlattenedApex creates rules for a flattened APEX. Flattened APEX actually doesn't have a
// single output file. It is a phony target for all the files under /system/apex/<name> directory.
// This function creates the installation rules for the files.
func (a *apexBundle) buildFlattenedApex(ctx android.ModuleContext) {
bundleName := a.Name()
if a.installable() {
for _, fi := range a.filesInfo {
dir := filepath.Join("apex", bundleName, fi.installDir)
target := ctx.InstallFile(android.PathForModuleInstall(ctx, dir), fi.stem(), fi.builtFile)
for _, sym := range fi.symlinks {
ctx.InstallSymlink(android.PathForModuleInstall(ctx, dir), sym, target)
}
}
}
a.fileContexts = a.buildFileContexts(ctx)
// Temporarily wrap the original `ctx` into a `flattenedApexContext` to have it reply true
// to `InstallBypassMake()` (thus making the call `android.PathForModuleInstall` below use
// `android.pathForInstallInMakeDir` instead of `android.PathForOutput`) to return the
// correct path to the flattened APEX (as its contents is installed by Make, not Soong).
// TODO(jiyong): Why do we need to set outputFile for flattened APEX? We don't seem to use
// it and it actually points to a path that can never be built. Remove this.
factx := flattenedApexContext{ctx}
a.outputFile = android.PathForModuleInstall(&factx, "apex", bundleName)
}
// getCertificateAndPrivateKey retrieves the cert and the private key that will be used to sign
// the zip container of this APEX. See the description of the 'certificate' property for how
// the cert and the private key are found.
func (a *apexBundle) getCertificateAndPrivateKey(ctx android.PathContext) (pem, key android.Path) {
if a.containerCertificateFile != nil {
return a.containerCertificateFile, a.containerPrivateKeyFile
}
cert := String(a.overridableProperties.Certificate)
if cert == "" {
return ctx.Config().DefaultAppCertificate(ctx)
}
defaultDir := ctx.Config().DefaultAppCertificateDir(ctx)
pem = defaultDir.Join(ctx, cert+".x509.pem")
key = defaultDir.Join(ctx, cert+".pk8")
return pem, key
}
func (a *apexBundle) getOverrideManifestPackageName(ctx android.ModuleContext) string {
// For VNDK APEXes, check "com.android.vndk" in PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES
// to see if it should be overridden because their <apex name> is dynamically generated
// according to its VNDK version.
if a.vndkApex {
overrideName, overridden := ctx.DeviceConfig().OverrideManifestPackageNameFor(vndkApexName)
if overridden {
return strings.Replace(*a.properties.Apex_name, vndkApexName, overrideName, 1)
}
return ""
}
if a.overridableProperties.Package_name != "" {
return a.overridableProperties.Package_name
}
manifestPackageName, overridden := ctx.DeviceConfig().OverrideManifestPackageNameFor(ctx.ModuleName())
if overridden {
return manifestPackageName
}
return ""
}
func (a *apexBundle) buildApexDependencyInfo(ctx android.ModuleContext) {
if !a.primaryApexType {
return
}
if a.properties.IsCoverageVariant {
// Otherwise, we will have duplicated rules for coverage and
// non-coverage variants of the same APEX
return
}
if ctx.Host() {
// No need to generate dependency info for host variant
return
}
depInfos := android.DepNameToDepInfoMap{}
a.WalkPayloadDeps(ctx, func(ctx android.ModuleContext, from blueprint.Module, to android.ApexModule, externalDep bool) bool {
if from.Name() == to.Name() {
// This can happen for cc.reuseObjTag. We are not interested in tracking this.
// As soon as the dependency graph crosses the APEX boundary, don't go further.
return !externalDep
}
// Skip dependencies that are only available to APEXes; they are developed with updatability
// in mind and don't need manual approval.
if to.(android.ApexModule).NotAvailableForPlatform() {
return !externalDep
}
depTag := ctx.OtherModuleDependencyTag(to)
// Check to see if dependency been marked to skip the dependency check
if skipDepCheck, ok := depTag.(android.SkipApexAllowedDependenciesCheck); ok && skipDepCheck.SkipApexAllowedDependenciesCheck() {
return !externalDep
}
if info, exists := depInfos[to.Name()]; exists {
if !android.InList(from.Name(), info.From) {
info.From = append(info.From, from.Name())
}
info.IsExternal = info.IsExternal && externalDep
depInfos[to.Name()] = info
} else {
toMinSdkVersion := "(no version)"
if m, ok := to.(interface {
MinSdkVersion(ctx android.EarlyModuleContext) android.SdkSpec
}); ok {
if v := m.MinSdkVersion(ctx); !v.ApiLevel.IsNone() {
toMinSdkVersion = v.ApiLevel.String()
}
} else if m, ok := to.(interface{ MinSdkVersion() string }); ok {
// TODO(b/175678607) eliminate the use of MinSdkVersion returning
// string
if v := m.MinSdkVersion(); v != "" {
toMinSdkVersion = v
}
}
depInfos[to.Name()] = android.ApexModuleDepInfo{
To: to.Name(),
From: []string{from.Name()},
IsExternal: externalDep,
MinSdkVersion: toMinSdkVersion,
}
}
// As soon as the dependency graph crosses the APEX boundary, don't go further.
return !externalDep
})
a.ApexBundleDepsInfo.BuildDepsInfoLists(ctx, proptools.String(a.properties.Min_sdk_version), depInfos)
ctx.Build(pctx, android.BuildParams{
Rule: android.Phony,
Output: android.PathForPhony(ctx, a.Name()+"-deps-info"),
Inputs: []android.Path{
a.ApexBundleDepsInfo.FullListPath(),
a.ApexBundleDepsInfo.FlatListPath(),
},
})
}
func (a *apexBundle) buildLintReports(ctx android.ModuleContext) {
depSetsBuilder := java.NewLintDepSetBuilder()
for _, fi := range a.filesInfo {
depSetsBuilder.Transitive(fi.lintDepSets)
}
a.lintReports = java.BuildModuleLintReportZips(ctx, depSetsBuilder.Build())
}