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// Copyright 2019 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 java
import (
"android/soong/android"
"android/soong/java/config"
"fmt"
"path/filepath"
"sort"
"strconv"
"strings"
"github.com/google/blueprint/pathtools"
)
func init() {
android.RegisterPreSingletonType("sdk_versions", sdkPreSingletonFactory)
android.RegisterSingletonType("sdk", sdkSingletonFactory)
android.RegisterMakeVarsProvider(pctx, sdkMakeVars)
}
var sdkVersionsKey = android.NewOnceKey("sdkVersionsKey")
var sdkFrameworkAidlPathKey = android.NewOnceKey("sdkFrameworkAidlPathKey")
var apiFingerprintPathKey = android.NewOnceKey("apiFingerprintPathKey")
type sdkContext interface {
// sdkVersion returns the sdk_version property of the current module, or an empty string if it is not set.
sdkVersion() string
// systemModules returns the system_modules property of the current module, or an empty string if it is not set.
systemModules() string
// minSdkVersion returns the min_sdk_version property of the current module, or sdkVersion() if it is not set.
minSdkVersion() string
// targetSdkVersion returns the target_sdk_version property of the current module, or sdkVersion() if it is not set.
targetSdkVersion() string
}
func sdkVersionOrDefault(ctx android.BaseModuleContext, v string) string {
switch v {
case "", "none", "current", "test_current", "system_current", "core_current", "core_platform":
return ctx.Config().DefaultAppTargetSdk()
default:
return v
}
}
// Returns a sdk version as a number. For modules targeting an unreleased SDK (meaning it does not yet have a number)
// it returns android.FutureApiLevel (10000).
func sdkVersionToNumber(ctx android.BaseModuleContext, v string) (int, error) {
switch v {
case "", "none", "current", "test_current", "system_current", "core_current", "core_platform":
return ctx.Config().DefaultAppTargetSdkInt(), nil
default:
n := android.GetNumericSdkVersion(v)
if i, err := strconv.Atoi(n); err != nil {
return -1, fmt.Errorf("invalid sdk version %q", n)
} else {
return i, nil
}
}
}
func sdkVersionToNumberAsString(ctx android.BaseModuleContext, v string) (string, error) {
n, err := sdkVersionToNumber(ctx, v)
if err != nil {
return "", err
}
return strconv.Itoa(n), nil
}
func decodeSdkDep(ctx android.BaseModuleContext, sdkContext sdkContext) sdkDep {
v := sdkContext.sdkVersion()
// For PDK builds, use the latest SDK version instead of "current"
if ctx.Config().IsPdkBuild() && (v == "" || v == "current") {
sdkVersions := ctx.Config().Get(sdkVersionsKey).([]int)
latestSdkVersion := 0
if len(sdkVersions) > 0 {
latestSdkVersion = sdkVersions[len(sdkVersions)-1]
}
v = strconv.Itoa(latestSdkVersion)
}
numericSdkVersion, err := sdkVersionToNumber(ctx, v)
if err != nil {
ctx.PropertyErrorf("sdk_version", "%s", err)
return sdkDep{}
}
toPrebuilt := func(sdk string) sdkDep {
var api, v string
if strings.Contains(sdk, "_") {
t := strings.Split(sdk, "_")
api = t[0]
v = t[1]
} else {
api = "public"
v = sdk
}
dir := filepath.Join("prebuilts", "sdk", v, api)
jar := filepath.Join(dir, "android.jar")
// There's no aidl for other SDKs yet.
// TODO(77525052): Add aidl files for other SDKs too.
public_dir := filepath.Join("prebuilts", "sdk", v, "public")
aidl := filepath.Join(public_dir, "framework.aidl")
jarPath := android.ExistentPathForSource(ctx, jar)
aidlPath := android.ExistentPathForSource(ctx, aidl)
lambdaStubsPath := android.PathForSource(ctx, config.SdkLambdaStubsPath)
if (!jarPath.Valid() || !aidlPath.Valid()) && ctx.Config().AllowMissingDependencies() {
return sdkDep{
invalidVersion: true,
bootclasspath: []string{fmt.Sprintf("sdk_%s_%s_android", api, v)},
}
}
if !jarPath.Valid() {
ctx.PropertyErrorf("sdk_version", "invalid sdk version %q, %q does not exist", v, jar)
return sdkDep{}
}
if !aidlPath.Valid() {
ctx.PropertyErrorf("sdk_version", "invalid sdk version %q, %q does not exist", v, aidl)
return sdkDep{}
}
return sdkDep{
useFiles: true,
jars: android.Paths{jarPath.Path(), lambdaStubsPath},
aidl: android.OptionalPathForPath(aidlPath.Path()),
}
}
toModule := func(m, r string, aidl android.Path) sdkDep {
return sdkDep{
useModule: true,
bootclasspath: []string{m, config.DefaultLambdaStubsLibrary},
systemModules: "core-current-stubs-system-modules",
java9Classpath: []string{m},
frameworkResModule: r,
aidl: android.OptionalPathForPath(aidl),
}
}
// Ensures that the specificed system SDK version is one of BOARD_SYSTEMSDK_VERSIONS (for vendor apks)
// or PRODUCT_SYSTEMSDK_VERSIONS (for other apks or when BOARD_SYSTEMSDK_VERSIONS is not set)
if strings.HasPrefix(v, "system_") && numericSdkVersion != android.FutureApiLevel {
allowed_versions := ctx.DeviceConfig().PlatformSystemSdkVersions()
if ctx.DeviceSpecific() || ctx.SocSpecific() {
if len(ctx.DeviceConfig().SystemSdkVersions()) > 0 {
allowed_versions = ctx.DeviceConfig().SystemSdkVersions()
}
}
if len(allowed_versions) > 0 && !android.InList(strconv.Itoa(numericSdkVersion), allowed_versions) {
ctx.PropertyErrorf("sdk_version", "incompatible sdk version %q. System SDK version should be one of %q",
v, allowed_versions)
}
}
if ctx.Config().UnbundledBuildUsePrebuiltSdks() &&
v != "" && v != "none" && v != "core_platform" {
return toPrebuilt(v)
}
switch v {
case "":
return sdkDep{
useDefaultLibs: true,
frameworkResModule: "framework-res",
}
case "none":
systemModules := sdkContext.systemModules()
if systemModules == "" {
ctx.PropertyErrorf("sdk_version",
`system_modules is required to be set to a non-empty value when sdk_version is "none", did you mean sdk_version: "core_platform"?`)
} else if systemModules == "none" {
return sdkDep{
noStandardLibs: true,
}
}
return sdkDep{
useModule: true,
noStandardLibs: true,
systemModules: systemModules,
bootclasspath: []string{systemModules},
}
case "core_platform":
return sdkDep{
useDefaultLibs: true,
frameworkResModule: "framework-res",
noFrameworksLibs: true,
}
case "current":
return toModule("android_stubs_current", "framework-res", sdkFrameworkAidlPath(ctx))
case "system_current":
return toModule("android_system_stubs_current", "framework-res", sdkFrameworkAidlPath(ctx))
case "test_current":
return toModule("android_test_stubs_current", "framework-res", sdkFrameworkAidlPath(ctx))
case "core_current":
return toModule("core.current.stubs", "", nil)
default:
return toPrebuilt(v)
}
}
func sdkPreSingletonFactory() android.Singleton {
return sdkPreSingleton{}
}
type sdkPreSingleton struct{}
func (sdkPreSingleton) GenerateBuildActions(ctx android.SingletonContext) {
sdkJars, err := ctx.GlobWithDeps("prebuilts/sdk/*/public/android.jar", nil)
if err != nil {
ctx.Errorf("failed to glob prebuilts/sdk/*/public/android.jar: %s", err.Error())
}
var sdkVersions []int
for _, sdkJar := range sdkJars {
dir := filepath.Base(filepath.Dir(filepath.Dir(sdkJar)))
v, err := strconv.Atoi(dir)
if scerr, ok := err.(*strconv.NumError); ok && scerr.Err == strconv.ErrSyntax {
continue
} else if err != nil {
ctx.Errorf("invalid sdk jar %q, %s, %v", sdkJar, err.Error())
}
sdkVersions = append(sdkVersions, v)
}
sort.Ints(sdkVersions)
ctx.Config().Once(sdkVersionsKey, func() interface{} { return sdkVersions })
}
func sdkSingletonFactory() android.Singleton {
return sdkSingleton{}
}
type sdkSingleton struct{}
func (sdkSingleton) GenerateBuildActions(ctx android.SingletonContext) {
if ctx.Config().UnbundledBuildUsePrebuiltSdks() || ctx.Config().IsPdkBuild() {
return
}
createSdkFrameworkAidl(ctx)
createAPIFingerprint(ctx)
}
// Create framework.aidl by extracting anything that implements android.os.Parcelable from the SDK stubs modules.
func createSdkFrameworkAidl(ctx android.SingletonContext) {
stubsModules := []string{
"android_stubs_current",
"android_test_stubs_current",
"android_system_stubs_current",
}
stubsJars := make([]android.Paths, len(stubsModules))
ctx.VisitAllModules(func(module android.Module) {
// Collect dex jar paths for the modules listed above.
if j, ok := module.(Dependency); ok {
name := ctx.ModuleName(module)
if i := android.IndexList(name, stubsModules); i != -1 {
stubsJars[i] = j.HeaderJars()
}
}
})
var missingDeps []string
for i := range stubsJars {
if stubsJars[i] == nil {
if ctx.Config().AllowMissingDependencies() {
missingDeps = append(missingDeps, stubsModules[i])
} else {
ctx.Errorf("failed to find dex jar path for module %q",
stubsModules[i])
}
}
}
rule := android.NewRuleBuilder()
rule.MissingDeps(missingDeps)
var aidls android.Paths
for _, jars := range stubsJars {
for _, jar := range jars {
aidl := android.PathForOutput(ctx, "aidl", pathtools.ReplaceExtension(jar.Base(), "aidl"))
rule.Command().
Text("rm -f").Output(aidl)
rule.Command().
BuiltTool(ctx, "sdkparcelables").
Input(jar).
Output(aidl)
aidls = append(aidls, aidl)
}
}
combinedAidl := sdkFrameworkAidlPath(ctx)
tempPath := combinedAidl.ReplaceExtension(ctx, "aidl.tmp")
rule.Command().
Text("rm -f").Output(tempPath)
rule.Command().
Text("cat").
Inputs(aidls).
Text("| sort -u >").
Output(tempPath)
commitChangeForRestat(rule, tempPath, combinedAidl)
rule.Build(pctx, ctx, "framework_aidl", "generate framework.aidl")
}
func sdkFrameworkAidlPath(ctx android.PathContext) android.OutputPath {
return ctx.Config().Once(sdkFrameworkAidlPathKey, func() interface{} {
return android.PathForOutput(ctx, "framework.aidl")
}).(android.OutputPath)
}
// Create api_fingerprint.txt
func createAPIFingerprint(ctx android.SingletonContext) {
out := ApiFingerprintPath(ctx)
rule := android.NewRuleBuilder()
rule.Command().
Text("rm -f").Output(out)
cmd := rule.Command()
if ctx.Config().PlatformSdkCodename() == "REL" {
cmd.Text("echo REL >").Output(out)
} else if ctx.Config().IsPdkBuild() {
// TODO: get this from the PDK artifacts?
cmd.Text("echo PDK >").Output(out)
} else if !ctx.Config().UnbundledBuildUsePrebuiltSdks() {
in, err := ctx.GlobWithDeps("frameworks/base/api/*current.txt", nil)
if err != nil {
ctx.Errorf("error globbing API files: %s", err)
}
cmd.Text("cat").
Inputs(android.PathsForSource(ctx, in)).
Text("| md5sum | cut -d' ' -f1 >").
Output(out)
} else {
// Unbundled build
// TODO: use a prebuilt api_fingerprint.txt from prebuilts/sdk/current.txt once we have one
cmd.Text("echo").
Flag(ctx.Config().PlatformPreviewSdkVersion()).
Text(">").
Output(out)
}
rule.Build(pctx, ctx, "api_fingerprint", "generate api_fingerprint.txt")
}
func ApiFingerprintPath(ctx android.PathContext) android.OutputPath {
return ctx.Config().Once(apiFingerprintPathKey, func() interface{} {
return android.PathForOutput(ctx, "api_fingerprint.txt")
}).(android.OutputPath)
}
func sdkMakeVars(ctx android.MakeVarsContext) {
if ctx.Config().UnbundledBuildUsePrebuiltSdks() || ctx.Config().IsPdkBuild() {
return
}
ctx.Strict("FRAMEWORK_AIDL", sdkFrameworkAidlPath(ctx).String())
ctx.Strict("API_FINGERPRINT", ApiFingerprintPath(ctx).String())
}