133 lines
4.7 KiB
Go
133 lines
4.7 KiB
Go
// Copyright (C) 2019 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package apex
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import (
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"path/filepath"
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"strings"
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"sync"
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"android/soong/android"
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"android/soong/cc"
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"github.com/google/blueprint/proptools"
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)
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const (
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vndkApexNamePrefix = "com.android.vndk.v"
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)
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// apex_vndk creates a special variant of apex modules which contains only VNDK libraries.
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// If `vndk_version` is specified, the VNDK libraries of the specified VNDK version are gathered automatically.
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// If not specified, then the "current" versions are gathered.
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func vndkApexBundleFactory() android.Module {
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bundle := newApexBundle()
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bundle.vndkApex = true
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bundle.AddProperties(&bundle.vndkProperties)
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android.AddLoadHook(bundle, func(ctx android.LoadHookContext) {
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ctx.AppendProperties(&struct {
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Compile_multilib *string
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}{
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proptools.StringPtr("both"),
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})
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})
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return bundle
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}
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func (a *apexBundle) vndkVersion(config android.DeviceConfig) string {
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vndkVersion := proptools.StringDefault(a.vndkProperties.Vndk_version, "current")
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if vndkVersion == "current" {
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vndkVersion = config.PlatformVndkVersion()
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}
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return vndkVersion
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}
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type apexVndkProperties struct {
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// Indicates VNDK version of which this VNDK APEX bundles VNDK libs. Default is Platform VNDK Version.
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Vndk_version *string
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}
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var (
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vndkApexListKey = android.NewOnceKey("vndkApexList")
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vndkApexListMutex sync.Mutex
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)
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func vndkApexList(config android.Config) map[string]string {
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return config.Once(vndkApexListKey, func() interface{} {
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return map[string]string{}
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}).(map[string]string)
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}
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func apexVndkMutator(mctx android.TopDownMutatorContext) {
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if ab, ok := mctx.Module().(*apexBundle); ok && ab.vndkApex {
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if ab.IsNativeBridgeSupported() {
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mctx.PropertyErrorf("native_bridge_supported", "%q doesn't support native bridge binary.", mctx.ModuleType())
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}
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vndkVersion := ab.vndkVersion(mctx.DeviceConfig())
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// Ensure VNDK APEX mount point is formatted as com.android.vndk.v###
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ab.properties.Apex_name = proptools.StringPtr(vndkApexNamePrefix + vndkVersion)
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// vndk_version should be unique
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vndkApexListMutex.Lock()
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defer vndkApexListMutex.Unlock()
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vndkApexList := vndkApexList(mctx.Config())
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if other, ok := vndkApexList[vndkVersion]; ok {
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mctx.PropertyErrorf("vndk_version", "%v is already defined in %q", vndkVersion, other)
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}
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vndkApexList[vndkVersion] = mctx.ModuleName()
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}
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}
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func apexVndkDepsMutator(mctx android.BottomUpMutatorContext) {
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if m, ok := mctx.Module().(*cc.Module); ok && cc.IsForVndkApex(mctx, m) {
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vndkVersion := m.VndkVersion()
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vndkApexList := vndkApexList(mctx.Config())
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if vndkApex, ok := vndkApexList[vndkVersion]; ok {
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mctx.AddReverseDependency(mctx.Module(), sharedLibTag, vndkApex)
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}
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} else if a, ok := mctx.Module().(*apexBundle); ok && a.vndkApex {
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vndkVersion := proptools.StringDefault(a.vndkProperties.Vndk_version, "current")
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mctx.AddDependency(mctx.Module(), prebuiltTag, cc.VndkLibrariesTxtModules(vndkVersion)...)
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}
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}
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func makeCompatSymlinks(apexName string, ctx android.ModuleContext) (symlinks []string) {
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// small helper to add symlink commands
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addSymlink := func(target, dir, linkName string) {
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outDir := filepath.Join("$(PRODUCT_OUT)", dir)
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link := filepath.Join(outDir, linkName)
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symlinks = append(symlinks, "mkdir -p "+outDir+" && rm -rf "+link+" && ln -sf "+target+" "+link)
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}
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// TODO(b/142911355): [VNDK APEX] Fix hard-coded references to /system/lib/vndk
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// When all hard-coded references are fixed, remove symbolic links
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// Note that we should keep following symlinks for older VNDKs (<=29)
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// Since prebuilt vndk libs still depend on system/lib/vndk path
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if strings.HasPrefix(apexName, vndkApexNamePrefix) {
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// the name of vndk apex is formatted "com.android.vndk.v" + version
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vndkVersion := strings.TrimPrefix(apexName, vndkApexNamePrefix)
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if ctx.Config().Android64() {
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addSymlink("/apex/"+apexName+"/lib64", "/system/lib64", "vndk-sp-"+vndkVersion)
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addSymlink("/apex/"+apexName+"/lib64", "/system/lib64", "vndk-"+vndkVersion)
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}
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if !ctx.Config().Android64() || ctx.DeviceConfig().DeviceSecondaryArch() != "" {
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addSymlink("/apex/"+apexName+"/lib", "/system/lib", "vndk-sp-"+vndkVersion)
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addSymlink("/apex/"+apexName+"/lib", "/system/lib", "vndk-"+vndkVersion)
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}
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}
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return
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}
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