platform_build_soong/cc/vndk.go

539 lines
16 KiB
Go

// Copyright 2017 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 (
"errors"
"fmt"
"path/filepath"
"sort"
"strings"
"sync"
"android/soong/android"
"android/soong/cc/config"
)
type VndkProperties struct {
Vndk struct {
// declared as a VNDK or VNDK-SP module. The vendor variant
// will be installed in /system instead of /vendor partition.
//
// `vendor_vailable` must be explicitly set to either true or
// false together with `vndk: {enabled: true}`.
Enabled *bool
// declared as a VNDK-SP module, which is a subset of VNDK.
//
// `vndk: { enabled: true }` must set together.
//
// All these modules are allowed to link to VNDK-SP or LL-NDK
// modules only. Other dependency will cause link-type errors.
//
// If `support_system_process` is not set or set to false,
// the module is VNDK-core and can link to other VNDK-core,
// VNDK-SP or LL-NDK modules only.
Support_system_process *bool
// Extending another module
Extends *string
}
}
type vndkdep struct {
Properties VndkProperties
}
func (vndk *vndkdep) props() []interface{} {
return []interface{}{&vndk.Properties}
}
func (vndk *vndkdep) begin(ctx BaseModuleContext) {}
func (vndk *vndkdep) deps(ctx BaseModuleContext, deps Deps) Deps {
return deps
}
func (vndk *vndkdep) isVndk() bool {
return Bool(vndk.Properties.Vndk.Enabled)
}
func (vndk *vndkdep) isVndkSp() bool {
return Bool(vndk.Properties.Vndk.Support_system_process)
}
func (vndk *vndkdep) isVndkExt() bool {
return vndk.Properties.Vndk.Extends != nil
}
func (vndk *vndkdep) getVndkExtendsModuleName() string {
return String(vndk.Properties.Vndk.Extends)
}
func (vndk *vndkdep) typeName() string {
if !vndk.isVndk() {
return "native:vendor"
}
if !vndk.isVndkExt() {
if !vndk.isVndkSp() {
return "native:vendor:vndk"
}
return "native:vendor:vndksp"
}
if !vndk.isVndkSp() {
return "native:vendor:vndkext"
}
return "native:vendor:vndkspext"
}
func (vndk *vndkdep) vndkCheckLinkType(ctx android.ModuleContext, to *Module, tag dependencyTag) {
if to.linker == nil {
return
}
if !vndk.isVndk() {
// Non-VNDK modules (those installed to /vendor) can't depend on modules marked with
// vendor_available: false.
violation := false
if lib, ok := to.linker.(*llndkStubDecorator); ok && !Bool(lib.Properties.Vendor_available) {
violation = true
} else {
if _, ok := to.linker.(libraryInterface); ok && to.VendorProperties.Vendor_available != nil && !Bool(to.VendorProperties.Vendor_available) {
// Vendor_available == nil && !Bool(Vendor_available) should be okay since
// it means a vendor-only library which is a valid dependency for non-VNDK
// modules.
violation = true
}
}
if violation {
ctx.ModuleErrorf("Vendor module that is not VNDK should not link to %q which is marked as `vendor_available: false`", to.Name())
}
}
if lib, ok := to.linker.(*libraryDecorator); !ok || !lib.shared() {
// Check only shared libraries.
// Other (static and LL-NDK) libraries are allowed to link.
return
}
if !to.Properties.UseVndk {
ctx.ModuleErrorf("(%s) should not link to %q which is not a vendor-available library",
vndk.typeName(), to.Name())
return
}
if tag == vndkExtDepTag {
// Ensure `extends: "name"` property refers a vndk module that has vendor_available
// and has identical vndk properties.
if to.vndkdep == nil || !to.vndkdep.isVndk() {
ctx.ModuleErrorf("`extends` refers a non-vndk module %q", to.Name())
return
}
if vndk.isVndkSp() != to.vndkdep.isVndkSp() {
ctx.ModuleErrorf(
"`extends` refers a module %q with mismatched support_system_process",
to.Name())
return
}
if !Bool(to.VendorProperties.Vendor_available) {
ctx.ModuleErrorf(
"`extends` refers module %q which does not have `vendor_available: true`",
to.Name())
return
}
}
if to.vndkdep == nil {
return
}
// Check the dependencies of VNDK shared libraries.
if err := vndkIsVndkDepAllowed(vndk, to.vndkdep); err != nil {
ctx.ModuleErrorf("(%s) should not link to %q (%s): %v",
vndk.typeName(), to.Name(), to.vndkdep.typeName(), err)
return
}
}
func vndkIsVndkDepAllowed(from *vndkdep, to *vndkdep) error {
// Check the dependencies of VNDK, VNDK-Ext, VNDK-SP, VNDK-SP-Ext and vendor modules.
if from.isVndkExt() {
if from.isVndkSp() {
if to.isVndk() && !to.isVndkSp() {
return errors.New("VNDK-SP extensions must not depend on VNDK or VNDK extensions")
}
return nil
}
// VNDK-Ext may depend on VNDK, VNDK-Ext, VNDK-SP, VNDK-SP-Ext, or vendor libs.
return nil
}
if from.isVndk() {
if to.isVndkExt() {
return errors.New("VNDK-core and VNDK-SP must not depend on VNDK extensions")
}
if from.isVndkSp() {
if !to.isVndkSp() {
return errors.New("VNDK-SP must only depend on VNDK-SP")
}
return nil
}
if !to.isVndk() {
return errors.New("VNDK-core must only depend on VNDK-core or VNDK-SP")
}
return nil
}
// Vendor modules may depend on VNDK, VNDK-Ext, VNDK-SP, VNDK-SP-Ext, or vendor libs.
return nil
}
var (
vndkCoreLibrariesKey = android.NewOnceKey("vndkCoreLibrarires")
vndkSpLibrariesKey = android.NewOnceKey("vndkSpLibrarires")
llndkLibrariesKey = android.NewOnceKey("llndkLibrarires")
vndkPrivateLibrariesKey = android.NewOnceKey("vndkPrivateLibrarires")
vndkUsingCoreVariantLibrariesKey = android.NewOnceKey("vndkUsingCoreVariantLibrarires")
modulePathsKey = android.NewOnceKey("modulePaths")
vndkSnapshotOutputsKey = android.NewOnceKey("vndkSnapshotOutputs")
vndkLibrariesLock sync.Mutex
)
type vndkSnapshotOutputPaths struct {
configs android.Paths
notices android.Paths
vndkCoreLibs android.Paths
vndkCoreLibs2nd android.Paths
vndkSpLibs android.Paths
vndkSpLibs2nd android.Paths
}
func vndkCoreLibraries(config android.Config) *[]string {
return config.Once(vndkCoreLibrariesKey, func() interface{} {
return &[]string{}
}).(*[]string)
}
func vndkSpLibraries(config android.Config) *[]string {
return config.Once(vndkSpLibrariesKey, func() interface{} {
return &[]string{}
}).(*[]string)
}
func llndkLibraries(config android.Config) *[]string {
return config.Once(llndkLibrariesKey, func() interface{} {
return &[]string{}
}).(*[]string)
}
func vndkPrivateLibraries(config android.Config) *[]string {
return config.Once(vndkPrivateLibrariesKey, func() interface{} {
return &[]string{}
}).(*[]string)
}
func vndkUsingCoreVariantLibraries(config android.Config) *[]string {
return config.Once(vndkUsingCoreVariantLibrariesKey, func() interface{} {
return &[]string{}
}).(*[]string)
}
func modulePaths(config android.Config) map[string]string {
return config.Once(modulePathsKey, func() interface{} {
return make(map[string]string)
}).(map[string]string)
}
func vndkSnapshotOutputs(config android.Config) *vndkSnapshotOutputPaths {
return config.Once(vndkSnapshotOutputsKey, func() interface{} {
return &vndkSnapshotOutputPaths{}
}).(*vndkSnapshotOutputPaths)
}
func processLlndkLibrary(mctx android.BottomUpMutatorContext, m *Module) {
lib := m.linker.(*llndkStubDecorator)
name := strings.TrimSuffix(m.Name(), llndkLibrarySuffix)
vndkLibrariesLock.Lock()
defer vndkLibrariesLock.Unlock()
llndkLibraries := llndkLibraries(mctx.Config())
if !inList(name, *llndkLibraries) {
*llndkLibraries = append(*llndkLibraries, name)
sort.Strings(*llndkLibraries)
}
if !Bool(lib.Properties.Vendor_available) {
vndkPrivateLibraries := vndkPrivateLibraries(mctx.Config())
if !inList(name, *vndkPrivateLibraries) {
*vndkPrivateLibraries = append(*vndkPrivateLibraries, name)
sort.Strings(*vndkPrivateLibraries)
}
}
}
func processVndkLibrary(mctx android.BottomUpMutatorContext, m *Module) {
name := strings.TrimPrefix(m.Name(), "prebuilt_")
vndkLibrariesLock.Lock()
defer vndkLibrariesLock.Unlock()
modulePaths := modulePaths(mctx.Config())
if mctx.DeviceConfig().VndkUseCoreVariant() && !inList(name, config.VndkMustUseVendorVariantList) {
vndkUsingCoreVariantLibraries := vndkUsingCoreVariantLibraries(mctx.Config())
if !inList(name, *vndkUsingCoreVariantLibraries) {
*vndkUsingCoreVariantLibraries = append(*vndkUsingCoreVariantLibraries, name)
sort.Strings(*vndkUsingCoreVariantLibraries)
}
}
if m.vndkdep.isVndkSp() {
vndkSpLibraries := vndkSpLibraries(mctx.Config())
if !inList(name, *vndkSpLibraries) {
*vndkSpLibraries = append(*vndkSpLibraries, name)
sort.Strings(*vndkSpLibraries)
modulePaths[name] = mctx.ModuleDir()
}
} else {
vndkCoreLibraries := vndkCoreLibraries(mctx.Config())
if !inList(name, *vndkCoreLibraries) {
*vndkCoreLibraries = append(*vndkCoreLibraries, name)
sort.Strings(*vndkCoreLibraries)
modulePaths[name] = mctx.ModuleDir()
}
}
if !Bool(m.VendorProperties.Vendor_available) {
vndkPrivateLibraries := vndkPrivateLibraries(mctx.Config())
if !inList(name, *vndkPrivateLibraries) {
*vndkPrivateLibraries = append(*vndkPrivateLibraries, name)
sort.Strings(*vndkPrivateLibraries)
}
}
}
// gather list of vndk-core, vndk-sp, and ll-ndk libs
func VndkMutator(mctx android.BottomUpMutatorContext) {
m, ok := mctx.Module().(*Module)
if !ok {
return
}
if !m.Enabled() {
return
}
if _, ok := m.linker.(*llndkStubDecorator); ok {
processLlndkLibrary(mctx, m)
return
}
lib, is_lib := m.linker.(*libraryDecorator)
prebuilt_lib, is_prebuilt_lib := m.linker.(*prebuiltLibraryLinker)
if (is_lib && lib.shared()) || (is_prebuilt_lib && prebuilt_lib.shared()) {
if m.vndkdep.isVndk() && !m.vndkdep.isVndkExt() {
processVndkLibrary(mctx, m)
return
}
}
}
func init() {
android.RegisterSingletonType("vndk-snapshot", VndkSnapshotSingleton)
android.RegisterMakeVarsProvider(pctx, func(ctx android.MakeVarsContext) {
outputs := vndkSnapshotOutputs(ctx.Config())
ctx.Strict("SOONG_VNDK_SNAPSHOT_CONFIGS", strings.Join(outputs.configs.Strings(), " "))
ctx.Strict("SOONG_VNDK_SNAPSHOT_NOTICES", strings.Join(outputs.notices.Strings(), " "))
ctx.Strict("SOONG_VNDK_SNAPSHOT_CORE_LIBS", strings.Join(outputs.vndkCoreLibs.Strings(), " "))
ctx.Strict("SOONG_VNDK_SNAPSHOT_SP_LIBS", strings.Join(outputs.vndkSpLibs.Strings(), " "))
ctx.Strict("SOONG_VNDK_SNAPSHOT_CORE_LIBS_2ND", strings.Join(outputs.vndkCoreLibs2nd.Strings(), " "))
ctx.Strict("SOONG_VNDK_SNAPSHOT_SP_LIBS_2ND", strings.Join(outputs.vndkSpLibs2nd.Strings(), " "))
})
}
func VndkSnapshotSingleton() android.Singleton {
return &vndkSnapshotSingleton{}
}
type vndkSnapshotSingleton struct{}
func installVndkSnapshotLib(ctx android.SingletonContext, name string, module *Module, dir string) android.Path {
if !module.outputFile.Valid() {
panic(fmt.Errorf("module %s has no outputFile\n", name))
}
out := android.PathForOutput(ctx, dir, name+".so")
ctx.Build(pctx, android.BuildParams{
Rule: android.Cp,
Input: module.outputFile.Path(),
Output: out,
Description: "vndk snapshot " + dir + "/" + name + ".so",
Args: map[string]string{
"cpFlags": "-f -L",
},
})
return out
}
func (c *vndkSnapshotSingleton) GenerateBuildActions(ctx android.SingletonContext) {
// BOARD_VNDK_VERSION must be set to 'current' in order to generate a VNDK snapshot.
if ctx.DeviceConfig().VndkVersion() != "current" {
return
}
if ctx.DeviceConfig().PlatformVndkVersion() == "" {
return
}
if ctx.DeviceConfig().BoardVndkRuntimeDisable() {
return
}
outputs := vndkSnapshotOutputs(ctx.Config())
snapshotDir := "vndk-snapshot"
var vndkLibPath, vndkLib2ndPath string
snapshotVariantPath := filepath.Join(snapshotDir, ctx.DeviceConfig().DeviceArch())
if ctx.DeviceConfig().BinderBitness() == "32" {
vndkLibPath = filepath.Join(snapshotVariantPath, "binder32", fmt.Sprintf(
"arch-%s-%s", ctx.DeviceConfig().DeviceArch(), ctx.DeviceConfig().DeviceArchVariant()))
vndkLib2ndPath = filepath.Join(snapshotVariantPath, "binder32", fmt.Sprintf(
"arch-%s-%s", ctx.DeviceConfig().DeviceSecondaryArch(), ctx.DeviceConfig().DeviceSecondaryArchVariant()))
} else {
vndkLibPath = filepath.Join(snapshotVariantPath, fmt.Sprintf(
"arch-%s-%s", ctx.DeviceConfig().DeviceArch(), ctx.DeviceConfig().DeviceArchVariant()))
vndkLib2ndPath = filepath.Join(snapshotVariantPath, fmt.Sprintf(
"arch-%s-%s", ctx.DeviceConfig().DeviceSecondaryArch(), ctx.DeviceConfig().DeviceSecondaryArchVariant()))
}
vndkCoreLibPath := filepath.Join(vndkLibPath, "shared", "vndk-core")
vndkSpLibPath := filepath.Join(vndkLibPath, "shared", "vndk-sp")
vndkCoreLib2ndPath := filepath.Join(vndkLib2ndPath, "shared", "vndk-core")
vndkSpLib2ndPath := filepath.Join(vndkLib2ndPath, "shared", "vndk-sp")
noticePath := filepath.Join(snapshotVariantPath, "NOTICE_FILES")
noticeBuilt := make(map[string]bool)
tryBuildNotice := func(m *Module) {
name := ctx.ModuleName(m)
if _, ok := noticeBuilt[name]; ok {
return
}
noticeBuilt[name] = true
if m.NoticeFile().Valid() {
out := android.PathForOutput(ctx, noticePath, name+".so.txt")
ctx.Build(pctx, android.BuildParams{
Rule: android.Cp,
Input: m.NoticeFile().Path(),
Output: out,
Description: "vndk snapshot notice " + name + ".so.txt",
Args: map[string]string{
"cpFlags": "-f -L",
},
})
outputs.notices = append(outputs.notices, out)
}
}
vndkCoreLibraries := vndkCoreLibraries(ctx.Config())
vndkSpLibraries := vndkSpLibraries(ctx.Config())
vndkPrivateLibraries := vndkPrivateLibraries(ctx.Config())
ctx.VisitAllModules(func(module android.Module) {
m, ok := module.(*Module)
if !ok || !m.Enabled() || !m.useVndk() || !m.installable() {
return
}
lib, is_lib := m.linker.(*libraryDecorator)
prebuilt_lib, is_prebuilt_lib := m.linker.(*prebuiltLibraryLinker)
if !(is_lib && lib.shared()) && !(is_prebuilt_lib && prebuilt_lib.shared()) {
return
}
is_2nd := m.Target().Arch.ArchType != ctx.Config().DevicePrimaryArchType()
name := ctx.ModuleName(module)
if inList(name, *vndkCoreLibraries) {
if is_2nd {
out := installVndkSnapshotLib(ctx, name, m, vndkCoreLib2ndPath)
outputs.vndkCoreLibs2nd = append(outputs.vndkCoreLibs2nd, out)
} else {
out := installVndkSnapshotLib(ctx, name, m, vndkCoreLibPath)
outputs.vndkCoreLibs = append(outputs.vndkCoreLibs, out)
}
tryBuildNotice(m)
} else if inList(name, *vndkSpLibraries) {
if is_2nd {
out := installVndkSnapshotLib(ctx, name, m, vndkSpLib2ndPath)
outputs.vndkSpLibs2nd = append(outputs.vndkSpLibs2nd, out)
} else {
out := installVndkSnapshotLib(ctx, name, m, vndkSpLibPath)
outputs.vndkSpLibs = append(outputs.vndkSpLibs, out)
}
tryBuildNotice(m)
}
})
configsPath := filepath.Join(snapshotVariantPath, "configs")
vndkCoreTxt := android.PathForOutput(ctx, configsPath, "vndkcore.libraries.txt")
vndkPrivateTxt := android.PathForOutput(ctx, configsPath, "vndkprivate.libraries.txt")
modulePathTxt := android.PathForOutput(ctx, configsPath, "module_paths.txt")
ctx.Build(pctx, android.BuildParams{
Rule: android.WriteFile,
Output: vndkCoreTxt,
Description: "vndk snapshot vndkcore.libraries.txt",
Args: map[string]string{
"content": android.JoinWithSuffix(*vndkCoreLibraries, ".so", "\\n"),
},
})
outputs.configs = append(outputs.configs, vndkCoreTxt)
ctx.Build(pctx, android.BuildParams{
Rule: android.WriteFile,
Output: vndkPrivateTxt,
Description: "vndk snapshot vndkprivate.libraries.txt",
Args: map[string]string{
"content": android.JoinWithSuffix(*vndkPrivateLibraries, ".so", "\\n"),
},
})
outputs.configs = append(outputs.configs, vndkPrivateTxt)
var modulePathTxtBuilder strings.Builder
first := true
for lib, dir := range modulePaths(ctx.Config()) {
if first {
first = false
} else {
modulePathTxtBuilder.WriteString("\\n")
}
modulePathTxtBuilder.WriteString(lib)
modulePathTxtBuilder.WriteString(".so ")
modulePathTxtBuilder.WriteString(dir)
}
ctx.Build(pctx, android.BuildParams{
Rule: android.WriteFile,
Output: modulePathTxt,
Description: "vndk snapshot module_paths.txt",
Args: map[string]string{
"content": modulePathTxtBuilder.String(),
},
})
outputs.configs = append(outputs.configs, modulePathTxt)
}