platform_build_soong/cc/vendor_snapshot.go

840 lines
24 KiB
Go

// Copyright 2020 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 cc
import (
"encoding/json"
"path/filepath"
"sort"
"strings"
"sync"
"github.com/google/blueprint/proptools"
"android/soong/android"
)
const (
vendorSnapshotHeaderSuffix = ".vendor_header."
vendorSnapshotSharedSuffix = ".vendor_shared."
vendorSnapshotStaticSuffix = ".vendor_static."
vendorSnapshotBinarySuffix = ".vendor_binary."
)
var (
vendorSnapshotsLock sync.Mutex
vendorSuffixModulesKey = android.NewOnceKey("vendorSuffixModules")
vendorSnapshotHeaderLibsKey = android.NewOnceKey("vendorSnapshotHeaderLibs")
vendorSnapshotStaticLibsKey = android.NewOnceKey("vendorSnapshotStaticLibs")
vendorSnapshotSharedLibsKey = android.NewOnceKey("vendorSnapshotSharedLibs")
vendorSnapshotBinariesKey = android.NewOnceKey("vendorSnapshotBinaries")
)
// vendor snapshot maps hold names of vendor snapshot modules per arch
func vendorSuffixModules(config android.Config) map[string]bool {
return config.Once(vendorSuffixModulesKey, func() interface{} {
return make(map[string]bool)
}).(map[string]bool)
}
func vendorSnapshotHeaderLibs(config android.Config) *snapshotMap {
return config.Once(vendorSnapshotHeaderLibsKey, func() interface{} {
return newSnapshotMap()
}).(*snapshotMap)
}
func vendorSnapshotSharedLibs(config android.Config) *snapshotMap {
return config.Once(vendorSnapshotSharedLibsKey, func() interface{} {
return newSnapshotMap()
}).(*snapshotMap)
}
func vendorSnapshotStaticLibs(config android.Config) *snapshotMap {
return config.Once(vendorSnapshotStaticLibsKey, func() interface{} {
return newSnapshotMap()
}).(*snapshotMap)
}
func vendorSnapshotBinaries(config android.Config) *snapshotMap {
return config.Once(vendorSnapshotBinariesKey, func() interface{} {
return newSnapshotMap()
}).(*snapshotMap)
}
type vendorSnapshotLibraryProperties struct {
// snapshot version.
Version string
// Target arch name of the snapshot (e.g. 'arm64' for variant 'aosp_arm64')
Target_arch string
// Prebuilt file for each arch.
Src *string `android:"arch_variant"`
// list of flags that will be used for any module that links against this module.
Export_flags []string `android:"arch_variant"`
// Check the prebuilt ELF files (e.g. DT_SONAME, DT_NEEDED, resolution of undefined symbols,
// etc).
Check_elf_files *bool
// Whether this prebuilt needs to depend on sanitize ubsan runtime or not.
Sanitize_ubsan_dep *bool `android:"arch_variant"`
// Whether this prebuilt needs to depend on sanitize minimal runtime or not.
Sanitize_minimal_dep *bool `android:"arch_variant"`
}
type vendorSnapshotLibraryDecorator struct {
*libraryDecorator
properties vendorSnapshotLibraryProperties
androidMkVendorSuffix bool
}
func (p *vendorSnapshotLibraryDecorator) Name(name string) string {
return name + p.NameSuffix()
}
func (p *vendorSnapshotLibraryDecorator) NameSuffix() string {
versionSuffix := p.version()
if p.arch() != "" {
versionSuffix += "." + p.arch()
}
var linkageSuffix string
if p.buildShared() {
linkageSuffix = vendorSnapshotSharedSuffix
} else if p.buildStatic() {
linkageSuffix = vendorSnapshotStaticSuffix
} else {
linkageSuffix = vendorSnapshotHeaderSuffix
}
return linkageSuffix + versionSuffix
}
func (p *vendorSnapshotLibraryDecorator) version() string {
return p.properties.Version
}
func (p *vendorSnapshotLibraryDecorator) arch() string {
return p.properties.Target_arch
}
func (p *vendorSnapshotLibraryDecorator) linkerFlags(ctx ModuleContext, flags Flags) Flags {
p.libraryDecorator.libName = strings.TrimSuffix(ctx.ModuleName(), p.NameSuffix())
return p.libraryDecorator.linkerFlags(ctx, flags)
}
func (p *vendorSnapshotLibraryDecorator) matchesWithDevice(config android.DeviceConfig) bool {
arches := config.Arches()
if len(arches) == 0 || arches[0].ArchType.String() != p.arch() {
return false
}
if !p.header() && p.properties.Src == nil {
return false
}
return true
}
func (p *vendorSnapshotLibraryDecorator) link(ctx ModuleContext,
flags Flags, deps PathDeps, objs Objects) android.Path {
m := ctx.Module().(*Module)
p.androidMkVendorSuffix = vendorSuffixModules(ctx.Config())[m.BaseModuleName()]
if p.header() {
return p.libraryDecorator.link(ctx, flags, deps, objs)
}
if !p.matchesWithDevice(ctx.DeviceConfig()) {
return nil
}
p.libraryDecorator.exportIncludes(ctx)
p.libraryDecorator.reexportFlags(p.properties.Export_flags...)
in := android.PathForModuleSrc(ctx, *p.properties.Src)
p.unstrippedOutputFile = in
if p.shared() {
libName := in.Base()
builderFlags := flagsToBuilderFlags(flags)
// Optimize out relinking against shared libraries whose interface hasn't changed by
// depending on a table of contents file instead of the library itself.
tocFile := android.PathForModuleOut(ctx, libName+".toc")
p.tocFile = android.OptionalPathForPath(tocFile)
TransformSharedObjectToToc(ctx, in, tocFile, builderFlags)
}
return in
}
func (p *vendorSnapshotLibraryDecorator) nativeCoverage() bool {
return false
}
func (p *vendorSnapshotLibraryDecorator) install(ctx ModuleContext, file android.Path) {
if p.matchesWithDevice(ctx.DeviceConfig()) && (p.shared() || p.static()) {
p.baseInstaller.install(ctx, file)
}
}
type vendorSnapshotInterface interface {
version() string
}
func vendorSnapshotLoadHook(ctx android.LoadHookContext, p vendorSnapshotInterface) {
if p.version() != ctx.DeviceConfig().VndkVersion() {
ctx.Module().Disable()
return
}
}
func vendorSnapshotLibrary() (*Module, *vendorSnapshotLibraryDecorator) {
module, library := NewLibrary(android.DeviceSupported)
module.stl = nil
module.sanitize = nil
library.StripProperties.Strip.None = BoolPtr(true)
prebuilt := &vendorSnapshotLibraryDecorator{
libraryDecorator: library,
}
prebuilt.baseLinker.Properties.No_libcrt = BoolPtr(true)
prebuilt.baseLinker.Properties.Nocrt = BoolPtr(true)
// Prevent default system libs (libc, libm, and libdl) from being linked
if prebuilt.baseLinker.Properties.System_shared_libs == nil {
prebuilt.baseLinker.Properties.System_shared_libs = []string{}
}
module.compiler = nil
module.linker = prebuilt
module.installer = prebuilt
module.AddProperties(
&prebuilt.properties,
)
return module, prebuilt
}
func VendorSnapshotSharedFactory() android.Module {
module, prebuilt := vendorSnapshotLibrary()
prebuilt.libraryDecorator.BuildOnlyShared()
android.AddLoadHook(module, func(ctx android.LoadHookContext) {
vendorSnapshotLoadHook(ctx, prebuilt)
})
return module.Init()
}
func VendorSnapshotStaticFactory() android.Module {
module, prebuilt := vendorSnapshotLibrary()
prebuilt.libraryDecorator.BuildOnlyStatic()
android.AddLoadHook(module, func(ctx android.LoadHookContext) {
vendorSnapshotLoadHook(ctx, prebuilt)
})
return module.Init()
}
func VendorSnapshotHeaderFactory() android.Module {
module, prebuilt := vendorSnapshotLibrary()
prebuilt.libraryDecorator.HeaderOnly()
android.AddLoadHook(module, func(ctx android.LoadHookContext) {
vendorSnapshotLoadHook(ctx, prebuilt)
})
return module.Init()
}
type vendorSnapshotBinaryProperties struct {
// snapshot version.
Version string
// Target arch name of the snapshot (e.g. 'arm64' for variant 'aosp_arm64_ab')
Target_arch string
// Prebuilt file for each arch.
Src *string `android:"arch_variant"`
}
type vendorSnapshotBinaryDecorator struct {
*binaryDecorator
properties vendorSnapshotBinaryProperties
androidMkVendorSuffix bool
}
func (p *vendorSnapshotBinaryDecorator) Name(name string) string {
return name + p.NameSuffix()
}
func (p *vendorSnapshotBinaryDecorator) NameSuffix() string {
versionSuffix := p.version()
if p.arch() != "" {
versionSuffix += "." + p.arch()
}
return vendorSnapshotBinarySuffix + versionSuffix
}
func (p *vendorSnapshotBinaryDecorator) version() string {
return p.properties.Version
}
func (p *vendorSnapshotBinaryDecorator) arch() string {
return p.properties.Target_arch
}
func (p *vendorSnapshotBinaryDecorator) matchesWithDevice(config android.DeviceConfig) bool {
if config.DeviceArch() != p.arch() {
return false
}
if p.properties.Src == nil {
return false
}
return true
}
func (p *vendorSnapshotBinaryDecorator) link(ctx ModuleContext,
flags Flags, deps PathDeps, objs Objects) android.Path {
if !p.matchesWithDevice(ctx.DeviceConfig()) {
return nil
}
in := android.PathForModuleSrc(ctx, *p.properties.Src)
builderFlags := flagsToBuilderFlags(flags)
p.unstrippedOutputFile = in
binName := in.Base()
if p.needsStrip(ctx) {
stripped := android.PathForModuleOut(ctx, "stripped", binName)
p.stripExecutableOrSharedLib(ctx, in, stripped, builderFlags)
in = stripped
}
m := ctx.Module().(*Module)
p.androidMkVendorSuffix = vendorSuffixModules(ctx.Config())[m.BaseModuleName()]
// use cpExecutable to make it executable
outputFile := android.PathForModuleOut(ctx, binName)
ctx.Build(pctx, android.BuildParams{
Rule: android.CpExecutable,
Description: "prebuilt",
Output: outputFile,
Input: in,
})
return outputFile
}
func VendorSnapshotBinaryFactory() android.Module {
module, binary := NewBinary(android.DeviceSupported)
binary.baseLinker.Properties.No_libcrt = BoolPtr(true)
binary.baseLinker.Properties.Nocrt = BoolPtr(true)
// Prevent default system libs (libc, libm, and libdl) from being linked
if binary.baseLinker.Properties.System_shared_libs == nil {
binary.baseLinker.Properties.System_shared_libs = []string{}
}
prebuilt := &vendorSnapshotBinaryDecorator{
binaryDecorator: binary,
}
module.compiler = nil
module.sanitize = nil
module.stl = nil
module.linker = prebuilt
android.AddLoadHook(module, func(ctx android.LoadHookContext) {
vendorSnapshotLoadHook(ctx, prebuilt)
})
module.AddProperties(&prebuilt.properties)
return module.Init()
}
func init() {
android.RegisterSingletonType("vendor-snapshot", VendorSnapshotSingleton)
android.RegisterModuleType("vendor_snapshot_shared", VendorSnapshotSharedFactory)
android.RegisterModuleType("vendor_snapshot_static", VendorSnapshotStaticFactory)
android.RegisterModuleType("vendor_snapshot_header", VendorSnapshotHeaderFactory)
android.RegisterModuleType("vendor_snapshot_binary", VendorSnapshotBinaryFactory)
}
func VendorSnapshotSingleton() android.Singleton {
return &vendorSnapshotSingleton{}
}
type vendorSnapshotSingleton struct {
vendorSnapshotZipFile android.OptionalPath
}
var (
// Modules under following directories are ignored. They are OEM's and vendor's
// proprietary modules(device/, vendor/, and hardware/).
// TODO(b/65377115): Clean up these with more maintainable way
vendorProprietaryDirs = []string{
"device",
"vendor",
"hardware",
}
// Modules under following directories are included as they are in AOSP,
// although hardware/ is normally for vendor's own.
// TODO(b/65377115): Clean up these with more maintainable way
aospDirsUnderProprietary = []string{
"hardware/interfaces",
"hardware/libhardware",
"hardware/libhardware_legacy",
"hardware/ril",
}
)
// Determine if a dir under source tree is an SoC-owned proprietary directory, such as
// device/, vendor/, etc.
func isVendorProprietaryPath(dir string) bool {
for _, p := range vendorProprietaryDirs {
if strings.HasPrefix(dir, p) {
// filter out AOSP defined directories, e.g. hardware/interfaces/
aosp := false
for _, p := range aospDirsUnderProprietary {
if strings.HasPrefix(dir, p) {
aosp = true
break
}
}
if !aosp {
return true
}
}
}
return false
}
// Determine if a module is going to be included in vendor snapshot or not.
//
// Targets of vendor snapshot are "vendor: true" or "vendor_available: true" modules in
// AOSP. They are not guaranteed to be compatible with older vendor images. (e.g. might
// depend on newer VNDK) So they are captured as vendor snapshot To build older vendor
// image and newer system image altogether.
func isVendorSnapshotModule(m *Module, moduleDir string) bool {
if !m.Enabled() {
return false
}
// skip proprietary modules, but include all VNDK (static)
if isVendorProprietaryPath(moduleDir) && !m.IsVndk() {
return false
}
if m.Target().Os.Class != android.Device {
return false
}
if m.Target().NativeBridge == android.NativeBridgeEnabled {
return false
}
// the module must be installed in /vendor
if !m.installable() || m.isSnapshotPrebuilt() || !m.inVendor() {
return false
}
// exclude test modules
if _, ok := m.linker.(interface{ gtest() bool }); ok {
return false
}
// TODO(b/65377115): add full support for sanitizer
if m.sanitize != nil && !m.sanitize.isUnsanitizedVariant() {
return false
}
// Libraries
if l, ok := m.linker.(snapshotLibraryInterface); ok {
if l.static() {
return proptools.BoolDefault(m.VendorProperties.Vendor_available, true)
}
if l.shared() {
return !m.IsVndk()
}
return true
}
// Binaries
_, ok := m.linker.(*binaryDecorator)
if !ok {
if _, ok := m.linker.(*prebuiltBinaryLinker); !ok {
return false
}
}
return proptools.BoolDefault(m.VendorProperties.Vendor_available, true)
}
func (c *vendorSnapshotSingleton) GenerateBuildActions(ctx android.SingletonContext) {
// BOARD_VNDK_VERSION must be set to 'current' in order to generate a vendor snapshot.
if ctx.DeviceConfig().VndkVersion() != "current" {
return
}
var snapshotOutputs android.Paths
/*
Vendor snapshot zipped artifacts directory structure:
{SNAPSHOT_ARCH}/
arch-{TARGET_ARCH}-{TARGET_ARCH_VARIANT}/
shared/
(.so shared libraries)
static/
(.a static libraries)
header/
(header only libraries)
binary/
(executable binaries)
arch-{TARGET_2ND_ARCH}-{TARGET_2ND_ARCH_VARIANT}/
shared/
(.so shared libraries)
static/
(.a static libraries)
header/
(header only libraries)
binary/
(executable binaries)
NOTICE_FILES/
(notice files, e.g. libbase.txt)
configs/
(config files, e.g. init.rc files, vintf_fragments.xml files, etc.)
include/
(header files of same directory structure with source tree)
*/
snapshotDir := "vendor-snapshot"
snapshotArchDir := filepath.Join(snapshotDir, ctx.DeviceConfig().DeviceArch())
includeDir := filepath.Join(snapshotArchDir, "include")
configsDir := filepath.Join(snapshotArchDir, "configs")
noticeDir := filepath.Join(snapshotArchDir, "NOTICE_FILES")
installedNotices := make(map[string]bool)
installedConfigs := make(map[string]bool)
var headers android.Paths
installSnapshot := func(m *Module) android.Paths {
targetArch := "arch-" + m.Target().Arch.ArchType.String()
if m.Target().Arch.ArchVariant != "" {
targetArch += "-" + m.Target().Arch.ArchVariant
}
var ret android.Paths
prop := struct {
ModuleName string `json:",omitempty"`
RelativeInstallPath string `json:",omitempty"`
// library flags
ExportedDirs []string `json:",omitempty"`
ExportedSystemDirs []string `json:",omitempty"`
ExportedFlags []string `json:",omitempty"`
SanitizeMinimalDep bool `json:",omitempty"`
SanitizeUbsanDep bool `json:",omitempty"`
// binary flags
Symlinks []string `json:",omitempty"`
// dependencies
SharedLibs []string `json:",omitempty"`
RuntimeLibs []string `json:",omitempty"`
Required []string `json:",omitempty"`
// extra config files
InitRc []string `json:",omitempty"`
VintfFragments []string `json:",omitempty"`
}{}
// Common properties among snapshots.
prop.ModuleName = ctx.ModuleName(m)
prop.RelativeInstallPath = m.RelativeInstallPath()
prop.RuntimeLibs = m.Properties.SnapshotRuntimeLibs
prop.Required = m.RequiredModuleNames()
for _, path := range m.InitRc() {
prop.InitRc = append(prop.InitRc, filepath.Join("configs", path.Base()))
}
for _, path := range m.VintfFragments() {
prop.VintfFragments = append(prop.VintfFragments, filepath.Join("configs", path.Base()))
}
// install config files. ignores any duplicates.
for _, path := range append(m.InitRc(), m.VintfFragments()...) {
out := filepath.Join(configsDir, path.Base())
if !installedConfigs[out] {
installedConfigs[out] = true
ret = append(ret, copyFile(ctx, path, out))
}
}
var propOut string
if l, ok := m.linker.(snapshotLibraryInterface); ok {
// library flags
prop.ExportedFlags = l.exportedFlags()
for _, dir := range l.exportedDirs() {
prop.ExportedDirs = append(prop.ExportedDirs, filepath.Join("include", dir.String()))
}
for _, dir := range l.exportedSystemDirs() {
prop.ExportedSystemDirs = append(prop.ExportedSystemDirs, filepath.Join("include", dir.String()))
}
// shared libs dependencies aren't meaningful on static or header libs
if l.shared() {
prop.SharedLibs = m.Properties.SnapshotSharedLibs
}
if l.static() && m.sanitize != nil {
prop.SanitizeMinimalDep = m.sanitize.Properties.MinimalRuntimeDep || enableMinimalRuntime(m.sanitize)
prop.SanitizeUbsanDep = m.sanitize.Properties.UbsanRuntimeDep || enableUbsanRuntime(m.sanitize)
}
var libType string
if l.static() {
libType = "static"
} else if l.shared() {
libType = "shared"
} else {
libType = "header"
}
var stem string
// install .a or .so
if libType != "header" {
libPath := m.outputFile.Path()
stem = libPath.Base()
snapshotLibOut := filepath.Join(snapshotArchDir, targetArch, libType, stem)
ret = append(ret, copyFile(ctx, libPath, snapshotLibOut))
} else {
stem = ctx.ModuleName(m)
}
propOut = filepath.Join(snapshotArchDir, targetArch, libType, stem+".json")
} else {
// binary flags
prop.Symlinks = m.Symlinks()
prop.SharedLibs = m.Properties.SnapshotSharedLibs
// install bin
binPath := m.outputFile.Path()
snapshotBinOut := filepath.Join(snapshotArchDir, targetArch, "binary", binPath.Base())
ret = append(ret, copyFile(ctx, binPath, snapshotBinOut))
propOut = snapshotBinOut + ".json"
}
j, err := json.Marshal(prop)
if err != nil {
ctx.Errorf("json marshal to %q failed: %#v", propOut, err)
return nil
}
ret = append(ret, writeStringToFile(ctx, string(j), propOut))
return ret
}
ctx.VisitAllModules(func(module android.Module) {
m, ok := module.(*Module)
if !ok {
return
}
moduleDir := ctx.ModuleDir(module)
if !isVendorSnapshotModule(m, moduleDir) {
return
}
snapshotOutputs = append(snapshotOutputs, installSnapshot(m)...)
if l, ok := m.linker.(snapshotLibraryInterface); ok {
headers = append(headers, l.snapshotHeaders()...)
}
if len(m.NoticeFiles()) > 0 {
noticeName := ctx.ModuleName(m) + ".txt"
noticeOut := filepath.Join(noticeDir, noticeName)
// skip already copied notice file
if !installedNotices[noticeOut] {
installedNotices[noticeOut] = true
snapshotOutputs = append(snapshotOutputs, combineNotices(
ctx, m.NoticeFiles(), noticeOut))
}
}
})
// install all headers after removing duplicates
for _, header := range android.FirstUniquePaths(headers) {
snapshotOutputs = append(snapshotOutputs, copyFile(
ctx, header, filepath.Join(includeDir, header.String())))
}
// All artifacts are ready. Sort them to normalize ninja and then zip.
sort.Slice(snapshotOutputs, func(i, j int) bool {
return snapshotOutputs[i].String() < snapshotOutputs[j].String()
})
zipPath := android.PathForOutput(ctx, snapshotDir, "vendor-"+ctx.Config().DeviceName()+".zip")
zipRule := android.NewRuleBuilder()
// filenames in rspfile from FlagWithRspFileInputList might be single-quoted. Remove it with tr
snapshotOutputList := android.PathForOutput(ctx, snapshotDir, "vendor-"+ctx.Config().DeviceName()+"_list")
zipRule.Command().
Text("tr").
FlagWithArg("-d ", "\\'").
FlagWithRspFileInputList("< ", snapshotOutputs).
FlagWithOutput("> ", snapshotOutputList)
zipRule.Temporary(snapshotOutputList)
zipRule.Command().
BuiltTool(ctx, "soong_zip").
FlagWithOutput("-o ", zipPath).
FlagWithArg("-C ", android.PathForOutput(ctx, snapshotDir).String()).
FlagWithInput("-l ", snapshotOutputList)
zipRule.Build(pctx, ctx, zipPath.String(), "vendor snapshot "+zipPath.String())
zipRule.DeleteTemporaryFiles()
c.vendorSnapshotZipFile = android.OptionalPathForPath(zipPath)
}
func (c *vendorSnapshotSingleton) MakeVars(ctx android.MakeVarsContext) {
ctx.Strict("SOONG_VENDOR_SNAPSHOT_ZIP", c.vendorSnapshotZipFile.String())
}
type snapshotInterface interface {
matchesWithDevice(config android.DeviceConfig) bool
}
var _ snapshotInterface = (*vndkPrebuiltLibraryDecorator)(nil)
var _ snapshotInterface = (*vendorSnapshotLibraryDecorator)(nil)
var _ snapshotInterface = (*vendorSnapshotBinaryDecorator)(nil)
// gathers all snapshot modules for vendor, and disable unnecessary snapshots
// TODO(b/145966707): remove mutator and utilize android.Prebuilt to override source modules
func VendorSnapshotMutator(ctx android.BottomUpMutatorContext) {
vndkVersion := ctx.DeviceConfig().VndkVersion()
// don't need snapshot if current
if vndkVersion == "current" || vndkVersion == "" {
return
}
module, ok := ctx.Module().(*Module)
if !ok || !module.Enabled() || module.VndkVersion() != vndkVersion {
return
}
snapshot, ok := module.linker.(snapshotInterface)
if !ok {
return
}
if !snapshot.matchesWithDevice(ctx.DeviceConfig()) {
// Disable unnecessary snapshot module, but do not disable
// vndk_prebuilt_shared because they might be packed into vndk APEX
if !module.IsVndk() {
module.Disable()
}
return
}
var snapshotMap *snapshotMap
if lib, ok := module.linker.(libraryInterface); ok {
if lib.static() {
snapshotMap = vendorSnapshotStaticLibs(ctx.Config())
} else if lib.shared() {
snapshotMap = vendorSnapshotSharedLibs(ctx.Config())
} else {
// header
snapshotMap = vendorSnapshotHeaderLibs(ctx.Config())
}
} else if _, ok := module.linker.(*vendorSnapshotBinaryDecorator); ok {
snapshotMap = vendorSnapshotBinaries(ctx.Config())
} else {
return
}
vendorSnapshotsLock.Lock()
defer vendorSnapshotsLock.Unlock()
snapshotMap.add(module.BaseModuleName(), ctx.Arch().ArchType, ctx.ModuleName())
}
// Disables source modules which have snapshots
func VendorSnapshotSourceMutator(ctx android.BottomUpMutatorContext) {
if !ctx.Device() {
return
}
vndkVersion := ctx.DeviceConfig().VndkVersion()
// don't need snapshot if current
if vndkVersion == "current" || vndkVersion == "" {
return
}
module, ok := ctx.Module().(*Module)
if !ok {
return
}
// vendor suffix should be added to snapshots if the source module isn't vendor: true.
if !module.SocSpecific() {
// But we can't just check SocSpecific() since we already passed the image mutator.
// Check ramdisk and recovery to see if we are real "vendor: true" module.
ramdisk_available := module.InRamdisk() && !module.OnlyInRamdisk()
recovery_available := module.InRecovery() && !module.OnlyInRecovery()
if !ramdisk_available && !recovery_available {
vendorSnapshotsLock.Lock()
defer vendorSnapshotsLock.Unlock()
vendorSuffixModules(ctx.Config())[ctx.ModuleName()] = true
}
}
if module.isSnapshotPrebuilt() || module.VndkVersion() != ctx.DeviceConfig().VndkVersion() {
// only non-snapshot modules with BOARD_VNDK_VERSION
return
}
var snapshotMap *snapshotMap
if lib, ok := module.linker.(libraryInterface); ok {
if lib.static() {
snapshotMap = vendorSnapshotStaticLibs(ctx.Config())
} else if lib.shared() {
snapshotMap = vendorSnapshotSharedLibs(ctx.Config())
} else {
// header
snapshotMap = vendorSnapshotHeaderLibs(ctx.Config())
}
} else if _, ok := module.linker.(*binaryDecorator); ok {
snapshotMap = vendorSnapshotBinaries(ctx.Config())
} else if _, ok := module.linker.(*prebuiltBinaryLinker); ok {
snapshotMap = vendorSnapshotBinaries(ctx.Config())
} else {
return
}
if _, ok := snapshotMap.get(ctx.ModuleName(), ctx.Arch().ArchType); !ok {
// Corresponding snapshot doesn't exist
return
}
// Disables source modules if corresponding snapshot exists.
if lib, ok := module.linker.(libraryInterface); ok && lib.buildStatic() && lib.buildShared() {
// But do not disable because the shared variant depends on the static variant.
module.SkipInstall()
module.Properties.HideFromMake = true
} else {
module.Disable()
}
}