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platform_build_soong
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Merge "Comment android/config.go" am: 65d5b7f0e9 

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1506854

Change-Id: I17c1ce874ed6d05ac918cbf17459456ea0e76ef7
This commit is contained in:
Jingwen Chen 2020-11-25 05:41:53 +00:00 committed by Automerger Merge Worker
parent 7ad5f7b0d3 65d5b7f0e9
commit 29c6597927
1 changed files with 145 additions and 63 deletions
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208
android/config.go
View File

@ -14,6 +14,9 @@
package android
// This is the primary location to write and read all configuration values and
// product variables necessary for soong_build's operation.
import (
"encoding/json"
"fmt"
@ -32,20 +35,31 @@ import (
"android/soong/android/soongconfig"
)
// Bool re-exports proptools.Bool for the android package.
var Bool = proptools.Bool
// String re-exports proptools.String for the android package.
var String = proptools.String
// StringDefault re-exports proptools.StringDefault for the android package.
var StringDefault = proptools.StringDefault
// FutureApiLevelInt is a placeholder constant for unreleased API levels.
const FutureApiLevelInt = 10000
// FutureApiLevel represents unreleased API levels.
var FutureApiLevel = ApiLevel{
value: "current",
number: FutureApiLevelInt,
isPreview: true,
}
// The configuration file name
// configFileName is the name the file containing FileConfigurableOptions from
// soong_ui for the soong_build primary builder.
const configFileName = "soong.config"
// productVariablesFileName contain the product configuration variables from soong_ui for the
// soong_build primary builder and Kati.
const productVariablesFileName = "soong.variables"
// A FileConfigurableOptions contains options which can be configured by the
@ -56,6 +70,8 @@ type FileConfigurableOptions struct {
Host_bionic_arm64 *bool `json:",omitempty"`
}
// SetDefaultConfig resets the receiving FileConfigurableOptions to default
// values.
func (f *FileConfigurableOptions) SetDefaultConfig() {
*f = FileConfigurableOptions{}
}
@ -65,29 +81,38 @@ type Config struct {
*config
}
// BuildDir returns the build output directory for the configuration.
func (c Config) BuildDir() string {
return c.buildDir
}
// A DeviceConfig object represents the configuration for a particular device being built. For
// now there will only be one of these, but in the future there may be multiple devices being
// built
// A DeviceConfig object represents the configuration for a particular device
// being built. For now there will only be one of these, but in the future there
// may be multiple devices being built.
type DeviceConfig struct {
*deviceConfig
}
// VendorConfig represents the configuration for vendor-specific behavior.
type VendorConfig soongconfig.SoongConfig
// Definition of general build configuration for soong_build. Some of these
// configuration values are generated from soong_ui for soong_build,
// communicated over JSON files like soong.config or soong.variables.
type config struct {
// Options configurable with soong.confg
FileConfigurableOptions
// Options configurable with soong.variables
productVariables productVariables
// Only available on configs created by TestConfig
TestProductVariables *productVariables
// A specialized context object for Bazel/Soong mixed builds and migration
// purposes.
BazelContext BazelContext
PrimaryBuilder string
ConfigFileName string
ProductVariablesFileName string
@ -97,8 +122,8 @@ type config struct {
AndroidCommonTarget Target // the Target for common modules for the Android device
AndroidFirstDeviceTarget Target // the first Target for modules for the Android device
// multilibConflicts for an ArchType is true if there is earlier configured device architecture with the same
// multilib value.
// multilibConflicts for an ArchType is true if there is earlier configured
// device architecture with the same multilib value.
multilibConflicts map[ArchType]bool
deviceConfig *deviceConfig
@ -128,6 +153,8 @@ type config struct {
// in tests when a path doesn't exist.
testAllowNonExistentPaths bool
// The list of files that when changed, must invalidate soong_build to
// regenerate build.ninja.
ninjaFileDepsSet sync.Map
OncePer
@ -151,7 +178,8 @@ func loadConfig(config *config) error {
return loadFromConfigFile(&config.productVariables, absolutePath(config.ProductVariablesFileName))
}
// loads configuration options from a JSON file in the cwd.
// loadFromConfigFile loads and decodes configuration options from a JSON file
// in the current working directory.
func loadFromConfigFile(configurable jsonConfigurable, filename string) error {
// Try to open the file
configFileReader, err := os.Open(filename)
@ -191,7 +219,7 @@ func saveToConfigFile(config jsonConfigurable, filename string) error {
f, err := ioutil.TempFile(filepath.Dir(filename), "config")
if err != nil {
return fmt.Errorf("cannot create empty config file %s: %s\n", filename, err.Error())
return fmt.Errorf("cannot create empty config file %s: %s", filename, err.Error())
}
defer os.Remove(f.Name())
defer f.Close()
@ -223,7 +251,7 @@ func NullConfig(buildDir string) Config {
}
}
// TestConfig returns a Config object suitable for using for tests
// TestConfig returns a Config object for testing.
func TestConfig(buildDir string, env map[string]string, bp string, fs map[string][]byte) Config {
envCopy := make(map[string]string)
for k, v := range env {
@ -269,6 +297,9 @@ func TestConfig(buildDir string, env map[string]string, bp string, fs map[string
return Config{config}
}
// TestArchConfigNativeBridge returns a Config object suitable for using
// for tests that need to run the arch mutator for native bridge supported
// archs.
func TestArchConfigNativeBridge(buildDir string, env map[string]string, bp string, fs map[string][]byte) Config {
testConfig := TestArchConfig(buildDir, env, bp, fs)
config := testConfig.config
@ -283,6 +314,8 @@ func TestArchConfigNativeBridge(buildDir string, env map[string]string, bp strin
return testConfig
}
// TestArchConfigFuchsia returns a Config object suitable for using for
// tests that need to run the arch mutator for the Fuchsia arch.
func TestArchConfigFuchsia(buildDir string, env map[string]string, bp string, fs map[string][]byte) Config {
testConfig := TestConfig(buildDir, env, bp, fs)
config := testConfig.config
@ -299,7 +332,8 @@ func TestArchConfigFuchsia(buildDir string, env map[string]string, bp string, fs
return testConfig
}
// TestConfig returns a Config object suitable for using for tests that need to run the arch mutator
// TestArchConfig returns a Config object suitable for using for tests that
// need to run the arch mutator.
func TestArchConfig(buildDir string, env map[string]string, bp string, fs map[string][]byte) Config {
testConfig := TestConfig(buildDir, env, bp, fs)
config := testConfig.config
@ -331,10 +365,10 @@ func TestArchConfig(buildDir string, env map[string]string, bp string, fs map[st
return testConfig
}
// Returns a config object which is "reset" for another bootstrap run.
// Only per-run data is reset. Data which needs to persist across multiple
// runs in the same program execution is carried over (such as Bazel context
// or environment deps).
// ConfigForAdditionalRun is a config object which is "reset" for another
// bootstrap run. Only per-run data is reset. Data which needs to persist across
// multiple runs in the same program execution is carried over (such as Bazel
// context or environment deps).
func ConfigForAdditionalRun(c Config) (Config, error) {
newConfig, err := NewConfig(c.srcDir, c.buildDir, c.moduleListFile)
if err != nil {
@ -345,10 +379,10 @@ func ConfigForAdditionalRun(c Config) (Config, error) {
return newConfig, nil
}
// New creates a new Config object. The srcDir argument specifies the path to
// the root source directory. It also loads the config file, if found.
// NewConfig creates a new Config object. The srcDir argument specifies the path
// to the root source directory. It also loads the config file, if found.
func NewConfig(srcDir, buildDir string, moduleListFile string) (Config, error) {
// Make a config with default options
// Make a config with default options.
config := &config{
ConfigFileName: filepath.Join(buildDir, configFileName),
ProductVariablesFileName: filepath.Join(buildDir, productVariablesFileName),
@ -394,6 +428,8 @@ func NewConfig(srcDir, buildDir string, moduleListFile string) (Config, error) {
config.katiEnabled = true
}
// Sets up the map of target OSes to the finer grained compilation targets
// that are configured from the product variables.
targets, err := decodeTargetProductVariables(config)
if err != nil {
return Config{}, err
@ -427,9 +463,14 @@ func NewConfig(srcDir, buildDir string, moduleListFile string) (Config, error) {
multilib[target.Arch.ArchType.Multilib] = true
}
// Map of OS to compilation targets.
config.Targets = targets
// Compilation targets for host tools.
config.BuildOSTarget = config.Targets[BuildOs][0]
config.BuildOSCommonTarget = getCommonTargets(config.Targets[BuildOs])[0]
// Compilation targets for Android.
if len(config.Targets[Android]) > 0 {
config.AndroidCommonTarget = getCommonTargets(config.Targets[Android])[0]
config.AndroidFirstDeviceTarget = firstTarget(config.Targets[Android], "lib64", "lib32")[0]
@ -444,13 +485,9 @@ func NewConfig(srcDir, buildDir string, moduleListFile string) (Config, error) {
Bool(config.productVariables.ClangCoverage))
config.BazelContext, err = NewBazelContext(config)
if err != nil {
return Config{}, err
}
return Config{config}, nil
}
var TestConfigOsFs = map[string][]byte{}
return Config{config}, err
}
// mockFileSystem replaces all reads with accesses to the provided map of
// filenames to contents stored as a byte slice.
@ -486,12 +523,15 @@ func (c *config) StopBefore() bootstrap.StopBefore {
return c.stopBefore
}
// SetStopBefore configures soong_build to exit earlier at a specific point.
func (c *config) SetStopBefore(stopBefore bootstrap.StopBefore) {
c.stopBefore = stopBefore
}
var _ bootstrap.ConfigStopBefore = (*config)(nil)
// BlueprintToolLocation returns the directory containing build system tools
// from Blueprint, like soong_zip and merge_zips.
func (c *config) BlueprintToolLocation() string {
return filepath.Join(c.buildDir, "host", c.PrebuiltOS(), "bin")
}
@ -534,7 +574,7 @@ func (c *config) NonHermeticHostSystemTool(name string) string {
"for the full list of allowed host tools on your system.", name))
}
// PrebuiltOS returns the name of the host OS used in prebuilts directories
// PrebuiltOS returns the name of the host OS used in prebuilts directories.
func (c *config) PrebuiltOS() string {
switch runtime.GOOS {
case "linux":
@ -551,10 +591,14 @@ func (c *config) GoRoot() string {
return fmt.Sprintf("%s/prebuilts/go/%s", c.srcDir, c.PrebuiltOS())
}
// PrebuiltBuildTool returns the path to a tool in the prebuilts directory containing
// checked-in tools, like Kati, Ninja or Toybox, for the current host OS.
func (c *config) PrebuiltBuildTool(ctx PathContext, tool string) Path {
return PathForSource(ctx, "prebuilts/build-tools", c.PrebuiltOS(), "bin", tool)
}
// CpPreserveSymlinksFlags returns the host-specific flag for the cp(1) command
// to preserve symlinks.
func (c *config) CpPreserveSymlinksFlags() string {
switch runtime.GOOS {
case "darwin":
@ -602,6 +646,8 @@ func (c *config) IsEnvFalse(key string) bool {
return value == "0" || value == "n" || value == "no" || value == "off" || value == "false"
}
// EnvDeps returns the environment variables this build depends on. The first
// call to this function blocks future reads from the environment.
func (c *config) EnvDeps() map[string]string {
c.envLock.Lock()
defer c.envLock.Unlock()
@ -617,11 +663,18 @@ func (c *config) BuildId() string {
return String(c.productVariables.BuildId)
}
// BuildNumberFile returns the path to a text file containing metadata
// representing the current build's number.
//
// Rules that want to reference the build number should read from this file
// without depending on it. They will run whenever their other dependencies
// require them to run and get the current build number. This ensures they don't
// rebuild on every incremental build when the build number changes.
func (c *config) BuildNumberFile(ctx PathContext) Path {
return PathForOutput(ctx, String(c.productVariables.BuildNumberFile))
}
// DeviceName returns the name of the current device target
// DeviceName returns the name of the current device target.
// TODO: take an AndroidModuleContext to select the device name for multi-device builds
func (c *config) DeviceName() string {
return *c.productVariables.DeviceName
@ -693,19 +746,20 @@ func (c *config) AllSupportedApiLevels() []ApiLevel {
return append(levels, c.PreviewApiLevels()...)
}
// DefaultAppTargetSdk returns the API level that platform apps are targeting.
// This converts a codename to the exact ApiLevel it represents.
func (c *config) DefaultAppTargetSdk(ctx EarlyModuleContext) ApiLevel {
if Bool(c.productVariables.Platform_sdk_final) {
return c.PlatformSdkVersion()
} else {
codename := c.PlatformSdkCodename()
if codename == "" {
return NoneApiLevel
}
if codename == "REL" {
panic("Platform_sdk_codename should not be REL when Platform_sdk_final is true")
}
return ApiLevelOrPanic(ctx, codename)
}
codename := c.PlatformSdkCodename()
if codename == "" {
return NoneApiLevel
}
if codename == "REL" {
panic("Platform_sdk_codename should not be REL when Platform_sdk_final is true")
}
return ApiLevelOrPanic(ctx, codename)
}
func (c *config) AppsDefaultVersionName() string {
@ -737,19 +791,17 @@ func (c *config) DefaultAppCertificateDir(ctx PathContext) SourcePath {
defaultCert := String(c.productVariables.DefaultAppCertificate)
if defaultCert != "" {
return PathForSource(ctx, filepath.Dir(defaultCert))
} else {
return PathForSource(ctx, "build/make/target/product/security")
}
return PathForSource(ctx, "build/make/target/product/security")
}
func (c *config) DefaultAppCertificate(ctx PathContext) (pem, key SourcePath) {
defaultCert := String(c.productVariables.DefaultAppCertificate)
if defaultCert != "" {
return PathForSource(ctx, defaultCert+".x509.pem"), PathForSource(ctx, defaultCert+".pk8")
} else {
defaultDir := c.DefaultAppCertificateDir(ctx)
return defaultDir.Join(ctx, "testkey.x509.pem"), defaultDir.Join(ctx, "testkey.pk8")
}
defaultDir := c.DefaultAppCertificateDir(ctx)
return defaultDir.Join(ctx, "testkey.x509.pem"), defaultDir.Join(ctx, "testkey.pk8")
}
func (c *config) ApexKeyDir(ctx ModuleContext) SourcePath {
@ -759,12 +811,14 @@ func (c *config) ApexKeyDir(ctx ModuleContext) SourcePath {
// When defaultCert is unset or is set to the testkeys path, use the APEX keys
// that is under the module dir
return pathForModuleSrc(ctx)
} else {
// If not, APEX keys are under the specified directory
return PathForSource(ctx, filepath.Dir(defaultCert))
}
// If not, APEX keys are under the specified directory
return PathForSource(ctx, filepath.Dir(defaultCert))
}
// AllowMissingDependencies configures Blueprint/Soong to not fail when modules
// are configured to depend on non-existent modules. Note that this does not
// affect missing input dependencies at the Ninja level.
func (c *config) AllowMissingDependencies() bool {
return Bool(c.productVariables.Allow_missing_dependencies)
}
@ -834,9 +888,8 @@ func (c *config) SanitizeDeviceArch() []string {
func (c *config) EnableCFI() bool {
if c.productVariables.EnableCFI == nil {
return true
} else {
return *c.productVariables.EnableCFI
}
return *c.productVariables.EnableCFI
}
func (c *config) DisableScudo() bool {
@ -881,11 +934,13 @@ func (c *config) RunErrorProne() bool {
return c.IsEnvTrue("RUN_ERROR_PRONE")
}
// XrefCorpusName returns the Kythe cross-reference corpus name.
func (c *config) XrefCorpusName() string {
return c.Getenv("XREF_CORPUS")
}
// Returns Compilation Unit encoding to use. Can be 'json' (default), 'proto' or 'all'.
// XrefCuEncoding returns the compilation unit encoding to use for Kythe code
// xrefs. Can be 'json' (default), 'proto' or 'all'.
func (c *config) XrefCuEncoding() string {
if enc := c.Getenv("KYTHE_KZIP_ENCODING"); enc != "" {
return enc
@ -920,6 +975,10 @@ func (c *config) ArtUseReadBarrier() bool {
return Bool(c.productVariables.ArtUseReadBarrier)
}
// Enforce Runtime Resource Overlays for a module. RROs supersede static RROs,
// but some modules still depend on it.
//
// More info: https://source.android.com/devices/architecture/rros
func (c *config) EnforceRROForModule(name string) bool {
enforceList := c.productVariables.EnforceRROTargets
// TODO(b/150820813) Some modules depend on static overlay, remove this after eliminating the dependency.
@ -966,6 +1025,9 @@ func (c *config) ModulesLoadedByPrivilegedModules() []string {
return c.productVariables.ModulesLoadedByPrivilegedModules
}
// DexpreoptGlobalConfigPath returns the path to the dexpreopt.config file in
// the output directory, if it was created during the product configuration
// phase by Kati.
func (c *config) DexpreoptGlobalConfigPath(ctx PathContext) OptionalPath {
if c.productVariables.DexpreoptGlobalConfig == nil {
return OptionalPathForPath(nil)
@ -974,6 +1036,12 @@ func (c *config) DexpreoptGlobalConfigPath(ctx PathContext) OptionalPath {
pathForBuildToolDep(ctx, *c.productVariables.DexpreoptGlobalConfig))
}
// DexpreoptGlobalConfig returns the raw byte contents of the dexpreopt global
// configuration. Since the configuration file was created by Kati during
// product configuration (externally of soong_build), it's not tracked, so we
// also manually add a Ninja file dependency on the configuration file to the
// rule that creates the main build.ninja file. This ensures that build.ninja is
// regenerated correctly if dexpreopt.config changes.
func (c *config) DexpreoptGlobalConfig(ctx PathContext) ([]byte, error) {
path := c.DexpreoptGlobalConfigPath(ctx)
if !path.Valid() {
@ -1332,26 +1400,31 @@ func (c *deviceConfig) BoardMoveRecoveryResourcesToVendorBoot() bool {
// - "system_ext:foo"
//
type ConfiguredJarList struct {
apexes []string // A list of apex components.
jars []string // A list of jar components.
// A list of apex components, which can be an apex name,
// or special names like "platform" or "system_ext".
apexes []string
// A list of jar module name components.
jars []string
}
// The length of the list.
// Len returns the length of the list of jars.
func (l *ConfiguredJarList) Len() int {
return len(l.jars)
}
// Jar component of idx-th pair on the list.
// Jar returns the idx-th jar component of (apex, jar) pairs.
func (l *ConfiguredJarList) Jar(idx int) string {
return l.jars[idx]
}
// Apex component of idx-th pair on the list.
// Apex returns the idx-th apex component of (apex, jar) pairs.
func (l *ConfiguredJarList) Apex(idx int) string {
return l.apexes[idx]
}
// If the list contains a pair with the given jar.
// ContainsJar returns true if the (apex, jar) pairs contains a pair with the
// given jar module name.
func (l *ConfiguredJarList) ContainsJar(jar string) bool {
return InList(jar, l.jars)
}
@ -1366,7 +1439,8 @@ func (l *ConfiguredJarList) containsApexJarPair(apex, jar string) bool {
return false
}
// Index of the first pair with the given jar on the list, or -1 if none.
// IndexOfJar returns the first pair with the given jar name on the list, or -1
// if not found.
func (l *ConfiguredJarList) IndexOfJar(jar string) int {
return IndexList(jar, l.jars)
}
@ -1394,7 +1468,7 @@ func (l *ConfiguredJarList) Append(apex string, jar string) ConfiguredJarList {
return ConfiguredJarList{apexes, jars}
}
// Filter out sublist.
// RemoveList filters out a list of (apex, jar) pairs from the receiving list of pairs.
func (l *ConfiguredJarList) RemoveList(list ConfiguredJarList) ConfiguredJarList {
apexes := make([]string, 0, l.Len())
jars := make([]string, 0, l.Len())
@ -1410,12 +1484,14 @@ func (l *ConfiguredJarList) RemoveList(list ConfiguredJarList) ConfiguredJarList
return ConfiguredJarList{apexes, jars}
}
// A copy of the list of strings containing jar components.
// CopyOfJars returns a copy of the list of strings containing jar module name
// components.
func (l *ConfiguredJarList) CopyOfJars() []string {
return CopyOf(l.jars)
}
// A copy of the list of strings with colon-separated (apex, jar) pairs.
// CopyOfApexJarPairs returns a copy of the list of strings with colon-separated
// (apex, jar) pairs.
func (l *ConfiguredJarList) CopyOfApexJarPairs() []string {
pairs := make([]string, 0, l.Len())
@ -1427,7 +1503,7 @@ func (l *ConfiguredJarList) CopyOfApexJarPairs() []string {
return pairs
}
// A list of build paths based on the given directory prefix.
// BuildPaths returns a list of build paths based on the given directory prefix.
func (l *ConfiguredJarList) BuildPaths(ctx PathContext, dir OutputPath) WritablePaths {
paths := make(WritablePaths, l.Len())
for i, jar := range l.jars {
@ -1436,7 +1512,8 @@ func (l *ConfiguredJarList) BuildPaths(ctx PathContext, dir OutputPath) Writable
return paths
}
// Called when loading configuration from JSON into a configuration structure.
// UnmarshalJSON converts JSON configuration from raw bytes into a
// ConfiguredJarList structure.
func (l *ConfiguredJarList) UnmarshalJSON(b []byte) error {
// Try and unmarshal into a []string each item of which contains a pair
// <apex>:<jar>.
@ -1456,16 +1533,19 @@ func (l *ConfiguredJarList) UnmarshalJSON(b []byte) error {
return nil
}
// ModuleStem hardcodes the stem of framework-minus-apex to return "framework".
//
// TODO(b/139391334): hard coded until we find a good way to query the stem of a
// module before any other mutators are run.
func ModuleStem(module string) string {
// b/139391334: the stem of framework-minus-apex is framework. This is hard coded here until we
// find a good way to query the stem of a module before any other mutators are run.
if module == "framework-minus-apex" {
return "framework"
}
return module
}
// A list of on-device paths.
// DevicePaths computes the on-device paths for the list of (apex, jar) pairs,
// based on the operating system.
func (l *ConfiguredJarList) DevicePaths(cfg Config, ostype OsType) []string {
paths := make([]string, l.Len())
for i, jar := range l.jars {
@ -1526,6 +1606,8 @@ func splitConfiguredJarPair(str string) (string, string, error) {
}
}
// CreateTestConfiguredJarList is a function to create ConfiguredJarList for
// tests.
func CreateTestConfiguredJarList(list []string) ConfiguredJarList {
apexes, jars, err := splitListOfPairsIntoPairOfLists(list)
if err != nil {
@ -1535,6 +1617,7 @@ func CreateTestConfiguredJarList(list []string) ConfiguredJarList {
return ConfiguredJarList{apexes, jars}
}
// EmptyConfiguredJarList returns an empty jar list.
func EmptyConfiguredJarList() ConfiguredJarList {
return ConfiguredJarList{}
}
@ -1544,8 +1627,7 @@ var earlyBootJarsKey = NewOnceKey("earlyBootJars")
func (c *config) BootJars() []string {
return c.Once(earlyBootJarsKey, func() interface{} {
list := c.productVariables.BootJars.CopyOfJars()
list = append(list, c.productVariables.UpdatableBootJars.CopyOfJars()...)
return list
return append(list, c.productVariables.UpdatableBootJars.CopyOfJars()...)
}).([]string)
}