30c9d6e771
The NDK stub library generator needs to know what unreleased API levels exist and what the ordering is between them. This singleton will later be expanded to generate api-level.h to cut down on duplication. Test: make out/soong/api_levels.json && cat out/soong/api_levels.json Bug: None Change-Id: I53126dd2cacb67c331c44f7d7c77c98b176b93cd
503 lines
12 KiB
Go
503 lines
12 KiB
Go
// Copyright 2015 Google Inc. All rights reserved.
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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 android
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"sync"
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"github.com/google/blueprint/proptools"
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)
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var Bool = proptools.Bool
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var String = proptools.String
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// The configuration file name
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const configFileName = "soong.config"
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const productVariablesFileName = "soong.variables"
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// A FileConfigurableOptions contains options which can be configured by the
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// config file. These will be included in the config struct.
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type FileConfigurableOptions struct {
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Mega_device *bool `json:",omitempty"`
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Ndk_abis *bool `json:",omitempty"`
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Host_bionic *bool `json:",omitempty"`
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}
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func (f *FileConfigurableOptions) SetDefaultConfig() {
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*f = FileConfigurableOptions{}
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}
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// A Config object represents the entire build configuration for Android.
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type Config struct {
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*config
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}
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// A DeviceConfig object represents the configuration for a particular device being built. For
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// now there will only be one of these, but in the future there may be multiple devices being
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// built
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type DeviceConfig struct {
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*deviceConfig
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}
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type config struct {
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FileConfigurableOptions
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ProductVariables productVariables
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ConfigFileName string
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ProductVariablesFileName string
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Targets map[OsClass][]Target
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BuildOsVariant string
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deviceConfig *deviceConfig
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srcDir string // the path of the root source directory
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buildDir string // the path of the build output directory
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envLock sync.Mutex
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envDeps map[string]string
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envFrozen bool
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inMake bool
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OncePer
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}
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type deviceConfig struct {
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config *config
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targets []Arch
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OncePer
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}
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type jsonConfigurable interface {
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SetDefaultConfig()
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}
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func loadConfig(config *config) error {
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err := loadFromConfigFile(&config.FileConfigurableOptions, config.ConfigFileName)
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if err != nil {
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return err
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}
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return loadFromConfigFile(&config.ProductVariables, config.ProductVariablesFileName)
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}
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// loads configuration options from a JSON file in the cwd.
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func loadFromConfigFile(configurable jsonConfigurable, filename string) error {
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// Try to open the file
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configFileReader, err := os.Open(filename)
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defer configFileReader.Close()
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if os.IsNotExist(err) {
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// Need to create a file, so that blueprint & ninja don't get in
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// a dependency tracking loop.
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// Make a file-configurable-options with defaults, write it out using
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// a json writer.
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configurable.SetDefaultConfig()
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err = saveToConfigFile(configurable, filename)
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if err != nil {
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return err
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}
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} else {
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// Make a decoder for it
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jsonDecoder := json.NewDecoder(configFileReader)
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err = jsonDecoder.Decode(configurable)
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if err != nil {
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return fmt.Errorf("config file: %s did not parse correctly: "+err.Error(), filename)
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}
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}
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// No error
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return nil
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}
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// atomically writes the config file in case two copies of soong_build are running simultaneously
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// (for example, docs generation and ninja manifest generation)
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func saveToConfigFile(config jsonConfigurable, filename string) error {
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data, err := json.MarshalIndent(&config, "", " ")
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if err != nil {
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return fmt.Errorf("cannot marshal config data: %s", err.Error())
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}
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f, err := ioutil.TempFile(filepath.Dir(filename), "config")
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if err != nil {
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return fmt.Errorf("cannot create empty config file %s: %s\n", filename, err.Error())
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}
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defer os.Remove(f.Name())
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defer f.Close()
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_, err = f.Write(data)
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if err != nil {
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return fmt.Errorf("default config file: %s could not be written: %s", filename, err.Error())
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}
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_, err = f.WriteString("\n")
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if err != nil {
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return fmt.Errorf("default config file: %s could not be written: %s", filename, err.Error())
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}
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f.Close()
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os.Rename(f.Name(), filename)
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return nil
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}
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// TestConfig returns a Config object suitable for using for tests
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func TestConfig(buildDir string) Config {
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return Config{&config{
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buildDir: buildDir,
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}}
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}
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// New creates a new Config object. The srcDir argument specifies the path to
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// the root source directory. It also loads the config file, if found.
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func NewConfig(srcDir, buildDir string) (Config, error) {
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// Make a config with default options
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config := &config{
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ConfigFileName: filepath.Join(buildDir, configFileName),
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ProductVariablesFileName: filepath.Join(buildDir, productVariablesFileName),
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srcDir: srcDir,
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buildDir: buildDir,
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deviceConfig: &deviceConfig{},
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}
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deviceConfig := &deviceConfig{
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config: config,
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}
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config.deviceConfig = deviceConfig
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// Sanity check the build and source directories. This won't catch strange
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// configurations with symlinks, but at least checks the obvious cases.
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absBuildDir, err := filepath.Abs(buildDir)
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if err != nil {
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return Config{}, err
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}
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absSrcDir, err := filepath.Abs(srcDir)
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if err != nil {
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return Config{}, err
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}
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if strings.HasPrefix(absSrcDir, absBuildDir) {
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return Config{}, fmt.Errorf("Build dir must not contain source directory")
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}
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// Load any configurable options from the configuration file
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err = loadConfig(config)
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if err != nil {
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return Config{}, err
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}
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inMakeFile := filepath.Join(buildDir, ".soong.in_make")
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if _, err := os.Stat(inMakeFile); err == nil {
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config.inMake = true
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}
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targets, err := decodeTargetProductVariables(config)
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if err != nil {
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return Config{}, err
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}
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var archConfig []archConfig
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if Bool(config.Mega_device) {
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archConfig = getMegaDeviceConfig()
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} else if Bool(config.Ndk_abis) {
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archConfig = getNdkAbisConfig()
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}
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if archConfig != nil {
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deviceTargets, err := decodeArchSettings(archConfig)
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if err != nil {
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return Config{}, err
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}
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targets[Device] = deviceTargets
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}
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config.Targets = targets
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config.BuildOsVariant = targets[Host][0].String()
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return Config{config}, nil
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}
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func (c *config) RemoveAbandonedFiles() bool {
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return false
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}
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func (c *config) BlueprintToolLocation() string {
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return filepath.Join(c.buildDir, "host", c.PrebuiltOS(), "bin")
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}
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// PrebuiltOS returns the name of the host OS used in prebuilts directories
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func (c *config) PrebuiltOS() string {
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switch runtime.GOOS {
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case "linux":
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return "linux-x86"
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case "darwin":
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return "darwin-x86"
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default:
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panic("Unknown GOOS")
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}
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}
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// GoRoot returns the path to the root directory of the Go toolchain.
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func (c *config) GoRoot() string {
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return fmt.Sprintf("%s/prebuilts/go/%s", c.srcDir, c.PrebuiltOS())
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}
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func (c *config) CpPreserveSymlinksFlags() string {
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switch runtime.GOOS {
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case "darwin":
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return "-R"
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case "linux":
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return "-d"
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default:
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return ""
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}
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}
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func (c *config) Getenv(key string) string {
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var val string
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var exists bool
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c.envLock.Lock()
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defer c.envLock.Unlock()
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if c.envDeps == nil {
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c.envDeps = make(map[string]string)
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}
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if val, exists = c.envDeps[key]; !exists {
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if c.envFrozen {
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panic("Cannot access new environment variables after envdeps are frozen")
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}
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val = os.Getenv(key)
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c.envDeps[key] = val
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}
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return val
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}
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func (c *config) GetenvWithDefault(key string, defaultValue string) string {
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ret := c.Getenv(key)
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if ret == "" {
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return defaultValue
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}
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return ret
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}
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func (c *config) IsEnvTrue(key string) bool {
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value := c.Getenv(key)
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return value == "1" || value == "y" || value == "yes" || value == "on" || value == "true"
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}
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func (c *config) IsEnvFalse(key string) bool {
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value := c.Getenv(key)
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return value == "0" || value == "n" || value == "no" || value == "off" || value == "false"
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}
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func (c *config) EnvDeps() map[string]string {
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c.envLock.Lock()
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defer c.envLock.Unlock()
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c.envFrozen = true
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return c.envDeps
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}
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func (c *config) EmbeddedInMake() bool {
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return c.inMake
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}
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// DeviceName returns the name of the current device target
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// TODO: take an AndroidModuleContext to select the device name for multi-device builds
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func (c *config) DeviceName() string {
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return *c.ProductVariables.DeviceName
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}
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func (c *config) DeviceUsesClang() bool {
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if c.ProductVariables.DeviceUsesClang != nil {
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return *c.ProductVariables.DeviceUsesClang
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}
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return true
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}
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func (c *config) ResourceOverlays() []SourcePath {
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return nil
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}
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func (c *config) PlatformVersion() string {
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return "M"
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}
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func (c *config) PlatformSdkVersionInt() int {
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return *c.ProductVariables.Platform_sdk_version
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}
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func (c *config) PlatformSdkVersion() string {
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return strconv.Itoa(c.PlatformSdkVersionInt())
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}
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func (c *config) PlatformVersionAllCodenames() []string {
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return c.ProductVariables.Platform_version_all_codenames
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}
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func (c *config) BuildNumber() string {
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return "000000"
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}
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func (c *config) ProductAaptConfig() []string {
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return []string{"normal", "large", "xlarge", "hdpi", "xhdpi", "xxhdpi"}
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}
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func (c *config) ProductAaptPreferredConfig() string {
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return "xhdpi"
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}
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func (c *config) ProductAaptCharacteristics() string {
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return "nosdcard"
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}
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func (c *config) DefaultAppCertificateDir(ctx PathContext) SourcePath {
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return PathForSource(ctx, "build/target/product/security")
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}
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func (c *config) DefaultAppCertificate(ctx PathContext) SourcePath {
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return c.DefaultAppCertificateDir(ctx).Join(ctx, "testkey")
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}
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func (c *config) AllowMissingDependencies() bool {
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return Bool(c.ProductVariables.Allow_missing_dependencies)
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}
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func (c *config) DevicePrefer32BitExecutables() bool {
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return Bool(c.ProductVariables.DevicePrefer32BitExecutables)
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}
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func (c *config) SkipDeviceInstall() bool {
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return c.EmbeddedInMake() || Bool(c.Mega_device)
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}
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func (c *config) SanitizeHost() []string {
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return append([]string(nil), c.ProductVariables.SanitizeHost...)
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}
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func (c *config) SanitizeDevice() []string {
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return append([]string(nil), c.ProductVariables.SanitizeDevice...)
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}
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func (c *config) SanitizeDeviceArch() []string {
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return append([]string(nil), c.ProductVariables.SanitizeDeviceArch...)
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}
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func (c *config) EnableCFI() bool {
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return Bool(c.ProductVariables.EnableCFI)
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}
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func (c *config) Android64() bool {
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for _, t := range c.Targets[Device] {
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if t.Arch.ArchType.Multilib == "lib64" {
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return true
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}
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}
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return false
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}
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func (c *config) UseGoma() bool {
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return Bool(c.ProductVariables.UseGoma)
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}
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func (c *config) ClangTidy() bool {
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return Bool(c.ProductVariables.ClangTidy)
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}
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func (c *config) TidyChecks() string {
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if c.ProductVariables.TidyChecks == nil {
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return ""
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}
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return *c.ProductVariables.TidyChecks
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}
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func (c *config) LibartImgHostBaseAddress() string {
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return "0x60000000"
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}
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func (c *config) LibartImgDeviceBaseAddress() string {
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switch c.Targets[Device][0].Arch.ArchType {
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default:
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return "0x70000000"
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case Mips, Mips64:
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return "0x64000000"
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}
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}
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func (c *config) ArtUseReadBarrier() bool {
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return Bool(c.ProductVariables.ArtUseReadBarrier)
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}
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func (c *deviceConfig) Arches() []Arch {
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var arches []Arch
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for _, target := range c.config.Targets[Device] {
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arches = append(arches, target.Arch)
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}
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return arches
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}
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func (c *deviceConfig) VendorPath() string {
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if c.config.ProductVariables.VendorPath != nil {
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return *c.config.ProductVariables.VendorPath
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}
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return "vendor"
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}
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func (c *deviceConfig) CompileVndk() bool {
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if c.config.ProductVariables.DeviceVndkVersion == nil {
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return false
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}
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return *c.config.ProductVariables.DeviceVndkVersion == "current"
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}
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func (c *deviceConfig) BtConfigIncludeDir() string {
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return String(c.config.ProductVariables.BtConfigIncludeDir)
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}
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func (c *deviceConfig) NativeCoverageEnabled() bool {
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return Bool(c.config.ProductVariables.NativeCoverage)
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}
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func (c *deviceConfig) CoverageEnabledForPath(path string) bool {
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coverage := false
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if c.config.ProductVariables.CoveragePaths != nil {
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for _, prefix := range *c.config.ProductVariables.CoveragePaths {
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if strings.HasPrefix(path, prefix) {
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coverage = true
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break
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}
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}
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}
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if coverage && c.config.ProductVariables.CoverageExcludePaths != nil {
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for _, prefix := range *c.config.ProductVariables.CoverageExcludePaths {
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if strings.HasPrefix(path, prefix) {
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coverage = false
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break
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}
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}
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}
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return coverage
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}
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