platform_build_soong/android/androidmk.go

287 lines
7.0 KiB
Go

// Copyright 2015 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 android
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"sort"
"strings"
"github.com/google/blueprint"
)
func init() {
RegisterSingletonType("androidmk", AndroidMkSingleton)
}
type AndroidMkDataProvider interface {
AndroidMk() AndroidMkData
BaseModuleName() string
}
type AndroidMkData struct {
Class string
SubName string
OutputFile OptionalPath
Disabled bool
Include string
Required []string
Custom func(w io.Writer, name, prefix, moduleDir string, data AndroidMkData)
Extra []AndroidMkExtraFunc
preamble bytes.Buffer
}
type AndroidMkExtraFunc func(w io.Writer, outputFile Path)
func AndroidMkSingleton() Singleton {
return &androidMkSingleton{}
}
type androidMkSingleton struct{}
func (c *androidMkSingleton) GenerateBuildActions(ctx SingletonContext) {
if !ctx.Config().EmbeddedInMake() {
return
}
var androidMkModulesList []Module
ctx.VisitAllModules(func(module Module) {
androidMkModulesList = append(androidMkModulesList, module)
})
sort.Sort(AndroidModulesByName{androidMkModulesList, ctx})
transMk := PathForOutput(ctx, "Android"+String(ctx.Config().ProductVariables.Make_suffix)+".mk")
if ctx.Failed() {
return
}
err := translateAndroidMk(ctx, transMk.String(), androidMkModulesList)
if err != nil {
ctx.Errorf(err.Error())
}
ctx.Build(pctx, BuildParams{
Rule: blueprint.Phony,
Output: transMk,
})
}
func translateAndroidMk(ctx SingletonContext, mkFile string, mods []Module) error {
buf := &bytes.Buffer{}
fmt.Fprintln(buf, "LOCAL_MODULE_MAKEFILE := $(lastword $(MAKEFILE_LIST))")
type_stats := make(map[string]int)
for _, mod := range mods {
err := translateAndroidMkModule(ctx, buf, mod)
if err != nil {
os.Remove(mkFile)
return err
}
if ctx.PrimaryModule(mod) == mod {
type_stats[ctx.ModuleType(mod)] += 1
}
}
keys := []string{}
fmt.Fprintln(buf, "\nSTATS.SOONG_MODULE_TYPE :=")
for k := range type_stats {
keys = append(keys, k)
}
sort.Strings(keys)
for _, mod_type := range keys {
fmt.Fprintln(buf, "STATS.SOONG_MODULE_TYPE +=", mod_type)
fmt.Fprintf(buf, "STATS.SOONG_MODULE_TYPE.%s := %d\n", mod_type, type_stats[mod_type])
}
// Don't write to the file if it hasn't changed
if _, err := os.Stat(mkFile); !os.IsNotExist(err) {
if data, err := ioutil.ReadFile(mkFile); err == nil {
matches := buf.Len() == len(data)
if matches {
for i, value := range buf.Bytes() {
if value != data[i] {
matches = false
break
}
}
}
if matches {
return nil
}
}
}
return ioutil.WriteFile(mkFile, buf.Bytes(), 0666)
}
func translateAndroidMkModule(ctx SingletonContext, w io.Writer, mod blueprint.Module) error {
provider, ok := mod.(AndroidMkDataProvider)
if !ok {
return nil
}
name := provider.BaseModuleName()
amod := mod.(Module).base()
if !amod.Enabled() {
return nil
}
if amod.commonProperties.SkipInstall {
return nil
}
if !amod.commonProperties.NamespaceExportedToMake {
// TODO(jeffrygaston) do we want to validate that there are no modules being
// exported to Kati that depend on this module?
return nil
}
data := provider.AndroidMk()
if data.Include == "" {
data.Include = "$(BUILD_PREBUILT)"
}
data.Required = amod.commonProperties.Required
// Make does not understand LinuxBionic
if amod.Os() == LinuxBionic {
return nil
}
prefix := ""
if amod.ArchSpecific() {
switch amod.Os().Class {
case Host:
prefix = "HOST_"
case HostCross:
prefix = "HOST_CROSS_"
case Device:
prefix = "TARGET_"
}
if amod.Arch().ArchType != ctx.Config().Targets[amod.Os().Class][0].Arch.ArchType {
prefix = "2ND_" + prefix
}
}
fmt.Fprintln(&data.preamble, "\ninclude $(CLEAR_VARS)")
fmt.Fprintln(&data.preamble, "LOCAL_PATH :=", filepath.Dir(ctx.BlueprintFile(mod)))
fmt.Fprintln(&data.preamble, "LOCAL_MODULE :=", name+data.SubName)
fmt.Fprintln(&data.preamble, "LOCAL_MODULE_CLASS :=", data.Class)
fmt.Fprintln(&data.preamble, "LOCAL_PREBUILT_MODULE_FILE :=", data.OutputFile.String())
if len(data.Required) > 0 {
fmt.Fprintln(&data.preamble, "LOCAL_REQUIRED_MODULES := "+strings.Join(data.Required, " "))
}
archStr := amod.Arch().ArchType.String()
host := false
switch amod.Os().Class {
case Host:
// Make cannot identify LOCAL_MODULE_HOST_ARCH:= common.
if archStr != "common" {
fmt.Fprintln(&data.preamble, "LOCAL_MODULE_HOST_ARCH :=", archStr)
}
host = true
case HostCross:
// Make cannot identify LOCAL_MODULE_HOST_CROSS_ARCH:= common.
if archStr != "common" {
fmt.Fprintln(&data.preamble, "LOCAL_MODULE_HOST_CROSS_ARCH :=", archStr)
}
host = true
case Device:
// Make cannot identify LOCAL_MODULE_TARGET_ARCH:= common.
if archStr != "common" {
fmt.Fprintln(&data.preamble, "LOCAL_MODULE_TARGET_ARCH :=", archStr)
}
if len(amod.commonProperties.Init_rc) > 0 {
fmt.Fprintln(&data.preamble, "LOCAL_INIT_RC := ", strings.Join(amod.commonProperties.Init_rc, " "))
}
if Bool(amod.commonProperties.Proprietary) {
fmt.Fprintln(&data.preamble, "LOCAL_PROPRIETARY_MODULE := true")
}
if Bool(amod.commonProperties.Vendor) || Bool(amod.commonProperties.Soc_specific) {
fmt.Fprintln(&data.preamble, "LOCAL_VENDOR_MODULE := true")
}
if Bool(amod.commonProperties.Device_specific) {
fmt.Fprintln(&data.preamble, "LOCAL_ODM_MODULE := true")
}
if Bool(amod.commonProperties.Product_specific) {
fmt.Fprintln(&data.preamble, "LOCAL_PRODUCT_MODULE := true")
}
if amod.commonProperties.Owner != nil {
fmt.Fprintln(&data.preamble, "LOCAL_MODULE_OWNER :=", *amod.commonProperties.Owner)
}
if amod.commonProperties.Notice != nil {
fmt.Fprintln(&data.preamble, "LOCAL_NOTICE_FILE :=", "$(LOCAL_PATH)/"+*amod.commonProperties.Notice)
}
}
if host {
makeOs := amod.Os().String()
if amod.Os() == Linux || amod.Os() == LinuxBionic {
makeOs = "linux"
}
fmt.Fprintln(&data.preamble, "LOCAL_MODULE_HOST_OS :=", makeOs)
fmt.Fprintln(&data.preamble, "LOCAL_IS_HOST_MODULE := true")
}
blueprintDir := filepath.Dir(ctx.BlueprintFile(mod))
if data.Custom != nil {
data.Custom(w, name, prefix, blueprintDir, data)
} else {
WriteAndroidMkData(w, data)
}
return nil
}
func WriteAndroidMkData(w io.Writer, data AndroidMkData) {
if data.Disabled {
return
}
if !data.OutputFile.Valid() {
return
}
w.Write(data.preamble.Bytes())
for _, extra := range data.Extra {
extra(w, data.OutputFile.Path())
}
fmt.Fprintln(w, "include "+data.Include)
}