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// Copyright (C) 2019 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 sysprop
import (
"android/soong/android"
"android/soong/cc"
"android/soong/java"
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
)
type dependencyTag struct {
blueprint.BaseDependencyTag
name string
}
type syspropLibrary struct {
java.SdkLibrary
commonProperties commonProperties
syspropLibraryProperties syspropLibraryProperties
}
type syspropLibraryProperties struct {
// Determine who owns this sysprop library. Possible values are
// "Platform", "Vendor", or "Odm"
Property_owner string
Api_packages []string
}
type commonProperties struct {
Srcs []string
Recovery *bool
Vendor_available *bool
}
var (
Bool = proptools.Bool
syspropCcTag = dependencyTag{name: "syspropCc"}
)
func init() {
android.RegisterModuleType("sysprop_library", syspropLibraryFactory)
}
func (m *syspropLibrary) CcModuleName() string {
return "lib" + m.Name()
}
func (m *syspropLibrary) SyspropJavaModule() *java.SdkLibrary {
return &m.SdkLibrary
}
func syspropLibraryFactory() android.Module {
m := &syspropLibrary{}
m.AddProperties(
&m.commonProperties,
&m.syspropLibraryProperties,
)
m.InitSdkLibraryProperties()
android.InitAndroidMultiTargetsArchModule(m, android.DeviceSupported, "common")
android.AddLoadHook(m, func(ctx android.LoadHookContext) { syspropLibraryHook(ctx, m) })
return m
}
func syspropLibraryHook(ctx android.LoadHookContext, m *syspropLibrary) {
if m.syspropLibraryProperties.Api_packages == nil {
ctx.PropertyErrorf("api_packages", "sysprop_library must specify api_packages")
}
socSpecific := ctx.SocSpecific()
deviceSpecific := ctx.DeviceSpecific()
productSpecific := ctx.ProductSpecific()
owner := m.syspropLibraryProperties.Property_owner
switch owner {
case "Platform":
// Every partition can access platform-defined properties
break
case "Vendor":
// System can't access vendor's properties
if !socSpecific && !deviceSpecific && !productSpecific {
ctx.ModuleErrorf("None of soc_specific, device_specific, product_specific is true. " +
"System can't access sysprop_library owned by Vendor")
}
case "Odm":
// Only vendor can access Odm-defined properties
if !socSpecific && !deviceSpecific {
ctx.ModuleErrorf("Neither soc_speicifc nor device_specific is true. " +
"Odm-defined properties should be accessed only in Vendor or Odm")
}
default:
ctx.PropertyErrorf("property_owner",
"Unknown value %s: must be one of Platform, Vendor or Odm", owner)
}
ccProps := struct {
Name *string
Soc_specific *bool
Device_specific *bool
Product_specific *bool
Sysprop struct {
Platform *bool
}
}{}
ccProps.Name = proptools.StringPtr(m.CcModuleName())
ccProps.Soc_specific = proptools.BoolPtr(socSpecific)
ccProps.Device_specific = proptools.BoolPtr(deviceSpecific)
ccProps.Product_specific = proptools.BoolPtr(productSpecific)
ccProps.Sysprop.Platform = proptools.BoolPtr(owner == "Platform")
ctx.CreateModule(android.ModuleFactoryAdaptor(cc.LibraryFactory), &m.commonProperties, &ccProps)
}
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