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// 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 common
import (
"fmt"
"reflect"
"strings"
"android/soong"
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
)
func init() {
soong.RegisterEarlyMutator("variable", VariableMutator)
}
type variableProperties struct {
Product_variables struct {
Device_uses_dlmalloc struct {
Cflags []string
Srcs []string
}
Device_uses_jemalloc struct {
Cflags []string
Srcs []string
Whole_static_libs []string
Include_dirs []string
}
Dlmalloc_alignment struct {
Cflags []string
}
Platform_sdk_version struct {
Asflags []string
}
}
}
var zeroProductVariables variableProperties
type productVariables struct {
Device_uses_jemalloc *bool `json:",omitempty"`
Device_uses_dlmalloc *bool `json:",omitempty"`
Dlmalloc_alignment *int `json:",omitempty"`
Platform_sdk_version *int `json:",omitempty"`
DeviceName *string `json:",omitempty"`
DeviceArch *string `json:",omitempty"`
DeviceArchVariant *string `json:",omitempty"`
DeviceCpuVariant *string `json:",omitempty"`
DeviceAbi *[]string `json:",omitempty"`
DeviceUsesClang *bool `json:",omitempty"`
DeviceSecondaryArch *string `json:",omitempty"`
DeviceSecondaryArchVariant *string `json:",omitempty"`
DeviceSecondaryCpuVariant *string `json:",omitempty"`
DeviceSecondaryAbi *[]string `json:",omitempty"`
HostArch *string `json:",omitempty"`
HostSecondaryArch *string `json:",omitempty"`
}
func boolPtr(v bool) *bool {
return &v
}
func intPtr(v int) *int {
return &v
}
func stringPtr(v string) *string {
return &v
}
func (v *productVariables) SetDefaultConfig() {
*v = productVariables{
Device_uses_dlmalloc: boolPtr(true),
Platform_sdk_version: intPtr(22),
HostArch: stringPtr("x86_64"),
HostSecondaryArch: stringPtr("x86"),
DeviceName: stringPtr("flounder"),
DeviceArch: stringPtr("arm64"),
DeviceCpuVariant: stringPtr("denver64"),
DeviceAbi: &[]string{"arm64-v8a"},
DeviceUsesClang: boolPtr(true),
DeviceSecondaryArch: stringPtr("arm"),
DeviceSecondaryArchVariant: stringPtr("armv7-a-neon"),
DeviceSecondaryCpuVariant: stringPtr("denver"),
DeviceSecondaryAbi: &[]string{"armeabi-v7a"},
}
}
func VariableMutator(mctx blueprint.EarlyMutatorContext) {
var module AndroidModule
var ok bool
if module, ok = mctx.Module().(AndroidModule); !ok {
return
}
// TODO: depend on config variable, create variants, propagate variants up tree
a := module.base()
variableValues := reflect.ValueOf(&a.variableProperties.Product_variables).Elem()
zeroValues := reflect.ValueOf(zeroProductVariables.Product_variables)
for i := 0; i < variableValues.NumField(); i++ {
variableValue := variableValues.Field(i)
zeroValue := zeroValues.Field(i)
name := variableValues.Type().Field(i).Name
property := "product_variables." + proptools.PropertyNameForField(name)
// Check that the variable was set for the product
val := reflect.ValueOf(mctx.Config().(Config).ProductVariables).FieldByName(name)
if !val.IsValid() || val.Kind() != reflect.Ptr || val.IsNil() {
continue
}
val = val.Elem()
// For bools, check that the value is true
if val.Kind() == reflect.Bool && val.Bool() == false {
continue
}
// Check if any properties were set for the module
if reflect.DeepEqual(variableValue.Interface(), zeroValue.Interface()) {
continue
}
a.setVariableProperties(mctx, property, variableValue, val.Interface())
}
}
func (a *AndroidModuleBase) setVariableProperties(ctx blueprint.EarlyMutatorContext,
prefix string, productVariablePropertyValue reflect.Value, variableValue interface{}) {
if variableValue != nil {
printfIntoProperties(productVariablePropertyValue, variableValue)
}
err := proptools.AppendMatchingProperties(a.generalProperties,
productVariablePropertyValue.Addr().Interface(), nil)
if err != nil {
if propertyErr, ok := err.(*proptools.ExtendPropertyError); ok {
ctx.PropertyErrorf(propertyErr.Property, "%s", propertyErr.Err.Error())
} else {
panic(err)
}
}
}
func printfIntoProperties(productVariablePropertyValue reflect.Value, variableValue interface{}) {
for i := 0; i < productVariablePropertyValue.NumField(); i++ {
propertyValue := productVariablePropertyValue.Field(i)
switch propertyValue.Kind() {
case reflect.String:
printfIntoProperty(propertyValue, variableValue)
case reflect.Slice:
for j := 0; j < propertyValue.Len(); j++ {
printfIntoProperty(propertyValue.Index(j), variableValue)
}
case reflect.Struct:
printfIntoProperties(propertyValue, variableValue)
default:
panic(fmt.Errorf("unsupported field kind %q", propertyValue.Kind()))
}
}
}
func printfIntoProperty(propertyValue reflect.Value, variableValue interface{}) {
s := propertyValue.String()
// For now, we only support int formats
var i int
if strings.Contains(s, "%d") {
switch v := variableValue.(type) {
case int:
i = v
case bool:
if v {
i = 1
}
default:
panic(fmt.Errorf("unsupported type %T", variableValue))
}
propertyValue.Set(reflect.ValueOf(fmt.Sprintf(s, i)))
}
}
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