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- // Copyright 2020 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 java
- import (
- "android/soong/android"
- )
- type partitionGroup int
- // Representation of partition group for checking inter-partition library dependencies.
- // Between system and system_ext, there are no restrictions of dependencies,
- // so we can treat these partitions as the same in terms of inter-partition dependency.
- // Same policy is applied between vendor and odm partiton.
- const (
- partitionGroupNone partitionGroup = iota
- // group for system, and system_ext partition
- partitionGroupSystem
- // group for vendor and odm partition
- partitionGroupVendor
- // product partition
- partitionGroupProduct
- )
- func (g partitionGroup) String() string {
- switch g {
- case partitionGroupSystem:
- return "system"
- case partitionGroupVendor:
- return "vendor"
- case partitionGroupProduct:
- return "product"
- }
- return ""
- }
- // Get partition group of java module that can be used at inter-partition dependency check.
- // We currently have three groups
- //
- // (system, system_ext) => system partition group
- // (vendor, odm) => vendor partition group
- // (product) => product partition group
- func (j *Module) partitionGroup(ctx android.EarlyModuleContext) partitionGroup {
- // system and system_ext partition can be treated as the same in terms of inter-partition dependency.
- if j.Platform() || j.SystemExtSpecific() {
- return partitionGroupSystem
- }
- // vendor and odm partition can be treated as the same in terms of inter-partition dependency.
- if j.SocSpecific() || j.DeviceSpecific() {
- return partitionGroupVendor
- }
- // product partition is independent.
- if j.ProductSpecific() {
- return partitionGroupProduct
- }
- panic("Cannot determine partition type")
- }
- func (j *Module) allowListedInterPartitionJavaLibrary(ctx android.EarlyModuleContext) bool {
- return inList(j.Name(), ctx.Config().InterPartitionJavaLibraryAllowList())
- }
- func (j *Module) syspropWithPublicStubs() bool {
- return j.deviceProperties.SyspropPublicStub != ""
- }
- type javaSdkLibraryEnforceContext interface {
- Name() string
- allowListedInterPartitionJavaLibrary(ctx android.EarlyModuleContext) bool
- partitionGroup(ctx android.EarlyModuleContext) partitionGroup
- syspropWithPublicStubs() bool
- }
- var _ javaSdkLibraryEnforceContext = (*Module)(nil)
- func (j *Module) checkPartitionsForJavaDependency(ctx android.EarlyModuleContext, propName string, dep javaSdkLibraryEnforceContext) {
- if dep.allowListedInterPartitionJavaLibrary(ctx) {
- return
- }
- if dep.syspropWithPublicStubs() {
- return
- }
- // If product interface is not enforced, skip check between system and product partition.
- // But still need to check between product and vendor partition because product interface flag
- // just represents enforcement between product and system, and vendor interface enforcement
- // that is enforced here by precondition is representing enforcement between vendor and other partitions.
- if !ctx.Config().EnforceProductPartitionInterface() {
- productToSystem := j.partitionGroup(ctx) == partitionGroupProduct && dep.partitionGroup(ctx) == partitionGroupSystem
- systemToProduct := j.partitionGroup(ctx) == partitionGroupSystem && dep.partitionGroup(ctx) == partitionGroupProduct
- if productToSystem || systemToProduct {
- return
- }
- }
- // If module and dependency library is inter-partition
- if j.partitionGroup(ctx) != dep.partitionGroup(ctx) {
- errorFormat := "dependency on java_library (%q) is not allowed across the partitions (%s -> %s), use java_sdk_library instead"
- ctx.PropertyErrorf(propName, errorFormat, dep.Name(), j.partitionGroup(ctx), dep.partitionGroup(ctx))
- }
- }
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