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// Copyright 2017 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 cc
import (
"strings"
"sync"
"android/soong/android"
)
type VndkProperties struct {
Vndk struct {
// declared as a VNDK or VNDK-SP module. The vendor variant
// will be installed in /system instead of /vendor partition.
//
// `vendor_available: true` must set to together for VNDK
// modules.
Enabled *bool
// declared as a VNDK-SP module, which is a subset of VNDK.
//
// `vndk: { enabled: true }` must set together.
//
// All these modules are allowed to link to VNDK-SP or LL-NDK
// modules only. Other dependency will cause link-type errors.
//
// If `support_system_process` is not set or set to false,
// the module is VNDK-core and can link to other VNDK-core,
// VNDK-SP or LL-NDK modules only.
Support_system_process *bool
}
}
type vndkdep struct {
Properties VndkProperties
}
func (vndk *vndkdep) props() []interface{} {
return []interface{}{&vndk.Properties}
}
func (vndk *vndkdep) begin(ctx BaseModuleContext) {}
func (vndk *vndkdep) deps(ctx BaseModuleContext, deps Deps) Deps {
return deps
}
func (vndk *vndkdep) isVndk() bool {
return Bool(vndk.Properties.Vndk.Enabled)
}
func (vndk *vndkdep) isVndkSp() bool {
return Bool(vndk.Properties.Vndk.Support_system_process)
}
func (vndk *vndkdep) typeName() string {
if !vndk.isVndk() {
return "native:vendor"
}
if !vndk.isVndkSp() {
return "native:vendor:vndk"
}
return "native:vendor:vndksp"
}
func (vndk *vndkdep) vndkCheckLinkType(ctx android.ModuleContext, to *Module) {
if to.linker == nil {
return
}
if lib, ok := to.linker.(*libraryDecorator); !ok || !lib.shared() {
// Check only shared libraries.
// Other (static and LL-NDK) libraries are allowed to link.
return
}
if !to.Properties.UseVndk {
ctx.ModuleErrorf("(%s) should not link to %q which is not a vendor-available library",
vndk.typeName(), to.Name())
return
}
if to.vndkdep == nil {
return
}
if (vndk.isVndk() && !to.vndkdep.isVndk()) || (vndk.isVndkSp() && !to.vndkdep.isVndkSp()) {
ctx.ModuleErrorf("(%s) should not link to %q(%s)",
vndk.typeName(), to.Name(), to.vndkdep.typeName())
return
}
}
var (
vndkCoreLibraries []string
vndkSpLibraries []string
llndkLibraries []string
vndkLibrariesLock sync.Mutex
)
// gather list of vndk-core, vndk-sp, and ll-ndk libs
func vndkMutator(mctx android.BottomUpMutatorContext) {
if m, ok := mctx.Module().(*Module); ok {
if _, ok := m.linker.(*llndkStubDecorator); ok {
vndkLibrariesLock.Lock()
defer vndkLibrariesLock.Unlock()
name := strings.TrimSuffix(m.Name(), llndkLibrarySuffix)
if !inList(name, llndkLibraries) {
llndkLibraries = append(llndkLibraries, name)
}
} else if lib, ok := m.linker.(*libraryDecorator); ok && lib.shared() {
if m.vndkdep.isVndk() {
vndkLibrariesLock.Lock()
defer vndkLibrariesLock.Unlock()
if m.vndkdep.isVndkSp() {
if !inList(m.Name(), vndkSpLibraries) {
vndkSpLibraries = append(vndkSpLibraries, m.Name())
}
} else {
if !inList(m.Name(), vndkCoreLibraries) {
vndkCoreLibraries = append(vndkCoreLibraries, m.Name())
}
}
}
}
}
}
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