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// Copyright 2021 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 (
"github.com/google/blueprint/proptools"
"sort"
"strings"
"android/soong/android"
"android/soong/fuzz"
)
func init() {
RegisterJavaFuzzBuildComponents(android.InitRegistrationContext)
}
func RegisterJavaFuzzBuildComponents(ctx android.RegistrationContext) {
ctx.RegisterModuleType("java_fuzz_host", FuzzFactory)
ctx.RegisterSingletonType("java_fuzz_packaging", javaFuzzPackagingFactory)
}
type JavaFuzzLibrary struct {
Library
fuzzPackagedModule fuzz.FuzzPackagedModule
}
func (j *JavaFuzzLibrary) GenerateAndroidBuildActions(ctx android.ModuleContext) {
j.Library.GenerateAndroidBuildActions(ctx)
if j.fuzzPackagedModule.FuzzProperties.Corpus != nil {
j.fuzzPackagedModule.Corpus = android.PathsForModuleSrc(ctx, j.fuzzPackagedModule.FuzzProperties.Corpus)
}
if j.fuzzPackagedModule.FuzzProperties.Data != nil {
j.fuzzPackagedModule.Data = android.PathsForModuleSrc(ctx, j.fuzzPackagedModule.FuzzProperties.Data)
}
if j.fuzzPackagedModule.FuzzProperties.Dictionary != nil {
j.fuzzPackagedModule.Dictionary = android.PathForModuleSrc(ctx, *j.fuzzPackagedModule.FuzzProperties.Dictionary)
}
if j.fuzzPackagedModule.FuzzProperties.Fuzz_config != nil {
configPath := android.PathForModuleOut(ctx, "config").Join(ctx, "config.json")
android.WriteFileRule(ctx, configPath, j.fuzzPackagedModule.FuzzProperties.Fuzz_config.String())
j.fuzzPackagedModule.Config = configPath
}
}
// java_fuzz builds and links sources into a `.jar` file for the host.
//
// By default, a java_fuzz produces a `.jar` file containing `.class` files.
// This jar is not suitable for installing on a device.
func FuzzFactory() android.Module {
module := &JavaFuzzLibrary{}
module.addHostProperties()
module.Module.properties.Installable = proptools.BoolPtr(false)
module.AddProperties(&module.fuzzPackagedModule.FuzzProperties)
// java_fuzz packaging rules collide when both linux_glibc and linux_bionic are enabled, disable the linux_bionic variants.
android.AddLoadHook(module, func(ctx android.LoadHookContext) {
disableLinuxBionic := struct {
Target struct {
Linux_bionic struct {
Enabled *bool
}
}
}{}
disableLinuxBionic.Target.Linux_bionic.Enabled = proptools.BoolPtr(false)
ctx.AppendProperties(&disableLinuxBionic)
})
module.initModuleAndImport(module)
android.InitSdkAwareModule(module)
InitJavaModule(module, android.HostSupported)
return module
}
// Responsible for generating rules that package fuzz targets into
// their architecture & target/host specific zip file.
type javaFuzzPackager struct {
fuzz.FuzzPackager
}
func javaFuzzPackagingFactory() android.Singleton {
return &javaFuzzPackager{}
}
func (s *javaFuzzPackager) GenerateBuildActions(ctx android.SingletonContext) {
// Map between each architecture + host/device combination.
archDirs := make(map[fuzz.ArchOs][]fuzz.FileToZip)
// List of individual fuzz targets.
s.FuzzTargets = make(map[string]bool)
ctx.VisitAllModules(func(module android.Module) {
// Discard non-fuzz targets.
javaModule, ok := module.(*JavaFuzzLibrary)
if !ok {
return
}
fuzzModuleValidator := fuzz.FuzzModule{
javaModule.ModuleBase,
javaModule.DefaultableModuleBase,
javaModule.ApexModuleBase,
}
if ok := fuzz.IsValid(fuzzModuleValidator); !ok || *javaModule.Module.properties.Installable {
return
}
hostOrTargetString := "target"
if javaModule.Host() {
hostOrTargetString = "host"
}
archString := javaModule.Arch().ArchType.String()
archDir := android.PathForIntermediates(ctx, "fuzz", hostOrTargetString, archString)
archOs := fuzz.ArchOs{HostOrTarget: hostOrTargetString, Arch: archString, Dir: archDir.String()}
var files []fuzz.FileToZip
builder := android.NewRuleBuilder(pctx, ctx)
// Package the artifacts (data, corpus, config and dictionary into a zipfile.
files = s.PackageArtifacts(ctx, module, javaModule.fuzzPackagedModule, archDir, builder)
// Add .jar
files = append(files, fuzz.FileToZip{javaModule.outputFile, ""})
archDirs[archOs], ok = s.BuildZipFile(ctx, module, javaModule.fuzzPackagedModule, files, builder, archDir, archString, "host", archOs, archDirs)
if !ok {
return
}
})
s.CreateFuzzPackage(ctx, archDirs, fuzz.Java, pctx)
}
func (s *javaFuzzPackager) MakeVars(ctx android.MakeVarsContext) {
packages := s.Packages.Strings()
sort.Strings(packages)
ctx.Strict("SOONG_JAVA_FUZZ_PACKAGING_ARCH_MODULES", strings.Join(packages, " "))
// Preallocate the slice of fuzz targets to minimize memory allocations.
s.PreallocateSlice(ctx, "ALL_JAVA_FUZZ_TARGETS")
}
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