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Diffstat (limited to 'cc/fuzz.go')
-rw-r--r--cc/fuzz.go202
1 files changed, 148 insertions, 54 deletions
diff --git a/cc/fuzz.go b/cc/fuzz.go
index 7aa8b91c7..92f2c5e44 100644
--- a/cc/fuzz.go
+++ b/cc/fuzz.go
@@ -28,7 +28,8 @@ import (
func init() {
android.RegisterModuleType("cc_fuzz", LibFuzzFactory)
- android.RegisterSingletonType("cc_fuzz_packaging", fuzzPackagingFactory)
+ android.RegisterParallelSingletonType("cc_fuzz_packaging", fuzzPackagingFactory)
+ android.RegisterParallelSingletonType("cc_fuzz_presubmit_packaging", fuzzPackagingFactoryPresubmit)
}
type FuzzProperties struct {
@@ -95,6 +96,7 @@ func fuzzMutatorDeps(mctx android.TopDownMutatorContext) {
// your device, or $ANDROID_PRODUCT_OUT/data/fuzz in your build tree.
func LibFuzzFactory() android.Module {
module := NewFuzzer(android.HostAndDeviceSupported)
+ module.testModule = true
return module.Init()
}
@@ -103,7 +105,8 @@ type fuzzBinary struct {
*baseCompiler
fuzzPackagedModule fuzz.FuzzPackagedModule
installedSharedDeps []string
- sharedLibraries android.Paths
+ sharedLibraries android.RuleBuilderInstalls
+ data []android.DataPath
}
func (fuzz *fuzzBinary) fuzzBinary() bool {
@@ -125,13 +128,13 @@ func (fuzzBin *fuzzBinary) linkerDeps(ctx DepsContext, deps Deps) Deps {
if ctx.Config().Getenv("FUZZ_FRAMEWORK") == "AFL" {
deps.HeaderLibs = append(deps.HeaderLibs, "libafl_headers")
} else {
- deps.StaticLibs = append(deps.StaticLibs, config.LibFuzzerRuntimeLibrary(ctx.toolchain()))
+ deps.StaticLibs = append(deps.StaticLibs, config.LibFuzzerRuntimeLibrary())
// Fuzzers built with HWASAN should use the interceptors for better
// mutation based on signals in strcmp, memcpy, etc. This is only needed for
// fuzz targets, not generic HWASAN-ified binaries or libraries.
if module, ok := ctx.Module().(*Module); ok {
if module.IsSanitizerEnabled(Hwasan) {
- deps.StaticLibs = append(deps.StaticLibs, config.LibFuzzerRuntimeInterceptors(ctx.toolchain()))
+ deps.StaticLibs = append(deps.StaticLibs, config.LibFuzzerRuntimeInterceptors())
}
}
}
@@ -141,25 +144,35 @@ func (fuzzBin *fuzzBinary) linkerDeps(ctx DepsContext, deps Deps) Deps {
}
func (fuzz *fuzzBinary) linkerFlags(ctx ModuleContext, flags Flags) Flags {
+ subdir := "lib"
+ if ctx.inVendor() {
+ subdir = "lib/vendor"
+ }
+
flags = fuzz.binaryDecorator.linkerFlags(ctx, flags)
// RunPaths on devices isn't instantiated by the base linker. `../lib` for
// installed fuzz targets (both host and device), and `./lib` for fuzz
// target packages.
- flags.Local.LdFlags = append(flags.Local.LdFlags, `-Wl,-rpath,\$$ORIGIN/lib`)
+ flags.Local.LdFlags = append(flags.Local.LdFlags, `-Wl,-rpath,\$$ORIGIN/`+subdir)
// When running on device, fuzz targets with vendor: true set will be in
// fuzzer_name/vendor/fuzzer_name (note the extra 'vendor' and thus need to
// link with libraries in ../../lib/. Non-vendor binaries only need to look
// one level up, in ../lib/.
if ctx.inVendor() {
- flags.Local.LdFlags = append(flags.Local.LdFlags, `-Wl,-rpath,\$$ORIGIN/../../lib`)
+ flags.Local.LdFlags = append(flags.Local.LdFlags, `-Wl,-rpath,\$$ORIGIN/../../`+subdir)
} else {
- flags.Local.LdFlags = append(flags.Local.LdFlags, `-Wl,-rpath,\$$ORIGIN/../lib`)
+ flags.Local.LdFlags = append(flags.Local.LdFlags, `-Wl,-rpath,\$$ORIGIN/../`+subdir)
}
return flags
}
+func (fuzz *fuzzBinary) moduleInfoJSON(ctx ModuleContext, moduleInfoJSON *android.ModuleInfoJSON) {
+ fuzz.binaryDecorator.moduleInfoJSON(ctx, moduleInfoJSON)
+ moduleInfoJSON.Class = []string{"EXECUTABLES"}
+}
+
// IsValidSharedDependency takes a module and determines if it is a unique shared library
// that should be installed in the fuzz target output directories. This function
// returns true, unless:
@@ -213,70 +226,91 @@ func IsValidSharedDependency(dependency android.Module) bool {
}
func SharedLibraryInstallLocation(
- libraryPath android.Path, isHost bool, fuzzDir string, archString string) string {
+ libraryBase string, isHost bool, isVendor bool, fuzzDir string, archString string) string {
installLocation := "$(PRODUCT_OUT)/data"
if isHost {
installLocation = "$(HOST_OUT)"
}
+ subdir := "lib"
+ if isVendor {
+ subdir = "lib/vendor"
+ }
installLocation = filepath.Join(
- installLocation, fuzzDir, archString, "lib", libraryPath.Base())
+ installLocation, fuzzDir, archString, subdir, libraryBase)
return installLocation
}
// Get the device-only shared library symbols install directory.
-func SharedLibrarySymbolsInstallLocation(libraryPath android.Path, fuzzDir string, archString string) string {
- return filepath.Join("$(PRODUCT_OUT)/symbols/data/", fuzzDir, archString, "/lib/", libraryPath.Base())
+func SharedLibrarySymbolsInstallLocation(libraryBase string, isVendor bool, fuzzDir string, archString string) string {
+ subdir := "lib"
+ if isVendor {
+ subdir = "lib/vendor"
+ }
+ return filepath.Join("$(PRODUCT_OUT)/symbols/data/", fuzzDir, archString, subdir, libraryBase)
}
func (fuzzBin *fuzzBinary) install(ctx ModuleContext, file android.Path) {
- installBase := "fuzz"
-
- fuzzBin.binaryDecorator.baseInstaller.dir = filepath.Join(
- installBase, ctx.Target().Arch.ArchType.String(), ctx.ModuleName())
- fuzzBin.binaryDecorator.baseInstaller.dir64 = filepath.Join(
- installBase, ctx.Target().Arch.ArchType.String(), ctx.ModuleName())
- fuzzBin.binaryDecorator.baseInstaller.install(ctx, file)
-
fuzzBin.fuzzPackagedModule = PackageFuzzModule(ctx, fuzzBin.fuzzPackagedModule, pctx)
+ installBase := "fuzz"
+
// Grab the list of required shared libraries.
fuzzBin.sharedLibraries, _ = CollectAllSharedDependencies(ctx)
- for _, lib := range fuzzBin.sharedLibraries {
+ // TODO: does not mirror Android linkernamespaces
+ // the logic here has special cases for vendor, but it would need more work to
+ // work in arbitrary partitions, so just surface errors early for a few cases
+ //
+ // Even without these, there are certain situations across linkernamespaces
+ // that this won't support. For instance, you might have:
+ //
+ // my_fuzzer (vendor) -> libbinder_ndk (core) -> libbinder (vendor)
+ //
+ // This dependency chain wouldn't be possible to express in the current
+ // logic because all the deps currently match the variant of the source
+ // module.
+
+ for _, ruleBuilderInstall := range fuzzBin.sharedLibraries {
+ install := ruleBuilderInstall.To
fuzzBin.installedSharedDeps = append(fuzzBin.installedSharedDeps,
SharedLibraryInstallLocation(
- lib, ctx.Host(), installBase, ctx.Arch().ArchType.String()))
+ install, ctx.Host(), ctx.inVendor(), installBase, ctx.Arch().ArchType.String()))
// Also add the dependency on the shared library symbols dir.
if !ctx.Host() {
fuzzBin.installedSharedDeps = append(fuzzBin.installedSharedDeps,
- SharedLibrarySymbolsInstallLocation(lib, installBase, ctx.Arch().ArchType.String()))
+ SharedLibrarySymbolsInstallLocation(install, ctx.inVendor(), installBase, ctx.Arch().ArchType.String()))
}
}
+
+ for _, d := range fuzzBin.fuzzPackagedModule.Corpus {
+ fuzzBin.data = append(fuzzBin.data, android.DataPath{SrcPath: d, RelativeInstallPath: "corpus", WithoutRel: true})
+ }
+
+ for _, d := range fuzzBin.fuzzPackagedModule.Data {
+ fuzzBin.data = append(fuzzBin.data, android.DataPath{SrcPath: d, RelativeInstallPath: "data"})
+ }
+
+ if d := fuzzBin.fuzzPackagedModule.Dictionary; d != nil {
+ fuzzBin.data = append(fuzzBin.data, android.DataPath{SrcPath: d, WithoutRel: true})
+ }
+
+ if d := fuzzBin.fuzzPackagedModule.Config; d != nil {
+ fuzzBin.data = append(fuzzBin.data, android.DataPath{SrcPath: d, WithoutRel: true})
+ }
+
+ fuzzBin.binaryDecorator.baseInstaller.dir = filepath.Join(
+ installBase, ctx.Target().Arch.ArchType.String(), ctx.ModuleName())
+ fuzzBin.binaryDecorator.baseInstaller.dir64 = filepath.Join(
+ installBase, ctx.Target().Arch.ArchType.String(), ctx.ModuleName())
+ fuzzBin.binaryDecorator.baseInstaller.installTestData(ctx, fuzzBin.data)
+ fuzzBin.binaryDecorator.baseInstaller.install(ctx, file)
}
func PackageFuzzModule(ctx android.ModuleContext, fuzzPackagedModule fuzz.FuzzPackagedModule, pctx android.PackageContext) fuzz.FuzzPackagedModule {
fuzzPackagedModule.Corpus = android.PathsForModuleSrc(ctx, fuzzPackagedModule.FuzzProperties.Corpus)
- builder := android.NewRuleBuilder(pctx, ctx)
- intermediateDir := android.PathForModuleOut(ctx, "corpus")
- for _, entry := range fuzzPackagedModule.Corpus {
- builder.Command().Text("cp").
- Input(entry).
- Output(intermediateDir.Join(ctx, entry.Base()))
- }
- builder.Build("copy_corpus", "copy corpus")
- fuzzPackagedModule.CorpusIntermediateDir = intermediateDir
fuzzPackagedModule.Data = android.PathsForModuleSrc(ctx, fuzzPackagedModule.FuzzProperties.Data)
- builder = android.NewRuleBuilder(pctx, ctx)
- intermediateDir = android.PathForModuleOut(ctx, "data")
- for _, entry := range fuzzPackagedModule.Data {
- builder.Command().Text("cp").
- Input(entry).
- Output(intermediateDir.Join(ctx, entry.Rel()))
- }
- builder.Build("copy_data", "copy data")
- fuzzPackagedModule.DataIntermediateDir = intermediateDir
if fuzzPackagedModule.FuzzProperties.Dictionary != nil {
fuzzPackagedModule.Dictionary = android.PathForModuleSrc(ctx, *fuzzPackagedModule.FuzzProperties.Dictionary)
@@ -296,7 +330,7 @@ func PackageFuzzModule(ctx android.ModuleContext, fuzzPackagedModule fuzz.FuzzPa
}
func NewFuzzer(hod android.HostOrDeviceSupported) *Module {
- module, binary := newBinary(hod, false)
+ module, binary := newBinary(hod)
baseInstallerPath := "fuzz"
binary.baseInstaller = NewBaseInstaller(baseInstallerPath, baseInstallerPath, InstallInData)
@@ -354,6 +388,7 @@ type ccRustFuzzPackager struct {
fuzzPackagingArchModules string
fuzzTargetSharedDepsInstallPairs string
allFuzzTargetsName string
+ onlyIncludePresubmits bool
}
func fuzzPackagingFactory() android.Singleton {
@@ -362,6 +397,18 @@ func fuzzPackagingFactory() android.Singleton {
fuzzPackagingArchModules: "SOONG_FUZZ_PACKAGING_ARCH_MODULES",
fuzzTargetSharedDepsInstallPairs: "FUZZ_TARGET_SHARED_DEPS_INSTALL_PAIRS",
allFuzzTargetsName: "ALL_FUZZ_TARGETS",
+ onlyIncludePresubmits: false,
+ }
+ return fuzzPackager
+}
+
+func fuzzPackagingFactoryPresubmit() android.Singleton {
+
+ fuzzPackager := &ccRustFuzzPackager{
+ fuzzPackagingArchModules: "SOONG_PRESUBMIT_FUZZ_PACKAGING_ARCH_MODULES",
+ fuzzTargetSharedDepsInstallPairs: "PRESUBMIT_FUZZ_TARGET_SHARED_DEPS_INSTALL_PAIRS",
+ allFuzzTargetsName: "ALL_PRESUBMIT_FUZZ_TARGETS",
+ onlyIncludePresubmits: true,
}
return fuzzPackager
}
@@ -385,21 +432,29 @@ func (s *ccRustFuzzPackager) GenerateBuildActions(ctx android.SingletonContext)
if !ok || ccModule.PreventInstall() {
return
}
-
// Discard non-fuzz targets.
- if ok := fuzz.IsValid(ccModule.FuzzModuleStruct()); !ok {
+ if ok := fuzz.IsValid(ctx, ccModule.FuzzModuleStruct()); !ok {
return
}
sharedLibsInstallDirPrefix := "lib"
+ if ccModule.InVendor() {
+ sharedLibsInstallDirPrefix = "lib/vendor"
+ }
+
if !ccModule.IsFuzzModule() {
return
}
hostOrTargetString := "target"
- if ccModule.Host() {
+ if ccModule.Target().HostCross {
+ hostOrTargetString = "host_cross"
+ } else if ccModule.Host() {
hostOrTargetString = "host"
}
+ if s.onlyIncludePresubmits == true {
+ hostOrTargetString = "presubmit-" + hostOrTargetString
+ }
fpm := fuzz.FuzzPackagedModule{}
if ok {
@@ -422,8 +477,16 @@ func (s *ccRustFuzzPackager) GenerateBuildActions(ctx android.SingletonContext)
files = append(files, GetSharedLibsToZip(ccModule.FuzzSharedLibraries(), ccModule, &s.FuzzPackager, archString, sharedLibsInstallDirPrefix, &sharedLibraryInstalled)...)
// The executable.
- files = append(files, fuzz.FileToZip{android.OutputFileForModule(ctx, ccModule, "unstripped"), ""})
+ files = append(files, fuzz.FileToZip{SourceFilePath: android.OutputFileForModule(ctx, ccModule, "unstripped")})
+ if s.onlyIncludePresubmits == true {
+ if fpm.FuzzProperties.Fuzz_config == nil {
+ return
+ }
+ if !BoolDefault(fpm.FuzzProperties.Fuzz_config.Use_for_presubmit, false) {
+ return
+ }
+ }
archDirs[archOs], ok = s.BuildZipFile(ctx, module, fpm, files, builder, archDir, archString, hostOrTargetString, archOs, archDirs)
if !ok {
return
@@ -453,19 +516,25 @@ func (s *ccRustFuzzPackager) MakeVars(ctx android.MakeVarsContext) {
// GetSharedLibsToZip finds and marks all the transiently-dependent shared libraries for
// packaging.
-func GetSharedLibsToZip(sharedLibraries android.Paths, module LinkableInterface, s *fuzz.FuzzPackager, archString string, destinationPathPrefix string, sharedLibraryInstalled *map[string]bool) []fuzz.FileToZip {
+func GetSharedLibsToZip(sharedLibraries android.RuleBuilderInstalls, module LinkableInterface, s *fuzz.FuzzPackager, archString string, destinationPathPrefix string, sharedLibraryInstalled *map[string]bool) []fuzz.FileToZip {
var files []fuzz.FileToZip
fuzzDir := "fuzz"
- for _, library := range sharedLibraries {
- files = append(files, fuzz.FileToZip{library, destinationPathPrefix})
+ for _, ruleBuilderInstall := range sharedLibraries {
+ library := ruleBuilderInstall.From
+ install := ruleBuilderInstall.To
+ files = append(files, fuzz.FileToZip{
+ SourceFilePath: library,
+ DestinationPathPrefix: destinationPathPrefix,
+ DestinationPath: install,
+ })
// For each architecture-specific shared library dependency, we need to
// install it to the output directory. Setup the install destination here,
// which will be used by $(copy-many-files) in the Make backend.
installDestination := SharedLibraryInstallLocation(
- library, module.Host(), fuzzDir, archString)
+ install, module.Host(), module.InVendor(), fuzzDir, archString)
if (*sharedLibraryInstalled)[installDestination] {
continue
}
@@ -483,7 +552,7 @@ func GetSharedLibsToZip(sharedLibraries android.Paths, module LinkableInterface,
// we want symbolization tools (like `stack`) to be able to find the symbols
// in $ANDROID_PRODUCT_OUT/symbols automagically.
if !module.Host() {
- symbolsInstallDestination := SharedLibrarySymbolsInstallLocation(library, fuzzDir, archString)
+ symbolsInstallDestination := SharedLibrarySymbolsInstallLocation(install, module.InVendor(), fuzzDir, archString)
symbolsInstallDestination = strings.ReplaceAll(symbolsInstallDestination, "$", "$$")
s.SharedLibInstallStrings = append(s.SharedLibInstallStrings,
library.String()+":"+symbolsInstallDestination)
@@ -497,12 +566,12 @@ func GetSharedLibsToZip(sharedLibraries android.Paths, module LinkableInterface,
// VisitDirectDeps is used first to avoid incorrectly using the core libraries (sanitizer
// runtimes, libc, libdl, etc.) from a dependency. This may cause issues when dependencies
// have explicit sanitizer tags, as we may get a dependency on an unsanitized libc, etc.
-func CollectAllSharedDependencies(ctx android.ModuleContext) (android.Paths, []android.Module) {
+func CollectAllSharedDependencies(ctx android.ModuleContext) (android.RuleBuilderInstalls, []android.Module) {
seen := make(map[string]bool)
recursed := make(map[string]bool)
deps := []android.Module{}
- var sharedLibraries android.Paths
+ var sharedLibraries android.RuleBuilderInstalls
// Enumerate the first level of dependencies, as we discard all non-library
// modules in the BFS loop below.
@@ -510,22 +579,47 @@ func CollectAllSharedDependencies(ctx android.ModuleContext) (android.Paths, []a
if !IsValidSharedDependency(dep) {
return
}
+ sharedLibraryInfo, hasSharedLibraryInfo := android.OtherModuleProvider(ctx, dep, SharedLibraryInfoProvider)
+ if !hasSharedLibraryInfo {
+ return
+ }
if seen[ctx.OtherModuleName(dep)] {
return
}
seen[ctx.OtherModuleName(dep)] = true
deps = append(deps, dep)
- sharedLibraries = append(sharedLibraries, android.OutputFileForModule(ctx, dep, "unstripped"))
+
+ installDestination := sharedLibraryInfo.SharedLibrary.Base()
+ ruleBuilderInstall := android.RuleBuilderInstall{android.OutputFileForModule(ctx, dep, "unstripped"), installDestination}
+ sharedLibraries = append(sharedLibraries, ruleBuilderInstall)
})
ctx.WalkDeps(func(child, parent android.Module) bool {
+
+ // If this is a Rust module which is not rust_ffi_shared, we still want to bundle any transitive
+ // shared dependencies (even for rust_ffi_rlib or rust_ffi_static)
+ if rustmod, ok := child.(LinkableInterface); ok && rustmod.RustLibraryInterface() && !rustmod.Shared() {
+ if recursed[ctx.OtherModuleName(child)] {
+ return false
+ }
+ recursed[ctx.OtherModuleName(child)] = true
+ return true
+ }
+
if !IsValidSharedDependency(child) {
return false
}
+ sharedLibraryInfo, hasSharedLibraryInfo := android.OtherModuleProvider(ctx, child, SharedLibraryInfoProvider)
+ if !hasSharedLibraryInfo {
+ return false
+ }
if !seen[ctx.OtherModuleName(child)] {
seen[ctx.OtherModuleName(child)] = true
deps = append(deps, child)
- sharedLibraries = append(sharedLibraries, android.OutputFileForModule(ctx, child, "unstripped"))
+
+ installDestination := sharedLibraryInfo.SharedLibrary.Base()
+ ruleBuilderInstall := android.RuleBuilderInstall{android.OutputFileForModule(ctx, child, "unstripped"), installDestination}
+ sharedLibraries = append(sharedLibraries, ruleBuilderInstall)
}
if recursed[ctx.OtherModuleName(child)] {
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-11-03 16:03:54 +0000