/*
* Copyright (C) 2017 The Android Open Source Project
*
* 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.
*/
#include "class_loader_context.h"
#include <gtest/gtest.h>
#include "android-base/strings.h"
#include "base/dchecked_vector.h"
#include "base/stl_util.h"
#include "class_linker.h"
#include "common_runtime_test.h"
#include "dex/dex_file.h"
#include "handle_scope-inl.h"
#include "mirror/class.h"
#include "mirror/class_loader.h"
#include "mirror/object-inl.h"
#include "oat_file_assistant.h"
#include "runtime.h"
#include "scoped_thread_state_change-inl.h"
#include "thread.h"
#include "well_known_classes.h"
namespace art {
class ClassLoaderContextTest : public CommonRuntimeTest {
public:
void VerifyContextSize(ClassLoaderContext* context, size_t expected_size) {
ASSERT_TRUE(context != nullptr);
ASSERT_EQ(expected_size, context->class_loader_chain_.size());
}
void VerifyClassLoaderPCL(ClassLoaderContext* context,
size_t index,
const std::string& classpath) {
VerifyClassLoaderInfo(
context, index, ClassLoaderContext::kPathClassLoader, classpath);
}
void VerifyClassLoaderDLC(ClassLoaderContext* context,
size_t index,
const std::string& classpath) {
VerifyClassLoaderInfo(
context, index, ClassLoaderContext::kDelegateLastClassLoader, classpath);
}
void VerifyClassLoaderPCLFromTestDex(ClassLoaderContext* context,
size_t index,
const std::string& test_name) {
VerifyClassLoaderFromTestDex(
context, index, ClassLoaderContext::kPathClassLoader, test_name);
}
void VerifyClassLoaderDLCFromTestDex(ClassLoaderContext* context,
size_t index,
const std::string& test_name) {
VerifyClassLoaderFromTestDex(
context, index, ClassLoaderContext::kDelegateLastClassLoader, test_name);
}
enum class LocationCheck {
kEquals,
kEndsWith
};
enum class BaseLocationCheck {
kEquals,
kEndsWith
};
static bool IsAbsoluteLocation(const std::string& location) {
return !location.empty() && location[0] == '/';
}
void VerifyOpenDexFiles(
ClassLoaderContext* context,
size_t index,
std::vector<std::unique_ptr<const DexFile>>* all_dex_files) {
ASSERT_TRUE(context != nullptr);
ASSERT_TRUE(context->dex_files_open_attempted_);
ASSERT_TRUE(context->dex_files_open_result_);
ClassLoaderContext::ClassLoaderInfo& info = context->class_loader_chain_[index];
ASSERT_EQ(all_dex_files->size(), info.classpath.size());
ASSERT_EQ(all_dex_files->size(), info.opened_dex_files.size());
size_t cur_open_dex_index = 0;
for (size_t k = 0; k < all_dex_files->size(); k++) {
std::unique_ptr<const DexFile>& opened_dex_file =
info.opened_dex_files[cur_open_dex_index++];
std::unique_ptr<const DexFile>& expected_dex_file = (*all_dex_files)[k];
std::string expected_location = expected_dex_file->GetLocation();
const std::string& opened_location = opened_dex_file->GetLocation();
if (!IsAbsoluteLocation(opened_location)) {
// If the opened location is relative (it was open from a relative path without a
// classpath_dir) it might not match the expected location which is absolute in tests).
// So we compare the endings (the checksum will validate it's actually the same file).
ASSERT_EQ(0, expected_location.compare(
expected_location.length() - opened_location.length(),
opened_location.length(),
opened_location));
} else {
ASSERT_EQ(expected_location, opened_location);
}
ASSERT_EQ(expected_dex_file->GetLocationChecksum(), opened_dex_file->GetLocationChecksum());
ASSERT_EQ(info.classpath[k], opened_location);
}
}
std::unique_ptr<ClassLoaderContext> CreateContextForClassLoader(jobject class_loader) {
return ClassLoaderContext::CreateContextForClassLoader(class_loader, nullptr);
}
std::unique_ptr<ClassLoaderContext> ParseContextWithChecksums(const std::string& context_spec) {
std::unique_ptr<ClassLoaderContext> context(new ClassLoaderContext());
if (!context->Parse(context_spec, /*parse_checksums*/ true)) {
return nullptr;
}
return context;
}
void VerifyContextForClassLoader(ClassLoaderContext* context) {
ASSERT_TRUE(context != nullptr);
ASSERT_TRUE(context->dex_files_open_attempted_);
ASSERT_TRUE(context->dex_files_open_result_);
ASSERT_FALSE(context->owns_the_dex_files_);
ASSERT_FALSE(context->special_shared_library_);
}
void VerifyClassLoaderDexFiles(ScopedObjectAccess& soa,
Handle<mirror::ClassLoader> class_loader,
jclass type,
std::vector<const DexFile*>& expected_dex_files)
REQUIRES_SHARED(Locks::mutator_lock_) {
ASSERT_TRUE(class_loader->GetClass() == soa.Decode<mirror::Class>(type));
std::vector<const DexFile*> class_loader_dex_files = GetDexFiles(soa, class_loader);
ASSERT_EQ(expected_dex_files.size(), class_loader_dex_files.size());
for (size_t i = 0; i < expected_dex_files.size(); i++) {
ASSERT_EQ(expected_dex_files[i]->GetLocation(),
class_loader_dex_files[i]->GetLocation());
ASSERT_EQ(expected_dex_files[i]->GetLocationChecksum(),
class_loader_dex_files[i]->GetLocationChecksum());
}
}
void PretendContextOpenedDexFiles(ClassLoaderContext* context) {
context->dex_files_open_attempted_ = true;
context->dex_files_open_result_ = true;
}
private:
void VerifyClassLoaderInfo(ClassLoaderContext* context,
size_t index,
ClassLoaderContext::ClassLoaderType type,
const std::string& classpath) {
ASSERT_TRUE(context != nullptr);
ASSERT_GT(context->class_loader_chain_.size(), index);
ClassLoaderContext::ClassLoaderInfo& info = context->class_loader_chain_[index];
ASSERT_EQ(type, info.type);
std::vector<std::string> expected_classpath;
Split(classpath, ':', &expected_classpath);
ASSERT_EQ(expected_classpath, info.classpath);
}
void VerifyClassLoaderFromTestDex(ClassLoaderContext* context,
size_t index,
ClassLoaderContext::ClassLoaderType type,
const std::string& test_name) {
std::vector<std::unique_ptr<const DexFile>> dex_files = OpenTestDexFiles(test_name.c_str());
VerifyClassLoaderInfo(context, index, type, GetTestDexFileName(test_name.c_str()));
VerifyOpenDexFiles(context, index, &dex_files);
}
};
TEST_F(ClassLoaderContextTest, ParseValidEmptyContext) {
std::unique_ptr<ClassLoaderContext> context = ClassLoaderContext::Create("");
// An empty context should create a single empty PathClassLoader.
VerifyContextSize(context.get(), 1);
VerifyClassLoaderPCL(context.get(), 0, "");
}
TEST_F(ClassLoaderContextTest, ParseValidSharedLibraryContext) {
std::unique_ptr<ClassLoaderContext> context = ClassLoaderContext::Create("&");
// An shared library context should have no class loader in the chain.
VerifyContextSize(context.get(), 0);
}
TEST_F(ClassLoaderContextTest, ParseValidContextPCL) {
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("PCL[a.dex]");
VerifyContextSize(context.get(), 1);
VerifyClassLoaderPCL(context.get(), 0, "a.dex");
}
TEST_F(ClassLoaderContextTest, ParseValidContextDLC) {
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("DLC[a.dex]");
VerifyContextSize(context.get(), 1);
VerifyClassLoaderDLC(context.get(), 0, "a.dex");
}
TEST_F(ClassLoaderContextTest, ParseValidContextChain) {
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("PCL[a.dex:b.dex];DLC[c.dex:d.dex];PCL[e.dex]");
VerifyContextSize(context.get(), 3);
VerifyClassLoaderPCL(context.get(), 0, "a.dex:b.dex");
VerifyClassLoaderDLC(context.get(), 1, "c.dex:d.dex");
VerifyClassLoaderPCL(context.get(), 2, "e.dex");
}
TEST_F(ClassLoaderContextTest, ParseValidEmptyContextDLC) {
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("DLC[]");
VerifyContextSize(context.get(), 1);
VerifyClassLoaderDLC(context.get(), 0, "");
}
TEST_F(ClassLoaderContextTest, ParseValidContextSpecialSymbol) {
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create(OatFile::kSpecialSharedLibrary);
VerifyContextSize(context.get(), 0);
}
TEST_F(ClassLoaderContextTest, ParseInvalidValidContexts) {
ASSERT_TRUE(nullptr == ClassLoaderContext::Create("ABC[a.dex]"));
ASSERT_TRUE(nullptr == ClassLoaderContext::Create("PCL"));
ASSERT_TRUE(nullptr == ClassLoaderContext::Create("PCL[a.dex"));
ASSERT_TRUE(nullptr == ClassLoaderContext::Create("PCLa.dex]"));
ASSERT_TRUE(nullptr == ClassLoaderContext::Create("PCL{a.dex}"));
ASSERT_TRUE(nullptr == ClassLoaderContext::Create("PCL[a.dex];DLC[b.dex"));
}
TEST_F(ClassLoaderContextTest, OpenInvalidDexFiles) {
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("PCL[does_not_exist.dex]");
VerifyContextSize(context.get(), 1);
ASSERT_FALSE(context->OpenDexFiles(InstructionSet::kArm, "."));
}
TEST_F(ClassLoaderContextTest, OpenValidDexFiles) {
std::string multidex_name = GetTestDexFileName("MultiDex");
std::string myclass_dex_name = GetTestDexFileName("MyClass");
std::string dex_name = GetTestDexFileName("Main");
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create(
"PCL[" + multidex_name + ":" + myclass_dex_name + "];" +
"DLC[" + dex_name + "]");
ASSERT_TRUE(context->OpenDexFiles(InstructionSet::kArm, /*classpath_dir*/ ""));
VerifyContextSize(context.get(), 2);
std::vector<std::unique_ptr<const DexFile>> all_dex_files0 = OpenTestDexFiles("MultiDex");
std::vector<std::unique_ptr<const DexFile>> myclass_dex_files = OpenTestDexFiles("MyClass");
for (size_t i = 0; i < myclass_dex_files.size(); i++) {
all_dex_files0.emplace_back(myclass_dex_files[i].release());
}
VerifyOpenDexFiles(context.get(), 0, &all_dex_files0);
std::vector<std::unique_ptr<const DexFile>> all_dex_files1 = OpenTestDexFiles("Main");
VerifyOpenDexFiles(context.get(), 1, &all_dex_files1);
}
// Creates a relative path from cwd to 'in'. Returns false if it cannot be done.
// TODO We should somehow support this in all situations. b/72042237.
static bool CreateRelativeString(const std::string& in, const char* cwd, std::string* out) {
int cwd_len = strlen(cwd);
if (!android::base::StartsWith(in, cwd) || (cwd_len < 1)) {
return false;
}
bool contains_trailing_slash = (cwd[cwd_len - 1] == '/');
int start_position = cwd_len + (contains_trailing_slash ? 0 : 1);
*out = in.substr(start_position);
return true;
}
TEST_F(ClassLoaderContextTest, OpenValidDexFilesRelative) {
char cwd_buf[4096];
if (getcwd(cwd_buf, arraysize(cwd_buf)) == nullptr) {
PLOG(FATAL) << "Could not get working directory";
}
std::string multidex_name;
std::string myclass_dex_name;
std::string dex_name;
if (!CreateRelativeString(GetTestDexFileName("MultiDex"), cwd_buf, &multidex_name) ||
!CreateRelativeString(GetTestDexFileName("MyClass"), cwd_buf, &myclass_dex_name) ||
!CreateRelativeString(GetTestDexFileName("Main"), cwd_buf, &dex_name)) {
LOG(ERROR) << "Test OpenValidDexFilesRelative cannot be run because target dex files have no "
<< "relative path.";
SUCCEED();
return;
}
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create(
"PCL[" + multidex_name + ":" + myclass_dex_name + "];" +
"DLC[" + dex_name + "]");
ASSERT_TRUE(context->OpenDexFiles(InstructionSet::kArm, /*classpath_dir*/ ""));
std::vector<std::unique_ptr<const DexFile>> all_dex_files0 = OpenTestDexFiles("MultiDex");
std::vector<std::unique_ptr<const DexFile>> myclass_dex_files = OpenTestDexFiles("MyClass");
for (size_t i = 0; i < myclass_dex_files.size(); i++) {
all_dex_files0.emplace_back(myclass_dex_files[i].release());
}
VerifyOpenDexFiles(context.get(), 0, &all_dex_files0);
std::vector<std::unique_ptr<const DexFile>> all_dex_files1 = OpenTestDexFiles("Main");
VerifyOpenDexFiles(context.get(), 1, &all_dex_files1);
}
TEST_F(ClassLoaderContextTest, OpenValidDexFilesClasspathDir) {
char cwd_buf[4096];
if (getcwd(cwd_buf, arraysize(cwd_buf)) == nullptr) {
PLOG(FATAL) << "Could not get working directory";
}
std::string multidex_name;
std::string myclass_dex_name;
std::string dex_name;
if (!CreateRelativeString(GetTestDexFileName("MultiDex"), cwd_buf, &multidex_name) ||
!CreateRelativeString(GetTestDexFileName("MyClass"), cwd_buf, &myclass_dex_name) ||
!CreateRelativeString(GetTestDexFileName("Main"), cwd_buf, &dex_name)) {
LOG(ERROR) << "Test OpenValidDexFilesClasspathDir cannot be run because target dex files have "
<< "no relative path.";
SUCCEED();
return;
}
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create(
"PCL[" + multidex_name + ":" + myclass_dex_name + "];" +
"DLC[" + dex_name + "]");
ASSERT_TRUE(context->OpenDexFiles(InstructionSet::kArm, cwd_buf));
VerifyContextSize(context.get(), 2);
std::vector<std::unique_ptr<const DexFile>> all_dex_files0 = OpenTestDexFiles("MultiDex");
std::vector<std::unique_ptr<const DexFile>> myclass_dex_files = OpenTestDexFiles("MyClass");
for (size_t i = 0; i < myclass_dex_files.size(); i++) {
all_dex_files0.emplace_back(myclass_dex_files[i].release());
}
VerifyOpenDexFiles(context.get(), 0, &all_dex_files0);
std::vector<std::unique_ptr<const DexFile>> all_dex_files1 = OpenTestDexFiles("Main");
VerifyOpenDexFiles(context.get(), 1, &all_dex_files1);
}
TEST_F(ClassLoaderContextTest, OpenInvalidDexFilesMix) {
std::string dex_name = GetTestDexFileName("Main");
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("PCL[does_not_exist.dex];DLC[" + dex_name + "]");
ASSERT_FALSE(context->OpenDexFiles(InstructionSet::kArm, ""));
}
TEST_F(ClassLoaderContextTest, CreateClassLoader) {
std::string dex_name = GetTestDexFileName("Main");
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("PCL[" + dex_name + "]");
ASSERT_TRUE(context->OpenDexFiles(InstructionSet::kArm, ""));
std::vector<std::unique_ptr<const DexFile>> classpath_dex = OpenTestDexFiles("Main");
std::vector<std::unique_ptr<const DexFile>> compilation_sources = OpenTestDexFiles("MultiDex");
std::vector<const DexFile*> compilation_sources_raw =
MakeNonOwningPointerVector(compilation_sources);
jobject jclass_loader = context->CreateClassLoader(compilation_sources_raw);
ASSERT_TRUE(jclass_loader != nullptr);
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<1> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader = hs.NewHandle(
soa.Decode<mirror::ClassLoader>(jclass_loader));
ASSERT_TRUE(class_loader->GetClass() ==
soa.Decode<mirror::Class>(WellKnownClasses::dalvik_system_PathClassLoader));
ASSERT_TRUE(class_loader->GetParent()->GetClass() ==
soa.Decode<mirror::Class>(WellKnownClasses::java_lang_BootClassLoader));
// For the first class loader the class path dex files must come first and then the
// compilation sources.
std::vector<const DexFile*> expected_classpath = MakeNonOwningPointerVector(classpath_dex);
for (auto& dex : compilation_sources_raw) {
expected_classpath.push_back(dex);
}
VerifyClassLoaderDexFiles(soa,
class_loader,
WellKnownClasses::dalvik_system_PathClassLoader,
expected_classpath);
}
TEST_F(ClassLoaderContextTest, CreateClassLoaderWithEmptyContext) {
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("");
ASSERT_TRUE(context->OpenDexFiles(InstructionSet::kArm, ""));
std::vector<std::unique_ptr<const DexFile>> compilation_sources = OpenTestDexFiles("MultiDex");
std::vector<const DexFile*> compilation_sources_raw =
MakeNonOwningPointerVector(compilation_sources);
jobject jclass_loader = context->CreateClassLoader(compilation_sources_raw);
ASSERT_TRUE(jclass_loader != nullptr);
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<1> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader = hs.NewHandle(
soa.Decode<mirror::ClassLoader>(jclass_loader));
// An empty context should create a single PathClassLoader with only the compilation sources.
VerifyClassLoaderDexFiles(soa,
class_loader,
WellKnownClasses::dalvik_system_PathClassLoader,
compilation_sources_raw);
ASSERT_TRUE(class_loader->GetParent()->GetClass() ==
soa.Decode<mirror::Class>(WellKnownClasses::java_lang_BootClassLoader));
}
TEST_F(ClassLoaderContextTest, CreateClassLoaderWithSharedLibraryContext) {
std::unique_ptr<ClassLoaderContext> context = ClassLoaderContext::Create("&");
ASSERT_TRUE(context->OpenDexFiles(InstructionSet::kArm, ""));
std::vector<std::unique_ptr<const DexFile>> compilation_sources = OpenTestDexFiles("MultiDex");
std::vector<const DexFile*> compilation_sources_raw =
MakeNonOwningPointerVector(compilation_sources);
jobject jclass_loader = context->CreateClassLoader(compilation_sources_raw);
ASSERT_TRUE(jclass_loader != nullptr);
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<1> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader = hs.NewHandle(
soa.Decode<mirror::ClassLoader>(jclass_loader));
// A shared library context should create a single PathClassLoader with only the compilation
// sources.
VerifyClassLoaderDexFiles(soa,
class_loader,
WellKnownClasses::dalvik_system_PathClassLoader,
compilation_sources_raw);
ASSERT_TRUE(class_loader->GetParent()->GetClass() ==
soa.Decode<mirror::Class>(WellKnownClasses::java_lang_BootClassLoader));
}
TEST_F(ClassLoaderContextTest, CreateClassLoaderWithComplexChain) {
// Setup the context.
std::vector<std::unique_ptr<const DexFile>> classpath_dex_a = OpenTestDexFiles("ForClassLoaderA");
std::vector<std::unique_ptr<const DexFile>> classpath_dex_b = OpenTestDexFiles("ForClassLoaderB");
std::vector<std::unique_ptr<const DexFile>> classpath_dex_c = OpenTestDexFiles("ForClassLoaderC");
std::vector<std::unique_ptr<const DexFile>> classpath_dex_d = OpenTestDexFiles("ForClassLoaderD");
std::string context_spec =
"PCL[" + CreateClassPath(classpath_dex_a) + ":" + CreateClassPath(classpath_dex_b) + "];" +
"DLC[" + CreateClassPath(classpath_dex_c) + "];" +
"PCL[" + CreateClassPath(classpath_dex_d) + "]";
std::unique_ptr<ClassLoaderContext> context = ClassLoaderContext::Create(context_spec);
ASSERT_TRUE(context->OpenDexFiles(InstructionSet::kArm, ""));
// Setup the compilation sources.
std::vector<std::unique_ptr<const DexFile>> compilation_sources = OpenTestDexFiles("MultiDex");
std::vector<const DexFile*> compilation_sources_raw =
MakeNonOwningPointerVector(compilation_sources);
// Create the class loader.
jobject jclass_loader = context->CreateClassLoader(compilation_sources_raw);
ASSERT_TRUE(jclass_loader != nullptr);
// Verify the class loader.
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<3> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader_1 = hs.NewHandle(
soa.Decode<mirror::ClassLoader>(jclass_loader));
// Verify the first class loader
// For the first class loader the class path dex files must come first and then the
// compilation sources.
std::vector<const DexFile*> class_loader_1_dex_files =
MakeNonOwningPointerVector(classpath_dex_a);
for (auto& dex : classpath_dex_b) {
class_loader_1_dex_files.push_back(dex.get());
}
for (auto& dex : compilation_sources_raw) {
class_loader_1_dex_files.push_back(dex);
}
VerifyClassLoaderDexFiles(soa,
class_loader_1,
WellKnownClasses::dalvik_system_PathClassLoader,
class_loader_1_dex_files);
// Verify the second class loader
Handle<mirror::ClassLoader> class_loader_2 = hs.NewHandle(class_loader_1->GetParent());
std::vector<const DexFile*> class_loader_2_dex_files =
MakeNonOwningPointerVector(classpath_dex_c);
VerifyClassLoaderDexFiles(soa,
class_loader_2,
WellKnownClasses::dalvik_system_DelegateLastClassLoader,
class_loader_2_dex_files);
// Verify the third class loader
Handle<mirror::ClassLoader> class_loader_3 = hs.NewHandle(class_loader_2->GetParent());
std::vector<const DexFile*> class_loader_3_dex_files =
MakeNonOwningPointerVector(classpath_dex_d);
VerifyClassLoaderDexFiles(soa,
class_loader_3,
WellKnownClasses::dalvik_system_PathClassLoader,
class_loader_3_dex_files);
// The last class loader should have the BootClassLoader as a parent.
ASSERT_TRUE(class_loader_3->GetParent()->GetClass() ==
soa.Decode<mirror::Class>(WellKnownClasses::java_lang_BootClassLoader));
}
TEST_F(ClassLoaderContextTest, RemoveSourceLocations) {
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("PCL[a.dex]");
dchecked_vector<std::string> classpath_dex;
classpath_dex.push_back("a.dex");
dchecked_vector<std::string> compilation_sources;
compilation_sources.push_back("src.dex");
// Nothing should be removed.
ASSERT_FALSE(context->RemoveLocationsFromClassPaths(compilation_sources));
VerifyClassLoaderPCL(context.get(), 0, "a.dex");
// Classes should be removed.
ASSERT_TRUE(context->RemoveLocationsFromClassPaths(classpath_dex));
VerifyClassLoaderPCL(context.get(), 0, "");
}
TEST_F(ClassLoaderContextTest, EncodeInOatFile) {
std::string dex1_name = GetTestDexFileName("Main");
std::string dex2_name = GetTestDexFileName("MyClass");
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("PCL[" + dex1_name + ":" + dex2_name + "]");
ASSERT_TRUE(context->OpenDexFiles(InstructionSet::kArm, ""));
std::vector<std::unique_ptr<const DexFile>> dex1 = OpenTestDexFiles("Main");
std::vector<std::unique_ptr<const DexFile>> dex2 = OpenTestDexFiles("MyClass");
std::string encoding = context->EncodeContextForOatFile("");
std::string expected_encoding = "PCL[" + CreateClassPathWithChecksums(dex1) + ":" +
CreateClassPathWithChecksums(dex2) + "]";
ASSERT_EQ(expected_encoding, context->EncodeContextForOatFile(""));
}
TEST_F(ClassLoaderContextTest, EncodeForDex2oat) {
std::string dex1_name = GetTestDexFileName("Main");
std::string dex2_name = GetTestDexFileName("MultiDex");
std::unique_ptr<ClassLoaderContext> context =
ClassLoaderContext::Create("PCL[" + dex1_name + ":" + dex2_name + "]");
ASSERT_TRUE(context->OpenDexFiles(InstructionSet::kArm, ""));
std::vector<std::unique_ptr<const DexFile>> dex1 = OpenTestDexFiles("Main");
std::vector<std::unique_ptr<const DexFile>> dex2 = OpenTestDexFiles("MultiDex");
std::string encoding = context->EncodeContextForDex2oat("");
std::string expected_encoding = "PCL[" + dex1_name + ":" + dex2_name + "]";
ASSERT_EQ(expected_encoding, context->EncodeContextForDex2oat(""));
}
// TODO(calin) add a test which creates the context for a class loader together with dex_elements.
TEST_F(ClassLoaderContextTest, CreateContextForClassLoader) {
// The chain is
// ClassLoaderA (PathClassLoader)
// ^
// |
// ClassLoaderB (DelegateLastClassLoader)
// ^
// |
// ClassLoaderC (PathClassLoader)
// ^
// |
// ClassLoaderD (DelegateLastClassLoader)
jobject class_loader_a = LoadDexInPathClassLoader("ForClassLoaderA", nullptr);
jobject class_loader_b = LoadDexInDelegateLastClassLoader("ForClassLoaderB", class_loader_a);
jobject class_loader_c = LoadDexInPathClassLoader("ForClassLoaderC", class_loader_b);
jobject class_loader_d = LoadDexInDelegateLastClassLoader("ForClassLoaderD", class_loader_c);
std::unique_ptr<ClassLoaderContext> context = CreateContextForClassLoader(class_loader_d);
VerifyContextForClassLoader(context.get());
VerifyContextSize(context.get(), 4);
VerifyClassLoaderDLCFromTestDex(context.get(), 0, "ForClassLoaderD");
VerifyClassLoaderPCLFromTestDex(context.get(), 1, "ForClassLoaderC");
VerifyClassLoaderDLCFromTestDex(context.get(), 2, "ForClassLoaderB");
VerifyClassLoaderPCLFromTestDex(context.get(), 3, "ForClassLoaderA");
}
TEST_F(ClassLoaderContextTest, VerifyClassLoaderContextMatch) {
std::string context_spec = "PCL[a.dex*123:b.dex*456];DLC[c.dex*890]";
std::unique_ptr<ClassLoaderContext> context = ParseContextWithChecksums(context_spec);
// Pretend that we successfully open the dex files to pass the DCHECKS.
// (as it's much easier to test all the corner cases without relying on actual dex files).
PretendContextOpenedDexFiles(context.get());
VerifyContextSize(context.get(), 2);
VerifyClassLoaderPCL(context.get(), 0, "a.dex:b.dex");
VerifyClassLoaderDLC(context.get(), 1, "c.dex");
ASSERT_TRUE(context->VerifyClassLoaderContextMatch(context_spec));
std::string wrong_class_loader_type = "PCL[a.dex*123:b.dex*456];PCL[c.dex*890]";
ASSERT_FALSE(context->VerifyClassLoaderContextMatch(wrong_class_loader_type));
std::string wrong_class_loader_order = "DLC[c.dex*890];PCL[a.dex*123:b.dex*456]";
ASSERT_FALSE(context->VerifyClassLoaderContextMatch(wrong_class_loader_order));
std::string wrong_classpath_order = "PCL[b.dex*456:a.dex*123];DLC[c.dex*890]";
ASSERT_FALSE(context->VerifyClassLoaderContextMatch(wrong_classpath_order));
std::string wrong_checksum = "PCL[a.dex*999:b.dex*456];DLC[c.dex*890]";
ASSERT_FALSE(context->VerifyClassLoaderContextMatch(wrong_checksum));
std::string wrong_extra_class_loader = "PCL[a.dex*123:b.dex*456];DLC[c.dex*890];PCL[d.dex*321]";
ASSERT_FALSE(context->VerifyClassLoaderContextMatch(wrong_extra_class_loader));
std::string wrong_extra_classpath = "PCL[a.dex*123:b.dex*456];DLC[c.dex*890:d.dex*321]";
ASSERT_FALSE(context->VerifyClassLoaderContextMatch(wrong_extra_classpath));
std::string wrong_spec = "PCL[a.dex*999:b.dex*456];DLC[";
ASSERT_FALSE(context->VerifyClassLoaderContextMatch(wrong_spec));
}
TEST_F(ClassLoaderContextTest, VerifyClassLoaderContextMatchAfterEncoding) {
jobject class_loader_a = LoadDexInPathClassLoader("ForClassLoaderA", nullptr);
jobject class_loader_b = LoadDexInDelegateLastClassLoader("ForClassLoaderB", class_loader_a);
jobject class_loader_c = LoadDexInPathClassLoader("ForClassLoaderC", class_loader_b);
jobject class_loader_d = LoadDexInDelegateLastClassLoader("ForClassLoaderD", class_loader_c);
std::unique_ptr<ClassLoaderContext> context = CreateContextForClassLoader(class_loader_d);
std::string context_with_no_base_dir = context->EncodeContextForOatFile("");
ASSERT_TRUE(context->VerifyClassLoaderContextMatch(context_with_no_base_dir));
std::string dex_location = GetTestDexFileName("ForClassLoaderA");
size_t pos = dex_location.rfind('/');
ASSERT_NE(std::string::npos, pos);
std::string parent = dex_location.substr(0, pos);
std::string context_with_base_dir = context->EncodeContextForOatFile(parent);
ASSERT_NE(context_with_base_dir, context_with_no_base_dir);
ASSERT_TRUE(context->VerifyClassLoaderContextMatch(context_with_base_dir));
}
TEST_F(ClassLoaderContextTest, VerifyClassLoaderContextMatchAfterEncodingMultidex) {
jobject class_loader = LoadDexInPathClassLoader("MultiDex", nullptr);
std::unique_ptr<ClassLoaderContext> context = CreateContextForClassLoader(class_loader);
ASSERT_TRUE(context->VerifyClassLoaderContextMatch(context->EncodeContextForOatFile("")));
}
} // namespace art