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/*
* Copyright (C) 2011 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 "mirror/abstract_method-inl.h"
#include "mirror/class-inl.h"
#include "mirror/object_array-inl.h"
#include "mirror/object-inl.h"
#include "oat_file.h"
#include "oat_writer.h"
#include "vector_output_stream.h"
#include "common_test.h"
namespace art {
class OatTest : public CommonTest {
protected:
void CheckMethod(mirror::AbstractMethod* method,
const OatFile::OatMethod& oat_method,
const DexFile* dex_file)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
const CompiledMethod* compiled_method =
compiler_driver_->GetCompiledMethod(CompilerDriver::MethodReference(dex_file,
method->GetDexMethodIndex()));
if (compiled_method == NULL) {
EXPECT_TRUE(oat_method.GetCode() == NULL) << PrettyMethod(method) << " "
<< oat_method.GetCode();
#if !defined(ART_USE_PORTABLE_COMPILER)
EXPECT_EQ(oat_method.GetFrameSizeInBytes(), static_cast<uint32_t>(kStackAlignment));
EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U);
EXPECT_EQ(oat_method.GetFpSpillMask(), 0U);
#endif
} else {
const void* oat_code = oat_method.GetCode();
EXPECT_TRUE(oat_code != NULL) << PrettyMethod(method);
uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(oat_code), 2);
oat_code = reinterpret_cast<const void*>(oat_code_aligned);
const std::vector<uint8_t>& code = compiled_method->GetCode();
size_t code_size = code.size() * sizeof(code[0]);
EXPECT_EQ(0, memcmp(oat_code, &code[0], code_size))
<< PrettyMethod(method) << " " << code_size;
CHECK_EQ(0, memcmp(oat_code, &code[0], code_size));
#if !defined(ART_USE_PORTABLE_COMPILER)
EXPECT_EQ(oat_method.GetFrameSizeInBytes(), compiled_method->GetFrameSizeInBytes());
EXPECT_EQ(oat_method.GetCoreSpillMask(), compiled_method->GetCoreSpillMask());
EXPECT_EQ(oat_method.GetFpSpillMask(), compiled_method->GetFpSpillMask());
#endif
}
}
};
TEST_F(OatTest, WriteRead) {
const bool compile = false; // DISABLED_ due to the time to compile libcore
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
jobject class_loader = NULL;
if (compile) {
// TODO: make selectable
#if defined(ART_USE_PORTABLE_COMPILER)
CompilerBackend compiler_backend = kPortable;
#else
CompilerBackend compiler_backend = kQuick;
#endif
compiler_driver_.reset(new CompilerDriver(compiler_backend, kThumb2, false, 2, false, false,
NULL, true, true));
compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath());
}
ScopedObjectAccess soa(Thread::Current());
ScratchFile tmp;
std::vector<uint8_t> oat_contents;
VectorOutputStream output_stream(tmp.GetFilename(), oat_contents);
bool success_oat = OatWriter::Create(output_stream,
class_linker->GetBootClassPath(),
42U,
4096U,
"lue.art",
*compiler_driver_.get());
ASSERT_TRUE(success_oat);
bool success_elf = compiler_driver_->WriteElf(GetTestAndroidRoot(),
!kIsTargetBuild,
class_linker->GetBootClassPath(),
oat_contents,
tmp.GetFile());
ASSERT_TRUE(success_elf);
if (compile) { // OatWriter strips the code, regenerate to compare
compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath());
}
UniquePtr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), NULL));
ASSERT_TRUE(oat_file.get() != NULL);
const OatHeader& oat_header = oat_file->GetOatHeader();
ASSERT_TRUE(oat_header.IsValid());
ASSERT_EQ(2U, oat_header.GetDexFileCount()); // core and conscrypt
ASSERT_EQ(42U, oat_header.GetImageFileLocationOatChecksum());
ASSERT_EQ(4096U, oat_header.GetImageFileLocationOatDataBegin());
ASSERT_EQ("lue.art", oat_header.GetImageFileLocation());
const DexFile* dex_file = java_lang_dex_file_;
const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file->GetLocation());
CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum());
for (size_t i = 0; i < dex_file->NumClassDefs(); i++) {
const DexFile::ClassDef& class_def = dex_file->GetClassDef(i);
const byte* class_data = dex_file->GetClassData(class_def);
size_t num_virtual_methods =0;
if (class_data != NULL) {
ClassDataItemIterator it(*dex_file, class_data);
num_virtual_methods = it.NumVirtualMethods();
}
const char* descriptor = dex_file->GetClassDescriptor(class_def);
UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(i));
mirror::Class* klass = class_linker->FindClass(descriptor, NULL);
size_t method_index = 0;
for (size_t i = 0; i < klass->NumDirectMethods(); i++, method_index++) {
CheckMethod(klass->GetDirectMethod(i),
oat_class->GetOatMethod(method_index), dex_file);
}
for (size_t i = 0; i < num_virtual_methods; i++, method_index++) {
CheckMethod(klass->GetVirtualMethod(i),
oat_class->GetOatMethod(method_index), dex_file);
}
}
}
TEST_F(OatTest, OatHeaderSizeCheck) {
// If this test is failing and you have to update these constants,
// it is time to update OatHeader::kOatVersion
EXPECT_EQ(36U, sizeof(OatHeader));
EXPECT_EQ(28U, sizeof(OatMethodOffsets));
}
TEST_F(OatTest, OatHeaderIsValid) {
InstructionSet instruction_set = kX86;
std::vector<const DexFile*> dex_files;
uint32_t image_file_location_oat_checksum = 0;
uint32_t image_file_location_oat_begin = 0;
const std::string image_file_location;
OatHeader oat_header(instruction_set,
&dex_files,
image_file_location_oat_checksum,
image_file_location_oat_begin,
image_file_location);
ASSERT_TRUE(oat_header.IsValid());
char* magic = const_cast<char*>(oat_header.GetMagic());
strcpy(magic, ""); // bad magic
ASSERT_FALSE(oat_header.IsValid());
strcpy(magic, "oat\n000"); // bad version
ASSERT_FALSE(oat_header.IsValid());
}
} // namespace art
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