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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 <string>
#include <vector>
#include "common_test.h"
#include "compiler/elf_fixup.h"
#include "compiler/image_writer.h"
#include "compiler/oat_writer.h"
#include "gc/space/image_space.h"
#include "image.h"
#include "signal_catcher.h"
#include "UniquePtr.h"
#include "utils.h"
#include "vector_output_stream.h"
namespace art {
class ImageTest : public CommonTest {
protected:
virtual void SetUp() {
ReserveImageSpace();
CommonTest::SetUp();
}
};
TEST_F(ImageTest, WriteRead) {
ScratchFile tmp_elf;
{
{
jobject class_loader = NULL;
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
base::TimingLogger timings("ImageTest::WriteRead", false, false);
timings.StartSplit("CompileAll");
#if defined(ART_USE_PORTABLE_COMPILER)
// TODO: we disable this for portable so the test executes in a reasonable amount of time.
// We shouldn't need to do this.
runtime_->SetCompilerFilter(Runtime::kInterpretOnly);
#endif
compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), timings);
ScopedObjectAccess soa(Thread::Current());
OatWriter oat_writer(class_linker->GetBootClassPath(),
0, 0, "", compiler_driver_.get());
bool success = compiler_driver_->WriteElf(GetTestAndroidRoot(),
!kIsTargetBuild,
class_linker->GetBootClassPath(),
oat_writer,
tmp_elf.GetFile());
ASSERT_TRUE(success);
}
}
// Workound bug that mcld::Linker::emit closes tmp_elf by reopening as tmp_oat.
UniquePtr<File> tmp_oat(OS::OpenFileReadWrite(tmp_elf.GetFilename().c_str()));
ASSERT_TRUE(tmp_oat.get() != NULL);
ScratchFile tmp_image;
const uintptr_t requested_image_base = ART_BASE_ADDRESS;
{
ImageWriter writer(*compiler_driver_.get());
bool success_image = writer.Write(tmp_image.GetFilename(), requested_image_base,
tmp_oat->GetPath(), tmp_oat->GetPath());
ASSERT_TRUE(success_image);
bool success_fixup = ElfFixup::Fixup(tmp_oat.get(), writer.GetOatDataBegin());
ASSERT_TRUE(success_fixup);
}
{
UniquePtr<File> file(OS::OpenFileForReading(tmp_image.GetFilename().c_str()));
ASSERT_TRUE(file.get() != NULL);
ImageHeader image_header;
file->ReadFully(&image_header, sizeof(image_header));
ASSERT_TRUE(image_header.IsValid());
ASSERT_GE(image_header.GetImageBitmapOffset(), sizeof(image_header));
ASSERT_NE(0U, image_header.GetImageBitmapSize());
gc::Heap* heap = Runtime::Current()->GetHeap();
ASSERT_EQ(1U, heap->GetContinuousSpaces().size());
gc::space::ContinuousSpace* space = heap->GetContinuousSpaces().front();
ASSERT_FALSE(space->IsImageSpace());
ASSERT_TRUE(space != NULL);
ASSERT_TRUE(space->IsDlMallocSpace());
ASSERT_GE(sizeof(image_header) + space->Size(), static_cast<size_t>(file->GetLength()));
}
ASSERT_TRUE(compiler_driver_->GetImageClasses() != NULL);
CompilerDriver::DescriptorSet image_classes(*compiler_driver_->GetImageClasses());
// Need to delete the compiler since it has worker threads which are attached to runtime.
compiler_driver_.reset();
// Tear down old runtime before making a new one, clearing out misc state.
runtime_.reset();
java_lang_dex_file_ = NULL;
UniquePtr<const DexFile> dex(DexFile::Open(GetLibCoreDexFileName(), GetLibCoreDexFileName()));
ASSERT_TRUE(dex.get() != NULL);
// Remove the reservation of the memory for use to load the image.
UnreserveImageSpace();
Runtime::Options options;
std::string image("-Ximage:");
image.append(tmp_image.GetFilename());
options.push_back(std::make_pair(image.c_str(), reinterpret_cast<void*>(NULL)));
if (!Runtime::Create(options, false)) {
LOG(FATAL) << "Failed to create runtime";
return;
}
runtime_.reset(Runtime::Current());
// Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start,
// give it away now and then switch to a more managable ScopedObjectAccess.
Thread::Current()->TransitionFromRunnableToSuspended(kNative);
ScopedObjectAccess soa(Thread::Current());
ASSERT_TRUE(runtime_.get() != NULL);
class_linker_ = runtime_->GetClassLinker();
gc::Heap* heap = Runtime::Current()->GetHeap();
ASSERT_EQ(2U, heap->GetContinuousSpaces().size());
ASSERT_TRUE(heap->GetContinuousSpaces()[0]->IsImageSpace());
ASSERT_FALSE(heap->GetContinuousSpaces()[0]->IsDlMallocSpace());
ASSERT_FALSE(heap->GetContinuousSpaces()[1]->IsImageSpace());
ASSERT_TRUE(heap->GetContinuousSpaces()[1]->IsDlMallocSpace());
gc::space::ImageSpace* image_space = heap->GetImageSpace();
image_space->VerifyImageAllocations();
byte* image_begin = image_space->Begin();
byte* image_end = image_space->End();
CHECK_EQ(requested_image_base, reinterpret_cast<uintptr_t>(image_begin));
for (size_t i = 0; i < dex->NumClassDefs(); ++i) {
const DexFile::ClassDef& class_def = dex->GetClassDef(i);
const char* descriptor = dex->GetClassDescriptor(class_def);
mirror::Class* klass = class_linker_->FindSystemClass(descriptor);
EXPECT_TRUE(klass != NULL) << descriptor;
EXPECT_LT(image_begin, reinterpret_cast<byte*>(klass)) << descriptor;
if (image_classes.find(descriptor) != image_classes.end()) {
// image classes should be located before the end of the image.
EXPECT_LT(reinterpret_cast<byte*>(klass), image_end) << descriptor;
} else {
// non image classes should be in a space after the image.
EXPECT_GT(reinterpret_cast<byte*>(klass), image_end) << descriptor;
}
EXPECT_TRUE(Monitor::IsValidLockWord(*klass->GetRawLockWordAddress()));
}
}
} // namespace art
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