blob: bd30e718161490a865cebf681e1a8aec91fb222a [file] [log] [blame]
// Copyright 2011 Google Inc. All Rights Reserved.
#include "common_test.h"
#include "file.h"
#include "image.h"
#include "image_writer.h"
#include "space.h"
#include "utils.h"
#include "gtest/gtest.h"
namespace art {
class ImageTest : public CommonTest {};
TEST_F(ImageTest, WriteRead) {
// TODO: move the touching of classes and GC to the ImageWriter proper
for (size_t i = 0; i < java_lang_dex_file_->NumClassDefs(); i++) {
const DexFile::ClassDef& class_def = java_lang_dex_file_->GetClassDef(i);
const char* descriptor = java_lang_dex_file_->GetClassDescriptor(class_def);
Class* klass = class_linker_->FindSystemClass(descriptor);
ASSERT_TRUE(klass != NULL) << descriptor;
// TODO: Heap::CollectGarbage before writing
const std::vector<Space*>& spaces = Heap::GetSpaces();
// can't currently deal with writing a space that might have pointers between spaces
ASSERT_EQ(1U, spaces.size());
Space* space = spaces[0];
ImageWriter writer;
ScratchFile tmp;
const int image_base = 0x50000000;
bool success = writer.Write(space, tmp.GetFilename(), reinterpret_cast<byte*>(image_base));
scoped_ptr<File> file(OS::OpenFile(tmp.GetFilename(), false));
ImageHeader image_header;
file->ReadFully(&image_header, sizeof(image_header));
ASSERT_GE(sizeof(image_header) + space->Size(), static_cast<size_t>(file->Length()));
// tear down old runtime before making a new one, clearing out misc state
delete runtime_.release();
// don't reuse java_lang_dex_file_ so we make sure we don't get
// lucky by pointers that happen to work referencing the earlier
// dex.
delete java_lang_dex_file_.release();
scoped_ptr<const DexFile> dex(GetLibCoreDex());
std::vector<const DexFile*> boot_class_path;
Runtime::Options options;
options.push_back(std::make_pair("bootclasspath", &boot_class_path));
std::string boot_image("-Xbootimage:");
options.push_back(std::make_pair(boot_image.c_str(), reinterpret_cast<void*>(NULL)));
runtime_.reset(Runtime::Create(options, false));
ASSERT_TRUE(runtime_ != NULL);
class_linker_ = runtime_->GetClassLinker();
ASSERT_EQ(2U, Heap::GetSpaces().size());
Space* boot_space = Heap::GetSpaces()[0];
ASSERT_TRUE(boot_space != NULL);
// enable to display maps to debug boot_base and boot_limit checking problems below
if (false) {
const char* maps_file = "/proc/self/maps";
std::string contents = ReadFileToString(maps_file);
LG << maps_file << ":\n" << contents;
byte* boot_base = boot_space->GetBase();
byte* boot_limit = boot_space->GetLimit();
for (size_t i = 0; i < dex->NumClassDefs(); i++) {
const DexFile::ClassDef& class_def = dex->GetClassDef(i);
const char* descriptor = dex->GetClassDescriptor(class_def);
Class* klass = class_linker_->FindSystemClass(descriptor);
EXPECT_TRUE(klass != NULL) << descriptor;
EXPECT_LT(boot_base, reinterpret_cast<byte*>(klass)) << descriptor;
EXPECT_LT(reinterpret_cast<byte*>(klass), boot_limit) << descriptor;
} // namespace art