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/* Copyright (C) 2017 The Android Open Source Project
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This file implements interfaces from the file jvmti.h. This implementation
* is licensed under the same terms as the file jvmti.h. The
* copyright and license information for the file jvmti.h follows.
*
* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#ifndef ART_RUNTIME_OPENJDKJVMTI_FIXED_UP_DEX_FILE_H_
#define ART_RUNTIME_OPENJDKJVMTI_FIXED_UP_DEX_FILE_H_
#include <memory>
#include <vector>
#include "jni.h"
#include "jvmti.h"
#include "base/mutex.h"
#include "dex_file.h"
namespace openjdkjvmti {
// A holder for a DexFile that has been 'fixed up' to ensure it is fully compliant with the
// published standard (no internal/quick opcodes, all fields are the defined values, etc). This is
// used to ensure that agents get a consistent dex file regardless of what version of android they
// are running on.
class FixedUpDexFile {
public:
static std::unique_ptr<FixedUpDexFile> Create(const art::DexFile& original)
REQUIRES_SHARED(art::Locks::mutator_lock_);
const art::DexFile& GetDexFile() {
return *dex_file_;
}
const unsigned char* Begin() {
return data_.data();
}
size_t Size() {
return data_.size();
}
private:
explicit FixedUpDexFile(std::unique_ptr<const art::DexFile> fixed_up_dex_file,
std::vector<unsigned char> data)
: dex_file_(std::move(fixed_up_dex_file)),
data_(std::move(data)) {}
// the fixed up DexFile
std::unique_ptr<const art::DexFile> dex_file_;
// The backing data for dex_file_.
const std::vector<unsigned char> data_;
DISALLOW_COPY_AND_ASSIGN(FixedUpDexFile);
};
} // namespace openjdkjvmti
#endif // ART_RUNTIME_OPENJDKJVMTI_FIXED_UP_DEX_FILE_H_
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