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- // Copyright 2018 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include <stddef.h>
- #include <stdint.h>
- #include "base/logging.h"
- #include "components/zucchini/buffer_view.h"
- #include "components/zucchini/disassembler.h"
- #include "components/zucchini/disassembler_dex.h"
- namespace {
- struct Environment {
- Environment() { logging::SetMinLogLevel(logging::LOG_FATAL); }
- };
- } // namespace
- extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
- static Environment env;
- if (!size)
- return 0;
- // Prepare data.
- std::vector<uint8_t> mutable_data(data, data + size);
- zucchini::ConstBufferView image(mutable_data.data(), mutable_data.size());
- // Create disassembler. Early exit on failure.
- auto disassembler_dex =
- zucchini::Disassembler::Make<zucchini::DisassemblerDex>(image);
- if (!disassembler_dex)
- return 0;
- CHECK_LE(disassembler_dex->size(), image.size());
- zucchini::MutableBufferView mutable_image(mutable_data.data(),
- disassembler_dex->size());
- std::vector<zucchini::Reference> references;
- // Read all references in the file.
- auto groups = disassembler_dex->MakeReferenceGroups();
- for (const auto& group : groups) {
- auto reader = group.GetReader(disassembler_dex.get());
- for (auto ref = reader->GetNext(); ref.has_value();
- ref = reader->GetNext()) {
- references.push_back(ref.value());
- }
- reader.reset();
- auto writer = group.GetWriter(mutable_image, disassembler_dex.get());
- for (const auto& ref : references)
- writer->PutNext(ref);
- references.clear();
- }
- return 0;
- }
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