129 lines
4.3 KiB
C++
129 lines
4.3 KiB
C++
// Copyright 2021 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <cassert>
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#include <cstdio>
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#include <fstream>
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#include <iostream>
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#include <string>
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#include <vector>
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#include "fuzzers/tint_common_fuzzer.h"
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namespace {
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/// Copies the content from the file named `input_file` to `buffer`,
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/// assuming each element in the file is of type `T`. If any error occurs,
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/// writes error messages to the standard error stream and returns false.
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/// Assumes the size of a `T` object is divisible by its required alignment.
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/// @returns true if we successfully read the file.
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template <typename T>
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bool ReadFile(const std::string& input_file, std::vector<T>* buffer) {
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if (!buffer) {
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std::cerr << "The buffer pointer was null" << std::endl;
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return false;
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}
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FILE* file = nullptr;
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#if defined(_MSC_VER)
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fopen_s(&file, input_file.c_str(), "rb");
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#else
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file = fopen(input_file.c_str(), "rb");
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#endif
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if (!file) {
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std::cerr << "Failed to open " << input_file << std::endl;
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return false;
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}
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fseek(file, 0, SEEK_END);
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auto tell_file_size = ftell(file);
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if (tell_file_size <= 0) {
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std::cerr << "Input file of incorrect size: " << input_file << std::endl;
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fclose(file);
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return {};
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}
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const auto file_size = static_cast<size_t>(tell_file_size);
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if (0 != (file_size % sizeof(T))) {
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std::cerr << "File " << input_file
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<< " does not contain an integral number of objects: "
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<< file_size << " bytes in the file, require " << sizeof(T)
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<< " bytes per object" << std::endl;
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fclose(file);
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return false;
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}
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fseek(file, 0, SEEK_SET);
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buffer->clear();
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buffer->resize(file_size / sizeof(T));
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size_t bytes_read = fread(buffer->data(), 1, file_size, file);
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fclose(file);
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if (bytes_read != file_size) {
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std::cerr << "Failed to read " << input_file << std::endl;
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return false;
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}
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return true;
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}
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} // namespace
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int main(int argc, const char** argv) {
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if (argc != 3) {
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std::cerr << "Usage: " << argv[0] << " <input file> <hlsl|msl|spv|wgsl>"
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<< std::endl;
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return 1;
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}
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std::string input_filename(argv[1]);
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std::string target_format(argv[2]);
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std::vector<uint8_t> data;
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if (!ReadFile<uint8_t>(input_filename, &data)) {
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return 1;
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}
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if (target_format == "hlsl") {
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tint::fuzzers::CommonFuzzer fuzzer(tint::fuzzers::InputFormat::kWGSL,
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tint::fuzzers::OutputFormat::kHLSL);
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int result = fuzzer.Run(data.data(), data.size());
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assert(false &&
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"Deliberate temporary assertion failure to check that ClusterFuzz "
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"black box fuzzer target is working.");
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return result;
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} else if (target_format == "msl") {
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tint::fuzzers::DataBuilder builder(data.data(), data.size());
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tint::writer::msl::Options options;
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GenerateMslOptions(&builder, &options);
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tint::fuzzers::CommonFuzzer fuzzer(tint::fuzzers::InputFormat::kWGSL,
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tint::fuzzers::OutputFormat::kMSL);
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fuzzer.SetOptionsMsl(options);
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return fuzzer.Run(data.data(), data.size());
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} else if (target_format == "spv") {
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tint::fuzzers::DataBuilder builder(data.data(), data.size());
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tint::writer::spirv::Options options;
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GenerateSpirvOptions(&builder, &options);
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tint::fuzzers::CommonFuzzer fuzzer(tint::fuzzers::InputFormat::kWGSL,
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tint::fuzzers::OutputFormat::kSpv);
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fuzzer.SetOptionsSpirv(options);
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return fuzzer.Run(data.data(), data.size());
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} else if (target_format == "wgsl") {
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tint::fuzzers::CommonFuzzer fuzzer(tint::fuzzers::InputFormat::kWGSL,
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tint::fuzzers::OutputFormat::kWGSL);
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return fuzzer.Run(data.data(), data.size());
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}
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assert(false && "Fuzzer configuration problem: unknown target format.");
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return 1;
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}
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