spirv-cross: initial integration

projects/spirv-cross/Dockerfile

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+# Copyright 2024 Google LLC
+#
+# 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.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder
+RUN apt-get update &&  \
+  apt-get install -y build-essential autoconf automake libtool pkg-config make \
+                     cmake
+
+
+RUN git clone https://github.com/KhronosGroup/SPIRV-Cross spirv-cross
+WORKDIR $SRC/spirv-cross
+
+COPY *_fuzzer.cpp build.sh $SRC/
+

projects/spirv-cross/build.sh

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+#!/bin/bash -eu
+# Copyright 2024 Google LLC
+#
+# 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.
+#
+################################################################################
+
+# Update submodule
+./checkout_glslang_spirv_tools.sh
+NPROC="--parallel $(nproc)" ./build_glslang_spirv_tools.sh
+
+# Build spirv-cross binaries with debug options
+cmake -S . -B build/ -D CMAKE_BUILD_TYPE=Debug \
+    -D CMAKE_CXX_FLAGS="$CXXFLAGS -pthread -stdlib=libc++"
+cmake --build build --config Debug --parallel $(nproc)
+
+# Copy built binaries of the spirv-cross project
+for fuzzers in $(find $SRC -maxdepth 1 -name '*_fuzzer.cpp'); do
+    fuzz_basename=$(basename -s .cpp $fuzzers)
+    $CXX $CXXFLAGS -std=c++17 -I$SRC/spirv-cross \
+        -I$SRC/spirv-cross/external/spirv-tools \
+        -I$SRC/spirv-cross/external/spirv-tools/include \
+        -c $fuzzers -o $fuzz_basename.o
+
+    $CXX $CXXFLAGS -std=c++17 $LIB_FUZZING_ENGINE \
+        $fuzz_basename.o -o $OUT/$fuzz_basename \
+        -Wl,--start-group \
+        $SRC/spirv-cross/build/*.a \
+        $SRC/spirv-cross/external/glslang-build/output/lib/*.a \
+        -Wl,--end-group
+done

projects/spirv-cross/parser_fuzzer.cpp

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+/* Copyright 2024 Google LLC
+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 "spirv_common.hpp"
+#include "spirv_parser.hpp"
+#include <cstdint>
+#include <vector>
+
+using namespace spirv_cross;
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  // Skip this iteration if data is not enough
+  if (size < (sizeof(uint32_t) * 5) || (size % 4 != 0)) {
+    return 0;
+  }
+
+  // Initialise objects and random data
+  std::vector<uint32_t> spirv_data((uint32_t *)data, (uint32_t *)(data + size));
+
+  // Set magic number, since this is needed to get past initial checks.
+  spirv_data[0] = 0x07230203;
+  spirv_data[1] = 0x10600;
+
+  Parser parser(spirv_data);
+  ParsedIR &ir = parser.get_parsed_ir();
+  SPIRFunction *current_function = nullptr;
+  SPIRBlock *current_block = nullptr;
+
+  try {
+    parser.parse();
+  } catch (...) {
+  }
+
+  return 0;
+}

projects/spirv-cross/project.yaml

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+homepage: "https://github.com/KhronosGroup/SPIRV-Cross"
+main_repo: "https://github.com/KhronosGroup/SPIRV-Cross.git"
+language: c++
+sanitizers:
+- address
+vendor_ccs:
+- "[email protected]"
+- "[email protected]"