content: # Copyright 2025 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-clang:ubuntu-20-04
  
  COPY install_deps_ubuntu-20-04.sh install_swift_ubuntu_20_04.sh /
  RUN /install_deps_ubuntu-20-04.sh
  
  # Build and install latest Python 3.11.
  ENV PYTHON_VERSION 3.11.13
  RUN PYTHON_DEPS="\
          zlib1g-dev \
          libncurses5-dev \
          libgdbm-dev \
          libnss3-dev \
          libssl-dev \
          libsqlite3-dev \
          libreadline-dev \
          libffi-dev \
          libbz2-dev \
          liblzma-dev" && \
      unset CFLAGS CXXFLAGS && \
      apt-get install -y $PYTHON_DEPS && \
      cd /tmp && \
      curl -O https://www.python.org/ftp/python/$PYTHON_VERSION/Python-$PYTHON_VERSION.tar.xz && \
      tar -xvf Python-$PYTHON_VERSION.tar.xz && \
      cd Python-$PYTHON_VERSION && \
      ./configure --enable-optimizations --enable-shared && \
      make -j$(nproc) && \
      make install && \
      ldconfig && \
      ln -s /usr/local/bin/python3 /usr/local/bin/python && \
      cd .. && \
      rm -r /tmp/Python-$PYTHON_VERSION.tar.xz /tmp/Python-$PYTHON_VERSION && \
      rm -rf /usr/local/lib/python${PYTHON_VERSION%.*}/test && \
      python3 -m ensurepip && \
      python3 -m pip install --upgrade pip && \
      apt-get remove -y $PYTHON_DEPS # https://github.com/google/oss-fuzz/issues/3888
  
  
  ENV CCACHE_VERSION 4.10.2
  RUN cd /tmp && curl -OL https://github.com/ccache/ccache/releases/download/v$CCACHE_VERSION/ccache-$CCACHE_VERSION.tar.xz && \
      tar -xvf ccache-$CCACHE_VERSION.tar.xz && cd ccache-$CCACHE_VERSION && \
      mkdir build && cd build && \
      export LDFLAGS='-lpthread' && \
      cmake -D CMAKE_BUILD_TYPE=Release .. && \
      make -j && make install && \
      rm -rf /tmp/ccache-$CCACHE_VERSION /tmp/ccache-$CCACHE_VERSION.tar.xz
  
  # Install six for Bazel rules.
  RUN unset CFLAGS CXXFLAGS && pip3 install -v --no-cache-dir \
      six==1.15.0 absl-py==2.3.0 pyelftools==0.32 && rm -rf /tmp/*
  
  # Install Bazel through Bazelisk, which automatically fetches the latest Bazel version.
  ENV BAZELISK_VERSION 1.9.0
  RUN curl -L https://github.com/bazelbuild/bazelisk/releases/download/v$BAZELISK_VERSION/bazelisk-linux-amd64 -o /usr/local/bin/bazel && \
      chmod +x /usr/local/bin/bazel
  
  # Default build flags for various sanitizers.
  ENV SANITIZER_FLAGS_address "-fsanitize=address -fsanitize-address-use-after-scope"
  ENV SANITIZER_FLAGS_hwaddress "-fsanitize=hwaddress -fuse-ld=lld -Wno-unused-command-line-argument"
  
  # Set of '-fsanitize' flags matches '-fno-sanitize-recover' + 'unsigned-integer-overflow'.
  ENV SANITIZER_FLAGS_undefined "-fsanitize=array-bounds,bool,builtin,enum,function,integer-divide-by-zero,null,object-size,return,returns-nonnull-attribute,shift,signed-integer-overflow,unsigned-integer-overflow,unreachable,vla-bound,vptr -fno-sanitize-recover=array-bounds,bool,builtin,enum,function,integer-divide-by-zero,null,object-size,return,returns-nonnull-attribute,shift,signed-integer-overflow,unreachable,vla-bound,vptr"
  
  # Don't include "function" since it is unsupported on aarch64.
  ENV SANITIZER_FLAGS_undefined_aarch64 "-fsanitize=array-bounds,bool,builtin,enum,integer-divide-by-zero,null,object-size,return,returns-nonnull-attribute,shift,signed-integer-overflow,unsigned-integer-overflow,unreachable,vla-bound,vptr -fno-sanitize-recover=array-bounds,bool,builtin,enum,integer-divide-by-zero,null,object-size,return,returns-nonnull-attribute,shift,signed-integer-overflow,unreachable,vla-bound,vptr"
  
  ENV SANITIZER_FLAGS_memory "-fsanitize=memory -fsanitize-memory-track-origins"
  
  ENV SANITIZER_FLAGS_thread "-fsanitize=thread"
  
  ENV SANITIZER_FLAGS_introspector "-O0 -flto -fno-inline-functions -fuse-ld=gold -Wno-unused-command-line-argument"
  
  # Do not use any sanitizers in the coverage build.
  ENV SANITIZER_FLAGS_coverage ""
  
  # We use unsigned-integer-overflow as an additional coverage signal and have to
  # suppress error messages. See https://github.com/google/oss-fuzz/issues/910.
  ENV UBSAN_OPTIONS="silence_unsigned_overflow=1"
  
  # To suppress warnings from binaries running during compilation.
  ENV DFSAN_OPTIONS='warn_unimplemented=0'
  
  # Default build flags for coverage feedback.
  ENV COVERAGE_FLAGS="-fsanitize=fuzzer-no-link"
  
  # Use '-Wno-unused-command-line-argument' to suppress "warning: -ldl: 'linker' input unused"
  # messages which are treated as errors by some projects.
  ENV COVERAGE_FLAGS_coverage "-fprofile-instr-generate -fcoverage-mapping -pthread -Wl,--no-as-needed -Wl,-ldl -Wl,-lm -Wno-unused-command-line-argument"
  
  # Default sanitizer, fuzzing engine and architecture to use.
  ENV SANITIZER="address"
  ENV FUZZING_ENGINE="libfuzzer"
  ENV ARCHITECTURE="x86_64"
  
  # DEPRECATED - NEW CODE SHOULD NOT USE THIS. OLD CODE SHOULD STOP. Please use
  # LIB_FUZZING_ENGINE instead.
  # Path to fuzzing engine library to support some old users of
  # LIB_FUZZING_ENGINE.
  ENV LIB_FUZZING_ENGINE_DEPRECATED="/usr/lib/libFuzzingEngine.a"
  
  # Argument passed to compiler to link against fuzzing engine.
  # Defaults to the path, but is "-fsanitize=fuzzer" in libFuzzer builds.
  ENV LIB_FUZZING_ENGINE="/usr/lib/libFuzzingEngine.a"
  
  # TODO: remove after tpm2 catchup.
  ENV FUZZER_LDFLAGS ""
  
  WORKDIR $SRC
  
  COPY afl_llvm22_patch.diff $SRC/
  RUN git clone https://github.com/AFLplusplus/AFLplusplus.git aflplusplus && \
      cd aflplusplus && \
      git checkout eadc8a2a7e0fa0338802ee6254bf296489ce4fd7 && \
      wget --no-check-certificate -O oss.sh https://raw.githubusercontent.com/vanhauser-thc/binary_blobs/master/oss.sh && \
      git apply $SRC/afl_llvm22_patch.diff && \
      rm -rf .git && \
      chmod 755 oss.sh
  
  # Do precompiles before copying other scripts for better cache efficiency.
  COPY precompile_afl /usr/local/bin/
  RUN precompile_afl
  
  RUN cd $SRC && \
      curl -L -O https://github.com/google/honggfuzz/archive/oss-fuzz.tar.gz && \
      mkdir honggfuzz && \
      cd honggfuzz && \
      tar -xz --strip-components=1 -f $SRC/oss-fuzz.tar.gz && \
      rm -rf examples $SRC/oss-fuzz.tar.gz
  
  
  COPY precompile_honggfuzz_ubuntu_20_04 /usr/local/bin/
  RUN precompile_honggfuzz_ubuntu_20_04
  
  RUN cd $SRC && \
      git clone https://github.com/google/fuzztest && \
      cd fuzztest && \
      git checkout a37d133f714395cabc20dd930969a889495c9f53 && \
      rm -rf .git
  
  ENV CENTIPEDE_BIN_DIR=$SRC/fuzztest/bazel-bin
  COPY precompile_centipede /usr/local/bin/
  RUN precompile_centipede
  
  COPY sanitizers /usr/local/lib/sanitizers
  
  COPY bazel_build_fuzz_tests \
      cargo \
      compile \
      compile_afl \
      compile_centipede \
      compile_honggfuzz \
      compile_fuzztests.sh \
      compile_go_fuzzer \
      compile_javascript_fuzzer \
      compile_libfuzzer \
      compile_native_go_fuzzer \
      compile_native_go_fuzzer_v2 \
      go_utils.sh \
      compile_python_fuzzer \
      debug_afl \
      # Go, JavaScript, Java, Python, Rust, and Swift installation scripts.
      install_go.sh \
      install_javascript.sh \
      install_java.sh \
      install_python.sh \
      install_ruby.sh \
      install_rust.sh \
      install_swift_ubuntu_20_04.sh \
      make_build_replayable.py \
      python_coverage_helper.py \
      replay_build.sh \
      srcmap \
      write_labels.py \
      unshallow_repos.py \
      /usr/local/bin/
  
  # TODO: Build this as part of a multi-stage build.
  ADD https://commondatastorage.googleapis.com/clusterfuzz-builds/jcc/clang-jcc /usr/local/bin/
  ADD https://commondatastorage.googleapis.com/clusterfuzz-builds/jcc/clang++-jcc /usr/local/bin
  ADD https://commondatastorage.googleapis.com/clusterfuzz-builds/jcc/clang-jcc2 /usr/local/bin/
  ADD https://commondatastorage.googleapis.com/clusterfuzz-builds/jcc/clang++-jcc2 /usr/local/bin
  RUN chmod +x /usr/local/bin/clang-jcc /usr/local/bin/clang++-jcc /usr/local/bin/clang-jcc2 /usr/local/bin/clang++-jcc2
  
  COPY llvmsymbol.diff $SRC
  COPY detect_repo.py /opt/cifuzz/
  COPY bazel.bazelrc /root/.bazelrc
  
  # Set up ccache binary and cache directory.
  # /ccache/bin will contain the compiler wrappers, and /ccache/cache will
  # contain the actual cache, which can be saved.
  # To use this, set PATH=/ccache/bin:$PATH.
  RUN mkdir -p /ccache/bin && mkdir -p /ccache/cache && \
      ln -s /usr/local/bin/ccache /ccache/bin/clang && \
      ln -s /usr/local/bin/ccache /ccache/bin/clang++ && \
      ln -s /usr/local/bin/ccache /ccache/bin/clang-jcc && \
      ln -s /usr/local/bin/ccache /ccache/bin/clang++-jcc
  ENV CCACHE_DIR /ccache/cache
  
  # Don't check that the compiler is the same, so we can switch between jcc and
  # clang under the hood and re-use the same build cache.
  ENV CCACHE_COMPILERCHECK none
  ENV CCACHE_COMPILERTYPE clang
  
  # Build newer patchelf than the one available from Ubuntu.
  RUN cd /tmp && git clone https://github.com/NixOS/patchelf && \
      apt-get update && apt-get install -y autoconf && \
      cd patchelf && git checkout 523f401584d9584e76c9c77004e7abeb9e6c4551 && \
      unset CFLAGS && export CXXFLAGS='-stdlib=libc++' && export LDFLAGS='-lpthread' && \
      ./bootstrap.sh && ./configure && make && \
      cp /tmp/patchelf/src/patchelf /usr/local/bin && \
      rm -rf /tmp/patchelf && apt-get remove -y autoconf
  
  COPY indexer /opt/indexer
  COPY --from=gcr.io/oss-fuzz-base/indexer /indexer/build/indexer /opt/indexer/indexer
  RUN chmod a+x /opt/indexer/indexer /opt/indexer/index_build.py
  
  CMD ["compile"]
  