Add files using upload-large-folder tool

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-builder/bash_parser.py

@@ -0,0 +1,235 @@
+#!/usr/bin/python3
+# 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.
+
+import os
+import sys
+
+from glob import glob
+
+import bashlex
+
+
+def find_all_bash_scripts_in_src():
+  """Finds all bash scripts that exist in SRC/. This is used to idenfiy scripts
+  that may be needed for reading during the AST parsing. This is the case
+  when a given build script calls another build script, then we need to
+  read those."""
+  all_local_scripts = [
+      y for x in os.walk('/src/') for y in glob(os.path.join(x[0], '*.sh'))
+  ]
+  scripts_we_care_about = []
+  to_ignore = {'aflplusplus', 'honggfuzz', '/fuzztest', '/centipede'}
+  for s in all_local_scripts:
+    if any([x for x in to_ignore if x in s]):
+      continue
+    scripts_we_care_about.append(s)
+
+  print(scripts_we_care_about)
+  return scripts_we_care_about
+
+
+def should_discard_command(ast_tree) -> bool:
+  """Returns True if the command shuold be avoided, otherwise False"""
+  try:
+    first_word = ast_tree.parts[0].word
+  except:  # pylint: disable=bare-except
+    return False
+
+  if ('cmake' in first_word and
+      any('--build' in part.word for part in ast_tree.parts)):
+    return False
+
+  cmds_to_avoid_replaying = {
+      'configure', 'autoheader', 'autoconf', 'autoreconf', 'cmake', 'autogen.sh'
+  }
+  if any([cmd for cmd in cmds_to_avoid_replaying if cmd in first_word]):
+    return True
+
+  # Avoid all "make clean" calls. We dont want to erase previously build
+  # files.
+  try:
+    second_word = ast_tree.parts[1].word
+  except:  # pylint: disable=bare-except
+    return False
+  if 'make' in first_word and 'clean' in second_word:
+    return True
+
+  # No match was found to commands we dont want to build. There is no
+  # indication we shuold avoid.
+  return False
+
+
+def is_local_redirection(ast_node, all_local_scripts):
+  """Return the list of scripts corresponding to the command, in case
+    the command is an execution of a local script."""
+  # print("Checking")
+
+  # Capture local script called with ./random/path/build.sh
+
+  if len(ast_node.parts) >= 2:
+    try:
+      ast_node.parts[0].word
+    except:
+      return []
+    if ast_node.parts[0].word == '.':
+      suffixes_matching = []
+      #print(ast_node.parts[1].word)
+      for bash_script in all_local_scripts:
+        #print("- %s"%(bash_script))
+        cmd_to_exec = ast_node.parts[1].word.replace('$SRC', 'src')
+        if bash_script.endswith(cmd_to_exec):
+          suffixes_matching.append(bash_script)
+      #print(suffixes_matching)
+      return suffixes_matching
+  # Capture a local script called with $SRC/random/path/build.sh
+  if len(ast_node.parts) >= 1:
+    if '$SRC' in ast_node.parts[0].word:
+      suffixes_matching = []
+      print(ast_node.parts[0].word)
+      for bash_script in all_local_scripts:
+        print("- %s" % (bash_script))
+        cmd_to_exec = ast_node.parts[0].word.replace('$SRC', 'src')
+        if bash_script.endswith(cmd_to_exec):
+          suffixes_matching.append(bash_script)
+      print(suffixes_matching)
+      return suffixes_matching
+
+  return []
+
+
+def handle_ast_command(ast_node, all_scripts_in_fs, raw_script):
+  """Generate bash script string for command node"""
+  new_script = ''
+  if should_discard_command(ast_node):
+    return ''
+
+  matches = is_local_redirection(ast_node, all_scripts_in_fs)
+  if len(matches) == 1:
+    new_script += parse_script(matches[0], all_scripts_in_fs) + '\n'
+    return ''
+
+  # Extract the command from the script string
+  idx_start = ast_node.pos[0]
+  idx_end = ast_node.pos[1]
+  new_script += raw_script[idx_start:idx_end]
+  #new_script += '\n'
+
+  # If mkdir is used, then ensure that '-p' is provided, as
+  # otherwise we will run into failures. We don't have to worry
+  # about multiple uses of -p as `mkdir -p -p -p`` is valid.
+  new_script = new_script.replace('mkdir', 'mkdir -p')
+  return new_script
+
+
+def handle_ast_list(ast_node, all_scripts_in_fs, raw_script):
+  """Handles bashlex AST list."""
+  new_script = ''
+  try_hard = 1
+
+  if not try_hard:
+    list_start = ast_node.pos[0]
+    list_end = ast_node.pos[1]
+    new_script += raw_script[list_start:list_end]  # + '\n'
+  else:
+    # This is more refined logic. Ideally, this should work, but it's a bit
+    # more intricate to get right due to e.g. white-space between positions
+    # and more extensive parsing needed. We don't neccesarily need this
+    # level of success rate for what we're trying to achieve, so am disabling
+    # this for now.
+    for part in ast_node.parts:
+      if part.kind == 'list':
+        new_script += handle_ast_list(part, all_scripts_in_fs, raw_script)
+      elif part.kind == 'command':
+        new_script += handle_ast_command(part, all_scripts_in_fs, raw_script)
+      else:
+        idx_start = part.pos[0]
+        idx_end = part.pos[1]
+        new_script += raw_script[idx_start:idx_end]
+      new_script += ' '
+
+  # Make sure what was created is valid syntax, and otherwise return empty
+  try:
+    bashlex.parse(new_script)
+  except:  # pylint: disable=bare-except
+    # Maybe return the original here instead of skipping?
+    return ''
+  return new_script
+
+
+def handle_ast_compound(ast_node, all_scripts_in_fs, raw_script):
+  """Handles bashlex compound AST node."""
+  new_script = ''
+  list_start = ast_node.pos[0]
+  list_end = ast_node.pos[1]
+  new_script += raw_script[list_start:list_end] + '\n'
+  return new_script
+
+
+def handle_node(ast_node, all_scripts_in_fs, build_script):
+  """Generates a bash script string for a given node"""
+  if ast_node.kind == 'command':
+    return handle_ast_command(ast_node, all_scripts_in_fs, build_script)
+  elif ast_node.kind == 'list':
+    return handle_ast_list(ast_node, all_scripts_in_fs, build_script)
+  elif ast_node.kind == 'compound':
+    print('todo: handle compound')
+    return handle_ast_compound(ast_node, all_scripts_in_fs, build_script)
+  elif ast_node.kind == 'pipeline':
+    # Not supported
+    return ''
+  else:
+    raise Exception(f'Missing node handling: {ast_node.kind}')
+
+
+def parse_script(bash_script, all_scripts) -> str:
+  """Top-level bash script parser"""
+  new_script = ''
+  with open(bash_script, 'r', encoding='utf-8') as f:
+    build_script = f.read()
+  try:
+    parts = bashlex.parse(build_script)
+  except bashlex.errors.ParsingError:
+    return ''
+  for part in parts:
+    new_script += handle_node(part, all_scripts, build_script)
+    new_script += '\n'
+    print("-" * 45)
+    print(part.kind)
+    print(part.dump())
+
+  return new_script
+
+
+def main():
+  """Main function"""
+  all_scripts = find_all_bash_scripts_in_src()
+  replay_bash_script = parse_script(sys.argv[1], all_scripts)
+
+  print("REPLAYABLE BASH SCRIPT")
+  print("#" * 60)
+  print(replay_bash_script)
+  print("#" * 60)
+
+  out_dir = os.getenv('OUT', '/out')
+  with open(f'{out_dir}/replay-build-script.sh', 'w', encoding='utf-8') as f:
+    f.write(replay_bash_script)
+
+  src_dir = os.getenv('SRC', '/src')
+  with open(f'{src_dir}/replay_build.sh', 'w', encoding='utf-8') as f:
+    f.write(replay_bash_script)
+
+
+if __name__ == "__main__":
+  main()

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-builder/compile_fuzztests.sh

@@ -0,0 +1,126 @@
+#!/bin/bash -eu
+# Copyright 2022 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.
+#
+################################################################################
+
+set -x
+
+# In order to identify fuzztest test case "bazel query" is used to search
+# the project. A search of the entire project is done with a default "...",
+# however, some projects may fail to, or have very long processing time, if
+# searching the entire project. Additionally, it may include fuzzers in
+# dependencies, which should not be build as part of a given project.
+# Tensorflow is an example project that will fail when the entire project is
+# queried. FUZZTEST_TARGET_FOLDER makes it posible to specify the folder
+# where fuzztest fuzzers should be search for. FUZZTEST_TARGET_FOLDER is passed
+# to "bazel query" below.
+if [[ ${FUZZTEST_TARGET_FOLDER:-"unset"} == "unset" ]];
+then
+  export TARGET_FOLDER="..."
+else
+  TARGET_FOLDER=${FUZZTEST_TARGET_FOLDER}
+fi
+
+BUILD_ARGS="--config=oss-fuzz --subcommands"
+if [[ ${FUZZTEST_EXTRA_ARGS:-"unset"} != "unset" ]];
+then
+  BUILD_ARGS="$BUILD_ARGS ${FUZZTEST_EXTRA_ARGS}"
+fi
+
+# Trigger setup_configs rule of fuzztest as it generates the necessary
+# configuration file based on OSS-Fuzz environment variables.
+bazel run @com_google_fuzztest//bazel:setup_configs >> /etc/bazel.bazelrc
+
+# Bazel target names of the fuzz binaries.
+FUZZ_TEST_BINARIES=$(bazel query "kind(\"cc_test\", rdeps(${TARGET_FOLDER}, @com_google_fuzztest//fuzztest:fuzztest_gtest_main))")
+
+# Bazel output paths of the fuzz binaries.
+FUZZ_TEST_BINARIES_OUT_PATHS=$(bazel cquery "kind(\"cc_test\", rdeps(${TARGET_FOLDER}, @com_google_fuzztest//fuzztest:fuzztest_gtest_main))" --output=files)
+
+# Build the project and fuzz binaries
+# Expose `FUZZTEST_EXTRA_TARGETS` environment variable, in the event a project
+# includes non-FuzzTest fuzzers then this can be used to compile these in the
+# same `bazel build` command as when building the FuzzTest fuzzers.
+# This is to avoid having to call `bazel build` twice.
+bazel build $BUILD_ARGS -- ${FUZZ_TEST_BINARIES[*]} ${FUZZTEST_EXTRA_TARGETS:-}
+
+# Iterate the fuzz binaries and list each fuzz entrypoint in the binary. For
+# each entrypoint create a wrapper script that calls into the binaries the
+# given entrypoint as argument.
+# The scripts will be named:
+# {binary_name}@{fuzztest_entrypoint}
+for fuzz_main_file in $FUZZ_TEST_BINARIES_OUT_PATHS; do
+  FUZZ_TESTS=$($fuzz_main_file --list_fuzz_tests)
+  cp ${fuzz_main_file} $OUT/
+  fuzz_basename=$(basename $fuzz_main_file)
+  chmod -x $OUT/$fuzz_basename
+  for fuzz_entrypoint in $FUZZ_TESTS; do
+    TARGET_FUZZER="${fuzz_basename}@$fuzz_entrypoint"
+
+    # Write executer script
+    echo "#!/bin/sh
+# LLVMFuzzerTestOneInput for fuzzer detection.
+this_dir=\$(dirname \"\$0\")
+chmod +x \$this_dir/$fuzz_basename
+\$this_dir/$fuzz_basename --fuzz=$fuzz_entrypoint -- \$@" > $OUT/$TARGET_FUZZER
+    chmod +x $OUT/$TARGET_FUZZER
+  done
+done
+
+# Synchronise coverage directory to bazel output artifacts. This is a
+# best-effort basis in that it will include source code in common
+# bazel output folders.
+# For projects that store results in non-standard folders or want to
+# manage what code to include in the coverage report more specifically,
+# the FUZZTEST_DO_SYNC environment variable is made available. Projects
+# can then implement a custom way of synchronising source code with the
+# coverage build. Set FUZZTEST_DO_SYNC to something other than "yes" and
+# no effort will be made to automatically synchronise the source code with
+# the code coverage visualisation utility.
+if [[ "$SANITIZER" = "coverage" && ${FUZZTEST_DO_SYNC:-"yes"} == "yes" ]]
+then 
+  # Synchronize bazel source files to coverage collection.
+  declare -r REMAP_PATH="${OUT}/proc/self/cwd"
+  mkdir -p "${REMAP_PATH}"
+  
+  # Synchronize the folder bazel-BAZEL_OUT_PROJECT.
+  declare -r RSYNC_FILTER_ARGS=("--include" "*.h" "--include" "*.cc" "--include" \
+    "*.hpp" "--include" "*.cpp" "--include" "*.c" "--include" "*/" "--include" "*.inc" \
+    "--exclude" "*")
+
+  project_folders="$(find . -name 'bazel-*' -type l -printf '%P\n' | \
+                    grep -v -x -F \
+                    -e 'bazel-bin' \
+                    -e 'bazel-testlogs')"
+  for link in $project_folders; do
+   if [[ -d "${PWD}"/$link/external  ]]
+   then
+     rsync -avLk "${RSYNC_FILTER_ARGS[@]}" "${PWD}"/$link/external "${REMAP_PATH}"
+   fi
+   # k8-opt is a common path for storing bazel output artifacts, e.g. bazel-out/k8-opt.
+   # It's the output folder for default amd-64 builds, but projects may specify custom
+   # platform output directories, see: https://github.com/bazelbuild/bazel/issues/13818
+   # We support the default at the moment, and if a project needs custom synchronizing of
+   # output artifacts and code coverage we currently recommend using FUZZTEST_DO_SYNC.
+   if [[ -d "${PWD}"/$link/k8-opt  ]]
+   then
+     rsync -avLk "${RSYNC_FILTER_ARGS[@]}" "${PWD}"/$link/k8-opt "${REMAP_PATH}"/$link
+   fi
+  done
+
+  # Delete symlinks and sync the current folder.
+  find . -type l -ls -delete
+  rsync -av ${PWD}/ "${REMAP_PATH}"
+fi

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-builder/install_ruby.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+# 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.
+#
+################################################################################
+
+apt update
+apt install -y lsb-release software-properties-common gnupg2 binutils xz-utils libyaml-dev
+gpg2 --keyserver keyserver.ubuntu.com --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
+curl -sSL https://get.rvm.io | bash
+
+. /etc/profile.d/rvm.sh
+
+rvm install ruby-3.3.1

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-builder/install_swift.sh

@@ -0,0 +1,67 @@
+#!/bin/bash -eux
+# Copyright 2021 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.
+#
+################################################################################
+
+
+SWIFT_PACKAGES="wget \
+          binutils \
+          git \
+          gnupg2 \
+          libc6-dev \
+          libcurl4 \
+          libedit2 \
+          libgcc-9-dev \
+          libpython2.7 \
+          libsqlite3-0 \
+          libstdc++-9-dev \
+          libxml2 \
+          libz3-dev \
+          pkg-config \
+          tzdata \
+          zlib1g-dev"
+SWIFT_SYMBOLIZER_PACKAGES="build-essential make cmake ninja-build git python3 g++-multilib binutils-dev zlib1g-dev"
+apt-get update && apt install -y $SWIFT_PACKAGES && \
+  apt install -y $SWIFT_SYMBOLIZER_PACKAGES --no-install-recommends
+
+
+wget -q https://download.swift.org/swift-5.10.1-release/ubuntu2004/swift-5.10.1-RELEASE/swift-5.10.1-RELEASE-ubuntu20.04.tar.gz
+tar xzf swift-5.10.1-RELEASE-ubuntu20.04.tar.gz
+cp -r swift-5.10.1-RELEASE-ubuntu20.04/usr/* /usr/
+rm -rf swift-5.10.1-RELEASE-ubuntu20.04.tar.gz swift-5.10.1-RELEASE-ubuntu20.04/
+# TODO: Move to a seperate work dir
+git clone https://github.com/llvm/llvm-project.git
+cd llvm-project
+git checkout 63bf228450b8403e0c5e828d276be47ffbcd00d0 # TODO: Keep in sync with base-clang.
+git apply ../llvmsymbol.diff --verbose
+cmake -G "Ninja" \
+    -DLIBCXX_ENABLE_SHARED=OFF \
+    -DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=ON \
+    -DLIBCXXABI_ENABLE_SHARED=OFF \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DLLVM_TARGETS_TO_BUILD=X86 \
+    -DCMAKE_C_COMPILER=clang \
+    -DCMAKE_CXX_COMPILER=clang++ \
+    -DLLVM_BUILD_TESTS=OFF \
+    -DLLVM_INCLUDE_TESTS=OFF llvm
+ninja -j$(nproc) llvm-symbolizer
+cp bin/llvm-symbolizer /usr/local/bin/llvm-symbolizer-swift
+
+cd $SRC
+rm -rf llvm-project llvmsymbol.diff
+
+# TODO: Cleanup packages
+apt-get remove --purge -y wget zlib1g-dev
+apt-get autoremove -y

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-builder/precompile_honggfuzz

@@ -0,0 +1,45 @@
+#!/bin/bash -eu
+# Copyright 2019 Google Inc.
+#
+# 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.
+#
+################################################################################
+
+echo "Precompiling honggfuzz"
+export BUILD_OSSFUZZ_STATIC=true
+
+PACKAGES=(
+    libunwind8-dev
+    libblocksruntime-dev
+    liblzma-dev
+    libiberty-dev
+    zlib1g-dev
+    pkg-config)
+
+apt-get update && apt-get install -y ${PACKAGES[@]}
+
+pushd $SRC/honggfuzz > /dev/null
+make clean
+# These CFLAGs match honggfuzz's default, with the exception of -mtune to
+# improve portability and `-D_HF_LINUX_NO_BFD` to remove assembly instructions
+# from the filenames.
+CC=clang CFLAGS="-O3 -funroll-loops -D_HF_LINUX_NO_BFD" make
+
+# libhfuzz.a will be added by CC/CXX linker directly during linking,
+# but it's defined here to satisfy the build infrastructure
+ar rcs honggfuzz.a libhfuzz/*.o libhfcommon/*.o
+popd > /dev/null
+
+apt-get remove -y --purge ${PACKAGES[@]}
+apt-get autoremove -y
+echo "Done."

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-image/Dockerfile

@@ -0,0 +1,46 @@
+# Copyright 2016 Google Inc.
+#
+# 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.
+#
+################################################################################
+
+# Base image for all other images.
+
+ARG parent_image=ubuntu:20.04@sha256:4a45212e9518f35983a976eead0de5eecc555a2f047134e9dd2cfc589076a00d
+
+FROM $parent_image
+
+ENV DEBIAN_FRONTEND noninteractive
+# Install tzadata to match ClusterFuzz
+# (https://github.com/google/oss-fuzz/issues/9280).
+
+# Use Azure mirrors for consistent apt repository access.
+RUN cp /etc/apt/sources.list /etc/apt/sources.list.backup && \
+    sed -i 's|http://archive.ubuntu.com/ubuntu/|http://azure.archive.ubuntu.com/ubuntu/|g' /etc/apt/sources.list && \
+    sed -i 's|http://security.ubuntu.com/ubuntu/|http://azure.archive.ubuntu.com/ubuntu/|g' /etc/apt/sources.list
+
+
+RUN apt-get update && \
+    apt-get upgrade -y && \
+    apt-get install -y libc6-dev binutils libgcc-9-dev tzdata locales locales-all && \
+    apt-get autoremove -y
+
+ENV OUT=/out
+ENV SRC=/src
+ENV WORK=/work
+ENV PATH="$PATH:/out"
+ENV HWASAN_OPTIONS=random_tags=0
+#set locale to utf8
+ENV LC_ALL=C.UTF-8
+
+RUN mkdir -p $OUT $SRC $WORK && chmod a+rwx $OUT $SRC $WORK

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/README.md

@@ -0,0 +1,31 @@
+# base-runner
+> Base image for fuzzer runners.
+
+```bash
+docker run -ti ghcr.io/aixcc-finals/base-runner <command> <args>
+```
+
+## Commands
+
+| Command | Description |
+|---------|-------------|
+| `reproduce <fuzzer_name> <fuzzer_options>` | build all fuzz targets and run specified one with testcase `/testcase` and given options.
+| `run_fuzzer <fuzzer_name> <fuzzer_options>` | runs specified fuzzer combining options with `.options` file |
+| `test_all.py` | runs every binary in `/out` as a fuzzer for a while to ensure it works. |
+| `coverage <fuzzer_name>` | generate a coverage report for the given fuzzer. |
+
+# Examples
+
+- *Reproduce using latest OSS-Fuzz build:*
+
+<pre>
+docker run --rm -ti -v <b><i>&lt;testcase_path&gt;</i></b>:/testcase gcr.io/oss-fuzz/<b><i>$PROJECT_NAME</i></b> reproduce <b><i>&lt;fuzzer_name&gt;</i></b>
+</pre>
+
+- *Reproduce using local source checkout:*
+
+<pre>
+docker run --rm -ti -v <b><i>&lt;source_path&gt;</i></b>:/src/<b><i>$PROJECT_NAME</i></b> \
+                    -v <b><i>&lt;testcase_path&gt;</i></b>:/testcase gcr.io/oss-fuzz/<b><i>$PROJECT_NAME</i></b> \
+                    reproduce <b><i>&lt;fuzzer_name&gt;</i></b>
+</pre>

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/bad_build_check

@@ -0,0 +1,494 @@
+#!/bin/bash -u
+# Copyright 2017 Google Inc.
+#
+# 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.
+#
+################################################################################
+
+# A minimal number of runs to test fuzz target with a non-empty input.
+MIN_NUMBER_OF_RUNS=4
+
+# The "example" target has 73 with ASan, 65 with UBSan, and 6648 with MSan.
+# Real world targets have greater values (arduinojson: 407, zlib: 664).
+# Mercurial's bdiff_fuzzer has 116 PCs when built with ASan.
+THRESHOLD_FOR_NUMBER_OF_EDGES=100
+
+# A fuzz target is supposed to have at least two functions, such as
+# LLVMFuzzerTestOneInput and an API that is being called from there.
+THRESHOLD_FOR_NUMBER_OF_FUNCTIONS=2
+
+# Threshold values for different sanitizers used by instrumentation checks.
+ASAN_CALLS_THRESHOLD_FOR_ASAN_BUILD=1000
+ASAN_CALLS_THRESHOLD_FOR_NON_ASAN_BUILD=0
+
+# The value below can definitely be higher (like 500-1000), but avoid being too
+# agressive here while still evaluating the DFT-based fuzzing approach.
+DFSAN_CALLS_THRESHOLD_FOR_DFSAN_BUILD=100
+DFSAN_CALLS_THRESHOLD_FOR_NON_DFSAN_BUILD=0
+
+MSAN_CALLS_THRESHOLD_FOR_MSAN_BUILD=1000
+# Some engines (e.g. honggfuzz) may make a very small number of calls to msan
+# for memory poisoning.
+MSAN_CALLS_THRESHOLD_FOR_NON_MSAN_BUILD=3
+
+# Usually, a non UBSan build (e.g. ASan) has 165 calls to UBSan runtime. The
+# majority of targets built with UBSan have 200+ UBSan calls, but there are
+# some very small targets that may have < 200 UBSan calls even in a UBSan build.
+# Use the threshold value of 168 (slightly > 165) for UBSan build.
+UBSAN_CALLS_THRESHOLD_FOR_UBSAN_BUILD=168
+
+# It would be risky to use the threshold value close to 165 for non UBSan build,
+# as UBSan runtime may change any time and thus we could have different number
+# of calls to UBSan runtime even in ASan build. With that, we use the threshold
+# value of 200 that would detect unnecessary UBSan instrumentation in the vast
+# majority of targets, except of a handful very small ones, which would not be
+# a big concern either way as the overhead for them would not be significant.
+UBSAN_CALLS_THRESHOLD_FOR_NON_UBSAN_BUILD=200
+
+# ASan builds on i386 generally have about 250 UBSan runtime calls.
+if [[ $ARCHITECTURE == 'i386' ]]
+then
+  UBSAN_CALLS_THRESHOLD_FOR_NON_UBSAN_BUILD=280
+fi
+
+
+# Verify that the given fuzz target is correctly built to run with a particular
+# engine.
+function check_engine {
+  local FUZZER=$1
+  local FUZZER_NAME=$(basename $FUZZER)
+  local FUZZER_OUTPUT="/tmp/$FUZZER_NAME.output"
+  local CHECK_FAILED=0
+
+  if [[ "$FUZZING_ENGINE" == libfuzzer ]]; then
+    # Store fuzz target's output into a temp file to be used for further checks.
+    $FUZZER -seed=1337 -runs=$MIN_NUMBER_OF_RUNS &>$FUZZER_OUTPUT
+    CHECK_FAILED=$(egrep "ERROR: no interesting inputs were found. Is the code instrumented" -c $FUZZER_OUTPUT)
+    if (( $CHECK_FAILED > 0 )); then
+      echo "BAD BUILD: $FUZZER does not seem to have coverage instrumentation."
+      cat $FUZZER_OUTPUT
+      # Bail out as the further check does not make any sense, there are 0 PCs.
+      return 1
+    fi
+
+    local NUMBER_OF_EDGES=$(grep -Po "INFO: Loaded [[:digit:]]+ module.*\(.*(counters|guards)\):[[:space:]]+\K[[:digit:]]+" $FUZZER_OUTPUT)
+
+    # If a fuzz target fails to start, grep won't find anything, so bail out early to let check_startup_crash deal with it.
+    [[ -z "$NUMBER_OF_EDGES" ]] && return
+
+    if (( $NUMBER_OF_EDGES < $THRESHOLD_FOR_NUMBER_OF_EDGES )); then
+      echo "BAD BUILD: $FUZZER seems to have only partial coverage instrumentation."
+    fi
+  elif [[ "$FUZZING_ENGINE" == afl ]]; then
+    AFL_FORKSRV_INIT_TMOUT=30000 AFL_NO_UI=1 SKIP_SEED_CORPUS=1 timeout --preserve-status -s INT 35s run_fuzzer $FUZZER_NAME &>$FUZZER_OUTPUT
+    CHECK_PASSED=$(egrep "All set and ready to roll" -c $FUZZER_OUTPUT)
+    if (( $CHECK_PASSED == 0 )); then
+      echo "BAD BUILD: fuzzing $FUZZER with afl-fuzz failed."
+      cat $FUZZER_OUTPUT
+      return 1
+    fi
+  elif [[ "$FUZZING_ENGINE" == honggfuzz ]]; then
+    SKIP_SEED_CORPUS=1 timeout --preserve-status -s INT 20s run_fuzzer $FUZZER_NAME &>$FUZZER_OUTPUT
+    CHECK_PASSED=$(egrep "^Sz:[0-9]+ Tm:[0-9]+" -c $FUZZER_OUTPUT)
+    if (( $CHECK_PASSED == 0 )); then
+      echo "BAD BUILD: fuzzing $FUZZER with honggfuzz failed."
+      cat $FUZZER_OUTPUT
+      return 1
+    fi
+  elif [[ "$FUZZING_ENGINE" == dataflow ]]; then
+    $FUZZER &> $FUZZER_OUTPUT
+    local NUMBER_OF_FUNCTIONS=$(grep -Po "INFO:\s+\K[[:digit:]]+(?=\s+instrumented function.*)" $FUZZER_OUTPUT)
+    [[ -z "$NUMBER_OF_FUNCTIONS" ]] && NUMBER_OF_FUNCTIONS=0
+    if (( $NUMBER_OF_FUNCTIONS < $THRESHOLD_FOR_NUMBER_OF_FUNCTIONS )); then
+      echo "BAD BUILD: $FUZZER does not seem to be properly built in 'dataflow' config."
+      cat $FUZZER_OUTPUT
+      return 1
+    fi
+  elif [[ "$FUZZING_ENGINE" == centipede \
+          && ("${HELPER:-}" == True || "$SANITIZER" == none ) ]]; then
+    # Performs run test on unsanitized binaries with auxiliary sanitized
+    # binaries if they are built with helper.py.
+    # Performs run test on unsanitized binaries without auxiliary sanitized
+    # binaries if they are from trial build and production build.
+    # TODO(Dongge): Support run test with sanitized binaries for trial and
+    # production build.
+    SKIP_SEED_CORPUS=1 timeout --preserve-status -s INT 20s run_fuzzer $FUZZER_NAME &>$FUZZER_OUTPUT
+    CHECK_PASSED=$(egrep "\[S0.0] begin-fuzz: ft: 0 corp: 0/0" -c $FUZZER_OUTPUT)
+    if (( $CHECK_PASSED == 0 )); then
+      echo "BAD BUILD: fuzzing $FUZZER with centipede failed."
+      cat $FUZZER_OUTPUT
+      return 1
+    fi
+  fi
+  
+  return 0
+}
+
+# Verify that the given fuzz target has been built properly and works.
+function check_startup_crash {
+  local FUZZER=$1
+  local FUZZER_NAME=$(basename $FUZZER)
+  local FUZZER_OUTPUT="/tmp/$FUZZER_NAME.output"
+  local CHECK_PASSED=0
+
+  if [[ "$FUZZING_ENGINE" = libfuzzer ]]; then
+    # Skip seed corpus as there is another explicit check that uses seed corpora.
+    SKIP_SEED_CORPUS=1 run_fuzzer $FUZZER_NAME -seed=1337 -runs=$MIN_NUMBER_OF_RUNS &>$FUZZER_OUTPUT
+    CHECK_PASSED=$(egrep "Done $MIN_NUMBER_OF_RUNS runs" -c $FUZZER_OUTPUT)
+  elif [[ "$FUZZING_ENGINE" = afl ]]; then
+    AFL_FORKSRV_INIT_TMOUT=30000 AFL_NO_UI=1 SKIP_SEED_CORPUS=1 timeout --preserve-status -s INT 35s run_fuzzer $FUZZER_NAME &>$FUZZER_OUTPUT
+    if [ $(egrep "target binary (crashed|terminated)" -c $FUZZER_OUTPUT) -eq 0 ]; then
+      CHECK_PASSED=1
+    fi
+  elif [[ "$FUZZING_ENGINE" = dataflow ]]; then
+    # TODO(https://github.com/google/oss-fuzz/issues/1632): add check for
+    # binaries compiled with dataflow engine when the interface becomes stable.
+    CHECK_PASSED=1
+  else
+    # TODO: add checks for another fuzzing engines if possible.
+    CHECK_PASSED=1
+  fi
+
+  if [ "$CHECK_PASSED" -eq "0" ]; then
+    echo "BAD BUILD: $FUZZER seems to have either startup crash or exit:"
+    cat $FUZZER_OUTPUT
+    return 1
+  fi
+
+  return 0
+}
+
+# Mixed sanitizers check for ASan build.
+function check_asan_build {
+  local FUZZER=$1
+  local ASAN_CALLS=$2
+  local DFSAN_CALLS=$3
+  local MSAN_CALLS=$4
+  local UBSAN_CALLS=$5
+
+  # Perform all the checks for more detailed error message.
+  if (( $ASAN_CALLS < $ASAN_CALLS_THRESHOLD_FOR_ASAN_BUILD )); then
+    echo "BAD BUILD: $FUZZER does not seem to be compiled with ASan."
+    return 1
+  fi
+
+  if (( $DFSAN_CALLS > $DFSAN_CALLS_THRESHOLD_FOR_NON_DFSAN_BUILD )); then
+    echo "BAD BUILD: ASan build of $FUZZER seems to be compiled with DFSan."
+    return 1
+  fi
+
+  if (( $MSAN_CALLS > $MSAN_CALLS_THRESHOLD_FOR_NON_MSAN_BUILD )); then
+    echo "BAD BUILD: ASan build of $FUZZER seems to be compiled with MSan."
+    return 1
+  fi
+
+  if (( $UBSAN_CALLS > $UBSAN_CALLS_THRESHOLD_FOR_NON_UBSAN_BUILD )); then
+    echo "BAD BUILD: ASan build of $FUZZER seems to be compiled with UBSan."
+    return 1
+  fi
+
+  return 0
+}
+
+# Mixed sanitizers check for DFSan build.
+function check_dfsan_build {
+  local FUZZER=$1
+  local ASAN_CALLS=$2
+  local DFSAN_CALLS=$3
+  local MSAN_CALLS=$4
+  local UBSAN_CALLS=$5
+
+  # Perform all the checks for more detailed error message.
+  if (( $ASAN_CALLS > $ASAN_CALLS_THRESHOLD_FOR_NON_ASAN_BUILD )); then
+    echo "BAD BUILD: DFSan build of $FUZZER seems to be compiled with ASan."
+    return 1
+  fi
+
+  if (( $DFSAN_CALLS < $DFSAN_CALLS_THRESHOLD_FOR_DFSAN_BUILD )); then
+    echo "BAD BUILD: $FUZZER does not seem to be compiled with DFSan."
+    return 1
+  fi
+
+  if (( $MSAN_CALLS > $MSAN_CALLS_THRESHOLD_FOR_NON_MSAN_BUILD )); then
+    echo "BAD BUILD: ASan build of $FUZZER seems to be compiled with MSan."
+    return 1
+  fi
+
+  if (( $UBSAN_CALLS > $UBSAN_CALLS_THRESHOLD_FOR_NON_UBSAN_BUILD )); then
+    echo "BAD BUILD: ASan build of $FUZZER seems to be compiled with UBSan."
+    return 1
+  fi
+
+  return 0
+}
+
+
+# Mixed sanitizers check for MSan build.
+function check_msan_build {
+  local FUZZER=$1
+  local ASAN_CALLS=$2
+  local DFSAN_CALLS=$3
+  local MSAN_CALLS=$4
+  local UBSAN_CALLS=$5
+
+  # Perform all the checks for more detailed error message.
+  if (( $ASAN_CALLS > $ASAN_CALLS_THRESHOLD_FOR_NON_ASAN_BUILD )); then
+    echo "BAD BUILD: MSan build of $FUZZER seems to be compiled with ASan."
+    return 1
+  fi
+
+  if (( $DFSAN_CALLS > $DFSAN_CALLS_THRESHOLD_FOR_NON_DFSAN_BUILD )); then
+    echo "BAD BUILD: MSan build of $FUZZER seems to be compiled with DFSan."
+    return 1
+  fi
+
+  if (( $MSAN_CALLS < $MSAN_CALLS_THRESHOLD_FOR_MSAN_BUILD )); then
+    echo "BAD BUILD: $FUZZER does not seem to be compiled with MSan."
+    return 1
+  fi
+
+  if (( $UBSAN_CALLS > $UBSAN_CALLS_THRESHOLD_FOR_NON_UBSAN_BUILD )); then
+    echo "BAD BUILD: MSan build of $FUZZER seems to be compiled with UBSan."
+    return 1
+  fi
+
+  return 0
+}
+
+# Mixed sanitizers check for UBSan build.
+function check_ubsan_build {
+  local FUZZER=$1
+  local ASAN_CALLS=$2
+  local DFSAN_CALLS=$3
+  local MSAN_CALLS=$4
+  local UBSAN_CALLS=$5
+
+  if [[ "$FUZZING_ENGINE" != libfuzzer ]]; then
+    # Ignore UBSan checks for fuzzing engines other than libFuzzer because:
+    # A) we (probably) are not going to use those with UBSan
+    # B) such builds show indistinguishable number of calls to UBSan
+    return 0
+  fi
+
+  # Perform all the checks for more detailed error message.
+  if (( $ASAN_CALLS > $ASAN_CALLS_THRESHOLD_FOR_NON_ASAN_BUILD )); then
+    echo "BAD BUILD: UBSan build of $FUZZER seems to be compiled with ASan."
+    return 1
+  fi
+
+  if (( $DFSAN_CALLS > $DFSAN_CALLS_THRESHOLD_FOR_NON_DFSAN_BUILD )); then
+    echo "BAD BUILD: UBSan build of $FUZZER seems to be compiled with DFSan."
+    return 1
+  fi
+
+  if (( $MSAN_CALLS > $MSAN_CALLS_THRESHOLD_FOR_NON_MSAN_BUILD )); then
+    echo "BAD BUILD: UBSan build of $FUZZER seems to be compiled with MSan."
+    return 1
+  fi
+
+  if (( $UBSAN_CALLS < $UBSAN_CALLS_THRESHOLD_FOR_UBSAN_BUILD )); then
+    echo "BAD BUILD: $FUZZER does not seem to be compiled with UBSan."
+    return 1
+  fi
+}
+
+# Verify that the given fuzz target is compiled with correct sanitizer.
+function check_mixed_sanitizers {
+  local FUZZER=$1
+  local result=0
+  local CALL_INSN=
+
+  if [ "${FUZZING_LANGUAGE:-}" = "jvm" ]; then
+    # Sanitizer runtime is linked into the Jazzer driver, so this check does not
+    # apply.
+    return 0
+  fi
+
+  if [ "${FUZZING_LANGUAGE:-}" = "javascript" ]; then
+    # Jazzer.js currently does not support using sanitizers with native Node.js addons.
+    # This is not relevant anyways since supporting this will be done by preloading
+    # the sanitizers in the wrapper script starting Jazzer.js.
+    return 0
+  fi
+
+  if [ "${FUZZING_LANGUAGE:-}" = "python" ]; then
+    # Sanitizer runtime is loaded via LD_PRELOAD, so this check does not apply.
+    return 0
+  fi
+
+  # For fuzztest fuzzers point to the binary instead of launcher script.
+  if [[ $FUZZER == *"@"* ]]; then
+    FUZZER=(${FUZZER//@/ }[0])
+  fi
+
+  CALL_INSN=
+  if [[ $ARCHITECTURE == "x86_64" ]]
+  then
+    CALL_INSN="callq?\s+[0-9a-f]+\s+<"
+  elif [[ $ARCHITECTURE == "i386" ]]
+  then
+    CALL_INSN="call\s+[0-9a-f]+\s+<"
+  elif [[ $ARCHITECTURE == "aarch64" ]]
+  then
+    CALL_INSN="bl\s+[0-9a-f]+\s+<"
+  else
+    echo "UNSUPPORTED ARCHITECTURE"
+    exit 1
+  fi
+  local ASAN_CALLS=$(objdump -dC $FUZZER | egrep "${CALL_INSN}__asan" -c)
+  local DFSAN_CALLS=$(objdump -dC $FUZZER | egrep "${CALL_INSN}__dfsan" -c)
+  local MSAN_CALLS=$(objdump -dC $FUZZER | egrep "${CALL_INSN}__msan" -c)
+  local UBSAN_CALLS=$(objdump -dC $FUZZER | egrep "${CALL_INSN}__ubsan" -c)
+
+
+  if [[ "$SANITIZER" = address ]]; then
+    check_asan_build $FUZZER $ASAN_CALLS $DFSAN_CALLS $MSAN_CALLS $UBSAN_CALLS
+    result=$?
+  elif [[ "$SANITIZER" = dataflow ]]; then
+    check_dfsan_build $FUZZER $ASAN_CALLS $DFSAN_CALLS $MSAN_CALLS $UBSAN_CALLS
+    result=$?
+  elif [[ "$SANITIZER" = memory ]]; then
+    check_msan_build $FUZZER $ASAN_CALLS $DFSAN_CALLS $MSAN_CALLS $UBSAN_CALLS
+    result=$?
+  elif [[ "$SANITIZER" = undefined ]]; then
+    check_ubsan_build $FUZZER $ASAN_CALLS $DFSAN_CALLS $MSAN_CALLS $UBSAN_CALLS
+    result=$?
+  elif [[ "$SANITIZER" = thread ]]; then
+    # TODO(metzman): Implement this.
+    result=0
+  fi
+
+  return $result
+}
+
+# Verify that the given fuzz target doesn't crash on the seed corpus.
+function check_seed_corpus {
+  local FUZZER=$1
+  local FUZZER_NAME="$(basename $FUZZER)"
+  local FUZZER_OUTPUT="/tmp/$FUZZER_NAME.output"
+
+  if [[ "$FUZZING_ENGINE" != libfuzzer ]]; then
+    return 0
+  fi
+
+  # Set up common fuzzing arguments, otherwise "run_fuzzer" errors out.
+  if [ -z "$FUZZER_ARGS" ]; then
+    export FUZZER_ARGS="-rss_limit_mb=2560 -timeout=25"
+  fi
+
+  bash -c "run_fuzzer $FUZZER_NAME -runs=0" &> $FUZZER_OUTPUT
+
+  # Don't output anything if fuzz target hasn't crashed.
+  if [ $? -ne 0 ]; then
+    echo "BAD BUILD: $FUZZER has a crashing input in its seed corpus:"
+    cat $FUZZER_OUTPUT
+    return 1
+  fi
+
+  return 0
+}
+
+function check_architecture {
+  local FUZZER=$1
+  local FUZZER_NAME=$(basename $FUZZER)
+
+  if [ "${FUZZING_LANGUAGE:-}" = "jvm" ]; then
+    # The native dependencies of a JVM project are not packaged, but loaded
+    # dynamically at runtime and thus cannot be checked here.
+    return 0;
+  fi
+
+  if [ "${FUZZING_LANGUAGE:-}" = "javascript" ]; then
+    # Jazzer.js fuzzers are wrapper scripts that start the fuzz target with
+    # the Jazzer.js CLI.
+    return 0;
+  fi
+
+  if [ "${FUZZING_LANGUAGE:-}" = "python" ]; then
+    FUZZER=${FUZZER}.pkg
+  fi
+
+  # For fuzztest fuzzers point to the binary instead of launcher script.
+  if [[ $FUZZER == *"@"* ]]; then
+    FUZZER=(${FUZZER//@/ }[0])
+  fi
+
+  FILE_OUTPUT=$(file $FUZZER)
+  if [[ $ARCHITECTURE == "x86_64" ]]
+  then
+    echo $FILE_OUTPUT | grep "x86-64" > /dev/null
+  elif [[ $ARCHITECTURE == "i386" ]]
+  then
+    echo $FILE_OUTPUT | grep "80386" > /dev/null
+  elif [[ $ARCHITECTURE == "aarch64" ]]
+  then
+    echo $FILE_OUTPUT | grep "aarch64" > /dev/null
+  else
+    echo "UNSUPPORTED ARCHITECTURE"
+    return 1
+  fi
+  result=$?
+  if [[ $result != 0 ]]
+  then
+    echo "BAD BUILD $FUZZER is not built for architecture: $ARCHITECTURE"
+    echo "file command output: $FILE_OUTPUT"
+    echo "check_mixed_sanitizers test will fail."
+  fi
+  return $result
+}
+
+function main {
+  local FUZZER=$1
+  local AUXILIARY_FUZZER=${2:-}
+  local checks_failed=0
+  local result=0
+
+  export RUN_FUZZER_MODE="batch"
+  check_engine $FUZZER
+  result=$?
+  checks_failed=$(( $checks_failed + $result ))
+
+  check_architecture $FUZZER
+  result=$?
+  checks_failed=$(( $checks_failed + $result ))
+
+  if [[ "$FUZZING_ENGINE" == centipede \
+        && "$SANITIZER" != none && "${HELPER:-}" == True ]]; then
+    check_mixed_sanitizers $AUXILIARY_FUZZER
+   else
+    check_mixed_sanitizers $FUZZER
+  fi
+  result=$?
+  checks_failed=$(( $checks_failed + $result ))
+
+  check_startup_crash $FUZZER
+  result=$?
+  checks_failed=$(( $checks_failed + $result ))
+
+  # TODO: re-enable after introducing bug auto-filing for bad builds.
+  # check_seed_corpus $FUZZER
+  return $checks_failed
+}
+
+
+if [ $# -ne 1 -a $# -ne 2 ]; then
+  echo "Usage: $0 <fuzz_target_binary> [<auxiliary_binary>]"
+  exit 1
+fi
+
+# Fuzz target path.
+FUZZER=$1
+AUXILIARY_FUZZER=${2:-}
+
+main $FUZZER $AUXILIARY_FUZZER
+exit $?

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/coverage

@@ -0,0 +1,549 @@
+#!/bin/bash -u
+# Copyright 2018 Google Inc.
+#
+# 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.
+#
+################################################################################
+cd $OUT
+
+if (( $# > 0 )); then
+  FUZZ_TARGETS="$@"
+else
+  FUZZ_TARGETS="$(find . -maxdepth 1 -type f -executable -printf '%P\n' | \
+      grep -v -x -F \
+      -e 'llvm-symbolizer' \
+      -e 'jazzer_agent_deploy.jar' \
+      -e 'jazzer_driver' \
+      -e 'jazzer_driver_with_sanitizer' \
+      -e 'sanitizer_with_fuzzer.so')"
+fi
+
+COVERAGE_OUTPUT_DIR=${COVERAGE_OUTPUT_DIR:-$OUT}
+
+DUMPS_DIR="$COVERAGE_OUTPUT_DIR/dumps"
+FUZZERS_COVERAGE_DUMPS_DIR="$DUMPS_DIR/fuzzers_coverage"
+MERGED_COVERAGE_DIR="$COVERAGE_OUTPUT_DIR/merged_coverage"
+FUZZER_STATS_DIR="$COVERAGE_OUTPUT_DIR/fuzzer_stats"
+TEXTCOV_REPORT_DIR="$COVERAGE_OUTPUT_DIR/textcov_reports"
+LOGS_DIR="$COVERAGE_OUTPUT_DIR/logs"
+REPORT_ROOT_DIR="$COVERAGE_OUTPUT_DIR/report"
+REPORT_BY_TARGET_ROOT_DIR="$COVERAGE_OUTPUT_DIR/report_target"
+PLATFORM=linux
+REPORT_PLATFORM_DIR="$COVERAGE_OUTPUT_DIR/report/$PLATFORM"
+
+for directory in $DUMPS_DIR $FUZZER_STATS_DIR $LOGS_DIR $REPORT_ROOT_DIR $TEXTCOV_REPORT_DIR\
+                 $REPORT_PLATFORM_DIR $REPORT_BY_TARGET_ROOT_DIR $FUZZERS_COVERAGE_DUMPS_DIR $MERGED_COVERAGE_DIR; do
+  rm -rf $directory
+  mkdir -p $directory
+done
+
+PROFILE_FILE="$DUMPS_DIR/merged.profdata"
+SUMMARY_FILE="$REPORT_PLATFORM_DIR/summary.json"
+COVERAGE_TARGET_FILE="$FUZZER_STATS_DIR/coverage_targets.txt"
+
+# Use path mapping, as $SRC directory from the builder is copied into $OUT/$SRC.
+PATH_EQUIVALENCE_ARGS="-path-equivalence=/,$OUT"
+
+# It's important to use $COVERAGE_EXTRA_ARGS as the last argument, because it
+# can contain paths to source files / directories which are positional args.
+LLVM_COV_COMMON_ARGS="$PATH_EQUIVALENCE_ARGS \
+    -ignore-filename-regex=.*src/libfuzzer/.* $COVERAGE_EXTRA_ARGS"
+
+# Options to extract branch coverage.
+BRANCH_COV_ARGS="--show-branches=count --show-expansions"
+
+# Timeout for running a single fuzz target.
+TIMEOUT=1h
+
+# This will be used by llvm-cov command to generate the actual report.
+objects=""
+
+# Number of CPUs available, this is needed for running tests in parallel.
+# Set the max number of parallel jobs to be the CPU count and a max of 10.
+NPROC=$(nproc)
+MAX_PARALLEL_COUNT=10
+
+CORPUS_DIR=${CORPUS_DIR:-"/corpus"}
+
+function run_fuzz_target {
+  local target=$1
+
+  # '%1m' will produce separate dump files for every object. For example, if a
+  # fuzz target loads a shared library, we will have dumps for both of them.
+  local profraw_file="$DUMPS_DIR/$target.%1m.profraw"
+  local profraw_file_mask="$DUMPS_DIR/$target.*.profraw"
+  local profdata_file="$DUMPS_DIR/$target.profdata"
+  local corpus_real="$CORPUS_DIR/${target}"
+
+  # -merge=1 requires an output directory, create a new, empty dir for that.
+  local corpus_dummy="$OUT/dummy_corpus_dir_for_${target}"
+  rm -rf $corpus_dummy && mkdir -p $corpus_dummy
+
+  # Use -merge=1 instead of -runs=0 because merge is crash resistant and would
+  # let to get coverage using all corpus files even if there are crash inputs.
+  # Merge should not introduce any significant overhead compared to -runs=0,
+  # because (A) corpuses are already minimized; (B) we do not use sancov, and so
+  # libFuzzer always finishes merge with an empty output dir.
+  # Use 100s timeout instead of 25s as code coverage builds can be very slow.
+  local args="-merge=1 -timeout=100 $corpus_dummy $corpus_real"
+
+  export LLVM_PROFILE_FILE=$profraw_file
+  timeout $TIMEOUT $OUT/$target $args &> $LOGS_DIR/$target.log
+  if (( $? != 0 )); then
+    echo "Error occured while running $target:"
+    cat $LOGS_DIR/$target.log
+  fi
+
+  rm -rf $corpus_dummy
+  if (( $(du -c $profraw_file_mask | tail -n 1 | cut -f 1) == 0 )); then
+    # Skip fuzz targets that failed to produce profile dumps.
+    return 0
+  fi
+
+  # If necessary translate to latest profraw version.
+  if [[ $target == *"@"* ]]; then
+    # Extract fuzztest binary name from fuzztest wrapper script.
+    target=(${target//@/ }[0])
+  fi
+  profraw_update.py $OUT/$target -i $profraw_file_mask
+  llvm-profdata merge -j=1 -sparse $profraw_file_mask -o $profdata_file
+
+  # Delete unnecessary and (potentially) large .profraw files.
+  rm $profraw_file_mask
+
+  shared_libraries=$(coverage_helper shared_libs -build-dir=$OUT -object=$target)
+
+  llvm-cov export -summary-only -instr-profile=$profdata_file -object=$target \
+      $shared_libraries $LLVM_COV_COMMON_ARGS > $FUZZER_STATS_DIR/$target.json
+
+  # For introspector.
+  llvm-cov show -instr-profile=$profdata_file -object=$target -line-coverage-gt=0 $shared_libraries $BRANCH_COV_ARGS $LLVM_COV_COMMON_ARGS > ${TEXTCOV_REPORT_DIR}/$target.covreport
+}
+
+function run_go_fuzz_target {
+  local target=$1
+
+  echo "Running go target $target"
+  export FUZZ_CORPUS_DIR="$CORPUS_DIR/${target}/"
+  export FUZZ_PROFILE_NAME="$DUMPS_DIR/$target.perf"
+
+  # setup for native go fuzzers
+  cd $OUT
+  mkdir -p "testdata/fuzz/${target}"
+  cp -r "${FUZZ_CORPUS_DIR}" "testdata/fuzz/"
+
+  # rewrite libFuzzer corpus to Std Go corpus if native fuzzing
+  grep "TestFuzzCorpus" $target > /dev/null 2>&1 && $SYSGOPATH/bin/convertcorpus $target "testdata/fuzz/${target}"
+  cd -
+
+  timeout $TIMEOUT $OUT/$target -test.coverprofile $DUMPS_DIR/$target.profdata &> $LOGS_DIR/$target.log
+  if (( $? != 0 )); then
+    echo "Error occured while running $target:"
+    cat $LOGS_DIR/$target.log
+  fi
+
+  # cleanup after native go fuzzers
+  rm -r "${OUT}/testdata/fuzz/${target}"
+
+  # The Go 1.18 fuzzers are renamed to "*_fuzz_.go" during "infra/helper.py build_fuzzers".
+  # They are are therefore refered to as "*_fuzz_.go" in the profdata files.
+  # Since the copies named "*_fuzz_.go" do not exist in the file tree during
+  # the coverage build, we change the references in the .profdata files
+  # to the original file names.
+  #sed -i "s/_test.go_fuzz_.go/_test.go/g" $DUMPS_DIR/$target.profdata
+  # translate from golangish paths to current absolute paths
+  cat $OUT/$target.gocovpath | while read i; do sed -i $i $DUMPS_DIR/$target.profdata; done
+  # cf PATH_EQUIVALENCE_ARGS
+  sed -i 's=/='$OUT'/=' $DUMPS_DIR/$target.profdata
+  $SYSGOPATH/bin/gocovsum $DUMPS_DIR/$target.profdata > $FUZZER_STATS_DIR/$target.json
+}
+
+function run_python_fuzz_target {
+  local target=$1
+  local zipped_sources="$DUMPS_DIR/$target.deps.zip"
+  local corpus_real="$CORPUS_DIR/${target}"
+  # Write dummy stats file
+  echo "{}" > "$FUZZER_STATS_DIR/$target.json"
+
+  # Run fuzzer
+  $OUT/$target $corpus_real -atheris_runs=$(ls -la $corpus_real | wc -l) > $LOGS_DIR/$target.log 2>&1
+  if (( $? != 0 )); then
+    echo "Error happened getting coverage of $target"
+    echo "This is likely because Atheris did not exit gracefully"
+    cat $LOGS_DIR/$target.log
+    return 0
+  fi
+  mv .coverage $OUT/.coverage_$target
+}
+
+function run_java_fuzz_target {
+  local target=$1
+
+  local exec_file="$DUMPS_DIR/$target.exec"
+  local class_dump_dir="$DUMPS_DIR/${target}_classes/"
+  mkdir "$class_dump_dir"
+  local corpus_real="$CORPUS_DIR/${target}"
+
+  # -merge=1 requires an output directory, create a new, empty dir for that.
+  local corpus_dummy="$OUT/dummy_corpus_dir_for_${target}"
+  rm -rf $corpus_dummy && mkdir -p $corpus_dummy
+
+  # Use 100s timeout instead of 25s as code coverage builds can be very slow.
+  local jacoco_args="destfile=$exec_file,classdumpdir=$class_dump_dir,excludes=com.code_intelligence.jazzer.*\\:com.sun.tools.attach.VirtualMachine"
+  local args="-merge=1 -timeout=100 --nohooks \
+      --additional_jvm_args=-javaagent\\:/opt/jacoco-agent.jar=$jacoco_args \
+      $corpus_dummy $corpus_real"
+
+  timeout $TIMEOUT $OUT/$target $args &> $LOGS_DIR/$target.log
+  if (( $? != 0 )); then
+    echo "Error occured while running $target:"
+    cat $LOGS_DIR/$target.log
+  fi
+
+  if (( $(du -c $exec_file | tail -n 1 | cut -f 1) == 0 )); then
+    # Skip fuzz targets that failed to produce .exec files.
+    echo "$target failed to produce .exec file."
+    return 0
+  fi
+
+  # Generate XML report only as input to jacoco_report_converter.
+  # Source files are not needed for the summary.
+  local xml_report="$DUMPS_DIR/${target}.xml"
+  local summary_file="$FUZZER_STATS_DIR/$target.json"
+  java -jar /opt/jacoco-cli.jar report $exec_file \
+      --xml $xml_report \
+      --classfiles $class_dump_dir
+
+  # Write llvm-cov summary file.
+  jacoco_report_converter.py $xml_report $summary_file
+}
+
+function run_javascript_fuzz_target {
+  local target=$1
+  local corpus_real="$CORPUS_DIR/${target}"
+
+  # -merge=1 requires an output directory, create a new, empty dir for that.
+  local corpus_dummy="$OUT/dummy_corpus_dir_for_${target}"
+  rm -rf $corpus_dummy && mkdir -p $corpus_dummy
+
+  # IstanbulJS currently does not work when the tested program creates
+  # subprocesses. For this reason, we first minimize the corpus removing
+  # any crashing inputs so that we can report source-based code coverage
+  # with a single sweep over the minimized corpus
+  local merge_args="-merge=1 -timeout=100 $corpus_dummy $corpus_real"
+  timeout $TIMEOUT $OUT/$target $merge_args &> $LOGS_DIR/$target.log
+
+  # nyc saves the coverage reports in a directory with the default name "coverage"
+  local coverage_dir="$DUMPS_DIR/coverage_dir_for_${target}"
+  rm -rf $coverage_dir && mkdir -p $coverage_dir
+
+  local nyc_json_coverage_file="$coverage_dir/coverage-final.json"
+  local nyc_json_summary_file="$coverage_dir/coverage-summary.json"
+
+  local args="-runs=0 $corpus_dummy"
+  local jazzerjs_args="--coverage --coverageDirectory $coverage_dir --coverageReporters json --coverageReporters json-summary"
+
+  JAZZERJS_EXTRA_ARGS=$jazzerjs_args $OUT/$target $args &> $LOGS_DIR/$target.log
+
+  if (( $? != 0 )); then
+    echo "Error occured while running $target:"
+    cat $LOGS_DIR/$target.log
+  fi
+
+  if [ ! -s $nyc_json_coverage_file ]; then
+    # Skip fuzz targets that failed to produce coverage-final.json file.
+    echo "$target failed to produce coverage-final.json file."
+    return 0
+  fi
+
+  cp $nyc_json_coverage_file $FUZZERS_COVERAGE_DUMPS_DIR/$target.json
+
+  local summary_file="$FUZZER_STATS_DIR/$target.json"
+
+  nyc_report_converter.py $nyc_json_summary_file $summary_file
+}
+
+function generate_html {
+  local profdata=$1
+  local shared_libraries=$2
+  local objects=$3
+  local output_dir=$4
+
+  rm -rf "$output_dir"
+  mkdir -p "$output_dir/$PLATFORM"
+
+  local llvm_cov_args="-instr-profile=$profdata $objects $LLVM_COV_COMMON_ARGS"
+  llvm-cov show -format=html -output-dir=$output_dir -Xdemangler rcfilt $llvm_cov_args
+
+  # Export coverage summary in JSON format.
+  local summary_file=$output_dir/$PLATFORM/summary.json
+
+  llvm-cov export -summary-only $llvm_cov_args > $summary_file
+
+  coverage_helper -v post_process -src-root-dir=/ -summary-file=$summary_file \
+      -output-dir=$output_dir $PATH_EQUIVALENCE_ARGS
+}
+
+export SYSGOPATH=$GOPATH
+export GOPATH=$OUT/$GOPATH
+# Run each fuzz target, generate raw coverage dumps.
+for fuzz_target in $FUZZ_TARGETS; do
+  # Test if fuzz target is a golang one.
+  if [[ $FUZZING_LANGUAGE == "go" ]]; then
+    # Continue if not a fuzz target.
+    if [[ $FUZZING_ENGINE != "none" ]]; then
+      grep "FUZZ_CORPUS_DIR" $fuzz_target > /dev/null 2>&1 || grep "testing\.T" $fuzz_target > /dev/null 2>&1 || continue
+    fi
+    # Log the target in the targets file.
+    echo ${fuzz_target} >> $COVERAGE_TARGET_FILE
+
+    # Run the coverage collection.
+    run_go_fuzz_target $fuzz_target &
+  elif [[ $FUZZING_LANGUAGE == "python" ]]; then
+    echo "Entering python fuzzing"
+    # Log the target in the targets file.
+    echo ${fuzz_target} >> $COVERAGE_TARGET_FILE
+
+    # Run the coverage collection.
+    run_python_fuzz_target $fuzz_target
+  elif [[ $FUZZING_LANGUAGE == "jvm" ]]; then
+    # Continue if not a fuzz target.
+    if [[ $FUZZING_ENGINE != "none" ]]; then
+      grep "LLVMFuzzerTestOneInput" $fuzz_target > /dev/null 2>&1 || continue
+    fi
+
+    echo "Running $fuzz_target"
+    # Log the target in the targets file.
+    echo ${fuzz_target} >> $COVERAGE_TARGET_FILE
+
+    # Run the coverage collection.
+    run_java_fuzz_target $fuzz_target &
+  elif [[ $FUZZING_LANGUAGE == "javascript" ]]; then
+    # Continue if not a fuzz target.
+    if [[ $FUZZING_ENGINE != "none" ]]; then
+      grep "LLVMFuzzerTestOneInput" $fuzz_target > /dev/null 2>&1 || continue
+    fi
+
+    echo "Running $fuzz_target"
+    # Log the target in the targets file.
+    echo ${fuzz_target} >> $COVERAGE_TARGET_FILE
+
+    # Run the coverage collection.
+    run_javascript_fuzz_target $fuzz_target &
+  else
+    # Continue if not a fuzz target.
+    if [[ $FUZZING_ENGINE != "none" ]]; then
+      grep "LLVMFuzzerTestOneInput" $fuzz_target > /dev/null 2>&1 || continue
+    fi
+
+    echo "Running $fuzz_target"
+    # Log the target in the targets file.
+    echo ${fuzz_target} >> $COVERAGE_TARGET_FILE
+
+    # Run the coverage collection.
+    run_fuzz_target $fuzz_target &
+
+    # Rewrite object if its a FUZZTEST target
+    if [[ $fuzz_target == *"@"* ]]; then
+      # Extract fuzztest binary name from fuzztest wrapper script.
+      fuzz_target=(${fuzz_target//@/ }[0])
+    fi
+    if [[ -z $objects ]]; then
+      # The first object needs to be passed without -object= flag.
+      objects="$fuzz_target"
+    else
+      objects="$objects -object=$fuzz_target"
+    fi
+  fi
+
+
+  # Limit the number of processes to be spawned.
+  n_child_proc=$(jobs -rp | wc -l)
+  while [[ "$n_child_proc" -eq "$NPROC" || "$n_child_proc" -gt "$MAX_PARALLEL_COUNT" ]]; do
+    sleep 4
+    n_child_proc=$(jobs -rp | wc -l)
+  done
+done
+
+# Wait for background processes to finish.
+wait
+
+if [[ $FUZZING_LANGUAGE == "go" ]]; then
+  echo $DUMPS_DIR
+  $SYSGOPATH/bin/gocovmerge $DUMPS_DIR/*.profdata > fuzz.cov
+  gotoolcover -html=fuzz.cov -o $REPORT_ROOT_DIR/index.html
+  $SYSGOPATH/bin/gocovsum fuzz.cov > $SUMMARY_FILE
+  cp $REPORT_ROOT_DIR/index.html $REPORT_PLATFORM_DIR/index.html
+  $SYSGOPATH/bin/pprof-merge $DUMPS_DIR/*.perf.cpu.prof
+  mv merged.data $REPORT_ROOT_DIR/cpu.prof
+  $SYSGOPATH/bin/pprof-merge $DUMPS_DIR/*.perf.heap.prof
+  mv merged.data $REPORT_ROOT_DIR/heap.prof
+  #TODO some proxy for go tool pprof -http=127.0.0.1:8001 $DUMPS_DIR/cpu.prof
+  echo "Finished generating code coverage report for Go fuzz targets."
+elif [[ $FUZZING_LANGUAGE == "python" ]]; then
+  # Extract source files from all dependency zip folders
+  mkdir -p /pythoncovmergedfiles/medio
+  PYCOVDIR=/pycovdir/
+  mkdir $PYCOVDIR
+  for fuzzer in $FUZZ_TARGETS; do
+    fuzzer_deps=${fuzzer}.pkg.deps.zip
+    unzip $OUT/${fuzzer_deps}
+    rsync -r ./medio /pythoncovmergedfiles/medio
+    rm -rf ./medio
+
+    # Translate paths in unzipped folders to paths that we can use
+    mv $OUT/.coverage_$fuzzer .coverage
+    python3 /usr/local/bin/python_coverage_runner_help.py translate /pythoncovmergedfiles/medio
+    cp .new_coverage $PYCOVDIR/.coverage_$fuzzer
+    cp .new_coverage $OUT/coverage_d_$fuzzer
+  done
+
+  # Combine coverage
+  cd $PYCOVDIR
+  python3 /usr/local/bin/python_coverage_runner_help.py combine .coverage_*
+  python3 /usr/local/bin/python_coverage_runner_help.py html
+  # Produce all_cov file used by fuzz introspector.
+  python3 /usr/local/bin/python_coverage_runner_help.py json -o ${TEXTCOV_REPORT_DIR}/all_cov.json
+
+  # Generate .json with similar format to llvm-cov output.
+  python3 /usr/local/bin/python_coverage_runner_help.py \
+      convert-to-summary-json ${TEXTCOV_REPORT_DIR}/all_cov.json $SUMMARY_FILE
+
+  # Copy coverage date out
+  cp htmlcov/status.json ${TEXTCOV_REPORT_DIR}/html_status.json
+
+  mv htmlcov/* $REPORT_PLATFORM_DIR/
+  mv .coverage_* $REPORT_PLATFORM_DIR/
+elif [[ $FUZZING_LANGUAGE == "jvm" ]]; then
+
+  # From this point on the script does not tolerate any errors.
+  set -e
+
+  # Merge .exec files from the individual targets.
+  jacoco_merged_exec=$DUMPS_DIR/jacoco.merged.exec
+  java -jar /opt/jacoco-cli.jar merge $DUMPS_DIR/*.exec \
+      --destfile $jacoco_merged_exec
+
+  # Prepare classes directory for jacoco process
+  classes_dir=$DUMPS_DIR/classes
+  mkdir $classes_dir
+
+  # Only copy class files found in $OUT/$SRC to ensure they are
+  # lively compiled from the project, avoiding inclusion of
+  # dependency classes. This also includes the fuzzer classes.
+  find "$OUT/$SRC" -type f -name "*.class" | while read -r class_file; do
+    # Skip module-info.class
+    if [[ "$(basename "$class_file")" == "module-info.class" ]]; then
+        continue
+    fi
+
+    # Use javap to extract the fully qualified name of the class and copy it to $classes_dir
+    fqn=$(javap -verbose "$class_file" 2>/dev/null | grep "this_class:" | grep -oP '(?<=// ).*')
+    if [ -n "$fqn" ]; then
+      mkdir -p $classes_dir/$(dirname $fqn)
+      cp $class_file $classes_dir/$fqn.class
+    fi
+  done
+
+  # Heuristically determine source directories based on Maven structure.
+  # Always include the $SRC root as it likely contains the fuzzer sources.
+  sourcefiles_args=(--sourcefiles $OUT/$SRC)
+  source_dirs=$(find $OUT/$SRC -type d -name 'java')
+  for source_dir in $source_dirs; do
+    sourcefiles_args+=(--sourcefiles "$source_dir")
+  done
+
+  # Generate HTML and XML reports.
+  xml_report=$REPORT_PLATFORM_DIR/index.xml
+  java -jar /opt/jacoco-cli.jar report $jacoco_merged_exec \
+      --html $REPORT_PLATFORM_DIR \
+      --xml $xml_report \
+      --classfiles $classes_dir \
+      "${sourcefiles_args[@]}"
+
+  # Also serve the raw exec file and XML report, which can be useful for
+  # automated analysis.
+  cp $jacoco_merged_exec $REPORT_PLATFORM_DIR/jacoco.exec
+  cp $xml_report $REPORT_PLATFORM_DIR/jacoco.xml
+  cp $xml_report $TEXTCOV_REPORT_DIR/jacoco.xml
+
+  # Write llvm-cov summary file.
+  jacoco_report_converter.py $xml_report $SUMMARY_FILE
+
+  set +e
+elif [[ $FUZZING_LANGUAGE == "javascript" ]]; then
+
+  # From this point on the script does not tolerate any errors.
+  set -e
+
+  json_report=$MERGED_COVERAGE_DIR/coverage.json
+  nyc merge $FUZZERS_COVERAGE_DUMPS_DIR $json_report
+
+  nyc report -t $MERGED_COVERAGE_DIR --report-dir $REPORT_PLATFORM_DIR --reporter=html --reporter=json-summary
+
+  nyc_json_summary_file=$REPORT_PLATFORM_DIR/coverage-summary.json
+
+  # Write llvm-cov summary file.
+  nyc_report_converter.py $nyc_json_summary_file $SUMMARY_FILE
+
+  set +e
+else
+
+  # From this point on the script does not tolerate any errors.
+  set -e
+
+  # Merge all dumps from the individual targets.
+  rm -f $PROFILE_FILE
+  llvm-profdata merge -sparse $DUMPS_DIR/*.profdata -o $PROFILE_FILE
+
+  # TODO(mmoroz): add script from Chromium for rendering directory view reports.
+  # The first path in $objects does not have -object= prefix (llvm-cov format).
+  shared_libraries=$(coverage_helper shared_libs -build-dir=$OUT -object=$objects)
+  objects="$objects $shared_libraries"
+
+  generate_html $PROFILE_FILE "$shared_libraries" "$objects" "$REPORT_ROOT_DIR"
+
+  # Per target reports.
+  for fuzz_target in $FUZZ_TARGETS; do
+    if [[ $fuzz_target == *"@"* ]]; then
+      profdata_path=$DUMPS_DIR/$fuzz_target.profdata
+      report_dir=$REPORT_BY_TARGET_ROOT_DIR/$fuzz_target
+      # Extract fuzztest binary name from fuzztest wrapper script.
+      fuzz_target=(${fuzz_target//@/ }[0])
+    else
+      profdata_path=$DUMPS_DIR/$fuzz_target.profdata
+      report_dir=$REPORT_BY_TARGET_ROOT_DIR/$fuzz_target
+    fi
+    if [[ ! -f "$profdata_path" ]]; then
+      echo "WARNING: $fuzz_target has no profdata generated."
+      continue
+    fi
+
+    generate_html $profdata_path "$shared_libraries" "$fuzz_target" "$report_dir"
+  done
+
+  set +e
+fi
+
+# Make sure report is readable.
+chmod -R +r $REPORT_ROOT_DIR $REPORT_BY_TARGET_ROOT_DIR
+find $REPORT_ROOT_DIR $REPORT_BY_TARGET_ROOT_DIR -type d -exec chmod +x {} +
+
+# HTTP_PORT is optional.
+set +u
+if [[ -n $HTTP_PORT ]]; then
+  # Serve the report locally.
+  echo "Serving the report on http://127.0.0.1:$HTTP_PORT/linux/index.html"
+  cd $REPORT_ROOT_DIR
+  python3 -m http.server $HTTP_PORT
+fi

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/coverage_helper

@@ -0,0 +1,17 @@
+#!/bin/bash -u
+# Copyright 2018 Google Inc.
+#
+# 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.
+#
+################################################################################
+python3 $CODE_COVERAGE_SRC/coverage_utils.py $@

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/download_corpus

@@ -0,0 +1,30 @@
+#!/bin/bash -u
+# Copyright 2018 Google Inc.
+#
+# 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.
+#
+################################################################################
+
+if (( $# < 1 )); then
+  echo "Usage: $0 \"path_download_to url_download_from\" (can be repeated)" >&2
+  exit 1
+fi
+
+for pair in "$@"; do
+  read path url <<< "$pair"
+  wget -q -O $path $url
+done
+
+# Always exit with 0 as we do not track wget return codes and should not rely
+# on the latest command execution.
+exit 0

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/generate_differential_cov_report.py

@@ -0,0 +1,228 @@
+#!/usr/bin/env python3
+#
+# Copyright 2023 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.
+#
+################################################################################
+"""Script for generating differential coverage reports.
+generate_differential_cov_report.py <profdata-dump-directory> \
+<profdata-directory-to-subtract-from-first> <output-directory>
+"""
+import os
+import shutil
+import subprocess
+import sys
+
+
+class ProfData:
+  """Class representing a profdata file."""
+
+  def __init__(self, text):
+    self.function_profs = []
+    for function_prof in text.split('\n\n'):
+      if not function_prof:
+        continue
+      self.function_profs.append(FunctionProf(function_prof))
+
+  def to_string(self):
+    """Convert back to a string."""
+    return '\n'.join(
+        [function_prof.to_string() for function_prof in self.function_profs])
+
+  def find_function(self, function, idx=None):
+    """Find the same function in this profdata."""
+    if idx is not None:
+      try:
+        possibility = self.function_profs[idx]
+        if function.func_hash == possibility.func_hash:
+          return possibility
+      except IndexError:
+        pass
+    for function_prof in self.function_profs:
+      if function_prof.func_hash == function.func_hash:
+        return function_prof
+    return None
+
+  def subtract(self, subtrahend):
+    """Subtract subtrahend from this profdata."""
+    for idx, function_prof in enumerate(self.function_profs):
+      subtrahend_function_prof = subtrahend.find_function(function_prof, idx)
+      function_prof.subtract(subtrahend_function_prof)
+
+
+class FunctionProf:
+  """Profile of a function."""
+  FUNC_HASH_COMMENT_LINE = '# Func Hash:'
+  NUM_COUNTERS_COMMENT_LINE = '# Num Counters:'
+  COUNTER_VALUES_COMMENT_LINE = '# Counter Values:'
+
+  def __init__(self, text):
+    print(text)
+    lines = text.splitlines()
+    self.function = lines[0]
+    assert self.FUNC_HASH_COMMENT_LINE == lines[1]
+    self.func_hash = lines[2]
+    assert self.NUM_COUNTERS_COMMENT_LINE == lines[3]
+    self.num_counters = int(lines[4])
+    assert self.COUNTER_VALUES_COMMENT_LINE == lines[5]
+    self.counter_values = [1 if int(line) else 0 for line in lines[6:]]
+
+  def to_string(self):
+    """Convert back to text."""
+    lines = [
+        self.function,
+        self.FUNC_HASH_COMMENT_LINE,
+        self.func_hash,
+        self.NUM_COUNTERS_COMMENT_LINE,
+        str(self.num_counters),
+        self.COUNTER_VALUES_COMMENT_LINE,
+    ] + [str(num) for num in self.counter_values]
+    return '\n'.join(lines)
+
+  def subtract(self, subtrahend_prof):
+    """Subtract this other function from this function."""
+    if not subtrahend_prof:
+      print(self.function, 'has no subtrahend')
+      # Nothing to subtract.
+      return
+    self.counter_values = [
+        max(counter1 - counter2, 0) for counter1, counter2 in zip(
+            self.counter_values, subtrahend_prof.counter_values)
+    ]
+
+
+def get_profdata_files(directory):
+  """Returns profdata files in |directory|."""
+  profdatas = []
+  for filename in os.listdir(directory):
+    filename = os.path.join(directory, filename)
+    if filename.endswith('.profdata'):
+      profdatas.append(filename)
+  return profdatas
+
+
+def convert_profdata_to_text(profdata):
+  """Convert a profdata binary file to a profdata text file."""
+  profdata_text = f'{profdata}.txt'
+  if os.path.exists(profdata_text):
+    os.remove(profdata_text)
+  command = [
+      'llvm-profdata', 'merge', '-j=1', '-sparse', profdata, '--text', '-o',
+      profdata_text
+  ]
+  print(command)
+  subprocess.run(command, check=True)
+  return profdata_text
+
+
+def convert_text_profdata_to_bin(profdata_text):
+  """Convert a profdata text file to a profdata binary file."""
+  profdata = profdata_text.replace('.txt', '').replace('.profdata',
+                                                       '') + '.profdata'
+  print('bin profdata', profdata)
+  if os.path.exists(profdata):
+    os.remove(profdata)
+  command = [
+      'llvm-profdata', 'merge', '-j=1', '-sparse', profdata_text, '-o', profdata
+  ]
+  print(command)
+  subprocess.run(command, check=True)
+  return profdata
+
+
+def get_difference(minuend_filename, subtrahend_filename):
+  """Subtract subtrahend_filename from minuend_filename."""
+  with open(minuend_filename, 'r', encoding='utf-8') as minuend_file:
+    print('minuend', minuend_filename)
+    minuend = ProfData(minuend_file.read())
+  with open(subtrahend_filename, 'r', encoding='utf-8') as subtrahend_file:
+    print('subtrahend', subtrahend_filename)
+    subtrahend = ProfData(subtrahend_file.read())
+
+  minuend.subtract(subtrahend)
+  return minuend
+
+
+def profdatas_to_objects(profdatas):
+  """Get the corresponding objects for each profdata."""
+  return [
+      os.path.splitext(os.path.basename(profdata))[0] for profdata in profdatas
+  ]
+
+
+def generate_differential_cov_reports(minuend_profdatas, subtrahend_profdatas,
+                                      difference_dir):
+  """Calculate the differences between all profdatas and generate differential
+  coverage reports."""
+  profdata_objects = profdatas_to_objects(minuend_profdatas)
+  real_profdata_objects = [
+      binobject for binobject in profdata_objects if binobject != 'merged'
+  ]
+  for minuend, subtrahend, binobject in zip(minuend_profdatas,
+                                            subtrahend_profdatas,
+                                            profdata_objects):
+    minuend_text = convert_profdata_to_text(minuend)
+    subtrahend_text = convert_profdata_to_text(subtrahend)
+    difference = get_difference(minuend_text, subtrahend_text)
+    basename = os.path.basename(minuend_text)
+    difference_text = os.path.join(difference_dir, basename)
+    with open(difference_text, 'w', encoding='utf-8') as file_handle:
+      file_handle.write(difference.to_string())
+    difference_profdata = convert_text_profdata_to_bin(difference_text)
+    if not difference_profdata.endswith('merged.profdata'):
+      generate_html_report(difference_profdata, [binobject],
+                           os.path.join(difference_dir, binobject))
+    else:
+      generate_html_report(difference_profdata, real_profdata_objects,
+                           os.path.join(difference_dir, 'merged'))
+
+
+def generate_html_report(profdata, objects, directory):
+  """Generate an HTML coverage report."""
+  # TODO(metzman): Deal with shared libs.
+  html_dir = os.path.join(directory, 'reports')
+  if os.path.exists(html_dir):
+    os.remove(html_dir)
+  os.makedirs(html_dir)
+  out_dir = os.getenv('OUT', '/out')
+  command = [
+      'llvm-cov', 'show', f'-path-equivalence=/,{out_dir}', '-format=html',
+      '-Xdemangler', 'rcfilt', f'-instr-profile={profdata}'
+  ]
+
+  objects = [os.path.join(out_dir, binobject) for binobject in objects]
+  command += objects + ['-o', html_dir]
+  print(' '.join(command))
+  subprocess.run(command, check=True)
+
+
+def main():
+  """Generate differential coverage reports."""
+  if len(sys.argv) != 4:
+    print(
+        f'Usage: {sys.argv[0]} <minuend_dir> <subtrahend_dir> <difference_dir>')
+  minuend_dir = sys.argv[1]
+  subtrahend_dir = sys.argv[2]
+  difference_dir = sys.argv[3]
+  if os.path.exists(difference_dir):
+    shutil.rmtree(difference_dir)
+  os.makedirs(difference_dir, exist_ok=True)
+  minuend_profdatas = get_profdata_files(minuend_dir)
+  subtrahend_profdatas = get_profdata_files(subtrahend_dir)
+  generate_differential_cov_reports(minuend_profdatas, subtrahend_profdatas,
+                                    difference_dir)
+
+
+if __name__ == '__main__':
+  main()

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/install_deps.sh

@@ -0,0 +1,37 @@
+#!/bin/bash -eux
+# Copyright 2022 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.
+#
+################################################################################
+
+# Install dependencies in a platform-aware way.
+
+apt-get update && apt-get install -y \
+    binutils \
+    file \
+    ca-certificates \
+    fonts-dejavu \
+    git \
+    libcap2 \
+    rsync \
+    unzip \
+    wget \
+    zip --no-install-recommends
+
+case $(uname -m) in
+  x86_64)
+    # We only need to worry about i386 if we are on x86_64.
+    apt-get install -y lib32gcc1 libc6-i386
+    ;;
+esac

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/install_java.sh

@@ -0,0 +1,46 @@
+#!/bin/bash -eux
+# Copyright 2022 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.
+#
+################################################################################
+
+# Install java in a platform-aware way.
+
+ARCHITECTURE=
+case $(uname -m) in
+    x86_64)
+      ARCHITECTURE=x64
+        ;;
+    aarch64)
+      ARCHITECTURE=aarch64
+      ;;
+    *)
+      echo "Error: unsupported architecture: $(uname -m)"
+      exit 1
+      ;;
+esac
+
+wget -q https://download.java.net/java/GA/jdk17.0.2/dfd4a8d0985749f896bed50d7138ee7f/8/GPL/openjdk-17.0.2_linux-"$ARCHITECTURE"_bin.tar.gz -O /tmp/openjdk-17.0.2_linux-"$ARCHITECTURE"_bin.tar.gz
+wget -q https://download.java.net/java/GA/jdk15.0.2/0d1cfde4252546c6931946de8db48ee2/7/GPL/openjdk-15.0.2_linux-"$ARCHITECTURE"_bin.tar.gz -O /tmp/openjdk-15.0.2_linux-"$ARCHITECTURE"_bin.tar.gz
+cd /tmp
+mkdir -p $JAVA_HOME
+tar -xz --strip-components=1 -f openjdk-17.0.2_linux-"$ARCHITECTURE"_bin.tar.gz --directory $JAVA_HOME
+rm -f openjdk-17.0.2_linux-"$ARCHITECTURE"_bin.tar.gz
+rm -rf $JAVA_HOME/jmods $JAVA_HOME/lib/src.zip
+
+# Install OpenJDK 15 and trim its size by removing unused components. Some projects only run with Java 15.
+mkdir -p $JAVA_15_HOME
+tar -xz --strip-components=1 -f openjdk-15.0.2_linux-"$ARCHITECTURE"_bin.tar.gz --directory $JAVA_15_HOME
+rm -f openjdk-15.0.2_linux-"$ARCHITECTURE"_bin.tar.gz
+rm -rf $JAVA_15_HOME/jmods $JAVA_15_HOME/lib/src.zip

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/install_javascript.sh

@@ -0,0 +1,30 @@
+#!/bin/bash -eux
+# Copyright 2023 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.
+#
+################################################################################
+# see installation instructions: https://github.com/nodesource/distributions#available-architectures
+apt-get update
+apt-get install -y ca-certificates curl gnupg
+mkdir -p /etc/apt/keyrings
+curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
+
+NODE_MAJOR=20
+echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
+
+apt-get update
+apt-get install nodejs -y
+
+# Install latest versions of nyc for source-based coverage reporting
+npm install --global nyc

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/jacoco_report_converter.py

@@ -0,0 +1,174 @@
+#!/usr/bin/env python3
+# Copyright 2021 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.
+#
+################################################################################
+"""Helper script for creating an llvm-cov style JSON summary from a JaCoCo XML
+report."""
+import json
+import os
+import sys
+import xml.etree.ElementTree as ET
+
+
+def convert(xml):
+  """Turns a JaCoCo XML report into an llvm-cov JSON summary."""
+  summary = {
+      'type': 'oss-fuzz.java.coverage.json.export',
+      'version': '1.0.0',
+      'data': [{
+          'totals': {},
+          'files': [],
+      }],
+  }
+
+  report = ET.fromstring(xml)
+  totals = make_element_summary(report)
+  summary['data'][0]['totals'] = totals
+
+  # Since Java compilation does not track source file location, we match
+  # coverage info to source files via the full class name, e.g. we search for
+  # a path in /out/src ending in foo/bar/Baz.java for the class foo.bar.Baz.
+  # Under the assumptions that a given project only ever contains a single
+  # version of a class and that no class name appears as a suffix of another
+  # class name, we can assign coverage info to every source file matched in that
+  # way.
+  src_files = list_src_files()
+
+  for class_element in report.findall('./package/class'):
+    # Skip fuzzer classes
+    if is_fuzzer_class(class_element):
+      continue
+
+    # Skip non class elements
+    if 'sourcefilename' not in class_element.attrib:
+      continue
+
+    class_name = class_element.attrib['name']
+    package_name = os.path.dirname(class_name)
+    basename = class_element.attrib['sourcefilename']
+    # This path is 'foo/Bar.java' for the class element
+    # <class name="foo/Bar" sourcefilename="Bar.java">.
+    canonical_path = os.path.join(package_name, basename)
+
+    class_summary = make_element_summary(class_element)
+    for src_file in relative_to_src_path(src_files, canonical_path):
+      summary['data'][0]['files'].append({
+          'filename': src_file,
+          'summary': class_summary,
+      })
+
+  return json.dumps(summary)
+
+
+def list_src_files():
+  """Returns a map from basename to full path for all files in $OUT/$SRC."""
+  filename_to_paths = {}
+  out_path = os.environ['OUT'] + '/'
+  src_path = os.environ['SRC']
+  src_in_out = out_path + src_path
+  for dirpath, _, filenames in os.walk(src_in_out):
+    for filename in filenames:
+      full_path = dirpath + '/' + filename
+      # Map /out//src/... to /src/...
+      file_path = full_path[len(out_path):]
+      filename_to_paths.setdefault(filename, []).append(file_path)
+  return filename_to_paths
+
+
+def is_fuzzer_class(class_element):
+  """Check if the class is fuzzer class."""
+  method_elements = class_element.find('./method[@name=\"fuzzerTestOneInput\"]')
+  if method_elements:
+    return True
+
+  return False
+
+
+def relative_to_src_path(src_files, canonical_path):
+  """Returns all paths in src_files ending in canonical_path."""
+  basename = os.path.basename(canonical_path)
+  if basename not in src_files:
+    return []
+  candidate_paths = src_files[basename]
+  return [
+      path for path in candidate_paths if path.endswith("/" + canonical_path)
+  ]
+
+
+def make_element_summary(element):
+  """Returns a coverage summary for an element in the XML report."""
+  summary = {}
+
+  function_counter = element.find('./counter[@type=\'METHOD\']')
+  summary['functions'] = make_counter_summary(function_counter)
+
+  line_counter = element.find('./counter[@type=\'LINE\']')
+  summary['lines'] = make_counter_summary(line_counter)
+
+  # JaCoCo tracks branch coverage, which counts the covered control-flow edges
+  # between llvm-cov's regions instead of the covered regions themselves. For
+  # non-trivial code parts, the difference is usually negligible. However, if
+  # all methods of a class consist of a single region only (no branches),
+  # JaCoCo does not report any branch coverage even if there is instruction
+  # coverage. Since this would give incorrect results for CI Fuzz purposes, we
+  # increase the regions counter by 1 if there is any amount of instruction
+  # coverage.
+  instruction_counter = element.find('./counter[@type=\'INSTRUCTION\']')
+  has_some_coverage = instruction_counter is not None and int(
+      instruction_counter.attrib["covered"]) > 0
+  branch_covered_adjustment = 1 if has_some_coverage else 0
+  region_counter = element.find('./counter[@type=\'BRANCH\']')
+  summary['regions'] = make_counter_summary(
+      region_counter, covered_adjustment=branch_covered_adjustment)
+
+  return summary
+
+
+def make_counter_summary(counter_element, covered_adjustment=0):
+  """Turns a JaCoCo <counter> element into an llvm-cov totals entry."""
+  summary = {}
+  covered = covered_adjustment
+  missed = 0
+  if counter_element is not None:
+    covered += int(counter_element.attrib['covered'])
+    missed += int(counter_element.attrib['missed'])
+  summary['covered'] = covered
+  summary['notcovered'] = missed
+  summary['count'] = summary['covered'] + summary['notcovered']
+  if summary['count'] != 0:
+    summary['percent'] = (100.0 * summary['covered']) / summary['count']
+  else:
+    summary['percent'] = 0
+  return summary
+
+
+def main():
+  """Produces an llvm-cov style JSON summary from a JaCoCo XML report."""
+  if len(sys.argv) != 3:
+    sys.stderr.write('Usage: %s <path_to_jacoco_xml> <out_path_json>\n' %
+                     sys.argv[0])
+    return 1
+
+  with open(sys.argv[1], 'r') as xml_file:
+    xml_report = xml_file.read()
+  json_summary = convert(xml_report)
+  with open(sys.argv[2], 'w') as json_file:
+    json_file.write(json_summary)
+
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/reproduce

@@ -0,0 +1,34 @@
+#!/bin/bash -eux
+# Copyright 2016 Google Inc.
+#
+# 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.
+#
+################################################################################
+
+FUZZER=$1
+shift
+
+if [ ! -v TESTCASE ]; then
+    TESTCASE="/testcase"
+fi
+
+if [ ! -f $TESTCASE ]; then
+  echo "Error: $TESTCASE not found, use: docker run -v <path>:$TESTCASE ..."
+  exit 1
+fi
+
+export RUN_FUZZER_MODE="interactive"
+export FUZZING_ENGINE="libfuzzer"
+export SKIP_SEED_CORPUS="1"
+
+run_fuzzer $FUZZER $@ $TESTCASE

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/targets_list

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+for binary in $(find $OUT/ -executable -type f); do
+  [[ "$binary" != *.so ]] || continue
+  [[ $(basename "$binary") != jazzer_driver* ]] || continue
+  file "$binary" | grep -e ELF -e "shell script" > /dev/null 2>&1 || continue
+  grep "LLVMFuzzerTestOneInput" "$binary" > /dev/null 2>&1 || continue
+
+  basename "$binary"
+done

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/test_all_test.py

@@ -0,0 +1,38 @@
+# Copyright 2020 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.
+#
+################################################################################
+"""Tests test_all.py"""
+import unittest
+from unittest import mock
+
+import test_all
+
+
+class TestTestAll(unittest.TestCase):
+  """Tests for the test_all_function."""
+
+  @mock.patch('test_all.find_fuzz_targets', return_value=[])
+  @mock.patch('builtins.print')
+  def test_test_all_no_fuzz_targets(self, mock_print, _):
+    """Tests that test_all returns False when there are no fuzz targets."""
+    outdir = '/out'
+    allowed_broken_targets_percentage = 0
+    self.assertFalse(
+        test_all.test_all(outdir, allowed_broken_targets_percentage))
+    mock_print.assert_called_with('ERROR: No fuzz targets found.')
+
+
+if __name__ == '__main__':
+  unittest.main()

local-test-tika-delta-01/fuzz-tooling/infra/base-images/base-runner/test_one.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+# Copyright 2021 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.
+#
+################################################################################
+"""Does bad_build_check on a fuzz target in $OUT."""
+import os
+import sys
+
+import test_all
+
+
+def test_one(fuzz_target):
+  """Does bad_build_check on one fuzz target. Returns True on success."""
+  with test_all.use_different_out_dir():
+    fuzz_target_path = os.path.join(os.environ['OUT'], fuzz_target)
+    result = test_all.do_bad_build_check(fuzz_target_path)
+    if result.returncode != 0:
+      sys.stdout.buffer.write(result.stdout + result.stderr + b'\n')
+      return False
+    return True
+
+
+def main():
+  """Does bad_build_check on one fuzz target. Returns 1 on failure, 0 on
+  success."""
+  if len(sys.argv) != 2:
+    print('Usage: %d <fuzz_target>', sys.argv[0])
+    return 1
+
+  fuzz_target_binary = sys.argv[1]
+  return 0 if test_one(fuzz_target_binary) else 1
+
+
+if __name__ == '__main__':
+  sys.exit(main())