initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/3rdparty/libwebp/tests/fuzzer/oss-fuzz/build.sh

@@ -0,0 +1,86 @@
+#!/bin/bash
+# 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.
+#
+################################################################################
+
+# This script is meant to be run by the oss-fuzz infrastructure from the script
+# https://github.com/google/oss-fuzz/blob/master/projects/libwebp/build.sh
+# It builds the different fuzz targets.
+# Only the libfuzzer engine is supported.
+
+# To test changes to this file:
+# - make changes and commit to your REPO
+# - run:
+#     git clone --depth=1 git@github.com:google/oss-fuzz.git
+#     cd oss-fuzz
+# - modify projects/libwebp/Dockerfile to point to your REPO
+# - run:
+#     python3 infra/helper.py build_image libwebp
+#     # enter 'y' and wait for everything to be downloaded
+# - run:
+#     python3 infra/helper.py build_fuzzers --sanitizer address libwebp
+#     # wait for the tests to be built
+# And then run the fuzzer locally, for example:
+#     python3 infra/helper.py run_fuzzer libwebp \
+#     --sanitizer address \
+#     animencoder_fuzzer@AnimEncoder.AnimEncoderTest
+
+set -eu
+
+EXTRA_CMAKE_FLAGS=""
+export CXXFLAGS="${CXXFLAGS} -DFUZZTEST_COMPATIBILITY_MODE"
+EXTRA_CMAKE_FLAGS="-DFUZZTEST_COMPATIBILITY_MODE=libfuzzer"
+
+# limit allocation size to reduce spurious OOMs
+WEBP_CFLAGS="$CFLAGS -DWEBP_MAX_IMAGE_SIZE=838860800" # 800MiB
+
+export CFLAGS="$WEBP_CFLAGS"
+cmake -S . -B build -DWEBP_BUILD_FUZZTEST=ON ${EXTRA_CMAKE_FLAGS}
+cd build && make -j$(nproc) && cd ..
+
+find $SRC/libwebp-test-data -type f -size -32k -iname "*.webp" \
+  -exec zip -qju fuzz_seed_corpus.zip "{}" \;
+
+# The following is taken from https://github.com/google/oss-fuzz/blob/31ac7244748ea7390015455fb034b1f4eda039d9/infra/base-images/base-builder/compile_fuzztests.sh#L59
+# Iterate the fuzz binaries and list each fuzz entrypoint in the binary. For
+# each entrypoint create a wrapper script that calls into the binaries the
+# given entrypoint as argument.
+# The scripts will be named:
+# {binary_name}@{fuzztest_entrypoint}
+FUZZ_TEST_BINARIES_OUT_PATHS=$(find ./build/tests/fuzzer/ -executable -type f)
+echo "Fuzz binaries: $FUZZ_TEST_BINARIES_OUT_PATHS"
+for fuzz_main_file in $FUZZ_TEST_BINARIES_OUT_PATHS; do
+  FUZZ_TESTS=$($fuzz_main_file --list_fuzz_tests | cut -d ' ' -f 4)
+  cp -f ${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
+    cat << EOF > $OUT/$TARGET_FUZZER
+#!/bin/sh
+# LLVMFuzzerTestOneInput for fuzzer detection.
+this_dir=\$(dirname "\$0")
+export TEST_DATA_DIRS=\$this_dir/corpus
+chmod +x \$this_dir/$fuzz_basename
+\$this_dir/$fuzz_basename --fuzz=$fuzz_entrypoint -- \$@
+chmod -x \$this_dir/$fuzz_basename
+EOF
+    chmod +x $OUT/$TARGET_FUZZER
+  done
+  # Copy data.
+  cp fuzz_seed_corpus.zip $OUT/${fuzz_basename}_seed_corpus.zip
+  cp tests/fuzzer/fuzz.dict $OUT/${fuzz_basename}.dict
+done