Adds project upb (ie micro protobuf) (#4914)

projects/upb/Dockerfile

@@ -0,0 +1,21 @@
+# Copyright 2020 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.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder
+RUN apt-get update && apt-get install -y cmake
+RUN git clone --depth 1 https://github.com/protocolbuffers/upb.git upb
+WORKDIR $SRC
+COPY build.sh $SRC/

projects/upb/build.sh

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+#!/bin/bash -eu
+# Copyright 2020 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.
+#
+################################################################################
+
+# build project
+cd upb/cmake
+cmake .
+make -j$(nproc)
+
+# use bazel to build instead ?
+$CC $CFLAGS -I. -I.. -o descriptor.upb.o -c google/protobuf/descriptor.upb.c
+$CXX $CXXFLAGS -DHAVE_FUZZER=1 -std=c++11 -I. -I.. -o fuzz_parsenew.o -c ../tests/file_descriptor_parsenew_fuzzer.cc
+$CXX $CXXFLAGS fuzz_parsenew.o descriptor.upb.o -o $OUT/fuzz_parsenew *.a $LIB_FUZZING_ENGINE
+
+# builds corpus
+cd ..
+find . -name "*.proto" | xargs zip -r $OUT/fuzz_parsenew_seed_corpus.zip

projects/upb/project.yaml

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+homepage: "https://github.com/protocolbuffers/upb"
+language: c++
+primary_contact: "haberman@google.com"
+auto_ccs :
+- "p.antoine@catenacyber.fr"
+
+sanitizers:
+- address
+- memory
+- undefined
+main_repo: 'https://github.com/protocolbuffers/upb.git'