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#!/bin/bash -eux
#
# 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.
#
################################################################################
build_protobuf() {
./autogen.sh
./configure --disable-shared
make -j $(nproc)
make check -j $(nproc)
make install
ldconfig
}
(cd protobuf-3.3.0 && build_protobuf)
readonly FUZZERS=( \
clang-fuzzer \
clang-proto-fuzzer \
clang-loop-proto-fuzzer \
clang-format-fuzzer \
clangd-fuzzer \
llvm-demangle-fuzzer \
llvm-dwarfdump-fuzzer \
llvm-isel-fuzzer \
llvm-special-case-list-fuzzer \
llvm-opt-fuzzer \
)
case $SANITIZER in
address) LLVM_SANITIZER="Address" ;;
undefined) LLVM_SANITIZER="Undefined" ;;
memory) LLVM_SANITIZER="MemoryWithOrigins" ;;
*) LLVM_SANITIZER="" ;;
esac
mkdir build
cd build
cmake -GNinja -DCMAKE_BUILD_TYPE=Release ../llvm \
-DLLVM_ENABLE_ASSERTIONS=ON \
-DCMAKE_C_COMPILER="${CC}" \
-DCMAKE_CXX_COMPILER="${CXX}" \
-DCMAKE_C_FLAGS="${CFLAGS}" \
-DCMAKE_CXX_FLAGS="${CXXFLAGS}" \
-DLLVM_LIB_FUZZING_ENGINE="${LIB_FUZZING_ENGINE}" \
-DLLVM_NO_DEAD_STRIP=ON \
-DCLANG_ENABLE_PROTO_FUZZER=ON \
-DLLVM_USE_SANITIZER="${LLVM_SANITIZER}" \
-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=WebAssembly
for fuzzer in "${FUZZERS[@]}"; do
ninja $fuzzer
cp bin/$fuzzer $OUT
done
ninja llvm-as
# isel-fuzzer encodes its default flags in the name.
cp $OUT/llvm-isel-fuzzer $OUT/llvm-isel-fuzzer--aarch64-O2
cp $OUT/llvm-isel-fuzzer $OUT/llvm-isel-fuzzer--x86_64-O2
cp $OUT/llvm-isel-fuzzer $OUT/llvm-isel-fuzzer--wasm32-O2
mv $OUT/llvm-isel-fuzzer $OUT/llvm-isel-fuzzer--aarch64-gisel
# Same for llvm-opt-fuzzer
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-earlycse
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-simplifycfg
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-gvn
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-sccp
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-loop_predication
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-guard_widening
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-loop_vectorize
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-loop_rotate
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-loop_unswitch
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-loop_unroll
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-licm
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-indvars
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-strength_reduce
cp $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-irce
mv $OUT/llvm-opt-fuzzer $OUT/llvm-opt-fuzzer--x86_64-instcombine
# Build corpus for the llvm-opt-fuzzer
function build_corpus {
local lit_path="${1}"
local fuzzer_name="${2}"
[[ -e "${WORK}/corpus-tmp" ]] && rm -r "${WORK}/corpus-tmp"
mkdir "${WORK}/corpus-tmp"
cd "${SRC}"
# Compile all lit tests into bitcode. Ignore possible llvm-as failures.
find "${lit_path}" -name "*.ll" -print0 |
xargs -t -i -0 -n1 sh -c "build/bin/llvm-as "{}" || true"
# Move freshly created bitcode into temp directory.
find "${lit_path}" -name "*.bc" -print0 |
xargs -t -i -0 -n1 mv "{}" "${WORK}/corpus-tmp"
# Archive the corpus.
zip -j "${OUT}/${fuzzer_name}_seed_corpus.zip" "${WORK}"/corpus-tmp/*
rm -r "${WORK}/corpus-tmp"
echo -e "[libfuzzer]\nmax_len = 0" > "${OUT}"/"${fuzzer_name}".options
}
build_corpus "llvm/test/Transforms/InstCombine/" "llvm-opt-fuzzer--x86_64-instcombine"
build_corpus "llvm/test/Transforms/EarlyCSE/" "llvm-opt-fuzzer--x86_64-earlycse"
build_corpus "llvm/test/Transforms/SimplifyCFG/" "llvm-opt-fuzzer--x86_64-simplifycfg"
build_corpus "llvm/test/Transforms/GVN/" "llvm-opt-fuzzer--x86_64-gvn"
build_corpus "llvm/test/Transforms/SCCP/" "llvm-opt-fuzzer--x86_64-sccp"
build_corpus "llvm/test/Transforms/LoopPredication/" "llvm-opt-fuzzer--x86_64-loop_predication"
build_corpus "llvm/test/Transforms/GuardWidening/" "llvm-opt-fuzzer--x86_64-guard_widening"
build_corpus "llvm/test/Transforms/LoopVectorize/" "llvm-opt-fuzzer--x86_64-loop_vectorize"
build_corpus "llvm/test/Transforms/LoopRotate/" "llvm-opt-fuzzer--x86_64-llvm-opt-fuzzer--x86_64-loop_rotate"
build_corpus "llvm/test/Transforms/LoopUnswitch/" "llvm-opt-fuzzer--x86_64-llvm-opt-fuzzer--x86_64-loop_unswitch"
build_corpus "llvm/test/Transforms/LoopUnroll/" "llvm-opt-fuzzer--x86_64-llvm-opt-fuzzer--x86_64-loop_unroll"
build_corpus "llvm/test/Transforms/LICM/" "llvm-opt-fuzzer--x86_64-llvm-opt-fuzzer--x86_64-licm"
build_corpus "llvm/test/Transforms/IndVarSimplify/" "llvm-opt-fuzzer--x86_64-llvm-opt-fuzzer--x86_64-indvars"
build_corpus "llvm/test/Transforms/LoopStrengthReduce/" "llvm-opt-fuzzer--x86_64-llvm-opt-fuzzer--x86_64-strength_reduce"
build_corpus "llvm/test/Transforms/IRCE/" "llvm-opt-fuzzer--x86_64-llvm-opt-fuzzer--x86_64-irce"
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