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#!/bin/sh
#
# this is the entry point for oss-fuzz.
#
# it can be invoked locally for development purposes as well
#
set -e
fuzzer_src_files=
if [ -z $SRC ] ; then
echo "development mode"
set -ux
SCRIPTDIR=$(dirname "$0")
cd "$SCRIPTDIR/.."
# Check if /usr/lib/ccache/clang++-18 exists
if [ -f /usr/lib/ccache/clang++-18 ]; then
export CXX=/usr/lib/ccache/clang++-18
else
# Check if clang++ exists
if command -v clang++ >/dev/null 2>&1; then
# Get clang++ version
CLANG_VERSION=$(clang++ --version | grep -oP 'version \K[0-9]+' | head -1)
# Check if version is less than 18
if [ "$CLANG_VERSION" -lt 18 ]; then
echo "Warning: clang++ version $CLANG_VERSION is less than 18."
fi
export CXX=clang++
else
echo "Error: clang++ not found."
exit 1
fi
fi
export CXXFLAGS="-fsanitize=fuzzer-no-link,address,undefined -g -O1 -fsanitize-trap=undefined -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION=1"
export LIB_FUZZING_ENGINE="-fsanitize=fuzzer"
export OUT=fuzz/out
export WORK=fuzz/work
BUILD=$WORK/build
mkdir -p $OUT $WORK
fuzzer_src_files=$(ls fuzz/*.cpp|grep -v -E "fuzz/(reproducer.|main)")
else
# invoked from oss fuzz
cd $SRC/simdutf
# temporary: exclude atomic from oss-fuzz, libc++ 18 used there does not support atomic ref
fuzzer_src_files=$(ls fuzz/*.cpp|grep -v -E "fuzz/(reproducer.|main|atomic.)")
BUILD=build
fi
cmake -B $BUILD -S . \
-DSIMDUTF_TESTS=Off \
-DSIMDUTF_TOOLS=Off \
-DSIMDUTF_FUZZERS=Off \
-DCMAKE_BUILD_TYPE=Debug \
-DSIMDUTF_CXX_STANDARD=20 \
-DSIMDUTF_ALWAYS_INCLUDE_FALLBACK=On
cmake --build $BUILD -j$(nproc)
cmake --install $BUILD --prefix $WORK
CXXFLAGSEXTRA=-std=c++20
for fuzzersrc in $fuzzer_src_files ; do
fuzzer=$(basename $fuzzersrc .cpp)
$CXX $CXXFLAGS $CXXFLAGSEXTRA\
-I $WORK/include \
-c $fuzzersrc -o $fuzzer.o
$CXX $CXXFLAGS $LIB_FUZZING_ENGINE \
$fuzzer.o \
$WORK/lib/libsimdutf.a \
-o $OUT/$fuzzer
done
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