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#!/bin/bash -eu
# This sets the -coverpgk for the coverage report when the corpus is executed through go test
coverpkg="github.com/holiman/uint256/..."
(cd /src/ && git clone https://github.com/holiman/gofuzz-shim.git )
function coverbuild {
path=$1
function=$2
fuzzer=$3
tags=""
if [[ $# -eq 4 ]]; then
tags="-tags $4"
fi
cd $path
fuzzed_package=`pwd | rev | cut -d'/' -f 1 | rev`
cp /src/gofuzz-shim/coverage_runner_template.txt ./"${function,,}"_test.go
sed -i -e 's/FuzzFunction/'$function'/' ./"${function,,}"_test.go
sed -i -e 's/mypackagebeingfuzzed/'$fuzzed_package'/' ./"${function,,}"_test.go
sed -i -e 's/TestFuzzCorpus/Test'$function'Corpus/' ./"${function,,}"_test.go
cat << DOG > $OUT/$fuzzer
#/bin/sh
cd $OUT/$path
go test -run Test${function}Corpus -v $tags -coverprofile \$1 -coverpkg $coverpkg
DOG
chmod +x $OUT/$fuzzer
#echo "Built script $OUT/$fuzzer"
#cat $OUT/$fuzzer
cd -
}
repo=/src/uint256
function compile_fuzzer() {
package=$1
function=$2
fuzzer=$3
file=$4
path=$repo
echo "Building $fuzzer"
cd $path
# Install build dependencies
go mod tidy
go get github.com/holiman/gofuzz-shim/testing
if [[ $SANITIZER == *coverage* ]]; then
coverbuild $path $function $fuzzer $coverpkg
else
gofuzz-shim --func $function --package $package -f $file -o $fuzzer.a
$CXX $CXXFLAGS $LIB_FUZZING_ENGINE $fuzzer.a -o $OUT/$fuzzer
fi
## Check if there exists a seed corpus file
corpusfile="${path}/testdata/${fuzzer}_seed_corpus.zip"
if [ -f $corpusfile ]
then
cp $corpusfile $OUT/
echo "Found seed corpus: $corpusfile"
fi
cd -
}
go install github.com/holiman/gofuzz-shim@latest
compile_fuzzer github.com/holiman/uint256 FuzzUnaryOperations fuzzUnary $repo/unary_test.go,$repo/shared_test.go
compile_fuzzer github.com/holiman/uint256 FuzzBinaryOperations fuzzBinary $repo/binary_test.go,$repo/shared_test.go
compile_fuzzer github.com/holiman/uint256 FuzzCompareOperations fuzzCompare $repo/binary_test.go,$repo/shared_test.go
compile_fuzzer github.com/holiman/uint256 FuzzTernaryOperations fuzzTernary $repo/ternary_test.go,$repo/shared_test.go
compile_fuzzer github.com/holiman/uint256 FuzzSetString fuzzSetString $repo/conversion_fuzz_test.go,$repo/shared_test.go
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