wasm-micro-runtime/tests/fuzz/wasm-mutator-fuzz/smith_wasm.sh

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#!/bin/bash
#
# Copyright (C) 2019 Intel Corporation. All rights reserved.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
# 1.check parameter
if [ ! $1 ]; then
echo "Parameter is empty, please enter parameter !"
exit
fi
EXPECTED_NUM=$1
# 2.check dir
buildPath="./build"
corpusPath="$buildPath/CORPUS_DIR"
rm -rf "${corpusPath}"
mkdir -p "${corpusPath}"
# 3.change dir
cd "${corpusPath}"
# 4.generate *.wasm file
echo "Generating $EXPECTED_NUM Wasm files for each kind as required"
# Generate wasm files with different features
# Try on and on until the generated wasm file exists
function try_generate_wasm()
{
SMITH_OPTIONS=$1
GENERATED_WASM_NAME=$2
local try_i=0
until [[ -f $GENERATED_WASM_NAME ]]; do
# Larger input seeds tend to generate larger WebAssembly modules. (256KB)
head -c 262144 /dev/urandom | wasm-tools smith $SMITH_OPTIONS -o $GENERATED_WASM_NAME >/dev/null 2>&1
try_i=$((try_i+1))
done
printf -- "-- output ${GENERATED_WASM_NAME} in %d retries\n" $try_i
}
WASM_SHAPE=" --ensure-termination \
--export-everything true \
--fuel 7 \
--generate-custom-sections true \
--min-funcs 10 \
--max-instructions 1024 \
--min-globals 10"
TIERED_A_FEATURE=" --bulk-memory-enabled true \
--extended-const-enabled true \
--memory64-enabled true \
--multi-value-enabled true \
--reference-types-enabled true \
--simd-enabled true \
--tail-call-enabled true \
--threads-enabled true"
for i in $(seq 1 $EXPECTED_NUM)
do
# tiered A wasm files
try_generate_wasm "${WASM_SHAPE} ${TIERED_A_FEATURE}" test_tiered_a_$i.wasm
done
printf "Done\n"