wasm-micro-runtime/tests/fuzz/wasm-mutator-fuzz/smith_wasm.sh
liang.he f8f37c8ebb
[fuzzing] Enable instantiation (#3958)
- Increase input seed size for wasm-tools to generate larger WebAssembly modules
- Add instantiation in wasm mutator fuzz tests
2024-12-19 16:51:20 +08:00

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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=" --allow-invalid-funcs true \
--generate-custom-sections true \
--min-funcs 5 \
--max-instructions 1024 \
--min-globals 10"
WASM_MVP_FEATURES=" --bulk-memory-enabled true \
--multi-value-enabled true \
--reference-types-enabled true \
--simd-enabled true \
--tail-call-enabled true"
for i in $(seq 1 $EXPECTED_NUM)
do
# mvp
try_generate_wasm "${WASM_SHAPE} ${WASM_MVP_FEATURES}" test_mvp_$i.wasm
# other proposals
try_generate_wasm "${WASM_SHAPE} --exceptions-enabled true" test_exception_$i.wasm
try_generate_wasm "${WASM_SHAPE} --gc-enabled true" test_gc_$i.wasm
try_generate_wasm "${WASM_SHAPE} --memory64-enabled true" test_memory64_$i.wasm
try_generate_wasm "${WASM_SHAPE} --threads-enabled true" test_threads_$i.wasm
done
printf "Done\n"