WebAssembly Micro Runtime Fork

This repo is a fork of the webassembly-micro-runtime repo by bytecodealliance. It includes an additional sample wasm program called "wafle", which shows how to call a native C function from inside a wasm module.

Setting up your environment

Clone this repo in your workspace of choice:

git clone https://github.com/loloRvz/wasm-micro-runtime.git
cd wasm-micro-runtime

Install the necessary C programming tools:

sudo apt-get install gcc build-essential

Download the wasi-sdk and extract the archive to its default path /opt/wasi-sdk.

curl -L https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/wasi-sdk-12.0-linux.tar.gz > wasi-sdk.tar.gz
tar xfv wasi-sdk.tar.gz
sudo mv wasi-sdk-12.0 /opt/wasi-sdk
rm wasi-sdk.tar.gz

Build the sample application

Go to the "wafle" directory and run the build script:

cd samples/wafle
./build.sh

You can now run the program:

./out/wafle -f out/wasm-apps/test_com.wasm -a 1

The "-f" option specifies the path of the wasm module and the "-a" option specifies the number of arguments being passed to the wasm module and back.