Building.md

Building GraalWasm

Prerequisites

• Python 3 (required by mx)
• GIT (to download, update, and locate repositories)
• JDK 11+
• emscripten or wasi-sdk for translating C files

Building

To build GraalWasm, you need to follow the standard workflow for Graal projects. We summarize the basic steps below:

1. Create a new folder where your repositories mx and graal should be located:

   $ mkdir graalvm
   $ cd graalvm

2. Clone mx and add it to the PATH:

   $ git clone https://github.com/graalvm/mx.git
   $ export PATH=$PWD/mx:$PATH

3. Clone the graal repository and enter the wasm directory:

   $ git clone https://github.com/oracle/graal.git
   $ cd graal/wasm

4. Set JAVA_HOME:

   $ export JAVA_HOME=[path to JDK]

5. Build the project:

   $ mx --dy /truffle,/compiler build

These steps will build the wasm.jar file in the mxbuild/dists/jdk<version> directory, which contains GraalWasm.