Building the SDK

This page acts as a short guide on how to build the SDK using the provided build scripts.

Please note: Your source directory, build and work directories must not have spaces in their names. This is due to a limitation of the GNU Autotools.

Checking out source

Firstly, the source code of the SDK must be downloaded, as demonstrated in Downloading the SDK.

To simplify things you should store the directory into which you downloaded the sources in a variable.

export EPIPHANY_BUILD_HOME="/path/to/download_directory"

Where '/path/to/download_directory' is the absolute path to the directory containing the downloaded SDK tree.

Installing Prerequisites

Before building the SDK, please make sure you have the required prerequisites installed. These are listed separately for [Linux](Building on Linux), [Windows](Building on Windows) and [OS X](Building on Mac).

Building the toolchain

To build the SDK use the build-epiphany-sdk.sh script.

cd $EPIPHANY_BUILD_HOME
sdk/build-epiphany-sdk.sh

Once begun, a successful build will end with the following message:

 **************************************************
 The build is complete.
 The tools have been installed at: /usr/local/bin
 Please ensure that this directory is in your PATH.
 **************************************************

Adding the SDK to your PATH

export PATH=${EPIPHANY_BUILD_HOME}/esdk.5.13.09.10/tools/e-gnu/bin/:$PATH

After this, typing epiphany-elf-gcc --version or e-gcc --version should run Epiphany GCC and dump the version information.

Resolving issues building

If the build has failed, the build log should be checked to see what has caused the error. Usually this is due to a prerequisite package not being installed, so please re-check that you have all the prerequisites installed (please visit the relevant page for your Operating System, Linux, Windows and OS X, for more information). If needed, the SDK forums should be used for support and a bug submitted.