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Overview

In this lesson, you will go through the process of configuring the Toradex Software Development Kit (SDK) for cross-compilation of C/C++ code to the ARM architecture, which uses the GNU C Compiler (GCC).

In this lesson you will:

• Download and setup the Toradex SDK.

Prerequisites

• Host computer running the regular 64-bit installation of Ubuntu 16.04 LTS, as stated in the module 1 cover page.

Step 1

Download the Toradex SDK to the home directory of your computer.

Download the 64-bit SDK from here.

It includes the cross toolchain for building applications on the host machine, as well as the target root filesystem with development headers.

Warning: Make sure to use a matching SDK version (e.g. for Linux version 2.7, download SDK version 2.7). All available SDK versions are found here.

Step 2

Open the Linux terminal and go to the home directory. Install the SDK using the following commands. Use the default installation directory:

Note: This assumes that you downloaded your toolchain file in your home folder! Make sure to check where you downloaded the toolchain file and navigate accordingly using the cd command.

user@host:~$ cd
user@host:~$ chmod +x angstrom-glibc-x86_64-armv7at2hf-neon-v2017.12-toolchain.sh
user@host:~$ ./angstrom-glibc-x86_64-armv7at2hf-neon-v2017.12-toolchain.sh
Angstrom SDK installer version nodistro.0
=========================================
Enter target directory for SDK (default: /usr/local/oecore-x86_64):
You are about to install the SDK to "/usr/local/oecore-x86_64". Proceed[Y/n]? y

Step 3

Export the variables for cross-compilation.

Attention: You must execute this step every time you open a new terminal window or tab for cross-compilation.

. /usr/local/oecore-x86_64/environment-setup-armv7at2hf-neon-angstrom-linux-gnueabi

Warning: In the command above, notice that there is a dot and a space before the path to the script.