Jetson Linux Driver Package Toolchain

NVIDIA® specifies the Linaro gcc 7.3.1 2018.05 aarch64 toolchain for:

• Cross-compiling applications to run on Jetson Linux Driver Package (L4T rel-32.

• Cross-compiling code in the L4T rel-32 source release.

This topic describes how to obtain this toolchain.

Toolchain Information

The toolchain contains the following components:

• GCC version: 7.3.1

• Binutils version: 2.28.2.20170706

• Glibc version: 2.25

Downloading the Toolchain

Download the pre-built toolchain binaries from:

http://releases.linaro.org/components/toolchain/binaries/7.3-2018.05/aarch64-linux-gnu/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz

Extracting the Toolchain

Execute the following commands to extract the toolchain:

$ mkdir $HOME/l4t-gcc

$ cd $HOME/l4t-gcc

$ tar xf gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz

Setting the CROSS_COMPILE Environment Variable

Many build systems require you to set environment variable CROSS_COMPILE to point at the toolchain to use. To set CROSS_COMPILE for the aarch64 toolchain:

$ export CROSS_COMPILE=$HOME/l4t-gcc/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-