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CM-Makefile: How to install required tools

This document describes how to install tools required by CM-Makefile.

Ubuntu 22.04

GNU Make

If Make is not already present, install the build-essential package which also contains GCC and other tools:

sudo apt-get install build-essential

Arm GNU Toolchain

The Arm GNU Toolchain can be downloaded directly from the Arm website. Simply unpack the archive and put it to a convenient location:

tar xf arm-gnu-toolchain-12.2.rel1-x86_64-arm-none-eabi.tar.xz
sudo mv arm-gnu-toolchain-12.2.rel1-x86_64-arm-none-eabi /opt

Then add the toolchain to PATH:

echo "export PATH="/opt/arm-gnu-toolchain-12.2.rel1-x86_64-arm-none-eabi/bin:$PATH"" >> ~/.bashrc
source ~/.bashrc

Alternatively (or to use a specific toolchain version), set the CROSS_COMPILE variable when running make:

make CROSS_COMPILE=/usr/local/gcc-arm-none-eabi-8-2018-q4-major/bin/arm-none-eabi-

GDB (as part of the Arm GNU Toolchain)

GDB is distributed as part of the Arm GNU Toolchain and is available as arm-none-eabi-gdb after the toolchain installation.

To run this particular version on Ubuntu 22.04, it is necessary to install the libncursesw5 library and Python 3.8 (available in a PPA):

sudo apt-get install libncursesw5
sudo add-apt-repository -y ppa:deadsnakes/ppa
sudo apt-get install python3.8

GDB (built separately)

A better strategy is to build GDB from sources and install it alongside the Arm GNU Toolchain version. This way it is configured to use the default system version of Python version which makes running plugins easier.

First install the ncurses library:

sudo apt-get install libncursesw5-dev

Then, build and install GDB to a convenient location (e.g. /opt/arm-none-eabi-gdb):

wget https://ftp.gnu.org/gnu/gdb/gdb-12.1.tar.xz
tar xf gdb-12.1.tar.xz
mkdir gdb-12.1-build
cd gdb-12.1-build
../gdb-12.1/configure --with-python=$(which python3) --target=arm-none-eabi --enable-interwork --enable-multilib --prefix=/opt/arm-none-eabi-gdb
make -j$(nproc)
sudo make install

Finally, append it to PATH which overrides arm-none-eabi-gdb from the Arm GNU Toolchain:

echo "export PATH="/opt/arm-none-eabi-gdb/bin:$PATH"" >> ~/.bashrc
source ~/.bashrc

OpenOCD

OpenOCD can be installed from Ubuntu repository:

sudo apt-get install openocd

However, as the release cycle is rather slow, it might be more useful to compile it from sources (especially when working with newer MCUs):

git clone --recursive https://git.code.sf.net/p/openocd/code openocd
cd openocd
./bootstrap
./configure
make -j$(nproc)
sudo make install