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Setup Linux Toolchain from Scratch

:link_to_translation:`zh_CN:[中文]`

Note

Standard process for installing the toolchain is described :doc:`here <linux-setup>`. See :ref:`Customized Setup of Toolchain <get-started-customized-setup>` section for some of the reasons why installing the toolchain from scratch may be necessary.

Install Prerequisites

To compile with ESP-IDF you need to get the following packages:

  • Ubuntu and Debian:

    sudo apt-get install gcc git wget make libncurses-dev flex bison gperf python python-pip python-setuptools python-serial python-cryptography python-future python-pyparsing libffi-dev libssl-dev

  • Arch:

    sudo pacman -S --needed gcc git make ncurses flex bison gperf python2-pyserial python2-cryptography python2-future python2-pyparsing

Note

Some older (pre-2014) Linux distributions may use pyserial version 2.x which is not supported by ESP-IDF. In this case please install a supported version via pip as it is described in section :ref:`get-started-get-packages`.

Compile the Toolchain from Source

  • Install dependencies:

    • CentOS 7:

      sudo yum install gawk gperf grep gettext ncurses-devel python python-devel automake bison flex texinfo help2man libtool

    • Ubuntu pre-16.04:

      sudo apt-get install gawk gperf grep gettext libncurses-dev python python-dev automake bison flex texinfo help2man libtool

    • Ubuntu 16.04 or newer:

      sudo apt-get install gawk gperf grep gettext python python-dev automake bison flex texinfo help2man libtool libtool-bin

    • Debian 9:

      sudo apt-get install gawk gperf grep gettext libncurses-dev python python-dev automake bison flex texinfo help2man libtool libtool-bin

    • Arch:

      TODO

Create the working directory and go into it:

mkdir -p ~/esp
cd ~/esp

Download crosstool-NG and build it:

Build the toolchain:

./ct-ng xtensa-esp32-elf
./ct-ng build
chmod -R u+w builds/xtensa-esp32-elf

Toolchain will be built in ~/esp/crosstool-NG/builds/xtensa-esp32-elf. Follow :ref:`instructions for standard setup <setup-linux-toolchain-add-it-to-path>` to add the toolchain to your PATH.

Next Steps

To carry on with development environment setup, proceed to section :ref:`get-started-get-esp-idf`.