79 lines
3 KiB
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79 lines
3 KiB
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******************************************
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Setup Linux Toolchain from Scratch
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******************************************
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:link_to_translation:`zh_CN:[中文]`
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The following instructions are alternative to downloading binary toolchain from Espressif website. To quickly setup the binary toolchain, instead of compiling it yourself, backup and proceed to section :doc:`linux-setup`.
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.. note:: The reason you might need to build your own toolchain is to solve the Y2K38 problem (time_t expand to 64 bits instead of 32 bits).
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Install Prerequisites
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=====================
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To compile with ESP-IDF you need to get the following packages:
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- CentOS 7::
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sudo yum install git wget ncurses-devel flex bison gperf python pyserial python-pyelftools cmake ninja-build ccache
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- Ubuntu and Debian::
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sudo apt-get install git wget libncurses-dev flex bison gperf python python-pip python-setuptools python-serial python-click python-cryptography python-future python-pyparsing python-pyelftools cmake ninja-build ccache libffi-dev libssl-dev
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- Arch::
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sudo pacman -S --needed gcc git make ncurses flex bison gperf python-pyserial python-click python-cryptography python-future python-pyparsing python-pyelftools cmake ninja ccache
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.. note::
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CMake version 3.5 or newer is required for use with ESP-IDF. Older Linux distributions may require updating, enabling of a "backports" repository, or installing of a "cmake3" package rather than "cmake".
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Compile the Toolchain from Source
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=================================
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- Install dependencies:
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- CentOS 7::
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sudo yum install gawk gperf grep gettext ncurses-devel python python-devel automake bison flex texinfo help2man libtool make
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- Ubuntu pre-16.04::
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sudo apt-get install gawk gperf grep gettext libncurses-dev python python-dev automake bison flex texinfo help2man libtool make
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- Ubuntu 16.04 or newer::
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sudo apt-get install gawk gperf grep gettext python python-dev automake bison flex texinfo help2man libtool libtool-bin make
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- Debian 9::
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sudo apt-get install gawk gperf grep gettext libncurses-dev python python-dev automake bison flex texinfo help2man libtool libtool-bin make
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- Arch::
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TODO
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Create the working directory and go into it::
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mkdir -p ~/esp
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cd ~/esp
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Download ``crosstool-NG`` and build it:
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.. include:: /_build/inc/scratch-build-code.inc
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.. note:: To create a toolchain with support for 64-bit time_t, you need to remove the ``--enable-newlib-long-time_t`` option from the ``crosstool-NG/samples/xtensa-esp32-elf/crosstool.config`` file in 33 and 43 lines.
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Build the toolchain::
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./ct-ng xtensa-esp32-elf
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./ct-ng build
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chmod -R u+w builds/xtensa-esp32-elf
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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-legacy>` to add the toolchain to your ``PATH``.
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Next Steps
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==========
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To carry on with development environment setup, proceed to :ref:`get-started-get-esp-idf`.
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