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91 lines
2.5 KiB
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91 lines
2.5 KiB
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***********************************************
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Setup Toolchain for Mac OS from Scratch
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***********************************************
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:link_to_translation:`zh_CN:[中文]`
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Package Manager
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===============
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To set up the toolchain from scratch, rather than :doc:`downloading a pre-compiled toolchain<macos-setup>`, you will need to install either the MacPorts_ or homebrew_ package manager.
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MacPorts needs a full XCode installation, while homebrew only needs XCode command line tools.
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.. _homebrew: https://brew.sh/
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.. _MacPorts: https://www.macports.org/install.php
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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.
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Install Prerequisites
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=====================
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- install pip::
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sudo easy_install pip
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- install pyserial::
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pip install --user pyserial
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- install CMake & Ninja build:
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- If you have HomeBrew, you can run::
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brew install cmake ninja
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- If you have MacPorts, you can run::
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sudo port install cmake ninja
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Compile the Toolchain from Source
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=================================
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- Install dependencies:
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- with MacPorts::
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sudo port install gsed gawk binutils gperf grep gettext wget libtool autoconf automake make
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- with homebrew::
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brew install gnu-sed gawk binutils gperftools gettext wget help2man libtool autoconf automake make
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Create a case-sensitive filesystem image::
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hdiutil create ~/esp/crosstool.dmg -volname "ctng" -size 10g -fs "Case-sensitive HFS+"
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Mount it::
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hdiutil mount ~/esp/crosstool.dmg
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Create a symlink to your work directory::
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mkdir -p ~/esp
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ln -s /Volumes/ctng ~/esp/ctng-volume
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Go into the newly created directory::
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cd ~/esp/ctng-volume
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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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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/ctng-volume/crosstool-NG/builds/xtensa-esp32-elf``. To use it, you need to add ``~/esp/ctng-volume/crosstool-NG/builds/xtensa-esp32-elf/bin`` to ``PATH`` environment variable.
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Python 2 deprecation
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====================
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Python 2 reached its `end of life <https://www.python.org/doc/sunset-python-2/>`_ and support for it in ESP-IDF will be removed soon. Please install Python 3.6 or higher. Instructions for macOS are listed above.
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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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