dad082d170
Add a warning about the Gatekeeper issues that Catalina introduces in the section about GNU Arm Embedded. Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
96 lines
2.8 KiB
ReStructuredText
96 lines
2.8 KiB
ReStructuredText
.. _third_party_x_compilers:
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3rd Party Toolchains
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####################
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A "3rd party toolchain" is an officially supported toolchain provided by an
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external organization. Several of these are available.
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.. _toolchain_gnuarmemb:
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GNU ARM Embedded
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****************
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#. Download and install a `GNU ARM Embedded`_ build for your operating system
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and extract it on your file system.
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.. warning::
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Do not install the toolchain into a path with spaces. On
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Windows, we'll assume you install into the directory
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:file:`C:\\gnu_arm_embedded`.
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.. warning::
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On macOS Catalina or later you might need to :ref:`change a security
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policy <mac-gatekeeper>` for the toolchain to be able to run from the
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terminal.
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#. :ref:`Set these environment variables <env_vars>`:
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- Set :envvar:`ZEPHYR_TOOLCHAIN_VARIANT` to ``gnuarmemb``.
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- Set :envvar:`GNUARMEMB_TOOLCHAIN_PATH` to the toolchain installation
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directory.
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#. To check that you have set these variables correctly in your current
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environment, follow these example shell sessions (the
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:envvar:`GNUARMEMB_TOOLCHAIN_PATH` values may be different on your system):
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.. code-block:: console
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# Linux, macOS:
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$ echo $ZEPHYR_TOOLCHAIN_VARIANT
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gnuarmemb
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$ echo $GNUARMEMB_TOOLCHAIN_PATH
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/home/you/Downloads/gnu_arm_embedded
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# Windows
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> echo %ZEPHYR_TOOLCHAIN_VARIANT%
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gnuarmemb
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> echo %GNUARMEMB_TOOLCHAIN_PATH%
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C:\gnu_arm_embedded
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Crosstool-NG
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************
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You can build toolchains from source code using crosstool-NG.
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#. Follow the steps on the crosstool-NG website to `prepare your host
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<http://crosstool-ng.github.io/docs/os-setup/>`_.
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#. Follow the `Zephyr SDK with Crosstool NG instructions
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<https://github.com/zephyrproject-rtos/sdk-ng/blob/master/README.md>`_ to
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build your toolchain. Repeat as necessary to build toolchains for multiple
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target architectures.
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You will need to clone the ``sdk-ng`` repo and run the following command:
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.. code-block:: console
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./go.sh <arch>
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.. note::
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Currently, only i586 and Arm toolchain builds are verified.
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#. :ref:`Set these environment variables <env_vars>`:
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- Set :envvar:`ZEPHYR_TOOLCHAIN_VARIANT` to ``xtools``.
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- Set :envvar:`XTOOLS_TOOLCHAIN_PATH` to the toolchain build directory.
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#. To check that you have set these variables correctly in your current
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environment, follow these example shell sessions (the
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:envvar:`XTOOLS_TOOLCHAIN_PATH` values may be different on your system):
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.. code-block:: console
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# Linux, macOS:
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$ echo $ZEPHYR_TOOLCHAIN_VARIANT
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xtools
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$ echo $XTOOLS_TOOLCHAIN_PATH
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/Volumes/CrossToolNGNew/build/output/
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.. _GNU ARM Embedded: https://developer.arm.com/open-source/gnu-toolchain/gnu-rm
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.. _crosstool-ng site: http://crosstool-ng.org
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