84898f62a3
Installation of single toolchain causes problems for customers who are not familiar with Zephyr infrastructure. This tip is supposed to help them. Signed-off-by: Nikolay Agishev <agishev@synopsys.com>
48 lines
2 KiB
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48 lines
2 KiB
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.. _toolchain_designware_arc_mwdt:
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DesignWare ARC MetaWare Development Toolkit (MWDT)
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##################################################
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#. You need to have `ARC MWDT <https://www.synopsys.com/dw/ipdir.php?ds=sw_metaware>`_ installed on
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your host.
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#. You need to have :ref:`Zephyr SDK <toolchain_zephyr_sdk>` installed on your host.
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.. note::
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A Zephyr SDK is used as a source of tools like device tree compiler (DTC), QEMU, etc...
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Even though ARC MWDT toolchain is used for Zephyr RTOS build, still the GNU preprocessor & GNU
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objcopy might be used for some steps like device tree preprocessing and ``.bin`` file
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generation. We used Zephyr SDK as a source of these ARC GNU tools as well.
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To setup ARC GNU toolchain please use SDK Bundle (Full or Minimal) instead of manual installation
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of separate tarballs. It installs and registers toolchain and host tools in the system,
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that allows you to avoid toolchain related issues while building Zephyr.
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#. :ref:`Set these environment variables <env_vars>`:
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- Set :envvar:`ZEPHYR_TOOLCHAIN_VARIANT` to ``arcmwdt``.
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- Set :envvar:`ARCMWDT_TOOLCHAIN_PATH` to the toolchain installation directory. MWDT installation
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provides :envvar:`METAWARE_ROOT` so simply set :envvar:`ARCMWDT_TOOLCHAIN_PATH` to
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``$METAWARE_ROOT/../`` (Linux) or ``%METAWARE_ROOT%\..\`` (Windows).
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.. tip::
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If you have only one ARC MWDT toolchain version installed on your machine you may skip setting
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:envvar:`ARCMWDT_TOOLCHAIN_PATH` - it would be detected automatically.
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#. To check that you have set these variables correctly in your current
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environment, follow these example shell sessions (the
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:envvar:`ARCMWDT_TOOLCHAIN_PATH` values may be different on your system):
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.. code-block:: console
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# Linux:
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$ echo $ZEPHYR_TOOLCHAIN_VARIANT
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arcmwdt
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$ echo $ARCMWDT_TOOLCHAIN_PATH
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/home/you/ARC/MWDT_2023.03/
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# Windows:
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> echo %ZEPHYR_TOOLCHAIN_VARIANT%
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arcmwdt
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> echo %ARCMWDT_TOOLCHAIN_PATH%
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C:\ARC\MWDT_2023.03\
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