OVMS3-idf/docs/api-guides/jtag-debugging/building-openocd-macos.rst
2017-07-27 20:25:56 +08:00

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Building OpenOCD from Sources for MacOS
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The following instructions are alternative to downloading binary OpenOCD from Espressif website. To quickly setup the binary OpenOCD, instead of compiling it yourself, backup and proceed to section :doc:`setup-openocd-macos`.
.. highlight:: bash
Download Sources of OpenOCD
===========================
The sources for the ESP32-enabled variant of OpenOCD are available from Espressif GitHub under https://github.com/espressif/openocd-esp32. To download the sources, use the following commands::
cd ~/esp
git clone recursive https://github.com/espressif/openocd-esp32.git
The clone of sources should be now saved in ``~/esp/openocd-esp32`` directory.
Install Dependencies
====================
Install packages that are required to compile OpenOCD using Homebrew::
brew install automake libtool libusb wget gcc@4.9
Build OpenOCD
=============
Proceed with configuring and building OpenOCD::
cd ~/esp/openocd-esp32
./bootstrap
./configure
make
Optionally you can add ``sudo make install`` step at the end. Skip it, if you have an existing OpenOCD (from e.g. another development platform), as it may get overwritten.
.. note::
* Should an error occur, resolve it and try again until the command ``make`` works.
* If there is a submodule problem from OpenOCD, please ``cd`` to the ``openocd-esp32`` directory and input ``git submodule update --init``.
* If the ``./configure`` is successfully run, information of enabled JTAG will be printed under ``OpenOCD configuration summary``.
* If the information of your device is not shown in the log, use ``./configure`` to enable it as described in ``../openocd-esp32/doc/INSTALL.txt``.
* For details concerning compiling OpenOCD, please refer to ``openocd-esp32/README.OSX``.
Once ``make`` process is successfully completed, the executable of OpenOCD will be saved in ``~/esp/openocd-esp32/src/openocd`` directory.
Next Steps
==========
To carry on with debugging environment setup, proceed to section :ref:`jtag-debugging-configuring-esp32-target`.