# Building OpenOCD from Sources for Linux

[中文]

The following instructions are alternative to downloading binary OpenOCD from Espressif GitHub. To quickly setup the binary OpenOCD, instead of compiling it yourself, backup and proceed to section Setup of OpenOCD.

## Download Sources of OpenOCD

The sources for the ESP32-C6-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.

Note

Install the following packages one by one, check if installation was successful and then proceed to the next package. Resolve reported problems before moving to the next step.

    sudo apt-get install make
    sudo apt-get install libtool
    sudo apt-get install pkg-config
    sudo apt-get install autoconf
    sudo apt-get install automake
    sudo apt-get install texinfo
    sudo apt-get install libusb-1.0

Note

- Version of pkg-config should be 0.2.3 or above.

- Version of autoconf should be 2.6.4 or above.

- Version of automake should be 1.9 or above.

- When using USB-Blaster, ASIX Presto, OpenJTAG and FT2232 as adapters, drivers libFTDI and FTD2XX need to be downloaded and installed.

- When using CMSIS-DAP, HIDAPI is needed.

## 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`.

Once `make` process is successfully completed, the executable of OpenOCD will be saved in `~/openocd-esp32/bin` directory.

## Next Steps

To carry on with debugging environment setup, proceed to section Configuring ESP32-C6 Target.

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