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.. SPDX-License-Identifier: GPL-2.0+
.. sectionauthor:: Bin Meng <bmeng.cn@gmail.com>
Host tools
==========
Building tools for Linux
------------------------
To allow distributions to distribute all possible tools in a generic way,
avoiding the need of specific tools building for each machine, a tools only
defconfig file is provided.
Using this, we can build the tools by doing::
$ make tools-only_defconfig
$ make tools-only
Building tools for Windows
--------------------------
If you wish to generate Windows versions of the utilities in the tools directory
you can use MSYS2, a software distro and building platform for Windows.
Download the MSYS2 installer from https://www.msys2.org. Make sure you have
installed all required packages below in order to build these host tools::
* gcc (9.1.0)
* make (4.2.1)
* bison (3.4.2)
* diffutils (3.7)
* openssl-devel (1.1.1.d)
Note the version numbers in these parentheses above are the package versions
at the time being when writing this document. The MSYS2 installer tested is
http://repo.msys2.org/distrib/x86_64/msys2-x86_64-20190524.exe.
There are 3 MSYS subsystems installed: MSYS2, MinGW32 and MinGW64. Each
subsystem provides an environment to build Windows applications. The MSYS2
environment is for building POSIX compliant software on Windows using an
emulation layer. The MinGW32/64 subsystems are for building native Windows
applications using a linux toolchain (gcc, bash, etc), targeting respectively
32 and 64 bit Windows.
Launch the MSYS2 shell of the MSYS2 environment, and do the following::
$ make tools-only_defconfig
$ make tools-only
Building without Python
-----------------------
The tools-only builds bytes pylibfdt by default. To disable this, use the
NO_PYTHON variable::
NO_PYTHON=1 make tools-only_defconfig tools-only
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