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  Microframework → μfw → ufw — Embedded Support Library
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‘ufw’ is a support library for embedded  development. It started out as a sand-
box for trying implementions or various  kinds. It then quickly became a reser-
voir for  various utilities that come  in handy when building  modular embedded
applications: Version  control integration;  CMake build system  extensions and
embedded toolchain files; zephyr impedance mismatch management; a very portable
implementation of a  TAP emitting testing API; startup code  and a cortex-m3 to
run test-suites for  this architecture via qemu; toolchain  feature testing and
portable enabling, and more.

Commonly, ‘ufw’ is part of a larger  source-tree that leverages it to build em-
bedded applications. It is also possible  to build ‘ufw’ using many toolchains,
build-tools, build configurations and the  like. To automate the required cmake
incantations, you can use the library's companion tool ‘mmh’:

    % mmh

…builds as many  combinations of ‘ufw’ as  it can and reports  the results. All
build results will be cleaned up afterwards.

    % mmh -d ci

…will do the same, but perform all builds inside the ’ci’ subdirectory and will
keep it around after all work is done.  You can also select parts of all combi-
nations of builds:

    % mmh -d ci -T clang,gnu -A native -B ninja -C debug

…only builds ‘ufw’ using the ‘clang’ and ‘gnu’ toolchains in ‘debug’ configura-
tion using the ‘ninja’ build tool. While this:

    % mmh -d ci -T gnu-arm-none-eabi -A cortex-m3 -B ninja -C debug

…builds the library  for the ‘cortex-m3’ architecture  in ‘debug’ configuration
using ‘ninja’. If a ‘system-arm’ qemu  implementation is found on the host sys-
tem, ufw's cortex-m3  startup code is used to run  the library's test-suite via
qemu.

The ‘mmh’ tool can be found here:   https://github.com/ft/makemehappy