CMake support

[Robin Müller]

Thank you Sebastian. I'm looking at building the example erc32 application
and the blinky executable right now. There is the issue
that determining the BSP path,tool binary determination, all the checking
etc.. bleeds into the application CMakeLists.txt but there is
probably a good way to extract that checking into an external file. It
might even possible to make this generic.

Maybe this would also be interesting for the QuickStart guide or the
examples in general so if you are interested
I could submit a patch for this (if everything works out as expected).

Kind Regards
Robin

On Wed, 9 Dec 2020 at 13:59, Sebastian Huber <
sebastian.huber at embedded-brains.de> wrote:

> Hello Robin,
>
> you can use whatever build system you want to build your applications.
> You can use pkgconfig to get the necessary flags for a particular BSP
> installation.
>
> On 09/12/2020 13:50, Robin Müller wrote:
> > I also had another question about a specific flag used when linking
> > RTEMS executables.
> > The link command for the example application is the following:
> >
> > arm-rtems6-gcc -mthumb -mcpu=cortex-m7 -mfpu=fpv5-d16 -mfloat-abi=hard
> > -I=$RTEMS_INST/arm-rtems6/stm32h7/lib/include -MMD
> > -B$RTEMS_INST/arm-rtems6/stm32h7/lib -Wl,--gc-sections init.c.1.o
> > led.c.1.o stm32h7xx_nucleo.c.1.o -o blinky-test.elf -Wl,-Bstatic
> > -Wl,-Bdynamic -qrtems
> >
> > Can anyone tell me the meaning of the -q flag? I did not find anything
> > by running arm-rtems6-gcc --help
>
> This flag selects the right GCC specification for RTEMS. It is
> necessary, just use it.
>
> If you want to know how it works, you have to learn the GCC
> specification format. For a start you can use "arm-rtems6-gcc -dumpspecs".
>
> --
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