Code coverage via GCOV

[Sebastian Huber]

On 10/11/2020 13:58, Sebastian Huber wrote:

> Hello,
>
> I reviewed a bit how the code coverage information is produced by GCC 
> and what libgcov does. I think if we want to use GCOV in RTEMS to get 
> code coverage in all system states, then we need some tweaks in GCC:
>
> https://gcc.gnu.org/pipermail/gcc/2020-November/234164.html

The linker set based gcov information registration is already included 
in GCC:

https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html#index-fprofile-info-section

There is a discussion about how the gcov information can be transferred 
from the embedded system to the host:

https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html#index-fprofile-info-section

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