Cortex-M3 low level assert issue.

[Jack Applegame]

On Wednesday, 8 May 2019 at 15:16:26 UTC, kinke wrote:
> On Wednesday, 8 May 2019 at 09:18:23 UTC, Jack Applegame wrote:
>> How difficult to fix it? I could donate money for the work.
>
> Should be straight-forward, but I fully agree with David and 
> would rather have LLVM provide that functionality - maybe it 
> already does and we just don't know about it yet. ;)

I tried to use `lld` instead of `arm-none-eabi-ld` and got some 
interesting results.
`lld` successfully removed unused string constants.

I found that there is special SFH_MERGE flag. The linker should 
remove unused constants and merge duplicates in sections marked 
with this flag. But it seems that the GNU linker ignores it.