https://sourceware.org/bugzilla/show_bug.cgi?id=20995

--- Comment #13 from Jiong Wang <jiwang at gcc dot gnu.org> ---
(In reply to Jiong Wang from comment #12)
> (In reply to Alan Modra from comment #11)
> > I deliberately left the arm FAILs showing.  They are telling you that -z
> > relro does not wotk on those target variants.  That should probably be 
> > fixed.
> 
> Reading the comment at
> https://sourceware.org/ml/binutils/2017-01/msg00094.html, I feel we should
> define COMMONPAGESIZE for arm-none-eabi, searching src/bfd and src/ld, the
> only usage of it is to initialize config.commonpagesize which is later used
> to expand "CONSTANT (COMMONPAGESIZE)" when COMMONPAGESIZE is used in linker
> script which only play a role when calculating relro_end.
> 
> If the runtime doesn't support GNU_RELRO, then I looks to me the user is
> responsible to make sure don't pass -z relro to the linker.

Hmm, but my testing shows define this will waste disk and mem size.... as there
will be ". = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT
(COMMONPAGESIZE));" after data segment.

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