V2 [PATCH] Check multiple NT_GNU_PROPERTY_TYPE_0 notes [BZ #23509]

[H.J. Lu]

On Thu, Nov 8, 2018 at 9:41 AM Florian Weimer <fweimer@redhat.com> wrote:
>
> * H. J. Lu:
>
> > Here is the updated patch with
> >
> > Linkers group input note sections with the same name into one output
> > note section with the same name.  One output note section is placed in
> > one PT_NOTE segment.  Since new linkers merge input .note.gnu.property
> > sections into one output .note.gnu.property section, there is only
> > one NT_GNU_PROPERTY_TYPE_0 note in one PT_NOTE segment with new linkers.
> > Since older linkers treat input .note.gnu.property section as a generic
> > note section and just concatenate all input .note.gnu.property sections
> > into one output .note.gnu.property section without merging them, we may
> > see multiple NT_GNU_PROPERTY_TYPE_0 notes in one PT_NOTE segment with
> > older linkers.
>
> Thanks.  This hypothesis regarding older linkers seems reasonable, and
> the explanation is very clear now.  The code looks okay to me.

I checked it into master branch.

> Would you please backport this to the 2.28 release branch as well?
>

I am backporting this patch to 2.28 branch.

-- 
H.J.
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