RFC: Use .plt section sh_entsize instead of GET_PLT_ENTRY_SIZE

[H.J. Lu]

On Mon, Aug 12, 2013 at 6:19 AM, Michael Matz <matz@suse.de> wrote:
> Hi,
>
> On Fri, 9 Aug 2013, H.J. Lu wrote:
>
>> We need to increase x86-64 PLT entry size to 32 bytes to
>> support Intel MPX.
>
> I don't like this at all.  The suggestion from Ian or Alan (don't
> remember) with multiple plts sounds much better.  Only 2 plt slots per
> icache line seems quite horrible when not needed.  IIRC you said "it
> sounds complicated" to that idea.  I say, "so what?".  Life is hard.
>

The main issue is the new shared libraries/executables must
work with the existing dynamic linker.

-- 
H.J.