Question about readelf output from shared library built with lld, gold, and bfd linkers

[Tom Kacvinsky]

On Mon, Nov 21, 2022 at 11:48 AM Nick Clifton <nickc@redhat.com> wrote:

> Hi Tom,
>
> > Also, a question: would -z combreloc make a difference with relocations
> at
> > startup?  I was just perusing the ld manual and ran across that.
>
> It may well do.  It is certainly worth a try.
>

Alas, no joy.  These are the types of fun problems I face at work - change
one of the tools
we use to build our product and one of our performance tests has a
regression.  Then it
is on me to figure out why.  But, to be honest, this is black magic to me.
I do not know
where to start looking to figure out why lld generates the final ELF file
that runs quicker
than what is generated by the gold linker.

So, I guess the next question is this - what should I look for in the files
generated by lld
and gold, respectively, using  readelf?

Thanks,

Tom