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Message-ID: <20190702210323.GA1506@brightrain.aerifal.cx>
Date: Tue, 2 Jul 2019 17:03:23 -0400
From: Rich Felker <dalias@...c.org>
To: musl@...ts.openwall.com
Subject: Re: [PATCH] remove stray .end directives
On Tue, Jul 02, 2019 at 07:53:53PM +0200, Markus Wichmann wrote:
> On Tue, Jul 02, 2019 at 12:58:41PM -0400, Rich Felker wrote:
> > On Tue, Jul 02, 2019 at 01:09:46PM +0000, Song Fangrui wrote:
> > > diff --git a/src/ldso/powerpc64/dlsym.s b/src/ldso/powerpc64/dlsym.s
> > > index 7eb691d9..a14715fd 100644
> > > --- a/src/ldso/powerpc64/dlsym.s
> > > +++ b/src/ldso/powerpc64/dlsym.s
> > > @@ -8,5 +8,4 @@ dlsym:
> > > .localentry dlsym,.-dlsym
> > > mflr 5 # The return address is arg3.
> > > b __dlsym
> > > - .end dlsym
> > > .size dlsym, .-dlsym
> >
> > This sounds right. Before I remove this, anyone have any idea what the
> > purpose of these was to begin with?
> >
> > Rich
>
> I can't tell you the purpose, but I can tell you the effect: This
> directive ends assembly parsing. Therefore the .size directive below
> them was never in effect before (if the documentation is to be trusted).
> Dunno if that has any apparent effect though (besides the output of
> objdump).
>
> The PPC64 file was added in one go by Bobby Bingham in 2016. I guess the
> line there is for consistency with PPC32. The PPC32 file was added in
> 2012 by rofl0r, though the blame also shows one Richard Pennington (not
> the log, though). Weird. Anyway, the log message is also not very
> enlightening. I can only assume the line was added in error. That, or
> the .size directive. Together they make no sense.
Thanks. Applying.
Rich
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