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Date: Sun, 7 Aug 2016 00:17:18 -0400 (EDT)
From: Nicolas Pitre <nicolas.pitre@linaro.org>
To: Stephen Rothwell <sfr@canb.auug.org.au>
cc: Sam Ravnborg <sam@ravnborg.org>, Nicholas Piggin <npiggin@gmail.com>,
 linux-kbuild@vger.kernel.org, linux-arch@vger.kernel.org,
 linuxppc-dev@lists.ozlabs.org, Arnd Bergmann <arnd@arndb.de>,
 Segher Boessenkool <segher@kernel.crashing.org>,
 Alan Modra <amodra@gmail.com>
Subject: Re: [PATCH 1/5] kbuild: allow architectures to use thin archives
 instead of ld -r
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On Sun, 7 Aug 2016, Stephen Rothwell wrote:

> Hi Sam,
> 
> On Sat, 6 Aug 2016 22:10:45 +0200 Sam Ravnborg <sam@ravnborg.org> wrote:
> >
> > Did you by any chance evalue the use of INPUT in linker files.
> > Stephen back then (again based on proposal from Alan Modra),
> > also made an implementation using INPUT.
> 
> The problem with that idea was that (at least for some versions of
> binutils in use at the time) we hit a static limit to the number of
> object files and ld just stopped at that point. :-(

I played with a nearly identical patch to work around the inability to 
do LTO and 'ld -r' with mainline binutils.  However this also requires 
major changes to modpost otherwise it becomes ineffective.


Nicolas