[patch] Dead-strip binaries by default on OS X and posix (was: Reduce size of clang-format by 87% on OS X)

[Nico Weber]

On Thu, Jan 2, 2014 at 6:45 AM, Joerg Sonnenberger
<joerg at britannica.bec.de>wrote:

> On Fri, Dec 27, 2013 at 02:04:10PM -0800, Eric Christopher wrote:
> > On Fri, Dec 27, 2013 at 2:01 PM, Joerg Sonnenberger
> > <joerg at britannica.bec.de> wrote:
> > > On Fri, Dec 27, 2013 at 11:12:40AM -0800, Nico Weber wrote:
> > >> Something like the attached patch? (Make-only again, but now
> including the
> > >> linux bits. If folks like it, I can do the cmake part as a followup.)
> > >
> > > Does it get applied for shared libraries? I don't think it makes sense
> > > in that situation.
> > >
> >
> > These have export lists etc.
>
> I mean: building the shared library code with -ffunction-section
> -fdata-section is just going to blow up the object files at best and
> make the linker slower. It's not really about exporting symbols.
>

Much of the code (llvm core libs, clang core libs) is shared by many of the
tools (libclang, clang, clang-format, opt, etc). Since most of the tools
want stripping, the shared code needs to be built with these flags (or be
compiled twice for the different libs). Do you have measurements showing
that linking got slower for the targets you care about?


>
> Joerg
> _______________________________________________
> cfe-commits mailing list
> cfe-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20140102/e26d9757/attachment.html>