From: Paul Mackerras <paulus@samba.org>
To: Roland McGrath <roland@redhat.com>
Cc: David Miller <davem@davemloft.net>, Adrian Bunk <bunk@stusta.de>,
linux-kernel@vger.kernel.org
Subject: Re: "build-id" changes break sparc64
Date: Mon, 23 Jul 2007 16:13:21 +1000 [thread overview]
Message-ID: <18084.18177.369567.679866@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <20070723060155.2B3824D0489@magilla.localdomain>
Roland McGrath writes:
> It turns out the problem here is that some .o files wind up with their own
> .note.gnu.build-id sections. I got the makefile magic wrong, thinking that
> LDFLAGS_MODULE was a variable specifically for .ko links. It's also used
> in cmd_link_multi-m.
Alan Modra (binutils hacker) has said to me in the past that using
ld -r to combine the objects in each directory is bad; he would much
rather that we gave all the individual objects to the final link,
since that enables ld to do better optimizations on some targets. We
could actually do that quite easily by making the built-in.o files be
linker scripts listing the individual objects rather than creating
them with ld -r.
Paul.
next prev parent reply other threads:[~2007-07-23 6:13 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-22 8:23 David Miller
2007-07-22 8:59 ` Roland McGrath
2007-07-23 2:18 ` David Miller
2007-07-23 6:01 ` Roland McGrath
2007-07-23 6:13 ` Paul Mackerras [this message]
2007-07-23 6:27 ` Sam Ravnborg
2007-07-23 7:26 ` Roland McGrath
2007-07-23 8:14 ` Sam Ravnborg
2007-07-23 8:18 ` Roland McGrath
2007-07-23 8:24 ` Sam Ravnborg
2007-07-23 9:25 ` Alan Modra
2007-07-23 11:49 ` Al Viro
2007-07-23 18:00 ` Sam Ravnborg
2007-07-23 18:56 ` Al Viro
2007-07-23 19:13 ` Adrian Bunk
2007-07-23 19:12 ` Roland McGrath
2007-07-23 19:39 ` Al Viro
2007-07-23 20:05 ` Roland McGrath
2007-07-23 20:33 ` Sam Ravnborg
2007-07-23 6:14 ` [PATCH] Move --build-id option Roland McGrath
2007-07-23 6:42 ` Sam Ravnborg
2007-07-23 8:09 ` Roland McGrath
2007-07-23 8:12 ` [PATCH] Use LDFLAGS_MODULE only for .ko links Roland McGrath
2007-07-23 8:16 ` Sam Ravnborg
2007-07-23 6:22 ` "build-id" changes break sparc64 Sam Ravnborg
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