linux-kernel - Re: "build-id" changes break sparc64

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <18084.18177.369567.679866@cargo.ozlabs.ibm.com>
Date:	Mon, 23 Jul 2007 16:13:21 +1000
From:	Paul Mackerras <paulus@...ba.org>
To:	Roland McGrath <roland@...hat.com>
Cc:	David Miller <davem@...emloft.net>, Adrian Bunk <bunk@...sta.de>,
	linux-kernel@...r.kernel.org
Subject: Re: "build-id" changes break sparc64

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.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/