From: Roland McGrath <roland@redhat.com>
To: Masami Hiramatsu <mhiramat@redhat.com>
Cc: wenji.huang@oracle.com, SystemTAP <systemtap@sources.redhat.com>
Subject: Re: [PATCH 3/3] PR4886: Check build-id in module_init function if able.
Date: Wed, 01 Oct 2008 21:44:00 -0000 [thread overview]
Message-ID: <20081001214334.D83241544B4@magilla.localdomain> (raw)
In-Reply-To: Masami Hiramatsu's message of Wednesday, 1 October 2008 17:38:36 -0400 <48E3EDDC.8000000@redhat.com>
> I'm not sure when the build-id is updated, but interested in your
> enhancement. :-)
> If I'm using an out-of-tree driver, is build-id updated when I updated
> the driver's source code but didn't change running kernel?
> In other words, would each driver have its build-id which is different
> from other drivers and kernel?
Yes, every non-identical build of a .ko file should result in a distinct
build ID embedded in that .ko file. Only if you rebuild the same code to
get the same binary should get you the same build ID. (The build IDs of
the related kernel or of other .ko's have nothing to do with this.)
Thanks,
Roland
next prev parent reply other threads:[~2008-10-01 21:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-28 2:26 Wenji Huang
2008-09-28 13:38 ` Frank Ch. Eigler
2008-09-30 16:29 ` Elena Zannoni
2008-10-01 21:41 ` Masami Hiramatsu
2008-10-01 21:44 ` Roland McGrath [this message]
2008-10-01 21:45 ` Frank Ch. Eigler
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