From: Paul Mackerras <paulus@samba.org>
To: Ingo Oeser <ioe-lkml@axxeo.de>
Cc: David Gibson <david@gibson.dropbear.id.au>,
Andrew Morton <akpm@osdl.org>, Anton Blanchard <anton@samba.org>,
linuxppc64-dev@lists.linuxppc.org, linux-kernel@vger.kernel.org
Subject: Re: [PPC64] Allow emulation of mfpvr on ppc64 kernel
Date: Fri, 11 Mar 2005 13:34:28 +1100 [thread overview]
Message-ID: <16945.948.350317.549743@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <200503102317.04027.ioe-lkml@axxeo.de>
Ingo Oeser writes:
> Why not putting the required information into the AUX table
> when executing your ELF programs? I loved this feature in the
> ix86 arch.
We do put an AT_HWCAP entry in the aux table, which is a bitmap of
features supported by the cpu. But for some applications, such as
programming the performance monitor hardware, you need to know the
specific CPU model and version, and this is a way to provide that
information.
Paul.
prev parent reply other threads:[~2005-03-11 2:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-10 2:18 David Gibson
2005-03-10 22:17 ` Ingo Oeser
2005-03-11 0:11 ` David Gibson
2005-03-11 2:34 ` Paul Mackerras [this message]
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