From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: Removal of NWFPE in its entirety, and VFP emulation code
Date: Wed, 10 Apr 2013 20:06:03 +0100 [thread overview]
Message-ID: <20130410190603.GL14496@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20130410190052.GC18196@blackmetal.musicnaut.iki.fi>
On Wed, Apr 10, 2013 at 10:00:52PM +0300, Aaro Koskinen wrote:
> Menuconfig mentions under "Floating point emulation" that "At least one
> emulation must be selected". But if I compile my OS with EABI userspace
> soft-float I guess I won't actually need to select any emulation,
> or have I missed something? (I just checked my configs, and at least
> on Kirkwood/openrd I have been already running without any emulation,
> so I guess the help text is wrong?)
Well, it's that way to stop us being flooded with "why does my kernel
stop after mounting the rootfs" questions. Maybe that can be changed
now, it depends whether we're absolutely certain that there's no FPA
instructions in any binary being run on EABI-only userspaces.
Given that such instructions will still be emulated if they're
encountered, I think we need to have another option to at least report
an error via the kernel message log should a FPA instruction be trapped.
next prev parent reply other threads:[~2013-04-10 19:06 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-10 10:40 Removal of NWFPE in its entirety, and VFP emulation code Russell King - ARM Linux
2013-04-10 11:18 ` Måns Rullgård
2013-04-10 11:42 ` Russell King - ARM Linux
2013-04-10 11:58 ` Måns Rullgård
2013-04-10 18:54 ` Russell King - ARM Linux
2013-04-10 19:23 ` Måns Rullgård
2013-04-10 20:03 ` Russell King - ARM Linux
2013-04-10 20:46 ` Måns Rullgård
2013-04-10 21:04 ` Russell King - ARM Linux
2013-04-10 21:18 ` Måns Rullgård
2013-04-10 21:29 ` Nicolas Pitre
2013-04-10 21:39 ` Måns Rullgård
2013-04-10 21:45 ` Russell King - ARM Linux
2013-04-10 22:21 ` Måns Rullgård
2013-04-10 23:19 ` Nicolas Pitre
2013-04-10 13:21 ` Will Deacon
2013-04-10 19:15 ` Russell King - ARM Linux
2013-04-10 17:30 ` Nicolas Pitre
2013-04-10 18:24 ` Steve McIntyre
2013-04-10 18:55 ` Russell King - ARM Linux
2013-04-10 18:58 ` Nicolas Pitre
2013-04-10 19:02 ` Russell King - ARM Linux
2013-04-11 18:37 ` Imre Kaloz
2013-04-10 19:00 ` Aaro Koskinen
2013-04-10 19:03 ` Nicolas Pitre
2013-04-10 19:06 ` Russell King - ARM Linux [this message]
2013-04-10 19:19 ` Nicolas Pitre
2013-04-10 19:25 ` Måns Rullgård
2013-04-10 20:04 ` Russell King - ARM Linux
2013-04-10 18:38 ` jonsmirl at gmail.com
2013-04-10 19:12 ` Russell King - ARM Linux
2013-04-10 21:46 ` Russell King - ARM Linux
2013-04-18 13:31 ` Russell King - ARM Linux
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