From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/3] ARM: debug: use kconfig choice for selecting DEBUG_LL UART
Date: Sun, 21 Aug 2011 21:54:41 +0100 [thread overview]
Message-ID: <20110821205441.GC19678@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <alpine.LFD.2.00.1108211557440.20358@xanadu.home>
On Sun, Aug 21, 2011 at 04:07:37PM -0400, Nicolas Pitre wrote:
> On Sun, 21 Aug 2011, Russell King - ARM Linux wrote:
>
> > And further to this, I'll point out that the debugging functions are
> > *explicitly* designed to avoid corrupting any more than just r0-r3
> > and lr. That's not just the IO functions but also the hex and string
> > printing functions.
> >
> > And the head*.S code is explicitly written to expect r0-r3 to be
> > corrupted - which basically means that no long-term values are held in
> > those registers.
>
> Well, not exactly. I actually have a patch to that effect I made a
> while ago so all the early code could be unaffected by inserted function
> call, but held on to it because nothing yet justified its need. Here it
> is for reference:
And so this buggers up the ability to insert calls to the debugging code
by placing values into r0-r3. So that patch will get a nak too.
next prev parent reply other threads:[~2011-08-21 20:54 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-16 21:41 [PATCH 1/3] ARM: debug: use kconfig choice for selecting DEBUG_LL UART Will Deacon
2011-08-16 21:41 ` [PATCH 2/3] ARM: plat-samsung: use Kconfig choice for debug UART selection Will Deacon
2011-10-10 11:56 ` Thomas Abraham
2011-10-10 12:23 ` Will Deacon
2011-10-10 12:35 ` Thomas Abraham
2011-10-10 13:34 ` Will Deacon
2011-10-10 13:38 ` Thomas Abraham
2011-08-16 21:41 ` [PATCH 3/3] ARM: realview: " Will Deacon
2011-08-18 4:06 ` [PATCH 1/3] ARM: debug: use kconfig choice for selecting DEBUG_LL UART Nicolas Pitre
2011-08-18 9:33 ` Will Deacon
2011-08-18 16:11 ` Shawn Guo
2011-08-18 16:07 ` Will Deacon
2011-08-19 4:59 ` Shawn Guo
2011-08-19 11:08 ` Will Deacon
2011-08-19 11:37 ` Shawn Guo
2011-08-19 12:32 ` Will Deacon
2011-08-19 15:49 ` Nicolas Pitre
2011-08-21 9:14 ` Russell King - ARM Linux
2011-08-21 17:35 ` Nicolas Pitre
2011-08-21 18:26 ` Russell King - ARM Linux
2011-08-21 19:02 ` Nicolas Pitre
2011-08-21 19:18 ` Russell King - ARM Linux
2011-08-21 19:22 ` Russell King - ARM Linux
2011-08-21 20:07 ` Nicolas Pitre
2011-08-21 20:54 ` Russell King - ARM Linux [this message]
2011-08-21 21:00 ` Nicolas Pitre
2011-08-21 21:29 ` Russell King - ARM Linux
2011-08-21 22:00 ` Nicolas Pitre
2011-08-21 19:53 ` Nicolas Pitre
2011-09-06 9:28 ` Tony Lindgren
2011-09-06 9:37 ` Russell King - ARM Linux
2011-09-06 10:27 ` Tony Lindgren
2011-09-06 10:52 ` Russell King - ARM Linux
2011-09-06 11:01 ` Tony Lindgren
2011-09-06 11:07 ` Russell King - ARM Linux
2011-09-06 19:45 ` Uwe Kleine-König
2011-08-19 14:54 ` Nicolas Pitre
2011-08-19 4:56 ` [PATCH] arm/imx: use Kconfig choice for low-level debug UART selection Shawn Guo
2011-08-19 6:35 ` Sascha Hauer
2011-08-19 7:00 ` Shawn Guo
2011-08-19 11:09 ` Will Deacon
2011-08-19 11:39 ` Sascha Hauer
2011-08-19 12:35 ` Will Deacon
2011-08-19 17:15 ` Sascha Hauer
2011-08-21 9:18 ` Russell King - ARM Linux
2011-08-21 11:25 ` Will Deacon
2011-08-21 17:59 ` Nicolas Pitre
2011-08-21 18:17 ` Russell King - ARM Linux
2011-08-21 18:28 ` Nicolas Pitre
2011-08-21 18:33 ` Russell King - ARM Linux
2011-11-22 8:58 ` Uwe Kleine-König
2011-11-22 11:50 ` Will Deacon
2011-11-22 13:02 ` Uwe Kleine-König
2011-11-22 13:20 ` Will Deacon
2011-11-22 13:30 ` Uwe Kleine-König
2011-11-22 15:48 ` Russell King - ARM Linux
2011-11-22 16:38 ` Uwe Kleine-König
2011-11-22 16:47 ` Mark Brown
2011-11-22 17:13 ` Uwe Kleine-König
2011-11-22 20:24 ` Russell King - ARM Linux
2011-11-22 21:19 ` Arnd Bergmann
2011-11-22 23:00 ` Mark Brown
2011-11-23 10:57 ` Will Deacon
2011-09-15 17:34 ` [PATCH 1/3] ARM: debug: use kconfig choice for selecting DEBUG_LL UART Stephen Boyd
2011-09-16 11:41 ` Will Deacon
2011-09-19 18:01 ` [PATCH 1/2] ARM: debug: Add CLSP711X_UART1 config choice Stephen Boyd
2011-09-19 18:01 ` [PATCH 2/2] ARM: debug: Move DEBUG_ICEDCC into the DEBUG_LL choice Stephen Boyd
2011-09-19 21:25 ` [PATCH 1/2] ARM: debug: Add CLSP711X_UART1 config choice Will Deacon
2011-09-19 22:12 ` Stephen Boyd
2011-09-19 22:41 ` Russell King - ARM Linux
2011-09-19 22:55 ` Stephen Boyd
2011-11-22 20:42 ` Russell King - ARM Linux
2011-09-19 23:14 ` Will Deacon
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