From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 2/2] ARM: uncompress debug support for multiplatform build
Date: Wed, 13 Mar 2013 11:19:46 +0000 [thread overview]
Message-ID: <201303131119.46580.arnd@arndb.de> (raw)
In-Reply-To: <1363144715-12002-1-git-send-email-shawn.guo@linaro.org>
On Wednesday 13 March 2013, Shawn Guo wrote:
> build, the patch turns uncompress debug into one part of DEBUG_LL
> support. When DEBUG_LL is turned on for a particular platform,
> uncompress debug works too for that platform.
>
> OMAP and Tegra are exceptions here. OMAP low-level debug code places
> data in the .data section, and that is not allowed in decompressor.
> And Tegra code has reference to variable that's unavailable in
> decompressor but only in kernel. That's why Kconfig symbol
> DEBUG_UNCOMPRESS controlling multiplatform uncompress debug support is
> defined with !DEBUG_OMAP2PLUS_UART && !DEBUG_TEGRA_UART.
>
> It creates arch/arm/boot/compressed/debug.S with CONFIG_DEBUG_LL_INCLUDE
> included there, implements a generic putc() using those macros, which
> will be built when DEBUG_UNCOMPRESS is defined.
>
> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
> Acked-by: Olof Johansson <olof@lixom.net>
> Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
next prev parent reply other threads:[~2013-03-13 11:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-11 11:35 [PATCH v4 0/2] Uncompress debug for multiplatform Shawn Guo
2013-03-11 11:35 ` [PATCH v4 1/2] ARM: use Kconfig to select uncompress.h Shawn Guo
2013-03-11 11:35 ` [PATCH v4 2/2] ARM: uncompress debug support for multiplatform build Shawn Guo
2013-03-11 17:36 ` Tony Lindgren
2013-03-13 3:18 ` [PATCH v5 " Shawn Guo
2013-03-13 11:19 ` Arnd Bergmann [this message]
2013-03-11 17:03 ` [PATCH v4 0/2] Uncompress debug for multiplatform Russell King - ARM Linux
2013-03-11 17:30 ` Stephen Warren
2013-03-12 4:02 ` Shawn Guo
2013-03-12 18:23 ` Stephen Warren
2013-03-13 2:21 ` Shawn Guo
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