[PATCH v3 2/2] ARM: uncompress debug support for multiplatform build

On Fri, Feb 08, 2013 at 12:27:14PM +0000, Russell King - ARM Linux wrote:

On Fri, Feb 08, 2013 at 07:44:52PM +0800, Shawn Guo wrote:

quoted

Instead of giving zero support of uncompress debug for multiplatform
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.

It reuses the platform DEBUG_LL macros by creating a simple
arch/arm/boot/compressed/debug.S with CONFIG_DEBUG_LL_INCLUDE
included there, and implements a generic putc() using those macros.

Signed-off-by: Shawn Guo <redacted>
Acked-by: Olof Johansson <redacted>
---
Changes since v2:
 * Build arch/arm/boot/compressed/debug.S only for multiplatform kernel
   to fix the breakage on traditional platform build
 * Include asm/assembler.h in arch/arm/boot/compressed/debug.S, as it
   may commonly be needed by platforms to be converted to multiplatform

Russell,

I will put it into patch system if I do not receive any comment
tomorrow.

This doesn't address the problem with OMAP, which is that the OMAP debug
code places data into the .data section, and that is not allowed in the
decompressor.

My patches are based on v3.8-rc where OMAP hasn't been converted to
multiplatform.  But you are right, when the patches get into linux-next
it will cause problem for OMAP, since multiplatform is enabled for OMAP
on linux-next.  So should I base my patches on linux-next and fold a
fix for OMAP into the series?

Shawn