linux-kernel - Re: [PATCH] initcall: add config option for compiling initcall

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Date:	Sun, 27 Mar 2011 10:43:32 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Konstantin Khlebnikov <khlebnikov@...nvz.org>
Cc:	<linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] initcall: add config option for compiling
 initcall_debug

On Sun, 27 Mar 2011 15:55:06 +0400 Konstantin Khlebnikov wrote:

> Add bool config option CONFIG_INITCALL_DEBUG for compiling initcalls debuging,
> make it on by default to keep current behaviour.

Typo fixes only:


> Signed-off-by: Konstantin Khlebnikov <khlebnikov@...nvz.org>
> ---
>  Documentation/kernel-parameters.txt |    2 +-
>  include/linux/init.h                |    4 ++++
>  init/main.c                         |    2 ++
>  kernel/async.c                      |    4 +---
>  lib/Kconfig.debug                   |    7 +++++++
>  5 files changed, 15 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
> index c357a31..ea3843a 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -970,7 +970,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
>  
>  	initcall_debug	[KNL] Trace initcalls as they are executed.  Useful
>  			for working out where the kernel is dying during
> -			startup.
> +			startup. This depend on CONFIG_INITCALL_DEBUG option.

			              depends on the CONFIG_INITCALL_DEBUG option.

>  
>  	initrd=		[BOOT] Specify the location of the initial ramdisk


> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index df9234c..ebc1357 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -807,6 +807,13 @@ config DEBUG_CREDENTIALS
>  
>  	  If unsure, say N.
>  
> +config INITCALL_DEBUG
> +	bool "Debug kernel initcalls"
> +	default y
> +	help
> +	  This build option allow you trace initcalls after

	                    allows you to trace initcalls by

> +	  adding "initcall_debug" to kernel command line.

	                          to the kernel command line.

> +
>  #
>  # Select this config option from the architecture Kconfig, if it
>  # it is preferred to always offer frame pointers as a config


---
~Randy
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