lkml.org 
[lkml]   [2008]   [Nov]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Immortal CONFIG_DEBUG_INFO=y
On Sun, Nov 16, 2008 at 10:42:01AM +0300, Alexey Dobriyan wrote:
> As known to everybody doing fat builds, banning DEBUG_INFO=y is mandatory,
> otherwise build is slower and takes much more disk space. And to not
> accidently enable it, banning it in kconfig:
>
> @@ -475,7 +475,7 @@ config DEBUG_BUGVERBOSE
>
> config DEBUG_INFO
> bool "Compile the kernel with debug info"
> - depends on DEBUG_KERNEL
> + depends on DEBUG_KERNEL && DISABLED
> help
> If you say Y here the resulting kernel image will include
> debugging info resulting in a larger kernel image.
>
> This works pretty well -- allmodconfig generates config without DEBUG_INFO and
> so on, defconfigs also regenerated without it, even if original one in arch/
> has DEBUG_INFO enabled and so on. Trick also works for other options, like,
> KALLSYMS_EXTRA_PASS.
>
> Except one case:
>
> make ARCH=sh magicpanelr2_defconfig
>
> DEBUG_INFO survives to .config and resulting build runs with -g.

Because that defconfig does:
CONFIG_SH_KGDB=y

and SH_KGDB does:
select DEBUG_INFO

Instead of editing the Kconfig file you should use the KCONFIG_ALLCONFIG trick.
See README for usage.

Sam


\
 
 \ /
  Last update: 2008-11-16 08:51    [W:0.024 / U:7.296 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site