linux-kernel - Re: [PATCH] Fix for relocatable PowerPC kernels

Open Source and information security mailing list archives

Date:	Tue, 13 Jul 2010 11:21:28 +0200
From:	Vladimir 'φ-coder/phcoder' Serbinenko 
	<phcoder@...il.com>
To:	grub-devel@....org
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fix for relocatable PowerPC kernels

On 07/13/2010 07:45 AM, Anton Blanchard wrote:
> Hi,
>
> PowerPC Linux kernels can now be built relocatable so we need to check
> for that in the loader.
>
> Anton
>
>   
Is building as ET_DYN supported upstream? We previously had reports of
building system of some distros to be plainly borked and usualy the
distro fixed their building system pretty fast. If upstream supports
ET_DYN, then this patch is accepted with no further questions. But if
it's a borked building system it may have subtle bugs and allowing it
would probably just suppress an early symptom of other problems.
> --
>
> 2010-07-13  Anton Blanchard  <anton@...ba.org>
>
> 	* loader/powerpc/ieee1275/linux.c (grub_cmd_linux): Do not reject
> 	ET_DYN files.
>
> Index: grub/loader/powerpc/ieee1275/linux.c
> ===================================================================
> --- grub.orig/loader/powerpc/ieee1275/linux.c	2010-07-11 12:05:16.443242734 +1000
> +++ grub/loader/powerpc/ieee1275/linux.c	2010-07-12 14:56:20.301991065 +1000
> @@ -220,7 +220,7 @@ grub_cmd_linux (grub_command_t cmd __att
>    if (! elf)
>      goto out;
>  
> -  if (elf->ehdr.ehdr32.e_type != ET_EXEC)
> +  if (elf->ehdr.ehdr32.e_type != ET_EXEC && elf->ehdr.ehdr32.e_type != ET_DYN)
>      {
>        grub_error (GRUB_ERR_UNKNOWN_OS,
>  		  "this ELF file is not of the right type");
>
> _______________________________________________
> Grub-devel mailing list
> Grub-devel@....org
> http://lists.gnu.org/mailman/listinfo/grub-devel
>
>   


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko


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