[Buildroot] grub2 failure with gcc-4.9

Thierry Bultel tbultel at free.fr
Thu Feb 5 16:15:13 UTC 2015


Le 05/02/2015 14:20, Thomas Petazzoni a écrit :
> Dear Thierry Bultel,
>
> On Thu, 05 Feb 2015 13:54:17 +0100, Thierry Bultel wrote:
>
>> After some (printf) debugging, I found out that when 'loading' the
>> builtin modules at startup, some modules names are corrupted.
>> I am about to get into deeper investigation, but has anyone
>> encountered it ?
>
> Interesting.
>
> First suggestions:
>
>   - try with another gcc 4.9 toolchain (distro toolchain or something)
>
>   - try with different optimization levels (default of Buildroot is -Os,
>     try with -O0 and -O2)
>
> Thomas
>

With gcc-4.9 from Ubuntu

(in grub2.mk, I set TARGET_CC="/usr/bin/gcc" \
	TARGET_CFLAGS="-m32" \
)

... grub hangs.




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