[Buildroot] grub2 failure with gcc-4.9
tbultel at free.fr
Thu Feb 5 14:56:00 UTC 2015
Le 05/02/2015 15:16, Thierry Bultel a écrit :
> 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 ?
>> 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)
> It seems that when building the target part, grub is using CXXFLAGS
> (from $(HOST_CONFIGURE_OPTS)) in addition of TARGET_CFLAGS.
> Thus we have both -0s and -O2 in command line.
> Unfortunately that is not the cause of the bug, because -02 (twice)
> makes it happen.
> Trying another toolchain ...
FYI, loops rebooting with gcc-4.7 from
More information about the buildroot