Re: [PATCH 3/7] [HACK] pass endianess flag to LTO linker

[Arnd Bergmann]

On Wed, Feb 21, 2018 at 4:15 AM, Nicolas Pitre <nicolas.pitre@xxxxxxxxxx> wrote:
> On Tue, 20 Feb 2018, Arnd Bergmann wrote:
>
>> We need some way to pass -mbig-endian to the linker during the
>> LTO link stage, otherwise we get a waning like
>>
>> arm-linux-gnueabi/bin/ld: arch/arm/lib/clearbit.o: compiled for a big endian system and target is little endian
>>
>> for each file we link in.
>>
>> There is probably a better method of passing that flag, I'm just
>> adding it to a different hack that I added earlier for x86 LTO
>> here.
>
> Didn't the patch below fix it for you already?

I think the problem here is that -mbig-endian is part of KBUILD_CPPFLAGS,
not KBUILD_CFLAGS. We add the latter to the gcc-ld command line, but not
the former.

      Arnd