[U-Boot] [PATCH v2] x86: Wrap small helper functions from libgcc to avoid an ABI mismatch

[Graeme Russ]

On Wed, Nov 9, 2011 at 3:49 PM, Mike Frysinger <vapier at gentoo.org> wrote:
> On Tuesday 08 November 2011 18:14:46 Graeme Russ wrote:
>> Ah, yes you have - Can you give me a list? I think to be pragmatic we
>> should either wrap the all or go down the private libgcc path like ARM has
>> done. Private lib functions would elliminate the overhead, but is this
>> really such a problem anyway?
>
> it then becomes a sync issue ... updates to gcc's libgcc aren't reflected in u-
> boot automatically ...

Are those updates needed? We already have a fair chunk of libc which
is not automatically sync'd and going by what is in arch/arm/lib,
there are very few libgcc functions (far less than libc) and each of
those are relatively trivial and unlikely to require updating.

Also, I already know of issues compiling U-Boot on an x64 OS because
of the 32/64 bit incompatibility of libgcc. I never encountered this
because I only have a 32-bit build machine

So the handful of libgcc functions are starting to become a
disproportionate headache

Regards,

Graeme