Re: GCC-4 problems

[Manuel L. <ma...@ro...>]

Manuel Lauss wrote:
> Paul Mundt wrote:
>> On Mon, Mar 19, 2007 at 09:27:57AM +0100, Manuel Lauss wrote:
>>> Also, these exports need to be removed from sh_ksyms.c, they give
>>> "undefined reference" errors:
>>> __sdivsi3_i4i __udiv_qrnnd_16 __udivsi3_i4i
>>>
>> Ok, so removing these seems to be have created fallout all over the
>> place. Apparently it's just your GCC4 that seems to have problems with
>> these symbols, whereas the other ones really seem to want them. It looks
>> like we're going to have to narrow it down to the exact release in which
>> they vanished (I would guess 4.1.2, since 4.1.1 still wants them).
>>
>> akpm also suggests he has a 3.4.5 toolchain that needs these, which is
>> also very unusual. Do you have a tarball of your compiler somewhere so
>> it's easier to debug?
> 
> __udiv_qrnnd_16 was introduced by this GCC PR:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28014
> 
> I'll test 4.2.0 next.

Confirmed, 4.2.0 does not complain about undefined references.

So maybe those defines should be made dependent on gcc >= 4.2 ?
Although that wouldn't solve akpm's Problem with 3.4..

Thanks,
	Manuel Lauss