Re: GCC-4 problems

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

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

Oh, sorry, that wasn't my intention at all.

> 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?

Prompted by your mail I reverted commit
9c5b406b9a857a67caf778f096bfc7f4e6b0401a and GCC builds the kernel
just fine now; the only difference is that I've upgraded from 4.1.1 to 4.1.2
in the meantime.

Compiler is made with Gentoo's "crossdev" tool, which AFAICT is vanilla
4.1.2 with a few bugfix patches applied (+ PR29599 fix for me)
(see http://gentoo.inode.at/distfiles/gcc-4.1.2-patches-1.0.1.tar.bz2)

I can rebuild gcc-4.1.1 which failed for me if you like.

Thank you,

	Manuel Lauss