Re: RFD: Kernel release numbering

[Russell King]

On Fri, Mar 04, 2005 at 03:44:10AM -0800, Andrew Morton wrote:
> Russell King <rmk+lkml@xxxxxxxxxxxxxxxx> wrote:
> > On Fri, Mar 04, 2005 at 03:26:32AM -0800, Andrew Morton wrote:
> > > Russell King <rmk+lkml@xxxxxxxxxxxxxxxx> wrote:
> > > >
> > > > On Wed, Mar 02, 2005 at 08:38:12PM -0800, Andrew Morton wrote:
> > > >  > Grump.  Have all these regressions received the appropriate level of
> > > >  > visibility on this mailing list?
> > > > 
> > > >  Looking at the http://l4x.org/k/ site, it appears that all -mm versions
> > > >  have broken ARM support with the defconfig, while Linus kernels at least
> > > >  build fine.
> > > 
> > > It's very much in an arch maintainer's interest to make sure that
> > > cross-compilers are easily obtainable.  Any hints?
> > 
> > Been trying to achieve that since it's a FAQ on ARM lists.  Even gone to
> > the extent of setting up a separate mailing list, getting a volunteer to
> > track what people want and do the hard work to build them.  That was
> > about 6 months ago, and I haven't seen any results.
> 
> hm.  That's strange.  I'd have thought that 99% of the arm embedded
> developers cross-build.

Yes - I think Dan Kegel's cross-tool gets used a fair bit...

> > Anyway, going back to why -mm doesn't work:
> > 
> >  arch/arm/kernel/built-in.o(.init.text+0xb64): In function `$a':
> >  : undefined reference to `rd_size'
> >  make[1]: *** [.tmp_vmlinux1] Error 1

Actually, this highlights another problem - it's ARM binutils again.
Jan's cross-binutils for ARM doesn't contain the patches to make the
linker resolve addresses to the _correct_ symbol.  Don't ask me
where they are, but I'm lead to believe that cross-tool knows.

This also means that Jan's compile test is rather worthless for ARM -
it might be linking a kernel with undefined symbols due to the other
assembler bug.

> Ah.  Fixed, thanks.

Thanks.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core
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