Re: gcc-4.2.0 breakage on powerpc?

On Sat, 19 May 2007 18:11:20 +0200, Segher Boessenkool wrote:

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and we'll end up
having major kernel releases which don't build on i386 with major 
gcc
releases, which isn't altogether desirable.

Yeah, like 4.2.0 with powerpc.  Seems like no one tested it :-(

Details please. What exactly are the gcc-4.2.0 problems on powerpc?

http://gcc.gnu.org/PR31490 .  Most stuff using named
sections won't build; that includes CONFIG_MODULES.
There is no viable workaround.  The problem is being
handled.  I'll post a patch for the kernel refusing
to build with this combination soon.

[Cc:ing the PowerPC list]

Oh btw, most likely this is a problem on 64-bit only.

I believe so too. PR31490 mostly talks about ppc64,
and I've built both ppc32 kernels and complex ppc32
user-space programs with gcc-4.2.0 without noticing
any regressions.

/Mikael