Re: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1

Ingo Molnar
2009-01-02T18:34:33Z

* Sam Ravnborg <sam@ravnborg.org> wrote:

> On Fri, Jan 02, 2009 at 07:22:48PM +0100, Ingo Molnar wrote:
> >
> > * Sam Ravnborg <sam@ravnborg.org> wrote:
> >
> > > > And it all looks more logical too, imho.
> > >
> > > Bugger....
> > > Now I cannot do cross compile for: alpha, arm, m68k and sparc.
> >
> > hm, i just did a successful cross-build from x86 to alpha:
> >
> > KSYM .tmp_kallsyms2.S
> > AS .tmp_kallsyms2.o
> > LD vmlinux
> > SYSMAP System.map
> > SYSMAP .tmp_System.map
> >
> > phoenix:~/linux/linux> head -6 /dev/shm/tip/build/.config
> > #
> > # Automatically generated make config: don't edit
> > # Linux kernel version: 2.6.28
> > # Fri Jan 2 19:28:14 2009
> > #
> > CONFIG_ALPHA=y
> >
> > with these commits present:
> >
> > f9d1425: Disallow gcc versions 4.1.{0,1}
> > f153b82: Sanitize gcc version header includes
> >
> > what type of cross-build breakage do they cause?
>
> The default gcc made by demo-alpha with crosstool is version 4.1.0:
>
> /opt/crosstool/gcc-4.1.0-glibc-2.3.6/alpha-unknown-linux-gnu/bin/alpha-unknown-linux-gnu-gcc --version
> alpha-unknown-linux-gnu-gcc (GCC) 4.1.0
> Copyright (C) 2006 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions. There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

ah, ok. I build cross-compilers from scratch, so i have 4.3.3-pre:

phoenix:~/linux/linux> /opt/crossgcc/cross/bin/alpha-linux-gcc -v
[...]
gcc version 4.3.3 20081123 (prerelease) (GCC)

Ingo