On Mon, 2 Mar 2009, Andrew Morton wrote:
> On Tue, 3 Mar 2009 14:19:05 +1100 Stephen Rothwell <s...@canb.auug.org.au>
> wrote:
> > On Mon, 2 Mar 2009 18:55:14 -0800 Andrew Morton <a...@linux-foundation.org>
> > wrote:
> > > Using built-in specs.
> > > Target: powerpc64-unknown-linux-gnu
> > > Configured with:
> > > /home/axboe/crosstool-0.43/build/powerpc64-unknown-linux-gnu/gcc-4.1.0-glibc-2.3.6/gcc-4.1.0/configure
> > > --target=powerpc64-unknown-linux-gnu
> > > --host=x86_64-host_unknown-linux-gnu
> > > --prefix=/opt/crosstool/gcc-4.1.0-glibc-2.3.6/powerpc64-unknown-linux-gnu
> > > --disable-multilib
> > > --with-sysroot=/opt/crosstool/gcc-4.1.0-glibc-2.3.6/powerpc64-unknown-linux-gnu/powerpc64-unknown-linux-gnu/sys-root
> > >
> > > --with-local-prefix=/opt/crosstool/gcc-4.1.0-glibc-2.3.6/powerpc64-unknown-linux-gnu/powerpc64-unknown-linux-gnu/sys-root
> > > --disable-nls --enable-threads=posix --enable-symvers=gnu
> > > --enable-__cxa_atexit --enable-languages=c --enable-shared --enable-c99
> > > --enable-long-long
> > > Thread model: posix
> > > gcc version 4.1.0
> > >
> > > > I suspect you have a 64 bit only compiler and allnoconfig produces a 32
> > > > bit kernel. Is this a new error?
> > >
> > > 2.6.28 does the same thing. I don't recall having tested allnoconfig
> > > for ages if at all, so I don't know if it's a regression.
> >
> > Right, you have a 64 bit only compiler. Also it is version 4.1.0 which we
> > now black ban (I think).
>
> Probably. But I only use it for compilation testing, so the `Your
> version of gcc miscompiles the __weak directive' thing is a pointless
> PITA, so I patch it out.
>
> > You need to either build a biarch cross compiler (--enable-targets=all) or
> > try:
> >
> > $ cat >xxx <<EOF
> > CONFIG_PPC64=y
> > EOF
> > $ KCONFIG_ALLCONFIG=xxx make allnoconfig
> > $ make vmlinux
> >
> > let us know if that works :-)
>
> didn't. Oh well.
Does allnoconfig work if you force the compiler to be 32-bit, like
make CC="powerpc64-unknown-linux-gnu-gcc -m32"
? This is what I'm using to compile ppc32 kernels with the Cell SDK ppu-gcc43,
which defaults to -m64 (BTW, I also had to add "-mcpu=440" for gcc 4.3.2, which
I didn't need for the banned 4.1.1).
With kind regards,
Geert Uytterhoeven
Software Architect
Sony Techsoft Centre Europe
The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium
Phone: +32 (0)2 700 8453
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E-mail: geert.uytterhoe...@sonycom.com
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