Le vendredi 09 décembre 2005 à 20:31 -0500, Lee Revell a écrit :
> On Fri, 2005-12-09 at 23:43 +0100, Xavier Bestel wrote:
> > Le vendredi 09 décembre 2005 à 13:50 -0500, Lee Revell a écrit :
> > > I'm trying to build an x66-64 kernel on a 32 bit system (Ubuntu 5.10).
> > > I added -m64 to the CFLAGS as per the gcc docs.
> >
> > Under debian 32bits with 64bits kernel, I just add -m64 somewhere in the
> > main Makefile to rebuild my modules. Didn't try with a whole kernel
> > though.
>
> The bug seems to be that the kernel build system does not grok biarch
> toolchains - it really insists on a separate toolchain for i386 and
> x86_64 even though the situation can be handled with selective use of
> -m64. If I jsut add -m64 to everything then it fails when it gets to
> the ia32 stuff.
Yes, you shouldn't compile host executables with -m64, obviously.
--- /usr/src/linux-headers-2.6.14-2/Makefile.old 2005-12-10 21:32:17.000000000 +0100
+++ /usr/src/linux-headers-2.6.14-2/Makefile 2005-11-17 14:26:02.000000000 +0100
@@ -352,7 +352,7 @@
CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -fno-common \
- -ffreestanding
+ -ffreestanding -m64
AFLAGS := -D__ASSEMBLY__
export VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION LOCALVERSION KERNELRELEASE \
HTH,
Xav
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
