On Thu, 2005-12-08 at 20:48 +0100, Kai Ruemmler wrote:
> * Lee Revell <rlrevell@email-addr-hidden-job.com> wrote:
> > All I am trying to do is compile an x86_64 kernel on i386 machine. It
> > dos not work:
>
> > $ ARCH=x86_64 make oldconfig
> > <no errors>
>
> > $ ARCH=x86_64 make
>
> [...]
>
> > What gives? Do I need a different compiler to build for x86_64?
>
> Yes.
>
> Cross compiling the kernel works like this:
>
> $ make ARCH=<arch> CROSS_COMPILE=<arch-prefix>
>
> The gcc cross compiler for x86_64 is usually named x86_64-linux-gcc.
>
> In the special case of x86 -> x86_64 a 64 bit enabled gcc is sufficient
> though (if your binutils support 64 bit). In all other cases you need
> a "real" cross compiler.
>
Does not work. I installed binutils-multiarch and lib64gcc1 but I still
get the exact same error:
$ make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-
make: x86_64-linux-gcc: Command not found
CHK include/linux/version.h
CC arch/x86_64/kernel/asm-offsets.s
/bin/sh: x86_64-linux-gcc: command not found
make[1]: *** [arch/x86_64/kernel/asm-offsets.s] Error 127
make: *** [prepare0] Error 2
There does not seem to be any x86_64-linux-gcc package at all for Ubuntu.
If I omit CROSS_COMPILE I get the same error as before:
$ make ARCH=x86_64
CHK include/linux/version.h
CC arch/x86_64/kernel/asm-offsets.s
arch/x86_64/kernel/asm-offsets.c:1: error: code model 'kernel' not supported in the 32 bit mode
make[1]: *** [arch/x86_64/kernel/asm-offsets.s] Error 1
make: *** [prepare0] Error 2
Why does GCC insist on running in "the 32 bit mode" even though I told
it ARCH is x86-64?
Why doesn't this Just Work, is Ubuntu really such a piece of shit that
there's no easy way to do it?
Lee
Received on Fri Dec 9 00:15:09 2005
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