[Xen-users] how to compile a xen kernel (on debian testing)?

[Matus Harvan <m.harvan@xxxxxxxxxxxx>]

Hello,

I was wondering how do other people using debian build the xen kernels
form source on a debian testing system?

I am using a Debian testing system. I have installed the xen package and
it works nicely. However, I would like to change some options in the xen
kernels (like adding IPv6) and compile them myself. I have downloaded
the stable xen release
(http://www.cl.cam.ac.uk/Research/SRG/netos/xen/downloads/xen-2.0.7-src.tgz)
and tried:
        make kernels
        make CC=gcc-3.4 kernels
        make CC=gcc-3.3 kernels

and with all I ended up at
[snip]
  CC      arch/xen/i386/kernel/process.o
{standard input}: Assembler messages:
{standard input}:556: Error: suffix or operands invalid for `mov'
{standard input}:557: Error: suffix or operands invalid for `mov'
{standard input}:765: Error: suffix or operands invalid for `mov'
{standard input}:766: Error: suffix or operands invalid for `mov'
{standard input}:845: Error: suffix or operands invalid for `mov'
{standard input}:846: Error: suffix or operands invalid for `mov'
{standard input}:883: Error: suffix or operands invalid for `mov'
{standard input}:884: Error: suffix or operands invalid for `mov'
{standard input}:1138: Error: suffix or operands invalid for `mov'
{standard input}:1150: Error: suffix or operands invalid for `mov'
make[4]: *** [arch/xen/i386/kernel/process.o] Error 1
[snip]

An earlier message on this list says for redhat using gcc-3.2 helped.
But I can't find a gcc-3.2 package for debian. Anybody knows where to
get it?

I have also tried to build the debian xen package from source. AFAIK,
this one uses the 2.0.6 xen release. It sets the Makefile CC to gcc-3.4,
but it also tries to use kenel-source-2.6.11 and
kernel-patch-debian-2.6.11 packages, which again I cannot find anywhere.
Using dpkg-buildpackage -d, I got again hit by the same problem:
[snip]
gcc-3.4 -nostdinc -fno-builtin -fno-common -fno-strict-aliasing
-iwithprefix include -Wall -Werror -pipe
-I/uml/xen/debian/tmp/xen-2.0.6/xen/include -Wno-pointer-arith
-Wredundant-decls -O3 -fomit-frame-pointer -msoft-float -m32 -march=i686
-DNDEBUG -c i8259.c -o i8259.o
{standard input}: Assembler messages:
{standard input}:6: Error: suffix or operands invalid for `mov'
{standard input}:6: Error: suffix or operands invalid for `mov'
{standard input}:6: Error: suffix or operands invalid for `mov'
{standard input}:6: Error: suffix or operands invalid for `mov'
{standard input}:1054: Error: suffix or operands invalid for `mov'
{standard input}:1054: Error: suffix or operands invalid for `mov'
{standard input}:1054: Error: suffix or operands invalid for `mov'
{standard input}:1054: Error: suffix or operands invalid for `mov'
{standard input}:1062: Error: suffix or operands invalid for `mov'
{standard input}:1062: Error: suffix or operands invalid for `mov'
{standard input}:1062: Error: suffix or operands invalid for `mov'
{standard input}:1062: Error: suffix or operands invalid for `mov'
{standard input}:1070: Error: suffix or operands invalid for `mov'
{standard input}:1070: Error: suffix or operands invalid for `mov'
{standard input}:1070: Error: suffix or operands invalid for `mov'
{standard input}:1070: Error: suffix or operands invalid for `mov'
{standard input}:1078: Error: suffix or operands invalid for `mov'
{standard input}:1078: Error: suffix or operands invalid for `mov'
{standard input}:1078: Error: suffix or operands invalid for `mov'
{standard input}:1078: Error: suffix or operands invalid for `mov'
{standard input}:1089: Error: suffix or operands invalid for `mov'
{standard input}:1089: Error: suffix or operands invalid for `mov'
{standard input}:1089: Error: suffix or operands invalid for `mov'
{standard input}:1089: Error: suffix or operands invalid for `mov'
{standard input}:1097: Error: suffix or operands invalid for `mov'
{standard input}:1097: Error: suffix or operands invalid for `mov'
{standard input}:1097: Error: suffix or operands invalid for `mov'
{standard input}:1097: Error: suffix or operands invalid for `mov'
make[3]: *** [i8259.o] Error 1
make[3]: Leaving directory `/uml/xen/debian/tmp/xen-2.0.6/xen/arch/x86'
[snip]

I guess the debian patch for 2.6.11 does some magic so that it compiles
with gcc-3.4, but I'm not sure how to get that patch.

Trying to compile the testing version of xen, I got a similar problem:
$ make CC=gcc-3.4 kernels
[snip]
  CC      arch/xen/i386/kernel/process.o
arch/xen/i386/kernel/process.c: In function `cpu_idle':
arch/xen/i386/kernel/process.c:118: warning: unused variable `cpu'
{standard input}: Assembler messages:
{standard input}:910: Error: suffix or operands invalid for `mov'
{standard input}:911: Error: suffix or operands invalid for `mov'
make[4]: *** [arch/xen/i386/kernel/process.o] Error 1
[snip]

I have also tried the unstable version. This one compiles without
problems and I could also "make install". But then I got various
problems later on the way and in general, I would prefer to run the
stable version.

Thanks,
Matus

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