Cannot compile nouveau.o in drm with kernel 2.6.26

Cannot compile nouveau.o in drm with kernel 2.6.26

[Garnet MacPhee]

I am getting the following error when trying to compile nouveau.o in drm/linux-core on linux kernel 2.6.26. Drm itself 
compiles and installs correctly. I am using the latest drm git. I cannot access bugzilla from the nouveau page because it says 
it has an invalid security certificate.

root@default:~/drm/linux-core# make nouveau.o
make DRM_MODULES=nouveau.o modules
make[1]: Entering directory `/root/drm/linux-core'
make -C /lib/modules/2.6.26/source  SUBDIRS=`pwd` DRMSRCDIR=`pwd` modules
make[2]: Entering directory `/usr/src/linux-2.6.26'
   CC [M]  /root/drm/linux-core/drm_auth.o
In file included from include/linux/gfp.h:4,
                  from include/linux/slab.h:12,
                  from include/linux/percpu.h:5,
                  from include/asm/local.h:4,
                  from include/linux/module.h:19,
                  from /root/drm/linux-core/drmP.h:44,
                  from /root/drm/linux-core/drm_auth.c:36:
include/linux/mmzone.h:18:26: error: linux/bounds.h: No such file or directory
include/linux/mmzone.h:197:5: warning: "MAX_NR_ZONES" is not defined
In file included from include/linux/gfp.h:4,
                  from include/linux/slab.h:12,
                  from include/linux/percpu.h:5,
                  from include/asm/local.h:4,
                  from include/linux/module.h:19,
                  from /root/drm/linux-core/drmP.h:44,
                  from /root/drm/linux-core/drm_auth.c:36:
include/linux/mmzone.h:218: error: 'MAX_NR_ZONES' undeclared here (not in a function)
In file included from include/asm/pci.h:4,
                  from include/linux/pci.h:948,
                  from /root/drm/linux-core/drmP.h:51,
                  from /root/drm/linux-core/drm_auth.c:36:
include/linux/mm.h:429:63: warning: "NR_PAGEFLAGS" is not defined
include/linux/mm.h:477:62: warning: "NR_PAGEFLAGS" is not defined
make[3]: *** [/root/drm/linux-core/drm_auth.o] Error 1
make[2]: *** [_module_/root/drm/linux-core] Error 2
make[2]: Leaving directory `/usr/src/linux-2.6.26'
make[1]: *** [modules] Error 2
make[1]: Leaving directory `/root/drm/linux-core'
make: *** [nouveau.o] Error 2
root@default:~/drm/linux-core#

Re: Cannot compile nouveau.o in drm with kernel 2.6.26

[Pekka Paalanen]

On Fri, 18 Jul 2008 18:22:47 -0600
Garnet MacPhee <garnet-vVazHDhchvNCCzmm7wA0Mw@public.gmane.org> wrote:

> I am getting the following error when trying to compile nouveau.o in drm/linux-core on linux kernel 2.6.26. Drm itself 

By "Drm itself" I assume you are referring to libdrm.

> compiles and installs correctly. I am using the latest drm git. I cannot access bugzilla from the nouveau page because it says 
> it has an invalid security certificate.

IIRC it is just waiting for browsers to add cacert.org to trusted root
certificates, it should be fine to accept.

> root@default:~/drm/linux-core# make nouveau.o
> make DRM_MODULES=nouveau.o modules
> make[1]: Entering directory `/root/drm/linux-core'
> make -C /lib/modules/2.6.26/source  SUBDIRS=`pwd` DRMSRCDIR=`pwd` modules
> make[2]: Entering directory `/usr/src/linux-2.6.26'
>    CC [M]  /root/drm/linux-core/drm_auth.o
> In file included from include/linux/gfp.h:4,
>                   from include/linux/slab.h:12,
>                   from include/linux/percpu.h:5,
>                   from include/asm/local.h:4,
>                   from include/linux/module.h:19,
>                   from /root/drm/linux-core/drmP.h:44,
>                   from /root/drm/linux-core/drm_auth.c:36:
> include/linux/mmzone.h:18:26: error: linux/bounds.h: No such file or directory
> include/linux/mmzone.h:197:5: warning: "MAX_NR_ZONES" is not defined
> In file included from include/linux/gfp.h:4,
>                   from include/linux/slab.h:12,
>                   from include/linux/percpu.h:5,
>                   from include/asm/local.h:4,
>                   from include/linux/module.h:19,
>                   from /root/drm/linux-core/drmP.h:44,
>                   from /root/drm/linux-core/drm_auth.c:36:
> include/linux/mmzone.h:218: error: 'MAX_NR_ZONES' undeclared here (not in a function)
> In file included from include/asm/pci.h:4,
>                   from include/linux/pci.h:948,
>                   from /root/drm/linux-core/drmP.h:51,
>                   from /root/drm/linux-core/drm_auth.c:36:
> include/linux/mm.h:429:63: warning: "NR_PAGEFLAGS" is not defined

These look funny. Did you build your kernel from the same source tree
the DRM is using (/lib/modules/2.6.26/source)?
I haven't seen these errors before, but my first guess would be an
unconfigured or never-compiled kernel source tree. Hmm, yes, at least
include/linux/bounds.h is a build-time generated file.

If you are using a precompiled kernel image from your favourite
distribution, you might need to install also another package which allows
building custom kernel modules. This is distro specific.

-- 
Pekka Paalanen
http://www.iki.fi/pq/

Re: Cannot compile nouveau.o in drm with kernel 2.6.26

[Garnet MacPhee]

Pekka Paalanen wrote:
> On Fri, 18 Jul 2008 18:22:47 -0600
> Garnet MacPhee <garnet-vVazHDhchvNCCzmm7wA0Mw@public.gmane.org> wrote:
> 
>> I am getting the following error when trying to compile nouveau.o in drm/linux-core on linux kernel 2.6.26. Drm itself 
> 
> By "Drm itself" I assume you are referring to libdrm.

Yes, thats right.
> 
> 
>> root@default:~/drm/linux-core# make nouveau.o
>> make DRM_MODULES=nouveau.o modules
>> make[1]: Entering directory `/root/drm/linux-core'
>> make -C /lib/modules/2.6.26/source  SUBDIRS=`pwd` DRMSRCDIR=`pwd` modules
>> make[2]: Entering directory `/usr/src/linux-2.6.26'
>>    CC [M]  /root/drm/linux-core/drm_auth.o
>> In file included from include/linux/gfp.h:4,
>>                   from include/linux/slab.h:12,
>>                   from include/linux/percpu.h:5,
>>                   from include/asm/local.h:4,
>>                   from include/linux/module.h:19,
>>                   from /root/drm/linux-core/drmP.h:44,
>>                   from /root/drm/linux-core/drm_auth.c:36:
>> include/linux/mmzone.h:18:26: error: linux/bounds.h: No such file or directory
>> include/linux/mmzone.h:197:5: warning: "MAX_NR_ZONES" is not defined
>> In file included from include/linux/gfp.h:4,
>>                   from include/linux/slab.h:12,
>>                   from include/linux/percpu.h:5,
>>                   from include/asm/local.h:4,
>>                   from include/linux/module.h:19,
>>                   from /root/drm/linux-core/drmP.h:44,
>>                   from /root/drm/linux-core/drm_auth.c:36:
>> include/linux/mmzone.h:218: error: 'MAX_NR_ZONES' undeclared here (not in a function)
>> In file included from include/asm/pci.h:4,
>>                   from include/linux/pci.h:948,
>>                   from /root/drm/linux-core/drmP.h:51,
>>                   from /root/drm/linux-core/drm_auth.c:36:
>> include/linux/mm.h:429:63: warning: "NR_PAGEFLAGS" is not defined
> 
> These look funny. Did you build your kernel from the same source tree
> the DRM is using (/lib/modules/2.6.26/source)?

Yes, /lib/modules/2.6.26/source is actually a pointer, and it points to /usr/src/linux-2.6.26 just like it should.

> I haven't seen these errors before, but my first guess would be an
> unconfigured or never-compiled kernel source tree. Hmm, yes, at least
> include/linux/bounds.h is a build-time generated file.
> 
> If you are using a precompiled kernel image from your favourite
> distribution, you might need to install also another package which allows
> building custom kernel modules. This is distro specific.
> 
I am running Slackware 12.1, and I compile my own custom kernel, I do not use the precompiled ones (they are 2.6.24 vintage). 
The kernel has indeed been compiled, and I can run X using the nv driver.

Also, the same drm git will build correctly with kernel 2.6.25.

Re: Cannot compile nouveau.o in drm with kernel 2.6.26

[Garnet MacPhee]

OK, I found the problem.

Running 'make clean' after compiling 2.6.26 will remove /usr/src/linux-2.6.26/include/linux/bounds.h. This is a change in 
behavior from 2.6.25 and earlier kernels.

I have always run 'make clean' (NOT make mrproper) after compiling a kernel, more out of habit than anything else, I guess. It 
never caused a problem before.

I am now happily running nouveau on kernel 2.6.26. Sorry about making noise on the list, but hopefully this will save somebody 
some time and hassle. I don't know what the long term solution should be, whether 'make clean' should be changed back to its 
previous behavior, whether drivers should stop referencing bounds.h, or whether people just have to change their behavior and 
not run 'make clean' after compiling.