Re: [uml-devel] Problems applying patches to 2.6.12-rc5-mm2

["Anthony Brock" <Anthony_Brock@ous.edu>]

Blaisor,

Thanks! Any ideas on the second compile problem? The output is:

  CC      kernel/futex.o
  CC      kernel/uid16.o
  CC      kernel/module.o
kernel/module.c: In function `module_add_modinfo_attrs':
kernel/module.c:1078: error: `modinfo_attrs' undeclared (first use in this function)
kernel/module.c:1078: error: (Each undeclared identifier is reported only once
kernel/module.c:1078: error: for each function it appears in.)
kernel/module.c: In function `module_remove_modinfo_attrs':
kernel/module.c:1091: error: `modinfo_attrs' undeclared (first use in this function)
kernel/module.c: In function `setup_modinfo':
kernel/module.c:1387: error: `modinfo_attrs' undeclared (first use in this function)
make[1]: *** [kernel/module.o] Error 1
make: *** [kernel] Error 2


Tony


>>> Blaisorblade <blaisorblade@yahoo.it> 06/05/05 08:54AM >>>
On Friday 03 June 2005 19:15, Anthony Brock wrote:
> In the event that something "wierd" happened to my guest binary, I've
> decide to try recompiling again. However, I'm now seeing new (and old)
> compilation errors with Jeff's tree. The steps were:

> # tar -jxvf linux-2.6.12-rc5.tar.bz2
> # cd linux-2.6.12-rc5/
> # bzip2 -dc ../2.6.12-rc5-mm2.bz2 |patch -p1
> # tar -xvf ../2.6.12-rc5-mm2-20050602-patches.tar
> # quilt push -a
> # cp -a ../.config .
> # make oldconfig ARCH=um
> # make ARCH=um && make modules ARCH=um
>
> <*** OUTPUT SNIPPED ***>
>
>   CC      arch/um/sys-i386/sigcontext.o
>   AS      arch/um/sys-i386/stub.o
>   CC      arch/um/sys-i386/stub_segv.o
> fixdep: arch/um/sys-i386/.stub_segv.o.d: No such file or directory
Ok, the other time I just looked at patch changelogs, now here's a more 
definite answer. The patch does not work because the .d file is not created.

Probably it works for you, Jeff, because you have that file as a residual from 
a previous compile...

In this section of the patch (both for i386 and x86_64), affecting 
arch/um/sys-*/Makefile, the last line:

+# _cflags works with kernel files, not with userspace ones, but c_flags does,
+# why ask why?
+$(obj)/stub_segv.o : c_flags = $(call unprofile,$(USER_CFLAGS))

should become (without the break):
+$(obj)/stub_segv.o : c_flags = -Wp,-MD,$(depfile) $(call unprofile,
$(USER_CFLAGS))

See for comparison the content of arch/um/scripts/Makefile.rules (and for the 
difference between _c_flags and c_flags, scripts/Makefile.lib).

Beyond that, for such tricks with .S files we would use a_flags (or 
_a_flags)... currently this is not needed, but just in case you need it.


> make[1]: *** [arch/um/sys-i386/stub_segv.o] Error 2
> make: *** [arch/um/sys-i386] Error 2

-- 
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade 


	

	
		
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