Package: linux-2.6
Version: 3.1.1-1
Severity: serious
Justification: breaks building of out-of-tree modules

Hello,

I'm unable to build any out-of-tree modules on sparc against headers 
provided by a combination of linux-headers-3.1.0-1-common and 
linux-headers-3.1.0-1-sparc64-smp packages (version 3.1.1-1). Typical 
error messages:

jurij@debian:~/tmp/linux-3.1.1/samples/kprobes$ make -C 
/lib/modules/3.1.0-1-sparc64-smp/build M=${PWD}
make: Entering directory `/usr/src/linux-headers-3.1.0-1-sparc64-smp'
  CC [M]  /home/jurij/tmp/linux-3.1.1/samples/kprobes/kprobe_example.o
In file included from 
/usr/src/linux-headers-3.1.0-1-common/include/linux/time.h:9:0,
                 from 
/usr/src/linux-headers-3.1.0-1-common/include/linux/stat.h:60,
                 from 
/usr/src/linux-headers-3.1.0-1-common/include/linux/module.h:10,
                 from 
/home/jurij/tmp/linux-3.1.1/samples/kprobes/kprobe_example.c:14:
/usr/src/linux-headers-3.1.0-1-common/include/linux/math64.h:5:23: fatal error: 
asm/div64.h: No such file or directory
compilation terminated.
make[3]: *** [/home/jurij/tmp/linux-3.1.1/samples/kprobes/kprobe_example.o] 
Error 1
make[2]: *** [_module_/home/jurij/tmp/linux-3.1.1/samples/kprobes] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2
make: Leaving directory `/usr/src/linux-headers-3.1.0-1-sparc64-smp'
jurij@debian:~/tmp/linux-3.1.1/samples/kprobes$ 

It appears that asm/div64.h (along with some other headers) is 
dynamically generated during the kernel build and it's 
sufficient to invoke 'make prepare' target to get it done, for 
example:

jurij@debian:~/tmp/linux-3.1.1$ make prepare
scripts/kconfig/conf --silentoldconfig Kconfig
  WRAP    arch/sparc/include/generated/asm/div64.h
  WRAP    arch/sparc/include/generated/asm/local64.h
  WRAP    arch/sparc/include/generated/asm/irq_regs.h
  WRAP    arch/sparc/include/generated/asm/local.h
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  CC      kernel/bounds.s
  GEN     include/generated/bounds.h
  CC      arch/sparc/kernel/asm-offsets.s
  GEN     include/generated/asm-offsets.h
  CALL    scripts/checksyscalls.sh
jurij@debian:~/tmp/linux-3.1.1$ 

I guess that packaged headers are copied from a directory where this 
command (or kernel build) was not run, and as a result they are not 
included in the packages.

Best regards,
-- 
Jurij Smakov                                           ju...@wooyd.org
Key: http://www.wooyd.org/pgpkey/                      KeyID: C99E03CC



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