Bug#1098706: linux: building out-of-tree modules fails with pahole: not found

[Salvatore Bonaccorso <carnil@debian.org>]

Hi Andreas,

On Sun, Feb 23, 2025 at 02:18:20AM +0100, Andreas Beckmann wrote:
> Source: linux
> Version: 6.12.16-1
> Severity: serious
> 
> Hi,
> 
> the last linux upload causes regressions building (probably) all
> out-of-tree dkms modules, e.g.
> 
> DKMS (dkms-3.1.5) make.log for dkms_test/1.0 for kernel 6.12.16-amd64 (x86_64)
> Sun Feb 23 00:18:07 UTC 2025
> 
> Building module(s)
> # command: make -j14 KERNELRELEASE=6.12.16-amd64 -C /lib/modules/6.12.16-amd64/build M=/var/lib/dkms/dkms_test/1.0/build
> make: Entering directory '/usr/src/linux-headers-6.12.16-amd64'
>   CC [M]  /var/lib/dkms/dkms_test/1.0/build/dkms_test.o
>   MODPOST /var/lib/dkms/dkms_test/1.0/build/Module.symvers
>   CC [M]  /var/lib/dkms/dkms_test/1.0/build/dkms_test.mod.o
>   CC [M]  /var/lib/dkms/dkms_test/1.0/build/.module-common.o
>   LD [M]  /var/lib/dkms/dkms_test/1.0/build/dkms_test.ko
>   BTF [M] /var/lib/dkms/dkms_test/1.0/build/dkms_test.ko
> /bin/sh: 1: pahole: not found
> make[2]: *** [/usr/src/linux-headers-6.12.16-common/scripts/Makefile.modfinal:64: /var/lib/dkms/dkms_test/1.0/build/dkms_test.ko] Error 127
> make[2]: *** Deleting file '/var/lib/dkms/dkms_test/1.0/build/dkms_test.ko'
> make[1]: *** [/usr/src/linux-headers-6.12.16-common/Makefile:1890: modules] Error 2
> make: *** [/usr/src/linux-headers-6.12.16-common/Makefile:236: __sub-make] Error 2
> make: Leaving directory '/usr/src/linux-headers-6.12.16-amd64'
> 
> # exit code: 2
> # elapsed time: 00:00:03
> ----------------------------------------------------------------

Sorry for this breakage. I have the change adding the Depends on
pahole pending in git for both the next experimental and unstable
upload.

Regards,
Salvatore