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

[Andreas Beckmann <anbe@debian.org>]

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
----------------------------------------------------------------


Andreas