On Mon, Jan 11, 2021 at 11:29 AM Salvatore Bonaccorso <[email protected]> wrote: > > > On Mon, Jan 11, 2021 at 09:57:43AM +0100, Sedat Dilek wrote: > > Hi, > > > > yesterday, I installed linux-image-5.10.0-1-amd64 version 5.10.5-1 > > from Debian/unstable. > > > > I am building custom Linux-kernels mostly to test with LLVM/Clang and > > use Debian's kernel-config file as a base for my work. > > > > With CONFIG_DEBUG_INFO_BTF=y there is a requirement for pahole binary > > from dwarves package. > > > > The requirement is coded in [1]: > > > > if ! [ -x "$(command -v ${PAHOLE})" ]; then > > echo >&2 "BTF: ${1}: pahole (${PAHOLE}) is not available" > > return 1 > > fi > > > > Is there an install-recommendation for dwarves package? > > If not - I would like to open a bug-report. > > > > If you need further information, please let me know. > > this change happened in > https://salsa.debian.org/kernel-team/linux/-/commit/929891281c61ce4403ddd869664c949692644a2f > (actually earlier, then reverted and enabled for a subset of > architectures wiith the above commit). > > For the Debian build it adds as well the Build-Depends on dwarves (>= > 1.16~). > > Did I understood your question correctly? >
Hi Salvatore, That commit looks good to me. Anyway, it breaks here CONFIG_DEBUG_INFO_BTF=y: + [ -n y -a -n y ] + info BTFIDS vmlinux + [ != silent_ ] + printf %-7s %s\n BTFIDS vmlinux BTFIDS vmlinux + ./tools/bpf/resolve_btfids/resolve_btfids vmlinux FAILED: load BTF from vmlinux: Invalid argument + on_exit + [ 255 -ne 0 ] + cleanup + rm -f .btf.vmlinux.bin.o Any comments? Thanks. Regards, - Sedat -
