On Mon, Jan 11, 2021 at 02:34:04PM -0800, Tom Stellard wrote: > On 1/11/21 2:31 PM, Jiri Olsa wrote: > > On Mon, Jan 11, 2021 at 10:30:22PM +0100, Sedat Dilek wrote: > > > > SNIP > > > > > > > > > > > > Building a new Linux-kernel... > > > > > > > > > > - Sedat - > > > > > > > > > > [1] https://git.kernel.org/pub/scm/devel/pahole/pahole.git/ > > > > > [2] https://github.com/ClangBuiltLinux/tc-build/issues/129#issuecomment-758026878 > > > > > [3] https://github.com/ClangBuiltLinux/tc-build/issues/129#issuecomment-758056553 > > > > > > > > There are no significant bug fixes between pahole 1.19 and master that > > > > would solve this problem, so let's try to repro this. > > > > > > > > > > You are right pahole fom latest Git does not solve the issue. > > > > > > + 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 > > > > hm, is there a .BTF section in vmlinux? > > > > is this working over vmlinux: > > $ bpftool btf dump file ./vmlinux > > > > do you have a verbose build output? I'd think pahole scream first.. > > > > It does. For me, pahole segfaults at scripts/link-vmlinux.sh:131. This is > pretty easy for me to reproduce. I have logs, what other information would > be helpful? How about a pahole backtrace? that'd be great.. I'll try to reproduce, but with the latest clang it will take me some time jirka > > -Tom > > > jirka > > >
