Re: linux-next: build failure after merge of the perf tree

[Arnaldo Carvalho de Melo <arnaldo.melo@xxxxxxxxx>]

On March 16, 2023 7:50:25 PM GMT-03:00, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>Hi all,
>
>After merging the perf tree, today's linux-next build (native perf)
>failed like this:
>
>Auto-detecting system features:
>...                         clang-bpf-co-re: [ on  ]
>...                                    llvm: [ OFF ]
>...                                  libcap: [ on  ]
>...                                  libbfd: [ on  ]
>
>make[1]: *** Deleting file '/home/sfr/next/perf/util/bpf_skel/vmlinux.h'
>libbpf: failed to find '.BTF' ELF section in /boot/vmlinux-6.0.0-5-powerpc64le
>Error: failed to load BTF from /boot/vmlinux-6.0.0-5-powerpc64le: No data available
>make[1]: *** [Makefile.perf:1075: /home/sfr/next/perf/util/bpf_skel/vmlinux.h] Error 195
>make[1]: *** Waiting for unfinished jobs....
>make: *** [Makefile.perf:236: sub-make] Error 2
>Command exited with non-zero status 2
>
>To be clear this is a native build of perf on a PPC64le host using this
>command line:
>
>make -C tools/perf -f Makefile.perf -s -O -j60 O=../perf EXTRA_CFLAGS=-Wno-psabi
>
>(I could probably remove the EXTRA_CLFAGS now that I am building with
>gcc 12.2)
>
>I don't know which commit caused this.

Can you try adding NO_BPF_SKEL=1 to the make -C tools/perf command line?

- Arnaldo

>
>I have used the perf tree from next-20230316 for today.
>
>
>