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SubjectRe: [PATCH v2 1/3] perf-stat: introduce bperf, share hardware PMCs with BPF
On Fri, Mar 19, 2021 at 03:41:57PM -0300, Arnaldo Carvalho de Melo wrote:

SNIP

> LD /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf-in.o
> LINK /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/libbpf.a
> LINK /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/bpftool
> GEN-SKEL /tmp/build/perf/util/bpf_skel/bpf_prog_profiler.skel.h
> GEN-SKEL /tmp/build/perf/util/bpf_skel/bperf_leader.skel.h
> GEN-SKEL /tmp/build/perf/util/bpf_skel/bperf_follower.skel.h
> libbpf: map 'prev_readings': unexpected def kind var.
> Error: failed to open BPF object file: Invalid argument
> libbpf: map 'diff_readings': unexpected def kind var.
> Error: failed to open BPF object file: Invalid argument

I'm getting clean build for the same options,
could you please send the same output also with 'JOBS=1 V=1'


> make[2]: *** [Makefile.perf:1029: /tmp/build/perf/util/bpf_skel/bperf_leader.skel.h] Error 255
> make[2]: *** Waiting for unfinished jobs....
> make[2]: *** [Makefile.perf:1029: /tmp/build/perf/util/bpf_skel/bperf_follower.skel.h] Error 255
> make[1]: *** [Makefile.perf:236: sub-make] Error 2
> make: *** [Makefile:110: install-bin] Error 2
> make: Leaving directory '/home/acme/git/perf/tools/perf'
> [acme@quaco perf]$ clang -v
> clang version 11.0.0 (https://github.com/llvm/llvm-project 67420f1b0e9c673ee638f2680fa83f468019004f)
> Target: x86_64-unknown-linux-gnu
> Thread model: posix
> InstalledDir: /usr/local/bin
> Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/10
> Selected GCC installation: /usr/lib/gcc/x86_64-redhat-linux/10
> Candidate multilib: .;@m64
> Candidate multilib: 32;@m32
> Selected multilib: .;@m64
> [acme@quaco perf]$
>

I have:

[jolsa@dell-r440-01 linux-perf]$ clang --version
clang version 11.0.0 (Fedora 11.0.0-2.fc33)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/bin


jirka

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