From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
bpf@vger.kernel.org, Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH 2/3] perf build: Use libtraceevent from the system
Date: Tue, 6 Dec 2022 14:13:48 -0300 [thread overview]
Message-ID: <Y494TNa0ZyPH9YSD@kernel.org> (raw)
In-Reply-To: <Y4921D+36UGdhK92@kernel.org>
Em Tue, Dec 06, 2022 at 02:07:32PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Tue, Dec 06, 2022 at 02:01:43PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Tue, Dec 06, 2022 at 01:41:41PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Now to look at the BUILD_BPF_SKEL=1 kaboom:
> > >
> > > [acme@quaco perf]$ alias m
> > > alias m='rm -rf ~/libexec/perf-core/ ; make -k NO_LIBTRACEEVENT=1 BUILD_BPF_SKEL=1 O=/tmp/build/perf -C tools/perf install-bin && perf test python'
> > > [acme@quaco perf]$ m
> > > make: Entering directory '/home/acme/git/perf/tools/perf'
> > > BUILD: Doing 'make -j8' parallel build
> > > <SNIP>
> > > /usr/bin/ld: /tmp/build/perf/perf-in.o: in function `add_work':
> > > /home/acme/git/perf/tools/perf/util/bpf_kwork.c:285: undefined reference to `perf_kwork_add_work'
> > > /usr/bin/ld: /tmp/build/perf/perf-in.o: in function `lock_contention_read':
>
> For that bpf_kwork.c see below. Now to see why the python binding is not
> building, I guess is unrelated and you have some other outstanding
> patch?
Its related:
[acme@quaco perf]$ perf test -v python
Couldn't bump rlimit(MEMLOCK), failures may take place when creating BPF maps, etc
14: 'import perf' in python :
--- start ---
test child forked, pid 1669872
python usage test: "echo "import sys ; sys.path.append('/tmp/build/perf/python'); import perf" | '/usr/bin/python3' "
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: /tmp/build/perf/python/perf.cpython-310-x86_64-linux-gnu.so: undefined symbol: tep_unload_plugins
test child finished with -1
---- end ----
'import perf' in python: FAILED!
[acme@quaco perf]$
Now checking why NO_LIBTRACEEVENT=1 fails with this...
[acme@quaco perf]$ find tools/perf/ -name "*.c" | xargs grep tep_unload_plugins
tools/perf/util/trace-event.c: tep_unload_plugins(t->plugin_list, t->pevent);
[acme@quaco perf]$
[acme@quaco perf]$ grep trace-event tools/perf/util/python-ext-sources
util/trace-event.c
[acme@quaco perf]$
Trying to fix...
next prev parent reply other threads:[~2022-12-06 17:14 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-05 22:59 [PATCH 0/3] libtraceevent from system and build fix Ian Rogers
2022-12-05 22:59 ` [PATCH 1/3] perf build: Fixes for LIBTRACEEVENT_DYNAMIC Ian Rogers
2022-12-05 22:59 ` [PATCH 2/3] perf build: Use libtraceevent from the system Ian Rogers
2022-12-06 16:15 ` Arnaldo Carvalho de Melo
2022-12-06 16:20 ` Arnaldo Carvalho de Melo
2022-12-06 16:23 ` Arnaldo Carvalho de Melo
2022-12-06 16:30 ` Arnaldo Carvalho de Melo
2022-12-06 16:37 ` Arnaldo Carvalho de Melo
2022-12-06 16:41 ` Arnaldo Carvalho de Melo
2022-12-06 17:01 ` Arnaldo Carvalho de Melo
2022-12-06 17:07 ` Arnaldo Carvalho de Melo
2022-12-06 17:13 ` Arnaldo Carvalho de Melo [this message]
2022-12-06 17:31 ` Arnaldo Carvalho de Melo
2022-12-06 22:22 ` Ian Rogers
2022-12-07 14:21 ` [ALMOST ready] " Arnaldo Carvalho de Melo
2022-12-07 14:31 ` Arnaldo Carvalho de Melo
2022-12-07 14:33 ` Arnaldo Carvalho de Melo
2022-12-07 14:39 ` Steven Rostedt
2022-12-07 16:02 ` Arnaldo Carvalho de Melo
2022-12-07 16:56 ` Arnaldo Carvalho de Melo
2022-12-07 17:00 ` Ian Rogers
2022-12-07 14:37 ` Arnaldo Carvalho de Melo
2022-12-07 13:38 ` Athira Rajeev
2022-12-07 17:27 ` Arnaldo Carvalho de Melo
2022-12-07 17:31 ` Arnaldo Carvalho de Melo
2022-12-07 17:43 ` Arnaldo Carvalho de Melo
2022-12-08 6:51 ` Athira Rajeev
2022-12-08 22:04 ` Arnaldo Carvalho de Melo
2022-12-08 22:32 ` Arnaldo Carvalho de Melo
2022-12-08 23:00 ` Ian Rogers
2022-12-08 23:05 ` Ian Rogers
2022-12-12 14:13 ` Arnaldo Carvalho de Melo
2022-12-12 14:28 ` Arnaldo Carvalho de Melo
2022-12-09 6:34 ` Athira Rajeev
2022-12-12 13:51 ` Arnaldo Carvalho de Melo
2022-12-13 9:53 ` Athira Rajeev
2022-12-13 22:09 ` Ian Rogers
2022-12-13 22:33 ` Arnaldo Carvalho de Melo
2022-12-13 22:47 ` Ian Rogers
2022-12-15 7:10 ` Athira Rajeev
2022-12-07 13:33 ` Athira Rajeev
2022-12-07 13:46 ` Athira Rajeev
2022-12-07 16:16 ` Ian Rogers
2022-12-07 16:52 ` Arnaldo Carvalho de Melo
2022-12-05 22:59 ` [PATCH 3/3] perf build: Fix python/perf.so library's name Ian Rogers
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