Re: [PATCH 09/10] perf scripting python: Add auxtrace error

From: Arnaldo Carvalho de Melo
Date: Tue May 25 2021 - 15:55:06 EST

Em Tue, May 25, 2021 at 09:30:50PM +0300, Adrian Hunter escreveu:
> On 25/05/21 4:03 pm, Arnaldo Carvalho de Melo wrote:
> > Em Tue, May 25, 2021 at 12:51:11PM +0300, Adrian Hunter escreveu:
> >> Add auxtrace_error to general python scripting.
> >>
> >> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> >> ---
> >> tools/perf/builtin-script.c | 13 ++++++
> >> .../scripting-engines/trace-event-python.c | 42 +++++++++++++++++++
> >> tools/perf/util/trace-event.h | 2 +
> >> 3 files changed, 57 insertions(+)
> >>
> >> diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
> >> index 69bce65ea430..7a7a19f52db5 100644
> >> --- a/tools/perf/builtin-script.c
> >> +++ b/tools/perf/builtin-script.c
> >> @@ -2432,6 +2432,17 @@ static int process_switch_event(struct perf_tool *tool,
> >> sample->tid);
> >> }
> >>
> >> +static int process_auxtrace_error(struct perf_session *session,
> >> + union perf_event *event)
> >> +{
> >> + if (scripting_ops && scripting_ops->process_auxtrace_error) {
> >> + scripting_ops->process_auxtrace_error(session, event);
> >> + return 0;
> >> + }
> >> +
> >> + return perf_event__process_auxtrace_error(session, event);
> >> +}
> >> +
> >
> > Those definitions in auxtrace.h:
> >
> > e31f0d017ea19fce9 (Adrian Hunter 2015-04-30 17:37:27 +0300 706) #define perf_event__process_auxtrace_info 0
> > e31f0d017ea19fce9 (Adrian Hunter 2015-04-30 17:37:27 +0300 707) #define perf_event__process_auxtrace 0
> > e31f0d017ea19fce9 (Adrian Hunter 2015-04-30 17:37:27 +0300 708) #define perf_event__process_auxtrace_error 0
> >
> > came back to haunt us :-)
>
> Sorry about that
>
> >
> > I'll try making them the usual inlines, etc
>
> Thank you! :-)

Its fixed by now and out in my perf/core branch, as all tests passed
successfully, i.e. will not be rebased.

- Arnaldo

> >
> > - Arnaldo
> >
> >
> > make_minimal_O: cd . && make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1 NO_LIBCAP=1 NO_SYSCALL_TABLE=1 FEATURES_DUMP=/var/home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP -j24 O=/tmp/tmp.rGrdpQlTCr DESTDIR=/tmp/tmp.png5u8ITR9
> > cd . && make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1 NO_LIBCAP=1 NO_SYSCALL_TABLE=1 FEATURES_DUMP=/var/home/acme/git/perf/tools/perf/BUILD_TEST_FEATURE_DUMP -j24 O=/tmp/tmp.rGrdpQlTCr DESTDIR=/tmp/tmp.png5u8ITR9
> > BUILD: Doing 'make -j24' parallel build
> > <SNIP>
> > CC /tmp/tmp.rGrdpQlTCr/builtin-daemon.o
> > In file included from util/events_stats.h:8,
> > from util/evlist.h:12,
> > from builtin-script.c:18:
> > builtin-script.c: In function ‘process_auxtrace_error’:
> > util/auxtrace.h:708:57: error: called object is not a function or function pointer
> > 708 | #define perf_event__process_auxtrace_error 0
> > | ^
> > builtin-script.c:2443:16: note: in expansion of macro ‘perf_event__process_auxtrace_error’
> > 2443 | return perf_event__process_auxtrace_error(session, event);
> > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > MKDIR /tmp/tmp.rGrdpQlTCr/tests/
> > MKDIR /tmp/tmp.rGrdpQlTCr/bench/
> > CC /tmp/tmp.rGrdpQlTCr/tests/builtin-test.o
> > CC /tmp/tmp.rGrdpQlTCr/bench/sched-messaging.o
> > builtin-script.c:2444:1: error: control reaches end of non-void function [-Werror=return-type]
> > 2444 | }
> > | ^
> > cc1: all warnings being treated as errors
> > make[5]: *** [/var/home/acme/git/perf/tools/build/Makefile.build:96: /tmp/tmp.rGrdpQlTCr/builtin-script.o] Error 1
> > make[5]: *** Waiting for unfinished jobs....
> > MKDIR /tmp/tmp.rGrdpQlTCr/tests/
> > CC /tmp/tmp.rGrdpQlTCr/tests/parse-events.o
> > MKDIR /tmp/tmp.rGrdpQlTCr/bench/
> > CC /tmp/tmp.rGrdpQlTCr/bench/sched-pipe.o
> >
> >
> >
> >> static int
> >> process_lost_event(struct perf_tool *tool,
> >> union perf_event *event,
> >> @@ -2571,6 +2582,8 @@ static int __cmd_script(struct perf_script *script)
> >> }
> >> if (script->show_switch_events || (scripting_ops && scripting_ops->process_switch))
> >> script->tool.context_switch = process_switch_event;
> >> + if (scripting_ops && scripting_ops->process_auxtrace_error)
> >> + script->tool.auxtrace_error = process_auxtrace_error;
> >> if (script->show_namespace_events)
> >> script->tool.namespaces = process_namespaces_event;
> >> if (script->show_cgroup_events)
> >> diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
> >> index c422901d5344..ffc5f4cffdba 100644
> >> --- a/tools/perf/util/scripting-engines/trace-event-python.c
> >> +++ b/tools/perf/util/scripting-engines/trace-event-python.c
> >> @@ -1014,6 +1014,11 @@ static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val)
> >> #endif
> >> }
> >>
> >> +static int tuple_set_u32(PyObject *t, unsigned int pos, u32 val)
> >> +{
> >> + return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLong(val));
> >> +}
> >> +
> >> static int tuple_set_s32(PyObject *t, unsigned int pos, s32 val)
> >> {
> >> return PyTuple_SetItem(t, pos, _PyLong_FromLong(val));
> >> @@ -1461,6 +1466,42 @@ static void python_process_switch(union perf_event *event,
> >> python_do_process_switch(event, sample, machine);
> >> }
> >>
> >> +static void python_process_auxtrace_error(struct perf_session *session __maybe_unused,
> >> + union perf_event *event)
> >> +{
> >> + struct perf_record_auxtrace_error *e = &event->auxtrace_error;
> >> + u8 cpumode = e->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
> >> + const char *handler_name = "auxtrace_error";
> >> + unsigned long long tm = e->time;
> >> + const char *msg = e->msg;
> >> + PyObject *handler, *t;
> >> +
> >> + handler = get_handler(handler_name);
> >> + if (!handler)
> >> + return;
> >> +
> >> + if (!e->fmt) {
> >> + tm = 0;
> >> + msg = (const char *)&e->time;
> >> + }
> >> +
> >> + t = tuple_new(9);
> >> +
> >> + tuple_set_u32(t, 0, e->type);
> >> + tuple_set_u32(t, 1, e->code);
> >> + tuple_set_s32(t, 2, e->cpu);
> >> + tuple_set_s32(t, 3, e->pid);
> >> + tuple_set_s32(t, 4, e->tid);
> >> + tuple_set_u64(t, 5, e->ip);
> >> + tuple_set_u64(t, 6, tm);
> >> + tuple_set_string(t, 7, msg);
> >> + tuple_set_u32(t, 8, cpumode);
> >> +
> >> + call_object(handler, t, handler_name);
> >> +
> >> + Py_DECREF(t);
> >> +}
> >> +
> >> static void get_handler_name(char *str, size_t size,
> >> struct evsel *evsel)
> >> {
> >> @@ -1999,6 +2040,7 @@ struct scripting_ops python_scripting_ops = {
> >> .stop_script = python_stop_script,
> >> .process_event = python_process_event,
> >> .process_switch = python_process_switch,
> >> + .process_auxtrace_error = python_process_auxtrace_error,
> >> .process_stat = python_process_stat,
> >> .process_stat_interval = python_process_stat_interval,
> >> .generate_script = python_generate_script,
> >> diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
> >> index 7276674e2971..35c354a15c3a 100644
> >> --- a/tools/perf/util/trace-event.h
> >> +++ b/tools/perf/util/trace-event.h
> >> @@ -83,6 +83,8 @@ struct scripting_ops {
> >> void (*process_switch)(union perf_event *event,
> >> struct perf_sample *sample,
> >> struct machine *machine);
> >> + void (*process_auxtrace_error)(struct perf_session *session,
> >> + union perf_event *event);
> >> void (*process_stat)(struct perf_stat_config *config,
> >> struct evsel *evsel, u64 tstamp);
> >> void (*process_stat_interval)(u64 tstamp);
> >> --
> >> 2.17.1
> >>
> >
>

--

- Arnaldo