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

From: Arnaldo Carvalho de Melo
Date: Tue May 25 2021 - 09:03:15 EST

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 :-)

I'll try making them the usual inlines, etc

- 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