From nobody Sun Nov 24 01:10:24 2024 Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 80783195FD5 for ; Sat, 9 Nov 2024 06:19:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731133147; cv=none; b=nL1A0hs0flKhuPxTdCE7BxNlfEBEtLKxQEKj+43FcGQNiWI6Zhgf7MOa2czOkFCGcUMlyxcOM1zpmvtQY9vM9VK2dCCBOTRFyI4Fhgbgt/j5c8jRe5HnMWS8RPpJCB7mq7tgOjQenv8wKvqX2uQtsfyNWGt50nxf7qB5CAVjdZc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731133147; c=relaxed/simple; bh=lsCvQUmYtGoOUuABRkiGOOa4iuLoBIgGZXe26jet8vc=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=BtGWvKSXVOlR/atNkvb/uU/VhjUtRNyv61raE9euphQkvMeGTV3Rvhz8eNU0VegT+365JE8F2DF7C1VKnlZfavifku1Zd2Opn37IheuRD6k6Y4/wXtqOvY6AMzcmBIFL3aA1FKc3tAJ4Rb+jzdVkCiotrd4LGynvpWlw3aOp8gk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=wV2wEInt; arc=none smtp.client-ip=209.85.219.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="wV2wEInt" Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-e30df208cadso4907554276.0 for ; Fri, 08 Nov 2024 22:19:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1731133144; x=1731737944; darn=vger.kernel.org; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=idekZ5mqOfUQ8Rvlee93oJIg5nGKfz7rEzSROqbRTzY=; b=wV2wEInt4kSlduo9QPAd0HBYDCvjZWSdBUWyN4/5qrXYZGhmwJVK0nsY6jY5UGlqFe KSxY7WlPY4WS+EODXIChsoXe70/u0Kcw4jZf1EymInnf60J0kZAen0Lta2/Pv3KQ1al/ HlNrLr+5pf3nj5lg3/813es27ypdUCcnUuGCOGfCbhqybQsCFtOLelkouqQ2faYy72hF AVMGn0CP8RQXExMOz1JiKVo2Zu/T19aEDSYM2iMeaArB9MHlQZKMjerzBJ05OGQdMyXU F9Y/tD/7RM5FoPIkUhRiJNNUx8/oE08Nx5cT/qFUUveUqeZ3h0FkH6UkeRk2SBbXTMZI 1g5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731133144; x=1731737944; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=idekZ5mqOfUQ8Rvlee93oJIg5nGKfz7rEzSROqbRTzY=; b=eBu4Q9wr/+jXx80djvEWqjGtYxGPPz6MBzMweJkxd9qg/ZIaWl/uHU16zIsFd9suEB XibtPwAOIJzdu6yFrLQKlJXUzxAaPAbciIttmSEmze74ccb1jGdEZAHvgEee4qOXnmTI /NTgYnt2XeVUqEC/cDGS493RoCro8hocIE3975rEVbTvYWQL20nEpDGvZYoZ+nMev1eA mP6yv7TwFmNOiWjqDN8tGjjDlo2fihM9LsE474zHVQXMGAcxJjg7mcyJUhrAwoIUzq2x eNAxEWP2C0L8OmKRtmFWuRNPC/5w7bCYKW0G82F4yATITC2UbSFZOWmLHtokZZDJaXo9 Q/Fg== X-Forwarded-Encrypted: i=1; AJvYcCWlF4GejYofyCWvQe7FZP7gnmEVAzhqHD5dF0JFxI6oayoIQYnBDe5M0Q7+2Yv6UdveXX4kP6GPv8rZnoQ=@vger.kernel.org X-Gm-Message-State: AOJu0YyPbV2VVJkx3dcG+JITQiX0+CG5dXFs056gxDNFt7wg8SFa+zXt TMFvW49eHBD9lcruhHDLRYPNeUdA31qxLu2HfuLvwW60jtJwwSoTRYkwn59b6N+YUoTV5DKUq2Z dTJ1N/g== X-Google-Smtp-Source: AGHT+IGyOAbd6LiSlb+ikd+ZVqoL5bSigFnDGrfGby57ISP6b83CZyVUuKPP6kDcoDs0PsD9QvYPcMUj0gmZ X-Received: from irogers.svl.corp.google.com ([2620:15c:2c5:11:acc2:d48f:a998:5915]) (user=irogers job=sendgmr) by 2002:a25:d843:0:b0:e29:7454:e773 with SMTP id 3f1490d57ef6-e337e1d738cmr23283276.5.1731133144532; Fri, 08 Nov 2024 22:19:04 -0800 (PST) Date: Fri, 8 Nov 2024 22:18:06 -0800 In-Reply-To: <20241109061809.811922-1-irogers@google.com> Message-Id: <20241109061809.811922-20-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241109061809.811922-1-irogers@google.com> X-Mailer: git-send-email 2.47.0.277.g8800431eea-goog Subject: [PATCH v6 19/22] perf python: Add parse_events function From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , James Clark , Howard Chu , Athira Jajeev , Michael Petlan , Veronika Molnarova , Dapeng Mi , Thomas Richter , Ilya Leoshkevich , Colin Ian King , Weilin Wang , Andi Kleen , Josh Poimboeuf , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add basic parse_events function that takes a string and returns an evlist. As the python evlist is embedded in a pyrf_evlist, and the evsels are embedded in pyrf_evsels, copy the parsed data into those structs and update evsel__clone to enable this. Signed-off-by: Ian Rogers --- tools/perf/util/cgroup.c | 2 +- tools/perf/util/evsel.c | 19 ++++++++----- tools/perf/util/evsel.h | 2 +- tools/perf/util/python.c | 61 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 75 insertions(+), 9 deletions(-) diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c index 0f759dd96db7..fbcc0626f9ce 100644 --- a/tools/perf/util/cgroup.c +++ b/tools/perf/util/cgroup.c @@ -473,7 +473,7 @@ int evlist__expand_cgroup(struct evlist *evlist, const = char *str, =20 leader =3D NULL; evlist__for_each_entry(orig_list, pos) { - evsel =3D evsel__clone(pos); + evsel =3D evsel__clone(/*dest=3D*/NULL, pos); if (evsel =3D=3D NULL) goto out_err; =20 diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index f780e30aa259..4213ffacdc3c 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -453,7 +453,7 @@ static int evsel__copy_config_terms(struct evsel *dst, = struct evsel *src) * The assumption is that @orig is not configured nor opened yet. * So we only care about the attributes that can be set while it's parsed. */ -struct evsel *evsel__clone(struct evsel *orig) +struct evsel *evsel__clone(struct evsel *dest, struct evsel *orig) { struct evsel *evsel; =20 @@ -466,7 +466,11 @@ struct evsel *evsel__clone(struct evsel *orig) if (orig->bpf_obj) return NULL; =20 - evsel =3D evsel__new(&orig->core.attr); + if (dest) + evsel =3D dest; + else + evsel =3D evsel__new(&orig->core.attr); + if (evsel =3D=3D NULL) return NULL; =20 @@ -511,11 +515,12 @@ struct evsel *evsel__clone(struct evsel *orig) evsel->core.leader =3D orig->core.leader; =20 evsel->max_events =3D orig->max_events; - free((char *)evsel->unit); - evsel->unit =3D strdup(orig->unit); - if (evsel->unit =3D=3D NULL) - goto out_err; - + zfree(&evsel->unit); + if (orig->unit) { + evsel->unit =3D strdup(orig->unit); + if (evsel->unit =3D=3D NULL) + goto out_err; + } evsel->scale =3D orig->scale; evsel->snapshot =3D orig->snapshot; evsel->per_pkg =3D orig->per_pkg; diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 04934a7af174..7f41d6f8cf6f 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -241,7 +241,7 @@ static inline struct evsel *evsel__new(struct perf_even= t_attr *attr) return evsel__new_idx(attr, 0); } =20 -struct evsel *evsel__clone(struct evsel *orig); +struct evsel *evsel__clone(struct evsel *dest, struct evsel *orig); =20 int copy_config_terms(struct list_head *dst, struct list_head *src); void free_config_terms(struct list_head *config_terms); diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index 6e2ff0076daa..1a53a97c513d 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -13,6 +13,7 @@ #include "evsel.h" #include "event.h" #include "print_binary.h" +#include "strbuf.h" #include "thread_map.h" #include "trace-event.h" #include "mmap.h" @@ -1201,6 +1202,60 @@ static PyObject *pyrf__tracepoint(struct pyrf_evsel = *pevsel, #endif // HAVE_LIBTRACEEVENT } =20 +static PyObject *pyrf_evsel__from_evsel(struct evsel *evsel) +{ + struct pyrf_evsel *pevsel =3D PyObject_New(struct pyrf_evsel, &pyrf_evsel= __type); + + if (!pevsel) + return NULL; + + memset(&pevsel->evsel, 0, sizeof(pevsel->evsel)); + evsel__init(&pevsel->evsel, &evsel->core.attr, evsel->core.idx); + + evsel__clone(&pevsel->evsel, evsel); + return (PyObject *)pevsel; +} + +static PyObject *pyrf_evlist__from_evlist(struct evlist *evlist) +{ + struct pyrf_evlist *pevlist =3D PyObject_New(struct pyrf_evlist, &pyrf_ev= list__type); + struct evsel *pos; + + if (!pevlist) + return NULL; + + memset(&pevlist->evlist, 0, sizeof(pevlist->evlist)); + evlist__init(&pevlist->evlist, evlist->core.all_cpus, evlist->core.thread= s); + evlist__for_each_entry(evlist, pos) { + struct pyrf_evsel *pevsel =3D (void *)pyrf_evsel__from_evsel(pos); + + evlist__add(&pevlist->evlist, &pevsel->evsel); + } + return (PyObject *)pevlist; +} + +static PyObject *pyrf__parse_events(PyObject *self, PyObject *args) +{ + const char *input; + struct evlist evlist =3D {}; + struct parse_events_error err; + PyObject *result; + + if (!PyArg_ParseTuple(args, "s", &input)) + return NULL; + + parse_events_error__init(&err); + evlist__init(&evlist, NULL, NULL); + if (parse_events(&evlist, input, &err)) { + parse_events_error__print(&err, input); + PyErr_SetFromErrno(PyExc_OSError); + return NULL; + } + result =3D pyrf_evlist__from_evlist(&evlist); + evlist__exit(&evlist); + return result; +} + static PyMethodDef perf__methods[] =3D { { .ml_name =3D "tracepoint", @@ -1208,6 +1263,12 @@ static PyMethodDef perf__methods[] =3D { .ml_flags =3D METH_VARARGS | METH_KEYWORDS, .ml_doc =3D PyDoc_STR("Get tracepoint config.") }, + { + .ml_name =3D "parse_events", + .ml_meth =3D (PyCFunction) pyrf__parse_events, + .ml_flags =3D METH_VARARGS, + .ml_doc =3D PyDoc_STR("Parse a string of events and return an evlist.") + }, { .ml_name =3D NULL, } }; =20 --=20 2.47.0.277.g8800431eea-goog