From nobody Mon Nov 25 07:44:56 2024 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (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 089F020B1EF for ; Tue, 29 Oct 2024 22:44:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730241884; cv=none; b=oS9kVbbFMmNpPw35p9yO7GF+igS+OdAz4SSqMHnrP2XfCopQ8T9GCLAXcjlPM0me8hdee2weZg4DVLhqrpIH6A2L2pfrk95MOnQbQu0G3GXjAzBo5mprjmsxgvkHIIEQHnRh3mgZ7KKLwud6NyIZXyJmwsef1wyG1vc5xKEB7Ok= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730241884; c=relaxed/simple; bh=CiUzxYw0RBvkytit97TqdNjM6aeeFRoA/HnhpHqF9To=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=D4eQzq8s6OoS/ErDPdPBVy4aMF0EWob9UANRGqzOqXplu2SJFPX+58/ZRccQHOTRSaYWwHixYucF8DD8kPeVJPEgqB7y7jTdXu614fmBH48nmDxJJ4fgMmwGgIJm8v75Bmr2rJucT2scmiZOEcr6uKXbmcZRaARXacqlpMqFKjQ= 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=OVLOqlsx; arc=none smtp.client-ip=209.85.219.201 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="OVLOqlsx" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-e2954ada861so10216186276.3 for ; Tue, 29 Oct 2024 15:44:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1730241881; x=1730846681; 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=H603DVgWa6efETS0jocUXZJdUuhFvKOBL+70ertaUeY=; b=OVLOqlsxmegL6Vee/qEZnVPws2Ov9yW7065ekqMGCnhBotHnq5IhQhkjQcVEuBLRfZ BXqHu8qQjcrK+D42Zk1uZTMQ3uVYZY+pu6aQBw/o6LYAnemXtJp3GZdwTIi9QQYZMjnO mw2DAS8HnKCUx1SZuJ2KdqiSk73WgUYf1b5Ztvw0PdXzFbZojgMp00xYRRUD/tKxctd/ UxqanWcdBGTSTkxt6Q9cjQQuILsklEro8pyW5iftEpXf0PLUnpxWCBNhGcA7aLGJV1PQ I3u9PlTN7FGFWSwLRcyddt/rnMQr9H71MdE6lz/bbQBKnBBEdj3siiAXJSu0WpC2afOy 7QjQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730241881; x=1730846681; 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=H603DVgWa6efETS0jocUXZJdUuhFvKOBL+70ertaUeY=; b=aeD6MKvtsH8O4Dn8Z1Jr/WeqbcsFvx+dUkhlSYid+XOi6aQDYHZp1y0ifKSr0ULZE7 Vl+VFSQsAbMObeiT48KP8+IMleQZoAmwM8+VyXTtb1E21M5DwdGjkAJc8sISrqwU3ul5 SaZEu4d53YwT5jGKsFjRJPB4CHB9kCjy+FOQP9c16S269cUUYG/R6crrOLzzJVYSwS+g 0hwryTmCIEqncSt5PneMx7VE+skZJj7KVEkd3134npO6Z20HCTg6AIzhlgS1zcxHpunl 5QlP/DO1d+d9EnH90Z7KPxlp32gIvbVWGM6rz0rvVaGvdHJV9uE0N0+xDv/k7ok4D32E 06eg== X-Forwarded-Encrypted: i=1; AJvYcCVzFSqfDQNpbV2cht/lPe7NnroL9eu7dlNo237GpTgr+N9Mc4QsmjFEhOCizoHI9ycYobk2PgkJOvBzdDQ=@vger.kernel.org X-Gm-Message-State: AOJu0YwXhjS9pKcCaznwhJnu8+RBG2sQ8l/L45Vib8MV4PNjvZBFCDGu AK1sNf6bGXJYoNCPwfEPv0gL7mpNGNf0OLd/A6a5xpNbKHKujqgs4TBGl9iuicsMB+ryJVK227p VIQKh+w== X-Google-Smtp-Source: AGHT+IHagm+13IWW2EE3LQN6Gh3ePoggnEOFKoBcoJfbPY7ELsZApNJgOj+3zTWFaULAb7Et6fdw9xd/KVPS X-Received: from irogers.svl.corp.google.com ([2620:15c:2c5:11:8991:d3fd:38a7:c282]) (user=irogers job=sendgmr) by 2002:a25:a42a:0:b0:e2e:2b0f:19fc with SMTP id 3f1490d57ef6-e3087a6b354mr46270276.4.1730241880828; Tue, 29 Oct 2024 15:44:40 -0700 (PDT) Date: Tue, 29 Oct 2024 15:44:14 -0700 In-Reply-To: <20241029224431.167623-1-irogers@google.com> Message-Id: <20241029224431.167623-3-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241029224431.167623-1-irogers@google.com> X-Mailer: git-send-email 2.47.0.163.g1226f6d8fa-goog Subject: [PATCH v4 02/19] perf python: Constify variables and parameters 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 , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Opportunistically constify variables and parameters when possible. Signed-off-by: Ian Rogers --- tools/perf/util/python.c | 55 +++++++++++++++++++++------------------- 1 file changed, 29 insertions(+), 26 deletions(-) diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index 02279ab4967c..13dad27169a0 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -62,7 +62,7 @@ struct pyrf_event { sample_member_def(sample_period, period, T_ULONGLONG, "event period"), \ sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"), =20 -static char pyrf_mmap_event__doc[] =3D PyDoc_STR("perf mmap event object."= ); +static const char pyrf_mmap_event__doc[] =3D PyDoc_STR("perf mmap event ob= ject."); =20 static PyMemberDef pyrf_mmap_event__members[] =3D { sample_members @@ -77,7 +77,7 @@ static PyMemberDef pyrf_mmap_event__members[] =3D { { .name =3D NULL, }, }; =20 -static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent) +static PyObject *pyrf_mmap_event__repr(const struct pyrf_event *pevent) { PyObject *ret; char *s; @@ -106,7 +106,7 @@ static PyTypeObject pyrf_mmap_event__type =3D { .tp_repr =3D (reprfunc)pyrf_mmap_event__repr, }; =20 -static char pyrf_task_event__doc[] =3D PyDoc_STR("perf task (fork/exit) ev= ent object."); +static const char pyrf_task_event__doc[] =3D PyDoc_STR("perf task (fork/ex= it) event object."); =20 static PyMemberDef pyrf_task_event__members[] =3D { sample_members @@ -119,7 +119,7 @@ static PyMemberDef pyrf_task_event__members[] =3D { { .name =3D NULL, }, }; =20 -static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent) +static PyObject *pyrf_task_event__repr(const struct pyrf_event *pevent) { return PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, " "ptid: %u, time: %" PRI_lu64 "}", @@ -141,7 +141,7 @@ static PyTypeObject pyrf_task_event__type =3D { .tp_repr =3D (reprfunc)pyrf_task_event__repr, }; =20 -static char pyrf_comm_event__doc[] =3D PyDoc_STR("perf comm event object."= ); +static const char pyrf_comm_event__doc[] =3D PyDoc_STR("perf comm event ob= ject."); =20 static PyMemberDef pyrf_comm_event__members[] =3D { sample_members @@ -152,7 +152,7 @@ static PyMemberDef pyrf_comm_event__members[] =3D { { .name =3D NULL, }, }; =20 -static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent) +static PyObject *pyrf_comm_event__repr(const struct pyrf_event *pevent) { return PyUnicode_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }", pevent->event.comm.pid, @@ -170,7 +170,7 @@ static PyTypeObject pyrf_comm_event__type =3D { .tp_repr =3D (reprfunc)pyrf_comm_event__repr, }; =20 -static char pyrf_throttle_event__doc[] =3D PyDoc_STR("perf throttle event = object."); +static const char pyrf_throttle_event__doc[] =3D PyDoc_STR("perf throttle = event object."); =20 static PyMemberDef pyrf_throttle_event__members[] =3D { sample_members @@ -181,9 +181,10 @@ static PyMemberDef pyrf_throttle_event__members[] =3D { { .name =3D NULL, }, }; =20 -static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent) +static PyObject *pyrf_throttle_event__repr(const struct pyrf_event *pevent) { - struct perf_record_throttle *te =3D (struct perf_record_throttle *)(&peve= nt->event.header + 1); + const struct perf_record_throttle *te =3D (const struct perf_record_throt= tle *) + (&pevent->event.header + 1); =20 return PyUnicode_FromFormat("{ type: %sthrottle, time: %" PRI_lu64 ", id:= %" PRI_lu64 ", stream_id: %" PRI_lu64 " }", @@ -201,7 +202,7 @@ static PyTypeObject pyrf_throttle_event__type =3D { .tp_repr =3D (reprfunc)pyrf_throttle_event__repr, }; =20 -static char pyrf_lost_event__doc[] =3D PyDoc_STR("perf lost event object."= ); +static const char pyrf_lost_event__doc[] =3D PyDoc_STR("perf lost event ob= ject."); =20 static PyMemberDef pyrf_lost_event__members[] =3D { sample_members @@ -210,7 +211,7 @@ static PyMemberDef pyrf_lost_event__members[] =3D { { .name =3D NULL, }, }; =20 -static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent) +static PyObject *pyrf_lost_event__repr(const struct pyrf_event *pevent) { PyObject *ret; char *s; @@ -236,7 +237,7 @@ static PyTypeObject pyrf_lost_event__type =3D { .tp_repr =3D (reprfunc)pyrf_lost_event__repr, }; =20 -static char pyrf_read_event__doc[] =3D PyDoc_STR("perf read event object."= ); +static const char pyrf_read_event__doc[] =3D PyDoc_STR("perf read event ob= ject."); =20 static PyMemberDef pyrf_read_event__members[] =3D { sample_members @@ -245,7 +246,7 @@ static PyMemberDef pyrf_read_event__members[] =3D { { .name =3D NULL, }, }; =20 -static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent) +static PyObject *pyrf_read_event__repr(const struct pyrf_event *pevent) { return PyUnicode_FromFormat("{ type: read, pid: %u, tid: %u }", pevent->event.read.pid, @@ -266,7 +267,7 @@ static PyTypeObject pyrf_read_event__type =3D { .tp_repr =3D (reprfunc)pyrf_read_event__repr, }; =20 -static char pyrf_sample_event__doc[] =3D PyDoc_STR("perf sample event obje= ct."); +static const char pyrf_sample_event__doc[] =3D PyDoc_STR("perf sample even= t object."); =20 static PyMemberDef pyrf_sample_event__members[] =3D { sample_members @@ -274,7 +275,7 @@ static PyMemberDef pyrf_sample_event__members[] =3D { { .name =3D NULL, }, }; =20 -static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent) +static PyObject *pyrf_sample_event__repr(const struct pyrf_event *pevent) { PyObject *ret; char *s; @@ -289,13 +290,13 @@ static PyObject *pyrf_sample_event__repr(struct pyrf_= event *pevent) } =20 #ifdef HAVE_LIBTRACEEVENT -static bool is_tracepoint(struct pyrf_event *pevent) +static bool is_tracepoint(const struct pyrf_event *pevent) { return pevent->evsel->core.attr.type =3D=3D PERF_TYPE_TRACEPOINT; } =20 static PyObject* -tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field) +tracepoint_field(const struct pyrf_event *pe, struct tep_format_field *fie= ld) { struct tep_handle *pevent =3D field->event->tep; void *data =3D pe->sample.raw_data; @@ -384,7 +385,7 @@ static PyTypeObject pyrf_sample_event__type =3D { .tp_getattro =3D (getattrofunc) pyrf_sample_event__getattro, }; =20 -static char pyrf_context_switch_event__doc[] =3D PyDoc_STR("perf context_s= witch event object."); +static const char pyrf_context_switch_event__doc[] =3D PyDoc_STR("perf con= text_switch event object."); =20 static PyMemberDef pyrf_context_switch_event__members[] =3D { sample_members @@ -394,7 +395,7 @@ static PyMemberDef pyrf_context_switch_event__members[]= =3D { { .name =3D NULL, }, }; =20 -static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent) +static PyObject *pyrf_context_switch_event__repr(const struct pyrf_event *= pevent) { PyObject *ret; char *s; @@ -474,7 +475,7 @@ static PyTypeObject *pyrf_event__type[] =3D { [PERF_RECORD_SWITCH_CPU_WIDE] =3D &pyrf_context_switch_event__type, }; =20 -static PyObject *pyrf_event__new(union perf_event *event) +static PyObject *pyrf_event__new(const union perf_event *event) { struct pyrf_event *pevent; PyTypeObject *ptype; @@ -542,7 +543,7 @@ static PySequenceMethods pyrf_cpu_map__sequence_methods= =3D { .sq_item =3D pyrf_cpu_map__item, }; =20 -static char pyrf_cpu_map__doc[] =3D PyDoc_STR("cpu map object."); +static const char pyrf_cpu_map__doc[] =3D PyDoc_STR("cpu map object."); =20 static PyTypeObject pyrf_cpu_map__type =3D { PyVarObject_HEAD_INIT(NULL, 0) @@ -611,7 +612,7 @@ static PySequenceMethods pyrf_thread_map__sequence_meth= ods =3D { .sq_item =3D pyrf_thread_map__item, }; =20 -static char pyrf_thread_map__doc[] =3D PyDoc_STR("thread map object."); +static const char pyrf_thread_map__doc[] =3D PyDoc_STR("thread map object.= "); =20 static PyTypeObject pyrf_thread_map__type =3D { PyVarObject_HEAD_INIT(NULL, 0) @@ -795,7 +796,7 @@ static PyMethodDef pyrf_evsel__methods[] =3D { { .ml_name =3D NULL, } }; =20 -static char pyrf_evsel__doc[] =3D PyDoc_STR("perf event selector list obje= ct."); +static const char pyrf_evsel__doc[] =3D PyDoc_STR("perf event selector lis= t object."); =20 static PyTypeObject pyrf_evsel__type =3D { PyVarObject_HEAD_INIT(NULL, 0) @@ -1078,7 +1079,7 @@ static PySequenceMethods pyrf_evlist__sequence_method= s =3D { .sq_item =3D pyrf_evlist__item, }; =20 -static char pyrf_evlist__doc[] =3D PyDoc_STR("perf event selector list obj= ect."); +static const char pyrf_evlist__doc[] =3D PyDoc_STR("perf event selector li= st object."); =20 static PyTypeObject pyrf_evlist__type =3D { PyVarObject_HEAD_INIT(NULL, 0) @@ -1100,10 +1101,12 @@ static int pyrf_evlist__setup_types(void) =20 #define PERF_CONST(name) { #name, PERF_##name } =20 -static struct { +struct perf_constant { const char *name; int value; -} perf__constants[] =3D { +}; + +static const struct perf_constant perf__constants[] =3D { PERF_CONST(TYPE_HARDWARE), PERF_CONST(TYPE_SOFTWARE), PERF_CONST(TYPE_TRACEPOINT), --=20 2.47.0.163.g1226f6d8fa-goog