From mboxrd@z Thu Jan 1 00:00:00 1970 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 112C18121F for ; Thu, 31 Oct 2024 01:43:23 +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=1730339006; cv=none; b=us/1lmMIG+JNYj9VE+xY6C/YCvGGzDQGeItOoBvafj6Pegah3bCKJcfYKCoMfsgYqT+jUSAB9cenvsIEGqwKYo/jlECDaeZniEZV+VcyNf4sEGS9tx4KK7K6OtOOR807aZWmAHA90MWNSFoZJ+Oi1i57bHvWyXAVN+VPogoKKy8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730339006; c=relaxed/simple; bh=CiUzxYw0RBvkytit97TqdNjM6aeeFRoA/HnhpHqF9To=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=LK2+W9yeKFpZIvppxVR+R8pQykCSIIKeWELvLVpGWCoOFV8TPyaxo21ZpCtwJkN0kNvbctVUlUEPJacoUuyMWfnjy37OHXZrAbasanAAqWlfg+GC9Ltp2zQbPoMgWJu0y6ZW4oRucJ/Ct9MDhL2vafzTILnKyKtr9WaciXXYTAU= 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=b1ITmQph; 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="b1ITmQph" Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-e28ef71f0d8so1016477276.0 for ; Wed, 30 Oct 2024 18:43:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1730339003; x=1730943803; 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=b1ITmQphzyo0NWIYiHMCP3Zzg/1nJ8qD1fb81tb8b4t2KoeWdPsMEKowhR8mum6PBs 3yRaBLrqK5QP13nU1j0D+1joT/HHDdtYIJQvw78HlEjjKKByde5tv2vJwhX4W4+X5fU4 HNu+NeHhOXjOFoBnepnoHJAHu1nhLuOKOTVzxBIWV9jkJ2MVZeDNyaN7LDNwHSO/QB2L wRmHuvu9igjs60vCM//+0UE6OdItA8gLHLnwWsCULrwVo+1nmVD9b/WHHmqyQwqQa+rj sOZKmglIBv+YThtKU4gUHmc26TrgR6PH8Gq9sBUvJc+fBWwVFyKYbyKxYf32QwopeOuc OWbg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730339003; x=1730943803; 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=lijn1zfXo65NtDND+jsV9Ka8QvxGKL4SHJMS2CpzPXXx4cktAyBkt4fb+mXcskXPiU PSASGPr4oiQw4i7LbwvcrOnx4iDMMgJ8/gpZ8cz2FjGJ4xadi/0AXJZ6szQwLvOgxk6v Mm3OPiX/7WHN4YfCv5Dsnl9CXKdkycsTKDhXdBJLpVGk2URC7PnOuHI1yU+JlbftX8dg 1GZ7NMcIEdjtjhQ2QAdDhhTHS2acDGmMWdaibCkvElxYmPLo41qv74KyjtruY3E+IgYr oK1BHD6Qs9NF5ZNpKa4hS4AkOtl2E3u1sjnoHIg7+iZ2/H18nH38SYpwaabflr/p2HPx cnFg== X-Forwarded-Encrypted: i=1; AJvYcCXubmdCTs5oboFDxUbxkX3mA5PUfZomEi+RnnIRrMCzvC8xCobojCmCujkilyHYBocUV9nXDWJ8gJDjs3U=@vger.kernel.org X-Gm-Message-State: AOJu0YyAAQLErOqm3zj7YSp1ss5jqvgedmap27n6eRYmtrNpx4M7CtSm YL/99vYlUVd1HTyEwOGSGBJW6mlfCFoDDMjJJ4hyRUxy7fEyRwBwFo475LfngtwZcxnoJ25xUmc iouvs4g== X-Google-Smtp-Source: AGHT+IERr2h5rI0Yp0296WNZHggnGMCv8xggBo62YaI3NX5rYRlIStfpNu+t5hy24D65mXLs/Z42vu/beuTi X-Received: from irogers.svl.corp.google.com ([2620:15c:2c5:11:ad0f:67e7:f1a6:84c4]) (user=irogers job=sendgmr) by 2002:a5b:2ca:0:b0:e30:bf92:7a64 with SMTP id 3f1490d57ef6-e30bf927b96mr5303276.2.1730339002925; Wed, 30 Oct 2024 18:43:22 -0700 (PDT) Date: Wed, 30 Oct 2024 18:42:33 -0700 In-Reply-To: <20241031014252.753588-1-irogers@google.com> Message-Id: <20241031014252.753588-3-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241031014252.753588-1-irogers@google.com> X-Mailer: git-send-email 2.47.0.163.g1226f6d8fa-goog Subject: [PATCH v5 02/21] 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 , Josh Poimboeuf , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org 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"), -static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object."); +static const char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object."); static PyMemberDef pyrf_mmap_event__members[] = { sample_members @@ -77,7 +77,7 @@ static PyMemberDef pyrf_mmap_event__members[] = { { .name = NULL, }, }; -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 = { .tp_repr = (reprfunc)pyrf_mmap_event__repr, }; -static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object."); +static const char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object."); static PyMemberDef pyrf_task_event__members[] = { sample_members @@ -119,7 +119,7 @@ static PyMemberDef pyrf_task_event__members[] = { { .name = NULL, }, }; -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 = { .tp_repr = (reprfunc)pyrf_task_event__repr, }; -static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object."); +static const char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object."); static PyMemberDef pyrf_comm_event__members[] = { sample_members @@ -152,7 +152,7 @@ static PyMemberDef pyrf_comm_event__members[] = { { .name = NULL, }, }; -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 = { .tp_repr = (reprfunc)pyrf_comm_event__repr, }; -static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object."); +static const char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object."); static PyMemberDef pyrf_throttle_event__members[] = { sample_members @@ -181,9 +181,10 @@ static PyMemberDef pyrf_throttle_event__members[] = { { .name = NULL, }, }; -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 = (struct perf_record_throttle *)(&pevent->event.header + 1); + const struct perf_record_throttle *te = (const struct perf_record_throttle *) + (&pevent->event.header + 1); 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 = { .tp_repr = (reprfunc)pyrf_throttle_event__repr, }; -static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object."); +static const char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object."); static PyMemberDef pyrf_lost_event__members[] = { sample_members @@ -210,7 +211,7 @@ static PyMemberDef pyrf_lost_event__members[] = { { .name = NULL, }, }; -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 = { .tp_repr = (reprfunc)pyrf_lost_event__repr, }; -static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object."); +static const char pyrf_read_event__doc[] = PyDoc_STR("perf read event object."); static PyMemberDef pyrf_read_event__members[] = { sample_members @@ -245,7 +246,7 @@ static PyMemberDef pyrf_read_event__members[] = { { .name = NULL, }, }; -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 = { .tp_repr = (reprfunc)pyrf_read_event__repr, }; -static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object."); +static const char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object."); static PyMemberDef pyrf_sample_event__members[] = { sample_members @@ -274,7 +275,7 @@ static PyMemberDef pyrf_sample_event__members[] = { { .name = NULL, }, }; -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) } #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 == PERF_TYPE_TRACEPOINT; } static PyObject* -tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field) +tracepoint_field(const struct pyrf_event *pe, struct tep_format_field *field) { struct tep_handle *pevent = field->event->tep; void *data = pe->sample.raw_data; @@ -384,7 +385,7 @@ static PyTypeObject pyrf_sample_event__type = { .tp_getattro = (getattrofunc) pyrf_sample_event__getattro, }; -static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object."); +static const char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object."); static PyMemberDef pyrf_context_switch_event__members[] = { sample_members @@ -394,7 +395,7 @@ static PyMemberDef pyrf_context_switch_event__members[] = { { .name = NULL, }, }; -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[] = { [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type, }; -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 = { .sq_item = pyrf_cpu_map__item, }; -static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object."); +static const char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object."); static PyTypeObject pyrf_cpu_map__type = { PyVarObject_HEAD_INIT(NULL, 0) @@ -611,7 +612,7 @@ static PySequenceMethods pyrf_thread_map__sequence_methods = { .sq_item = pyrf_thread_map__item, }; -static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object."); +static const char pyrf_thread_map__doc[] = PyDoc_STR("thread map object."); static PyTypeObject pyrf_thread_map__type = { PyVarObject_HEAD_INIT(NULL, 0) @@ -795,7 +796,7 @@ static PyMethodDef pyrf_evsel__methods[] = { { .ml_name = NULL, } }; -static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object."); +static const char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object."); static PyTypeObject pyrf_evsel__type = { PyVarObject_HEAD_INIT(NULL, 0) @@ -1078,7 +1079,7 @@ static PySequenceMethods pyrf_evlist__sequence_methods = { .sq_item = pyrf_evlist__item, }; -static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object."); +static const char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object."); static PyTypeObject pyrf_evlist__type = { PyVarObject_HEAD_INIT(NULL, 0) @@ -1100,10 +1101,12 @@ static int pyrf_evlist__setup_types(void) #define PERF_CONST(name) { #name, PERF_##name } -static struct { +struct perf_constant { const char *name; int value; -} perf__constants[] = { +}; + +static const struct perf_constant perf__constants[] = { PERF_CONST(TYPE_HARDWARE), PERF_CONST(TYPE_SOFTWARE), PERF_CONST(TYPE_TRACEPOINT), -- 2.47.0.163.g1226f6d8fa-goog