From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f202.google.com (mail-dy1-f202.google.com [74.125.82.202]) (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 B231E366052 for ; Sat, 25 Apr 2026 17:49:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777139375; cv=none; b=YboePT/TEaFOpsaiB5ITTQ4dr/hTsXZBjd+2UIfDNctiMLgn+n+7iN7tYMr7llNqzzSsUtquHVuidjsTuP0R57Rdlzbn4RgLYBw45AgWzwaDdDvFinzJuoIkSl4AqcMntwBn9RhLHxuQrCU+yJZMLSEM3WzKejVrs6UmCWI0UJA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777139375; c=relaxed/simple; bh=ya+t7IUOpRNk8Fu/0uERle+8OciY3+nM0FzIdh4j4hM=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=lrSkDXIpurtwk666Zf2AVx4HxX1eo0GdNe6zmTwomd2XIHt5HJFwwW6youQ7wSzGWmPVHEnNNYwScxrJxcii8kkGFRcm8va6+Ixu+H8H1lE8EnXr5KKUdwjXC51l1SBbDn2QqE9zymZRFc1vmAyI6t1Zf6meVq9550FNf5dJqQ8= 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=nvRHlznB; arc=none smtp.client-ip=74.125.82.202 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="nvRHlznB" Received: by mail-dy1-f202.google.com with SMTP id 5a478bee46e88-2bdd327d970so5447042eec.1 for ; Sat, 25 Apr 2026 10:49:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1777139373; x=1777744173; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=Fm4BzhaiNoNEhqaEIRecziDxpgSmNxYS1qVSWQUr3vA=; b=nvRHlznBYc1NpO7P6wfIX9PiHdlKmbreYJgEiz10qvbLuvVsO81fKvoKH+TV5QnK0q S9xFLEPPPKgqPirS0SWoQfqoUWU4hH+1uGJHsCBvILO7vF2TdoD8R8VDNbBi5SfNXpYw 4ZToUAAlKAgsNfV62BovdMUO4Rr65loYR1yIt0D+FRl+sLdG+TJoUYoWgKRcIqtOhgU3 xLAq2Eiv6txgA1cLDezkZovSFnb33RhT9sw3WoprxuXRRm954dotSJHPEIOZ71RRLJ+X 1QLlaF6Y1d5u07zj2x75EXgGGpfosyS69MZVfnZ4+giMgJFDYorh7jDvSfcdFguH34rZ azow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777139373; x=1777744173; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Fm4BzhaiNoNEhqaEIRecziDxpgSmNxYS1qVSWQUr3vA=; b=isoxTbMQuO//dLbTD6G+DRi0H7Zd+27PCftyPx6deiTQkz0rsTnpgttGv4WRWVRWjU CPBSZq268DcBH0EiVx7dJsjIx/DAdTO+Po/Krh+IGwYarduTrWdmhXmESa65Xni/DtQX iGx+8TNB3VcFljb08qnvyfi0Oem/WPdrmDogA8z2iHcZhB5LeVEUYLQxwQdb1LRRYJFI LXVf8hZVhB9P0Ixv4TzJjzcyt2xpke2LzijzskIEQrnODGJ5lewAfsEW3t/qZ3ynkRhZ tB9e8pwlWZK021QQK5jyoK9Ov9F/oxHpFXrSyhSeKfpnNGo3JegIrz48eufIRoRCZ2Cd OZoA== X-Forwarded-Encrypted: i=1; AFNElJ+hvmczQ4aY5U8Hd8U5MS4u0+FmnJdlHx+N9MSJHlM6L7MrefPH0ey9KZMhEsvz3ZJcs0SmmTAgPkOxfOTtbd+n@vger.kernel.org X-Gm-Message-State: AOJu0YyzkYaJaXhv44mymwJFjXZpErPRp/HhhULwe+ZRBqo3yvrpt1wY 2nq8ZYABkGkNqsXitHvm32NjK7zpEL0SKXhDUzu8AynMK3bPeK32Uw8lixoHL4tsd/T0p2sr6en jjkHbFgyfaQ== X-Received: from dybta16.prod.google.com ([2002:a05:7301:6f10:b0:2d8:9b3:87f2]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7300:ec07:b0:2d8:4dee:6ad0 with SMTP id 5a478bee46e88-2e42e20295amr14273592eec.16.1777139372620; Sat, 25 Apr 2026 10:49:32 -0700 (PDT) Date: Sat, 25 Apr 2026 10:48:14 -0700 In-Reply-To: <20260425174858.3922152-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260424164721.2229025-1-irogers@google.com> <20260425174858.3922152-1-irogers@google.com> X-Mailer: git-send-email 2.54.0.545.g6539524ca2-goog Message-ID: <20260425174858.3922152-17-irogers@google.com> Subject: [PATCH v6 16/59] perf python: Add syscall name/id to convert syscall number and name From: Ian Rogers To: acme@kernel.org, adrian.hunter@intel.com, james.clark@linaro.org, leo.yan@linux.dev, namhyung@kernel.org, tmricht@linux.ibm.com Cc: alice.mei.rogers@gmail.com, dapeng1.mi@linux.intel.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, Ian Rogers Content-Type: text/plain; charset="UTF-8" Use perf's syscalltbl support to convert syscall number to name assuming the number is for the host machine. This avoids python libaudit support as tools/perf/scripts/python/syscall-counts.py requires. Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers --- v2: 1. Guarded with HAVE_LIBTRACEEVENT : Wrapped the syscall functions and their entries in perf__methods with #ifdef HAVE_LIBTRACEEVENT to avoid potential linker errors if CONFIG_TRACE is disabled. 2. Changed Exception Type: Updated pyrf__syscall_id to raise a ValueError instead of a TypeError when a syscall is not found. 3. Fixed Typo: Corrected "name number" to "name" in the docstring for syscall_id. v6: - Added optional keyword-only `elf_machine` argument to `syscall_name` and `syscall_id`. --- tools/perf/util/python.c | 48 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index d10359abd1ea..a10c4a292756 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -13,6 +13,7 @@ #include "counts.h" #include "data.h" #include "debug.h" +#include "dwarf-regs.h" #include "event.h" #include "evlist.h" #include "evsel.h" @@ -25,6 +26,7 @@ #include "session.h" #include "strbuf.h" #include "symbol.h" +#include "syscalltbl.h" #include "thread.h" #include "thread_map.h" #include "tool.h" @@ -2635,6 +2637,40 @@ static int pyrf_session__setup_types(void) return PyType_Ready(&pyrf_session__type); } +static PyObject *pyrf__syscall_name(PyObject *self, PyObject *args, PyObject *kwargs) +{ + const char *name; + int id; + int elf_machine = EM_HOST; + static char * const kwlist[] = { "id", "elf_machine", NULL }; + + if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|$i", kwlist, &id, &elf_machine)) + return NULL; + + name = syscalltbl__name(elf_machine, id); + if (!name) + Py_RETURN_NONE; + return PyUnicode_FromString(name); +} + +static PyObject *pyrf__syscall_id(PyObject *self, PyObject *args, PyObject *kwargs) +{ + const char *name; + int id; + int elf_machine = EM_HOST; + static char * const kwlist[] = { "name", "elf_machine", NULL }; + + if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|$i", kwlist, &name, &elf_machine)) + return NULL; + + id = syscalltbl__id(elf_machine, name); + if (id < 0) { + PyErr_Format(PyExc_ValueError, "Failed to find syscall %s", name); + return NULL; + } + return PyLong_FromLong(id); +} + static PyMethodDef perf__methods[] = { { .ml_name = "metrics", @@ -2668,6 +2704,18 @@ static PyMethodDef perf__methods[] = { .ml_flags = METH_NOARGS, .ml_doc = PyDoc_STR("Returns a sequence of pmus.") }, + { + .ml_name = "syscall_name", + .ml_meth = (PyCFunction) pyrf__syscall_name, + .ml_flags = METH_VARARGS | METH_KEYWORDS, + .ml_doc = PyDoc_STR("Turns a syscall number to a string.") + }, + { + .ml_name = "syscall_id", + .ml_meth = (PyCFunction) pyrf__syscall_id, + .ml_flags = METH_VARARGS | METH_KEYWORDS, + .ml_doc = PyDoc_STR("Turns a syscall name to a number.") + }, { .ml_name = NULL, } }; -- 2.54.0.545.g6539524ca2-goog