From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f201.google.com (mail-dy1-f201.google.com [74.125.82.201]) (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 B4CE13CF67A for ; Sat, 13 Jun 2026 07:11:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781334704; cv=none; b=tAW24FM16kUf5wyCph7DEJF4QgoEnPGmcYvjhYIpg2hRSU4xpQ+TFp6TNd5k9nzGMuKLDYFA2VvR37TNC1E4jo85M3Y5APE6jjuE5siZ6sI8GaEQBQ3MmpfnwMEntzg9/OCNkAF1aX1jq2ScR43Lusxghk4JuJuL9ThhJ4ON/xo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781334704; c=relaxed/simple; bh=0Rv98vqbuYTS4rdYxKrShUD/SOBpPPgcPyMeBYIp0cU=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=Y/lhg96PcqVjwDo5YFOTCameTSisBtslcm2NeH6GImF20eb/+3iEYbauQ6aAAiDqiFvoqhe9lmnFQY6II6HBItRjTzAA1Njk5g9YYZkpogjZp2T3bTacx3Cmpvw1+X3On+0WlJbPVbndXeHntiMOoADfoTchUHb6YM0Q126cBRE= 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=mPneYgIk; arc=none smtp.client-ip=74.125.82.201 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="mPneYgIk" Received: by mail-dy1-f201.google.com with SMTP id 5a478bee46e88-30762d67a64so2593293eec.0 for ; Sat, 13 Jun 2026 00:11:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1781334697; x=1781939497; 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=vBekA9pBLPOjmpSUevxXY5H8lVRG7mdj5IaASPiGeLQ=; b=mPneYgIkRTS1l/tbJ+f+8a4s/QWH3d+gOiVqmPopEx46+lQ3Ja34vbC4sefLUvakAI INKCKpwlEt3nyx+7ZHNR90G6WJj/8hX0wsTfgXkhlIgYoIJzUd3nJ+sb6aRNYXwZyy2i BQsHrqHTCBeAqsQlApSp7VFB7Hhsy01Obi6jkOVKx3BxeCD/TpBqUXFeDgr2dwH4aZVM mD7a+bHBmgvzEqKYuwkVF3AidfrBjcjmRwRoeYWfZeDvZzMEeTTVUG2CGvavpQ5hgX93 1SraEk/D7bRMNq08DntKenyWJJdgvsr7DGIzh7a0Gqlsywt0ZtxUOwXvHfvydrFs2nmj wiOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781334697; x=1781939497; 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=vBekA9pBLPOjmpSUevxXY5H8lVRG7mdj5IaASPiGeLQ=; b=ptURJd+r7QegZFz3SEU7Oi3RNONQNRCeecX06/80r98+MKUwvrJMR85n7Sisihxfb6 kSb0lc/OvURdppS8/r3vEfcTCa4dsEwun/9INXp3/5B0UmrfY5Cif/MY/drtpymEglDC QFjiRtPLmNr7oS95A0qv/eXAUet85vOLSNQA9W1ywDopZTa8wJtMSxyBWVGy90SUxyeE 9a7GYsSQSCpKdaA6WxFK0XeArjRWl4NXOooP3OJiiGdH4lXiOyIZaiVflyzyGV2Pf/Md eRmnE8wyUMICFZ8DTS7I/RNCLG7drUvdHgKdCu91LmbgLqvsfl+d1KzAgVs/gOFps11I K3bw== X-Forwarded-Encrypted: i=1; AFNElJ+3IUTaQpq3H5FIMF9th/w4ZWgxxLI1vfZzmxmM/0Gfvp+L8ZBNLb43Lt9+gdUZ22qpYKG4qZ9DNGR1nY/skN8K@vger.kernel.org X-Gm-Message-State: AOJu0YzfhJ0An2LhPLUxPTxegN3Oda9TtEq0FhnSb3iFIuWr14DUQTGj 3GT/RMYWJVKpolE0wzelKtaJCR9xDewqvY1N8C7QN5d1uC8Qe5YBZ+saTSZ+TWDhQ3BKyK74RAb 9N/r5dhYYVg== X-Received: from dyek34.prod.google.com ([2002:a05:7300:6422:b0:2f7:767f:edc3]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7300:3202:b0:304:d788:ac5 with SMTP id 5a478bee46e88-308200c9097mr3997979eec.35.1781334696485; Sat, 13 Jun 2026 00:11:36 -0700 (PDT) Date: Sat, 13 Jun 2026 00:10:56 -0700 In-Reply-To: <20260613071100.1508192-1-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: <20260613052722.1424093-1-irogers@google.com> <20260613071100.1508192-1-irogers@google.com> X-Mailer: git-send-email 2.54.0.1136.gdb2ca164c4-goog Message-ID: <20260613071100.1508192-17-irogers@google.com> Subject: [PATCH v17 16/20] perf python: Add syscall name/id to convert syscall number and name From: Ian Rogers To: irogers@google.com, acme@kernel.org, namhyung@kernel.org Cc: adrian.hunter@intel.com, alice.mei.rogers@gmail.com, dapeng1.mi@linux.intel.com, james.clark@linaro.org, leo.yan@linux.dev, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tmricht@linux.ibm.com 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`. v7: - Made syscalltbl.o unconditional in Build to fix undefined symbol when building without libtraceevent. --- tools/perf/util/Build | 1 - tools/perf/util/python.c | 48 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 48 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/Build b/tools/perf/util/Build index b22cdc24082a..cb180dd77222 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -75,7 +75,6 @@ perf-util-y += sample.o perf-util-y += sample-raw.o perf-util-y += s390-sample-raw.o perf-util-y += amd-sample-raw.o - perf-util-y += ordered-events.o perf-util-y += namespaces.o perf-util-y += comm.o diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index 0ddcaa054cf9..8b708d29b1cc 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -21,6 +21,7 @@ #include "data.h" #include "debug.h" #include "dso.h" +#include "dwarf-regs.h" #include "event.h" #include "branch.h" #include "evlist.h" @@ -40,6 +41,7 @@ #include "symbol.h" #include "stat.h" #include "header.h" +#include "trace/beauty/syscalltbl.h" #include "thread.h" #include "thread_map.h" #include "tool.h" @@ -3944,6 +3946,40 @@ 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 *kwlist[] = { "id", "elf_machine", NULL }; + + if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|$i", kwlist, &id, &elf_machine)) + return NULL; + + name = syscalltbl__name(elf_machine, id); + if (!name) + Py_RETURN_NONE; + return PyUnicode_FromString(name); +} + +static PyObject *pyrf__syscall_id(PyObject *self, PyObject *args, PyObject *kwargs) +{ + const char *name; + int id; + int elf_machine = EM_HOST; + static char *kwlist[] = { "name", "elf_machine", NULL }; + + if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|$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", @@ -3977,6 +4013,18 @@ 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, } }; -- 2.54.0.1136.gdb2ca164c4-goog