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 94ED448B372 for ; Fri, 5 Jun 2026 07:41:04 +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=1780645268; cv=none; b=GYut3C4QWlUrbdhyaT63O3NitPcXDLIReeBT0b1Vld3smufQLQ6SUFRnYMf7X7ArvBBE7Uv5/GkEGeu+5sO5pRd5ixR/rOkCkj99/fdjfgW7Gn2NcEm696eKVDJEuTWHuhLiBHNHwaE5TAeXYQpYNN26F7MXeY/15V1M8OH3qa8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780645268; c=relaxed/simple; bh=RHRrkXXYcYNq62G+cS7Ng47p2C2OwfZEq52wF0NYtno=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=nbusSHfxt7a96psmaLDV3DFwiHu0z5nlb96p1MWR56SV8dg+45t25PUX8fkuUMC4BjRrCZ4vtf9kLKJPccVEU73IPJ/VbdeRJubA4VcoLpCnh6QK+muUwemR1LTWdVigqqMC+ZZ77VAOLaiwao8FXUd0Kluk6aekEjFST5uAKJg= 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=lpXYfX8K; 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="lpXYfX8K" Received: by mail-dy1-f201.google.com with SMTP id 5a478bee46e88-304b8d0ee63so2033882eec.0 for ; Fri, 05 Jun 2026 00:41:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1780645264; x=1781250064; 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=KF1KukU9Rk2Bs9+AAMOvCc6v+Vx5eW/rGfc2xWnqbwc=; b=lpXYfX8KzlCtcU9salsi34HZN982qE+gKXbnaSvA2KSC4Iu8LvkHDSBB8YNRBJ/CaM e02oW/keh8y2beXe84fubbb+vFZi0XaQBhLOGWUCd9oJxW0NrlNE0uDxvD8Qbgb4umeM a4emuurfYg/D5MFGoZ4Qyz5hsD/xL9bAYFAVcSSfno2e9sFhkJk9pe0wonmdmKlbvTgD C8s1x69JDgxXFD9eU1VgG3SYONa7+hfa+n3Um/jMnLv3BaelyXv5xV0j8E2hEPsOdpBv 4tBHxkolhb54V2Z4CdBOWWrKrUndsojD73t93FlryTvT8sy5ppw0ah1la0j2DDDsQmLs zJ2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780645264; x=1781250064; 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=KF1KukU9Rk2Bs9+AAMOvCc6v+Vx5eW/rGfc2xWnqbwc=; b=lQZfMbCD6hVKOklorTSkIVqG6P7KOvBWThkcZ9EnxJVVlYmEwgrgEc4OgSfSHfNNTE 1Fbvk0jPecwW30LOHNyCHYPcKo4lSceh5ZaJcfXjDM1q3yenhfzpTT3u3i9GCL1fKTki GUeB3flX48e2Bn5jl+vb31i2K9TSX01yEOPUCXPqhfm6tQaCcfBBRGIp0Jn5Jy24UfHU FeYa1r7zDjA8qxLD4edyQMnIG5uc2RNeMXluZYRT5RzxOSE51WkERXr44ZnnU3TXe9no WPaMg7w7pO7EdzQ6ABlzxoxKYG0MRzCtUu4uq6rlddGPKemqVc4Myyg0t1iRyNqfmKk2 kneA== X-Forwarded-Encrypted: i=1; AFNElJ/fGqrtJLTOo+HUmooslMnGZNY07SoacANYc8QIFOJm02D+MaepS/9nKm7JORbQiGMlu+Bv3pTusDDwwU4=@vger.kernel.org X-Gm-Message-State: AOJu0YxYu0bUkAFRLyHTSWAJBOlPCbNxaFOxi3DWyFC9UKqzqFJabhTU P1YTRvQ98EDUxAGFP/MFMfcLdKGAl4X5LhMAt01SIXmQYS6TfrSL7PVOecP4u4IUiucC1prK0WN 7FyQNoNiQhA== X-Received: from dyckg9.prod.google.com ([2002:a05:7301:d189:b0:304:e649:3ce4]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:693c:37c3:b0:304:de94:1c55 with SMTP id 5a478bee46e88-3077b38e7e4mr1190615eec.35.1780645263444; Fri, 05 Jun 2026 00:41:03 -0700 (PDT) Date: Fri, 5 Jun 2026 00:40:00 -0700 In-Reply-To: <20260605074003.1730715-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260522220435.2378363-1-irogers@google.com> <20260605074003.1730715-1-irogers@google.com> X-Mailer: git-send-email 2.54.0.1032.g2f8565e1d1-goog Message-ID: <20260605074003.1730715-17-irogers@google.com> Subject: [PATCH v10 16/19] 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 7265e2dcd60e..12a1379cdbed 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" @@ -38,6 +39,7 @@ #include "srcline.h" #include "strbuf.h" #include "symbol.h" +#include "trace/beauty/syscalltbl.h" #include "thread.h" #include "thread_map.h" #include "tool.h" @@ -4041,6 +4043,40 @@ 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", @@ -4074,6 +4110,18 @@ 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, } }; -- 2.54.0.1032.g2f8565e1d1-goog