From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 05F4AC433EF for ; Fri, 25 Feb 2022 10:36:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239595AbiBYKgl (ORCPT ); Fri, 25 Feb 2022 05:36:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239591AbiBYKgk (ORCPT ); Fri, 25 Feb 2022 05:36:40 -0500 X-Greylist: delayed 63 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Fri, 25 Feb 2022 02:36:08 PST Received: from esa3.hc1455-7.c3s2.iphmx.com (esa3.hc1455-7.c3s2.iphmx.com [207.54.90.49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D73F52399FF; Fri, 25 Feb 2022 02:36:08 -0800 (PST) IronPort-SDR: mF18xzTCaAF9LizDX+nLBTJqAkHxAuMIqcLxSk0viGbRNjnMM7Q4e7FzSMKi5AzkbBY4QyoLsG ke91y1/gSqHpyu3ImsQap9BFetH/KjsUsqL9zXTfHMHjCTKNZ6TA6whir4+c7mEFweE93k1JNY hZTe4shcAL5a4UyPpdzUuvtzk53Fnh2SY1GyKxkEfveOhfMrdSnm9dHnw7A9GwfQeTh9tCWyV5 kKNFA9NEYskKp09bGLsQ0P8SSNI3C9WSGwNW66mi6FExupn7qQXhdfrHcP4XRSpKu6+ACrRXIo C8NmtOoJzEoP43z4Rh8O0lVr X-IronPort-AV: E=McAfee;i="6200,9189,10268"; a="64248419" X-IronPort-AV: E=Sophos;i="5.90,136,1643641200"; d="scan'208";a="64248419" Received: from unknown (HELO yto-r3.gw.nic.fujitsu.com) ([218.44.52.219]) by esa3.hc1455-7.c3s2.iphmx.com with ESMTP; 25 Feb 2022 19:35:03 +0900 Received: from yto-m3.gw.nic.fujitsu.com (yto-nat-yto-m3.gw.nic.fujitsu.com [192.168.83.66]) by yto-r3.gw.nic.fujitsu.com (Postfix) with ESMTP id A224BE8CF7; Fri, 25 Feb 2022 19:35:01 +0900 (JST) Received: from yto-om3.fujitsu.com (yto-om3.o.css.fujitsu.com [10.128.89.164]) by yto-m3.gw.nic.fujitsu.com (Postfix) with ESMTP id DD0EF14258; Fri, 25 Feb 2022 19:35:00 +0900 (JST) Received: from localhost.localdomain (bakeccha.fct.css.fujitsu.com [10.126.195.136]) by yto-om3.fujitsu.com (Postfix) with ESMTP id D810D40124EED; Fri, 25 Feb 2022 19:35:00 +0900 (JST) From: Shunsuke To: peterz@infradead.org, mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@redhat.com, namhyung@kernel.org Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Subject: [RFC PATCH 0/7] libperf: Add overflow detection of sampling events Date: Fri, 25 Feb 2022 19:31:07 +0900 Message-Id: <20220225103114.144239-1-nakamura.shun@fujitsu.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org From: Shunsuke Nakamura This patch series adds sampling event overflow detection capability to libperf. First patch fixes a typo in the error message that I noticed. Second patch adds a interface to set PERF_FLAG_FD_CLOEXEC Third patch adds a interface to perform IOC_REFRESH and IOC_PERIOD. Fourth patch adds a interface to set the signal handler. Fifth patch adds a interface to detect overflowed events. Sixth and seventh patch adds tests. Shunsuke Nakamura (7): libperf tests: Fix typo in the error message "evsel" -> "evlist" libperf: Add perf_evsel__set_close_on_exec() function libperf: Add perf_evsel__refresh()/period() functions libperf: Add perf_evsel__set_signal() functions libperf: Add perf_evsel__check_fd() functions libperf test: Add test_stat_overflow() libperf test: Add test_detect_overflow_event() tools/lib/perf/Documentation/libperf.txt | 12 ++ tools/lib/perf/evsel.c | 215 ++++++++++++++++++++++- tools/lib/perf/include/internal/evsel.h | 2 + tools/lib/perf/include/perf/evsel.h | 14 ++ tools/lib/perf/libperf.map | 9 + tools/lib/perf/tests/test-evlist.c | 127 ++++++++++++- tools/lib/perf/tests/test-evsel.c | 110 ++++++++++++ tools/perf/util/evsel.c | 16 +- tools/perf/util/evsel.h | 1 - 9 files changed, 487 insertions(+), 19 deletions(-) -- 2.31.1