From patchwork Thu Sep 29 14:35:37 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaldo Carvalho de Melo X-Patchwork-Id: 9356499 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E4610600C8 for ; Thu, 29 Sep 2016 14:38:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D0B0029ADC for ; Thu, 29 Sep 2016 14:38:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C537A29ADE; Thu, 29 Sep 2016 14:38:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3329229ADC for ; Thu, 29 Sep 2016 14:38:16 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bpcS0-0007pD-Kp; Thu, 29 Sep 2016 14:36:40 +0000 Received: from merlin.infradead.org ([2001:4978:20e::2]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bpcRf-0007hA-Nz for linux-arm-kernel@bombadil.infradead.org; Thu, 29 Sep 2016 14:36:19 +0000 Received: from 179-240-180-13.3g.claro.net.br ([179.240.180.13] helo=jouet.infradead.org) by merlin.infradead.org with esmtpsa (Exim 4.85_2 #1 (Red Hat Linux)) id 1bpcRe-0001t9-7P; Thu, 29 Sep 2016 14:36:18 +0000 Received: by jouet.infradead.org (Postfix, from userid 1000) id C4D851415E3; Thu, 29 Sep 2016 11:36:09 -0300 (BRT) From: Arnaldo Carvalho de Melo To: Ingo Molnar Subject: [PATCH 08/27] perf evsel: Add support for address filters Date: Thu, 29 Sep 2016 11:35:37 -0300 Message-Id: <1475159756-21326-9-git-send-email-acme@kernel.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1475159756-21326-1-git-send-email-acme@kernel.org> References: <1475159756-21326-1-git-send-email-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by merlin.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mathieu Poirier , Alexander Shishkin , linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , Peter Zijlstra , Jiri Olsa , Linux Weekly News , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Mathieu Poirier This patch makes it possible to use the current filter framework with address filters. That way address filters for HW tracers such as CoreSight and Intel PT can be communicated to the kernel drivers. Signed-off-by: Mathieu Poirier Acked-by: Adrian Hunter Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Peter Zijlstra Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1474037045-31730-4-git-send-email-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evsel.c | 5 +++++ tools/perf/util/evsel.h | 2 ++ tools/perf/util/parse-events.c | 39 ++++++++++++++++++++++++++++++++++----- 3 files changed, 41 insertions(+), 5 deletions(-) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 3b4e7c452e43..380e84c3af3d 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1067,6 +1067,11 @@ int perf_evsel__append_tp_filter(struct perf_evsel *evsel, const char *filter) return perf_evsel__append_filter(evsel, "(%s) && (%s)", filter); } +int perf_evsel__append_addr_filter(struct perf_evsel *evsel, const char *filter) +{ + return perf_evsel__append_filter(evsel, "%s,%s", filter); +} + int perf_evsel__enable(struct perf_evsel *evsel) { int nthreads = thread_map__nr(evsel->threads); diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 1f8c48f87f7d..b1503b0ecdff 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -236,6 +236,8 @@ void perf_evsel__set_sample_id(struct perf_evsel *evsel, int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter); int perf_evsel__append_tp_filter(struct perf_evsel *evsel, const char *filter); +int perf_evsel__append_addr_filter(struct perf_evsel *evsel, + const char *filter); int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads, const char *filter); int perf_evsel__enable(struct perf_evsel *evsel); diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 16bf09cc3e8d..33546c3ac1fe 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1760,20 +1760,49 @@ foreach_evsel_in_last_glob(struct perf_evlist *evlist, static int set_filter(struct perf_evsel *evsel, const void *arg) { const char *str = arg; + bool found = false; + int nr_addr_filters = 0; + struct perf_pmu *pmu = NULL; - if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) { - fprintf(stderr, - "--filter option should follow a -e tracepoint option\n"); - return -1; + if (evsel == NULL) + goto err; + + if (evsel->attr.type == PERF_TYPE_TRACEPOINT) { + if (perf_evsel__append_tp_filter(evsel, str) < 0) { + fprintf(stderr, + "not enough memory to hold filter string\n"); + return -1; + } + + return 0; } - if (perf_evsel__append_tp_filter(evsel, str) < 0) { + while ((pmu = perf_pmu__scan(pmu)) != NULL) + if (pmu->type == evsel->attr.type) { + found = true; + break; + } + + if (found) + perf_pmu__scan_file(pmu, "nr_addr_filters", + "%d", &nr_addr_filters); + + if (!nr_addr_filters) + goto err; + + if (perf_evsel__append_addr_filter(evsel, str) < 0) { fprintf(stderr, "not enough memory to hold filter string\n"); return -1; } return 0; + +err: + fprintf(stderr, + "--filter option should follow a -e tracepoint or HW tracer option\n"); + + return -1; } int parse_filter(const struct option *opt, const char *str,