From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935311AbcIFQTm (ORCPT ); Tue, 6 Sep 2016 12:19:42 -0400 Received: from mail-yb0-f172.google.com ([209.85.213.172]:34490 "EHLO mail-yb0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934203AbcIFQT1 (ORCPT ); Tue, 6 Sep 2016 12:19:27 -0400 From: Mathieu Poirier To: acme@kernel.org Cc: mingo@redhat.com, peterz@infradead.org, alexander.shishkin@linux.intel.com, jolsa@kernel.org, acme@infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH V3] perf tools: adding support for address filters Date: Tue, 6 Sep 2016 10:19:23 -0600 Message-Id: <1473178763-2870-1-git-send-email-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 IntelPT can be communicated to the kernel drivers. CC: Alexander Shishkin Signed-off-by: Mathieu Poirier Acked-by: Jiri Olsa --- Changes for V3: - Added Jiri's ack. - Rebased to v4.8-rc5. Changes for V2: - Rebased to v4.8-rc4. - Revisited error path. --- tools/perf/util/parse-events.c | 30 +++++++++++++++++++++++++----- 1 file changed, 25 insertions(+), 5 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 2eb8b1ed4cc8..1df413fbf7f8 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1760,12 +1760,26 @@ 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; + + 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 (evsel->attr.type != PERF_TYPE_TRACEPOINT && !nr_addr_filters) + goto err; if (perf_evsel__append_filter(evsel, "&&", str) < 0) { fprintf(stderr, @@ -1774,6 +1788,12 @@ static int set_filter(struct perf_evsel *evsel, const void *arg) } 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, -- 2.7.4