From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751115AbeEUHEG (ORCPT ); Mon, 21 May 2018 03:04:06 -0400 Received: from mga18.intel.com ([134.134.136.126]:53610 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750993AbeEUHEC (ORCPT ); Mon, 21 May 2018 03:04:02 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,426,1520924400"; d="scan'208";a="57007321" From: Jin Yao To: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org, mingo@redhat.com, alexander.shishkin@linux.intel.com Cc: Linux-kernel@vger.kernel.org, ak@linux.intel.com, kan.liang@intel.com, yao.jin@intel.com, Jin Yao Subject: [PATCH v4 1/3] perf evlist: Create new function perf_evlist__force_leader Date: Mon, 21 May 2018 22:57:44 +0800 Message-Id: <1526914666-31839-2-git-send-email-yao.jin@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1526914666-31839-1-git-send-email-yao.jin@linux.intel.com> References: <1526914666-31839-1-git-send-email-yao.jin@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For non-explicit group, perf report supports a option '--group' which can enable group output. We also need to support perf annotate with the same '--group'. Create a new function perf_evlist__force_leader which contains common code to force setting the group leader. Signed-off-by: Jin Yao --- tools/perf/util/evlist.c | 15 +++++++++++++++ tools/perf/util/evlist.h | 3 +++ 2 files changed, 18 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index a59281d..e7a4b31 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1795,3 +1795,18 @@ bool perf_evlist__exclude_kernel(struct perf_evlist *evlist) return true; } + +/* + * Events in data file are not collect in groups, but we still want + * the group display. Set the artificial group and set the leader's + * forced_leader flag to notify the display code. + */ +void perf_evlist__force_leader(struct perf_evlist *evlist) +{ + if (!evlist->nr_groups) { + struct perf_evsel *leader = perf_evlist__first(evlist); + + perf_evlist__set_leader(evlist); + leader->forced_leader = true; + } +} diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 6c41b2f..dc66436 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -309,4 +309,7 @@ struct perf_evsel *perf_evlist__event2evsel(struct perf_evlist *evlist, union perf_event *event); bool perf_evlist__exclude_kernel(struct perf_evlist *evlist); + +void perf_evlist__force_leader(struct perf_evlist *evlist); + #endif /* __PERF_EVLIST_H */ -- 2.7.4