linux-kernel - [tip:perf/core] perf hists browser: Offer 'Zoom into DSO'/' Map details' only when sort order has 'dso'

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Date:	Wed, 3 Feb 2016 02:11:58 -0800
From:	tip-bot for Namhyung Kim <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, namhyung@...nel.org, wangnan0@...wei.com,
	eranian@...gle.com, tglx@...utronix.de, mingo@...nel.org,
	dsahern@...il.com, peterz@...radead.org,
	linux-kernel@...r.kernel.org, andi@...stfloor.org, hpa@...or.com
Subject: [tip:perf/core] perf hists browser: Offer 'Zoom into DSO'/'
 Map details' only when sort order has 'dso'

Commit-ID:  b1447a54f5b41eaf1cc469d9bd3834caa2ff9afb
Gitweb:     http://git.kernel.org/tip/b1447a54f5b41eaf1cc469d9bd3834caa2ff9afb
Author:     Namhyung Kim <namhyung@...nel.org>
AuthorDate: Fri, 22 Jan 2016 11:22:41 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Tue, 26 Jan 2016 11:52:50 -0300

perf hists browser: Offer 'Zoom into DSO'/'Map details' only when sort order has 'dso'

We can't offer a zoom into DSO when a bucket (struct hist_entry) may
have samples for more than one DSO, i.e. when 'dso' is not part of
the sort order, ditto for 'Map details', fix it.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Andi Kleen <andi@...stfloor.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>,
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/r/1452960197-5323-9-git-send-email-namhyung@kernel.org
[ Carved out from a  larger patch, moved check to add_{dso,map}_opt() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/ui/browsers/hists.c | 4 ++--
 tools/perf/util/sort.h         | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 2801d80..e892106 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1825,7 +1825,7 @@ static int
 add_dso_opt(struct hist_browser *browser, struct popup_action *act,
 	    char **optstr, struct map *map)
 {
-	if (map == NULL)
+	if (!sort__has_dso || map == NULL)
 		return 0;
 
 	if (asprintf(optstr, "Zoom %s %s DSO",
@@ -1850,7 +1850,7 @@ static int
 add_map_opt(struct hist_browser *browser __maybe_unused,
 	    struct popup_action *act, char **optstr, struct map *map)
 {
-	if (map == NULL)
+	if (!sort__has_dso || map == NULL)
 		return 0;
 
 	if (asprintf(optstr, "Browse map details") < 0)
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 09616f0..89a1273 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -32,6 +32,7 @@ extern const char default_sort_order[];
 extern regex_t ignore_callees_regex;
 extern int have_ignore_callees;
 extern int sort__need_collapse;
+extern int sort__has_dso;
 extern int sort__has_parent;
 extern int sort__has_sym;
 extern int sort__has_socket;