[PATCH] perf hists browser: Add 'm' key for context menu display

[Namhyung Kim <namhyung@kernel.org>]

With horizontal scrolling, the left/right arrow keys are used to
scroll columns and ENTER/ESC keys are used to enter/exit menu.
However if callchain is recorded, the ENTER key is used to toggle
callchain expansion so there's no way to display menu.  Use 'm' key to
display the menu for this case.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/ui/browsers/hists.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 9b7346a881cf..c8ec9bdb9c04 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1769,6 +1769,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 	"E             Expand all callchains\n"				\
 	"F             Toggle percentage of filtered entries\n"		\
 	"H             Display column headers\n"			\
+	"m             Display context menu\n"				\
 	"S             Zoom into current Processor Socket\n"		\
 
 	/* help messages are sorted by lexical order of the hotkey */
@@ -1934,6 +1935,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 			continue;
 		case K_ENTER:
 		case K_RIGHT:
+		case 'm':
 			/* menu */
 			break;
 		case K_ESC:
-- 
2.6.1