linux-kernel - [PATCH 49/52] perf c2c report: Add help windows

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Date:   Thu, 20 Oct 2016 12:04:33 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel@...r.kernel.org, Linux Weekly News <lwn@....net>,
        Jiri Olsa <jolsa@...nel.org>, Andi Kleen <andi@...stfloor.org>,
        David Ahern <dsahern@...il.com>,
        Don Zickus <dzickus@...hat.com>, Joe Mario <jmario@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 49/52] perf c2c report: Add help windows

From: Jiri Olsa <jolsa@...nel.org>

Adding help windows to display key/action mappings
for both browsers.

Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Andi Kleen <andi@...stfloor.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Don Zickus <dzickus@...hat.com>
Cc: Joe Mario <jmario@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/n/tip-zni4apopx6a9eyxsosm1ebh1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-c2c.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 27eef205a774..3fc18264d4d1 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2181,6 +2181,11 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
 	struct c2c_cacheline_browser *cl_browser;
 	struct hist_browser *browser;
 	int key = -1;
+	const char help[] =
+	" ENTER         Togle callchains (if present) \n"
+	" n             Togle Node details info \n"
+	" s             Togle full lenght of symbol and source line columns \n"
+	" q             Return back to cacheline list \n";
 
 	/* Display compact version first. */
 	c2c.symbol_full = false;
@@ -2201,7 +2206,7 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
 	c2c_browser__update_nr_entries(browser);
 
 	while (1) {
-		key = hist_browser__run(browser, "help");
+		key = hist_browser__run(browser, "? - help");
 
 		switch (key) {
 		case 's':
@@ -2213,6 +2218,9 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
 			break;
 		case 'q':
 			goto out;
+		case '?':
+			ui_browser__help_window(&browser->b, help);
+			break;
 		default:
 			break;
 		}
@@ -2251,6 +2259,10 @@ static int perf_c2c__hists_browse(struct hists *hists)
 {
 	struct hist_browser *browser;
 	int key = -1;
+	const char help[] =
+	" d             Display cacheline details \n"
+	" ENTER         Togle callchains (if present) \n"
+	" q             Quit \n";
 
 	browser = perf_c2c_browser__new(hists);
 	if (browser == NULL)
@@ -2263,7 +2275,7 @@ static int perf_c2c__hists_browse(struct hists *hists)
 	c2c_browser__update_nr_entries(browser);
 
 	while (1) {
-		key = hist_browser__run(browser, "help");
+		key = hist_browser__run(browser, "? - help");
 
 		switch (key) {
 		case 'q':
@@ -2271,6 +2283,9 @@ static int perf_c2c__hists_browse(struct hists *hists)
 		case 'd':
 			perf_c2c__browse_cacheline(browser->he_selection);
 			break;
+		case '?':
+			ui_browser__help_window(&browser->b, help);
+			break;
 		default:
 			break;
 		}
-- 
2.7.4