linux-kernel - [PATCH 3/3] perf annotate browser: Add '<' and '>' keys for navigation

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Message-ID: <20230511062725.514752-3-namhyung@kernel.org>
Date:   Wed, 10 May 2023 23:27:25 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-perf-users@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 3/3] perf annotate browser: Add '<' and '>' keys for navigation

The hists__find_annotations() allow to move to next or previous symbols
for annotation using the arrow keys.  But TUI annotate_browser__run()
uses the RIGHT key as ENTER to handle jump/call instructions.  That
makes the navigation to the next function impossible.

I'd like to change it back to move the next symbol but I'm afraid if
some users get confused.  So I added a new pair of keys to handle that.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/builtin-annotate.c     | 4 +++-
 tools/perf/ui/browsers/annotate.c | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 63cdf6ea6f6d..425a7e2fd6fb 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -342,7 +342,7 @@ static void hists__find_annotations(struct hists *hists,
 		notes = symbol__annotation(he->ms.sym);
 		if (notes->src == NULL) {
 find_next:
-			if (key == K_LEFT)
+			if (key == K_LEFT || key == '<')
 				nd = rb_prev(nd);
 			else
 				nd = rb_next(nd);
@@ -378,9 +378,11 @@ static void hists__find_annotations(struct hists *hists,
 					return;
 				/* fall through */
 			case K_RIGHT:
+			case '>':
 				next = rb_next(nd);
 				break;
 			case K_LEFT:
+			case '<':
 				next = rb_prev(nd);
 				break;
 			default:
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 12c3ce530e42..70bad42b807b 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -781,9 +781,9 @@ static int annotate_browser__run(struct annotate_browser *browser,
 			ui_browser__help_window(&browser->b,
 		"UP/DOWN/PGUP\n"
 		"PGDN/SPACE    Navigate\n"
+		"</>           Move to prev/next symbol\n"
 		"q/ESC/CTRL+C  Exit\n\n"
 		"ENTER         Go to target\n"
-		"ESC           Exit\n"
 		"H             Go to hottest instruction\n"
 		"TAB/shift+TAB Cycle thru hottest instructions\n"
 		"j             Toggle showing jump to target arrows\n"
@@ -913,6 +913,8 @@ static int annotate_browser__run(struct annotate_browser *browser,
 			annotation__toggle_full_addr(notes, ms);
 			continue;
 		case K_LEFT:
+		case '<':
+		case '>':
 		case K_ESC:
 		case 'q':
 		case CTRL('c'):
-- 
2.40.1.521.gf1e218fcd8-goog