tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
perf ui browser: Add key_name() helper
We'll use it to show unhandled keys in the various TUI browsers.
Suggested-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/Z_TYux5fUg2pW-pF@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+47
+1
tools/perf/ui/Build
+1
tools/perf/ui/Build
+44
tools/perf/ui/keysyms.c
+44
tools/perf/ui/keysyms.c
···
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/* SPDX-License-Identifier: GPL-2.0 */
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#include "keysyms.h"
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#include <linux/ctype.h>
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#include <linux/kernel.h>
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const char *key_name(int key, char *bf, size_t size)
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{
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if (isprint(key)) {
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scnprintf(bf, size, "%c", key);
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} else if (key < 32) {
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scnprintf(bf, size, "Ctrl+%c", key + '@');
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} else {
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const char *name = NULL;
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switch (key) {
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case K_DOWN: name = "Down"; break;
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case K_END: name = "End"; break;
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case K_ENTER: name = "Enter"; break;
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case K_ESC: name = "ESC"; break;
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case K_F1: name = "F1"; break;
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case K_HOME: name = "Home"; break;
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case K_LEFT: name = "Left"; break;
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case K_PGDN: name = "PgDown"; break;
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case K_PGUP: name = "PgUp"; break;
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case K_RIGHT: name = "Right"; break;
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case K_TAB: name = "Tab"; break;
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case K_UNTAB: name = "Untab"; break;
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case K_UP: name = "Up"; break;
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case K_BKSPC: name = "Backspace"; break;
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case K_DEL: name = "Del"; break;
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default:
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if (key >= SL_KEY_F(1) && key <= SL_KEY_F(63))
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scnprintf(bf, size, "F%d", key - SL_KEY_F(0));
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else
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scnprintf(bf, size, "Unknown (%d)", key);
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}
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if (name)
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scnprintf(bf, size, "%s", name);
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}
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return bf;
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}