diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-04-08 17:17:10 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-04-10 10:45:37 -0300 |
| commit | f16552393191f0e0801d8640f2030fe2103912b9 (patch) | |
| tree | bbff79b51c76f973c1b14845f9a24c14beb6fb54 | |
| parent | e0eb84cd518084582c0d1db5d904f31b16902fdc (diff) | |
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>
| -rw-r--r-- | tools/perf/ui/Build | 1 | ||||
| -rw-r--r-- | tools/perf/ui/keysyms.c | 44 | ||||
| -rw-r--r-- | tools/perf/ui/keysyms.h | 2 |
3 files changed, 47 insertions, 0 deletions
diff --git a/tools/perf/ui/Build b/tools/perf/ui/Build index d2ecd9290600..6005f813c9e3 100644 --- a/tools/perf/ui/Build +++ b/tools/perf/ui/Build @@ -8,5 +8,6 @@ perf-ui-y += stdio/hist.o CFLAGS_setup.o += -DLIBDIR="BUILD_STR($(LIBDIR))" perf-ui-$(CONFIG_SLANG) += browser.o +perf-ui-$(CONFIG_SLANG) += keysyms.o perf-ui-$(CONFIG_SLANG) += browsers/ perf-ui-$(CONFIG_SLANG) += tui/ diff --git a/tools/perf/ui/keysyms.c b/tools/perf/ui/keysyms.c new file mode 100644 index 000000000000..b64564b07f2f --- /dev/null +++ b/tools/perf/ui/keysyms.c @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#include "keysyms.h" +#include <linux/ctype.h> +#include <linux/kernel.h> + +const char *key_name(int key, char *bf, size_t size) +{ + if (isprint(key)) { + scnprintf(bf, size, "%c", key); + } else if (key < 32) { + scnprintf(bf, size, "Ctrl+%c", key + '@'); + } else { + const char *name = NULL; + + switch (key) { + case K_DOWN: name = "Down"; break; + case K_END: name = "End"; break; + case K_ENTER: name = "Enter"; break; + case K_ESC: name = "ESC"; break; + case K_F1: name = "F1"; break; + case K_HOME: name = "Home"; break; + case K_LEFT: name = "Left"; break; + case K_PGDN: name = "PgDown"; break; + case K_PGUP: name = "PgUp"; break; + case K_RIGHT: name = "Right"; break; + case K_TAB: name = "Tab"; break; + case K_UNTAB: name = "Untab"; break; + case K_UP: name = "Up"; break; + case K_BKSPC: name = "Backspace"; break; + case K_DEL: name = "Del"; break; + default: + if (key >= SL_KEY_F(1) && key <= SL_KEY_F(63)) + scnprintf(bf, size, "F%d", key - SL_KEY_F(0)); + else + scnprintf(bf, size, "Unknown (%d)", key); + } + + if (name) + scnprintf(bf, size, "%s", name); + } + + return bf; +} diff --git a/tools/perf/ui/keysyms.h b/tools/perf/ui/keysyms.h index 04cc4e5c031f..969060edc362 100644 --- a/tools/perf/ui/keysyms.h +++ b/tools/perf/ui/keysyms.h @@ -27,4 +27,6 @@ #define K_SWITCH_INPUT_DATA -4 #define K_RELOAD -5 +const char *key_name(int key, char *bf, size_t size); + #endif /* _PERF_KEYSYMS_H_ */ |