1 files changed, 19 insertions, 37 deletions

diff --git a/tools/perf/ui/helpline.c b/tools/perf/ui/helpline.c
index 2f950c2641c8..a49bcf3c190b 100644
--- a/tools/perf/ui/helpline.c
+++ b/tools/perf/ui/helpline.c
@@ -5,23 +5,32 @@
 #include "../debug.h"
 #include "helpline.h"
 #include "ui.h"
-#include "libslang.h"
 
-void ui_helpline__pop(void)
+char ui_helpline__current[512];
+
+static void nop_helpline__pop(void)
 {
 }
 
-char ui_helpline__current[512];
+static void nop_helpline__push(const char *msg __maybe_unused)
+{
+}
 
-void ui_helpline__push(const char *msg)
+static struct ui_helpline default_helpline_fns = {
+        .pop    = nop_helpline__pop,
+        .push   = nop_helpline__push,
+};
+
+struct ui_helpline *helpline_fns = &default_helpline_fns;
+
+void ui_helpline__pop(void)
 {
-        const size_t sz = sizeof(ui_helpline__current);
+        helpline_fns->pop();
+}
 
-        SLsmg_gotorc(SLtt_Screen_Rows - 1, 0);
-        SLsmg_set_color(0);
-        SLsmg_write_nstring((char *)msg, SLtt_Screen_Cols);
-        SLsmg_refresh();
-        strncpy(ui_helpline__current, msg, sz)[sz - 1] = '\0';
+void ui_helpline__push(const char *msg)
+{
+        helpline_fns->push(msg);
 }
 
 void ui_helpline__vpush(const char *fmt, va_list ap)
@@ -50,30 +59,3 @@ void ui_helpline__puts(const char *msg)
         ui_helpline__pop();
         ui_helpline__push(msg);
 }
-
-void ui_helpline__init(void)
-{
-        ui_helpline__puts(" ");
-}
-
-char ui_helpline__last_msg[1024];
-
-int ui_helpline__show_help(const char *format, va_list ap)
-{
-        int ret;
-        static int backlog;
-
-        pthread_mutex_lock(&ui__lock);
-        ret = vscnprintf(ui_helpline__last_msg + backlog,
-                        sizeof(ui_helpline__last_msg) - backlog, format, ap);
-        backlog += ret;
-
-        if (ui_helpline__last_msg[backlog - 1] == '\n') {
-                ui_helpline__puts(ui_helpline__last_msg);
-                SLsmg_refresh();
-                backlog = 0;
-        }
-        pthread_mutex_unlock(&ui__lock);
-
-        return ret;
-}