perf gtk/annotate: Support multiple event annotation

Show multiple annotation result for each evsel.  Each result represents
the most frquently sampled symbol/function for the evsel and it will be
shown in a tab window.

For this add a reference to main container (notebook) to the pgctx.  At
the first call to annotate browser, hist_entry__find_annotations() will
setup a new browser, and next calls will add new tabs to the browser.
But it requires final perf_gtk__show_annotations() to start processing
GUI events.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1360227734-375-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 56 insertions, 27 deletions

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 9d758c9611a5..68e3a16abd3d 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -227,6 +227,10 @@ static int __cmd_annotate(struct perf_annotate *ann)
                 ui__error("The %s file has no samples!\n", session->filename);
                 goto out_delete;
         }
+
+        if (use_browser == 2)
+                perf_gtk__show_annotations();
+
 out_delete:
         /*
          * Speed up the exit process, for large files this can
diff --git a/tools/perf/ui/gtk/annotate.c b/tools/perf/ui/gtk/annotate.c
index 19d84fa327af..1ce89f2558fa 100644
--- a/tools/perf/ui/gtk/annotate.c
+++ b/tools/perf/ui/gtk/annotate.c
@@ -126,31 +126,52 @@ static int perf_gtk__annotate_symbol(GtkWidget *window, struct symbol *sym,
 int symbol__gtk_annotate(struct symbol *sym, struct map *map, int evidx,
                          struct hist_browser_timer *hbt)
 {
-        GtkWidget *vbox;
-        GtkWidget *notebook;
-        GtkWidget *infobar;
-        GtkWidget *statbar;
         GtkWidget *window;
+        GtkWidget *notebook;
         GtkWidget *scrolled_window;
         GtkWidget *tab_label;
 
-        signal(SIGSEGV, perf_gtk__signal);
-        signal(SIGFPE,  perf_gtk__signal);
-        signal(SIGINT,  perf_gtk__signal);
-        signal(SIGQUIT, perf_gtk__signal);
-        signal(SIGTERM, perf_gtk__signal);
+        if (perf_gtk__is_active_context(pgctx)) {
+                window = pgctx->main_window;
+                notebook = pgctx->notebook;
+        } else {
+                GtkWidget *vbox;
+                GtkWidget *infobar;
+                GtkWidget *statbar;
 
-        window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
-        gtk_window_set_title(GTK_WINDOW(window), "perf annotate");
+                signal(SIGSEGV, perf_gtk__signal);
+                signal(SIGFPE,  perf_gtk__signal);
+                signal(SIGINT,  perf_gtk__signal);
+                signal(SIGQUIT, perf_gtk__signal);
+                signal(SIGTERM, perf_gtk__signal);
 
-        g_signal_connect(window, "delete_event", gtk_main_quit, NULL);
+                window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+                gtk_window_set_title(GTK_WINDOW(window), "perf annotate");
 
-        pgctx = perf_gtk__activate_context(window);
-        if (!pgctx)
-                return -1;
+                g_signal_connect(window, "delete_event", gtk_main_quit, NULL);
+
+                pgctx = perf_gtk__activate_context(window);
+                if (!pgctx)
+                        return -1;
+
+                vbox = gtk_vbox_new(FALSE, 0);
+                notebook = gtk_notebook_new();
+                pgctx->notebook = notebook;
+
+                gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);
+
+                infobar = perf_gtk__setup_info_bar();
+                if (infobar) {
+                        gtk_box_pack_start(GTK_BOX(vbox), infobar,
+                                           FALSE, FALSE, 0);
+                }
+
+                statbar = perf_gtk__setup_statusbar();
+                gtk_box_pack_start(GTK_BOX(vbox), statbar, FALSE, FALSE, 0);
+
+                gtk_container_add(GTK_CONTAINER(window), vbox);
+        }
 
-        vbox = gtk_vbox_new(FALSE, 0);
-        notebook = gtk_notebook_new();
         scrolled_window = gtk_scrolled_window_new(NULL, NULL);
         tab_label = gtk_label_new(sym->name);
 
@@ -160,19 +181,19 @@ int symbol__gtk_annotate(struct symbol *sym, struct map *map, int evidx,
 
         gtk_notebook_append_page(GTK_NOTEBOOK(notebook), scrolled_window,
                                  tab_label);
-        gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);
-
-        infobar = perf_gtk__setup_info_bar();
-        if (infobar)
-                gtk_box_pack_start(GTK_BOX(vbox), infobar, FALSE, FALSE, 0);
 
-        statbar = perf_gtk__setup_statusbar();
-        gtk_box_pack_start(GTK_BOX(vbox), statbar, FALSE, FALSE, 0);
+        perf_gtk__annotate_symbol(scrolled_window, sym, map, evidx, hbt);
+        return 0;
+}
 
-        gtk_container_add(GTK_CONTAINER(window), vbox);
+void perf_gtk__show_annotations(void)
+{
+        GtkWidget *window;
 
-        perf_gtk__annotate_symbol(scrolled_window, sym, map, evidx, hbt);
+        if (!perf_gtk__is_active_context(pgctx))
+                return;
 
+        window = pgctx->main_window;
         gtk_widget_show_all(window);
 
         perf_gtk__resize_window(window);
@@ -181,5 +202,4 @@ int symbol__gtk_annotate(struct symbol *sym, struct map *map, int evidx,
         gtk_main();
 
         perf_gtk__deactivate_context(&pgctx);
-        return 0;
 }
diff --git a/tools/perf/ui/gtk/gtk.h b/tools/perf/ui/gtk/gtk.h
index 5d3693754828..3d96785ef155 100644
--- a/tools/perf/ui/gtk/gtk.h
+++ b/tools/perf/ui/gtk/gtk.h
@@ -10,6 +10,7 @@
 
 struct perf_gtk_context {
         GtkWidget *main_window;
+        GtkWidget *notebook;
 
 #ifdef HAVE_GTK_INFO_BAR
         GtkWidget *info_bar;
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index a8ccbda4aeb7..c422440fe611 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -164,6 +164,8 @@ static inline int hist_entry__gtk_annotate(struct hist_entry *he, int evidx,
 {
         return symbol__gtk_annotate(he->ms.sym, he->ms.map, evidx, hbt);
 }
+
+void perf_gtk__show_annotations(void);
 #else
 static inline int hist_entry__gtk_annotate(struct hist_entry *he __maybe_unused,
                                            int evidx __maybe_unused,
@@ -172,6 +174,8 @@ static inline int hist_entry__gtk_annotate(struct hist_entry *he __maybe_unused,
 {
         return 0;
 }
+
+static inline void perf_gtk__show_annotations(void) {}
 #endif
 
 extern const char       *disassembler_style;