perf ui/gtk: Implement basic GTK2 annotation browser

Basic implementation of perf annotate on GTK2.  Currently only
shows first symbol.  Add a new --gtk option to use it.

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: Namhyung Kim <namhyung.kim@lge.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/1360227734-375-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 186 insertions, 1 deletions

diff --git a/tools/perf/ui/gtk/annotate.c b/tools/perf/ui/gtk/annotate.c
new file mode 100644
index 000000000000..19d84fa327af
--- /dev/null
+++ b/tools/perf/ui/gtk/annotate.c
@@ -0,0 +1,185 @@
+#include "gtk.h"
+#include "util/debug.h"
+#include "util/annotate.h"
+#include "ui/helpline.h"
+
+
+enum {
+        ANN_COL__PERCENT,
+        ANN_COL__OFFSET,
+        ANN_COL__LINE,
+
+        MAX_ANN_COLS
+};
+
+static const char *const col_names[] = {
+        "Overhead",
+        "Offset",
+        "Line"
+};
+
+static int perf_gtk__get_percent(char *buf, size_t size, struct symbol *sym,
+                                 struct disasm_line *dl, int evidx)
+{
+        struct sym_hist *symhist;
+        double percent = 0.0;
+        const char *markup;
+        int ret = 0;
+
+        strcpy(buf, "");
+
+        if (dl->offset == (s64) -1)
+                return 0;
+
+        symhist = annotation__histogram(symbol__annotation(sym), evidx);
+        if (!symhist->addr[dl->offset])
+                return 0;
+
+        percent = 100.0 * symhist->addr[dl->offset] / symhist->sum;
+
+        markup = perf_gtk__get_percent_color(percent);
+        if (markup)
+                ret += scnprintf(buf, size, "%s", markup);
+        ret += scnprintf(buf + ret, size - ret, "%6.2f%%", percent);
+        if (markup)
+                ret += scnprintf(buf + ret, size - ret, "</span>");
+
+        return ret;
+}
+
+static int perf_gtk__get_offset(char *buf, size_t size, struct symbol *sym,
+                                struct map *map, struct disasm_line *dl)
+{
+        u64 start = map__rip_2objdump(map, sym->start);
+
+        strcpy(buf, "");
+
+        if (dl->offset == (s64) -1)
+                return 0;
+
+        return scnprintf(buf, size, "%"PRIx64, start + dl->offset);
+}
+
+static int perf_gtk__annotate_symbol(GtkWidget *window, struct symbol *sym,
+                                struct map *map, int evidx,
+                                struct hist_browser_timer *hbt __maybe_unused)
+{
+        struct disasm_line *pos, *n;
+        struct annotation *notes;
+        GType col_types[MAX_ANN_COLS];
+        GtkCellRenderer *renderer;
+        GtkListStore *store;
+        GtkWidget *view;
+        int i;
+        char s[512];
+
+        if (map->dso->annotate_warned)
+                return -1;
+
+        if (symbol__annotate(sym, map, 0) < 0) {
+                ui__error("%s", ui_helpline__current);
+                return -1;
+        }
+
+        notes = symbol__annotation(sym);
+
+        for (i = 0; i < MAX_ANN_COLS; i++) {
+                col_types[i] = G_TYPE_STRING;
+        }
+        store = gtk_list_store_newv(MAX_ANN_COLS, col_types);
+
+        view = gtk_tree_view_new();
+        renderer = gtk_cell_renderer_text_new();
+
+        for (i = 0; i < MAX_ANN_COLS; i++) {
+                gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
+                                        -1, col_names[i], renderer,
+                                        i == ANN_COL__PERCENT ? "markup" : "text",
+                                        i, NULL);
+        }
+
+        gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(store));
+        g_object_unref(GTK_TREE_MODEL(store));
+
+        list_for_each_entry(pos, &notes->src->source, node) {
+                GtkTreeIter iter;
+
+                gtk_list_store_append(store, &iter);
+
+                if (perf_gtk__get_percent(s, sizeof(s), sym, pos, evidx))
+                        gtk_list_store_set(store, &iter, ANN_COL__PERCENT, s, -1);
+                if (perf_gtk__get_offset(s, sizeof(s), sym, map, pos))
+                        gtk_list_store_set(store, &iter, ANN_COL__OFFSET, s, -1);
+                gtk_list_store_set(store, &iter, ANN_COL__LINE, pos->line, -1);
+        }
+
+        gtk_container_add(GTK_CONTAINER(window), view);
+
+        list_for_each_entry_safe(pos, n, &notes->src->source, node) {
+                list_del(&pos->node);
+                disasm_line__free(pos);
+        }
+
+        return 0;
+}
+
+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 *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);
+
+        window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+        gtk_window_set_title(GTK_WINDOW(window), "perf annotate");
+
+        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();
+        scrolled_window = gtk_scrolled_window_new(NULL, NULL);
+        tab_label = gtk_label_new(sym->name);
+
+        gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
+                                       GTK_POLICY_AUTOMATIC,
+                                       GTK_POLICY_AUTOMATIC);
+
+        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);
+
+        gtk_container_add(GTK_CONTAINER(window), vbox);
+
+        perf_gtk__annotate_symbol(scrolled_window, sym, map, evidx, hbt);
+
+        gtk_widget_show_all(window);
+
+        perf_gtk__resize_window(window);
+        gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
+
+        gtk_main();
+
+        perf_gtk__deactivate_context(&pgctx);
+        return 0;
+}
diff --git a/tools/perf/ui/setup.c b/tools/perf/ui/setup.c
index 166f13df3134..ae6a789cb0f6 100644
--- a/tools/perf/ui/setup.c
+++ b/tools/perf/ui/setup.c
@@ -8,7 +8,7 @@ pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
 
 void setup_browser(bool fallback_to_pager)
 {
-        if (!isatty(1) || dump_trace)
+        if (use_browser < 2 && (!isatty(1) || dump_trace))
                 use_browser = 0;
 
         /* default to TUI */