perf report: Use hierarchy hpp list on gtk

Now hpp formats are linked using perf_hpp_list_node when hierarchy is
enabled.  Like in stdio, use this info to print entries with multiple
sort keys in a single hierarchy properly.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1457361308-514-8-git-send-email-namhyung@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

tools/perf/ui/gtk/hists.c

@@ -407,7 +407,9 @@ static void perf_gtk__add_hierarchy_entries(struct hists *hists,
 	struct rb_node *node;
 	struct hist_entry *he;
 	struct perf_hpp_fmt *fmt;
+	struct perf_hpp_list_node *fmt_node;
 	u64 total = hists__total_period(hists);
+	int size;
 
 	for (node = rb_first(root); node; node = rb_next(node)) {
 		GtkTreeIter iter;
@@ -425,11 +427,11 @@ static void perf_gtk__add_hierarchy_entries(struct hists *hists,
 		gtk_tree_store_append(store, &iter, parent);
 
 		col_idx = 0;
-		hists__for_each_format(hists, fmt) {
-			if (perf_hpp__is_sort_entry(fmt) ||
-			    perf_hpp__is_dynamic_entry(fmt))
-				break;
 
+		/* the first hpp_list_node is for overhead columns */
+		fmt_node = list_first_entry(&hists->hpp_formats,
+					    struct perf_hpp_list_node, list);
+		perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
 			if (fmt->color)
 				fmt->color(fmt, hpp, he);
 			else
@@ -439,6 +441,7 @@ static void perf_gtk__add_hierarchy_entries(struct hists *hists,
 		}
 
 		bf = hpp->buf;
+		size = hpp->size;
 		perf_hpp_list__for_each_format(he->hpp_list, fmt) {
 			int ret;
 
@@ -451,9 +454,12 @@ static void perf_gtk__add_hierarchy_entries(struct hists *hists,
 			advance_hpp(hpp, ret + 2);
 		}
 
-		gtk_tree_store_set(store, &iter, col_idx, rtrim(bf), -1);
+		gtk_tree_store_set(store, &iter, col_idx, ltrim(rtrim(bf)), -1);
 
 		if (!he->leaf) {
+			hpp->buf = bf;
+			hpp->size = size;
+
 			perf_gtk__add_hierarchy_entries(hists, &he->hroot_out,
 							store, &iter, hpp,
 							min_pcnt);
@@ -486,6 +492,7 @@ static void perf_gtk__show_hierarchy(GtkWidget *window, struct hists *hists,
 				     float min_pcnt)
 {
 	struct perf_hpp_fmt *fmt;
+	struct perf_hpp_list_node *fmt_node;
 	GType col_types[MAX_COLUMNS];
 	GtkCellRenderer *renderer;
 	GtkTreeStore *store;
@@ -494,7 +501,7 @@ static void perf_gtk__show_hierarchy(GtkWidget *window, struct hists *hists,
 	int nr_cols = 0;
 	char s[512];
 	char buf[512];
-	bool first = true;
+	bool first_node, first_col;
 	struct perf_hpp hpp = {
 		.buf		= s,
 		.size		= sizeof(s),
@@ -514,11 +521,11 @@ static void perf_gtk__show_hierarchy(GtkWidget *window, struct hists *hists,
 	renderer = gtk_cell_renderer_text_new();
 
 	col_idx = 0;
-	hists__for_each_format(hists, fmt) {
-		if (perf_hpp__is_sort_entry(fmt) ||
-		    perf_hpp__is_dynamic_entry(fmt))
-			break;
 
+	/* the first hpp_list_node is for overhead columns */
+	fmt_node = list_first_entry(&hists->hpp_formats,
+				    struct perf_hpp_list_node, list);
+	perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
 		gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
 							    -1, fmt->name,
 							    renderer, "markup",
@@ -527,20 +534,24 @@ static void perf_gtk__show_hierarchy(GtkWidget *window, struct hists *hists,
 
 	/* construct merged column header since sort keys share single column */
 	buf[0] = '\0';
-	hists__for_each_format(hists ,fmt) {
-		if (!perf_hpp__is_sort_entry(fmt) &&
-		    !perf_hpp__is_dynamic_entry(fmt))
-			continue;
-		if (perf_hpp__should_skip(fmt, hists))
-			continue;
-
-		if (first)
-			first = false;
-		else
+	first_node = true;
+	list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
+		if (!first_node)
 			strcat(buf, " / ");
+		first_node = false;
 
-		fmt->header(fmt, &hpp, hists_to_evsel(hists));
-		strcat(buf, rtrim(hpp.buf));
+		first_col = true;
+		perf_hpp_list__for_each_format(&fmt_node->hpp ,fmt) {
+			if (perf_hpp__should_skip(fmt, hists))
+				continue;
+
+			if (!first_col)
+				strcat(buf, "+");
+			first_col = false;
+
+			fmt->header(fmt, &hpp, hists_to_evsel(hists));
+			strcat(buf, ltrim(rtrim(hpp.buf)));
+		}
 	}
 
 	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),