tools/perf/ui/gtk/hists.c - kernel/msm-4.19 - Gitiles

 #include "../evlist.h"
 #include "../cache.h"
 #include "../evsel.h"
 #include "../sort.h"
 #include "../hist.h"
 #include "../helpline.h"
 #include "gtk.h"

 #define MAX_COLUMNS			32

 static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...)
 {
 	int ret = 0;
 	int len;
 	va_list args;
 	double percent;
 	const char *markup;
 	char *buf = hpp->buf;
 	size_t size = hpp->size;

 	va_start(args, fmt);
 	len = va_arg(args, int);
 	percent = va_arg(args, double);
 	va_end(args);

 	markup = perf_gtk__get_percent_color(percent);
 	if (markup)
 		ret += scnprintf(buf, size, markup);

 	ret += scnprintf(buf + ret, size - ret, fmt, len, percent);

 	if (markup)
 		ret += scnprintf(buf + ret, size - ret, "</span>");

 	return ret;
 }

 #define __HPP_COLOR_PERCENT_FN(_type, _field)					\
 static u64 he_get_##_field(struct hist_entry *he)				\
 {										\
 	return he->stat._field;							\
 }										\
 										\
 static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt,		\
 				       struct perf_hpp *hpp,			\
 				       struct hist_entry *he)			\
 {										\
 	return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",		\
 			__percent_color_snprintf, true);			\
 }

 #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field)				\
 static u64 he_get_acc_##_field(struct hist_entry *he)				\
 {										\
 	return he->stat_acc->_field;						\
 }										\
 										\
 static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,	\
 				       struct perf_hpp *hpp,			\
 				       struct hist_entry *he)			\
 {										\
 	return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%", 	\
 			    __percent_color_snprintf, true);			\
 }

 __HPP_COLOR_PERCENT_FN(overhead, period)
 __HPP_COLOR_PERCENT_FN(overhead_sys, period_sys)
 __HPP_COLOR_PERCENT_FN(overhead_us, period_us)
 __HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys)
 __HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us)
 __HPP_COLOR_ACC_PERCENT_FN(overhead_acc, period)

 #undef __HPP_COLOR_PERCENT_FN


 void perf_gtk__init_hpp(void)
 {
 	perf_hpp__format[PERF_HPP__OVERHEAD].color =
 				perf_gtk__hpp_color_overhead;
 	perf_hpp__format[PERF_HPP__OVERHEAD_SYS].color =
 				perf_gtk__hpp_color_overhead_sys;
 	perf_hpp__format[PERF_HPP__OVERHEAD_US].color =
 				perf_gtk__hpp_color_overhead_us;
 	perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].color =
 				perf_gtk__hpp_color_overhead_guest_sys;
 	perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].color =
 				perf_gtk__hpp_color_overhead_guest_us;
 	perf_hpp__format[PERF_HPP__OVERHEAD_ACC].color =
 				perf_gtk__hpp_color_overhead_acc;
 }

 static void perf_gtk__add_callchain_flat(struct rb_root *root, GtkTreeStore *store,
 					 GtkTreeIter *parent, int col, u64 total)
 {
 	struct rb_node *nd;
 	bool has_single_node = (rb_first(root) == rb_last(root));

 	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
 		struct callchain_node *node;
 		struct callchain_list *chain;
 		GtkTreeIter iter, new_parent;
 		bool need_new_parent;

 		node = rb_entry(nd, struct callchain_node, rb_node);

 		new_parent = *parent;
 		need_new_parent = !has_single_node;

 		callchain_node__make_parent_list(node);

 		list_for_each_entry(chain, &node->parent_val, list) {
 			char buf[128];

 			gtk_tree_store_append(store, &iter, &new_parent);

 			callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
 			gtk_tree_store_set(store, &iter, 0, buf, -1);

 			callchain_list__sym_name(chain, buf, sizeof(buf), false);
 			gtk_tree_store_set(store, &iter, col, buf, -1);

 			if (need_new_parent) {
 				/*
 				 * Only show the top-most symbol in a callchain
 				 * if it's not the only callchain.
 				 */
 				new_parent = iter;
 				need_new_parent = false;
 			}
 		}

 		list_for_each_entry(chain, &node->val, list) {
 			char buf[128];

 			gtk_tree_store_append(store, &iter, &new_parent);

 			callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
 			gtk_tree_store_set(store, &iter, 0, buf, -1);

 			callchain_list__sym_name(chain, buf, sizeof(buf), false);
 			gtk_tree_store_set(store, &iter, col, buf, -1);

 			if (need_new_parent) {
 				/*
 				 * Only show the top-most symbol in a callchain
 				 * if it's not the only callchain.
 				 */
 				new_parent = iter;
 				need_new_parent = false;
 			}
 		}
 	}
 }

 static void perf_gtk__add_callchain_folded(struct rb_root *root, GtkTreeStore *store,
 					   GtkTreeIter *parent, int col, u64 total)
 {
 	struct rb_node *nd;

 	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
 		struct callchain_node *node;
 		struct callchain_list *chain;
 		GtkTreeIter iter;
 		char buf[64];
 		char *str, *str_alloc = NULL;
 		bool first = true;

 		node = rb_entry(nd, struct callchain_node, rb_node);

 		callchain_node__make_parent_list(node);

 		list_for_each_entry(chain, &node->parent_val, list) {
 			char name[1024];

 			callchain_list__sym_name(chain, name, sizeof(name), false);

 			if (asprintf(&str, "%s%s%s",
 				     first ? "" : str_alloc,
 				     first ? "" : symbol_conf.field_sep ?: "; ",
 				     name) < 0)
 				return;

 			first = false;
 			free(str_alloc);
 			str_alloc = str;
 		}

 		list_for_each_entry(chain, &node->val, list) {
 			char name[1024];

 			callchain_list__sym_name(chain, name, sizeof(name), false);

 			if (asprintf(&str, "%s%s%s",
 				     first ? "" : str_alloc,
 				     first ? "" : symbol_conf.field_sep ?: "; ",
 				     name) < 0)
 				return;

 			first = false;
 			free(str_alloc);
 			str_alloc = str;
 		}

 		gtk_tree_store_append(store, &iter, parent);

 		callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
 		gtk_tree_store_set(store, &iter, 0, buf, -1);

 		gtk_tree_store_set(store, &iter, col, str, -1);

 		free(str_alloc);
 	}
 }

 static void perf_gtk__add_callchain_graph(struct rb_root *root, GtkTreeStore *store,
 					  GtkTreeIter *parent, int col, u64 total)
 {
 	struct rb_node *nd;
 	bool has_single_node = (rb_first(root) == rb_last(root));

 	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
 		struct callchain_node *node;
 		struct callchain_list *chain;
 		GtkTreeIter iter, new_parent;
 		bool need_new_parent;
 		u64 child_total;

 		node = rb_entry(nd, struct callchain_node, rb_node);

 		new_parent = *parent;
 		need_new_parent = !has_single_node && (node->val_nr > 1);

 		list_for_each_entry(chain, &node->val, list) {
 			char buf[128];

 			gtk_tree_store_append(store, &iter, &new_parent);

 			callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
 			gtk_tree_store_set(store, &iter, 0, buf, -1);

 			callchain_list__sym_name(chain, buf, sizeof(buf), false);
 			gtk_tree_store_set(store, &iter, col, buf, -1);

 			if (need_new_parent) {
 				/*
 				 * Only show the top-most symbol in a callchain
 				 * if it's not the only callchain.
 				 */
 				new_parent = iter;
 				need_new_parent = false;
 			}
 		}

 		if (callchain_param.mode == CHAIN_GRAPH_REL)
 			child_total = node->children_hit;
 		else
 			child_total = total;

 		/* Now 'iter' contains info of the last callchain_list */
 		perf_gtk__add_callchain_graph(&node->rb_root, store, &iter, col,
 					      child_total);
 	}
 }

 static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
 				    GtkTreeIter *parent, int col, u64 total)
 {
 	if (callchain_param.mode == CHAIN_FLAT)
 		perf_gtk__add_callchain_flat(root, store, parent, col, total);
 	else if (callchain_param.mode == CHAIN_FOLDED)
 		perf_gtk__add_callchain_folded(root, store, parent, col, total);
 	else
 		perf_gtk__add_callchain_graph(root, store, parent, col, total);
 }

 static void on_row_activated(GtkTreeView *view, GtkTreePath *path,
 			     GtkTreeViewColumn *col __maybe_unused,
 			     gpointer user_data __maybe_unused)
 {
 	bool expanded = gtk_tree_view_row_expanded(view, path);

 	if (expanded)
 		gtk_tree_view_collapse_row(view, path);
 	else
 		gtk_tree_view_expand_row(view, path, FALSE);
 }

 static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists,
 				 float min_pcnt)
 {
 	struct perf_hpp_fmt *fmt;
 	GType col_types[MAX_COLUMNS];
 	GtkCellRenderer *renderer;
 	GtkTreeStore *store;
 	struct rb_node *nd;
 	GtkWidget *view;
 	int col_idx;
 	int sym_col = -1;
 	int nr_cols;
 	char s[512];

 	struct perf_hpp hpp = {
 		.buf		= s,
 		.size		= sizeof(s),
 	};

 	nr_cols = 0;

 	perf_hpp__for_each_format(fmt)
 		col_types[nr_cols++] = G_TYPE_STRING;

 	store = gtk_tree_store_newv(nr_cols, col_types);

 	view = gtk_tree_view_new();

 	renderer = gtk_cell_renderer_text_new();

 	col_idx = 0;

 	perf_hpp__for_each_format(fmt) {
 		if (perf_hpp__should_skip(fmt, hists))
 			continue;

 		/*
 		 * XXX no way to determine where symcol column is..
 		 *     Just use last column for now.
 		 */
 		if (perf_hpp__is_sort_entry(fmt))
 			sym_col = col_idx;

 		gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
 							    -1, fmt->name,
 							    renderer, "markup",
 							    col_idx++, NULL);
 	}

 	for (col_idx = 0; col_idx < nr_cols; col_idx++) {
 		GtkTreeViewColumn *column;

 		column = gtk_tree_view_get_column(GTK_TREE_VIEW(view), col_idx);
 		gtk_tree_view_column_set_resizable(column, TRUE);

 		if (col_idx == sym_col) {
 			gtk_tree_view_set_expander_column(GTK_TREE_VIEW(view),
 							  column);
 		}
 	}

 	gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(store));

 	g_object_unref(GTK_TREE_MODEL(store));

 	for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
 		struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
 		GtkTreeIter iter;
 		u64 total = hists__total_period(h->hists);
 		float percent;

 		if (h->filtered)
 			continue;

 		percent = hist_entry__get_percent_limit(h);
 		if (percent < min_pcnt)
 			continue;

 		gtk_tree_store_append(store, &iter, NULL);

 		col_idx = 0;

 		perf_hpp__for_each_format(fmt) {
 			if (perf_hpp__should_skip(fmt, h->hists))
 				continue;

 			if (fmt->color)
 				fmt->color(fmt, &hpp, h);
 			else
 				fmt->entry(fmt, &hpp, h);

 			gtk_tree_store_set(store, &iter, col_idx++, s, -1);
 		}

 		if (symbol_conf.use_callchain && sort__has_sym) {
 			if (callchain_param.mode == CHAIN_GRAPH_REL)
 				total = symbol_conf.cumulate_callchain ?
 					h->stat_acc->period : h->stat.period;

 			perf_gtk__add_callchain(&h->sorted_chain, store, &iter,
 						sym_col, total);
 		}
 	}

 	gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(view), TRUE);

 	g_signal_connect(view, "row-activated",
 			 G_CALLBACK(on_row_activated), NULL);
 	gtk_container_add(GTK_CONTAINER(window), view);
 }

 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
 				  const char *help,
 				  struct hist_browser_timer *hbt __maybe_unused,
 				  float min_pcnt)
 {
 	struct perf_evsel *pos;
 	GtkWidget *vbox;
 	GtkWidget *notebook;
 	GtkWidget *info_bar;
 	GtkWidget *statbar;
 	GtkWidget *window;

 	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 report");

 	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();

 	gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);

 	info_bar = perf_gtk__setup_info_bar();
 	if (info_bar)
 		gtk_box_pack_start(GTK_BOX(vbox), info_bar, 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);

 	evlist__for_each(evlist, pos) {
 		struct hists *hists = evsel__hists(pos);
 		const char *evname = perf_evsel__name(pos);
 		GtkWidget *scrolled_window;
 		GtkWidget *tab_label;
 		char buf[512];
 		size_t size = sizeof(buf);

 		if (symbol_conf.event_group) {
 			if (!perf_evsel__is_group_leader(pos))
 				continue;

 			if (pos->nr_members > 1) {
 				perf_evsel__group_desc(pos, buf, size);
 				evname = buf;
 			}
 		}

 		scrolled_window = gtk_scrolled_window_new(NULL, NULL);

 		gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
 							GTK_POLICY_AUTOMATIC,
 							GTK_POLICY_AUTOMATIC);

 		perf_gtk__show_hists(scrolled_window, hists, min_pcnt);

 		tab_label = gtk_label_new(evname);

 		gtk_notebook_append_page(GTK_NOTEBOOK(notebook), scrolled_window, tab_label);
 	}

 	gtk_widget_show_all(window);

 	perf_gtk__resize_window(window);

 	gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);

 	ui_helpline__push(help);

 	gtk_main();

 	perf_gtk__deactivate_context(&pgctx);

 	return 0;
 }
	#include "../evlist.h"
	#include "../cache.h"
	#include "../evsel.h"
	#include "../sort.h"
	#include "../hist.h"
	#include "../helpline.h"
	#include "gtk.h"

	#define MAX_COLUMNS 32

	static int __percent_color_snprintf(struct perf_hpp hpp, const char fmt, ...)
	{
	int ret = 0;
	int len;
	va_list args;
	double percent;
	const char *markup;
	char *buf = hpp->buf;
	size_t size = hpp->size;

	va_start(args, fmt);
	len = va_arg(args, int);
	percent = va_arg(args, double);
	va_end(args);

	markup = perf_gtk__get_percent_color(percent);
	if (markup)
	ret += scnprintf(buf, size, markup);

	ret += scnprintf(buf + ret, size - ret, fmt, len, percent);

	if (markup)
	ret += scnprintf(buf + ret, size - ret, "</span>");

	return ret;
	}

	#define __HPP_COLOR_PERCENT_FN(_type, _field) \
	static u64 he_get_##_field(struct hist_entry *he) \
	{ \
	return he->stat._field; \
	} \
	\
	static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt, \
	struct perf_hpp *hpp, \
	struct hist_entry *he) \
	{ \
	return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%", \
	__percent_color_snprintf, true); \
	}

	#define __HPP_COLOR_ACC_PERCENT_FN(_type, _field) \
	static u64 he_get_acc_##_field(struct hist_entry *he) \
	{ \
	return he->stat_acc->_field; \
	} \
	\
	static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
	struct perf_hpp *hpp, \
	struct hist_entry *he) \
	{ \
	return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%", \
	__percent_color_snprintf, true); \
	}

	__HPP_COLOR_PERCENT_FN(overhead, period)
	__HPP_COLOR_PERCENT_FN(overhead_sys, period_sys)
	__HPP_COLOR_PERCENT_FN(overhead_us, period_us)
	__HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys)
	__HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us)
	__HPP_COLOR_ACC_PERCENT_FN(overhead_acc, period)

	#undef __HPP_COLOR_PERCENT_FN


	void perf_gtk__init_hpp(void)
	{
	perf_hpp__format[PERF_HPP__OVERHEAD].color =
	perf_gtk__hpp_color_overhead;
	perf_hpp__format[PERF_HPP__OVERHEAD_SYS].color =
	perf_gtk__hpp_color_overhead_sys;
	perf_hpp__format[PERF_HPP__OVERHEAD_US].color =
	perf_gtk__hpp_color_overhead_us;
	perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].color =
	perf_gtk__hpp_color_overhead_guest_sys;
	perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].color =
	perf_gtk__hpp_color_overhead_guest_us;
	perf_hpp__format[PERF_HPP__OVERHEAD_ACC].color =
	perf_gtk__hpp_color_overhead_acc;
	}

	static void perf_gtk__add_callchain_flat(struct rb_root root, GtkTreeStore store,
	GtkTreeIter *parent, int col, u64 total)
	{
	struct rb_node *nd;
	bool has_single_node = (rb_first(root) == rb_last(root));

	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
	struct callchain_node *node;
	struct callchain_list *chain;
	GtkTreeIter iter, new_parent;
	bool need_new_parent;

	node = rb_entry(nd, struct callchain_node, rb_node);

	new_parent = *parent;
	need_new_parent = !has_single_node;

	callchain_node__make_parent_list(node);

	list_for_each_entry(chain, &node->parent_val, list) {
	char buf[128];

	gtk_tree_store_append(store, &iter, &new_parent);

	callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
	gtk_tree_store_set(store, &iter, 0, buf, -1);

	callchain_list__sym_name(chain, buf, sizeof(buf), false);
	gtk_tree_store_set(store, &iter, col, buf, -1);

	if (need_new_parent) {
	/*
	* Only show the top-most symbol in a callchain
	* if it's not the only callchain.
	*/
	new_parent = iter;
	need_new_parent = false;
	}
	}

	list_for_each_entry(chain, &node->val, list) {
	char buf[128];

	gtk_tree_store_append(store, &iter, &new_parent);

	callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
	gtk_tree_store_set(store, &iter, 0, buf, -1);

	callchain_list__sym_name(chain, buf, sizeof(buf), false);
	gtk_tree_store_set(store, &iter, col, buf, -1);

	if (need_new_parent) {
	/*
	* Only show the top-most symbol in a callchain
	* if it's not the only callchain.
	*/
	new_parent = iter;
	need_new_parent = false;
	}
	}
	}
	}

	static void perf_gtk__add_callchain_folded(struct rb_root root, GtkTreeStore store,
	GtkTreeIter *parent, int col, u64 total)
	{
	struct rb_node *nd;

	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
	struct callchain_node *node;
	struct callchain_list *chain;
	GtkTreeIter iter;
	char buf[64];
	char str, str_alloc = NULL;
	bool first = true;

	node = rb_entry(nd, struct callchain_node, rb_node);

	callchain_node__make_parent_list(node);

	list_for_each_entry(chain, &node->parent_val, list) {
	char name[1024];

	callchain_list__sym_name(chain, name, sizeof(name), false);

	if (asprintf(&str, "%s%s%s",
	first ? "" : str_alloc,
	first ? "" : symbol_conf.field_sep ?: "; ",
	name) < 0)
	return;

	first = false;
	free(str_alloc);
	str_alloc = str;
	}

	list_for_each_entry(chain, &node->val, list) {
	char name[1024];

	callchain_list__sym_name(chain, name, sizeof(name), false);

	if (asprintf(&str, "%s%s%s",
	first ? "" : str_alloc,
	first ? "" : symbol_conf.field_sep ?: "; ",
	name) < 0)
	return;

	first = false;
	free(str_alloc);
	str_alloc = str;
	}

	gtk_tree_store_append(store, &iter, parent);

	callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
	gtk_tree_store_set(store, &iter, 0, buf, -1);

	gtk_tree_store_set(store, &iter, col, str, -1);

	free(str_alloc);
	}
	}

	static void perf_gtk__add_callchain_graph(struct rb_root root, GtkTreeStore store,
	GtkTreeIter *parent, int col, u64 total)
	{
	struct rb_node *nd;
	bool has_single_node = (rb_first(root) == rb_last(root));

	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
	struct callchain_node *node;
	struct callchain_list *chain;
	GtkTreeIter iter, new_parent;
	bool need_new_parent;
	u64 child_total;

	node = rb_entry(nd, struct callchain_node, rb_node);

	new_parent = *parent;
	need_new_parent = !has_single_node && (node->val_nr > 1);

	list_for_each_entry(chain, &node->val, list) {
	char buf[128];

	gtk_tree_store_append(store, &iter, &new_parent);

	callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
	gtk_tree_store_set(store, &iter, 0, buf, -1);

	callchain_list__sym_name(chain, buf, sizeof(buf), false);
	gtk_tree_store_set(store, &iter, col, buf, -1);

	if (need_new_parent) {
	/*
	* Only show the top-most symbol in a callchain
	* if it's not the only callchain.
	*/
	new_parent = iter;
	need_new_parent = false;
	}
	}

	if (callchain_param.mode == CHAIN_GRAPH_REL)
	child_total = node->children_hit;
	else
	child_total = total;

	/* Now 'iter' contains info of the last callchain_list */
	perf_gtk__add_callchain_graph(&node->rb_root, store, &iter, col,
	child_total);
	}
	}

	static void perf_gtk__add_callchain(struct rb_root root, GtkTreeStore store,
	GtkTreeIter *parent, int col, u64 total)
	{
	if (callchain_param.mode == CHAIN_FLAT)
	perf_gtk__add_callchain_flat(root, store, parent, col, total);
	else if (callchain_param.mode == CHAIN_FOLDED)
	perf_gtk__add_callchain_folded(root, store, parent, col, total);
	else
	perf_gtk__add_callchain_graph(root, store, parent, col, total);
	}

	static void on_row_activated(GtkTreeView view, GtkTreePath path,
	GtkTreeViewColumn *col __maybe_unused,
	gpointer user_data __maybe_unused)
	{
	bool expanded = gtk_tree_view_row_expanded(view, path);

	if (expanded)
	gtk_tree_view_collapse_row(view, path);
	else
	gtk_tree_view_expand_row(view, path, FALSE);
	}

	static void perf_gtk__show_hists(GtkWidget window, struct hists hists,
	float min_pcnt)
	{
	struct perf_hpp_fmt *fmt;
	GType col_types[MAX_COLUMNS];
	GtkCellRenderer *renderer;
	GtkTreeStore *store;
	struct rb_node *nd;
	GtkWidget *view;
	int col_idx;
	int sym_col = -1;
	int nr_cols;
	char s[512];

	struct perf_hpp hpp = {
	.buf = s,
	.size = sizeof(s),
	};

	nr_cols = 0;

	perf_hpp__for_each_format(fmt)
	col_types[nr_cols++] = G_TYPE_STRING;

	store = gtk_tree_store_newv(nr_cols, col_types);

	view = gtk_tree_view_new();

	renderer = gtk_cell_renderer_text_new();

	col_idx = 0;

	perf_hpp__for_each_format(fmt) {
	if (perf_hpp__should_skip(fmt, hists))
	continue;

	/*
	* XXX no way to determine where symcol column is..
	* Just use last column for now.
	*/
	if (perf_hpp__is_sort_entry(fmt))
	sym_col = col_idx;

	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
	-1, fmt->name,
	renderer, "markup",
	col_idx++, NULL);
	}

	for (col_idx = 0; col_idx < nr_cols; col_idx++) {
	GtkTreeViewColumn *column;

	column = gtk_tree_view_get_column(GTK_TREE_VIEW(view), col_idx);
	gtk_tree_view_column_set_resizable(column, TRUE);

	if (col_idx == sym_col) {
	gtk_tree_view_set_expander_column(GTK_TREE_VIEW(view),
	column);
	}
	}

	gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(store));

	g_object_unref(GTK_TREE_MODEL(store));

	for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
	struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
	GtkTreeIter iter;
	u64 total = hists__total_period(h->hists);
	float percent;

	if (h->filtered)
	continue;

	percent = hist_entry__get_percent_limit(h);
	if (percent < min_pcnt)
	continue;

	gtk_tree_store_append(store, &iter, NULL);

	col_idx = 0;

	perf_hpp__for_each_format(fmt) {
	if (perf_hpp__should_skip(fmt, h->hists))
	continue;

	if (fmt->color)
	fmt->color(fmt, &hpp, h);
	else
	fmt->entry(fmt, &hpp, h);

	gtk_tree_store_set(store, &iter, col_idx++, s, -1);
	}

	if (symbol_conf.use_callchain && sort__has_sym) {
	if (callchain_param.mode == CHAIN_GRAPH_REL)
	total = symbol_conf.cumulate_callchain ?
	h->stat_acc->period : h->stat.period;

	perf_gtk__add_callchain(&h->sorted_chain, store, &iter,
	sym_col, total);
	}
	}

	gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(view), TRUE);

	g_signal_connect(view, "row-activated",
	G_CALLBACK(on_row_activated), NULL);
	gtk_container_add(GTK_CONTAINER(window), view);
	}

	int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
	const char *help,
	struct hist_browser_timer *hbt __maybe_unused,
	float min_pcnt)
	{
	struct perf_evsel *pos;
	GtkWidget *vbox;
	GtkWidget *notebook;
	GtkWidget *info_bar;
	GtkWidget *statbar;
	GtkWidget *window;

	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 report");

	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();

	gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);

	info_bar = perf_gtk__setup_info_bar();
	if (info_bar)
	gtk_box_pack_start(GTK_BOX(vbox), info_bar, 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);

	evlist__for_each(evlist, pos) {
	struct hists *hists = evsel__hists(pos);
	const char *evname = perf_evsel__name(pos);
	GtkWidget *scrolled_window;
	GtkWidget *tab_label;
	char buf[512];
	size_t size = sizeof(buf);

	if (symbol_conf.event_group) {
	if (!perf_evsel__is_group_leader(pos))
	continue;

	if (pos->nr_members > 1) {
	perf_evsel__group_desc(pos, buf, size);
	evname = buf;
	}
	}

	scrolled_window = gtk_scrolled_window_new(NULL, NULL);

	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
	GTK_POLICY_AUTOMATIC,
	GTK_POLICY_AUTOMATIC);

	perf_gtk__show_hists(scrolled_window, hists, min_pcnt);

	tab_label = gtk_label_new(evname);

	gtk_notebook_append_page(GTK_NOTEBOOK(notebook), scrolled_window, tab_label);
	}

	gtk_widget_show_all(window);

	perf_gtk__resize_window(window);

	gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);

	ui_helpline__push(help);

	gtk_main();

	perf_gtk__deactivate_context(&pgctx);

	return 0;
	}