[deliverable/linux.git] / tools / perf / util / ui / browsers / annotate.c

#include "../../util.h"
#include "../browser.h"
#include "../helpline.h"
#include "../libslang.h"
#include "../ui.h"
#include "../util.h"
#include "../../annotate.h"
#include "../../hist.h"
#include "../../sort.h"
#include "../../symbol.h"
#include <pthread.h>
#include <newt.h>

struct annotate_browser {
	struct ui_browser b;
	struct rb_root	  entries;
	struct rb_node	  *curr_hot;
	struct objdump_line *selection;
	u64		    start;
	int		    nr_asm_entries;
	int		    nr_entries;
	bool		    hide_src_code;
	bool		    use_offset;
};

struct objdump_line_rb_node {
	struct rb_node	rb_node;
	double		percent;
	u32		idx;
	int		idx_asm;
};

static inline
struct objdump_line_rb_node *objdump_line__rb(struct objdump_line *self)
{
	return (struct objdump_line_rb_node *)(self + 1);
}

static bool objdump_line__filter(struct ui_browser *browser, void *entry)
{
	struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);

	if (ab->hide_src_code) {
		struct objdump_line *ol = list_entry(entry, struct objdump_line, node);
		return ol->offset == -1;
	}

	return false;
}

static void annotate_browser__write(struct ui_browser *self, void *entry, int row)
{
	struct annotate_browser *ab = container_of(self, struct annotate_browser, b);
	struct objdump_line *ol = list_entry(entry, struct objdump_line, node);
	bool current_entry = ui_browser__is_current_entry(self, row);
	bool change_color = (!ab->hide_src_code &&
			     (!current_entry || (self->use_navkeypressed &&
					         !self->navkeypressed)));
	int width = self->width;

	if (ol->offset != -1) {
		struct objdump_line_rb_node *olrb = objdump_line__rb(ol);
		ui_browser__set_percent_color(self, olrb->percent, current_entry);
		slsmg_printf(" %7.2f ", olrb->percent);
	} else {
		ui_browser__set_percent_color(self, 0, current_entry);
		slsmg_write_nstring(" ", 9);
	}

	SLsmg_write_char(':');
	slsmg_write_nstring(" ", 8);

	/* The scroll bar isn't being used */
	if (!self->navkeypressed)
		width += 1;

	if (ol->offset != -1 && change_color)
		ui_browser__set_color(self, HE_COLORSET_CODE);

	if (!*ol->line)
		slsmg_write_nstring(" ", width - 18);
	else if (ol->offset == -1)
		slsmg_write_nstring(ol->line, width - 18);
	else {
		char bf[64];
		u64 addr = ol->offset;
		int printed, color = -1;

		if (!ab->use_offset)
			addr += ab->start;

		printed = scnprintf(bf, sizeof(bf), " %" PRIx64 ":", addr);
		if (change_color)
			color = ui_browser__set_color(self, HE_COLORSET_ADDR);
		slsmg_write_nstring(bf, printed);
		if (change_color)
			ui_browser__set_color(self, color);
		slsmg_write_nstring(ol->line, width - 18 - printed);
	}

	if (current_entry)
		ab->selection = ol;
}

static double objdump_line__calc_percent(struct objdump_line *self,
					 struct symbol *sym, int evidx)
{
	double percent = 0.0;

	if (self->offset != -1) {
		int len = sym->end - sym->start;
		unsigned int hits = 0;
		struct annotation *notes = symbol__annotation(sym);
		struct source_line *src_line = notes->src->lines;
		struct sym_hist *h = annotation__histogram(notes, evidx);
		s64 offset = self->offset;
		struct objdump_line *next;

		next = objdump__get_next_ip_line(&notes->src->source, self);
		while (offset < (s64)len &&
		       (next == NULL || offset < next->offset)) {
			if (src_line) {
				percent += src_line[offset].percent;
			} else
				hits += h->addr[offset];

			++offset;
		}
		/*
 		 * If the percentage wasn't already calculated in
 		 * symbol__get_source_line, do it now:
 		 */
		if (src_line == NULL && h->sum)
			percent = 100.0 * hits / h->sum;
	}

	return percent;
}

static void objdump__insert_line(struct rb_root *self,
				 struct objdump_line_rb_node *line)
{
	struct rb_node **p = &self->rb_node;
	struct rb_node *parent = NULL;
	struct objdump_line_rb_node *l;

	while (*p != NULL) {
		parent = *p;
		l = rb_entry(parent, struct objdump_line_rb_node, rb_node);
		if (line->percent < l->percent)
			p = &(*p)->rb_left;
		else
			p = &(*p)->rb_right;
	}
	rb_link_node(&line->rb_node, parent, p);
	rb_insert_color(&line->rb_node, self);
}

static void annotate_browser__set_top(struct annotate_browser *self,
				      struct objdump_line *pos, u32 idx)
{
	unsigned back;

	ui_browser__refresh_dimensions(&self->b);
	back = self->b.height / 2;
	self->b.top_idx = self->b.index = idx;

	while (self->b.top_idx != 0 && back != 0) {
		pos = list_entry(pos->node.prev, struct objdump_line, node);

		--self->b.top_idx;
		--back;
	}

	self->b.top = pos;
}

static void annotate_browser__set_rb_top(struct annotate_browser *browser,
					 struct rb_node *nd)
{
	struct objdump_line_rb_node *rbpos;
	struct objdump_line *pos;

	rbpos = rb_entry(nd, struct objdump_line_rb_node, rb_node);
	pos = ((struct objdump_line *)rbpos) - 1;
	annotate_browser__set_top(browser, pos, rbpos->idx);
	browser->curr_hot = nd;
}

static void annotate_browser__calc_percent(struct annotate_browser *browser,
					   int evidx)
{
	struct map_symbol *ms = browser->b.priv;
	struct symbol *sym = ms->sym;
	struct annotation *notes = symbol__annotation(sym);
	struct objdump_line *pos;

	browser->entries = RB_ROOT;

	pthread_mutex_lock(&notes->lock);

	list_for_each_entry(pos, &notes->src->source, node) {
		struct objdump_line_rb_node *rbpos = objdump_line__rb(pos);
		rbpos->percent = objdump_line__calc_percent(pos, sym, evidx);
		if (rbpos->percent < 0.01) {
			RB_CLEAR_NODE(&rbpos->rb_node);
			continue;
		}
		objdump__insert_line(&browser->entries, rbpos);
	}
	pthread_mutex_unlock(&notes->lock);

	browser->curr_hot = rb_last(&browser->entries);
}

static bool annotate_browser__toggle_source(struct annotate_browser *browser)
{
	struct objdump_line *ol;
	struct objdump_line_rb_node *olrb;
	off_t offset = browser->b.index - browser->b.top_idx;

	browser->b.seek(&browser->b, offset, SEEK_CUR);
	ol = list_entry(browser->b.top, struct objdump_line, node);
	olrb = objdump_line__rb(ol);

	if (browser->hide_src_code) {
		if (olrb->idx_asm < offset)
			offset = olrb->idx;

		browser->b.nr_entries = browser->nr_entries;
		browser->hide_src_code = false;
		browser->b.seek(&browser->b, -offset, SEEK_CUR);
		browser->b.top_idx = olrb->idx - offset;
		browser->b.index = olrb->idx;
	} else {
		if (olrb->idx_asm < 0) {
			ui_helpline__puts("Only available for assembly lines.");
			browser->b.seek(&browser->b, -offset, SEEK_CUR);
			return false;
		}

		if (olrb->idx_asm < offset)
			offset = olrb->idx_asm;

		browser->b.nr_entries = browser->nr_asm_entries;
		browser->hide_src_code = true;
		browser->b.seek(&browser->b, -offset, SEEK_CUR);
		browser->b.top_idx = olrb->idx_asm - offset;
		browser->b.index = olrb->idx_asm;
	}

	return true;
}

static bool annotate_browser__callq(struct annotate_browser *browser,
				    int evidx, void (*timer)(void *arg),
				    void *arg, int delay_secs)
{
	struct map_symbol *ms = browser->b.priv;
	struct symbol *sym = ms->sym;
	struct annotation *notes;
	struct symbol *target;
	char *s = strstr(browser->selection->line, "callq ");
	u64 ip;

	if (s == NULL)
		return false;

	s = strchr(s, ' ');
	if (s++ == NULL) {
		ui_helpline__puts("Invallid callq instruction.");
		return true;
	}

	ip = strtoull(s, NULL, 16);
	ip = ms->map->map_ip(ms->map, ip);
	target = map__find_symbol(ms->map, ip, NULL);
	if (target == NULL) {
		ui_helpline__puts("The called function was not found.");
		return true;
	}

	notes = symbol__annotation(target);
	pthread_mutex_lock(&notes->lock);

	if (notes->src == NULL && symbol__alloc_hist(target) < 0) {
		pthread_mutex_unlock(&notes->lock);
		ui__warning("Not enough memory for annotating '%s' symbol!\n",
			    target->name);
		return true;
	}

	pthread_mutex_unlock(&notes->lock);
	symbol__tui_annotate(target, ms->map, evidx, timer, arg, delay_secs);
	ui_browser__show_title(&browser->b, sym->name);
	return true;
}

static int annotate_browser__run(struct annotate_browser *self, int evidx,
				 void(*timer)(void *arg),
				 void *arg, int delay_secs)
{
	struct rb_node *nd = NULL;
	struct map_symbol *ms = self->b.priv;
	struct symbol *sym = ms->sym;
	const char *help = "<-/ESC: Exit, TAB/shift+TAB: Cycle hot lines, "
			   "H: Go to hottest line, ->/ENTER: Line action, "
			   "O: Toggle offset view, "
			   "S: Toggle source code view";
	int key;

	if (ui_browser__show(&self->b, sym->name, help) < 0)
		return -1;

	annotate_browser__calc_percent(self, evidx);

	if (self->curr_hot)
		annotate_browser__set_rb_top(self, self->curr_hot);

	nd = self->curr_hot;

	while (1) {
		key = ui_browser__run(&self->b, delay_secs);

		if (delay_secs != 0) {
			annotate_browser__calc_percent(self, evidx);
			/*
			 * Current line focus got out of the list of most active
			 * lines, NULL it so that if TAB|UNTAB is pressed, we
			 * move to curr_hot (current hottest line).
			 */
			if (nd != NULL && RB_EMPTY_NODE(nd))
				nd = NULL;
		}

		switch (key) {
		case K_TIMER:
			if (timer != NULL)
				timer(arg);

			if (delay_secs != 0)
				symbol__annotate_decay_histogram(sym, evidx);
			continue;
		case K_TAB:
			if (nd != NULL) {
				nd = rb_prev(nd);
				if (nd == NULL)
					nd = rb_last(&self->entries);
			} else
				nd = self->curr_hot;
			break;
		case K_UNTAB:
			if (nd != NULL)
				nd = rb_next(nd);
				if (nd == NULL)
					nd = rb_first(&self->entries);
			else
				nd = self->curr_hot;
			break;
		case 'H':
		case 'h':
			nd = self->curr_hot;
			break;
		case 'S':
		case 's':
			if (annotate_browser__toggle_source(self))
				ui_helpline__puts(help);
			continue;
		case 'O':
		case 'o':
			self->use_offset = !self->use_offset;
			continue;
		case K_ENTER:
		case K_RIGHT:
			if (self->selection == NULL)
				ui_helpline__puts("Huh? No selection. Report to linux-kernel@vger.kernel.org");
			else if (self->selection->offset == -1)
				ui_helpline__puts("Actions are only available for assembly lines.");
			else if (!annotate_browser__callq(self, evidx, timer, arg, delay_secs))
				ui_helpline__puts("Actions are only available for the 'callq' instruction.");
			continue;
		case K_LEFT:
		case K_ESC:
		case 'q':
		case CTRL('c'):
			goto out;
		default:
			continue;
		}

		if (nd != NULL)
			annotate_browser__set_rb_top(self, nd);
	}
out:
	ui_browser__hide(&self->b);
	return key;
}

int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
			     void(*timer)(void *arg), void *arg, int delay_secs)
{
	return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx,
				    timer, arg, delay_secs);
}

int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
			 void(*timer)(void *arg), void *arg,
			 int delay_secs)
{
	struct objdump_line *pos, *n;
	struct annotation *notes;
	struct map_symbol ms = {
		.map = map,
		.sym = sym,
	};
	struct annotate_browser browser = {
		.b = {
			.refresh = ui_browser__list_head_refresh,
			.seek	 = ui_browser__list_head_seek,
			.write	 = annotate_browser__write,
			.filter  = objdump_line__filter,
			.priv	 = &ms,
			.use_navkeypressed = true,
		},
	};
	int ret;

	if (sym == NULL)
		return -1;

	if (map->dso->annotate_warned)
		return -1;

	if (symbol__annotate(sym, map, sizeof(struct objdump_line_rb_node)) < 0) {
		ui__error("%s", ui_helpline__last_msg);
		return -1;
	}

	ui_helpline__push("Press <- or ESC to exit");

	notes = symbol__annotation(sym);
	browser.start = map__rip_2objdump(map, sym->start);

	list_for_each_entry(pos, &notes->src->source, node) {
		struct objdump_line_rb_node *rbpos;
		size_t line_len = strlen(pos->line);

		if (browser.b.width < line_len)
			browser.b.width = line_len;
		rbpos = objdump_line__rb(pos);
		rbpos->idx = browser.nr_entries++;
		if (pos->offset != -1)
			rbpos->idx_asm = browser.nr_asm_entries++;
		else
			rbpos->idx_asm = -1;
	}

	browser.b.nr_entries = browser.nr_entries;
	browser.b.entries = &notes->src->source,
	browser.b.width += 18; /* Percentage */
	ret = annotate_browser__run(&browser, evidx, timer, arg, delay_secs);
	list_for_each_entry_safe(pos, n, &notes->src->source, node) {
		list_del(&pos->node);
		objdump_line__free(pos);
	}
	return ret;
}
Commit	Line	Data
ae55795e	1	#include "../../util.h"
211ef127 ACM	2	#include "../browser.h"
	3	#include "../helpline.h"
	4	#include "../libslang.h"
ae55795e ACM	5	#include "../ui.h"
ae55795e ACM	6	#include "../util.h"
78f7defe	7	#include "../../annotate.h"
211ef127 ACM	8	#include "../../hist.h"
	9	#include "../../sort.h"
	10	#include "../../symbol.h"
c97cf422	11	#include <pthread.h>
cf958003	12	#include <newt.h>
211ef127	13
92221162 ACM	14	struct annotate_browser {
	15	struct ui_browser b;
	16	struct rb_root entries;
f1e9214c	17	struct rb_node *curr_hot;
34958544	18	struct objdump_line *selection;
058b4cc9	19	u64 start;
0361fc25 ACM	20	int nr_asm_entries;
	21	int nr_entries;
	22	bool hide_src_code;
e235f3f3	23	bool use_offset;
92221162 ACM	24	};
	25
	26	struct objdump_line_rb_node {
	27	struct rb_node rb_node;
	28	double percent;
	29	u32 idx;
0361fc25	30	int idx_asm;
92221162 ACM	31	};
	32
	33	static inline
	34	struct objdump_line_rb_node objdump_line__rb(struct objdump_line self)
	35	{
	36	return (struct objdump_line_rb_node *)(self + 1);
	37	}
	38
0361fc25 ACM	39	static bool objdump_line__filter(struct ui_browser browser, void entry)
	40	{
	41	struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
	42
	43	if (ab->hide_src_code) {
	44	struct objdump_line *ol = list_entry(entry, struct objdump_line, node);
	45	return ol->offset == -1;
	46	}
	47
	48	return false;
	49	}
	50
211ef127 ACM	51	static void annotate_browser__write(struct ui_browser self, void entry, int row)
211ef127 ACM	52	{
34958544	53	struct annotate_browser *ab = container_of(self, struct annotate_browser, b);
0361fc25	54	struct objdump_line *ol = list_entry(entry, struct objdump_line, node);
211ef127	55	bool current_entry = ui_browser__is_current_entry(self, row);
058b4cc9 ACM	56	bool change_color = (!ab->hide_src_code &&
	57	(!current_entry \|\| (self->use_navkeypressed &&
	58	!self->navkeypressed)));
211ef127 ACM	59	int width = self->width;
	60
	61	if (ol->offset != -1) {
92221162	62	struct objdump_line_rb_node *olrb = objdump_line__rb(ol);
8f9bbc40	63	ui_browser__set_percent_color(self, olrb->percent, current_entry);
92221162	64	slsmg_printf(" %7.2f ", olrb->percent);
92221162	65	} else {
8f9bbc40	66	ui_browser__set_percent_color(self, 0, current_entry);
92221162 ACM	67	slsmg_write_nstring(" ", 9);
	68	}
	69
	70	SLsmg_write_char(':');
	71	slsmg_write_nstring(" ", 8);
c172f742 ACM	72
	73	/* The scroll bar isn't being used */
	74	if (!self->navkeypressed)
	75	width += 1;
	76
058b4cc9 ACM	77	if (ol->offset != -1 && change_color)
058b4cc9 ACM	78	ui_browser__set_color(self, HE_COLORSET_CODE);
58e817d9	79
92221162 ACM	80	if (!*ol->line)
92221162 ACM	81	slsmg_write_nstring(" ", width - 18);
058b4cc9	82	else if (ol->offset == -1)
92221162	83	slsmg_write_nstring(ol->line, width - 18);
058b4cc9 ACM	84	else {
058b4cc9 ACM	85	char bf[64];
e235f3f3 ACM	86	u64 addr = ol->offset;
e235f3f3 ACM	87	int printed, color = -1;
058b4cc9	88
e235f3f3 ACM	89	if (!ab->use_offset)
	90	addr += ab->start;
	91
	92	printed = scnprintf(bf, sizeof(bf), " %" PRIx64 ":", addr);
058b4cc9 ACM	93	if (change_color)
	94	color = ui_browser__set_color(self, HE_COLORSET_ADDR);
	95	slsmg_write_nstring(bf, printed);
	96	if (change_color)
	97	ui_browser__set_color(self, color);
	98	slsmg_write_nstring(ol->line, width - 18 - printed);
	99	}
b99976e2	100
58e817d9	101	if (current_entry)
34958544	102	ab->selection = ol;
92221162 ACM	103	}
	104
	105	static double objdump_line__calc_percent(struct objdump_line *self,
2f525d01	106	struct symbol *sym, int evidx)
92221162 ACM	107	{
	108	double percent = 0.0;
	109
	110	if (self->offset != -1) {
	111	int len = sym->end - sym->start;
211ef127	112	unsigned int hits = 0;
78f7defe	113	struct annotation *notes = symbol__annotation(sym);
ce6f4fab	114	struct source_line *src_line = notes->src->lines;
2f525d01	115	struct sym_hist *h = annotation__histogram(notes, evidx);
92221162	116	s64 offset = self->offset;
ce6f4fab	117	struct objdump_line *next;
92221162	118
ce6f4fab	119	next = objdump__get_next_ip_line(&notes->src->source, self);
211ef127 ACM	120	while (offset < (s64)len &&
211ef127 ACM	121	(next == NULL \|\| offset < next->offset)) {
78f7defe ACM	122	if (src_line) {
78f7defe ACM	123	percent += src_line[offset].percent;
211ef127	124	} else
78f7defe	125	hits += h->addr[offset];
211ef127 ACM	126
	127	++offset;
	128	}
78f7defe ACM	129	/*
	130	* If the percentage wasn't already calculated in
	131	* symbol__get_source_line, do it now:
	132	*/
	133	if (src_line == NULL && h->sum)
211ef127	134	percent = 100.0 * hits / h->sum;
211ef127 ACM	135	}
211ef127 ACM	136
92221162 ACM	137	return percent;
	138	}
	139
	140	static void objdump__insert_line(struct rb_root *self,
	141	struct objdump_line_rb_node *line)
	142	{
	143	struct rb_node **p = &self->rb_node;
	144	struct rb_node *parent = NULL;
	145	struct objdump_line_rb_node *l;
	146
	147	while (*p != NULL) {
	148	parent = *p;
	149	l = rb_entry(parent, struct objdump_line_rb_node, rb_node);
	150	if (line->percent < l->percent)
	151	p = &(*p)->rb_left;
	152	else
	153	p = &(*p)->rb_right;
	154	}
	155	rb_link_node(&line->rb_node, parent, p);
	156	rb_insert_color(&line->rb_node, self);
211ef127 ACM	157	}
211ef127 ACM	158
f1e9214c	159	static void annotate_browser__set_top(struct annotate_browser *self,
b0ffb2c4	160	struct objdump_line *pos, u32 idx)
f1e9214c	161	{
f1e9214c ACM	162	unsigned back;
	163
	164	ui_browser__refresh_dimensions(&self->b);
	165	back = self->b.height / 2;
b0ffb2c4	166	self->b.top_idx = self->b.index = idx;
f1e9214c ACM	167
	168	while (self->b.top_idx != 0 && back != 0) {
	169	pos = list_entry(pos->node.prev, struct objdump_line, node);
	170
	171	--self->b.top_idx;
	172	--back;
	173	}
	174
	175	self->b.top = pos;
b0ffb2c4 ACM	176	}
	177
	178	static void annotate_browser__set_rb_top(struct annotate_browser *browser,
	179	struct rb_node *nd)
	180	{
	181	struct objdump_line_rb_node *rbpos;
	182	struct objdump_line *pos;
	183
	184	rbpos = rb_entry(nd, struct objdump_line_rb_node, rb_node);
	185	pos = ((struct objdump_line *)rbpos) - 1;
	186	annotate_browser__set_top(browser, pos, rbpos->idx);
	187	browser->curr_hot = nd;
f1e9214c ACM	188	}
f1e9214c ACM	189
c97cf422 ACM	190	static void annotate_browser__calc_percent(struct annotate_browser *browser,
c97cf422 ACM	191	int evidx)
f1e9214c	192	{
34958544 ACM	193	struct map_symbol *ms = browser->b.priv;
34958544 ACM	194	struct symbol *sym = ms->sym;
c97cf422 ACM	195	struct annotation *notes = symbol__annotation(sym);
	196	struct objdump_line *pos;
	197
	198	browser->entries = RB_ROOT;
	199
	200	pthread_mutex_lock(&notes->lock);
	201
	202	list_for_each_entry(pos, &notes->src->source, node) {
	203	struct objdump_line_rb_node *rbpos = objdump_line__rb(pos);
	204	rbpos->percent = objdump_line__calc_percent(pos, sym, evidx);
	205	if (rbpos->percent < 0.01) {
	206	RB_CLEAR_NODE(&rbpos->rb_node);
	207	continue;
	208	}
	209	objdump__insert_line(&browser->entries, rbpos);
	210	}
	211	pthread_mutex_unlock(&notes->lock);
	212
	213	browser->curr_hot = rb_last(&browser->entries);
	214	}
	215
0361fc25 ACM	216	static bool annotate_browser__toggle_source(struct annotate_browser *browser)
	217	{
	218	struct objdump_line *ol;
	219	struct objdump_line_rb_node *olrb;
	220	off_t offset = browser->b.index - browser->b.top_idx;
	221
	222	browser->b.seek(&browser->b, offset, SEEK_CUR);
	223	ol = list_entry(browser->b.top, struct objdump_line, node);
	224	olrb = objdump_line__rb(ol);
	225
	226	if (browser->hide_src_code) {
	227	if (olrb->idx_asm < offset)
	228	offset = olrb->idx;
	229
	230	browser->b.nr_entries = browser->nr_entries;
	231	browser->hide_src_code = false;
	232	browser->b.seek(&browser->b, -offset, SEEK_CUR);
	233	browser->b.top_idx = olrb->idx - offset;
	234	browser->b.index = olrb->idx;
	235	} else {
	236	if (olrb->idx_asm < 0) {
	237	ui_helpline__puts("Only available for assembly lines.");
	238	browser->b.seek(&browser->b, -offset, SEEK_CUR);
	239	return false;
	240	}
	241
	242	if (olrb->idx_asm < offset)
	243	offset = olrb->idx_asm;
	244
	245	browser->b.nr_entries = browser->nr_asm_entries;
	246	browser->hide_src_code = true;
	247	browser->b.seek(&browser->b, -offset, SEEK_CUR);
	248	browser->b.top_idx = olrb->idx_asm - offset;
	249	browser->b.index = olrb->idx_asm;
	250	}
	251
	252	return true;
	253	}
	254
60521702 ACM	255	static bool annotate_browser__callq(struct annotate_browser *browser,
	256	int evidx, void (timer)(void arg),
	257	void *arg, int delay_secs)
	258	{
	259	struct map_symbol *ms = browser->b.priv;
	260	struct symbol *sym = ms->sym;
	261	struct annotation *notes;
	262	struct symbol *target;
	263	char *s = strstr(browser->selection->line, "callq ");
	264	u64 ip;
	265
	266	if (s == NULL)
	267	return false;
	268
	269	s = strchr(s, ' ');
	270	if (s++ == NULL) {
	271	ui_helpline__puts("Invallid callq instruction.");
	272	return true;
	273	}
	274
	275	ip = strtoull(s, NULL, 16);
	276	ip = ms->map->map_ip(ms->map, ip);
	277	target = map__find_symbol(ms->map, ip, NULL);
	278	if (target == NULL) {
	279	ui_helpline__puts("The called function was not found.");
	280	return true;
	281	}
	282
	283	notes = symbol__annotation(target);
	284	pthread_mutex_lock(&notes->lock);
	285
	286	if (notes->src == NULL && symbol__alloc_hist(target) < 0) {
	287	pthread_mutex_unlock(&notes->lock);
	288	ui__warning("Not enough memory for annotating '%s' symbol!\n",
	289	target->name);
	290	return true;
	291	}
	292
	293	pthread_mutex_unlock(&notes->lock);
	294	symbol__tui_annotate(target, ms->map, evidx, timer, arg, delay_secs);
	295	ui_browser__show_title(&browser->b, sym->name);
	296	return true;
	297	}
	298
c97cf422	299	static int annotate_browser__run(struct annotate_browser *self, int evidx,
d04b35f8	300	void(timer)(void arg),
34958544	301	void *arg, int delay_secs)
c97cf422 ACM	302	{
c97cf422 ACM	303	struct rb_node *nd = NULL;
34958544 ACM	304	struct map_symbol *ms = self->b.priv;
34958544 ACM	305	struct symbol *sym = ms->sym;
824ac0e9 NK	306	const char *help = "<-/ESC: Exit, TAB/shift+TAB: Cycle hot lines, "
824ac0e9 NK	307	"H: Go to hottest line, ->/ENTER: Line action, "
e235f3f3	308	"O: Toggle offset view, "
824ac0e9	309	"S: Toggle source code view";
b50e003d	310	int key;
f1e9214c	311
0361fc25	312	if (ui_browser__show(&self->b, sym->name, help) < 0)
f1e9214c	313	return -1;
c97cf422	314
c97cf422 ACM	315	annotate_browser__calc_percent(self, evidx);
	316
	317	if (self->curr_hot)
b0ffb2c4	318	annotate_browser__set_rb_top(self, self->curr_hot);
f1e9214c ACM	319
f1e9214c ACM	320	nd = self->curr_hot;
c97cf422	321
f1e9214c	322	while (1) {
3af6e338	323	key = ui_browser__run(&self->b, delay_secs);
f1e9214c	324
81cce8de	325	if (delay_secs != 0) {
c97cf422 ACM	326	annotate_browser__calc_percent(self, evidx);
	327	/*
	328	* Current line focus got out of the list of most active
	329	* lines, NULL it so that if TAB\|UNTAB is pressed, we
	330	* move to curr_hot (current hottest line).
	331	*/
	332	if (nd != NULL && RB_EMPTY_NODE(nd))
	333	nd = NULL;
	334	}
	335
b50e003d	336	switch (key) {
cf958003	337	case K_TIMER:
81cce8de ACM	338	if (timer != NULL)
	339	timer(arg);
	340
	341	if (delay_secs != 0)
c97cf422 ACM	342	symbol__annotate_decay_histogram(sym, evidx);
c97cf422 ACM	343	continue;
cf958003	344	case K_TAB:
c97cf422 ACM	345	if (nd != NULL) {
	346	nd = rb_prev(nd);
	347	if (nd == NULL)
	348	nd = rb_last(&self->entries);
	349	} else
	350	nd = self->curr_hot;
f1e9214c	351	break;
cf958003	352	case K_UNTAB:
c97cf422 ACM	353	if (nd != NULL)
	354	nd = rb_next(nd);
	355	if (nd == NULL)
	356	nd = rb_first(&self->entries);
	357	else
	358	nd = self->curr_hot;
	359	break;
	360	case 'H':
ef7c5372	361	case 'h':
c97cf422	362	nd = self->curr_hot;
f1e9214c	363	break;
0361fc25	364	case 'S':
ef7c5372	365	case 's':
0361fc25 ACM	366	if (annotate_browser__toggle_source(self))
	367	ui_helpline__puts(help);
	368	continue;
e235f3f3 ACM	369	case 'O':
	370	case 'o':
	371	self->use_offset = !self->use_offset;
	372	continue;
cf958003 ACM	373	case K_ENTER:
cf958003 ACM	374	case K_RIGHT:
60521702	375	if (self->selection == NULL)
234a5375	376	ui_helpline__puts("Huh? No selection. Report to linux-kernel@vger.kernel.org");
60521702	377	else if (self->selection->offset == -1)
234a5375	378	ui_helpline__puts("Actions are only available for assembly lines.");
60521702 ACM	379	else if (!annotate_browser__callq(self, evidx, timer, arg, delay_secs))
60521702 ACM	380	ui_helpline__puts("Actions are only available for the 'callq' instruction.");
fe46e64c	381	continue;
cf958003 ACM	382	case K_LEFT:
cf958003 ACM	383	case K_ESC:
ed7e5662 ACM	384	case 'q':
ed7e5662 ACM	385	case CTRL('c'):
f1e9214c	386	goto out;
ed7e5662 ACM	387	default:
ed7e5662 ACM	388	continue;
f1e9214c	389	}
c97cf422 ACM	390
c97cf422 ACM	391	if (nd != NULL)
b0ffb2c4	392	annotate_browser__set_rb_top(self, nd);
f1e9214c ACM	393	}
f1e9214c ACM	394	out:
59e8fe32	395	ui_browser__hide(&self->b);
b50e003d	396	return key;
f1e9214c ACM	397	}
f1e9214c ACM	398
d04b35f8	399	int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
81cce8de	400	void(timer)(void arg), void *arg, int delay_secs)
78f7defe	401	{
d04b35f8	402	return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx,
81cce8de	403	timer, arg, delay_secs);
78f7defe ACM	404	}
78f7defe ACM	405
c97cf422	406	int symbol__tui_annotate(struct symbol sym, struct map map, int evidx,
d04b35f8	407	void(timer)(void arg), void *arg,
34958544	408	int delay_secs)
211ef127	409	{
211ef127	410	struct objdump_line pos, n;
db9a9cbc	411	struct annotation *notes;
34958544 ACM	412	struct map_symbol ms = {
	413	.map = map,
	414	.sym = sym,
	415	};
92221162 ACM	416	struct annotate_browser browser = {
92221162 ACM	417	.b = {
92221162 ACM	418	.refresh = ui_browser__list_head_refresh,
	419	.seek = ui_browser__list_head_seek,
	420	.write = annotate_browser__write,
0361fc25	421	.filter = objdump_line__filter,
34958544	422	.priv = &ms,
c172f742	423	.use_navkeypressed = true,
92221162	424	},
211ef127 ACM	425	};
	426	int ret;
	427
78f7defe	428	if (sym == NULL)
211ef127 ACM	429	return -1;
211ef127 ACM	430
78f7defe	431	if (map->dso->annotate_warned)
211ef127 ACM	432	return -1;
211ef127 ACM	433
c97cf422	434	if (symbol__annotate(sym, map, sizeof(struct objdump_line_rb_node)) < 0) {
ae55795e	435	ui__error("%s", ui_helpline__last_msg);
211ef127 ACM	436	return -1;
	437	}
	438
	439	ui_helpline__push("Press <- or ESC to exit");
	440
db9a9cbc	441	notes = symbol__annotation(sym);
058b4cc9	442	browser.start = map__rip_2objdump(map, sym->start);
db9a9cbc	443
ce6f4fab	444	list_for_each_entry(pos, &notes->src->source, node) {
c97cf422	445	struct objdump_line_rb_node *rbpos;
211ef127	446	size_t line_len = strlen(pos->line);
c97cf422	447
92221162 ACM	448	if (browser.b.width < line_len)
	449	browser.b.width = line_len;
	450	rbpos = objdump_line__rb(pos);
0361fc25 ACM	451	rbpos->idx = browser.nr_entries++;
	452	if (pos->offset != -1)
	453	rbpos->idx_asm = browser.nr_asm_entries++;
	454	else
	455	rbpos->idx_asm = -1;
92221162 ACM	456	}
92221162 ACM	457
0361fc25	458	browser.b.nr_entries = browser.nr_entries;
db9a9cbc	459	browser.b.entries = &notes->src->source,
92221162	460	browser.b.width += 18; /* Percentage */
d04b35f8	461	ret = annotate_browser__run(&browser, evidx, timer, arg, delay_secs);
ce6f4fab	462	list_for_each_entry_safe(pos, n, &notes->src->source, node) {
211ef127 ACM	463	list_del(&pos->node);
	464	objdump_line__free(pos);
	465	}
211ef127 ACM	466	return ret;
211ef127 ACM	467	}