Initial import

1 files changed, 1039 insertions, 0 deletions

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
new file mode 100644
index 000000000..e5250eb2d
--- /dev/null
+++ b/tools/perf/ui/browsers/annotate.c
@@ -0,0 +1,1039 @@
+#include "../../util/util.h"
+#include "../browser.h"
+#include "../helpline.h"
+#include "../libslang.h"
+#include "../ui.h"
+#include "../util.h"
+#include "../../util/annotate.h"
+#include "../../util/hist.h"
+#include "../../util/sort.h"
+#include "../../util/symbol.h"
+#include "../../util/evsel.h"
+#include <pthread.h>
+
+struct browser_disasm_line {
+	struct rb_node	rb_node;
+	u32		idx;
+	int		idx_asm;
+	int		jump_sources;
+	/*
+	 * actual length of this array is saved on the nr_events field
+	 * of the struct annotate_browser
+	 */
+	double		percent[1];
+};
+
+static struct annotate_browser_opt {
+	bool hide_src_code,
+	     use_offset,
+	     jump_arrows,
+	     show_linenr,
+	     show_nr_jumps;
+} annotate_browser__opts = {
+	.use_offset	= true,
+	.jump_arrows	= true,
+};
+
+struct annotate_browser {
+	struct ui_browser b;
+	struct rb_root	  entries;
+	struct rb_node	  *curr_hot;
+	struct disasm_line  *selection;
+	struct disasm_line  **offsets;
+	int		    nr_events;
+	u64		    start;
+	int		    nr_asm_entries;
+	int		    nr_entries;
+	int		    max_jump_sources;
+	int		    nr_jumps;
+	bool		    searching_backwards;
+	u8		    addr_width;
+	u8		    jumps_width;
+	u8		    target_width;
+	u8		    min_addr_width;
+	u8		    max_addr_width;
+	char		    search_bf[128];
+};
+
+static inline struct browser_disasm_line *disasm_line__browser(struct disasm_line *dl)
+{
+	return (struct browser_disasm_line *)(dl + 1);
+}
+
+static bool disasm_line__filter(struct ui_browser *browser __maybe_unused,
+				void *entry)
+{
+	if (annotate_browser__opts.hide_src_code) {
+		struct disasm_line *dl = list_entry(entry, struct disasm_line, node);
+		return dl->offset == -1;
+	}
+
+	return false;
+}
+
+static int annotate_browser__jumps_percent_color(struct annotate_browser *browser,
+						 int nr, bool current)
+{
+	if (current && (!browser->b.use_navkeypressed || browser->b.navkeypressed))
+		return HE_COLORSET_SELECTED;
+	if (nr == browser->max_jump_sources)
+		return HE_COLORSET_TOP;
+	if (nr > 1)
+		return HE_COLORSET_MEDIUM;
+	return HE_COLORSET_NORMAL;
+}
+
+static int annotate_browser__set_jumps_percent_color(struct annotate_browser *browser,
+						     int nr, bool current)
+{
+	 int color = annotate_browser__jumps_percent_color(browser, nr, current);
+	 return ui_browser__set_color(&browser->b, color);
+}
+
+static void annotate_browser__write(struct ui_browser *browser, void *entry, int row)
+{
+	struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
+	struct disasm_line *dl = list_entry(entry, struct disasm_line, node);
+	struct browser_disasm_line *bdl = disasm_line__browser(dl);
+	bool current_entry = ui_browser__is_current_entry(browser, row);
+	bool change_color = (!annotate_browser__opts.hide_src_code &&
+			     (!current_entry || (browser->use_navkeypressed &&
+					         !browser->navkeypressed)));
+	int width = browser->width, printed;
+	int i, pcnt_width = 7 * ab->nr_events;
+	double percent_max = 0.0;
+	char bf[256];
+
+	for (i = 0; i < ab->nr_events; i++) {
+		if (bdl->percent[i] > percent_max)
+			percent_max = bdl->percent[i];
+	}
+
+	if (dl->offset != -1 && percent_max != 0.0) {
+		for (i = 0; i < ab->nr_events; i++) {
+			ui_browser__set_percent_color(browser, bdl->percent[i],
+						      current_entry);
+			slsmg_printf("%6.2f ", bdl->percent[i]);
+		}
+	} else {
+		ui_browser__set_percent_color(browser, 0, current_entry);
+		slsmg_write_nstring(" ", pcnt_width);
+	}
+
+	SLsmg_write_char(' ');
+
+	/* The scroll bar isn't being used */
+	if (!browser->navkeypressed)
+		width += 1;
+
+	if (!*dl->line)
+		slsmg_write_nstring(" ", width - pcnt_width);
+	else if (dl->offset == -1) {
+		if (dl->line_nr && annotate_browser__opts.show_linenr)
+			printed = scnprintf(bf, sizeof(bf), "%-*d ",
+					ab->addr_width + 1, dl->line_nr);
+		else
+			printed = scnprintf(bf, sizeof(bf), "%*s  ",
+				    ab->addr_width, " ");
+		slsmg_write_nstring(bf, printed);
+		slsmg_write_nstring(dl->line, width - printed - pcnt_width + 1);
+	} else {
+		u64 addr = dl->offset;
+		int color = -1;
+
+		if (!annotate_browser__opts.use_offset)
+			addr += ab->start;
+
+		if (!annotate_browser__opts.use_offset) {
+			printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
+		} else {
+			if (bdl->jump_sources) {
+				if (annotate_browser__opts.show_nr_jumps) {
+					int prev;
+					printed = scnprintf(bf, sizeof(bf), "%*d ",
+							    ab->jumps_width,
+							    bdl->jump_sources);
+					prev = annotate_browser__set_jumps_percent_color(ab, bdl->jump_sources,
+											 current_entry);
+					slsmg_write_nstring(bf, printed);
+					ui_browser__set_color(browser, prev);
+				}
+
+				printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
+						    ab->target_width, addr);
+			} else {
+				printed = scnprintf(bf, sizeof(bf), "%*s  ",
+						    ab->addr_width, " ");
+			}
+		}
+
+		if (change_color)
+			color = ui_browser__set_color(browser, HE_COLORSET_ADDR);
+		slsmg_write_nstring(bf, printed);
+		if (change_color)
+			ui_browser__set_color(browser, color);
+		if (dl->ins && dl->ins->ops->scnprintf) {
+			if (ins__is_jump(dl->ins)) {
+				bool fwd = dl->ops.target.offset > (u64)dl->offset;
+
+				ui_browser__write_graph(browser, fwd ? SLSMG_DARROW_CHAR :
+								    SLSMG_UARROW_CHAR);
+				SLsmg_write_char(' ');
+			} else if (ins__is_call(dl->ins)) {
+				ui_browser__write_graph(browser, SLSMG_RARROW_CHAR);
+				SLsmg_write_char(' ');
+			} else {
+				slsmg_write_nstring(" ", 2);
+			}
+		} else {
+			if (strcmp(dl->name, "retq")) {
+				slsmg_write_nstring(" ", 2);
+			} else {
+				ui_browser__write_graph(browser, SLSMG_LARROW_CHAR);
+				SLsmg_write_char(' ');
+			}
+		}
+
+		disasm_line__scnprintf(dl, bf, sizeof(bf), !annotate_browser__opts.use_offset);
+		slsmg_write_nstring(bf, width - pcnt_width - 3 - printed);
+	}
+
+	if (current_entry)
+		ab->selection = dl;
+}
+
+static bool disasm_line__is_valid_jump(struct disasm_line *dl, struct symbol *sym)
+{
+	if (!dl || !dl->ins || !ins__is_jump(dl->ins)
+	    || !disasm_line__has_offset(dl)
+	    || dl->ops.target.offset >= symbol__size(sym))
+		return false;
+
+	return true;
+}
+
+static void annotate_browser__draw_current_jump(struct ui_browser *browser)
+{
+	struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
+	struct disasm_line *cursor = ab->selection, *target;
+	struct browser_disasm_line *btarget, *bcursor;
+	unsigned int from, to;
+	struct map_symbol *ms = ab->b.priv;
+	struct symbol *sym = ms->sym;
+	u8 pcnt_width = 7;
+
+	/* PLT symbols contain external offsets */
+	if (strstr(sym->name, "@plt"))
+		return;
+
+	if (!disasm_line__is_valid_jump(cursor, sym))
+		return;
+
+	target = ab->offsets[cursor->ops.target.offset];
+	if (!target)
+		return;
+
+	bcursor = disasm_line__browser(cursor);
+	btarget = disasm_line__browser(target);
+
+	if (annotate_browser__opts.hide_src_code) {
+		from = bcursor->idx_asm;
+		to = btarget->idx_asm;
+	} else {
+		from = (u64)bcursor->idx;
+		to = (u64)btarget->idx;
+	}
+
+	pcnt_width *= ab->nr_events;
+
+	ui_browser__set_color(browser, HE_COLORSET_CODE);
+	__ui_browser__line_arrow(browser, pcnt_width + 2 + ab->addr_width,
+				 from, to);
+}
+
+static unsigned int annotate_browser__refresh(struct ui_browser *browser)
+{
+	struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
+	int ret = ui_browser__list_head_refresh(browser);
+	int pcnt_width;
+
+	pcnt_width = 7 * ab->nr_events;
+
+	if (annotate_browser__opts.jump_arrows)
+		annotate_browser__draw_current_jump(browser);
+
+	ui_browser__set_color(browser, HE_COLORSET_NORMAL);
+	__ui_browser__vline(browser, pcnt_width, 0, browser->height - 1);
+	return ret;
+}
+
+static int disasm__cmp(struct browser_disasm_line *a,
+		       struct browser_disasm_line *b, int nr_pcnt)
+{
+	int i;
+
+	for (i = 0; i < nr_pcnt; i++) {
+		if (a->percent[i] == b->percent[i])
+			continue;
+		return a->percent[i] < b->percent[i];
+	}
+	return 0;
+}
+
+static void disasm_rb_tree__insert(struct rb_root *root, struct browser_disasm_line *bdl,
+				   int nr_events)
+{
+	struct rb_node **p = &root->rb_node;
+	struct rb_node *parent = NULL;
+	struct browser_disasm_line *l;
+
+	while (*p != NULL) {
+		parent = *p;
+		l = rb_entry(parent, struct browser_disasm_line, rb_node);
+
+		if (disasm__cmp(bdl, l, nr_events))
+			p = &(*p)->rb_left;
+		else
+			p = &(*p)->rb_right;
+	}
+	rb_link_node(&bdl->rb_node, parent, p);
+	rb_insert_color(&bdl->rb_node, root);
+}
+
+static void annotate_browser__set_top(struct annotate_browser *browser,
+				      struct disasm_line *pos, u32 idx)
+{
+	unsigned back;
+
+	ui_browser__refresh_dimensions(&browser->b);
+	back = browser->b.height / 2;
+	browser->b.top_idx = browser->b.index = idx;
+
+	while (browser->b.top_idx != 0 && back != 0) {
+		pos = list_entry(pos->node.prev, struct disasm_line, node);
+
+		if (disasm_line__filter(&browser->b, &pos->node))
+			continue;
+
+		--browser->b.top_idx;
+		--back;
+	}
+
+	browser->b.top = pos;
+	browser->b.navkeypressed = true;
+}
+
+static void annotate_browser__set_rb_top(struct annotate_browser *browser,
+					 struct rb_node *nd)
+{
+	struct browser_disasm_line *bpos;
+	struct disasm_line *pos;
+	u32 idx;
+
+	bpos = rb_entry(nd, struct browser_disasm_line, rb_node);
+	pos = ((struct disasm_line *)bpos) - 1;
+	idx = bpos->idx;
+	if (annotate_browser__opts.hide_src_code)
+		idx = bpos->idx_asm;
+	annotate_browser__set_top(browser, pos, idx);
+	browser->curr_hot = nd;
+}
+
+static void annotate_browser__calc_percent(struct annotate_browser *browser,
+					   struct perf_evsel *evsel)
+{
+	struct map_symbol *ms = browser->b.priv;
+	struct symbol *sym = ms->sym;
+	struct annotation *notes = symbol__annotation(sym);
+	struct disasm_line *pos, *next;
+	s64 len = symbol__size(sym);
+
+	browser->entries = RB_ROOT;
+
+	pthread_mutex_lock(&notes->lock);
+
+	list_for_each_entry(pos, &notes->src->source, node) {
+		struct browser_disasm_line *bpos = disasm_line__browser(pos);
+		const char *path = NULL;
+		double max_percent = 0.0;
+		int i;
+
+		if (pos->offset == -1) {
+			RB_CLEAR_NODE(&bpos->rb_node);
+			continue;
+		}
+
+		next = disasm__get_next_ip_line(&notes->src->source, pos);
+
+		for (i = 0; i < browser->nr_events; i++) {
+			bpos->percent[i] = disasm__calc_percent(notes,
+						evsel->idx + i,
+						pos->offset,
+						next ? next->offset : len,
+					        &path);
+
+			if (max_percent < bpos->percent[i])
+				max_percent = bpos->percent[i];
+		}
+
+		if (max_percent < 0.01) {
+			RB_CLEAR_NODE(&bpos->rb_node);
+			continue;
+		}
+		disasm_rb_tree__insert(&browser->entries, bpos,
+				       browser->nr_events);
+	}
+	pthread_mutex_unlock(&notes->lock);
+
+	browser->curr_hot = rb_last(&browser->entries);
+}
+
+static bool annotate_browser__toggle_source(struct annotate_browser *browser)
+{
+	struct disasm_line *dl;
+	struct browser_disasm_line *bdl;
+	off_t offset = browser->b.index - browser->b.top_idx;
+
+	browser->b.seek(&browser->b, offset, SEEK_CUR);
+	dl = list_entry(browser->b.top, struct disasm_line, node);
+	bdl = disasm_line__browser(dl);
+
+	if (annotate_browser__opts.hide_src_code) {
+		if (bdl->idx_asm < offset)
+			offset = bdl->idx;
+
+		browser->b.nr_entries = browser->nr_entries;
+		annotate_browser__opts.hide_src_code = false;
+		browser->b.seek(&browser->b, -offset, SEEK_CUR);
+		browser->b.top_idx = bdl->idx - offset;
+		browser->b.index = bdl->idx;
+	} else {
+		if (bdl->idx_asm < 0) {
+			ui_helpline__puts("Only available for assembly lines.");
+			browser->b.seek(&browser->b, -offset, SEEK_CUR);
+			return false;
+		}
+
+		if (bdl->idx_asm < offset)
+			offset = bdl->idx_asm;
+
+		browser->b.nr_entries = browser->nr_asm_entries;
+		annotate_browser__opts.hide_src_code = true;
+		browser->b.seek(&browser->b, -offset, SEEK_CUR);
+		browser->b.top_idx = bdl->idx_asm - offset;
+		browser->b.index = bdl->idx_asm;
+	}
+
+	return true;
+}
+
+static void annotate_browser__init_asm_mode(struct annotate_browser *browser)
+{
+	ui_browser__reset_index(&browser->b);
+	browser->b.nr_entries = browser->nr_asm_entries;
+}
+
+#define SYM_TITLE_MAX_SIZE (PATH_MAX + 64)
+
+static int sym_title(struct symbol *sym, struct map *map, char *title,
+		     size_t sz)
+{
+	return snprintf(title, sz, "%s  %s", sym->name, map->dso->long_name);
+}
+
+static bool annotate_browser__callq(struct annotate_browser *browser,
+				    struct perf_evsel *evsel,
+				    struct hist_browser_timer *hbt)
+{
+	struct map_symbol *ms = browser->b.priv;
+	struct disasm_line *dl = browser->selection;
+	struct annotation *notes;
+	struct addr_map_symbol target = {
+		.map = ms->map,
+		.addr = map__objdump_2mem(ms->map, dl->ops.target.addr),
+	};
+	char title[SYM_TITLE_MAX_SIZE];
+
+	if (!ins__is_call(dl->ins))
+		return false;
+
+	if (map_groups__find_ams(&target, NULL) ||
+	    map__rip_2objdump(target.map, target.map->map_ip(target.map,
+							     target.addr)) !=
+	    dl->ops.target.addr) {
+		ui_helpline__puts("The called function was not found.");
+		return true;
+	}
+
+	notes = symbol__annotation(target.sym);
+	pthread_mutex_lock(&notes->lock);
+
+	if (notes->src == NULL && symbol__alloc_hist(target.sym) < 0) {
+		pthread_mutex_unlock(&notes->lock);
+		ui__warning("Not enough memory for annotating '%s' symbol!\n",
+			    target.sym->name);
+		return true;
+	}
+
+	pthread_mutex_unlock(&notes->lock);
+	symbol__tui_annotate(target.sym, target.map, evsel, hbt);
+	sym_title(ms->sym, ms->map, title, sizeof(title));
+	ui_browser__show_title(&browser->b, title);
+	return true;
+}
+
+static
+struct disasm_line *annotate_browser__find_offset(struct annotate_browser *browser,
+					  s64 offset, s64 *idx)
+{
+	struct map_symbol *ms = browser->b.priv;
+	struct symbol *sym = ms->sym;
+	struct annotation *notes = symbol__annotation(sym);
+	struct disasm_line *pos;
+
+	*idx = 0;
+	list_for_each_entry(pos, &notes->src->source, node) {
+		if (pos->offset == offset)
+			return pos;
+		if (!disasm_line__filter(&browser->b, &pos->node))
+			++*idx;
+	}
+
+	return NULL;
+}
+
+static bool annotate_browser__jump(struct annotate_browser *browser)
+{
+	struct disasm_line *dl = browser->selection;
+	s64 idx;
+
+	if (!ins__is_jump(dl->ins))
+		return false;
+
+	dl = annotate_browser__find_offset(browser, dl->ops.target.offset, &idx);
+	if (dl == NULL) {
+		ui_helpline__puts("Invalid jump offset");
+		return true;
+	}
+
+	annotate_browser__set_top(browser, dl, idx);
+
+	return true;
+}
+
+static
+struct disasm_line *annotate_browser__find_string(struct annotate_browser *browser,
+					  char *s, s64 *idx)
+{
+	struct map_symbol *ms = browser->b.priv;
+	struct symbol *sym = ms->sym;
+	struct annotation *notes = symbol__annotation(sym);
+	struct disasm_line *pos = browser->selection;
+
+	*idx = browser->b.index;
+	list_for_each_entry_continue(pos, &notes->src->source, node) {
+		if (disasm_line__filter(&browser->b, &pos->node))
+			continue;
+
+		++*idx;
+
+		if (pos->line && strstr(pos->line, s) != NULL)
+			return pos;
+	}
+
+	return NULL;
+}
+
+static bool __annotate_browser__search(struct annotate_browser *browser)
+{
+	struct disasm_line *dl;
+	s64 idx;
+
+	dl = annotate_browser__find_string(browser, browser->search_bf, &idx);
+	if (dl == NULL) {
+		ui_helpline__puts("String not found!");
+		return false;
+	}
+
+	annotate_browser__set_top(browser, dl, idx);
+	browser->searching_backwards = false;
+	return true;
+}
+
+static
+struct disasm_line *annotate_browser__find_string_reverse(struct annotate_browser *browser,
+						  char *s, s64 *idx)
+{
+	struct map_symbol *ms = browser->b.priv;
+	struct symbol *sym = ms->sym;
+	struct annotation *notes = symbol__annotation(sym);
+	struct disasm_line *pos = browser->selection;
+
+	*idx = browser->b.index;
+	list_for_each_entry_continue_reverse(pos, &notes->src->source, node) {
+		if (disasm_line__filter(&browser->b, &pos->node))
+			continue;
+
+		--*idx;
+
+		if (pos->line && strstr(pos->line, s) != NULL)
+			return pos;
+	}
+
+	return NULL;
+}
+
+static bool __annotate_browser__search_reverse(struct annotate_browser *browser)
+{
+	struct disasm_line *dl;
+	s64 idx;
+
+	dl = annotate_browser__find_string_reverse(browser, browser->search_bf, &idx);
+	if (dl == NULL) {
+		ui_helpline__puts("String not found!");
+		return false;
+	}
+
+	annotate_browser__set_top(browser, dl, idx);
+	browser->searching_backwards = true;
+	return true;
+}
+
+static bool annotate_browser__search_window(struct annotate_browser *browser,
+					    int delay_secs)
+{
+	if (ui_browser__input_window("Search", "String: ", browser->search_bf,
+				     "ENTER: OK, ESC: Cancel",
+				     delay_secs * 2) != K_ENTER ||
+	    !*browser->search_bf)
+		return false;
+
+	return true;
+}
+
+static bool annotate_browser__search(struct annotate_browser *browser, int delay_secs)
+{
+	if (annotate_browser__search_window(browser, delay_secs))
+		return __annotate_browser__search(browser);
+
+	return false;
+}
+
+static bool annotate_browser__continue_search(struct annotate_browser *browser,
+					      int delay_secs)
+{
+	if (!*browser->search_bf)
+		return annotate_browser__search(browser, delay_secs);
+
+	return __annotate_browser__search(browser);
+}
+
+static bool annotate_browser__search_reverse(struct annotate_browser *browser,
+					   int delay_secs)
+{
+	if (annotate_browser__search_window(browser, delay_secs))
+		return __annotate_browser__search_reverse(browser);
+
+	return false;
+}
+
+static
+bool annotate_browser__continue_search_reverse(struct annotate_browser *browser,
+					       int delay_secs)
+{
+	if (!*browser->search_bf)
+		return annotate_browser__search_reverse(browser, delay_secs);
+
+	return __annotate_browser__search_reverse(browser);
+}
+
+static void annotate_browser__update_addr_width(struct annotate_browser *browser)
+{
+	if (annotate_browser__opts.use_offset)
+		browser->target_width = browser->min_addr_width;
+	else
+		browser->target_width = browser->max_addr_width;
+
+	browser->addr_width = browser->target_width;
+
+	if (annotate_browser__opts.show_nr_jumps)
+		browser->addr_width += browser->jumps_width + 1;
+}
+
+static int annotate_browser__run(struct annotate_browser *browser,
+				 struct perf_evsel *evsel,
+				 struct hist_browser_timer *hbt)
+{
+	struct rb_node *nd = NULL;
+	struct map_symbol *ms = browser->b.priv;
+	struct symbol *sym = ms->sym;
+	const char *help = "Press 'h' for help on key bindings";
+	int delay_secs = hbt ? hbt->refresh : 0;
+	int key;
+	char title[SYM_TITLE_MAX_SIZE];
+
+	sym_title(sym, ms->map, title, sizeof(title));
+	if (ui_browser__show(&browser->b, title, help) < 0)
+		return -1;
+
+	annotate_browser__calc_percent(browser, evsel);
+
+	if (browser->curr_hot) {
+		annotate_browser__set_rb_top(browser, browser->curr_hot);
+		browser->b.navkeypressed = false;
+	}
+
+	nd = browser->curr_hot;
+
+	while (1) {
+		key = ui_browser__run(&browser->b, delay_secs);
+
+		if (delay_secs != 0) {
+			annotate_browser__calc_percent(browser, evsel);
+			/*
+			 * 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 (hbt)
+				hbt->timer(hbt->arg);
+
+			if (delay_secs != 0)
+				symbol__annotate_decay_histogram(sym, evsel->idx);
+			continue;
+		case K_TAB:
+			if (nd != NULL) {
+				nd = rb_prev(nd);
+				if (nd == NULL)
+					nd = rb_last(&browser->entries);
+			} else
+				nd = browser->curr_hot;
+			break;
+		case K_UNTAB:
+			if (nd != NULL)
+				nd = rb_next(nd);
+				if (nd == NULL)
+					nd = rb_first(&browser->entries);
+			else
+				nd = browser->curr_hot;
+			break;
+		case K_F1:
+		case 'h':
+			ui_browser__help_window(&browser->b,
+		"UP/DOWN/PGUP\n"
+		"PGDN/SPACE    Navigate\n"
+		"q/ESC/CTRL+C  Exit\n\n"
+		"->            Go to target\n"
+		"<-            Exit\n"
+		"H             Cycle thru hottest instructions\n"
+		"j             Toggle showing jump to target arrows\n"
+		"J             Toggle showing number of jump sources on targets\n"
+		"n             Search next string\n"
+		"o             Toggle disassembler output/simplified view\n"
+		"s             Toggle source code view\n"
+		"/             Search string\n"
+		"k             Toggle line numbers\n"
+		"r             Run available scripts\n"
+		"?             Search string backwards\n");
+			continue;
+		case 'r':
+			{
+				script_browse(NULL);
+				continue;
+			}
+		case 'k':
+			annotate_browser__opts.show_linenr =
+				!annotate_browser__opts.show_linenr;
+			break;
+		case 'H':
+			nd = browser->curr_hot;
+			break;
+		case 's':
+			if (annotate_browser__toggle_source(browser))
+				ui_helpline__puts(help);
+			continue;
+		case 'o':
+			annotate_browser__opts.use_offset = !annotate_browser__opts.use_offset;
+			annotate_browser__update_addr_width(browser);
+			continue;
+		case 'j':
+			annotate_browser__opts.jump_arrows = !annotate_browser__opts.jump_arrows;
+			continue;
+		case 'J':
+			annotate_browser__opts.show_nr_jumps = !annotate_browser__opts.show_nr_jumps;
+			annotate_browser__update_addr_width(browser);
+			continue;
+		case '/':
+			if (annotate_browser__search(browser, delay_secs)) {
+show_help:
+				ui_helpline__puts(help);
+			}
+			continue;
+		case 'n':
+			if (browser->searching_backwards ?
+			    annotate_browser__continue_search_reverse(browser, delay_secs) :
+			    annotate_browser__continue_search(browser, delay_secs))
+				goto show_help;
+			continue;
+		case '?':
+			if (annotate_browser__search_reverse(browser, delay_secs))
+				goto show_help;
+			continue;
+		case 'D': {
+			static int seq;
+			ui_helpline__pop();
+			ui_helpline__fpush("%d: nr_ent=%d, height=%d, idx=%d, top_idx=%d, nr_asm_entries=%d",
+					   seq++, browser->b.nr_entries,
+					   browser->b.height,
+					   browser->b.index,
+					   browser->b.top_idx,
+					   browser->nr_asm_entries);
+		}
+			continue;
+		case K_ENTER:
+		case K_RIGHT:
+			if (browser->selection == NULL)
+				ui_helpline__puts("Huh? No selection. Report to linux-kernel@vger.kernel.org");
+			else if (browser->selection->offset == -1)
+				ui_helpline__puts("Actions are only available for assembly lines.");
+			else if (!browser->selection->ins) {
+				if (strcmp(browser->selection->name, "retq"))
+					goto show_sup_ins;
+				goto out;
+			} else if (!(annotate_browser__jump(browser) ||
+				     annotate_browser__callq(browser, evsel, hbt))) {
+show_sup_ins:
+				ui_helpline__puts("Actions are only available for 'callq', 'retq' & jump instructions.");
+			}
+			continue;
+		case K_LEFT:
+		case K_ESC:
+		case 'q':
+		case CTRL('c'):
+			goto out;
+		default:
+			continue;
+		}
+
+		if (nd != NULL)
+			annotate_browser__set_rb_top(browser, nd);
+	}
+out:
+	ui_browser__hide(&browser->b);
+	return key;
+}
+
+int map_symbol__tui_annotate(struct map_symbol *ms, struct perf_evsel *evsel,
+			     struct hist_browser_timer *hbt)
+{
+	return symbol__tui_annotate(ms->sym, ms->map, evsel, hbt);
+}
+
+int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
+			     struct hist_browser_timer *hbt)
+{
+	return map_symbol__tui_annotate(&he->ms, evsel, hbt);
+}
+
+static void annotate_browser__mark_jump_targets(struct annotate_browser *browser,
+						size_t size)
+{
+	u64 offset;
+	struct map_symbol *ms = browser->b.priv;
+	struct symbol *sym = ms->sym;
+
+	/* PLT symbols contain external offsets */
+	if (strstr(sym->name, "@plt"))
+		return;
+
+	for (offset = 0; offset < size; ++offset) {
+		struct disasm_line *dl = browser->offsets[offset], *dlt;
+		struct browser_disasm_line *bdlt;
+
+		if (!disasm_line__is_valid_jump(dl, sym))
+			continue;
+
+		dlt = browser->offsets[dl->ops.target.offset];
+		/*
+ 		 * FIXME: Oops, no jump target? Buggy disassembler? Or do we
+ 		 * have to adjust to the previous offset?
+ 		 */
+		if (dlt == NULL)
+			continue;
+
+		bdlt = disasm_line__browser(dlt);
+		if (++bdlt->jump_sources > browser->max_jump_sources)
+			browser->max_jump_sources = bdlt->jump_sources;
+
+		++browser->nr_jumps;
+	}
+}
+
+static inline int width_jumps(int n)
+{
+	if (n >= 100)
+		return 5;
+	if (n / 10)
+		return 2;
+	return 1;
+}
+
+int symbol__tui_annotate(struct symbol *sym, struct map *map,
+			 struct perf_evsel *evsel,
+			 struct hist_browser_timer *hbt)
+{
+	struct disasm_line *pos, *n;
+	struct annotation *notes;
+	size_t size;
+	struct map_symbol ms = {
+		.map = map,
+		.sym = sym,
+	};
+	struct annotate_browser browser = {
+		.b = {
+			.refresh = annotate_browser__refresh,
+			.seek	 = ui_browser__list_head_seek,
+			.write	 = annotate_browser__write,
+			.filter  = disasm_line__filter,
+			.priv	 = &ms,
+			.use_navkeypressed = true,
+		},
+	};
+	int ret = -1;
+	int nr_pcnt = 1;
+	size_t sizeof_bdl = sizeof(struct browser_disasm_line);
+
+	if (sym == NULL)
+		return -1;
+
+	size = symbol__size(sym);
+
+	if (map->dso->annotate_warned)
+		return -1;
+
+	browser.offsets = zalloc(size * sizeof(struct disasm_line *));
+	if (browser.offsets == NULL) {
+		ui__error("Not enough memory!");
+		return -1;
+	}
+
+	if (perf_evsel__is_group_event(evsel)) {
+		nr_pcnt = evsel->nr_members;
+		sizeof_bdl += sizeof(double) * (nr_pcnt - 1);
+	}
+
+	if (symbol__annotate(sym, map, sizeof_bdl) < 0) {
+		ui__error("%s", ui_helpline__last_msg);
+		goto out_free_offsets;
+	}
+
+	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 browser_disasm_line *bpos;
+		size_t line_len = strlen(pos->line);
+
+		if (browser.b.width < line_len)
+			browser.b.width = line_len;
+		bpos = disasm_line__browser(pos);
+		bpos->idx = browser.nr_entries++;
+		if (pos->offset != -1) {
+			bpos->idx_asm = browser.nr_asm_entries++;
+			/*
+			 * FIXME: short term bandaid to cope with assembly
+			 * routines that comes with labels in the same column
+			 * as the address in objdump, sigh.
+			 *
+			 * E.g. copy_user_generic_unrolled
+ 			 */
+			if (pos->offset < (s64)size)
+				browser.offsets[pos->offset] = pos;
+		} else
+			bpos->idx_asm = -1;
+	}
+
+	annotate_browser__mark_jump_targets(&browser, size);
+
+	browser.addr_width = browser.target_width = browser.min_addr_width = hex_width(size);
+	browser.max_addr_width = hex_width(sym->end);
+	browser.jumps_width = width_jumps(browser.max_jump_sources);
+	browser.nr_events = nr_pcnt;
+	browser.b.nr_entries = browser.nr_entries;
+	browser.b.entries = &notes->src->source,
+	browser.b.width += 18; /* Percentage */
+
+	if (annotate_browser__opts.hide_src_code)
+		annotate_browser__init_asm_mode(&browser);
+
+	annotate_browser__update_addr_width(&browser);
+
+	ret = annotate_browser__run(&browser, evsel, hbt);
+	list_for_each_entry_safe(pos, n, &notes->src->source, node) {
+		list_del(&pos->node);
+		disasm_line__free(pos);
+	}
+
+out_free_offsets:
+	free(browser.offsets);
+	return ret;
+}
+
+#define ANNOTATE_CFG(n) \
+	{ .name = #n, .value = &annotate_browser__opts.n, }
+
+/*
+ * Keep the entries sorted, they are bsearch'ed
+ */
+static struct annotate_config {
+	const char *name;
+	bool *value;
+} annotate__configs[] = {
+	ANNOTATE_CFG(hide_src_code),
+	ANNOTATE_CFG(jump_arrows),
+	ANNOTATE_CFG(show_linenr),
+	ANNOTATE_CFG(show_nr_jumps),
+	ANNOTATE_CFG(use_offset),
+};
+
+#undef ANNOTATE_CFG
+
+static int annotate_config__cmp(const void *name, const void *cfgp)
+{
+	const struct annotate_config *cfg = cfgp;
+
+	return strcmp(name, cfg->name);
+}
+
+static int annotate__config(const char *var, const char *value,
+			    void *data __maybe_unused)
+{
+	struct annotate_config *cfg;
+	const char *name;
+
+	if (prefixcmp(var, "annotate.") != 0)
+		return 0;
+
+	name = var + 9;
+	cfg = bsearch(name, annotate__configs, ARRAY_SIZE(annotate__configs),
+		      sizeof(struct annotate_config), annotate_config__cmp);
+
+	if (cfg == NULL)
+		return -1;
+
+	*cfg->value = perf_config_bool(name, value);
+	return 0;
+}
+
+void annotate_browser__init(void)
+{
+	perf_config(annotate__config, NULL);
+}