blob: 15633d6081332f0204acc978974ff6deec8d2375 [file] [log] [blame]
#include "../browser.h"
#include "../helpline.h"
#include "../libslang.h"
#include "../../annotate.h"
#include "../../hist.h"
#include "../../sort.h"
#include "../../symbol.h"
#include "../../annotate.h"
#include <pthread.h>
static void ui__error_window(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
newtWinMessagev((char *)"Error", (char *)"Ok", (char *)fmt, ap);
va_end(ap);
}
struct annotate_browser {
struct ui_browser b;
struct rb_root entries;
struct rb_node *curr_hot;
};
struct objdump_line_rb_node {
struct rb_node rb_node;
double percent;
u32 idx;
};
static inline
struct objdump_line_rb_node *objdump_line__rb(struct objdump_line *self)
{
return (struct objdump_line_rb_node *)(self + 1);
}
static void annotate_browser__write(struct ui_browser *self, void *entry, int row)
{
struct objdump_line *ol = rb_entry(entry, struct objdump_line, node);
bool current_entry = ui_browser__is_current_entry(self, row);
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);
if (!*ol->line)
slsmg_write_nstring(" ", width - 18);
else
slsmg_write_nstring(ol->line, width - 18);
if (!current_entry)
ui_browser__set_color(self, HE_COLORSET_CODE);
}
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 rb_node *nd)
{
struct objdump_line_rb_node *rbpos;
struct objdump_line *pos;
unsigned back;
ui_browser__refresh_dimensions(&self->b);
back = self->b.height / 2;
rbpos = rb_entry(nd, struct objdump_line_rb_node, rb_node);
pos = ((struct objdump_line *)rbpos) - 1;
self->b.top_idx = self->b.index = rbpos->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;
self->curr_hot = nd;
}
static void annotate_browser__calc_percent(struct annotate_browser *browser,
int evidx)
{
struct symbol *sym = browser->b.priv;
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 int annotate_browser__run(struct annotate_browser *self, int evidx,
int refresh)
{
struct rb_node *nd = NULL;
struct symbol *sym = self->b.priv;
/*
* RIGHT To allow builtin-annotate to cycle thru multiple symbols by
* examining the exit key for this function.
*/
int exit_keys[] = { 'H', NEWT_KEY_TAB, NEWT_KEY_UNTAB,
NEWT_KEY_RIGHT, 0 };
int key;
if (ui_browser__show(&self->b, sym->name,
"<-, -> or ESC: exit, TAB/shift+TAB: "
"cycle hottest lines, H: Hottest") < 0)
return -1;
ui_browser__add_exit_keys(&self->b, exit_keys);
annotate_browser__calc_percent(self, evidx);
if (self->curr_hot)
annotate_browser__set_top(self, self->curr_hot);
nd = self->curr_hot;
if (refresh != 0)
newtFormSetTimer(self->b.form, refresh);
while (1) {
key = ui_browser__run(&self->b);
if (refresh != 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 -1:
/*
* FIXME we need to check if it was
* es.reason == NEWT_EXIT_TIMER
*/
if (refresh != 0)
symbol__annotate_decay_histogram(sym, evidx);
continue;
case NEWT_KEY_TAB:
if (nd != NULL) {
nd = rb_prev(nd);
if (nd == NULL)
nd = rb_last(&self->entries);
} else
nd = self->curr_hot;
break;
case NEWT_KEY_UNTAB:
if (nd != NULL)
nd = rb_next(nd);
if (nd == NULL)
nd = rb_first(&self->entries);
else
nd = self->curr_hot;
break;
case 'H':
nd = self->curr_hot;
break;
default:
goto out;
}
if (nd != NULL)
annotate_browser__set_top(self, nd);
}
out:
ui_browser__hide(&self->b);
return key;
}
int hist_entry__tui_annotate(struct hist_entry *he, int evidx)
{
return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx, 0);
}
int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
int refresh)
{
struct objdump_line *pos, *n;
struct annotation *notes;
struct annotate_browser browser = {
.b = {
.refresh = ui_browser__list_head_refresh,
.seek = ui_browser__list_head_seek,
.write = annotate_browser__write,
.priv = sym,
},
};
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_window(ui_helpline__last_msg);
return -1;
}
ui_helpline__push("Press <- or ESC to exit");
notes = symbol__annotation(sym);
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.b.nr_entries++;
}
browser.b.entries = &notes->src->source,
browser.b.width += 18; /* Percentage */
ret = annotate_browser__run(&browser, evidx, refresh);
list_for_each_entry_safe(pos, n, &notes->src->source, node) {
list_del(&pos->node);
objdump_line__free(pos);
}
return ret;
}