[tip:perf/core] perf annotate browser: Use samples data from struct annotation_line

From: tip-bot for Jiri Olsa
Date: Sat Nov 18 2017 - 03:24:06 EST

Commit-ID: 3ab6db8d0f3b19b93a8de25e3b7ab5fdaac47679
Gitweb: https://git.kernel.org/tip/3ab6db8d0f3b19b93a8de25e3b7ab5fdaac47679
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Wed, 11 Oct 2017 17:01:48 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 16 Nov 2017 14:49:45 -0300

perf annotate browser: Use samples data from struct annotation_line

We now carry the data in 'struct annotation_line', so using it instead
of samples from 'struct browser_disasm_line' and removing it and its
setup.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20171011150158.11895-26-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/ui/browsers/annotate.c | 57 ++++++++++++++-------------------------
1 file changed, 20 insertions(+), 37 deletions(-)

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 6136824..5d99429 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -29,11 +29,6 @@ struct browser_disasm_line {
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
- */
- struct disasm_line_samples samples[1];
};

static struct annotate_browser_opt {
@@ -76,9 +71,7 @@ struct annotate_browser {

static inline struct browser_disasm_line *disasm_line__browser(struct disasm_line *dl)
{
- struct annotation_line *al = &dl->al;
-
- return (void *) al - al->privsize;
+ return (void *) dl - sizeof(struct browser_disasm_line);
}

static bool disasm_line__filter(struct ui_browser *browser __maybe_unused,
@@ -139,8 +132,8 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
bool show_title = false;

for (i = 0; i < ab->nr_events; i++) {
- if (bdl->samples[i].percent > percent_max)
- percent_max = bdl->samples[i].percent;
+ if (dl->al.samples[i].percent > percent_max)
+ percent_max = dl->al.samples[i].percent;
}

if ((row == 0) && (dl->al.offset == -1 || percent_max == 0.0)) {
@@ -154,17 +147,17 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
if (dl->al.offset != -1 && percent_max != 0.0) {
for (i = 0; i < ab->nr_events; i++) {
ui_browser__set_percent_color(browser,
- bdl->samples[i].percent,
+ dl->al.samples[i].percent,
current_entry);
if (annotate_browser__opts.show_total_period) {
ui_browser__printf(browser, "%11" PRIu64 " ",
- bdl->samples[i].he.period);
+ dl->al.samples[i].he.period);
} else if (annotate_browser__opts.show_nr_samples) {
ui_browser__printf(browser, "%6" PRIu64 " ",
- bdl->samples[i].he.nr_samples);
+ dl->al.samples[i].he.nr_samples);
} else {
ui_browser__printf(browser, "%6.2f ",
- bdl->samples[i].percent);
+ dl->al.samples[i].percent);
}
}
} else {
@@ -363,11 +356,9 @@ static unsigned int annotate_browser__refresh(struct ui_browser *browser)
return ret;
}

-static int disasm__cmp(struct disasm_line *da,
- struct disasm_line *db, int nr_pcnt)
+static int disasm__cmp(struct annotation_line *a,
+ struct annotation_line *b, int nr_pcnt)
{
- struct browser_disasm_line *a = disasm_line__browser(da);
- struct browser_disasm_line *b = disasm_line__browser(db);
int i;

for (i = 0; i < nr_pcnt; i++) {
@@ -378,24 +369,24 @@ static int disasm__cmp(struct disasm_line *da,
return 0;
}

-static void disasm_rb_tree__insert(struct rb_root *root, struct disasm_line *dl,
+static void disasm_rb_tree__insert(struct rb_root *root, struct annotation_line *al,
int nr_events)
{
struct rb_node **p = &root->rb_node;
struct rb_node *parent = NULL;
- struct disasm_line *l;
+ struct annotation_line *l;

while (*p != NULL) {
parent = *p;
- l = rb_entry(parent, struct disasm_line, al.rb_node);
+ l = rb_entry(parent, struct annotation_line, rb_node);

- if (disasm__cmp(dl, l, nr_events))
+ if (disasm__cmp(al, l, nr_events))
p = &(*p)->rb_left;
else
p = &(*p)->rb_right;
}
- rb_link_node(&dl->al.rb_node, parent, p);
- rb_insert_color(&dl->al.rb_node, root);
+ rb_link_node(&al->rb_node, parent, p);
+ rb_insert_color(&al->rb_node, root);
}

static void annotate_browser__set_top(struct annotate_browser *browser,
@@ -453,7 +444,6 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser,
symbol__calc_percent(sym, evsel);

list_for_each_entry(pos, &notes->src->source, al.node) {
- struct browser_disasm_line *bpos = disasm_line__browser(pos);
double max_percent = 0.0;
int i;

@@ -465,18 +455,15 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser,
for (i = 0; i < browser->nr_events; i++) {
struct annotation_data *sample = &pos->al.samples[i];

- bpos->samples[i].percent = sample->percent;
- bpos->samples[i].he = sample->he;
-
- if (max_percent < bpos->samples[i].percent)
- max_percent = bpos->samples[i].percent;
+ if (max_percent < sample->percent)
+ max_percent = sample->percent;
}

if (max_percent < 0.01 && pos->al.ipc == 0) {
RB_CLEAR_NODE(&pos->al.rb_node);
continue;
}
- disasm_rb_tree__insert(&browser->entries, pos,
+ disasm_rb_tree__insert(&browser->entries, &pos->al,
browser->nr_events);
}
pthread_mutex_unlock(&notes->lock);
@@ -1096,7 +1083,6 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
};
int ret = -1, err;
int nr_pcnt = 1;
- size_t sizeof_bdl = sizeof(struct browser_disasm_line);

if (sym == NULL)
return -1;
@@ -1112,14 +1098,11 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
return -1;
}

- if (perf_evsel__is_group_event(evsel)) {
+ if (perf_evsel__is_group_event(evsel))
nr_pcnt = evsel->nr_members;
- sizeof_bdl += sizeof(struct disasm_line_samples) *
- (nr_pcnt - 1);
- }

err = symbol__annotate(sym, map, evsel,
- sizeof_bdl, &browser.arch,
+ sizeof(struct browser_disasm_line), &browser.arch,
perf_evsel__env_cpuid(evsel));
if (err) {
char msg[BUFSIZ];