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@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-26-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 20 insertions, 37 deletions

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 613682432940..5d99429a03bc 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];