perf tools: Introduce struct map_symbol

That will be in both struct hist_entry and struct
callchain_list, so that the TUI can store a pointer to the pair
(map, symbol) in the trees where hist_entries and
callchain_lists are present, to allow precise annotation instead
of looking for the first symbol with the selected name.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1269459619-982-4-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 5 insertions, 3 deletions

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 5843a9c572ad..4eefb52a8661 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -22,8 +22,10 @@ struct hist_entry *__perf_session__add_hist_entry(struct rb_root *hists,
         struct hist_entry *he;
         struct hist_entry entry = {
                 .thread = al->thread,
-                .map    = al->map,
-                .sym    = al->sym,
+                .ms = {
+                        .map    = al->map,
+                        .sym    = al->sym,
+                },
                 .ip     = al->addr,
                 .level  = al->level,
                 .count  = count,
@@ -654,7 +656,7 @@ print_entries:
                 if (symbol_conf.use_callchain)
                         ret += hist_entry__fprintf_callchain(h, fp, session_total);
 
-                if (h->map == NULL && verbose > 1) {
+                if (h->ms.map == NULL && verbose > 1) {
                         __map_groups__fprintf_maps(&h->thread->mg,
                                                    MAP__FUNCTION, fp);
                         fprintf(fp, "%.10s end\n", graph_dotted_line);