perf tools: Delay loading symtabs till we hit a map with it

So that we can have a quicker start on perf top and even
speedups in the other tools, as we can have maps with no hits,
so no need to load its symtabs.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1256773881-4191-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 1 deletions

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 2ae1177be40b..3064a05f0f52 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -106,10 +106,11 @@ struct symbol;
 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
 
 struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen,
-                     unsigned int sym_priv_size, symbol_filter_t filter);
+                     unsigned int sym_priv_size);
 struct map *map__clone(struct map *self);
 int map__overlap(struct map *l, struct map *r);
 size_t map__fprintf(struct map *self, FILE *fp);
+struct symbol *map__find_symbol(struct map *self, u64 ip, symbol_filter_t filter);
 
 int event__synthesize_thread(pid_t pid, int (*process)(event_t *event));
 void event__synthesize_threads(int (*process)(event_t *event));