Commit-ID:  4e987712740a3634c19a6fedaf12577b26775dc5
Gitweb:     http://git.kernel.org/tip/4e987712740a3634c19a6fedaf12577b26775dc5
Author:     Arnaldo Carvalho de Melo <a...@redhat.com>
AuthorDate: Mon, 14 Oct 2013 13:43:38 +0300
Committer:  Arnaldo Carvalho de Melo <a...@redhat.com>
CommitDate: Mon, 14 Oct 2013 10:29:02 -0300

perf symbols: Add map_groups__find_ams()

Add a function to find a symbol using an ip that might be on a different
map.

Cc: David Ahern <dsah...@gmail.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Mike Galbraith <efa...@gmx.de>
Cc: Namhyung Kim <namhy...@gmail.com>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Stephane Eranian <eran...@google.com>
Link: 
http://lkml.kernel.org/r/1381747424-3557-2-git-send-email-adrian.hun...@intel.com
Signed-off-by: Adrian Hunter <adrian.hun...@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/util/map.c | 17 +++++++++++++++++
 tools/perf/util/map.h |  4 ++++
 2 files changed, 21 insertions(+)

diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 17ee458..9dea404 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -371,6 +371,23 @@ struct symbol *map_groups__find_symbol_by_name(struct 
map_groups *mg,
        return NULL;
 }
 
+int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter)
+{
+       if (ams->addr < ams->map->start || ams->addr > ams->map->end) {
+               if (ams->map->groups == NULL)
+                       return -1;
+               ams->map = map_groups__find(ams->map->groups, ams->map->type,
+                                           ams->addr);
+               if (ams->map == NULL)
+                       return -1;
+       }
+
+       ams->al_addr = ams->map->map_ip(ams->map, ams->addr);
+       ams->sym = map__find_symbol(ams->map, ams->al_addr, filter);
+
+       return ams->sym ? 0 : -1;
+}
+
 size_t __map_groups__fprintf_maps(struct map_groups *mg,
                                  enum map_type type, int verbose, FILE *fp)
 {
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 4886ca2..0359b4a 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -167,6 +167,10 @@ struct symbol *map_groups__find_symbol_by_name(struct 
map_groups *mg,
                                               struct map **mapp,
                                               symbol_filter_t filter);
 
+struct addr_map_symbol;
+
+int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter);
+
 static inline
 struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
                                                 const char *name, struct map 
**mapp,
--
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