perf unwind: Use find_map function in access_dso_mem

The find_map helper is already there, so let's use it.

Also we're going to introduce wider search in following patch, so it'll
be easier to make this change on single place.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Noel Grandin <noelgrandin@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1452158050-28061-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 5 insertions, 6 deletions

diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index 3c258a0e4092..f37859c04317 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -416,20 +416,19 @@ get_proc_name(unw_addr_space_t __maybe_unused as,
 static int access_dso_mem(struct unwind_info *ui, unw_word_t addr,
                           unw_word_t *data)
 {
-        struct addr_location al;
+        struct map *map;
         ssize_t size;
 
-        thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
-                              MAP__FUNCTION, addr, &al);
-        if (!al.map) {
+        map = find_map(addr, ui);
+        if (!map) {
                 pr_debug("unwind: no map for %lx\n", (unsigned long)addr);
                 return -1;
         }
 
-        if (!al.map->dso)
+        if (!map->dso)
                 return -1;
 
-        size = dso__data_read_addr(al.map->dso, al.map, ui->machine,
+        size = dso__data_read_addr(map->dso, map, ui->machine,
                                    addr, (u8 *) data, sizeof(*data));
 
         return !(size == sizeof(*data));