perf session: Keep pointers to the vmlinux maps

So that tools such as 'perf probe' don't have to lookup
'[kernel.kallsyms]' but instead access them directly after
perf_session__create_kernel_maps or
map_groups__create_kernel_maps.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Masami Hiramatsu <mhiramat@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: <1262629169-22797-4-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 0 deletions

diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 77c5ee2993c2..8db37bbf0e62 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -18,6 +18,7 @@ struct perf_session {
         struct map_groups       kmaps;
         struct rb_root          threads;
         struct thread           *last_match;
+        struct map              *vmlinux_maps[MAP__NR_TYPES];
         struct events_stats     events_stats;
         unsigned long           event_total[PERF_RECORD_MAX];
         unsigned long           unknown_events;