perf session: Create kernel maps in the constructor
Removing one extra step needed in the tools that need this,
fixing a bug in 'perf probe' where this was not being done.
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: <1264633557-17597-4-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 1951e33..8e7c189 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -70,8 +70,17 @@
self->unknown_events = 0;
map_groups__init(&self->kmaps);
- if (mode == O_RDONLY && perf_session__open(self, force) < 0)
- goto out_delete;
+ if (mode == O_RDONLY) {
+ if (perf_session__open(self, force) < 0)
+ goto out_delete;
+ } else if (mode == O_WRONLY) {
+ /*
+ * In O_RDONLY mode this will be performed when reading the
+ * kernel MMAP event, in event__process_mmap().
+ */
+ if (perf_session__create_kernel_maps(self) < 0)
+ goto out_delete;
+ }
self->sample_type = perf_header__sample_type(&self->header);
out: