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>
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index c1e6774..ffdd3fe 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -235,9 +235,7 @@
session.psession = perf_session__new(NULL, O_WRONLY, false);
if (session.psession == NULL)
die("Failed to init perf_session.");
- session.kmap = map_groups__find_by_name(&session.psession->kmaps,
- MAP__FUNCTION,
- "[kernel.kallsyms]");
+ session.kmap = session.psession->vmlinux_maps[MAP__FUNCTION];
if (!session.kmap)
die("Could not find kernel map.\n");