perf symbols: Make symbol_conf global

This simplifies a lot of functions, less stuff to be done by
tool writers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@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: <1260914682-29652-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 7e744f7..07ad25c 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -579,7 +579,7 @@
 		exit(-1);
 	}
 
-	symbol__init(0);
+	symbol__init();
 
 	setup_scripting();
 
@@ -588,7 +588,7 @@
 
 	setup_pager();
 
-	session = perf_session__new(input_name, O_RDONLY, 0, NULL);
+	session = perf_session__new(input_name, O_RDONLY, 0);
 	if (session == NULL)
 		return -ENOMEM;