perf symbols: Unexport kernel_map__functions

perf annotate was the only user, and it doesn't really need it.
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: <1259346563-12568-4-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

tools/perf/builtin-annotate.c

@@ -169,7 +169,6 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
 		level = '.';
 		map = thread__find_map(thread, ip);
 		if (map != NULL) {
-got_map:
 			ip = map->map_ip(map, ip);
 			sym = map__find_function(map, ip, symbol_filter);
 		} else {
@@ -183,10 +182,9 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
 			 * the "[vdso]" dso, but for now lets use the old
 			 * trick of looking in the whole kernel symbol list.
 			 */
-			if ((long long)ip < 0) {
-				map = kernel_map__functions;
-				goto got_map;
-			}
+			if ((long long)ip < 0)
+				sym = kernel_maps__find_function(ip, &map,
+								 symbol_filter);
 		}
 		dump_printf(" ...... dso: %s\n",
 			    map ? map->dso->long_name : "<not found>");

tools/perf/util/symbol.c

@@ -36,6 +36,7 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map,
 unsigned int symbol__priv_size;
 static int vmlinux_path__nr_entries;
 static char **vmlinux_path;
+static struct map *kernel_map__functions;
 
 static struct symbol_conf symbol_conf__defaults = {
 	.use_modules	  = true,
@@ -1164,8 +1165,6 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
 	return ret;
 }
 
-struct map *kernel_map__functions;
-
 static void kernel_maps__insert(struct map *map)
 {
 	maps__insert(&kernel_maps__functions, map);

tools/perf/util/symbol.h

@@ -105,6 +105,5 @@ size_t kernel_maps__fprintf(FILE *fp);
 int symbol__init(struct symbol_conf *conf);
 
 extern struct list_head dsos__user, dsos__kernel;
-extern struct map *kernel_map__functions;
 extern struct dso *vdso;
 #endif /* __PERF_SYMBOL */