perf symbols: Factor want_symtab out of dso__load_sym()

Only one callsite of dso__load_sym() uses the want_symtab functionality,
so place the logic at the callsite instead of within dso__load_sym().

This sets us up for removal of want_symtab completely once we keep
multiple elf handles (within symsrc's) around.

Setup for the later patch

"perf symbols: Use both runtime and debug images"

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: David Hansen <dave@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Matt Hellsley <matthltc@us.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1344637382-22789-15-git-send-email-cody@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c
index cc580c0..11c2c60 100644
--- a/tools/perf/util/symbol-minimal.c
+++ b/tools/perf/util/symbol-minimal.c
@@ -260,6 +260,11 @@
 	return -1;
 }
 
+bool symsrc__has_symtab(struct symsrc *ss __used)
+{
+	return false;
+}
+
 void symsrc__destroy(struct symsrc *ss)
 {
 	free(ss->name);
@@ -275,8 +280,7 @@
 }
 
 int dso__load_sym(struct dso *dso, struct map *map __used, struct symsrc *ss,
-		  symbol_filter_t filter __used, int kmodule __used,
-		  int want_symtab __used)
+		  symbol_filter_t filter __used, int kmodule __used)
 {
 	unsigned char *build_id[BUILD_ID_SIZE];