perf symbols: Add dso__find_symbol_nocache()

Symbols should not be cached when there are more symbols still to add.

Add dso__find_symbol_nocache() to facilitate that.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20230120123456.12449-5-adrian.hunter@intel.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/symbol.c

@@ -556,6 +556,11 @@ struct symbol *dso__find_symbol(struct dso *dso, u64 addr)
 	return dso->last_find_result.symbol;
 }
 
+struct symbol *dso__find_symbol_nocache(struct dso *dso, u64 addr)
+{
+	return symbols__find(&dso->symbols, addr);
+}
+
 struct symbol *dso__first_symbol(struct dso *dso)
 {
 	return symbols__first(&dso->symbols);

tools/perf/util/symbol.h

@@ -148,6 +148,7 @@ void dso__delete_symbol(struct dso *dso,
 			struct symbol *sym);
 
 struct symbol *dso__find_symbol(struct dso *dso, u64 addr);
+struct symbol *dso__find_symbol_nocache(struct dso *dso, u64 addr);
 struct symbol *dso__find_symbol_by_name(struct dso *dso, const char *name);
 
 struct symbol *symbol__next_by_name(struct symbol *sym);