diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 19c9c558454f671684938147b1061635b3f188f0..aecff69a510df064975e8b4d25d0aba0e64879c1 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -345,6 +345,16 @@ static struct symbol *symbols__first(struct rb_root *symbols) return NULL; } +static struct symbol *symbols__last(struct rb_root *symbols) +{ + struct rb_node *n = rb_last(symbols); + + if (n) + return rb_entry(n, struct symbol, rb_node); + + return NULL; +} + static struct symbol *symbols__next(struct symbol *sym) { struct rb_node *n = rb_next(&sym->rb_node); @@ -466,6 +476,11 @@ struct symbol *dso__first_symbol(struct dso *dso, enum map_type type) return symbols__first(&dso->symbols[type]); } +struct symbol *dso__last_symbol(struct dso *dso, enum map_type type) +{ + return symbols__last(&dso->symbols[type]); +} + struct symbol *dso__next_symbol(struct symbol *sym) { return symbols__next(sym); diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 0dacfb7d5b67b0b39bd481342e09bed3600ef7d9..d964844eb3141fa1b94b1a39c8db05557b4f50d6 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -259,6 +259,7 @@ struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, struct symbol *symbol__next_by_name(struct symbol *sym); struct symbol *dso__first_symbol(struct dso *dso, enum map_type type); +struct symbol *dso__last_symbol(struct dso *dso, enum map_type type); struct symbol *dso__next_symbol(struct symbol *sym); enum dso_type dso__type_fd(int fd);