diff --git a/src/rvprof_internal.h b/src/rvprof_internal.h
index 1fad7a4..8d5c39f 100644
--- a/src/rvprof_internal.h
+++ b/src/rvprof_internal.h
@@ -174,6 +174,21 @@ void rvprof_stats_add_caller_to_function(int func_id, const char* caller);
 // output 
 rvprof_error_t rvprof_output_generate_report(void);
 
+// utilities
+char* rvprof_utils_get_program_name(void);
+char* rvprof_utils_generate_output_filename(void);
+int rvprof_utils_is_main_function(const char* func_name);
+
+// function stats
+int rvprof_stats_find_or_create_function(const char* name, const char* caller);
+int rvprof_stats_get_or_create_stack_id(void);
+void rvprof_stats_add_stack_id_to_function(int func_id, int stack_id);
+void rvprof_stats_add_caller_to_function(int func_id, const char* caller);
+
+// global context
+void rvprof_context_cleanup(void);
+
+
 #ifdef __cplusplus
 }
 #endif