Add gc_free function to force a block to be freed.

1 files changed, 2 insertions, 1 deletions

diff --git a/py/gc.h b/py/gc.h
index 4fe87b8308..d5b5fcc91c 100644
--- a/py/gc.h
+++ b/py/gc.h
@@ -4,7 +4,8 @@ void gc_collect_root(void **ptrs, machine_uint_t len);
 void gc_collect_end();
 void gc_collect();
 void *gc_alloc(machine_uint_t n_bytes);
-machine_uint_t gc_nbytes(void *ptr_in);
+void gc_free(void *ptr);
+machine_uint_t gc_nbytes(void *ptr);
 void *gc_realloc(void *ptr, machine_uint_t n_bytes);
 
 typedef struct _gc_info_t {