py: Initialise loaded_module map in rt_init.

STM port crashes without this re-init.  There should not be any state in
the core py/ code that relies on pre-initialised data.

1 files changed, 8 insertions, 0 deletions

diff --git a/py/runtime.c b/py/runtime.c
index 7937a65b83..d6b2bf7826 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -34,6 +34,7 @@
 static mp_map_t *map_locals;
 static mp_map_t *map_globals;
 static mp_map_t map_builtins;
+static mp_map_t map_loaded_modules; // TODO: expose as sys.modules
 
 typedef enum {
     MP_CODE_NONE,
@@ -83,6 +84,9 @@ void rt_init(void) {
     // init built-in hash table
     mp_map_init(&map_builtins, 3);
 
+    // init loaded modules table
+    mp_map_init(&map_loaded_modules, 3);
+
     // built-in exceptions (TODO, make these proper classes)
     mp_map_add_qstr(&map_builtins, MP_QSTR_AttributeError, mp_obj_new_exception(MP_QSTR_AttributeError));
     mp_map_add_qstr(&map_builtins, MP_QSTR_IndexError, mp_obj_new_exception(MP_QSTR_IndexError));
@@ -953,6 +957,10 @@ void rt_globals_set(mp_map_t *m) {
     map_globals = m;
 }
 
+mp_map_t *rt_loaded_modules_get(void) {
+    return &map_loaded_modules;
+}
+
 // these must correspond to the respective enum
 void *const rt_fun_table[RT_F_NUMBER_OF] = {
     rt_load_const_dec,