tools/mpy-tool.py: List frozen modules in MICROPY_FROZEN_LIST_ITEM.

Signed-off-by: Damien George <damien@micropython.org>

tools/mpy-tool.py

@@ -916,6 +916,17 @@ def freeze_mpy(base_qstrs, raw_codes):
         print("    &raw_code_%s," % rc.escaped_name)
     print("};")
 
+    # If a port defines MICROPY_FROZEN_LIST_ITEM then list all modules wrapped in that macro.
+    print("#ifdef MICROPY_FROZEN_LIST_ITEM")
+    for rc in raw_codes:
+        module_name = rc.source_file.str
+        if module_name.endswith("/__init__.py"):
+            short_name = module_name[: -len("/__init__.py")]
+        else:
+            short_name = module_name[: -len(".py")]
+        print('MICROPY_FROZEN_LIST_ITEM("%s", "%s")' % (short_name, module_name))
+    print("#endif")
+
 
 def merge_mpy(raw_codes, output_file):
     assert len(raw_codes) <= 31  # so var-uints all fit in 1 byte