core: log memory info if TREZOR_LOG_MEMORY env is set

core/src/trezor/utils.py

@@ -19,9 +19,11 @@ if __debug__:
 
         TEST = int(uos.getenv("TREZOR_TEST") or "0")
         SAVE_SCREEN = int(uos.getenv("TREZOR_SAVE_SCREEN") or "0")
+        LOG_MEMORY = int(uos.getenv("TREZOR_LOG_MEMORY") or "0")
     else:
         TEST = 0
         SAVE_SCREEN = 0
+        LOG_MEMORY = 0
 
 
 def unimport_begin():

core/src/trezor/workflow.py

@@ -18,6 +18,13 @@ def onclose(w):
     if not layouts and default_layout:
         startdefault(default_layout)
 
+    if __debug__:
+        import micropython
+        from trezor import utils
+
+        if utils.LOG_MEMORY:
+            micropython.mem_info()
+
 
 def closedefault():
     global default