3 files changed, 7 insertions, 0 deletions
diff --git a/supervisor/port.h b/supervisor/port.h
index ad5b3cf32..ddb96bd52 100644
--- a/supervisor/port.h
+++ b/supervisor/port.h
@@ -69,6 +69,8 @@ uint32_t *port_heap_get_bottom(void);
 // Get heap top address
 uint32_t *port_heap_get_top(void);
 
+supervisor_allocation* port_fixed_heap(void);
+
 // Save and retrieve a word from memory that is preserved over reset. Used for safe mode.
 void port_set_saved_word(uint32_t);
 uint32_t port_get_saved_word(void);
diff --git a/supervisor/shared/safe_mode.c b/supervisor/shared/safe_mode.c
index 3275cc66f..29a0a6a4f 100644
--- a/supervisor/shared/safe_mode.c
+++ b/supervisor/shared/safe_mode.c
@@ -133,6 +133,10 @@ void print_safe_mode_message(safe_mode_t reason) {
                 serial_write_compressed(translate("The CircuitPython heap was corrupted because the stack was too small.\nPlease increase the stack size if you know how, or if not:"));
                 serial_write_compressed(FILE_AN_ISSUE);
                 return;
+            case NO_HEAP:
+                serial_write_compressed(translate("CircuitPython was unable to allocate the heap.\n"));
+                serial_write_compressed(FILE_AN_ISSUE);
+                return;
             default:
                 break;
         }
diff --git a/supervisor/shared/safe_mode.h b/supervisor/shared/safe_mode.h
index c160739ae..7d3cd63b5 100644
--- a/supervisor/shared/safe_mode.h
+++ b/supervisor/shared/safe_mode.h
@@ -42,6 +42,7 @@ typedef enum {
   FLASH_WRITE_FAIL,
   MEM_MANAGE,
   WATCHDOG_RESET,
+  NO_HEAP,
 } safe_mode_t;
 
 safe_mode_t wait_for_safe_mode_reset(void);