diff --git a/src/rp2_common/pico_crt0/rp2040/memmap_default.ld b/src/rp2_common/pico_crt0/rp2040/memmap_default.ld
index aea712a..b319360 100644
--- a/src/rp2_common/pico_crt0/rp2040/memmap_default.ld
+++ b/src/rp2_common/pico_crt0/rp2040/memmap_default.ld
@@ -19,6 +19,8 @@
     __StackLimit
     __StackTop
     __stack (== StackTop)
+    __pw_code_begin
+    __pw_code_end
 */
 
 MEMORY
@@ -60,6 +62,7 @@ SECTIONS
 
     .text : {
         __logical_binary_start = .;
+        __pw_code_begin = .;
         KEEP (*(.vectors))
         KEEP (*(.binary_info_header))
         __binary_info_header_end = .;
@@ -108,6 +111,7 @@ SECTIONS
 
         *(.eh_frame*)
         . = ALIGN(4);
+        __pw_code_end = .;
     } > FLASH
 
     .rodata : {