diff --git a/src/rp2_common/pico_standard_link/memmap_default.ld b/src/rp2_common/pico_standard_link/memmap_default.ld
index e85b327..af79caf 100644
--- a/src/rp2_common/pico_standard_link/memmap_default.ld
+++ b/src/rp2_common/pico_standard_link/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 = .;
@@ -85,6 +88,7 @@ SECTIONS

         *(.eh_frame*)
         . = ALIGN(4);
+       __pw_code_end = .;
     } > FLASH

     .rodata : {