diff --git a/src/link.ld b/src/link.ld
index 979eb40..cc94e12 100644
--- a/src/link.ld
+++ b/src/link.ld
@@ -3,6 +3,7 @@ ENTRY(hos_start)
 SECTIONS
 {
     . = 1M;
+    _hos_mem_start = .;
 
     .text BLOCK(4K) : ALIGN(4K)
     {
@@ -33,4 +34,8 @@ SECTIONS
         *(COMMON)
         *(.bss)
     }
+
+    . = ALIGN(4K);
+
+    _hos_mem_end = .;
 }