--- avr6.x-new	2013-03-18 19:26:11.000000000 +1100
+++ avr6.x-test	2013-03-18 20:01:48.000000000 +1100
@@ -1,6 +1,7 @@
 /* Default linker script, for normal executables */
 OUTPUT_FORMAT("elf32-avr","elf32-avr","elf32-avr")
 OUTPUT_ARCH(avr:6)
+__total_text = 256K ;
 MEMORY
 {
   text   (rx)   : ORIGIN = 0, LENGTH = 1024K
@@ -124,6 +125,8 @@ SECTIONS
 
   .hightext :
   {
+    x = ASSERT (. <= __total_text, "Error: FlashN page placed beyond available flash memory.") ;
+
     /* The following is OK to follow preceding sections
        at any even byte address, on any page. */
 
@@ -190,6 +193,9 @@ SECTIONS
      _edata = . ;
      PROVIDE (__data_end = .) ;
   }  > data
+
+    x = ASSERT (_etext + SIZEOF(.data) <= __total_text, "Error: text + data overflows available flash memory.") ;
+
   .bss   : AT (ADDR (.bss))
   {
      PROVIDE (__bss_start = .) ;