diff -urN linux-2.6.23.12/arch/mips/kernel/head.S linux-2.6.23.12.new/arch/mips/kernel/head.S
--- linux-2.6.23.12/arch/mips/kernel/head.S	2008-01-11 11:27:08.000000000 +0100
+++ linux-2.6.23.12.new/arch/mips/kernel/head.S	2008-01-11 11:27:35.000000000 +0100
@@ -132,6 +132,10 @@
 
 	j kernel_entry
 	nop
+
+EXPORT(_image_cmdline)
+       .ascii "CMDLINE:"
+
 #ifndef CONFIG_NO_EXCEPT_FILL
 	/*
 	 * Reserved space for exception handlers.