/* for the following variables, see start.S */
extern ulong __bss_start; /* BSS start relative to _start */
-extern ulong __bss_end__; /* BSS end relative to _start */
+extern ulong __bss_end; /* BSS end relative to _start */
extern ulong _end; /* end of image relative to _start */
extern ulong _start; /* start of image relative to _start */
extern ulong _TEXT_BASE; /* code start */