Hi all, I wanted to prevent compiler from optimizing out several variables of Linux kerenel, so I can debug it in GDB, so I used __attribute__((used)) following this philosophy : http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0491c/BABCJJID.html However, trying to compile my kernel, I am getting the error : arch/mips/mm/tlb-r4k.c:73: error: 'used' attribute ignored Why is this happening ? Compiler version : Target: mips-openwrt-linux-uclibc gcc version 4.3.3 (GCC) BR, Drasko