SW_R18             93 arch/nios2/include/asm/entry.h 	stw	r18, SW_R18(sp)
SW_R18            107 arch/nios2/include/asm/entry.h 	ldw	r18, SW_R18(sp)
SW_R18             56 arch/nios2/kernel/asm-offsets.c 	OFFSET(SW_R18, switch_stack, r18);