include/linux/kbuild.h

#ifndef __LINUX_KBUILD_H
#define __LINUX_KBUILD_H

#define DEFINE(sym, val) \
	asm volatile ("#define " #sym " %0 /*" #val :: "i" (val))

#define BLANK() asm volatile("\n->" : : )

#define OFFSET(sym, str, mem) \
	DEFINE(sym, offsetof(struct str, mem))

#define COMMENT(x) \
	asm volatile("\n->#" x)

#endif