#define __app__(x, y) str__##x##y#define __app(x, y) __app__(x, y) #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) #define TRACE_MAKE_SYSTEM_STR()				\	static const char TRACE_SYSTEM_STRING[] =	\		__stringify(TRACE_SYSTEM) TRACE_MAKE_SYSTEM_STR(); #undef TRACE_DEFINE_ENUM#define TRACE_DEFINE_ENUM(a)				\	static struct trace_eval_map __used __initdata	\	__##TRACE_SYSTEM##_##a =			\	{						\		.system = TRACE_SYSTEM_STRING,		\		.eval_string = #a,			\		.eval_value = a				\	};						\	static struct trace_eval_map __used		\	__section("_ftrace_eval_map")			\	*TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a #undef TRACE_DEFINE_SIZEOF#define TRACE_DEFINE_SIZEOF(a)				\	static struct trace_eval_map __used __initdata	\	__##TRACE_SYSTEM##_##a =			\	{						\		.system = TRACE_SYSTEM_STRING,		\		.eval_string = "sizeof(" #a ")",	\		.eval_value = sizeof(a)			\	};						\	static struct trace_eval_map __used		\	__section("_ftrace_eval_map")			\	*TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a