include/trace/trace_events.h - kernel/msm-4.9 - Gitiles

 /*
  * Stage 1 of the trace events.
  *
  * Override the macros in <trace/trace_events.h> to include the following:
  *
  * struct trace_event_raw_<call> {
  *	struct trace_entry		ent;
  *	<type>				<item>;
  *	<type2>				<item2>[<len>];
  *	[...]
  * };
  *
  * The <type> <item> is created by the __field(type, item) macro or
  * the __array(type2, item2, len) macro.
  * We simply do "type item;", and that will create the fields
  * in the structure.
  */

 #include <linux/trace_events.h>

 #ifndef TRACE_SYSTEM_VAR
 #define TRACE_SYSTEM_VAR TRACE_SYSTEM
 #endif

 #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_enum_map __used __initdata	\
 	__##TRACE_SYSTEM##_##a =			\
 	{						\
 		.system = TRACE_SYSTEM_STRING,		\
 		.enum_string = #a,			\
 		.enum_value = a				\
 	};						\
 	static struct trace_enum_map __used		\
 	__attribute__((section("_ftrace_enum_map")))	\
 	*TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a

 /*
  * DECLARE_EVENT_CLASS can be used to add a generic function
  * handlers for events. That is, if all events have the same
  * parameters and just have distinct trace points.
  * Each tracepoint can be defined with DEFINE_EVENT and that
  * will map the DECLARE_EVENT_CLASS to the tracepoint.
  *
  * TRACE_EVENT is a one to one mapping between tracepoint and template.
  */
 #undef TRACE_EVENT
 #define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
 	DECLARE_EVENT_CLASS(name,			       \
 			     PARAMS(proto),		       \
 			     PARAMS(args),		       \
 			     PARAMS(tstruct),		       \
 			     PARAMS(assign),		       \
 			     PARAMS(print));		       \
 	DEFINE_EVENT(name, name, PARAMS(proto), PARAMS(args));


 #undef __field
 #define __field(type, item)		type	item;

 #undef __field_ext
 #define __field_ext(type, item, filter_type)	type	item;

 #undef __field_struct
 #define __field_struct(type, item)	type	item;

 #undef __field_struct_ext
 #define __field_struct_ext(type, item, filter_type)	type	item;

 #undef __array
 #define __array(type, item, len)	type	item[len];

 #undef __dynamic_array
 #define __dynamic_array(type, item, len) u32 __data_loc_##item;

 #undef __string
 #define __string(item, src) __dynamic_array(char, item, -1)

 #undef __bitmask
 #define __bitmask(item, nr_bits) __dynamic_array(char, item, -1)

 #undef TP_STRUCT__entry
 #define TP_STRUCT__entry(args...) args

 #undef DECLARE_EVENT_CLASS
 #define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print)	\
 	struct trace_event_raw_##name {					\
 		struct trace_entry	ent;				\
 		tstruct							\
 		char			__data[0];			\
 	};								\
 									\
 	static struct trace_event_class event_class_##name;

 #undef DEFINE_EVENT
 #define DEFINE_EVENT(template, name, proto, args)	\
 	static struct trace_event_call	__used		\
 	__attribute__((__aligned__(4))) event_##name

 #undef DEFINE_EVENT_FN
 #define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg)	\
 	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))

 #undef DEFINE_EVENT_PRINT
 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)	\
 	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))

 /* Callbacks are meaningless to ftrace. */
 #undef TRACE_EVENT_FN
 #define TRACE_EVENT_FN(name, proto, args, tstruct,			\
 		assign, print, reg, unreg)				\
 	TRACE_EVENT(name, PARAMS(proto), PARAMS(args),			\
 		PARAMS(tstruct), PARAMS(assign), PARAMS(print))		\

 #undef TRACE_EVENT_FLAGS
 #define TRACE_EVENT_FLAGS(name, value)					\
 	__TRACE_EVENT_FLAGS(name, value)

 #undef TRACE_EVENT_PERF_PERM
 #define TRACE_EVENT_PERF_PERM(name, expr...)				\
 	__TRACE_EVENT_PERF_PERM(name, expr)

 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

 /*
  * Stage 2 of the trace events.
  *
  * Include the following:
  *
  * struct trace_event_data_offsets_<call> {
  *	u32				<item1>;
  *	u32				<item2>;
  *	[...]
  * };
  *
  * The __dynamic_array() macro will create each u32 <item>, this is
  * to keep the offset of each array from the beginning of the event.
  * The size of an array is also encoded, in the higher 16 bits of <item>.
  */

 #undef TRACE_DEFINE_ENUM
 #define TRACE_DEFINE_ENUM(a)

 #undef __field
 #define __field(type, item)

 #undef __field_ext
 #define __field_ext(type, item, filter_type)

 #undef __field_struct
 #define __field_struct(type, item)

 #undef __field_struct_ext
 #define __field_struct_ext(type, item, filter_type)

 #undef __array
 #define __array(type, item, len)

 #undef __dynamic_array
 #define __dynamic_array(type, item, len)	u32 item;

 #undef __string
 #define __string(item, src) __dynamic_array(char, item, -1)

 #undef __bitmask
 #define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)

 #undef DECLARE_EVENT_CLASS
 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)	\
 	struct trace_event_data_offsets_##call {			\
 		tstruct;						\
 	};

 #undef DEFINE_EVENT
 #define DEFINE_EVENT(template, name, proto, args)

 #undef DEFINE_EVENT_PRINT
 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)	\
 	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))

 #undef TRACE_EVENT_FLAGS
 #define TRACE_EVENT_FLAGS(event, flag)

 #undef TRACE_EVENT_PERF_PERM
 #define TRACE_EVENT_PERF_PERM(event, expr...)

 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

 /*
  * Stage 3 of the trace events.
  *
  * Override the macros in <trace/trace_events.h> to include the following:
  *
  * enum print_line_t
  * trace_raw_output_<call>(struct trace_iterator *iter, int flags)
  * {
  *	struct trace_seq *s = &iter->seq;
  *	struct trace_event_raw_<call> *field; <-- defined in stage 1
  *	struct trace_entry *entry;
  *	struct trace_seq *p = &iter->tmp_seq;
  *	int ret;
  *
  *	entry = iter->ent;
  *
  *	if (entry->type != event_<call>->event.type) {
  *		WARN_ON_ONCE(1);
  *		return TRACE_TYPE_UNHANDLED;
  *	}
  *
  *	field = (typeof(field))entry;
  *
  *	trace_seq_init(p);
  *	ret = trace_seq_printf(s, "%s: ", <call>);
  *	if (ret)
  *		ret = trace_seq_printf(s, <TP_printk> "\n");
  *	if (!ret)
  *		return TRACE_TYPE_PARTIAL_LINE;
  *
  *	return TRACE_TYPE_HANDLED;
  * }
  *
  * This is the method used to print the raw event to the trace
  * output format. Note, this is not needed if the data is read
  * in binary.
  */

 #undef __entry
 #define __entry field

 #undef TP_printk
 #define TP_printk(fmt, args...) fmt "\n", args

 #undef __get_dynamic_array
 #define __get_dynamic_array(field)	\
 		((void *)__entry + (__entry->__data_loc_##field & 0xffff))

 #undef __get_dynamic_array_len
 #define __get_dynamic_array_len(field)	\
 		((__entry->__data_loc_##field >> 16) & 0xffff)

 #undef __get_str
 #define __get_str(field) (char *)__get_dynamic_array(field)

 #undef __get_bitmask
 #define __get_bitmask(field)						\
 	({								\
 		void *__bitmask = __get_dynamic_array(field);		\
 		unsigned int __bitmask_size;				\
 		__bitmask_size = __get_dynamic_array_len(field);	\
 		trace_print_bitmask_seq(p, __bitmask, __bitmask_size);	\
 	})

 #undef __print_flags
 #define __print_flags(flag, delim, flag_array...)			\
 	({								\
 		static const struct trace_print_flags __flags[] =	\
 			{ flag_array, { -1, NULL }};			\
 		trace_print_flags_seq(p, delim, flag, __flags);	\
 	})

 #undef __print_symbolic
 #define __print_symbolic(value, symbol_array...)			\
 	({								\
 		static const struct trace_print_flags symbols[] =	\
 			{ symbol_array, { -1, NULL }};			\
 		trace_print_symbols_seq(p, value, symbols);		\
 	})

 #undef __print_symbolic_u64
 #if BITS_PER_LONG == 32
 #define __print_symbolic_u64(value, symbol_array...)			\
 	({								\
 		static const struct trace_print_flags_u64 symbols[] =	\
 			{ symbol_array, { -1, NULL } };			\
 		trace_print_symbols_seq_u64(p, value, symbols);	\
 	})
 #else
 #define __print_symbolic_u64(value, symbol_array...)			\
 			__print_symbolic(value, symbol_array)
 #endif

 #undef __print_hex
 #define __print_hex(buf, buf_len) trace_print_hex_seq(p, buf, buf_len)

 #undef __print_array
 #define __print_array(array, count, el_size)				\
 	({								\
 		BUILD_BUG_ON(el_size != 1 && el_size != 2 &&		\
 			     el_size != 4 && el_size != 8);		\
 		trace_print_array_seq(p, array, count, el_size);	\
 	})

 #undef DECLARE_EVENT_CLASS
 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)	\
 static notrace enum print_line_t					\
 trace_raw_output_##call(struct trace_iterator *iter, int flags,		\
 			struct trace_event *trace_event)		\
 {									\
 	struct trace_seq *s = &iter->seq;				\
 	struct trace_seq __maybe_unused *p = &iter->tmp_seq;		\
 	struct trace_event_raw_##call *field;				\
 	int ret;							\
 									\
 	field = (typeof(field))iter->ent;				\
 									\
 	ret = trace_raw_output_prep(iter, trace_event);			\
 	if (ret != TRACE_TYPE_HANDLED)					\
 		return ret;						\
 									\
 	trace_seq_printf(s, print);					\
 									\
 	return trace_handle_return(s);					\
 }									\
 static struct trace_event_functions trace_event_type_funcs_##call = {	\
 	.trace			= trace_raw_output_##call,		\
 };

 #undef DEFINE_EVENT_PRINT
 #define DEFINE_EVENT_PRINT(template, call, proto, args, print)		\
 static notrace enum print_line_t					\
 trace_raw_output_##call(struct trace_iterator *iter, int flags,		\
 			 struct trace_event *event)			\
 {									\
 	struct trace_event_raw_##template *field;			\
 	struct trace_entry *entry;					\
 	struct trace_seq *p = &iter->tmp_seq;				\
 									\
 	entry = iter->ent;						\
 									\
 	if (entry->type != event_##call.event.type) {			\
 		WARN_ON_ONCE(1);					\
 		return TRACE_TYPE_UNHANDLED;				\
 	}								\
 									\
 	field = (typeof(field))entry;					\
 									\
 	trace_seq_init(p);						\
 	return trace_output_call(iter, #call, print);			\
 }									\
 static struct trace_event_functions trace_event_type_funcs_##call = {	\
 	.trace			= trace_raw_output_##call,		\
 };

 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

 #undef __field_ext
 #define __field_ext(type, item, filter_type)				\
 	ret = trace_define_field(event_call, #type, #item,		\
 				 offsetof(typeof(field), item),		\
 				 sizeof(field.item),			\
 				 is_signed_type(type), filter_type);	\
 	if (ret)							\
 		return ret;

 #undef __field_struct_ext
 #define __field_struct_ext(type, item, filter_type)			\
 	ret = trace_define_field(event_call, #type, #item,		\
 				 offsetof(typeof(field), item),		\
 				 sizeof(field.item),			\
 				 0, filter_type);			\
 	if (ret)							\
 		return ret;

 #undef __field
 #define __field(type, item)	__field_ext(type, item, FILTER_OTHER)

 #undef __field_struct
 #define __field_struct(type, item) __field_struct_ext(type, item, FILTER_OTHER)

 #undef __array
 #define __array(type, item, len)					\
 	do {								\
 		char *type_str = #type"["__stringify(len)"]";		\
 		BUILD_BUG_ON(len > MAX_FILTER_STR_VAL);			\
 		ret = trace_define_field(event_call, type_str, #item,	\
 				 offsetof(typeof(field), item),		\
 				 sizeof(field.item),			\
 				 is_signed_type(type), FILTER_OTHER);	\
 		if (ret)						\
 			return ret;					\
 	} while (0);

 #undef __dynamic_array
 #define __dynamic_array(type, item, len)				       \
 	ret = trace_define_field(event_call, "__data_loc " #type "[]", #item,  \
 				 offsetof(typeof(field), __data_loc_##item),   \
 				 sizeof(field.__data_loc_##item),	       \
 				 is_signed_type(type), FILTER_OTHER);

 #undef __string
 #define __string(item, src) __dynamic_array(char, item, -1)

 #undef __bitmask
 #define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)

 #undef DECLARE_EVENT_CLASS
 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print)	\
 static int notrace __init						\
 trace_event_define_fields_##call(struct trace_event_call *event_call)	\
 {									\
 	struct trace_event_raw_##call field;				\
 	int ret;							\
 									\
 	tstruct;							\
 									\
 	return ret;							\
 }

 #undef DEFINE_EVENT
 #define DEFINE_EVENT(template, name, proto, args)

 #undef DEFINE_EVENT_PRINT
 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)	\
 	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))

 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

 /*
  * remember the offset of each array from the beginning of the event.
  */

 #undef __entry
 #define __entry entry

 #undef __field
 #define __field(type, item)

 #undef __field_ext
 #define __field_ext(type, item, filter_type)

 #undef __field_struct
 #define __field_struct(type, item)

 #undef __field_struct_ext
 #define __field_struct_ext(type, item, filter_type)

 #undef __array
 #define __array(type, item, len)

 #undef __dynamic_array
 #define __dynamic_array(type, item, len)				\
 	__item_length = (len) * sizeof(type);				\
 	__data_offsets->item = __data_size +				\
 			       offsetof(typeof(*entry), __data);	\
 	__data_offsets->item |= __item_length << 16;			\
 	__data_size += __item_length;

 #undef __string
 #define __string(item, src) __dynamic_array(char, item,			\
 		    strlen((src) ? (const char *)(src) : "(null)") + 1)

 /*
  * __bitmask_size_in_bytes_raw is the number of bytes needed to hold
  * num_possible_cpus().
  */
 #define __bitmask_size_in_bytes_raw(nr_bits)	\
 	(((nr_bits) + 7) / 8)

 #define __bitmask_size_in_longs(nr_bits)			\
 	((__bitmask_size_in_bytes_raw(nr_bits) +		\
 	  ((BITS_PER_LONG / 8) - 1)) / (BITS_PER_LONG / 8))

 /*
  * __bitmask_size_in_bytes is the number of bytes needed to hold
  * num_possible_cpus() padded out to the nearest long. This is what
  * is saved in the buffer, just to be consistent.
  */
 #define __bitmask_size_in_bytes(nr_bits)				\
 	(__bitmask_size_in_longs(nr_bits) * (BITS_PER_LONG / 8))

 #undef __bitmask
 #define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item,	\
 					 __bitmask_size_in_longs(nr_bits))

 #undef DECLARE_EVENT_CLASS
 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)	\
 static inline notrace int trace_event_get_offsets_##call(		\
 	struct trace_event_data_offsets_##call *__data_offsets, proto)	\
 {									\
 	int __data_size = 0;						\
 	int __maybe_unused __item_length;				\
 	struct trace_event_raw_##call __maybe_unused *entry;		\
 									\
 	tstruct;							\
 									\
 	return __data_size;						\
 }

 #undef DEFINE_EVENT
 #define DEFINE_EVENT(template, name, proto, args)

 #undef DEFINE_EVENT_PRINT
 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)	\
 	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))

 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
	/*
	* Stage 1 of the trace events.
	*
	* Override the macros in <trace/trace_events.h> to include the following:
	*
	* struct trace_event_raw_<call> {
	* struct trace_entry ent;
	* <type> <item>;
	* <type2> <item2>[<len>];
	* [...]
	* };
	*
	* The <type> <item> is created by the __field(type, item) macro or
	* the __array(type2, item2, len) macro.
	* We simply do "type item;", and that will create the fields
	* in the structure.
	*/

	#include <linux/trace_events.h>

	#ifndef TRACE_SYSTEM_VAR
	#define TRACE_SYSTEM_VAR TRACE_SYSTEM
	#endif

	#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_enum_map __used __initdata \
	__##TRACE_SYSTEM##_##a = \
	{ \
	.system = TRACE_SYSTEM_STRING, \
	.enum_string = #a, \
	.enum_value = a \
	}; \
	static struct trace_enum_map __used \
	__attribute__((section("_ftrace_enum_map"))) \
	*TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a

	/*
	* DECLARE_EVENT_CLASS can be used to add a generic function
	* handlers for events. That is, if all events have the same
	* parameters and just have distinct trace points.
	* Each tracepoint can be defined with DEFINE_EVENT and that
	* will map the DECLARE_EVENT_CLASS to the tracepoint.
	*
	* TRACE_EVENT is a one to one mapping between tracepoint and template.
	*/
	#undef TRACE_EVENT
	#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
	DECLARE_EVENT_CLASS(name, \
	PARAMS(proto), \
	PARAMS(args), \
	PARAMS(tstruct), \
	PARAMS(assign), \
	PARAMS(print)); \
	DEFINE_EVENT(name, name, PARAMS(proto), PARAMS(args));


	#undef __field
	#define __field(type, item) type item;

	#undef __field_ext
	#define __field_ext(type, item, filter_type) type item;

	#undef __field_struct
	#define __field_struct(type, item) type item;

	#undef __field_struct_ext
	#define __field_struct_ext(type, item, filter_type) type item;

	#undef __array
	#define __array(type, item, len) type item[len];

	#undef __dynamic_array
	#define __dynamic_array(type, item, len) u32 __data_loc_##item;

	#undef __string
	#define __string(item, src) __dynamic_array(char, item, -1)

	#undef __bitmask
	#define __bitmask(item, nr_bits) __dynamic_array(char, item, -1)

	#undef TP_STRUCT__entry
	#define TP_STRUCT__entry(args...) args

	#undef DECLARE_EVENT_CLASS
	#define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print) \
	struct trace_event_raw_##name { \
	struct trace_entry ent; \
	tstruct \
	char __data[0]; \
	}; \
	\
	static struct trace_event_class event_class_##name;

	#undef DEFINE_EVENT
	#define DEFINE_EVENT(template, name, proto, args) \
	static struct trace_event_call __used \
	__attribute__((__aligned__(4))) event_##name

	#undef DEFINE_EVENT_FN
	#define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg) \
	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))

	#undef DEFINE_EVENT_PRINT
	#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))

	/* Callbacks are meaningless to ftrace. */
	#undef TRACE_EVENT_FN
	#define TRACE_EVENT_FN(name, proto, args, tstruct, \
	assign, print, reg, unreg) \
	TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \
	PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \

	#undef TRACE_EVENT_FLAGS
	#define TRACE_EVENT_FLAGS(name, value) \
	__TRACE_EVENT_FLAGS(name, value)

	#undef TRACE_EVENT_PERF_PERM
	#define TRACE_EVENT_PERF_PERM(name, expr...) \
	__TRACE_EVENT_PERF_PERM(name, expr)

	#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

	/*
	* Stage 2 of the trace events.
	*
	* Include the following:
	*
	* struct trace_event_data_offsets_<call> {
	* u32 <item1>;
	* u32 <item2>;
	* [...]
	* };
	*
	* The __dynamic_array() macro will create each u32 <item>, this is
	* to keep the offset of each array from the beginning of the event.
	* The size of an array is also encoded, in the higher 16 bits of <item>.
	*/

	#undef TRACE_DEFINE_ENUM
	#define TRACE_DEFINE_ENUM(a)

	#undef __field
	#define __field(type, item)

	#undef __field_ext
	#define __field_ext(type, item, filter_type)

	#undef __field_struct
	#define __field_struct(type, item)

	#undef __field_struct_ext
	#define __field_struct_ext(type, item, filter_type)

	#undef __array
	#define __array(type, item, len)

	#undef __dynamic_array
	#define __dynamic_array(type, item, len) u32 item;

	#undef __string
	#define __string(item, src) __dynamic_array(char, item, -1)

	#undef __bitmask
	#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)

	#undef DECLARE_EVENT_CLASS
	#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
	struct trace_event_data_offsets_##call { \
	tstruct; \
	};

	#undef DEFINE_EVENT
	#define DEFINE_EVENT(template, name, proto, args)

	#undef DEFINE_EVENT_PRINT
	#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))

	#undef TRACE_EVENT_FLAGS
	#define TRACE_EVENT_FLAGS(event, flag)

	#undef TRACE_EVENT_PERF_PERM
	#define TRACE_EVENT_PERF_PERM(event, expr...)

	#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

	/*
	* Stage 3 of the trace events.
	*
	* Override the macros in <trace/trace_events.h> to include the following:
	*
	* enum print_line_t
	* trace_raw_output_<call>(struct trace_iterator *iter, int flags)
	* {
	* struct trace_seq *s = &iter->seq;
	* struct trace_event_raw_<call> *field; <-- defined in stage 1
	* struct trace_entry *entry;
	* struct trace_seq *p = &iter->tmp_seq;
	* int ret;
	*
	* entry = iter->ent;
	*
	* if (entry->type != event_<call>->event.type) {
	* WARN_ON_ONCE(1);
	* return TRACE_TYPE_UNHANDLED;
	* }
	*
	* field = (typeof(field))entry;
	*
	* trace_seq_init(p);
	* ret = trace_seq_printf(s, "%s: ", <call>);
	* if (ret)
	* ret = trace_seq_printf(s, <TP_printk> "\n");
	* if (!ret)
	* return TRACE_TYPE_PARTIAL_LINE;
	*
	* return TRACE_TYPE_HANDLED;
	* }
	*
	* This is the method used to print the raw event to the trace
	* output format. Note, this is not needed if the data is read
	* in binary.
	*/

	#undef __entry
	#define __entry field

	#undef TP_printk
	#define TP_printk(fmt, args...) fmt "\n", args

	#undef __get_dynamic_array
	#define __get_dynamic_array(field) \
	((void *)__entry + (__entry->__data_loc_##field & 0xffff))

	#undef __get_dynamic_array_len
	#define __get_dynamic_array_len(field) \
	((__entry->__data_loc_##field >> 16) & 0xffff)

	#undef __get_str
	#define __get_str(field) (char *)__get_dynamic_array(field)

	#undef __get_bitmask
	#define __get_bitmask(field) \
	({ \
	void *__bitmask = __get_dynamic_array(field); \
	unsigned int __bitmask_size; \
	__bitmask_size = __get_dynamic_array_len(field); \
	trace_print_bitmask_seq(p, __bitmask, __bitmask_size); \
	})

	#undef __print_flags
	#define __print_flags(flag, delim, flag_array...) \
	({ \
	static const struct trace_print_flags __flags[] = \
	{ flag_array, { -1, NULL }}; \
	trace_print_flags_seq(p, delim, flag, __flags); \
	})

	#undef __print_symbolic
	#define __print_symbolic(value, symbol_array...) \
	({ \
	static const struct trace_print_flags symbols[] = \
	{ symbol_array, { -1, NULL }}; \
	trace_print_symbols_seq(p, value, symbols); \
	})

	#undef __print_symbolic_u64
	#if BITS_PER_LONG == 32
	#define __print_symbolic_u64(value, symbol_array...) \
	({ \
	static const struct trace_print_flags_u64 symbols[] = \
	{ symbol_array, { -1, NULL } }; \
	trace_print_symbols_seq_u64(p, value, symbols); \
	})
	#else
	#define __print_symbolic_u64(value, symbol_array...) \
	__print_symbolic(value, symbol_array)
	#endif

	#undef __print_hex
	#define __print_hex(buf, buf_len) trace_print_hex_seq(p, buf, buf_len)

	#undef __print_array
	#define __print_array(array, count, el_size) \
	({ \
	BUILD_BUG_ON(el_size != 1 && el_size != 2 && \
	el_size != 4 && el_size != 8); \
	trace_print_array_seq(p, array, count, el_size); \
	})

	#undef DECLARE_EVENT_CLASS
	#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
	static notrace enum print_line_t \
	trace_raw_output_##call(struct trace_iterator *iter, int flags, \
	struct trace_event *trace_event) \
	{ \
	struct trace_seq *s = &iter->seq; \
	struct trace_seq __maybe_unused *p = &iter->tmp_seq; \
	struct trace_event_raw_##call *field; \
	int ret; \
	\
	field = (typeof(field))iter->ent; \
	\
	ret = trace_raw_output_prep(iter, trace_event); \
	if (ret != TRACE_TYPE_HANDLED) \
	return ret; \
	\
	trace_seq_printf(s, print); \
	\
	return trace_handle_return(s); \
	} \
	static struct trace_event_functions trace_event_type_funcs_##call = { \
	.trace = trace_raw_output_##call, \
	};

	#undef DEFINE_EVENT_PRINT
	#define DEFINE_EVENT_PRINT(template, call, proto, args, print) \
	static notrace enum print_line_t \
	trace_raw_output_##call(struct trace_iterator *iter, int flags, \
	struct trace_event *event) \
	{ \
	struct trace_event_raw_##template *field; \
	struct trace_entry *entry; \
	struct trace_seq *p = &iter->tmp_seq; \
	\
	entry = iter->ent; \
	\
	if (entry->type != event_##call.event.type) { \
	WARN_ON_ONCE(1); \
	return TRACE_TYPE_UNHANDLED; \
	} \
	\
	field = (typeof(field))entry; \
	\
	trace_seq_init(p); \
	return trace_output_call(iter, #call, print); \
	} \
	static struct trace_event_functions trace_event_type_funcs_##call = { \
	.trace = trace_raw_output_##call, \
	};

	#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

	#undef __field_ext
	#define __field_ext(type, item, filter_type) \
	ret = trace_define_field(event_call, #type, #item, \
	offsetof(typeof(field), item), \
	sizeof(field.item), \
	is_signed_type(type), filter_type); \
	if (ret) \
	return ret;

	#undef __field_struct_ext
	#define __field_struct_ext(type, item, filter_type) \
	ret = trace_define_field(event_call, #type, #item, \
	offsetof(typeof(field), item), \
	sizeof(field.item), \
	0, filter_type); \
	if (ret) \
	return ret;

	#undef __field
	#define __field(type, item) __field_ext(type, item, FILTER_OTHER)

	#undef __field_struct
	#define __field_struct(type, item) __field_struct_ext(type, item, FILTER_OTHER)

	#undef __array
	#define __array(type, item, len) \
	do { \
	char *type_str = #type"["__stringify(len)"]"; \
	BUILD_BUG_ON(len > MAX_FILTER_STR_VAL); \
	ret = trace_define_field(event_call, type_str, #item, \
	offsetof(typeof(field), item), \
	sizeof(field.item), \
	is_signed_type(type), FILTER_OTHER); \
	if (ret) \
	return ret; \
	} while (0);

	#undef __dynamic_array
	#define __dynamic_array(type, item, len) \
	ret = trace_define_field(event_call, "__data_loc " #type "[]", #item, \
	offsetof(typeof(field), __data_loc_##item), \
	sizeof(field.__data_loc_##item), \
	is_signed_type(type), FILTER_OTHER);

	#undef __string
	#define __string(item, src) __dynamic_array(char, item, -1)

	#undef __bitmask
	#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)

	#undef DECLARE_EVENT_CLASS
	#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \
	static int notrace __init \
	trace_event_define_fields_##call(struct trace_event_call *event_call) \
	{ \
	struct trace_event_raw_##call field; \
	int ret; \
	\
	tstruct; \
	\
	return ret; \
	}

	#undef DEFINE_EVENT
	#define DEFINE_EVENT(template, name, proto, args)

	#undef DEFINE_EVENT_PRINT
	#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))

	#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

	/*
	* remember the offset of each array from the beginning of the event.
	*/

	#undef __entry
	#define __entry entry

	#undef __field
	#define __field(type, item)

	#undef __field_ext
	#define __field_ext(type, item, filter_type)

	#undef __field_struct
	#define __field_struct(type, item)

	#undef __field_struct_ext
	#define __field_struct_ext(type, item, filter_type)

	#undef __array
	#define __array(type, item, len)

	#undef __dynamic_array
	#define __dynamic_array(type, item, len) \
	__item_length = (len) * sizeof(type); \
	__data_offsets->item = __data_size + \
	offsetof(typeof(*entry), __data); \
	__data_offsets->item \|= __item_length << 16; \
	__data_size += __item_length;

	#undef __string
	#define __string(item, src) __dynamic_array(char, item, \
	strlen((src) ? (const char *)(src) : "(null)") + 1)

	/*
	* __bitmask_size_in_bytes_raw is the number of bytes needed to hold
	* num_possible_cpus().
	*/
	#define __bitmask_size_in_bytes_raw(nr_bits) \
	(((nr_bits) + 7) / 8)

	#define __bitmask_size_in_longs(nr_bits) \
	((__bitmask_size_in_bytes_raw(nr_bits) + \
	((BITS_PER_LONG / 8) - 1)) / (BITS_PER_LONG / 8))

	/*
	* __bitmask_size_in_bytes is the number of bytes needed to hold
	* num_possible_cpus() padded out to the nearest long. This is what
	* is saved in the buffer, just to be consistent.
	*/
	#define __bitmask_size_in_bytes(nr_bits) \
	(__bitmask_size_in_longs(nr_bits) * (BITS_PER_LONG / 8))

	#undef __bitmask
	#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, \
	__bitmask_size_in_longs(nr_bits))

	#undef DECLARE_EVENT_CLASS
	#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
	static inline notrace int trace_event_get_offsets_##call( \
	struct trace_event_data_offsets_##call *__data_offsets, proto) \
	{ \
	int __data_size = 0; \
	int __maybe_unused __item_length; \
	struct trace_event_raw_##call __maybe_unused *entry; \
	\
	tstruct; \
	\
	return __data_size; \
	}

	#undef DEFINE_EVENT
	#define DEFINE_EVENT(template, name, proto, args)

	#undef DEFINE_EVENT_PRINT
	#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))

	#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)