1 /* SPDX-License-Identifier: GPL-2.0 */
5  * Override the macros in the event tracepoint header <trace/events/XXX.h>
39 #define TRACE_EVENT(name, proto, args, tstruct, assign, print) \  argument
40 	DECLARE_EVENT_CLASS(name,			       \
46 	DEFINE_EVENT(name, name, PARAMS(proto), PARAMS(args));
49 #define TRACE_EVENT_SYSCALL(name, proto, args, tstruct, assign, print, reg, unreg) \  argument
50 	DECLARE_EVENT_SYSCALL_CLASS(name,		       \
56 	DEFINE_EVENT(name, name, PARAMS(proto), PARAMS(args));
61 #define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print)	\  argument
62 	struct trace_event_raw_##name {					\
68 	static struct trace_event_class event_class_##name;
74 #define DEFINE_EVENT(template, name, proto, args)	\  argument
76 	__attribute__((__aligned__(4))) event_##name
79 #define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg)	\  argument
80 	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
83 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)	\  argument
84 	DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
88 #define TRACE_EVENT_FN(name, proto, args, tstruct,			\  argument
90 	TRACE_EVENT(name, PARAMS(proto), PARAMS(args),			\
94 #define TRACE_EVENT_FN_COND(name, proto, args, cond, tstruct,	\  argument
96 	TRACE_EVENT_CONDITION(name, PARAMS(proto), PARAMS(args), PARAMS(cond),		\
100 #define TRACE_EVENT_FLAGS(name, value)					\  argument
101 	__TRACE_EVENT_FLAGS(name, value)
104 #define TRACE_EVENT_PERF_PERM(name, expr...)				\  argument
105 	__TRACE_EVENT_PERF_PERM(name, expr)
121  * to keep the offset of each array from the beginning of the event.
137 #define DEFINE_EVENT(template, name, proto, args)  argument
140 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  argument
143 #define TRACE_EVENT_FLAGS(event, flag)  argument
146 #define TRACE_EVENT_PERF_PERM(event, expr...)  argument
153  * Override the macros in the event tracepoint header <trace/events/XXX.h>
159  *	struct trace_seq *s = &iter->seq;
160  *	struct trace_event_raw_<call> *field; <-- defined in stage 1
161  *	struct trace_seq *p = &iter->tmp_seq;
163  * -------(for event)-------
167  *	entry = iter->ent;
169  *	if (entry->type != event_<call>->event.type) {
179  * ------(or, for event class)------
183  *	field = (typeof(field))iter->ent;
192  * -------
195  * This is the method used to print the raw event to the trace
208 	struct trace_seq *s = &iter->seq;				\
209 	struct trace_seq __maybe_unused *p = &iter->tmp_seq;		\
213 	field = (typeof(field))iter->ent;				\
234 			 struct trace_event *event)			\
238 	struct trace_seq *p = &iter->tmp_seq;				\
240 	entry = iter->ent;						\
242 	if (entry->type != event_##call.event.type) {			\
270 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  argument
298  * Override the macros in the event tracepoint header <trace/events/XXX.h>
308  *	struct trace_event_call *event_call = trace_file->event_call;
310  *	unsigned long eflags = trace_file->flags;
312  *	struct ring_buffer_event *event;
313  *	struct trace_event_raw_<call> *entry; <-- defined in stage 1
331  *	event = trace_event_buffer_lock_reserve(&buffer, trace_file,
332  *				  event_<call>->event.type,
335  *	if (!event)
337  *	entry	= ring_buffer_event_data(event);
339  *	{ <assign>; }  <-- Here we assign the entries by the __field and
346  *		     &trace_file->flags))
347  *		ring_buffer_discard_commit(buffer, event);
348  *	else if (!filter_check_discard(trace_file, entry, buffer, event))
349  *		trace_buffer_unlock_commit(buffer, event, irq_flags, pc);
356  *	.trace			= trace_raw_output_<call>, <-- stage 2
375  *	.event			= &ftrace_event_type_<call>,
499 	.event.funcs		= &trace_event_type_funcs_##template,	\
516 	.event.funcs		= &trace_event_type_funcs_##call,	\