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Commit 6ff9a64d authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt
Browse files

tracing: do not translate event helper macros in print format 



By moving the macro that creates the print format code above the
defining of the event macro helpers (__get_str, __print_symbolic,
and __get_dynamic_array), we get a little cleaner print format.

Instead of:

  (char *)((void *)REC + REC->__data_loc_name)

we get:

   __get_str(name)

Instead of:

   ({ static const struct trace_print_flags symbols[] = { { HI_SOFTIRQ, "HI" }, {

we get:

   __print_symbolic(REC->vec, { HI_SOFTIRQ, "HI" }, {

Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent bc5c6c04

include/trace/ftrace.h

+81 −77
Original line number Diff line number Diff line
@@ -80,6 +80,87 @@ 


#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)



/*

 * Setup the showing format of trace point.

 *

 * int

 * ftrace_format_##call(struct trace_seq *s)

 * {

 *	struct ftrace_raw_##call field;

 *	int ret;

 *

 *	ret = trace_seq_printf(s, #type " " #item ";"

 *			       " offset:%u; size:%u;\n",

 *			       offsetof(struct ftrace_raw_##call, item),

 *			       sizeof(field.type));

 *

 * }

 */



#undef TP_STRUCT__entry

#define TP_STRUCT__entry(args...) args



#undef __field

#define __field(type, item)					\

	ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t"	\

			       "offset:%u;\tsize:%u;\n",		\

			       (unsigned int)offsetof(typeof(field), item), \

			       (unsigned int)sizeof(field.item));	\

	if (!ret)							\

		return 0;



#undef __array

#define __array(type, item, len)						\

	ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t"	\

			       "offset:%u;\tsize:%u;\n",		\

			       (unsigned int)offsetof(typeof(field), item), \

			       (unsigned int)sizeof(field.item));	\

	if (!ret)							\

		return 0;



#undef __dynamic_array

#define __dynamic_array(type, item, len)				       \

	ret = trace_seq_printf(s, "\tfield:__data_loc " #item ";\t"	       \

			       "offset:%u;\tsize:%u;\n",		       \

			       (unsigned int)offsetof(typeof(field),	       \

					__data_loc_##item),		       \

			       (unsigned int)sizeof(field.__data_loc_##item)); \

	if (!ret)							       \

		return 0;



#undef __string

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



#undef __entry

#define __entry REC



#undef __print_symbolic

#undef __get_dynamic_array

#undef __get_str



#undef TP_printk

#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)



#undef TP_fast_assign

#define TP_fast_assign(args...) args



#undef TRACE_EVENT

#define TRACE_EVENT(call, proto, args, tstruct, func, print)		\

static int								\

ftrace_format_##call(struct trace_seq *s)				\

{									\

	struct ftrace_raw_##call field __attribute__((unused));		\

	int ret = 0;							\

									\

	tstruct;							\

									\

	trace_seq_printf(s, "\nprint fmt: " print);			\

									\

	return ret;							\

}



#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)



/*

 * Stage 3 of the trace events.

 *
@@ -179,83 +260,6 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \ 
	

#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)



/*

 * Setup the showing format of trace point.

 *

 * int

 * ftrace_format_##call(struct trace_seq *s)

 * {

 *	struct ftrace_raw_##call field;

 *	int ret;

 *

 *	ret = trace_seq_printf(s, #type " " #item ";"

 *			       " offset:%u; size:%u;\n",

 *			       offsetof(struct ftrace_raw_##call, item),

 *			       sizeof(field.type));

 *

 * }

 */



#undef TP_STRUCT__entry

#define TP_STRUCT__entry(args...) args



#undef __field

#define __field(type, item)					\

	ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t"	\

			       "offset:%u;\tsize:%u;\n",		\

			       (unsigned int)offsetof(typeof(field), item), \

			       (unsigned int)sizeof(field.item));	\

	if (!ret)							\

		return 0;



#undef __array

#define __array(type, item, len)						\

	ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t"	\

			       "offset:%u;\tsize:%u;\n",		\

			       (unsigned int)offsetof(typeof(field), item), \

			       (unsigned int)sizeof(field.item));	\

	if (!ret)							\

		return 0;



#undef __dynamic_array

#define __dynamic_array(type, item, len)				       \

	ret = trace_seq_printf(s, "\tfield:__data_loc " #item ";\t"	       \

			       "offset:%u;\tsize:%u;\n",		       \

			       (unsigned int)offsetof(typeof(field),	       \

					__data_loc_##item),		       \

			       (unsigned int)sizeof(field.__data_loc_##item)); \

	if (!ret)							       \

		return 0;



#undef __string

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



#undef __entry

#define __entry REC



#undef TP_printk

#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)



#undef TP_fast_assign

#define TP_fast_assign(args...) args



#undef TRACE_EVENT

#define TRACE_EVENT(call, proto, args, tstruct, func, print)		\

static int								\

ftrace_format_##call(struct trace_seq *s)				\

{									\

	struct ftrace_raw_##call field __attribute__((unused));		\

	int ret = 0;							\

									\

	tstruct;							\

									\

	trace_seq_printf(s, "\nprint fmt: " print);			\

									\

	return ret;							\

}



#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)



#undef __field

#define __field(type, item)						\

	ret = trace_define_field(event_call, #type, #item,		\