mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 08:36:43 +07:00
163363455b
Sometimes we want to define a tracepoint as a do-nothing function. So I introduce TRACE_EVENT_NOP, DECLARE_EVENT_CLASS_NOP and DEFINE_EVENT_NOP for this kind of usage. Link: http://lkml.kernel.org/r/1553602391-11926-2-git-send-email-laoar.shao@gmail.com Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Trace files that want to automate creation of all tracepoints defined
|
|
* in their file should include this file. The following are macros that the
|
|
* trace file may define:
|
|
*
|
|
* TRACE_SYSTEM defines the system the tracepoint is for
|
|
*
|
|
* TRACE_INCLUDE_FILE if the file name is something other than TRACE_SYSTEM.h
|
|
* This macro may be defined to tell define_trace.h what file to include.
|
|
* Note, leave off the ".h".
|
|
*
|
|
* TRACE_INCLUDE_PATH if the path is something other than core kernel include/trace
|
|
* then this macro can define the path to use. Note, the path is relative to
|
|
* define_trace.h, not the file including it. Full path names for out of tree
|
|
* modules must be used.
|
|
*/
|
|
|
|
#ifdef CREATE_TRACE_POINTS
|
|
|
|
/* Prevent recursion */
|
|
#undef CREATE_TRACE_POINTS
|
|
|
|
#include <linux/stringify.h>
|
|
|
|
#undef TRACE_EVENT
|
|
#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
|
|
DEFINE_TRACE(name)
|
|
|
|
#undef TRACE_EVENT_CONDITION
|
|
#define TRACE_EVENT_CONDITION(name, proto, args, cond, tstruct, assign, print) \
|
|
TRACE_EVENT(name, \
|
|
PARAMS(proto), \
|
|
PARAMS(args), \
|
|
PARAMS(tstruct), \
|
|
PARAMS(assign), \
|
|
PARAMS(print))
|
|
|
|
#undef TRACE_EVENT_FN
|
|
#define TRACE_EVENT_FN(name, proto, args, tstruct, \
|
|
assign, print, reg, unreg) \
|
|
DEFINE_TRACE_FN(name, reg, unreg)
|
|
|
|
#undef TRACE_EVENT_FN_COND
|
|
#define TRACE_EVENT_FN_COND(name, proto, args, cond, tstruct, \
|
|
assign, print, reg, unreg) \
|
|
DEFINE_TRACE_FN(name, reg, unreg)
|
|
|
|
#undef TRACE_EVENT_NOP
|
|
#define TRACE_EVENT_NOP(name, proto, args, struct, assign, print)
|
|
|
|
#undef DEFINE_EVENT_NOP
|
|
#define DEFINE_EVENT_NOP(template, name, proto, args)
|
|
|
|
#undef DEFINE_EVENT
|
|
#define DEFINE_EVENT(template, name, proto, args) \
|
|
DEFINE_TRACE(name)
|
|
|
|
#undef DEFINE_EVENT_FN
|
|
#define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg) \
|
|
DEFINE_TRACE_FN(name, reg, unreg)
|
|
|
|
#undef DEFINE_EVENT_PRINT
|
|
#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
|
|
DEFINE_TRACE(name)
|
|
|
|
#undef DEFINE_EVENT_CONDITION
|
|
#define DEFINE_EVENT_CONDITION(template, name, proto, args, cond) \
|
|
DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
|
|
|
|
#undef DECLARE_TRACE
|
|
#define DECLARE_TRACE(name, proto, args) \
|
|
DEFINE_TRACE(name)
|
|
|
|
#undef TRACE_INCLUDE
|
|
#undef __TRACE_INCLUDE
|
|
|
|
#ifndef TRACE_INCLUDE_FILE
|
|
# define TRACE_INCLUDE_FILE TRACE_SYSTEM
|
|
# define UNDEF_TRACE_INCLUDE_FILE
|
|
#endif
|
|
|
|
#ifndef TRACE_INCLUDE_PATH
|
|
# define __TRACE_INCLUDE(system) <trace/events/system.h>
|
|
# define UNDEF_TRACE_INCLUDE_PATH
|
|
#else
|
|
# define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h)
|
|
#endif
|
|
|
|
# define TRACE_INCLUDE(system) __TRACE_INCLUDE(system)
|
|
|
|
/* Let the trace headers be reread */
|
|
#define TRACE_HEADER_MULTI_READ
|
|
|
|
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
|
|
|
|
/* Make all open coded DECLARE_TRACE nops */
|
|
#undef DECLARE_TRACE
|
|
#define DECLARE_TRACE(name, proto, args)
|
|
|
|
#ifdef TRACEPOINTS_ENABLED
|
|
#include <trace/trace_events.h>
|
|
#include <trace/perf.h>
|
|
#include <trace/bpf_probe.h>
|
|
#endif
|
|
|
|
#undef TRACE_EVENT
|
|
#undef TRACE_EVENT_FN
|
|
#undef TRACE_EVENT_FN_COND
|
|
#undef TRACE_EVENT_CONDITION
|
|
#undef TRACE_EVENT_NOP
|
|
#undef DEFINE_EVENT_NOP
|
|
#undef DECLARE_EVENT_CLASS
|
|
#undef DEFINE_EVENT
|
|
#undef DEFINE_EVENT_FN
|
|
#undef DEFINE_EVENT_PRINT
|
|
#undef DEFINE_EVENT_CONDITION
|
|
#undef TRACE_HEADER_MULTI_READ
|
|
#undef DECLARE_TRACE
|
|
|
|
/* Only undef what we defined in this file */
|
|
#ifdef UNDEF_TRACE_INCLUDE_FILE
|
|
# undef TRACE_INCLUDE_FILE
|
|
# undef UNDEF_TRACE_INCLUDE_FILE
|
|
#endif
|
|
|
|
#ifdef UNDEF_TRACE_INCLUDE_PATH
|
|
# undef TRACE_INCLUDE_PATH
|
|
# undef UNDEF_TRACE_INCLUDE_PATH
|
|
#endif
|
|
|
|
/* We may be processing more files */
|
|
#define CREATE_TRACE_POINTS
|
|
|
|
#endif /* CREATE_TRACE_POINTS */
|