1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Trace files that want to automate creation of all tracepoints defined
4 * in their file should include this file. The following are macros that the
5 * trace file may define:
6 *
7 * TRACE_SYSTEM defines the system the tracepoint is for
8 *
9 * TRACE_INCLUDE_FILE if the file name is something other than TRACE_SYSTEM.h
10 * This macro may be defined to tell define_trace.h what file to include.
11 * Note, leave off the ".h".
12 *
13 * TRACE_INCLUDE_PATH if the path is something other than core kernel include/trace
14 * then this macro can define the path to use. Note, the path is relative to
15 * define_trace.h, not the file including it. Full path names for out of tree
16 * modules must be used.
17 */
18
19#ifdef CREATE_TRACE_POINTS
20
21/* Prevent recursion */
22#undef CREATE_TRACE_POINTS
23
24#include <linux/stringify.h>
25
26#undef TRACE_EVENT
27#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
28 DEFINE_TRACE(name)
29
30#undef TRACE_EVENT_CONDITION
31#define TRACE_EVENT_CONDITION(name, proto, args, cond, tstruct, assign, print) \
32 TRACE_EVENT(name, \
33 PARAMS(proto), \
34 PARAMS(args), \
35 PARAMS(tstruct), \
36 PARAMS(assign), \
37 PARAMS(print))
38
39#undef TRACE_EVENT_FN
40#define TRACE_EVENT_FN(name, proto, args, tstruct, \
41 assign, print, reg, unreg) \
42 DEFINE_TRACE_FN(name, reg, unreg)
43
44#undef TRACE_EVENT_FN_COND
45#define TRACE_EVENT_FN_COND(name, proto, args, cond, tstruct, \
46 assign, print, reg, unreg) \
47 DEFINE_TRACE_FN(name, reg, unreg)
48
49#undef DEFINE_EVENT
50#define DEFINE_EVENT(template, name, proto, args) \
51 DEFINE_TRACE(name)
52
53#undef DEFINE_EVENT_FN
54#define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg) \
55 DEFINE_TRACE_FN(name, reg, unreg)
56
57#undef DEFINE_EVENT_PRINT
58#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
59 DEFINE_TRACE(name)
60
61#undef DEFINE_EVENT_CONDITION
62#define DEFINE_EVENT_CONDITION(template, name, proto, args, cond) \
63 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
64
65#undef DECLARE_TRACE
66#define DECLARE_TRACE(name, proto, args) \
67 DEFINE_TRACE(name)
68
69#undef TRACE_INCLUDE
70#undef __TRACE_INCLUDE
71
72#ifndef TRACE_INCLUDE_FILE
73# define TRACE_INCLUDE_FILE TRACE_SYSTEM
74# define UNDEF_TRACE_INCLUDE_FILE
75#endif
76
77#ifndef TRACE_INCLUDE_PATH
78# define __TRACE_INCLUDE(system) <trace/events/system.h>
79# define UNDEF_TRACE_INCLUDE_PATH
80#else
81# define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h)
82#endif
83
84# define TRACE_INCLUDE(system) __TRACE_INCLUDE(system)
85
86/* Let the trace headers be reread */
87#define TRACE_HEADER_MULTI_READ
88
89#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
90
91/* Make all open coded DECLARE_TRACE nops */
92#undef DECLARE_TRACE
93#define DECLARE_TRACE(name, proto, args)
94
95#ifdef TRACEPOINTS_ENABLED
96#include <trace/trace_events.h>
97#include <trace/perf.h>
98#include <trace/bpf_probe.h>
99#endif
100
101#undef TRACE_EVENT
102#undef TRACE_EVENT_FN
103#undef TRACE_EVENT_FN_COND
104#undef TRACE_EVENT_CONDITION
105#undef DECLARE_EVENT_CLASS
106#undef DEFINE_EVENT
107#undef DEFINE_EVENT_FN
108#undef DEFINE_EVENT_PRINT
109#undef DEFINE_EVENT_CONDITION
110#undef TRACE_HEADER_MULTI_READ
111#undef DECLARE_TRACE
112
113/* Only undef what we defined in this file */
114#ifdef UNDEF_TRACE_INCLUDE_FILE
115# undef TRACE_INCLUDE_FILE
116# undef UNDEF_TRACE_INCLUDE_FILE
117#endif
118
119#ifdef UNDEF_TRACE_INCLUDE_PATH
120# undef TRACE_INCLUDE_PATH
121# undef UNDEF_TRACE_INCLUDE_PATH
122#endif
123
124/* We may be processing more files */
125#define CREATE_TRACE_POINTS
126
127#endif /* CREATE_TRACE_POINTS */
128