Merge tag 'tag-chrome-platform-for-v4.21' of git://git.kernel.org/pub/scm/linux/kerne...
[linux-2.6-microblaze.git] / include / trace / define_trace.h
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 */