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