tracing: Move tracepoint callbacks from declaration to definition
[linux-2.6.git] / include / trace / define_trace.h
1 /*
2  * Trace files that want to automate creationg 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_FN
30 #define TRACE_EVENT_FN(name, proto, args, tstruct,              \
31                 assign, print, reg, unreg)                      \
32         DEFINE_TRACE_FN(name, reg, unreg)
33
34 #undef DECLARE_TRACE
35 #define DECLARE_TRACE(name, proto, args)        \
36         DEFINE_TRACE(name)
37
38 #undef TRACE_INCLUDE
39 #undef __TRACE_INCLUDE
40
41 #ifndef TRACE_INCLUDE_FILE
42 # define TRACE_INCLUDE_FILE TRACE_SYSTEM
43 # define UNDEF_TRACE_INCLUDE_FILE
44 #endif
45
46 #ifndef TRACE_INCLUDE_PATH
47 # define __TRACE_INCLUDE(system) <trace/events/system.h>
48 # define UNDEF_TRACE_INCLUDE_PATH
49 #else
50 # define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h)
51 #endif
52
53 # define TRACE_INCLUDE(system) __TRACE_INCLUDE(system)
54
55 /* Let the trace headers be reread */
56 #define TRACE_HEADER_MULTI_READ
57
58 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
59
60 #ifdef CONFIG_EVENT_TRACING
61 #include <trace/ftrace.h>
62 #endif
63
64 #undef TRACE_HEADER_MULTI_READ
65
66 /* Only undef what we defined in this file */
67 #ifdef UNDEF_TRACE_INCLUDE_FILE
68 # undef TRACE_INCLUDE_FILE
69 # undef UNDEF_TRACE_INCLUDE_FILE
70 #endif
71
72 #ifdef UNDEF_TRACE_INCLUDE_PATH
73 # undef TRACE_INCLUDE_PATH
74 # undef UNDEF_TRACE_INCLUDE_PATH
75 #endif
76
77 /* We may be processing more files */
78 #define CREATE_TRACE_POINTS
79
80 #endif /* CREATE_TRACE_POINTS */