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   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 DEFINE_EVENT
  35 #define DEFINE_EVENT(template, name, proto, args) \
  36         DEFINE_TRACE(name)
  37
  38 #undef DECLARE_TRACE
  39 #define DECLARE_TRACE(name, proto, args)        \
  40         DEFINE_TRACE(name)
  41
  42 #undef TRACE_INCLUDE
  43 #undef __TRACE_INCLUDE
  44
  45 #ifndef TRACE_INCLUDE_FILE
  46 # define TRACE_INCLUDE_FILE TRACE_SYSTEM
  47 # define UNDEF_TRACE_INCLUDE_FILE
  48 #endif
  49
  50 #ifndef TRACE_INCLUDE_PATH
  51 # define __TRACE_INCLUDE(system) <trace/events/system.h>
  52 # define UNDEF_TRACE_INCLUDE_PATH
  53 #else
  54 # define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h)
  55 #endif
  56
  57 # define TRACE_INCLUDE(system) __TRACE_INCLUDE(system)
  58
  59 /* Let the trace headers be reread */
  60 #define TRACE_HEADER_MULTI_READ
  61
  62 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
  63
  64 #ifdef CONFIG_EVENT_TRACING
  65 #include <trace/ftrace.h>
  66 #endif
  67
  68 #undef TRACE_EVENT
  69 #undef TRACE_EVENT_FN
  70 #undef TRACE_EVENT_TEMPLATE
  71 #undef DEFINE_EVENT
  72 #undef TRACE_HEADER_MULTI_READ
  73
  74 /* Only undef what we defined in this file */
  75 #ifdef UNDEF_TRACE_INCLUDE_FILE
  76 # undef TRACE_INCLUDE_FILE
  77 # undef UNDEF_TRACE_INCLUDE_FILE
  78 #endif
  79
  80 #ifdef UNDEF_TRACE_INCLUDE_PATH
  81 # undef TRACE_INCLUDE_PATH
  82 # undef UNDEF_TRACE_INCLUDE_PATH
  83 #endif
  84
  85 /* We may be processing more files */
  86 #define CREATE_TRACE_POINTS
  87
  88 #endif /* CREATE_TRACE_POINTS */