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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_FORMAT
  30 #define TRACE_FORMAT(name, proto, args, print)  \
  31         DEFINE_TRACE(name)
  32
  33 #undef DECLARE_TRACE
  34 #define DECLARE_TRACE(name, proto, args)        \
  35         DEFINE_TRACE(name)
  36
  37 #undef TRACE_INCLUDE
  38 #undef __TRACE_INCLUDE
  39
  40 #ifndef TRACE_INCLUDE_FILE
  41 # define TRACE_INCLUDE_FILE TRACE_SYSTEM
  42 # define UNDEF_TRACE_INCLUDE_FILE
  43 #endif
  44
  45 #ifndef TRACE_INCLUDE_PATH
  46 # define __TRACE_INCLUDE(system) <trace/events/system.h>
  47 # define UNDEF_TRACE_INCLUDE_FILE
  48 #else
  49 # define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h)
  50 #endif
  51
  52 # define TRACE_INCLUDE(system) __TRACE_INCLUDE(system)
  53
  54 /* Let the trace headers be reread */
  55 #define TRACE_HEADER_MULTI_READ
  56
  57 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
  58
  59 #ifdef CONFIG_EVENT_TRACER
  60 #include <trace/ftrace.h>
  61 #endif
  62
  63 #undef TRACE_HEADER_MULTI_READ
  64
  65 /* Only undef what we defined in this file */
  66 #ifdef UNDEF_TRACE_INCLUDE_FILE
  67 # undef TRACE_INCLUDE_PATH
  68 # undef UNDEF_TRACE_INCLUDE_FILE
  69 #endif
  70
  71 #ifdef UNDEF_TRACE_INCLUDE_FILE
  72 # undef TRACE_INCLUDE_PATH
  73 # undef UNDEF_TRACE_INCLUDE_FILE
  74 #endif
  75
  76 /* We may be processing more files */
  77 #define CREATE_TRACE_POINTS
  78
  79 #endif /* CREATE_TRACE_POINTS */