include/lttng/tracepoint-event.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5  */
   6
   7 #ifdef TRACEPOINT_CREATE_PROBES
   8
   9 #define __tp_stringify1(x)      #x
  10 #define __tp_stringify(x)       __tp_stringify1(x)
  11
  12 #undef TRACEPOINT_EVENT_INSTANCE
  13 #define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)
  14
  15 #undef TRACEPOINT_EVENT
  16 #define TRACEPOINT_EVENT(_provider, _name, _args, _fields)              \
  17         TRACEPOINT_EVENT_CLASS(_provider, _name, _TP_PARAMS(_args),     \
  18                         _TP_PARAMS(_fields))                            \
  19         TRACEPOINT_EVENT_INSTANCE(_provider, _name, _name,              \
  20                         _TP_PARAMS(_args))
  21
  22
  23 #undef TRACEPOINT_CREATE_PROBES
  24
  25 #define TRACEPOINT_HEADER_MULTI_READ
  26
  27 /*
  28  * LTTng-UST 2.0 expects TRACEPOINT_INCLUDE_FILE, but this approach has
  29  * the unwanted side-effect of expanding any macro name found within
  30  * TRACEPOINT_INCLUDE_FILE.
  31  *
  32  * Starting from LTTng-UST 2.1, we expect the TRACEPOINT_INCLUDE to be
  33  * defined by probes as a string. We still check for
  34  * TRACEPOINT_INCLUDE_FILE for API backward compatibility.
  35  */
  36 #ifdef TRACEPOINT_INCLUDE_FILE
  37 #define TRACEPOINT_INCLUDE      __tp_stringify(TRACEPOINT_INCLUDE_FILE)
  38 #endif
  39
  40 #include TRACEPOINT_INCLUDE
  41
  42 #include <lttng/ust-tracepoint-event.h>
  43
  44 #undef TRACEPOINT_HEADER_MULTI_READ
  45 #undef TRACEPOINT_INCLUDE_FILE
  46 #undef TRACEPOINT_INCLUDE
  47
  48 #define TRACEPOINT_CREATE_PROBES
  49
  50 /*
  51  * Put back definitions to the state they were when defined by
  52  * tracepoint.h.
  53  */
  54 #undef TP_ARGS
  55 #define TP_ARGS(...)       __VA_ARGS__
  56
  57 #undef TRACEPOINT_EVENT
  58 #define TRACEPOINT_EVENT(provider, name, args, fields)                  \
  59         _DECLARE_TRACEPOINT(provider, name, _TP_PARAMS(args))           \
  60         _DEFINE_TRACEPOINT(provider, name, _TP_PARAMS(args))
  61
  62 #undef TRACEPOINT_EVENT_CLASS
  63 #define TRACEPOINT_EVENT_CLASS(provider, name, args, fields)
  64
  65 #undef TRACEPOINT_EVENT_INSTANCE
  66 #define TRACEPOINT_EVENT_INSTANCE(provider, _template, name, args)      \
  67         _DECLARE_TRACEPOINT(provider, name, _TP_PARAMS(args))           \
  68         _DEFINE_TRACEPOINT(provider, name, _TP_PARAMS(args))
  69
  70 #undef TRACEPOINT_LOGLEVEL
  71 #define TRACEPOINT_LOGLEVEL(provider, name, loglevel)
  72
  73 #undef TRACEPOINT_MODEL_EMF_URI
  74 #define TRACEPOINT_MODEL_EMF_URI(provider, name, uri)
  75
  76 #endif /* TRACEPOINT_CREATE_PROBES */