include/lttng/tracepoint-event.h

   1 /*
   2  * Copyright (c) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to deal
   6  * in the Software without restriction, including without limitation the rights
   7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  * copies of the Software, and to permit persons to whom the Software is
   9  * furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #ifdef TRACEPOINT_CREATE_PROBES
  24
  25 #define __tp_stringify1(x)      #x
  26 #define __tp_stringify(x)       __tp_stringify1(x)
  27
  28 #undef TRACEPOINT_EVENT_INSTANCE
  29 #define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)
  30
  31 #undef TRACEPOINT_EVENT
  32 #define TRACEPOINT_EVENT(_provider, _name, _args, _fields)              \
  33         TRACEPOINT_EVENT_CLASS(_provider, _name, _TP_PARAMS(_args),     \
  34                         _TP_PARAMS(_fields))                            \
  35         TRACEPOINT_EVENT_INSTANCE(_provider, _name, _name,              \
  36                         _TP_PARAMS(_args))
  37
  38
  39 #undef TRACEPOINT_CREATE_PROBES
  40
  41 #define TRACEPOINT_HEADER_MULTI_READ
  42
  43 /*
  44  * LTTng-UST 2.0 expects TRACEPOINT_INCLUDE_FILE, but this approach has
  45  * the unwanted side-effect of expanding any macro name found within
  46  * TRACEPOINT_INCLUDE_FILE.
  47  *
  48  * Starting from LTTng-UST 2.1, we expect the TRACEPOINT_INCLUDE to be
  49  * defined by probes as a string. We still check for
  50  * TRACEPOINT_INCLUDE_FILE for API backward compatibility.
  51  */
  52 #ifdef TRACEPOINT_INCLUDE_FILE
  53 #define TRACEPOINT_INCLUDE      __tp_stringify(TRACEPOINT_INCLUDE_FILE)
  54 #endif
  55
  56 #include TRACEPOINT_INCLUDE
  57
  58 #include <lttng/ust-tracepoint-event.h>
  59
  60 #undef TRACEPOINT_HEADER_MULTI_READ
  61 #undef TRACEPOINT_INCLUDE_FILE
  62 #undef TRACEPOINT_INCLUDE
  63
  64 #define TRACEPOINT_CREATE_PROBES
  65
  66 /*
  67  * Put back definitions to the state they were when defined by
  68  * tracepoint.h.
  69  */
  70 #undef TP_ARGS
  71 #define TP_ARGS(...)       __VA_ARGS__
  72
  73 #undef TRACEPOINT_EVENT
  74 #define TRACEPOINT_EVENT(provider, name, args, fields)                  \
  75         _DECLARE_TRACEPOINT(provider, name, _TP_PARAMS(args))           \
  76         _DEFINE_TRACEPOINT(provider, name, _TP_PARAMS(args))
  77
  78 #undef TRACEPOINT_EVENT_CLASS
  79 #define TRACEPOINT_EVENT_CLASS(provider, name, args, fields)
  80
  81 #undef TRACEPOINT_EVENT_INSTANCE
  82 #define TRACEPOINT_EVENT_INSTANCE(provider, _template, name, args)      \
  83         _DECLARE_TRACEPOINT(provider, name, _TP_PARAMS(args))           \
  84         _DEFINE_TRACEPOINT(provider, name, _TP_PARAMS(args))
  85
  86 #undef TRACEPOINT_LOGLEVEL
  87 #define TRACEPOINT_LOGLEVEL(provider, name, loglevel)
  88
  89 #undef TRACEPOINT_MODEL_EMF_URI
  90 #define TRACEPOINT_MODEL_EMF_URI(provider, name, uri)
  91
  92 #endif /* TRACEPOINT_CREATE_PROBES */