1 /* 2 * Trace files that want to automate creation 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_CONDITION 30 #define TRACE_EVENT_CONDITION(name, proto, args, cond, tstruct, assign, print) \ 31 TRACE_EVENT(name, \ 32 PARAMS(proto), \ 33 PARAMS(args), \ 34 PARAMS(tstruct), \ 35 PARAMS(assign), \ 36 PARAMS(print)) 37 38 #undef TRACE_EVENT_FN 39 #define TRACE_EVENT_FN(name, proto, args, tstruct, \ 40 assign, print, reg, unreg) \ 41 DEFINE_TRACE_FN(name, reg, unreg) 42 43 #undef TRACE_EVENT_FN_COND 44 #define TRACE_EVENT_FN_COND(name, proto, args, cond, tstruct, \ 45 assign, print, reg, unreg) \ 46 DEFINE_TRACE_FN(name, reg, unreg) 47 48 #undef DEFINE_EVENT 49 #define DEFINE_EVENT(template, name, proto, args) \ 50 DEFINE_TRACE(name) 51 52 #undef DEFINE_EVENT_FN 53 #define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg) \ 54 DEFINE_TRACE_FN(name, reg, unreg) 55 56 #undef DEFINE_EVENT_PRINT 57 #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ 58 DEFINE_TRACE(name) 59 60 #undef DEFINE_EVENT_CONDITION 61 #define DEFINE_EVENT_CONDITION(template, name, proto, args, cond) \ 62 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) 63 64 #undef DECLARE_TRACE 65 #define DECLARE_TRACE(name, proto, args) \ 66 DEFINE_TRACE(name) 67 68 #undef TRACE_INCLUDE 69 #undef __TRACE_INCLUDE 70 71 #ifndef TRACE_INCLUDE_FILE 72 # define TRACE_INCLUDE_FILE TRACE_SYSTEM 73 # define UNDEF_TRACE_INCLUDE_FILE 74 #endif 75 76 #ifndef TRACE_INCLUDE_PATH 77 # define __TRACE_INCLUDE(system) <trace/events/system.h> 78 # define UNDEF_TRACE_INCLUDE_PATH 79 #else 80 # define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h) 81 #endif 82 83 # define TRACE_INCLUDE(system) __TRACE_INCLUDE(system) 84 85 /* Let the trace headers be reread */ 86 #define TRACE_HEADER_MULTI_READ 87 88 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 89 90 /* Make all open coded DECLARE_TRACE nops */ 91 #undef DECLARE_TRACE 92 #define DECLARE_TRACE(name, proto, args) 93 94 #ifdef TRACEPOINTS_ENABLED 95 #include <trace/trace_events.h> 96 #include <trace/perf.h> 97 #endif 98 99 #undef TRACE_EVENT 100 #undef TRACE_EVENT_FN 101 #undef TRACE_EVENT_FN_COND 102 #undef TRACE_EVENT_CONDITION 103 #undef DECLARE_EVENT_CLASS 104 #undef DEFINE_EVENT 105 #undef DEFINE_EVENT_FN 106 #undef DEFINE_EVENT_PRINT 107 #undef DEFINE_EVENT_CONDITION 108 #undef TRACE_HEADER_MULTI_READ 109 #undef DECLARE_TRACE 110 111 /* Only undef what we defined in this file */ 112 #ifdef UNDEF_TRACE_INCLUDE_FILE 113 # undef TRACE_INCLUDE_FILE 114 # undef UNDEF_TRACE_INCLUDE_FILE 115 #endif 116 117 #ifdef UNDEF_TRACE_INCLUDE_PATH 118 # undef TRACE_INCLUDE_PATH 119 # undef UNDEF_TRACE_INCLUDE_PATH 120 #endif 121 122 /* We may be processing more files */ 123 #define CREATE_TRACE_POINTS 124 125 #endif /* CREATE_TRACE_POINTS */ 126