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