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