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_FN 30 #define TRACE_EVENT_FN(name, proto, args, tstruct, \ 31 assign, print, reg, unreg) \ 32 DEFINE_TRACE_FN(name, reg, unreg) 33 34 #undef DEFINE_EVENT 35 #define DEFINE_EVENT(template, name, proto, args) \ 36 DEFINE_TRACE(name) 37 38 #undef DEFINE_EVENT_PRINT 39 #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ 40 DEFINE_TRACE(name) 41 42 #undef DECLARE_TRACE 43 #define DECLARE_TRACE(name, proto, args) \ 44 DEFINE_TRACE(name) 45 46 #undef TRACE_INCLUDE 47 #undef __TRACE_INCLUDE 48 49 #ifndef TRACE_INCLUDE_FILE 50 # define TRACE_INCLUDE_FILE TRACE_SYSTEM 51 # define UNDEF_TRACE_INCLUDE_FILE 52 #endif 53 54 #ifndef TRACE_INCLUDE_PATH 55 # define __TRACE_INCLUDE(system) <trace/events/system.h> 56 # define UNDEF_TRACE_INCLUDE_PATH 57 #else 58 # define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h) 59 #endif 60 61 # define TRACE_INCLUDE(system) __TRACE_INCLUDE(system) 62 63 /* Let the trace headers be reread */ 64 #define TRACE_HEADER_MULTI_READ 65 66 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 67 68 /* Make all open coded DECLARE_TRACE nops */ 69 #undef DECLARE_TRACE 70 #define DECLARE_TRACE(name, proto, args) 71 72 #ifdef CONFIG_EVENT_TRACING 73 #include <trace/ftrace.h> 74 #endif 75 76 #undef TRACE_EVENT 77 #undef TRACE_EVENT_FN 78 #undef DECLARE_EVENT_CLASS 79 #undef DEFINE_EVENT 80 #undef DEFINE_EVENT_PRINT 81 #undef TRACE_HEADER_MULTI_READ 82 #undef DECLARE_TRACE 83 84 /* Only undef what we defined in this file */ 85 #ifdef UNDEF_TRACE_INCLUDE_FILE 86 # undef TRACE_INCLUDE_FILE 87 # undef UNDEF_TRACE_INCLUDE_FILE 88 #endif 89 90 #ifdef UNDEF_TRACE_INCLUDE_PATH 91 # undef TRACE_INCLUDE_PATH 92 # undef UNDEF_TRACE_INCLUDE_PATH 93 #endif 94 95 /* We may be processing more files */ 96 #define CREATE_TRACE_POINTS 97 98 #endif /* CREATE_TRACE_POINTS */ 99