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 DECLARE_TRACE 30 #define DECLARE_TRACE(name, proto, args) \ 31 DEFINE_TRACE(name) 32 33 #undef TRACE_INCLUDE 34 #undef __TRACE_INCLUDE 35 36 #ifndef TRACE_INCLUDE_FILE 37 # define TRACE_INCLUDE_FILE TRACE_SYSTEM 38 # define UNDEF_TRACE_INCLUDE_FILE 39 #endif 40 41 #ifndef TRACE_INCLUDE_PATH 42 # define __TRACE_INCLUDE(system) <trace/events/system.h> 43 # define UNDEF_TRACE_INCLUDE_PATH 44 #else 45 # define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h) 46 #endif 47 48 # define TRACE_INCLUDE(system) __TRACE_INCLUDE(system) 49 50 /* Let the trace headers be reread */ 51 #define TRACE_HEADER_MULTI_READ 52 53 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 54 55 #ifdef CONFIG_EVENT_TRACING 56 #include <trace/ftrace.h> 57 #endif 58 59 #undef TRACE_HEADER_MULTI_READ 60 61 /* Only undef what we defined in this file */ 62 #ifdef UNDEF_TRACE_INCLUDE_FILE 63 # undef TRACE_INCLUDE_FILE 64 # undef UNDEF_TRACE_INCLUDE_FILE 65 #endif 66 67 #ifdef UNDEF_TRACE_INCLUDE_PATH 68 # undef TRACE_INCLUDE_PATH 69 # undef UNDEF_TRACE_INCLUDE_PATH 70 #endif 71 72 /* We may be processing more files */ 73 #define CREATE_TRACE_POINTS 74 75 #endif /* CREATE_TRACE_POINTS */ 76