| 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 */ |