| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|
| 2 | /* |
|---|
| 3 | * Trace files that want to automate creation of all tracepoints defined |
|---|
| 4 | * in their file should include this file. The following are macros that the |
|---|
| 5 | * trace file may define: |
|---|
| 6 | * |
|---|
| 7 | * TRACE_SYSTEM defines the system the tracepoint is for |
|---|
| 8 | * |
|---|
| 9 | * TRACE_INCLUDE_FILE if the file name is something other than TRACE_SYSTEM.h |
|---|
| 10 | * This macro may be defined to tell define_trace.h what file to include. |
|---|
| 11 | * Note, leave off the ".h". |
|---|
| 12 | * |
|---|
| 13 | * TRACE_INCLUDE_PATH if the path is something other than core kernel include/trace |
|---|
| 14 | * then this macro can define the path to use. Note, the path is relative to |
|---|
| 15 | * define_trace.h, not the file including it. Full path names for out of tree |
|---|
| 16 | * modules must be used. |
|---|
| 17 | */ |
|---|
| 18 | |
|---|
| 19 | #ifdef CREATE_TRACE_POINTS |
|---|
| 20 | |
|---|
| 21 | /* Prevent recursion */ |
|---|
| 22 | #undef CREATE_TRACE_POINTS |
|---|
| 23 | |
|---|
| 24 | #include <linux/stringify.h> |
|---|
| 25 | |
|---|
| 26 | #undef TRACE_EVENT |
|---|
| 27 | #define TRACE_EVENT(name, proto, args, tstruct, assign, print) \ |
|---|
| 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) |
|---|
| 29 | |
|---|
| 30 | #undef TRACE_EVENT_CONDITION |
|---|
| 31 | #define TRACE_EVENT_CONDITION(name, proto, args, cond, tstruct, assign, print) \ |
|---|
| 32 | TRACE_EVENT(name, \ |
|---|
| 33 | PARAMS(proto), \ |
|---|
| 34 | PARAMS(args), \ |
|---|
| 35 | PARAMS(tstruct), \ |
|---|
| 36 | PARAMS(assign), \ |
|---|
| 37 | PARAMS(print)) |
|---|
| 38 | |
|---|
| 39 | #undef TRACE_EVENT_FN |
|---|
| 40 | #define TRACE_EVENT_FN(name, proto, args, tstruct, \ |
|---|
| 41 | assign, print, reg, unreg) \ |
|---|
| 42 | DEFINE_TRACE_FN(name, reg, unreg, PARAMS(proto), PARAMS(args)) |
|---|
| 43 | |
|---|
| 44 | #undef TRACE_EVENT_FN_COND |
|---|
| 45 | #define TRACE_EVENT_FN_COND(name, proto, args, cond, tstruct, \ |
|---|
| 46 | assign, print, reg, unreg) \ |
|---|
| 47 | DEFINE_TRACE_FN(name, reg, unreg, PARAMS(proto), PARAMS(args)) |
|---|
| 48 | |
|---|
| 49 | #undef TRACE_EVENT_NOP |
|---|
| 50 | #define TRACE_EVENT_NOP(name, proto, args, struct, assign, print) |
|---|
| 51 | |
|---|
| 52 | #undef DEFINE_EVENT_NOP |
|---|
| 53 | #define DEFINE_EVENT_NOP(template, name, proto, args) |
|---|
| 54 | |
|---|
| 55 | #undef DEFINE_EVENT |
|---|
| 56 | #define DEFINE_EVENT(template, name, proto, args) \ |
|---|
| 57 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) |
|---|
| 58 | |
|---|
| 59 | #undef DEFINE_EVENT_FN |
|---|
| 60 | #define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg) \ |
|---|
| 61 | DEFINE_TRACE_FN(name, reg, unreg, PARAMS(proto), PARAMS(args)) |
|---|
| 62 | |
|---|
| 63 | #undef DEFINE_EVENT_PRINT |
|---|
| 64 | #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ |
|---|
| 65 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) |
|---|
| 66 | |
|---|
| 67 | #undef DEFINE_EVENT_CONDITION |
|---|
| 68 | #define DEFINE_EVENT_CONDITION(template, name, proto, args, cond) \ |
|---|
| 69 | DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) |
|---|
| 70 | |
|---|
| 71 | #undef DECLARE_TRACE |
|---|
| 72 | #define DECLARE_TRACE(name, proto, args) \ |
|---|
| 73 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) |
|---|
| 74 | |
|---|
| 75 | #undef TRACE_INCLUDE |
|---|
| 76 | #undef __TRACE_INCLUDE |
|---|
| 77 | |
|---|
| 78 | #ifndef TRACE_INCLUDE_FILE |
|---|
| 79 | # define TRACE_INCLUDE_FILE TRACE_SYSTEM |
|---|
| 80 | # define UNDEF_TRACE_INCLUDE_FILE |
|---|
| 81 | #endif |
|---|
| 82 | |
|---|
| 83 | #ifndef TRACE_INCLUDE_PATH |
|---|
| 84 | # define __TRACE_INCLUDE(system) <trace/events/system.h> |
|---|
| 85 | # define UNDEF_TRACE_INCLUDE_PATH |
|---|
| 86 | #else |
|---|
| 87 | # define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h) |
|---|
| 88 | #endif |
|---|
| 89 | |
|---|
| 90 | # define TRACE_INCLUDE(system) __TRACE_INCLUDE(system) |
|---|
| 91 | |
|---|
| 92 | /* Let the trace headers be reread */ |
|---|
| 93 | #define TRACE_HEADER_MULTI_READ |
|---|
| 94 | |
|---|
| 95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
|---|
| 96 | |
|---|
| 97 | /* Make all open coded DECLARE_TRACE nops */ |
|---|
| 98 | #undef DECLARE_TRACE |
|---|
| 99 | #define DECLARE_TRACE(name, proto, args) |
|---|
| 100 | |
|---|
| 101 | #ifdef TRACEPOINTS_ENABLED |
|---|
| 102 | #include <trace/trace_events.h> |
|---|
| 103 | #include <trace/perf.h> |
|---|
| 104 | #include <trace/bpf_probe.h> |
|---|
| 105 | #endif |
|---|
| 106 | |
|---|
| 107 | #undef TRACE_EVENT |
|---|
| 108 | #undef TRACE_EVENT_FN |
|---|
| 109 | #undef TRACE_EVENT_FN_COND |
|---|
| 110 | #undef TRACE_EVENT_CONDITION |
|---|
| 111 | #undef TRACE_EVENT_NOP |
|---|
| 112 | #undef DEFINE_EVENT_NOP |
|---|
| 113 | #undef DECLARE_EVENT_CLASS |
|---|
| 114 | #undef DEFINE_EVENT |
|---|
| 115 | #undef DEFINE_EVENT_FN |
|---|
| 116 | #undef DEFINE_EVENT_PRINT |
|---|
| 117 | #undef DEFINE_EVENT_CONDITION |
|---|
| 118 | #undef TRACE_HEADER_MULTI_READ |
|---|
| 119 | #undef DECLARE_TRACE |
|---|
| 120 | |
|---|
| 121 | /* Only undef what we defined in this file */ |
|---|
| 122 | #ifdef UNDEF_TRACE_INCLUDE_FILE |
|---|
| 123 | # undef TRACE_INCLUDE_FILE |
|---|
| 124 | # undef UNDEF_TRACE_INCLUDE_FILE |
|---|
| 125 | #endif |
|---|
| 126 | |
|---|
| 127 | #ifdef UNDEF_TRACE_INCLUDE_PATH |
|---|
| 128 | # undef TRACE_INCLUDE_PATH |
|---|
| 129 | # undef UNDEF_TRACE_INCLUDE_PATH |
|---|
| 130 | #endif |
|---|
| 131 | |
|---|
| 132 | /* We may be processing more files */ |
|---|
| 133 | #define CREATE_TRACE_POINTS |
|---|
| 134 | |
|---|
| 135 | #endif /* CREATE_TRACE_POINTS */ |
|---|
| 136 | |
|---|
