| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | /* |
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| 3 | * Trace files that want to automate creation of all tracepoints defined |
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| 4 | * in their file should include this file. The following are macros that the |
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| 5 | * trace file may define: |
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| 6 | * |
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| 7 | * TRACE_SYSTEM defines the system the tracepoint is for |
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| 8 | * |
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| 9 | * TRACE_INCLUDE_FILE if the file name is something other than TRACE_SYSTEM.h |
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| 10 | * This macro may be defined to tell define_trace.h what file to include. |
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| 11 | * Note, leave off the ".h". |
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| 12 | * |
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| 13 | * TRACE_INCLUDE_PATH if the path is something other than core kernel include/trace |
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| 14 | * then this macro can define the path to use. Note, the path is relative to |
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| 15 | * define_trace.h, not the file including it. Full path names for out of tree |
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| 16 | * modules must be used. |
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| 17 | */ |
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| 18 | |
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| 19 | #ifdef CREATE_TRACE_POINTS |
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| 20 | |
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| 21 | /* Prevent recursion */ |
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| 22 | #undef CREATE_TRACE_POINTS |
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| 23 | |
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| 24 | #include <linux/stringify.h> |
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| 25 | |
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| 26 | #undef TRACE_EVENT |
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| 27 | #define TRACE_EVENT(name, proto, args, tstruct, assign, print) \ |
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| 28 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) |
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| 29 | |
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| 30 | #undef TRACE_EVENT_CONDITION |
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| 31 | #define TRACE_EVENT_CONDITION(name, proto, args, cond, tstruct, assign, print) \ |
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| 32 | TRACE_EVENT(name, \ |
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| 33 | PARAMS(proto), \ |
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| 34 | PARAMS(args), \ |
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| 35 | PARAMS(tstruct), \ |
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| 36 | PARAMS(assign), \ |
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| 37 | PARAMS(print)) |
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| 38 | |
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| 39 | #undef TRACE_EVENT_FN |
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| 40 | #define TRACE_EVENT_FN(name, proto, args, tstruct, \ |
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| 41 | assign, print, reg, unreg) \ |
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| 42 | DEFINE_TRACE_FN(name, reg, unreg, PARAMS(proto), PARAMS(args)) |
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| 43 | |
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| 44 | #undef TRACE_EVENT_FN_COND |
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| 45 | #define TRACE_EVENT_FN_COND(name, proto, args, cond, tstruct, \ |
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| 46 | assign, print, reg, unreg) \ |
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| 47 | DEFINE_TRACE_FN(name, reg, unreg, PARAMS(proto), PARAMS(args)) |
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| 48 | |
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| 49 | #undef TRACE_EVENT_SYSCALL |
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| 50 | #define TRACE_EVENT_SYSCALL(name, proto, args, struct, assign, print, reg, unreg) \ |
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| 51 | DEFINE_TRACE_SYSCALL(name, reg, unreg, PARAMS(proto), PARAMS(args)) |
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| 52 | |
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| 53 | #undef TRACE_EVENT_NOP |
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| 54 | #define TRACE_EVENT_NOP(name, proto, args, struct, assign, print) |
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| 55 | |
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| 56 | #undef DEFINE_EVENT_NOP |
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| 57 | #define DEFINE_EVENT_NOP(template, name, proto, args) |
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| 58 | |
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| 59 | #undef DEFINE_EVENT |
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| 60 | #define DEFINE_EVENT(template, name, proto, args) \ |
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| 61 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) |
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| 62 | |
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| 63 | #undef DEFINE_EVENT_FN |
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| 64 | #define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg) \ |
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| 65 | DEFINE_TRACE_FN(name, reg, unreg, PARAMS(proto), PARAMS(args)) |
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| 66 | |
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| 67 | #undef DEFINE_EVENT_PRINT |
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| 68 | #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ |
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| 69 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) |
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| 70 | |
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| 71 | #undef DEFINE_EVENT_CONDITION |
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| 72 | #define DEFINE_EVENT_CONDITION(template, name, proto, args, cond) \ |
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| 73 | DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) |
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| 74 | |
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| 75 | #undef DECLARE_TRACE |
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| 76 | #define DECLARE_TRACE(name, proto, args) \ |
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| 77 | DEFINE_TRACE(name##_tp, PARAMS(proto), PARAMS(args)) |
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| 78 | |
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| 79 | #undef DECLARE_TRACE_CONDITION |
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| 80 | #define DECLARE_TRACE_CONDITION(name, proto, args, cond) \ |
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| 81 | DEFINE_TRACE(name##_tp, PARAMS(proto), PARAMS(args)) |
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| 82 | |
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| 83 | #undef DECLARE_TRACE_EVENT |
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| 84 | #define DECLARE_TRACE_EVENT(name, proto, args) \ |
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| 85 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) |
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| 86 | |
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| 87 | #undef DECLARE_TRACE_EVENT_CONDITION |
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| 88 | #define DECLARE_TRACE_EVENT_CONDITION(name, proto, args, cond) \ |
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| 89 | DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) |
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| 90 | |
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| 91 | /* If requested, create helpers for calling these tracepoints from Rust. */ |
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| 92 | #ifdef CREATE_RUST_TRACE_POINTS |
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| 93 | #undef DEFINE_RUST_DO_TRACE |
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| 94 | #define DEFINE_RUST_DO_TRACE(name, proto, args) \ |
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| 95 | __DEFINE_RUST_DO_TRACE(name, PARAMS(proto), PARAMS(args)) |
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| 96 | #endif |
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| 97 | |
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| 98 | #undef TRACE_INCLUDE |
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| 99 | #undef __TRACE_INCLUDE |
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| 100 | |
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| 101 | #ifndef TRACE_INCLUDE_FILE |
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| 102 | # define TRACE_INCLUDE_FILE TRACE_SYSTEM |
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| 103 | # define UNDEF_TRACE_INCLUDE_FILE |
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| 104 | #endif |
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| 105 | |
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| 106 | #ifndef TRACE_INCLUDE_PATH |
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| 107 | # define __TRACE_INCLUDE(system) <trace/events/system.h> |
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| 108 | # define UNDEF_TRACE_INCLUDE_PATH |
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| 109 | #else |
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| 110 | # define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h) |
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| 111 | #endif |
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| 112 | |
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| 113 | # define TRACE_INCLUDE(system) __TRACE_INCLUDE(system) |
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| 114 | |
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| 115 | /* Let the trace headers be reread */ |
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| 116 | #define TRACE_HEADER_MULTI_READ |
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| 117 | |
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| 118 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
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| 119 | |
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| 120 | /* Make all open coded DECLARE_TRACE nops */ |
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| 121 | #undef DECLARE_TRACE |
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| 122 | #define DECLARE_TRACE(name, proto, args) |
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| 123 | #undef DECLARE_TRACE_CONDITION |
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| 124 | #define DECLARE_TRACE_CONDITION(name, proto, args, cond) |
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| 125 | |
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| 126 | #undef DECLARE_TRACE_EVENT |
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| 127 | #define DECLARE_TRACE_EVENT(name, proto, args) |
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| 128 | #undef DECLARE_TRACE_EVENT_CONDITION |
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| 129 | #define DECLARE_TRACE_EVENT_CONDITION(name, proto, args, cond) |
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| 130 | |
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| 131 | #ifdef TRACEPOINTS_ENABLED |
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| 132 | #include <trace/trace_events.h> |
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| 133 | #include <trace/perf.h> |
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| 134 | #include <trace/bpf_probe.h> |
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| 135 | #endif |
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| 136 | |
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| 137 | #undef TRACE_EVENT |
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| 138 | #undef TRACE_EVENT_FN |
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| 139 | #undef TRACE_EVENT_FN_COND |
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| 140 | #undef TRACE_EVENT_SYSCALL |
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| 141 | #undef TRACE_EVENT_CONDITION |
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| 142 | #undef TRACE_EVENT_NOP |
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| 143 | #undef DEFINE_EVENT_NOP |
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| 144 | #undef DECLARE_EVENT_CLASS |
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| 145 | #undef DEFINE_EVENT |
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| 146 | #undef DEFINE_EVENT_FN |
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| 147 | #undef DEFINE_EVENT_PRINT |
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| 148 | #undef DEFINE_EVENT_CONDITION |
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| 149 | #undef TRACE_HEADER_MULTI_READ |
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| 150 | #undef DECLARE_TRACE |
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| 151 | #undef DECLARE_TRACE_CONDITION |
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| 152 | #undef DECLARE_TRACE_EVENT |
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| 153 | #undef DECLARE_TRACE_EVENT_CONDITION |
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| 154 | |
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| 155 | /* Only undef what we defined in this file */ |
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| 156 | #ifdef UNDEF_TRACE_INCLUDE_FILE |
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| 157 | # undef TRACE_INCLUDE_FILE |
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| 158 | # undef UNDEF_TRACE_INCLUDE_FILE |
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| 159 | #endif |
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| 160 | |
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| 161 | #ifdef UNDEF_TRACE_INCLUDE_PATH |
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| 162 | # undef TRACE_INCLUDE_PATH |
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| 163 | # undef UNDEF_TRACE_INCLUDE_PATH |
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| 164 | #endif |
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| 165 | |
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| 166 | #ifdef CREATE_RUST_TRACE_POINTS |
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| 167 | # undef DEFINE_RUST_DO_TRACE |
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| 168 | # define DEFINE_RUST_DO_TRACE(name, proto, args) |
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| 169 | #endif |
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| 170 | |
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| 171 | /* We may be processing more files */ |
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| 172 | #define CREATE_TRACE_POINTS |
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| 173 | |
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| 174 | #endif /* CREATE_TRACE_POINTS */ |
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| 175 | |
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