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_SYSCALL 50 #define TRACE_EVENT_SYSCALL(name, proto, args, struct, assign, print, reg, unreg) \ 51 DEFINE_TRACE_FN(name, reg, unreg, PARAMS(proto), PARAMS(args)) 52 53 #undef TRACE_EVENT_NOP 54 #define TRACE_EVENT_NOP(name, proto, args, struct, assign, print) 55 56 #undef DEFINE_EVENT_NOP 57 #define DEFINE_EVENT_NOP(template, name, proto, args) 58 59 #undef DEFINE_EVENT 60 #define DEFINE_EVENT(template, name, proto, args) \ 61 DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) 62 63 #undef DEFINE_EVENT_FN 64 #define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg) \ 65 DEFINE_TRACE_FN(name, reg, unreg, PARAMS(proto), PARAMS(args)) 66 67 #undef DEFINE_EVENT_PRINT 68 #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ 69 DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) 70 71 #undef DEFINE_EVENT_CONDITION 72 #define DEFINE_EVENT_CONDITION(template, name, proto, args, cond) \ 73 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) 74 75 #undef DECLARE_TRACE 76 #define DECLARE_TRACE(name, proto, args) \ 77 DEFINE_TRACE(name, PARAMS(proto), PARAMS(args)) 78 79 #undef TRACE_INCLUDE 80 #undef __TRACE_INCLUDE 81 82 #ifndef TRACE_INCLUDE_FILE 83 # define TRACE_INCLUDE_FILE TRACE_SYSTEM 84 # define UNDEF_TRACE_INCLUDE_FILE 85 #endif 86 87 #ifndef TRACE_INCLUDE_PATH 88 # define __TRACE_INCLUDE(system) <trace/events/system.h> 89 # define UNDEF_TRACE_INCLUDE_PATH 90 #else 91 # define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h) 92 #endif 93 94 # define TRACE_INCLUDE(system) __TRACE_INCLUDE(system) 95 96 /* Let the trace headers be reread */ 97 #define TRACE_HEADER_MULTI_READ 98 99 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 100 101 /* Make all open coded DECLARE_TRACE nops */ 102 #undef DECLARE_TRACE 103 #define DECLARE_TRACE(name, proto, args) 104 105 #ifdef TRACEPOINTS_ENABLED 106 #include <trace/trace_events.h> 107 #include <trace/perf.h> 108 #include <trace/bpf_probe.h> 109 #endif 110 111 #undef TRACE_EVENT 112 #undef TRACE_EVENT_FN 113 #undef TRACE_EVENT_FN_COND 114 #undef TRACE_EVENT_SYSCALL 115 #undef TRACE_EVENT_CONDITION 116 #undef TRACE_EVENT_NOP 117 #undef DEFINE_EVENT_NOP 118 #undef DECLARE_EVENT_CLASS 119 #undef DEFINE_EVENT 120 #undef DEFINE_EVENT_FN 121 #undef DEFINE_EVENT_PRINT 122 #undef DEFINE_EVENT_CONDITION 123 #undef TRACE_HEADER_MULTI_READ 124 #undef DECLARE_TRACE 125 126 /* Only undef what we defined in this file */ 127 #ifdef UNDEF_TRACE_INCLUDE_FILE 128 # undef TRACE_INCLUDE_FILE 129 # undef UNDEF_TRACE_INCLUDE_FILE 130 #endif 131 132 #ifdef UNDEF_TRACE_INCLUDE_PATH 133 # undef TRACE_INCLUDE_PATH 134 # undef UNDEF_TRACE_INCLUDE_PATH 135 #endif 136 137 /* We may be processing more files */ 138 #define CREATE_TRACE_POINTS 139 140 #endif /* CREATE_TRACE_POINTS */ 141