| | 1 | /* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1) |
| | 2 | * |
| | 3 | * define_trace.h |
| | 4 | * |
| | 5 | * Copyright (C) 2009 Steven Rostedt <rostedt@goodmis.org> |
| | 6 | * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| | 7 | */ |
| | 8 | |
| | 9 | /* |
| | 10 | * Trace files that want to automate creationg of all tracepoints defined |
| | 11 | * in their file should include this file. The following are macros that the |
| | 12 | * trace file may define: |
| | 13 | * |
| | 14 | * TRACE_SYSTEM defines the system the tracepoint is for |
| | 15 | * |
| | 16 | * TRACE_INCLUDE_FILE if the file name is something other than TRACE_SYSTEM.h |
| | 17 | * This macro may be defined to tell define_trace.h what file to include. |
| | 18 | * Note, leave off the ".h". |
| | 19 | * |
| | 20 | * TRACE_INCLUDE_PATH if the path is something other than core kernel include/trace |
| | 21 | * then this macro can define the path to use. Note, the path is relative to |
| | 22 | * define_trace.h, not the file including it. Full path names for out of tree |
| | 23 | * modules must be used. |
| | 24 | */ |
| | 25 | |
| | 26 | #ifdef CREATE_TRACE_POINTS |
| | 27 | |
| | 28 | /* Prevent recursion */ |
| | 29 | #undef CREATE_TRACE_POINTS |
| | 30 | |
| | 31 | #include <linux/stringify.h> |
| | 32 | |
| | 33 | #undef LTTNG_TRACEPOINT_EVENT_MAP |
| | 34 | #define LTTNG_TRACEPOINT_EVENT_MAP(name, map, proto, args, fields) |
| | 35 | |
| | 36 | #undef LTTNG_TRACEPOINT_EVENT_MAP_NOARGS |
| | 37 | #define LTTNG_TRACEPOINT_EVENT_MAP_NOARGS(name, map, fields) |
| | 38 | |
| | 39 | #undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP |
| | 40 | #define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(template, name, map, proto, args) |
| | 41 | |
| | 42 | #undef LTTNG_TRACEPOINT_EVENT |
| | 43 | #define LTTNG_TRACEPOINT_EVENT(name, proto, args, fields) |
| | 44 | |
| | 45 | #undef LTTNG_TRACEPOINT_EVENT_CODE |
| | 46 | #define LTTNG_TRACEPOINT_EVENT_CODE(name, proto, args, _locvar, _code_pre, fields, _code_post) |
| | 47 | |
| | 48 | #undef LTTNG_TRACEPOINT_EVENT_CODE_MAP |
| | 49 | #define LTTNG_TRACEPOINT_EVENT_CODE_MAP(name, map, proto, args, _locvar, _code_pre, fields, _code_post) |
| | 50 | |
| | 51 | #undef LTTNG_TRACEPOINT_EVENT_INSTANCE |
| | 52 | #define LTTNG_TRACEPOINT_EVENT_INSTANCE(template, name, proto, args) |
| | 53 | |
| | 54 | #undef LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS |
| | 55 | #define LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(template, name) |
| | 56 | |
| | 57 | #undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS |
| | 58 | #define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS(template, name, map) |
| | 59 | |
| | 60 | #undef TRACE_INCLUDE |
| | 61 | #undef __TRACE_INCLUDE |
| | 62 | |
| | 63 | #ifndef TRACE_INCLUDE_FILE |
| | 64 | # define TRACE_INCLUDE_FILE TRACE_SYSTEM |
| | 65 | # define UNDEF_TRACE_INCLUDE_FILE |
| | 66 | #endif |
| | 67 | |
| | 68 | #ifndef TRACE_INCLUDE_PATH |
| | 69 | # define __TRACE_INCLUDE(system) <trace/events/system.h> |
| | 70 | # define UNDEF_TRACE_INCLUDE_PATH |
| | 71 | #else |
| | 72 | # define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h) |
| | 73 | #endif |
| | 74 | |
| | 75 | # define TRACE_INCLUDE(system) __TRACE_INCLUDE(system) |
| | 76 | |
| | 77 | /* Let the trace headers be reread */ |
| | 78 | #define TRACE_HEADER_MULTI_READ |
| | 79 | |
| | 80 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
| | 81 | |
| | 82 | /* Make all open coded DECLARE_TRACE nops */ |
| | 83 | #undef DECLARE_TRACE |
| | 84 | #define DECLARE_TRACE(name, proto, args) |
| | 85 | |
| | 86 | #ifdef LTTNG_PACKAGE_BUILD |
| | 87 | #include <probes/lttng-tracepoint-event-impl.h> |
| | 88 | #endif |
| | 89 | |
| | 90 | #undef LTTNG_TRACEPOINT_EVENT |
| | 91 | #undef LTTNG_TRACEPOINT_EVENT_INSTANCE |
| | 92 | #undef LTTNG_TRACEPOINT_EVENT_MAP |
| | 93 | #undef LTTNG_TRACEPOINT_EVENT_CLASS |
| | 94 | #undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP |
| | 95 | #undef LTTNG_TRACEPOINT_EVENT_CODE_MAP |
| | 96 | #undef LTTNG_TRACEPOINT_EVENT_CODE |
| | 97 | #undef LTTNG_TRACEPOINT_EVENT_MAP_NOARGS |
| | 98 | #undef LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS |
| | 99 | #undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS |
| | 100 | #undef TRACE_HEADER_MULTI_READ |
| | 101 | |
| | 102 | /* Only undef what we defined in this file */ |
| | 103 | #ifdef UNDEF_TRACE_INCLUDE_FILE |
| | 104 | # undef TRACE_INCLUDE_FILE |
| | 105 | # undef UNDEF_TRACE_INCLUDE_FILE |
| | 106 | #endif |
| | 107 | |
| | 108 | #ifdef UNDEF_TRACE_INCLUDE_PATH |
| | 109 | # undef TRACE_INCLUDE_PATH |
| | 110 | # undef UNDEF_TRACE_INCLUDE_PATH |
| | 111 | #endif |
| | 112 | |
| | 113 | /* |
| | 114 | * We want to re-include lttng-tracepoint-event.h for a following probe. |
| | 115 | */ |
| | 116 | #undef LTTNG_TRACEPOINT_EVENT_H |
| | 117 | |
| | 118 | /* We may be processing more files */ |
| | 119 | #define CREATE_TRACE_POINTS |
| | 120 | |
| | 121 | #endif /* CREATE_TRACE_POINTS */ |
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