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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Trace files that want to automate creation of all tracepoints defined4 * in their file should include this file. The following are macros that the5 * trace file may define:6 *7 * TRACE_SYSTEM defines the system the tracepoint is for8 *9 * TRACE_INCLUDE_FILE if the file name is something other than TRACE_SYSTEM.h10 * 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/trace14 * then this macro can define the path to use. Note, the path is relative to15 * define_trace.h, not the file including it. Full path names for out of tree16 * modules must be used.17 */18 19#ifdef CREATE_TRACE_POINTS20 21/* Prevent recursion */22#undef CREATE_TRACE_POINTS23 24#include <linux/stringify.h>25 26#undef TRACE_EVENT27#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \28 DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))29 30#undef TRACE_EVENT_CONDITION31#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_FN40#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_COND45#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_NOP50#define TRACE_EVENT_NOP(name, proto, args, struct, assign, print)51 52#undef DEFINE_EVENT_NOP53#define DEFINE_EVENT_NOP(template, name, proto, args)54 55#undef DEFINE_EVENT56#define DEFINE_EVENT(template, name, proto, args) \57 DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))58 59#undef DEFINE_EVENT_FN60#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_PRINT64#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \65 DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))66 67#undef DEFINE_EVENT_CONDITION68#define DEFINE_EVENT_CONDITION(template, name, proto, args, cond) \69 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))70 71#undef DECLARE_TRACE72#define DECLARE_TRACE(name, proto, args) \73 DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))74 75#undef TRACE_INCLUDE76#undef __TRACE_INCLUDE77 78#ifndef TRACE_INCLUDE_FILE79# define TRACE_INCLUDE_FILE TRACE_SYSTEM80# define UNDEF_TRACE_INCLUDE_FILE81#endif82 83#ifndef TRACE_INCLUDE_PATH84# define __TRACE_INCLUDE(system) <trace/events/system.h>85# define UNDEF_TRACE_INCLUDE_PATH86#else87# define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h)88#endif89 90# define TRACE_INCLUDE(system) __TRACE_INCLUDE(system)91 92/* Let the trace headers be reread */93#define TRACE_HEADER_MULTI_READ94 95#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)96 97/* Make all open coded DECLARE_TRACE nops */98#undef DECLARE_TRACE99#define DECLARE_TRACE(name, proto, args)100 101#ifdef TRACEPOINTS_ENABLED102#include <trace/trace_events.h>103#include <trace/perf.h>104#include <trace/bpf_probe.h>105#endif106 107#undef TRACE_EVENT108#undef TRACE_EVENT_FN109#undef TRACE_EVENT_FN_COND110#undef TRACE_EVENT_CONDITION111#undef TRACE_EVENT_NOP112#undef DEFINE_EVENT_NOP113#undef DECLARE_EVENT_CLASS114#undef DEFINE_EVENT115#undef DEFINE_EVENT_FN116#undef DEFINE_EVENT_PRINT117#undef DEFINE_EVENT_CONDITION118#undef TRACE_HEADER_MULTI_READ119#undef DECLARE_TRACE120 121/* Only undef what we defined in this file */122#ifdef UNDEF_TRACE_INCLUDE_FILE123# undef TRACE_INCLUDE_FILE124# undef UNDEF_TRACE_INCLUDE_FILE125#endif126 127#ifdef UNDEF_TRACE_INCLUDE_PATH128# undef TRACE_INCLUDE_PATH129# undef UNDEF_TRACE_INCLUDE_PATH130#endif131 132/* We may be processing more files */133#define CREATE_TRACE_POINTS134 135#endif /* CREATE_TRACE_POINTS */136