/* SPDX-License-Identifier: GPL-2.0 */ /* * Trace files that want to automate creation of all tracepoints defined * in their file should include this file. The following are macros that the * trace file may define: * * TRACE_SYSTEM defines the system the tracepoint is for * * TRACE_INCLUDE_FILE if the file name is something other than TRACE_SYSTEM.h * This macro may be defined to tell define_trace.h what file to include. * Note, leave off the ".h". * * TRACE_INCLUDE_PATH if the path is something other than core kernel include/trace * then this macro can define the path to use. Note, the path is relative to * define_trace.h, not the file including it. Full path names for out of tree * modules must be used. */ #ifdef CREATE_TRACE_POINTS /* Prevent recursion */ #undef CREATE_TRACE_POINTS #include <linux/stringify.h> #undef TRACE_EVENT #define TRACE_EVENT … #undef TRACE_EVENT_CONDITION #define TRACE_EVENT_CONDITION … #undef TRACE_EVENT_FN #define TRACE_EVENT_FN … #undef TRACE_EVENT_FN_COND #define TRACE_EVENT_FN_COND … #undef TRACE_EVENT_NOP #define TRACE_EVENT_NOP … #undef DEFINE_EVENT_NOP #define DEFINE_EVENT_NOP … #undef DEFINE_EVENT #define DEFINE_EVENT … #undef DEFINE_EVENT_FN #define DEFINE_EVENT_FN … #undef DEFINE_EVENT_PRINT #define DEFINE_EVENT_PRINT … #undef DEFINE_EVENT_CONDITION #define DEFINE_EVENT_CONDITION … #undef DECLARE_TRACE #define DECLARE_TRACE … #undef TRACE_INCLUDE #undef __TRACE_INCLUDE #ifndef TRACE_INCLUDE_FILE #define TRACE_INCLUDE_FILE … #define UNDEF_TRACE_INCLUDE_FILE #endif #ifndef TRACE_INCLUDE_PATH #define __TRACE_INCLUDE … #define UNDEF_TRACE_INCLUDE_PATH #else #define __TRACE_INCLUDE … #endif #define TRACE_INCLUDE … /* Let the trace headers be reread */ #define TRACE_HEADER_MULTI_READ #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) /* Make all open coded DECLARE_TRACE nops */ #undef DECLARE_TRACE #define DECLARE_TRACE … #ifdef TRACEPOINTS_ENABLED #include <trace/trace_events.h> #include <trace/perf.h> #include <trace/bpf_probe.h> #endif #undef TRACE_EVENT #undef TRACE_EVENT_FN #undef TRACE_EVENT_FN_COND #undef TRACE_EVENT_CONDITION #undef TRACE_EVENT_NOP #undef DEFINE_EVENT_NOP #undef DECLARE_EVENT_CLASS #undef DEFINE_EVENT #undef DEFINE_EVENT_FN #undef DEFINE_EVENT_PRINT #undef DEFINE_EVENT_CONDITION #undef TRACE_HEADER_MULTI_READ #undef DECLARE_TRACE /* Only undef what we defined in this file */ #ifdef UNDEF_TRACE_INCLUDE_FILE # undef TRACE_INCLUDE_FILE # undef UNDEF_TRACE_INCLUDE_FILE #endif #ifdef UNDEF_TRACE_INCLUDE_PATH # undef TRACE_INCLUDE_PATH # undef UNDEF_TRACE_INCLUDE_PATH #endif /* We may be processing more files */ #define CREATE_TRACE_POINTS #endif /* CREATE_TRACE_POINTS */
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