1/* 2 * Trace files that want to automate creationg of all tracepoints defined 3 * in their file should include this file. The following are macros that the 4 * trace file may define: 5 * 6 * TRACE_SYSTEM defines the system the tracepoint is for 7 * 8 * TRACE_INCLUDE_FILE if the file name is something other than TRACE_SYSTEM.h 9 * This macro may be defined to tell define_trace.h what file to include. 10 * Note, leave off the ".h". 11 * 12 * TRACE_INCLUDE_PATH if the path is something other than core kernel include/trace 13 * then this macro can define the path to use. Note, the path is relative to 14 * define_trace.h, not the file including it. Full path names for out of tree 15 * modules must be used. 16 */ 17 18#ifdef CREATE_TRACE_POINTS 19 20/* Prevent recursion */ 21#undef CREATE_TRACE_POINTS 22 23#include <linux/stringify.h> 24 25#undef TRACE_EVENT 26#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \ 27 DEFINE_TRACE(name) 28 29#undef TRACE_EVENT_FN 30#define TRACE_EVENT_FN(name, proto, args, tstruct, \ 31 assign, print, reg, unreg) \ 32 DEFINE_TRACE_FN(name, reg, unreg) 33 34#undef DEFINE_EVENT 35#define DEFINE_EVENT(template, name, proto, args) \ 36 DEFINE_TRACE(name) 37 38#undef DEFINE_EVENT_PRINT 39#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ 40 DEFINE_TRACE(name) 41 42#undef DECLARE_TRACE 43#define DECLARE_TRACE(name, proto, args) \ 44 DEFINE_TRACE(name) 45 46#undef TRACE_INCLUDE 47#undef __TRACE_INCLUDE 48 49#ifndef TRACE_INCLUDE_FILE 50# define TRACE_INCLUDE_FILE TRACE_SYSTEM 51# define UNDEF_TRACE_INCLUDE_FILE 52#endif 53 54#ifndef TRACE_INCLUDE_PATH 55# define __TRACE_INCLUDE(system) <trace/events/system.h> 56# define UNDEF_TRACE_INCLUDE_PATH 57#else 58# define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h) 59#endif 60 61# define TRACE_INCLUDE(system) __TRACE_INCLUDE(system) 62 63/* Let the trace headers be reread */ 64#define TRACE_HEADER_MULTI_READ 65 66#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 67 68/* Make all open coded DECLARE_TRACE nops */ 69#undef DECLARE_TRACE 70#define DECLARE_TRACE(name, proto, args) 71 72#ifdef CONFIG_EVENT_TRACING 73#include <trace/ftrace.h> 74#endif 75 76#undef TRACE_EVENT 77#undef TRACE_EVENT_FN 78#undef DECLARE_EVENT_CLASS 79#undef DEFINE_EVENT 80#undef DEFINE_EVENT_PRINT 81#undef TRACE_HEADER_MULTI_READ 82#undef DECLARE_TRACE 83 84/* Only undef what we defined in this file */ 85#ifdef UNDEF_TRACE_INCLUDE_FILE 86# undef TRACE_INCLUDE_FILE 87# undef UNDEF_TRACE_INCLUDE_FILE 88#endif 89 90#ifdef UNDEF_TRACE_INCLUDE_PATH 91# undef TRACE_INCLUDE_PATH 92# undef UNDEF_TRACE_INCLUDE_PATH 93#endif 94 95/* We may be processing more files */ 96#define CREATE_TRACE_POINTS 97 98#endif /* CREATE_TRACE_POINTS */ 99