Messages in this thread Patch in this message | | | Date | Wed, 26 Aug 2009 00:59:52 -0400 | From | Steven Rostedt <> | Subject | [PATCH 7/8] tracing/events: fix the include file dependencies |
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From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
The TRACE_EVENT depends on the include/linux/tracepoint.h first and include/trace/ftrace.h later, if we include the ftrace.h early, a building error will occur.
Both define TRACE_EVENT in trace_a.h and trace_b.h, if we include those in .c file, like this:
#define CREATE_TRACE_POINTS include <trace/events/trace_a.h> include <trace/events/trace_b.h>
The above will not work, because the TRACE_EVENT was re-defined by the previous .h file.
Reported-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> LKML-Reference: <4A937F5E.3020802@cn.fujitsu.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- include/linux/tracepoint.h | 3 +-- include/trace/define_trace.h | 1 + 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 5984ed0..8170985 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -180,6 +180,7 @@ static inline void tracepoint_synchronize_unregister(void) } #define PARAMS(args...) args +#endif #ifndef TRACE_EVENT /* @@ -287,5 +288,3 @@ static inline void tracepoint_synchronize_unregister(void) #define TRACE_EVENT(name, proto, args, struct, assign, print) \ DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) #endif - -#endif diff --git a/include/trace/define_trace.h b/include/trace/define_trace.h index f7a7ae1..cd150b9 100644 --- a/include/trace/define_trace.h +++ b/include/trace/define_trace.h @@ -56,6 +56,7 @@ #include <trace/ftrace.h> #endif +#undef TRACE_EVENT #undef TRACE_HEADER_MULTI_READ /* Only undef what we defined in this file */ -- 1.6.3.3 --
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