linux-kernel - Re: tracing: Multi definition of TRACE_INCLUDE

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Message-ID: <20100114024147.GB15301@goodmis.org>
Date:	Wed, 13 Jan 2010 21:41:47 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Wenji Huang <wenji.huang@...cle.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: tracing: Multi definition of TRACE_INCLUDE_FILE

On Wed, Jan 06, 2010 at 03:40:40PM +0800, Wenji Huang wrote:
> Hi,
> 
> There are multi definition of TRACE_INCLUDE_FILE on
> include/trace/events/{syscalls, kvm}.h
> It will result in compilation error when some
> out-of-tree tools like Systemtap processes kernel
> tracepoints in a way to put header files into module.
> 

Does the following patch fix your issues?

-- Steve


diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index dbe1084..532d658 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -4,6 +4,7 @@
 #include <linux/tracepoint.h>
 
 #undef TRACE_SYSTEM
+#undef TRACE_INCLUDE_FILE
 #define TRACE_SYSTEM kvm
 #define TRACE_INCLUDE_FILE kvm
 
diff --git a/include/trace/events/syscalls.h b/include/trace/events/syscalls.h
index fb726ac..52290bb 100644
--- a/include/trace/events/syscalls.h
+++ b/include/trace/events/syscalls.h
@@ -1,4 +1,5 @@
 #undef TRACE_SYSTEM
+#undef TRACE_INCLUDE_FILE
 #define TRACE_SYSTEM raw_syscalls
 #define TRACE_INCLUDE_FILE syscalls
 
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