linux-kernel - Re: [PATCH 1/3] make kernel-doc understand TRACE

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Date:	Thu, 30 Apr 2009 10:48:31 -0400
From:	Jason Baron <jbaron@...hat.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	mingo@...e.hu, rostedt@...dmis.org, fweisbec@...il.com,
	mathieu.desnoyers@...ymtl.ca, wcohen@...hat.com
Subject: Re: [PATCH 1/3] make kernel-doc understand TRACE_EVENT() macro

On Wed, Apr 29, 2009 at 12:17:37PM -0700, Randy Dunlap wrote:
> I'd prefer for this warning to use the usual kernel-doc warning format, with
> file:line information:
> 
> 		print STDERR "Warning(${file}:$.): Unrecognized ....
> 
> Otherwise, looks good.  Thanks.
> 
> 

ok, updated patch:


Add support to kernel-doc script for tracepoint comments above 
TRACE_EVENT() macro definitions. Paves the way for tracepoint docbook.


Signed-off-by: Jason Baron <jbaron@...hat.com>

---

 scripts/kernel-doc |   22 ++++++++++++++++++++++
 1 files changed, 22 insertions(+), 0 deletions(-)


diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 0f11870..2b53a55 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1827,6 +1827,25 @@ sub reset_state {
     $state = 0;
 }
 
+sub tracepoint_munge($) {
+	my $file = shift;
+	my $tracepointname = 0;
+	my $tracepointargs = 0;
+
+	if($prototype =~ m/TRACE_EVENT\((.*?),/) {
+		$tracepointname = $1;
+	}
+	if($prototype =~ m/TP_PROTO\((.*?)\)/) {
+		$tracepointargs = $1;
+	}
+	if (($tracepointname eq 0) || ($tracepointargs eq 0)) {
+		print STDERR "Warning(${file}:$.): Unrecognized tracepoint format: \n".
+			     "$prototype\n";
+	} else {
+		$prototype = "static inline void trace_$tracepointname($tracepointargs)";
+	}
+}
+
 sub syscall_munge() {
 	my $void = 0;
 
@@ -1881,6 +1900,9 @@ sub process_state3_function($$) {
 	if ($prototype =~ /SYSCALL_DEFINE/) {
 		syscall_munge();
 	}
+	if ($prototype =~ /TRACE_EVENT/) {
+		tracepoint_munge($file);
+	}
 	dump_function($prototype, $file);
 	reset_state();
     }
--
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