linux-kernel - [tip:tracing/core] kerneldoc, tracing: make kernel-doc understand TRACE

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Message-ID: <tip-56afb0f8823650f53a5f0e96d69a282e8892c61b@git.kernel.org>
Date:	Fri, 1 May 2009 13:28:20 GMT
From:	tip-bot for Jason Baron <jbaron@...hat.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	jbaron@...hat.com, tglx@...utronix.de, randy.dunlap@...cle.com,
	mingo@...e.hu
Subject: [tip:tracing/core] kerneldoc, tracing: make kernel-doc understand TRACE_EVENT() macro (take #2)

Commit-ID:  56afb0f8823650f53a5f0e96d69a282e8892c61b
Gitweb:     http://git.kernel.org/tip/56afb0f8823650f53a5f0e96d69a282e8892c61b
Author:     Jason Baron <jbaron@...hat.com>
AuthorDate: Thu, 30 Apr 2009 13:29:36 -0400
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Fri, 1 May 2009 14:03:35 +0200

kerneldoc, tracing: make kernel-doc understand TRACE_EVENT() macro (take #2)

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

[ Impact: extend DocBook infrastructure ]

Signed-off-by: Jason Baron <jbaron@...hat.com>
Acked-by: Randy Dunlap <randy.dunlap@...cle.com>
Cc: akpm@...ux-foundation.org
Cc: rostedt@...dmis.org
Cc: fweisbec@...il.com
Cc: mathieu.desnoyers@...ymtl.ca
Cc: wcohen@...hat.com
LKML-Reference: <d80706b6797e277924d2f3ec9af176c6b2951f88.1241107197.git.jbaron@...hat.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 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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