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Date: Wed, 2 Apr 2014 21:19:33 +0200
From: Fabian Frederick <fabf@skynet.be>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: akpm <akpm@linux-foundation.org>, linux-kbuild@vger.kernel.org
Subject: [PATCH 1/1] scripts/bootgraph.pl: Add graphic header
Message-Id: <20140402211933.00d5e51ae27dc46318d2c9f7@skynet.be>
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Adding -header + help function like other .pl in /scripts.

Cc: linux-kbuild@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
 scripts/bootgraph.pl | 42 ++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 40 insertions(+), 2 deletions(-)

diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl
index b78fca9..b8f2cd3 100644
--- a/scripts/bootgraph.pl
+++ b/scripts/bootgraph.pl
@@ -38,6 +38,31 @@
 #
 
 use strict;
+use Getopt::Long;
+my $header = 0;
+
+sub help {
+	my $text = << "EOM";
+Usage:
+1) dmesg | perl scripts/bootgraph.pl [OPTION] > output.svg
+2) perl scripts/bootgraph.pl -h
+
+Options:
+	-header	Insert kernel version and date
+EOM
+	my $std=shift;
+	if ($std == 1){
+		print STDERR $text;
+	} else {
+		print $text;
+	}
+	exit;
+}
+
+GetOptions(
+	'h|help'	=>\&help,
+	'header'	=>\$header
+);
 
 my %start;
 my %end;
@@ -49,6 +74,11 @@ my $count = 0;
 my %pids;
 my %pidctr;
 
+my $headerstep=20;
+my $xheader=15;
+my $yheader=25;
+my $cyheader=0;
+
 while (<>) {
 	my $line = $_;
 	if ($line =~ /([0-9\.]+)\] calling  ([a-zA-Z0-9\_\.]+)\+/) {
@@ -112,15 +142,23 @@ if ($count == 0) {
     print STDERR <<END;
 No data found in the dmesg. Make sure that 'printk.time=1' and
 'initcall_debug' are passed on the kernel command line.
-Usage:
-      dmesg | perl scripts/bootgraph.pl > output.svg
 END
+	help(1);
     exit 1;
 }
 
 print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
 print "<svg width=\"2000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
 
+
+if ($header) {
+	my $version = `uname -a`;
+	my $date = `date`;
+	print "<text transform=\"translate($xheader,$yheader)\">Kernel version: $version</text>\n";
+	$cyheader = $yheader+$headerstep;
+	print "<text transform=\"translate($xheader,$cyheader)\">Date: $date</text>\n";
+}
+
 my @styles;
 
 $styles[0] = "fill:rgb(0,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
-- 
1.8.4.5

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