[PATCH 2/2] Add function tracer formatter

[PATCH 2/2] Add function tracer formatter

[Manuel Naranjo]

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This patch adds the script available at 
http://www.logix.cz/michal/devel/CygProfiler to the tools folder, I 
don't know if it makes sense to install this into somewhere as this is 
only developers only intendeed.

The way to use it is:
perl tools/cyg-resolve.pl src/.libs/bluetoothd bluetoothd-log.<PID>

Signed-off-by: Manuel Naranjo <manuel@aircable.net>

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>From 43691108561e8e39226ccd9064a05690ba48bd66 Mon Sep 17 00:00:00 2001
From: Manuel Francisco Naranjo <manuel@aircable.net>
Date: Mon, 19 Jul 2010 13:18:43 -0300
Subject: [PATCH 2/2] added perl script to resolve symbols on tracing

---
 tools/cyg-resolve.pl |  111 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 111 insertions(+), 0 deletions(-)
 create mode 100644 tools/cyg-resolve.pl

diff --git a/tools/cyg-resolve.pl b/tools/cyg-resolve.pl
new file mode 100644
index 0000000..5d56bd3
--- /dev/null
+++ b/tools/cyg-resolve.pl
@@ -0,0 +1,111 @@
+#!/usr/bin/perl
+
+# 
+# cyg-resolve.pl - CygProfiler resolver
+# 
+# Michal Ludvig <michal@logix.cz>
+# http://www.logix.cz/michal/devel
+# 
+# Use this script to parse the output of the CygProfile suite.
+# 
+
+use strict;
+use warnings;
+no warnings 'portable';
+use diagnostics;
+use English;
+
+my %symtab;
+my ($binfile, $textfile, $levelcorr);
+
+$OUTPUT_AUTOFLUSH=1;
+
+&help() if($#ARGV < 1);
+$binfile=$ARGV[0];
+&help() if($binfile =~ /--help/);
+$textfile=($#ARGV > 0 ? $ARGV[1] : "cygprof.log");
+$levelcorr=($#ARGV > 1 ? $ARGV[2] : -1);
+
+&main();
+
+# ==== Subs
+
+sub help()
+{
+	printf("CygProgile parser, Michal Ludvig <michal\@logix.cz>, 2002-2003\n");
+	printf("Usage: %s <bin-file> <log-file> [<correction>]\n", $0);
+	printf("\t<bin-file>   Program that generated the logfile.\n");
+	printf("\t<log-file>   Logfile generated by the profiled program.\n");
+	printf("\t<correction> Correction of the nesting level.\n");
+	exit;
+}
+
+sub main()
+{
+	my($offset, $type, $function);
+	my($nsym, $nfunc);
+	
+	$nsym=0;
+	$nfunc=0;
+	
+	open(NM, "nm $binfile|") or die("Unable to run 'nm $binfile': $!\n");
+	printf("Loading symbols from $binfile ... ");
+	
+	while(<NM>)
+	{
+		$nsym++;
+		next if(!/^([0-9A-F]+) (.) (.+)$/i);
+		$offset=hex($1); $type=$2; $function=$3;
+		next if($type !~ /[tT]/);
+		$nfunc++;
+		$symtab{$offset}=$function;
+	}
+	printf("OK\nSeen %d symbols, stored %d function offsets\n", $nsym, $nfunc);
+	close(NM);
+
+	open(TEXT, "$textfile")
+		or die("Unable to open '$textfile': $!\n");
+	
+	if ($levelcorr == -1)
+	{
+		$levelcorr = 0;
+		while(<TEXT>)
+		{
+			if ((/^.*[+-] (-*\d+)/) && ($1 < -$levelcorr))
+				{ $levelcorr = -$1; }
+		}
+		printf("Level correction set to %d\n", $levelcorr);
+		seek(TEXT, 0, 0);
+	}
+
+	while(<TEXT>)
+	{
+		# Change the pattern if the output format 
+		# of __cyg_...() functions has changed.
+		if(!/(.*)([+-]) (-*\d+) 0x([[:xdigit:]]+) 0x([[:xdigit:]]+)\s*(\d*)/)
+			{ print $_; next; }
+		else
+		{
+			my $prolog=$1;
+			my $type=$2;
+
+			my $level=$3 + $levelcorr;
+			my $off1=hex($4);
+			my $off2=hex($5);
+			my $pid=$6;
+
+			printf("$prolog\n") if ($prolog);
+
+			# Don't print exits
+			next if($type eq "-");
+			my $sym=(defined($symtab{$off1})?$symtab{$off1}:"???");
+
+			printf("\t%s %2d 0x%x (from 0x%x) %*s%s\n",
+				$type, $level, $off1, $off2,
+				$level+1, " ", "$sym()");
+		}
+	}
+	close(TEXT);
+
+	printf("done\n");
+}
-- 
1.6.4.4