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#!/usr/bin/perl -w
#
# $Id: gcov_resultcompare.pl,v 1.2 2004-03-19 14:46:51 obo Exp $
#
# GCOV_RESULTCOMPARE
#
# Helper, to compare two different results
#
# Q: Why perl?
# A: regexp ;-)
#
use strict;
use File::Basename;
use Getopt::Long;
our $version_info = 'gcov_resultcompare $Revision: 1.2 $ ';
our $help; # Help option flag
our $version; # Version option flag
# our $infile;
our $orig;
our $compare;
# Prototypes
sub print_usage(*);
sub read_gcov_function_file($);
# Parse command line options
if (!GetOptions(
"o=s" => \$orig,
"c=s" => \$compare,
"help" => \$help,
"version" => \$version
))
{
print_usage(*STDERR);
exit(1);
}
# Check for help option
if ($help)
{
print_usage(*STDOUT);
exit(0);
}
# Check for version option
if ($version)
{
print("$version_info\n");
exit(0);
}
# check if enough parameters
# if ($#ARGV < 1)
# {
# print("No input filenames specified\n");
# print_usage(*STDERR);
# exit(1);
# }
if (! $orig)
{
print_usage(*STDOUT);
exit(0);
}
if (! $compare)
{
print_usage(*STDOUT);
exit(0);
}
# ------------------------------------------------------------------------------
my %origlist = read_gcov_function_file($orig);
my %cmplist = read_gcov_function_file($compare);
my $key;
my $value;
while (($key, $value) = each %origlist)
{
my $cmpvalue = $cmplist{$key};
if ($cmpvalue != 0.00)
{
if ($value < 100.00)
{
if ($cmpvalue > $value && $value < 90.0)
{
print "$key, $value, CMP:$cmpvalue\n";
}
}
}
}
# --------------------------------------------------------------------------------
# Read the gcov function (gcov -f) file
# and compare line by line with the export function list
# so we get a list of functions, which are only exported, and not all stuff.
sub read_gcov_function_file($)
{
local *INPUT_HANDLE;
my $file = shift;
my %list;
my $line = "";
open(INPUT_HANDLE, $file)
or die("ERROR: cannot open $file!\n");
while ($line = <INPUT_HANDLE>)
{
chomp($line);
# sample line (for reg exp:)
# 100.00 rtl_ustr_toDouble
if ($line =~ /^(.{6}) (\w+)$/ )
{
my $percent = $1;
my $value = $2;
$list{$value} = $percent;
}
}
close(INPUT_HANDLE);
return %list;
}
# ----------------------------------------------------------------------------
sub print_usage(*)
{
local *HANDLE = $_[0];
my $tool_name = basename($0);
print(HANDLE <<END_OF_USAGE);
Usage: $tool_name [OPTIONS] INPUTFILE
-o Original File, which gives the main values
if here a value is smaller than in compare, the found value is a candidate for better check.
-c Compare file.
-h, --help Print this help, then exit
-v, --version Print version number, then exit
END_OF_USAGE
;
}
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