1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
#!/usr/bin/perl
sub alloc {
my $addr = shift;
my $file = shift;
my $line = shift;
if ( $arena{$addr} ) {
($ofile,$oline) = @{$arena{$addr}};
print( "duplicate allocation $addr at $file $line\n allocated at $ofile $oline\n" );
}
if ( $freed{$addr} ) {
delete $freed{$addr};
}
$arena{$addr} = [$file,$line];
}
sub free {
my $addr = shift;
my $file = shift;
my $line = shift;
if ( $arena{$addr} ) {
$freed{$addr} = [$arena{$addr}->[0], $arena{$addr}->[1], $file, $line];
delete $arena{$addr};
}
else {
if ($freed{$addr}) {
($afile,$aline,$ffile,$fline) = @{$freed{$addr}};
print( "double free $addr at $file $line\n allocated at $afile $aline\n last freed at $ffile $fline\n" );
}
else {
print( "freeing unallocated $addr at $file $line\n" );
}
}
}
sub unfreed {
for $addr (keys %arena) {
($file,$line)=@{$arena{$addr}};
print( "unfreed $addr allocated at $file $line\n" );
}
undef %arena;
undef %freed;
}
open(FILE, "</tmp/gpsbabel.debug");
while (<FILE>) {
chomp;
@args = split(', ',$_);
if ($args[0] eq 'malloc') {
&alloc($args[1], $args[3], $args[4]);
}
if ($args[0] eq 'calloc') {
&alloc($args[1], $args[4], $args[5]);
}
if ($args[0] eq 'strdup') {
&alloc($args[1], $args[3], $args[4]);
}
if ($args[0] eq 'realloc') {
&free($args[2], $args[4], $args[5]);
&alloc($args[1], $args[4], $args[5]);
}
if ($args[0] eq 'free') {
&free($args[1], $args[2], $args[3]);
}
if ($args[0] =~ m/^command/) {
&unfreed;
print "$args[0]\n";
}
}
&unfreed;
close(FILE);
|
