Add leak tools from Parker.

diff --git a/gpsbabel/tools/cleardebug b/gpsbabel/tools/cleardebug
new file mode 100755 (executable)
index 0000000..1ee27e1
--- /dev/null
+++ b/gpsbabel/tools/cleardebug
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+rm /tmp/gpsbabel.debug
+touch /tmp/gpsbabel.debug
+

diff --git a/gpsbabel/tools/memdebug b/gpsbabel/tools/memdebug
new file mode 100755 (executable)
index 0000000..3a50da2
--- /dev/null
+++ b/gpsbabel/tools/memdebug
@@ -0,0 +1,71 @@
+#!/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" );
+    }
+    $arena{$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);