diff options
Diffstat (limited to 'memanalyze.pl')
-rwxr-xr-x | memanalyze.pl | 55 |
1 files changed, 49 insertions, 6 deletions
diff --git a/memanalyze.pl b/memanalyze.pl index faca19c04..a9dce2044 100755 --- a/memanalyze.pl +++ b/memanalyze.pl @@ -12,12 +12,21 @@ do { } } while (shift @ARGV); +my $maxmem; + +sub newtotal { + my ($newtot)=@_; + # count a max here + + if($newtot > $maxmem) { + $maxmem= $newtot; + } +} + while(<STDIN>) { chomp $_; $line = $_; - if($verbose) { - print "IN: $line\n"; - } + if($line =~ /^MEM ([^:]*):(\d*) (.*)/) { # generic match for the filename+linenumber $source = $1; @@ -34,17 +43,39 @@ while(<STDIN>) { print "FREE ERROR: Previously freed at: ".$getmem{$addr}."\n"; } else { + if(0 && $verbose) { + print "malloc at ".$getmem{$addr}." is freed again at $source:$linenum\n"; + } + $totalmem -= $sizeataddr{$addr}; + + newtotal($totalmem); + $frees++; + $sizeataddr{$addr}=-1; # set -1 to mark as freed $getmem{$addr}="$source:$linenum"; + } } elsif($function =~ /malloc\((\d*)\) = 0x([0-9a-f]*)/) { $size = $1; $addr = $2; + + if($sizeataddr{$addr}>0) { + # this means weeeeeirdo + print "Fucked up debug compile, rebuild curl now\n"; + } + $sizeataddr{$addr}=$size; $totalmem += $size; + if(0 && $verbose) { + print "malloc($size) at $source:$linenum\n"; + } + + newtotal($totalmem); + $mallocs++; + $getmem{$addr}="$source:$linenum"; } elsif($function =~ /realloc\(0x([0-9a-f]*), (\d*)\) = 0x([0-9a-f]*)/) { @@ -58,6 +89,9 @@ while(<STDIN>) { $totalmem += $newsize; $sizeataddr{$newaddr}=$newsize; + newtotal($totalmem); + $reallocs++; + $getmem{$oldaddr}=""; $getmem{$newaddr}="$source:$linenum"; } @@ -71,6 +105,9 @@ while(<STDIN>) { $sizeataddr{$addr}=$size; $totalmem += $size; + + newtotal($totalmem); + $strdups++; } else { print "Not recognized input line: $function\n"; @@ -134,9 +171,6 @@ while(<STDIN>) { else { print "Not recognized prefix line: $line\n"; } - if($verbose) { - print "TOTAL: $totalmem\n"; - } } if($totalmem) { @@ -168,3 +202,12 @@ if($fopens) { } } } + +if($verbose) { + print "Mallocs: $mallocs\n", + "Reallocs: $reallocs\n", + "Strdups: $strdups\n", + "Frees: $frees\n"; + + print "Maximum allocated: $maxmem\n"; +} |