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- #! /usr/bin/perl
- eval "exec /usr/bin/perl -S $0 $@"
- if 0;
- # Copyright (C) 1997-2008, 2009 Free Software Foundation, Inc.
- # This file is part of the GNU C Library.
- # Contributed by Ulrich Drepper <drepper@gnu.org>, 1997.
- # Based on the mtrace.awk script.
-
- # The GNU C Library is free software; you can redistribute it and/or
- # modify it under the terms of the GNU Lesser General Public
- # License as published by the Free Software Foundation; either
- # version 2.1 of the License, or (at your option) any later version.
-
- # The GNU C Library is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- # Lesser General Public License for more details.
-
- # You should have received a copy of the GNU Lesser General Public
- # License along with the GNU C Library; if not, write to the Free
- # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- # 02111-1307 USA.
-
- $VERSION = "2.10.1";
- $PKGVERSION = "(EGLIBC) ";
- $REPORT_BUGS_TO = '<http://www.eglibc.org/issues/>';
- $progname = $0;
-
- sub usage {
- print "Usage: mtrace [OPTION]... [Binary] MtraceData\n";
- print " --help print this help, then exit\n";
- print " --version print version number, then exit\n";
- print "\n";
- print "For bug reporting instructions, please see:\n";
- print "$REPORT_BUGS_TO.\n";
- exit 0;
- }
-
- # We expect two arguments:
- # #1: the complete path to the binary
- # #2: the mtrace data filename
- # The usual options are also recognized.
-
- arglist: while (@ARGV) {
- if ($ARGV[0] eq "--v" || $ARGV[0] eq "--ve" || $ARGV[0] eq "--ver" ||
- $ARGV[0] eq "--vers" || $ARGV[0] eq "--versi" ||
- $ARGV[0] eq "--versio" || $ARGV[0] eq "--version") {
- print "mtrace $PKGVERSION$VERSION\n";
- print "Copyright (C) 2009 Free Software Foundation, Inc.\n";
- print "This is free software; see the source for copying conditions. There is NO\n";
- print "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n";
- print "Written by Ulrich Drepper <drepper\@gnu.org>\n";
-
- exit 0;
- } elsif ($ARGV[0] eq "--h" || $ARGV[0] eq "--he" || $ARGV[0] eq "--hel" ||
- $ARGV[0] eq "--help") {
- &usage;
- } elsif ($ARGV[0] =~ /^-/) {
- print "$progname: unrecognized option `$ARGV[0]'\n";
- print "Try `$progname --help' for more information.\n";
- exit 1;
- } else {
- last arglist;
- }
- }
-
- if ($#ARGV == 0) {
- $binary="";
- $data=$ARGV[0];
- } elsif ($#ARGV == 1) {
- $binary=$ARGV[0];
- $data=$ARGV[1];
-
- if ($binary =~ /^.*[\/].*$/) {
- $prog = $binary;
- } else {
- $prog = "./$binary";
- }
- if (open (LOCS, "env LD_TRACE_LOADED_OBJECTS=1 $prog |")) {
- while (<LOCS>) {
- chop;
- if (/^.*=> (.*) .(0x[0123456789abcdef]*).$/) {
- $locs{$1} = $2;
- }
- }
- close (LOCS);
- }
- } else {
- die "Wrong number of arguments, run $progname --help for help.";
- }
-
- sub location {
- my $str = pop(@_);
- return $str if ($str eq "");
- if ($str =~ /.*[[](0x[^]]*)]:(.)*/) {
- my $addr = $1;
- my $fct = $2;
- return $cache{$addr} if (exists $cache{$addr});
- if ($binary ne "" && open (ADDR, "addr2line -e $binary $addr|")) {
- my $line = <ADDR>;
- chomp $line;
- close (ADDR);
- if ($line ne '??:0') {
- $cache{$addr} = $line;
- return $cache{$addr};
- }
- }
- $cache{$addr} = $str = "$fct @ $addr";
- } elsif ($str =~ /^(.*):.*[[](0x[^]]*)]$/) {
- my $prog = $1;
- my $addr = $2;
- my $searchaddr;
- return $cache{$addr} if (exists $cache{$addr});
- if ($locs{$prog} ne "") {
- $searchaddr = sprintf "%#x", $addr - $locs{$prog};
- } else {
- $searchaddr = $addr;
- $prog = $binary;
- }
- if ($binary ne "" && open (ADDR, "addr2line -e $prog $searchaddr|")) {
- my $line = <ADDR>;
- chomp $line;
- close (ADDR);
- if ($line ne '??:0') {
- $cache{$addr} = $line;
- return $cache{$addr};
- }
- }
- $cache{$addr} = $str = $addr;
- } elsif ($str =~ /^.*[[](0x[^]]*)]$/) {
- my $addr = $1;
- return $cache{$addr} if (exists $cache{$addr});
- if ($binary ne "" && open (ADDR, "addr2line -e $binary $addr|")) {
- my $line = <ADDR>;
- chomp $line;
- close (ADDR);
- if ($line ne '??:0') {
- $cache{$addr} = $line;
- return $cache{$addr};
- }
- }
- $cache{$addr} = $str = $addr;
- }
- return $str;
- }
-
- $nr=0;
- open(DATA, "<$data") || die "Cannot open mtrace data file";
- while (<DATA>) {
- my @cols = split (' ');
- my $n, $where;
- if ($cols[0] eq "@") {
- # We have address and/or function name.
- $where=$cols[1];
- $n=2;
- } else {
- $where="";
- $n=0;
- }
-
- $allocaddr=$cols[$n + 1];
- $howmuch=hex($cols[$n + 2]);
-
- ++$nr;
- SWITCH: {
- if ($cols[$n] eq "+") {
- if (defined $allocated{$allocaddr}) {
- printf ("+ %#010x Alloc %d duplicate: %s %s\n",
- hex($allocaddr), $nr, &location($addrwas{$allocaddr}),
- $where);
- } else {
- $allocated{$allocaddr}=$howmuch;
- $addrwas{$allocaddr}=$where;
- }
- last SWITCH;
- }
- if ($cols[$n] eq "-") {
- if (defined $allocated{$allocaddr}) {
- undef $allocated{$allocaddr};
- undef $addrwas{$allocaddr};
- } else {
- printf ("- %#010x Free %d was never alloc'd %s\n",
- hex($allocaddr), $nr, &location($where));
- }
- last SWITCH;
- }
- if ($cols[$n] eq "<") {
- if (defined $allocated{$allocaddr}) {
- undef $allocated{$allocaddr};
- undef $addrwas{$allocaddr};
- } else {
- printf ("- %#010x Realloc %d was never alloc'd %s\n",
- hex($allocaddr), $nr, &location($where));
- }
- last SWITCH;
- }
- if ($cols[$n] eq ">") {
- if (defined $allocated{$allocaddr}) {
- printf ("+ %#010x Realloc %d duplicate: %#010x %s %s\n",
- hex($allocaddr), $nr, $allocated{$allocaddr},
- &location($addrwas{$allocaddr}), &location($where));
- } else {
- $allocated{$allocaddr}=$howmuch;
- $addrwas{$allocaddr}=$where;
- }
- last SWITCH;
- }
- if ($cols[$n] eq "=") {
- # Ignore "= Start".
- last SWITCH;
- }
- if ($cols[$n] eq "!") {
- # Ignore failed realloc for now.
- last SWITCH;
- }
- }
- }
- close (DATA);
-
- # Now print all remaining entries.
- @addrs= keys %allocated;
- $anything=0;
- if ($#addrs >= 0) {
- foreach $addr (sort @addrs) {
- if (defined $allocated{$addr}) {
- if ($anything == 0) {
- print "\nMemory not freed:\n-----------------\n";
- print ' ' x (10 - 7), "Address Size Caller\n";
- $anything=1;
- }
- printf ("%#010x %#8x at %s\n", hex($addr), $allocated{$addr},
- &location($addrwas{$addr}));
- }
- }
- }
- print "No memory leaks.\n" if ($anything == 0);
-
- exit $anything != 0;
-