mirror of git://sourceware.org/git/glibc.git
238 lines
6.3 KiB
Perl
238 lines
6.3 KiB
Perl
#! @PERL@
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eval "exec @PERL@ -S $0 $*"
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if 0;
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# Copyright (C) 1997-2002, 2003, 2004 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# Contributed by Ulrich Drepper <drepper@gnu.org>, 1997.
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# Based on the mtrace.awk script.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, write to the Free
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# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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# 02111-1307 USA.
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$VERSION = "@VERSION@";
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$PACKAGE = "libc";
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$progname = $0;
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sub usage {
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print "Usage: mtrace [OPTION]... [Binary] MtraceData\n";
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print " --help print this help, then exit\n";
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print " --version print version number, then exit\n";
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print "\n";
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print "For bug reporting instructions, please see:\n";
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print "<http://www.gnu.org/software/libc/bugs.html>.\n";
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exit 0;
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}
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# We expect two arguments:
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# #1: the complete path to the binary
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# #2: the mtrace data filename
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# The usual options are also recognized.
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arglist: while (@ARGV) {
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if ($ARGV[0] eq "--v" || $ARGV[0] eq "--ve" || $ARGV[0] eq "--ver" ||
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$ARGV[0] eq "--vers" || $ARGV[0] eq "--versi" ||
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$ARGV[0] eq "--versio" || $ARGV[0] eq "--version") {
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print "mtrace (GNU $PACKAGE) $VERSION\n";
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print "Copyright (C) 2005 Free Software Foundation, Inc.\n";
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print "This is free software; see the source for copying conditions. There is NO\n";
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print "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n";
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print "Written by Ulrich Drepper <drepper\@gnu.org>\n";
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exit 0;
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} elsif ($ARGV[0] eq "--h" || $ARGV[0] eq "--he" || $ARGV[0] eq "--hel" ||
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$ARGV[0] eq "--help") {
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&usage;
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} elsif ($ARGV[0] =~ /^-/) {
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print "$progname: unrecognized option `$ARGV[0]'\n";
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print "Try `$progname --help' for more information.\n";
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exit 1;
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} else {
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last arglist;
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}
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}
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if ($#ARGV == 0) {
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$binary="";
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$data=$ARGV[0];
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} elsif ($#ARGV == 1) {
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$binary=$ARGV[0];
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$data=$ARGV[1];
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if ($binary =~ /^.*[\/].*$/) {
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$prog = $binary;
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} else {
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$prog = "./$binary";
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}
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if (open (LOCS, "env LD_TRACE_LOADED_OBJECTS=1 $prog |")) {
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while (<LOCS>) {
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chop;
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if (/^.*=> (.*) .(0x[0123456789abcdef]*).$/) {
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$locs{$1} = $2;
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}
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}
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close (LOCS);
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}
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} else {
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die "Wrong number of arguments, run $progname --help for help.";
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}
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sub location {
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my $str = pop(@_);
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return $str if ($str eq "");
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if ($str =~ /.*[[](0x[^]]*)]:(.)*/) {
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my $addr = $1;
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my $fct = $2;
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return $cache{$addr} if (exists $cache{$addr});
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if ($binary ne "" && open (ADDR, "addr2line -e $binary $addr|")) {
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my $line = <ADDR>;
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chomp $line;
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close (ADDR);
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if ($line ne '??:0') {
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$cache{$addr} = $line;
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return $cache{$addr};
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}
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}
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$cache{$addr} = $str = "$fct @ $addr";
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} elsif ($str =~ /^(.*):.*[[](0x[^]]*)]$/) {
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my $prog = $1;
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my $addr = $2;
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my $searchaddr;
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return $cache{$addr} if (exists $cache{$addr});
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if ($locs{$prog} ne "") {
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$searchaddr = sprintf "%#x", $addr - $locs{$prog};
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} else {
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$searchaddr = $addr;
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$prog = $binary;
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}
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if ($binary ne "" && open (ADDR, "addr2line -e $prog $searchaddr|")) {
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my $line = <ADDR>;
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chomp $line;
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close (ADDR);
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if ($line ne '??:0') {
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$cache{$addr} = $line;
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return $cache{$addr};
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}
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}
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$cache{$addr} = $str = $addr;
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} elsif ($str =~ /^.*[[](0x[^]]*)]$/) {
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my $addr = $1;
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return $cache{$addr} if (exists $cache{$addr});
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if ($binary ne "" && open (ADDR, "addr2line -e $binary $addr|")) {
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my $line = <ADDR>;
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chomp $line;
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close (ADDR);
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if ($line ne '??:0') {
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$cache{$addr} = $line;
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return $cache{$addr};
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}
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}
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$cache{$addr} = $str = $addr;
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}
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return $str;
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}
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$nr=0;
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open(DATA, "<$data") || die "Cannot open mtrace data file";
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while (<DATA>) {
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my @cols = split (' ');
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my $n, $where;
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if ($cols[0] eq "@") {
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# We have address and/or function name.
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$where=$cols[1];
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$n=2;
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} else {
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$where="";
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$n=0;
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}
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$allocaddr=$cols[$n + 1];
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$howmuch=hex($cols[$n + 2]);
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++$nr;
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SWITCH: {
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if ($cols[$n] eq "+") {
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if (defined $allocated{$allocaddr}) {
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printf ("+ %#0@XXX@x Alloc %d duplicate: %s %s\n",
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hex($allocaddr), $nr, &location($addrwas{$allocaddr}),
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$where);
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} else {
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$allocated{$allocaddr}=$howmuch;
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$addrwas{$allocaddr}=$where;
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}
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last SWITCH;
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}
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if ($cols[$n] eq "-") {
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if (defined $allocated{$allocaddr}) {
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undef $allocated{$allocaddr};
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undef $addrwas{$allocaddr};
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} else {
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printf ("- %#0@XXX@x Free %d was never alloc'd %s\n",
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hex($allocaddr), $nr, &location($where));
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}
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last SWITCH;
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}
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if ($cols[$n] eq "<") {
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if (defined $allocated{$allocaddr}) {
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undef $allocated{$allocaddr};
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undef $addrwas{$allocaddr};
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} else {
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printf ("- %#0@XXX@x Realloc %d was never alloc'd %s\n",
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hex($allocaddr), $nr, &location($where));
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}
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last SWITCH;
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}
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if ($cols[$n] eq ">") {
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if (defined $allocated{$allocaddr}) {
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printf ("+ %#0@XXX@x Realloc %d duplicate: %#010x %s %s\n",
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hex($allocaddr), $nr, $allocated{$allocaddr},
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&location($addrwas{$allocaddr}), &location($where));
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} else {
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$allocated{$allocaddr}=$howmuch;
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$addrwas{$allocaddr}=$where;
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}
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last SWITCH;
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}
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if ($cols[$n] eq "=") {
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# Ignore "= Start".
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last SWITCH;
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}
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if ($cols[$n] eq "!") {
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# Ignore failed realloc for now.
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last SWITCH;
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}
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}
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}
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close (DATA);
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# Now print all remaining entries.
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@addrs= keys %allocated;
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$anything=0;
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if ($#addrs >= 0) {
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foreach $addr (sort @addrs) {
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if (defined $allocated{$addr}) {
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if ($anything == 0) {
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print "\nMemory not freed:\n-----------------\n";
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print ' ' x (@XXX@ - 7), "Address Size Caller\n";
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$anything=1;
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}
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printf ("%#0@XXX@x %#8x at %s\n", hex($addr), $allocated{$addr},
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&location($addrwas{$addr}));
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}
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}
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}
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print "No memory leaks.\n" if ($anything == 0);
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exit $anything != 0;
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