aboutsummaryrefslogtreecommitdiff
path: root/malloc/mtrace.pl
diff options
context:
space:
mode:
Diffstat (limited to 'malloc/mtrace.pl')
-rw-r--r--malloc/mtrace.pl192
1 files changed, 192 insertions, 0 deletions
diff --git a/malloc/mtrace.pl b/malloc/mtrace.pl
new file mode 100644
index 0000000..46d8425
--- /dev/null
+++ b/malloc/mtrace.pl
@@ -0,0 +1,192 @@
+#! @PERL@
+eval "exec @PERL@ -S $0 $*"
+ if 0;
+# Copyright (C) 1997 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+# Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1997.
+# Based on the mtrace.awk script.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB. If not,
+# write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+$VERSION = "@VERSION@";
+$PACKAGE = "libc";
+$progname = $0;
+
+sub usage {
+ print "Usage: mtrace [OPTION]... [Binary] MtraceData\n";
+ print " --help print this help, then exit\n";
+ print " --version print version number, then exit\n";
+ exit 0;
+}
+
+# We expect two arguments:
+# #1: the complete path to the binary
+# #2: the mtrace data filename
+# The usual options are also recognized.
+
+arglist: while (@ARGV) {
+ if ($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 (GNU $PACKAGE) $VERSION\n";
+ print "Copyright (C) 1997 Free Software Foundation, Inc.\n";
+ print "This is free software; see the source for copying conditions. There is NO\n";
+ print "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n";
+ print "Written by Ulrich Drepper <drepper\@gnu.ai.mit.edu>\n";
+
+ exit 0;
+ } elsif ($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];
+} else {
+ die "Wrong number of arguments.";
+}
+
+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 $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, $wherewas{$allocaddr}, $where);
+ } else {
+ $allocated{$allocaddr}=$howmuch;
+ $wherewas{$allocaddr}=&location($where);
+ }
+ last SWITCH;
+ }
+ if ($cols[$n] eq "-") {
+ if (defined $allocated{$allocaddr}) {
+ undef $allocated{$allocaddr};
+ undef $wherewas{$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 $wherewas{$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},
+ $wherewas{$allocaddr}, &location($where));
+ } else {
+ $allocated{$allocaddr}=$howmuch;
+ $wherewas{$allocaddr}=&location($where);
+ }
+ last SWITCH;
+ }
+ if ($cols[$n] eq "=") {
+ # Ignore "= Start".
+ last SWITCH;
+ }
+ if ($cols[$n] eq "!") {
+ # Ignore failed realloc for now.
+ last SWITCH;
+ }
+ }
+}
+close (DATA);
+
+# Now print all remaining entries.
+@addrs= keys %allocated;
+if ($#addrs >= 0) {
+ print "\nNot freed memory:\n-----------------\n";
+ print ' ' x (@XXX@ - 7), "Address Size Caller\n";
+ foreach $addr (sort @addrs) {
+ if (defined $allocated{$addr}) {
+ printf ("%#0@XXX@x %#8x at %s\n", hex($addr), $allocated{$addr},
+ $wherewas{$addr});
+ }
+ }
+}
+
+exit 0;