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-rw-r--r--REORG.TODO/malloc/mtrace.pl237
1 files changed, 237 insertions, 0 deletions
diff --git a/REORG.TODO/malloc/mtrace.pl b/REORG.TODO/malloc/mtrace.pl
new file mode 100644
index 0000000000..4acbd81680
--- /dev/null
+++ b/REORG.TODO/malloc/mtrace.pl
@@ -0,0 +1,237 @@
+#! @PERL@
+eval "exec @PERL@ -S $0 $@"
+ if 0;
+# Copyright (C) 1997-2017 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+# Contributed by Ulrich Drepper <drepper@gnu.org>, 1997.
+# Based on the mtrace.awk script.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <http://www.gnu.org/licenses/>.
+
+$VERSION = "@VERSION@";
+$PKGVERSION = "@PKGVERSION@";
+$REPORT_BUGS_TO = '@REPORT_BUGS_TO@';
+$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) 2017 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 ("+ %#0@XXX@x Alloc %d duplicate: %s %s\n",
+ hex($allocaddr), $nr, &location($addrwas{$allocaddr}),
+ $where);
+ } elsif ($allocaddr =~ /^0x/) {
+ $allocated{$allocaddr}=$howmuch;
+ $addrwas{$allocaddr}=$where;
+ }
+ last SWITCH;
+ }
+ if ($cols[$n] eq "-") {
+ if (defined $allocated{$allocaddr}) {
+ undef $allocated{$allocaddr};
+ undef $addrwas{$allocaddr};
+ } else {
+ printf ("- %#0@XXX@x 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 ("- %#0@XXX@x Realloc %d was never alloc'd %s\n",
+ hex($allocaddr), $nr, &location($where));
+ }
+ last SWITCH;
+ }
+ if ($cols[$n] eq ">") {
+ if (defined $allocated{$allocaddr}) {
+ printf ("+ %#0@XXX@x 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 (@XXX@ - 7), "Address Size Caller\n";
+ $anything=1;
+ }
+ printf ("%#0@XXX@x %#8x at %s\n", hex($addr), $allocated{$addr},
+ &location($addrwas{$addr}));
+ }
+ }
+}
+print "No memory leaks.\n" if ($anything == 0);
+
+exit $anything != 0;
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