2 eval "exec @PERL@ -S $0 $@"
4 # Copyright (C) 1997-2017 Free Software Foundation, Inc.
5 # This file is part of the GNU C Library.
6 # Contributed by Ulrich Drepper <drepper@gnu.org>, 1997.
7 # Based on the mtrace.awk script.
9 # The GNU C Library is free software; you can redistribute it and/or
10 # modify it under the terms of the GNU Lesser General Public
11 # License as published by the Free Software Foundation; either
12 # version 2.1 of the License, or (at your option) any later version.
14 # The GNU C Library is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 # Lesser General Public License for more details.
19 # You should have received a copy of the GNU Lesser General Public
20 # License along with the GNU C Library; if not, see
21 # <http://www.gnu.org/licenses/>.
23 $VERSION = "@VERSION@";
24 $PKGVERSION = "@PKGVERSION@";
25 $REPORT_BUGS_TO = '@REPORT_BUGS_TO@';
29 print "Usage: mtrace [OPTION]... [Binary] MtraceData\n";
30 print " --help print this help, then exit\n";
31 print " --version print version number, then exit\n";
33 print "For bug reporting instructions, please see:\n";
34 print "$REPORT_BUGS_TO.\n";
38 # We expect two arguments:
39 # #1: the complete path to the binary
40 # #2: the mtrace data filename
41 # The usual options are also recognized.
43 arglist: while (@ARGV) {
44 if ($ARGV[0] eq "--v" || $ARGV[0] eq "--ve" || $ARGV[0] eq "--ver" ||
45 $ARGV[0] eq "--vers" || $ARGV[0] eq "--versi" ||
46 $ARGV[0] eq "--versio" || $ARGV[0] eq "--version") {
47 print "mtrace $PKGVERSION$VERSION\n";
48 print "Copyright (C) 2016 Free Software Foundation, Inc.\n";
49 print "This is free software; see the source for copying conditions. There is NO\n";
50 print "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n";
51 print "Written by Ulrich Drepper <drepper\@gnu.org>\n";
54 } elsif ($ARGV[0] eq "--h" || $ARGV[0] eq "--he" || $ARGV[0] eq "--hel" ||
55 $ARGV[0] eq "--help") {
57 } elsif ($ARGV[0] =~ /^-/) {
58 print "$progname: unrecognized option `$ARGV[0]'\n";
59 print "Try `$progname --help' for more information.\n";
69 } elsif ($#ARGV == 1) {
73 if ($binary =~ /^.*[\/].*$/) {
78 if (open (LOCS, "env LD_TRACE_LOADED_OBJECTS=1 $prog |")) {
81 if (/^.*=> (.*) .(0x[0123456789abcdef]*).$/) {
88 die "Wrong number of arguments, run $progname --help for help.";
93 return $str if ($str eq "");
94 if ($str =~ /.*[[](0x[^]]*)]:(.)*/) {
97 return $cache{$addr} if (exists $cache{$addr});
98 if ($binary ne "" && open (ADDR, "addr2line -e $binary $addr|")) {
102 if ($line ne '??:0') {
103 $cache{$addr} = $line;
104 return $cache{$addr};
107 $cache{$addr} = $str = "$fct @ $addr";
108 } elsif ($str =~ /^(.*):.*[[](0x[^]]*)]$/) {
112 return $cache{$addr} if (exists $cache{$addr});
113 if ($locs{$prog} ne "") {
114 $searchaddr = sprintf "%#x", $addr - $locs{$prog};
119 if ($binary ne "" && open (ADDR, "addr2line -e $prog $searchaddr|")) {
123 if ($line ne '??:0') {
124 $cache{$addr} = $line;
125 return $cache{$addr};
128 $cache{$addr} = $str = $addr;
129 } elsif ($str =~ /^.*[[](0x[^]]*)]$/) {
131 return $cache{$addr} if (exists $cache{$addr});
132 if ($binary ne "" && open (ADDR, "addr2line -e $binary $addr|")) {
136 if ($line ne '??:0') {
137 $cache{$addr} = $line;
138 return $cache{$addr};
141 $cache{$addr} = $str = $addr;
147 open(DATA, "<$data") || die "Cannot open mtrace data file";
149 my @cols = split (' ');
151 if ($cols[0] eq "@") {
152 # We have address and/or function name.
160 $allocaddr=$cols[$n + 1];
161 $howmuch=hex($cols[$n + 2]);
165 if ($cols[$n] eq "+") {
166 if (defined $allocated{$allocaddr}) {
167 printf ("+ %#0@XXX@x Alloc %d duplicate: %s %s\n",
168 hex($allocaddr), $nr, &location($addrwas{$allocaddr}),
170 } elsif ($allocaddr =~ /^0x/) {
171 $allocated{$allocaddr}=$howmuch;
172 $addrwas{$allocaddr}=$where;
176 if ($cols[$n] eq "-") {
177 if (defined $allocated{$allocaddr}) {
178 undef $allocated{$allocaddr};
179 undef $addrwas{$allocaddr};
181 printf ("- %#0@XXX@x Free %d was never alloc'd %s\n",
182 hex($allocaddr), $nr, &location($where));
186 if ($cols[$n] eq "<") {
187 if (defined $allocated{$allocaddr}) {
188 undef $allocated{$allocaddr};
189 undef $addrwas{$allocaddr};
191 printf ("- %#0@XXX@x Realloc %d was never alloc'd %s\n",
192 hex($allocaddr), $nr, &location($where));
196 if ($cols[$n] eq ">") {
197 if (defined $allocated{$allocaddr}) {
198 printf ("+ %#0@XXX@x Realloc %d duplicate: %#010x %s %s\n",
199 hex($allocaddr), $nr, $allocated{$allocaddr},
200 &location($addrwas{$allocaddr}), &location($where));
202 $allocated{$allocaddr}=$howmuch;
203 $addrwas{$allocaddr}=$where;
207 if ($cols[$n] eq "=") {
211 if ($cols[$n] eq "!") {
212 # Ignore failed realloc for now.
219 # Now print all remaining entries.
220 @addrs= keys %allocated;
223 foreach $addr (sort @addrs) {
224 if (defined $allocated{$addr}) {
225 if ($anything == 0) {
226 print "\nMemory not freed:\n-----------------\n";
227 print ' ' x (@XXX@ - 7), "Address Size Caller\n";
230 printf ("%#0@XXX@x %#8x at %s\n", hex($addr), $allocated{$addr},
231 &location($addrwas{$addr}));
235 print "No memory leaks.\n" if ($anything == 0);