mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 04:50:07 +00:00
1059defeee
I've updated copyright dates in glibc for 2024. This is the patch for the changes not generated by scripts/update-copyrights and subsequent build / regeneration of generated files.
243 lines
6.3 KiB
Perl
243 lines
6.3 KiB
Perl
#! @PERL@
|
|
eval "exec @PERL@ -S $0 $@"
|
|
if 0;
|
|
# Copyright (C) 1997-2024 Free Software Foundation, Inc.
|
|
# This file is part of the GNU C Library.
|
|
# 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
|
|
# <https://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) 2024 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";
|
|
}
|
|
# Set the environment variable LD_TRACE_LOADED_OBJECTS to 2 so the
|
|
# executable is also printed.
|
|
if (open (locs, "env LD_TRACE_LOADED_OBJECTS=2 $prog |")) {
|
|
while (<locs>) {
|
|
chop;
|
|
if (/^.*=> (.*) .(0x[0123456789abcdef]*).$/) {
|
|
$locs{$1} = $2;
|
|
$rel{$1} = hex($2);
|
|
}
|
|
}
|
|
close (LOCS);
|
|
}
|
|
} else {
|
|
die "Wrong number of arguments, run $progname --help for help.";
|
|
}
|
|
|
|
sub addr2line {
|
|
my $addr = pop(@_);
|
|
my $prog = pop(@_);
|
|
if (open (ADDR, "addr2line -e $prog $addr|")) {
|
|
my $line = <ADDR>;
|
|
chomp $line;
|
|
close (ADDR);
|
|
if ($line ne '??:0') {
|
|
return $line
|
|
}
|
|
}
|
|
}
|
|
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 "") {
|
|
my $line = &addr2line($binary, $addr);
|
|
if ($line) {
|
|
$cache{$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});
|
|
$searchaddr = sprintf "%#x", hex($addr) + $rel{$prog};
|
|
if ($binary ne "") {
|
|
for my $address ($searchaddr, $addr) {
|
|
my $line = &addr2line($prog, $address);
|
|
if ($line) {
|
|
$cache{$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 "") {
|
|
my $line = &addr2line($binary, $addr);
|
|
if ($line) {
|
|
$cache{$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;
|