summaryrefslogtreecommitdiff
path: root/extra/scripts/relinfo.pl
diff options
context:
space:
mode:
Diffstat (limited to 'extra/scripts/relinfo.pl')
-rwxr-xr-xextra/scripts/relinfo.pl78
1 files changed, 78 insertions, 0 deletions
diff --git a/extra/scripts/relinfo.pl b/extra/scripts/relinfo.pl
new file mode 100755
index 000000000..ec4a5df13
--- /dev/null
+++ b/extra/scripts/relinfo.pl
@@ -0,0 +1,78 @@
+#! /usr/bin/perl
+eval "exec /usr/bin/perl -S $0 $*"
+ if 0;
+# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc.
+# Written by Ulrich Drepper <drepper@redhat.com>, 2000.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+for ($cnt = 0; $cnt <= $#ARGV; ++$cnt) {
+ $relent = 0;
+ $relsz = 0;
+ $relcount = 0;
+ $pltrelsz = 0;
+ $extplt = 0;
+ $users = 0;
+
+ open (READLINK, "readlink -f $ARGV[$cnt] |") || die "cannot open readlink";
+ while (<READLINK>) {
+ chop;
+ $fullpath = $_;
+ }
+ close (READLINK);
+
+ open (READELF, "eu-readelf -d $ARGV[$cnt] |") || die "cannot open $ARGV[$cnt]";
+ while (<READELF>) {
+ chop;
+ if (/.* RELA?ENT *([0-9]*).*/) {
+ $relent = $1 + 0;
+ } elsif (/.* RELA?SZ *([0-9]*).*/) {
+ $relsz = $1 + 0;
+ } elsif (/.* RELA?COUNT *([0-9]*).*/) {
+ $relcount = $1 + 0;
+ } elsif (/.* PLTRELSZ *([0-9]*).*/) {
+ $pltrelsz = $1 + 0;
+ }
+ }
+ close (READELF);
+
+ open (READELF, "eu-readelf -r $ARGV[$cnt] | sed '/'.gnu.conflict'/,/^\$/d' |") || die "cannot open $ARGV[$cnt]";
+ while (<READELF>) {
+ chop;
+ if (/.*JU?MP_SLOT *0+ .*/) {
+ ++$extplt;
+ }
+ }
+ close (READELF);
+
+ if (open (PRELINK, "/usr/sbin/prelink -p 2>/dev/null | fgrep \"$fullpath\" |")) {
+ while (<PRELINK>) {
+ ++$users;
+ }
+ close(PRELINK);
+ } else {
+ $users = -1;
+ }
+
+ printf ("%s: %d relocations, %d relative (%d%%), %d PLT entries, %d for local syms (%d%%)",
+ $ARGV[$cnt], $relent == 0 ? 0 : $relsz / $relent, $relcount,
+ $relent == 0 ? 0 : ($relcount * 100) / ($relsz / $relent),
+ $relent == 0 ? 0 : $pltrelsz / $relent,
+ $relent == 0 ? 0 : $pltrelsz / $relent - $extplt,
+ $relent == 0 ? 0 : (($pltrelsz / $relent - $extplt) * 100) / ($pltrelsz / $relent));
+ if ($users >= 0) {
+ printf(", %d users", $users);
+ }
+ printf("\n");
+}