xref: /titanic_51/usr/src/tools/scripts/check_rtime.pl (revision b8201470142151ac3303d2d0b875fc282299de45)
1#!/usr/perl5/bin/perl -w
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27#
28
29#
30# Check ELF information.
31#
32# This script descends a directory hierarchy inspecting ELF dynamic executables
33# and shared objects.  The general theme is to verify that common Makefile rules
34# have been used to build these objects.  Typical failures occur when Makefile
35# rules are re-invented rather than being inherited from "cmd/lib" Makefiles.
36#
37# As always, a number of components don't follow the rules, and these are
38# excluded to reduce this scripts output.  Pathnames used for this exclusion
39# assume this script is being run over a "proto" area.  The -a (all) option
40# skips any exclusions.
41#
42# By default any file that has conditions that should be reported is first
43# listed and then each condition follows.  The -o (one-line) option produces a
44# more terse output which is better for sorting/diffing with "nightly".
45#
46# NOTE: missing dependencies, symbols or versions are reported by running the
47# file through ldd(1).  As objects within a proto area are built to exist in a
48# base system, standard use of ldd(1) will bind any objects to dependencies
49# that exist in the base system.  It is frequently the case that newer objects
50# exist in the proto area that are required to satisfy other objects
51# dependencies, and without using these newer objects an ldd(1) will produce
52# misleading error messages.  To compensate for this, the -d option (or the
53# existence of the CODEMSG_WS/ROOT environment variables) cause the creation of
54# alternative dependency mappings via crle(1) configuration files that establish
55# any proto shared objects as alternatives to their base system location.  Thus
56# ldd(1) can be executed against these configuration files so that objects in a
57# proto area bind to their dependencies in the same proto area.
58
59
60# Define all global variables (required for strict)
61use vars  qw($SkipDirs $SkipFiles $SkipTextrelFiles $SkipDirectBindFiles);
62use vars  qw($SkipUndefFiles $SkipUnusedDeps);
63use vars  qw($SkipStabFiles $SkipNoExStkFiles $SkipCrleConf);
64use vars  qw($SkipUnusedSearchPath $SkipUnrefObject $SkipUnusedObject);
65use vars  qw($Prog $Mach $Isalist $Env $Ena64 $Tmpdir $Error $Gnuc);
66use vars  qw($UnusedPaths $LddNoU $Crle32 $Crle64 $Conf32 $Conf64);
67use vars  qw($SkipDirectBindDirs $SkipInterps $SkipSymSort $OldDeps %opt);
68
69use strict;
70
71
72# Define any directories we should skip completely.
73$SkipDirs = qr{
74	usr/lib/devfsadm |		# 4382889
75	usr/lib/libc |			# optimized libc
76	usr/lib/rcm |			# 4426119
77	usr/perl5 |			# alan's taking care of these :-)
78	usr/src				# no need to look at shipped source
79}x;
80
81# Define any files we should skip completely.
82$SkipFiles = qr{ ^(?:
83	lddstub |			# lddstub has no dependencies
84	geniconvtbl\.so |		# 4384329
85	libssagent\.so\.1 |		# 4328854
86	libpsvcplugin_psr\.so\.1 |	# 4385799
87	libpsvcpolicy_psr\.so\.1 |	#  "  "
88	libpsvcpolicy\.so\.1 |		#  "  "
89	picl_slm\.so |			#  "  "
90	mod_ipp\.so |			# Apache loadable module
91	fptest |	# USIII specific extns. cause ldd noise on USII bld. m/c
92	grub
93	)$
94}x;
95
96# Define any files that are allowed text relocations.
97$SkipTextrelFiles = qr{ ^(?:
98	unix |				# kernel models are non-pic
99	mdb				# relocations against __RTC (dbx)
100	)$
101}x;
102
103# Define any directories or files that are allowed to have no direct bound
104# symbols
105$SkipDirectBindDirs = qr{
106	usr/ucb
107}x;
108
109$SkipDirectBindFiles = qr{ ^(?:
110	unix |
111	sbcp |
112	libproc.so.1 |
113	libnisdb.so.2
114	)$
115}x;
116
117# Define any files that are allowed undefined references.
118
119$SkipUndefFiles = qr{ ^(?:
120	libsvm\.so\.1 |			# libspmicommon.so.1 lacking
121	libnisdb\.so\.2			# C++
122	)$
123}x;
124
125# Define any files that have unused dependencies.
126$SkipUnusedDeps = qr{
127	lib/picl/plugins/ |		# require devtree dependencies
128	/lib/libp			# profile libc makes libm an unused
129}x;					#	dependency of standard libc
130
131# Define any objects that always look unused.
132$SkipUnusedObject = qr{
133	/libm_hwcap[0-9]+\.so\.2	# libm.so.2 dependency
134}x;
135
136# Define any files that should contain debugging information.
137$SkipStabFiles = qr{ ^(?:
138	unix
139	)$
140}x;
141
142# Define any files that don't require a non-executable stack definition.
143$SkipNoExStkFiles = qr{ ^(?:
144	forth |
145	unix |
146	multiboot
147	)$
148}x;
149
150# Identify any files that should be skipped when building a crle(1)
151# configuration file.  As the hwcap libraries can be loop-back mounted onto
152# libc, these can confuse crle(1) because of their identical dev/inode.
153$SkipCrleConf = qr{
154	lib/libc/libc_hwcap
155}x;
156
157# Skip "unused search path=" ldd(1) diagnostics.
158$SkipUnusedSearchPath = qr{
159	/usr/lib/fs/autofs.*\ from\ .automountd |		# dlopen()
160	/etc/ppp/plugins.*\ from\ .*pppd |			# dlopen()
161	/usr/lib/inet/ppp.*\ from\ .*pppd |			# dlopen()
162	/usr/sfw/lib.*\ from\ .*libipsecutil.so.1 |		# dlopen()
163	/usr/platform/.*rsmlib.*\ from\ .*librsm.so.2 |		# dlopen()
164	\$ORIGIN.*\ from\ .*fcode.so |				# dlopen()
165	/opt/VRTSvxvm/lib.*\ from\ .*libdiskmgt\.so\.1 |	# dlopen()
166	/usr/platform/.*\ from\ .*/usr/platform |		# picl
167	/usr/lib/picl/.*\ from\ .*/usr/platform |		# picl
168	/usr/platform/.*\ from\ .*/usr/lib/picl |		# picl
169	/usr/lib/smbsrv.*\ from\ .*libsmb\.so\.1 |		# future needs
170	/usr/lib/mps/secv1.*\ from\ .*libnss3\.so |		# non-OSNet
171	/usr/lib/mps.*\ from\ .*libnss3\.so |			# non-OSNet
172	/usr/sfw/lib.*\ from\ .*libdbus-1\.so\.3 |		# non-OSNet
173	/usr/sfw/lib.*\ from\ .*libdbus-glib-1\.so\.2 |		# non-OSNet
174	/usr/sfw/lib.*\ from\ .*libglib-2\.0\.so\.0 |		# non-OSNet
175	/usr/X11/lib.*\ from\ .*libglib-2\.0\.so\.0 |		# non-OSNet
176	/usr/sfw/lib.*\ from\ .*libgobject-2\.0\.so\.0 |	# non-OSNet
177	/usr/X11/lib.*\ from\ .*libgobject-2\.0\.so\.0 |	# non-OSNet
178	/usr/sfw/lib.*\ from\ .*libcrypto\.so\.0\.9\.8 |	# non-OSNet
179	/usr/sfw/lib.*\ from\ .*libnetsnmp\.so\.5 |		# non-OSNet
180	/usr/sfw/lib.*\ from\ .*libgcc_s\.so\.1 |		# non-OSNet
181	/usr.*\ from\ .*tst\.gcc\.exe |				# gcc built
182	/usr/postgres/8.3/lib.*\ from\ .*libpq\.so\.5 |		# non-OSNET
183	/usr/sfw/lib.*\ from\ .*libpq\.so\.5			# non-OSNET
184}x;
185
186# Skip "unreferenced object=" ldd(1) diagnostics.
187$SkipUnrefObject = qr{
188	/libmapmalloc\.so\.1;\ unused\ dependency\ of |		# interposer
189	/libstdc\+\+\.so\.6;\ unused\ dependency\ of |		# gcc build
190	/libm\.so\.2.*\ of\ .*libstdc\+\+\.so\.6 |		# gcc build
191	/lib.*\ of\ .*/lib/picl/plugins/ |			# picl
192	/lib.*\ of\ .*libcimapi\.so |				# non-OSNET
193	/lib.*\ of\ .*libjvm\.so |				# non-OSNET
194	/lib.*\ of\ .*libnetsnmp\.so\.5 |			# non-OSNET
195	/lib.*\ of\ .*libnetsnmpagent\.so\.5 |			# non-OSNET
196	/lib.*\ of\ .*libnetsnmpmibs\.so\.5 |			# non-OSNET
197	/lib.*\ of\ .*libnetsnmphelpers\.so\.5 |		# non-OSNET
198	/lib.*\ of\ .*libnspr4\.so |				# non-OSNET
199	/lib.*\ of\ .*libsoftokn3\.so |				# non-OSNET
200	/lib.*\ of\ .*libspmicommon\.so\.1 |			# non-OSNET
201	/lib.*\ of\ .*libspmocommon\.so\.1 |			# non-OSNET
202	/lib.*\ of\ .*libssl3\.so |				# non-OSNET
203	/lib.*\ of\ .*libxml2\.so\.2 |				# non-OSNET
204	/lib.*\ of\ .*libxslt\.so\.1 |				# non-OSNET
205	/lib.*\ of\ .*libpq\.so\.4 				# non-OSNET
206}x;
207
208# Define any files that should only have unused (ldd -u) processing.
209$UnusedPaths = qr{
210	ucb/shutdown			# libucb interposes on libc and makes
211					# dependencies on libc seem unnecessary
212}x;
213
214# Define interpreters we should ignore.
215$SkipInterps = qr{
216	misc/krtld |
217	misc/amd64/krtld |
218	misc/sparcv9/krtld
219}x;
220
221# Catch libintl and libw, although ld(1) will bind to these and thus determine
222# they're needed, their content was moved into libc as of on297 build 7.
223# libthread and libpthread were completely moved into libc as of on10 build 53.
224# libdl was moved into libc as of on10 build 49.  librt and libaio were moved
225# into libc as of Nevada build 44.
226$OldDeps = qr{ ^(?:
227	libintl\.so\.1 |
228	libw\.so\.1 |
229	libthread\.so\.1 |
230	libpthread\.so\.1 |
231	libdl\.so\.1 |
232	librt\.so\.1 |
233	libaio\.so\.1
234	)$
235}x;
236
237# Files for which we skip checking of duplicate addresses in the
238# symbol sort sections. Such exceptions should be rare --- most code will
239# not have duplicate addresses, since it takes assember or a "#pragma weak"
240# to do such aliasing in C. C++ is different: The compiler generates aliases
241# for implementation reasons, and the mangled names used to encode argument
242# and return value types are difficult to handle well in mapfiles.
243# Furthermore, the Sun compiler and gcc use different and incompatible
244# name mangling conventions. Since ON must be buildable by either, we
245# would have to maintain two sets of mapfiles for each such object.
246# C++ use is rare in ON, so this is not worth pursuing.
247#
248$SkipSymSort = qr{ ^.*(?:
249	opt/SUNWdtrt/tst/common/pid/tst.weak2.exe |	# DTrace test
250	lib/amd64/libnsl\.so\.1 |			# C++
251	lib/sparcv9/libnsl\.so\.1 |			# C++
252	lib/sparcv9/libfru\.so\.1 |			# C++
253	usr/lib/sgml/nsgmls |				# C++
254	ld\.so\.1 |					# libc_pic.a user
255	lib/libsun_fc\.so\.1 |				# C++
256	lib/amd64/libsun_fc\.so\.1 |			# C++
257	lib/sparcv9/libsun_fc\.so\.1 			# C++
258	)$
259}x;
260
261use Getopt::Std;
262
263# -----------------------------------------------------------------------------
264
265# Reliably compare two OS revisions.  Arguments are <ver1> <op> <ver2>.
266# <op> is the string form of a normal numeric comparison operator.
267sub cmp_os_ver {
268	my @ver1 = split(/\./, $_[0]);
269	my $op = $_[1];
270	my @ver2 = split(/\./, $_[2]);
271
272	push @ver2, ("0") x $#ver1 - $#ver2;
273	push @ver1, ("0") x $#ver2 - $#ver1;
274
275	my $diff = 0;
276	while (@ver1 || @ver2) {
277		if (($diff = shift(@ver1) - shift(@ver2)) != 0) {
278			last;
279		}
280	}
281	return (eval "$diff $op 0" ? 1 : 0);
282}
283
284# This script relies on ldd returning output reflecting only the binary
285# contents.  But if LD_PRELOAD* environment variables are present, libraries
286# named by them will also appear in the output, disrupting our analysis.
287# So, before we get too far, scrub the environment.
288
289delete($ENV{LD_PRELOAD});
290delete($ENV{LD_PRELOAD_32});
291delete($ENV{LD_PRELOAD_64});
292
293# Establish a program name for any error diagnostics.
294chomp($Prog = `basename $0`);
295
296# Determine what machinery is available.
297$Mach = `uname -p`;
298$Isalist = `isalist`;
299$Env = "";
300if ($Mach =~ /sparc/) {
301	if ($Isalist =~ /sparcv9/) {
302		$Ena64 = "ok";
303	}
304} elsif ($Mach =~ /i386/) {
305	if ($Isalist =~ /amd64/) {
306		$Ena64 = "ok";
307	}
308}
309
310# Check that we have arguments.
311if ((getopts('ad:imosv', \%opt) == 0) || ($#ARGV == -1)) {
312	print "usage: $Prog [-a] [-d depdir] [-m] [-o] [-s] file | dir, ...\n";
313	print "\t[-a]\t\tprocess all files (ignore any exception lists)\n";
314	print "\t[-d dir]\testablish dependencies from under directory\n";
315	print "\t[-i]\t\tproduce dynamic table entry information\n";
316	print "\t[-m]\t\tprocess mcs(1) comments\n";
317	print "\t[-o]\t\tproduce one-liner output (prefixed with pathname)\n";
318	print "\t[-s]\t\tprocess .stab and .symtab entries\n";
319	print "\t[-v]\t\tprocess version definition entries\n";
320	exit 1;
321} else {
322	my($Proto);
323
324	if ($opt{d}) {
325		# User specified dependency directory - make sure it exists.
326		if (! -d $opt{d}) {
327			print "$Prog: $opt{d} is not a directory\n";
328			exit 1;
329		}
330		$Proto = $opt{d};
331
332	} elsif ($ENV{CODEMGR_WS}) {
333		my($Root);
334
335		# Without a user specified dependency directory see if we're
336		# part of a codemanager workspace and if a proto area exists.
337		if (($Root = $ENV{ROOT}) && (-d $Root)) {
338			$Proto = $Root;
339		}
340	}
341
342	if (!($Tmpdir = $ENV{TMPDIR}) || (! -d $Tmpdir)) {
343		$Tmpdir = "/tmp";
344	}
345
346	# Determine whether this is a __GNUC build.  If so, unused search path
347	# processing is disabled.
348	if (defined $ENV{__GNUC}) {
349		$Gnuc = 1;
350	} else {
351		$Gnuc = 0;
352	}
353
354	# Look for dependencies under $Proto.
355	if ($Proto) {
356		# To support alternative dependency mapping we'll need ldd(1)'s
357		# -e option.  This is relatively new (s81_30), so make sure
358		# ldd(1) is capable before gathering any dependency information.
359		if (system('ldd -e /usr/lib/lddstub 2> /dev/null')) {
360			print "ldd: does not support -e, unable to ";
361			print "create alternative dependency mappingings.\n";
362			print "ldd: option added under 4390308 (s81_30).\n\n";
363		} else {
364			# Gather dependencies and construct a alternative
365			# dependency mapping via a crle(1) configuration file.
366			GetDeps($Proto, "/");
367			GenConf();
368		}
369	}
370
371	# To support unreferenced dependency detection we'll need ldd(1)'s -U
372	# option.  This is relatively new (4638070), and if not available we
373	# can still fall back to -u.  Even with this option, don't use -U with
374	# releases prior to 5.10 as the cleanup for -U use only got integrated
375	# into 5.10 under 4642023.  Note, that nightly doesn't typically set a
376	# RELEASE from the standard <env> files.  Users who wish to disable use
377	# of ldd(1)'s -U should set (or uncomment) RELEASE in their <env> file
378	# if using nightly, or otherwise establish it in their environment.
379	if (system('ldd -U /usr/lib/lddstub 2> /dev/null')) {
380		$LddNoU = 1;
381	} else {
382		my($Release);
383
384		if (($Release = $ENV{RELEASE}) &&
385		    (cmp_os_ver($Release, "<", "5.10"))) {
386			$LddNoU = 1;
387		} else {
388			$LddNoU = 0;
389		}
390	}
391
392	# For each argument determine if we're dealing with a file or directory.
393	foreach my $Arg (@ARGV) {
394		# Ignore symbolic links.
395		if (-l $Arg) {
396			next;
397		}
398
399		if (!stat($Arg)) {
400			next;
401		}
402
403		# Process simple files.
404		if (-f _) {
405			my($RelPath) = $Arg;
406			my($File) = $Arg;
407			my($Secure) = 0;
408
409			$RelPath =~ s!^.*/!./!;
410			$File =~ s!^.*/!!;
411
412			if (-u _ || -g _) {
413				$Secure = 1;
414			}
415
416			ProcFile($Arg, $RelPath, $File, $Secure);
417			next;
418		}
419		# Process directories.
420		if (-d _) {
421			ProcDir($Arg, ".");
422			next;
423		}
424
425		print "$Arg is not a file or directory\n";
426		$Error = 1;
427	}
428
429	# Cleanup
430	CleanUp();
431}
432
433$Error = 0;
434
435# Clean up any temporary files.
436sub CleanUp {
437	if ($Crle64) {
438		unlink $Crle64;
439	}
440	if ($Conf64) {
441		unlink $Conf64;
442	}
443	if ($Crle32) {
444		unlink $Crle32;
445	}
446	if ($Conf32) {
447		unlink $Conf32;
448	}
449}
450
451# Create an output message, either a one-liner (under -o) or preceded by the
452# files relative pathname as a title.
453sub OutMsg {
454	my($Ttl, $Path, $Msg) = @_;
455
456	if ($opt{o}) {
457		$Msg =~ s/^[ \t]*//;
458		print "$Path: $Msg\n";
459	} else {
460		if ($Ttl eq 0) {
461			print "==== $Path ====\n";
462		}
463		print "$Msg\n";
464	}
465}
466
467# Determine whether this a ELF dynamic object and if so investigate its runtime
468# attributes.
469sub ProcFile {
470	my($FullPath, $RelPath, $File, $Secure) = @_;
471	my(@Elf, @Ldd, $Dyn, $Intp, $Dll, $Ttl, $Sym, $Interp, $Stack);
472	my($Sun, $Relsz, $Pltsz, $Tex, $Stab, $Strip, $Lddopt, $SymSort);
473	my($Val, $Header, $SkipLdd, $IsX86, $RWX, $UnDep);
474	my($HasDirectBinding, $HasVerdef);
475
476	# Ignore symbolic links.
477	if (-l $FullPath) {
478		return;
479	}
480
481	$Ttl = 0;
482	@Ldd = 0;
483
484	# Determine whether we have access to inspect the file.
485	if (!(-r $FullPath)) {
486		OutMsg($Ttl++, $RelPath,
487		    "\tunable to inspect file: permission denied");
488		return;
489	}
490
491	# Determine if this is a file we don't care about.
492	if (!$opt{a}) {
493		if ($File =~ $SkipFiles) {
494			return;
495		}
496	}
497
498	# Determine whether we have a executable (static or dynamic) or a
499	# shared object.
500	@Elf = split(/\n/, `elfdump -epdicyv $FullPath 2>&1`);
501
502	$Dyn = $Intp = $Dll = $Stack = $IsX86 = $RWX = 0;
503	$Interp = 1;
504	$Header = 'None';
505	foreach my $Line (@Elf) {
506		# If we have an invalid file type (which we can tell from the
507		# first line), or we're processing an archive, bail.
508		if ($Header eq 'None') {
509			if (($Line =~ /invalid file/) ||
510			    ($Line =~ /$FullPath(.*):/)) {
511				return;
512			}
513		}
514
515		if ($Line =~ /^ELF Header/) {
516			$Header = 'Ehdr';
517
518		} elsif ($Line =~ /^Program Header/) {
519			$Header = 'Phdr';
520			$RWX = 0;
521
522		} elsif ($Line =~ /^Interpreter/) {
523			$Header = 'Intp';
524
525		} elsif ($Line =~ /^Dynamic Section/) {
526			# A dynamic section indicates we're a dynamic object
527			# (this makes sure we don't check static executables).
528			$Dyn = 1;
529
530		} elsif (($Header eq 'Ehdr') && ($Line =~ /e_type:/)) {
531			# The e_type field indicates whether this file is a
532			# shared object (ET_DYN) or an executable (ET_EXEC).
533			if ($Line =~ /ET_DYN/) {
534				$Dll = 1;
535			} elsif ($Line !~ /ET_EXEC/) {
536				return;
537			}
538		} elsif (($Header eq 'Ehdr') && ($Line =~ /ei_class:/)) {
539			# If we encounter a 64-bit object, but we're not running
540			# on a 64-bit system, suppress calling ldd(1).
541			if (($Line =~ /ELFCLASS64/) && !$Ena64) {
542				$SkipLdd = 1;
543			}
544		} elsif (($Header eq 'Ehdr') && ($Line =~ /e_machine:/)) {
545			# If it's a X86 object, we need to enforce RW- data.
546			if (($Line =~ /(EM_AMD64|EM_386)/)) {
547				$IsX86 = 1;
548			}
549		} elsif (($Header eq 'Phdr') &&
550		    ($Line =~ /\[ PF_X  PF_W  PF_R \]/)) {
551			# RWX segment seen.
552			$RWX = 1;
553
554		} elsif (($Header eq 'Phdr') &&
555		    ($Line =~ /\[ PT_LOAD \]/ && $RWX && $IsX86)) {
556			# Seen an RWX PT_LOAD segment.
557			if ($File !~ $SkipNoExStkFiles) {
558				OutMsg($Ttl++, $RelPath,
559				    "\tapplication requires non-executable " .
560				    "data\t<no -Mmapfile_noexdata?>");
561			}
562
563		} elsif (($Header eq 'Phdr') &&
564		    ($Line =~ /\[ PT_SUNWSTACK \]/)) {
565			# This object defines a non-executable stack.
566			$Stack = 1;
567
568		} elsif (($Header eq 'Intp') && !$opt{a} &&
569		    ($Line =~ $SkipInterps)) {
570			# This object defines an interpretor we should skip.
571			$Interp = 0;
572		}
573	}
574
575	# Determine whether this ELF executable or shared object has a
576	# conforming mcs(1) comment section.  If the correct $(POST_PROCESS)
577	# macros are used, only a 3 or 4 line .comment section should exist
578	# containing one or two "@(#)SunOS" identifying comments (one comment
579	# for a non-debug build, and two for a debug build). The results of
580	# the following split should be three or four lines, the last empty
581	# line being discarded by the split.
582	if ($opt{m}) {
583		my(@Mcs, $Con, $Dev);
584
585		@Mcs = split(/\n/, `mcs -p $FullPath 2>&1`);
586
587		$Con = $Dev = $Val = 0;
588		foreach my $Line (@Mcs) {
589			$Val++;
590
591			if (($Val == 3) && ($Line !~ /^@\(#\)SunOS/)) {
592				$Con = 1;
593				last;
594			}
595			if (($Val == 4) && ($Line =~ /^@\(#\)SunOS/)) {
596				$Dev = 1;
597				next;
598			}
599			if (($Dev == 0) && ($Val == 4)) {
600				$Con = 1;
601				last;
602			}
603			if (($Dev == 1) && ($Val == 5)) {
604				$Con = 1;
605				last;
606			}
607		}
608		if ($opt{m} && ($Con == 1)) {
609			OutMsg($Ttl++, $RelPath,
610			    "\tnon-conforming mcs(1) comment\t<no \$(POST_PROCESS)?>");
611		}
612	}
613
614	# Applications should contain a non-executable stack definition.
615	if (($Dll == 0) && ($Stack == 0)) {
616		if (!$opt{a}) {
617			if ($File =~ $SkipNoExStkFiles) {
618				goto DYN;
619			}
620		}
621		OutMsg($Ttl++, $RelPath,
622		    "\tapplication requires non-executable stack\t<no -Mmapfile_noexstk?>");
623	}
624
625DYN:
626	# Having caught any static executables in the mcs(1) check and non-
627	# executable stack definition check, continue with dynamic objects
628	# from now on.
629	if ($Dyn eq 0) {
630		return;
631	}
632
633	# Only use ldd unless we've encountered an interpreter that should
634	# be skipped.
635	if (!$SkipLdd && $Interp) {
636		my $LDDFullPath = $FullPath;
637
638		if ($Secure) {
639			# The execution of a secure application over an nfs file
640			# system mounted nosuid will result in warning messages
641			# being sent to /var/adm/messages.  As this type of
642			# environment can occur with root builds, move the file
643			# being investigated to a safe place first.  In addition
644			# remove its secure permission so that it can be
645			# influenced by any alternative dependency mappings.
646
647			my($TmpPath) = "$Tmpdir/$File";
648
649			system('cp', $LDDFullPath, $TmpPath);
650			chmod 0777, $TmpPath;
651			$LDDFullPath = $TmpPath;
652		}
653
654		# Use ldd(1) to determine the objects relocatability and use.
655		# By default look for all unreferenced dependencies.  However,
656		# some objects have legitimate dependencies that they do not
657		# reference.
658		if ($LddNoU || ($RelPath =~ $UnusedPaths)) {
659			$Lddopt = "-ru";
660		} else {
661			$Lddopt = "-rU";
662		}
663		@Ldd = split(/\n/, `ldd $Lddopt $Env $LDDFullPath 2>&1`);
664		if ($Secure) {
665			unlink $LDDFullPath;
666		}
667	}
668
669	$Val = 0;
670	$Sym = 5;
671	$UnDep = 1;
672
673	foreach my $Line (@Ldd) {
674
675		if ($Val == 0) {
676			$Val = 1;
677			# Make sure ldd(1) worked.  One possible failure is that
678			# this is an old ldd(1) prior to -e addition (4390308).
679			if ($Line =~ /usage:/) {
680				$Line =~ s/$/\t<old ldd(1)?>/;
681				OutMsg($Ttl++, $RelPath, $Line);
682				last;
683			} elsif ($Line =~ /execution failed/) {
684				OutMsg($Ttl++, $RelPath, $Line);
685				last;
686			}
687
688			# It's possible this binary can't be executed, ie. we've
689			# found a sparc binary while running on an intel system,
690			# or a sparcv9 binary on a sparcv7/8 system.
691			if ($Line =~ /wrong class/) {
692				OutMsg($Ttl++, $RelPath,
693				    "\thas wrong class or data encoding");
694				next;
695			}
696
697			# Historically, ldd(1) likes executable objects to have
698			# their execute bit set.  Note that this test isn't
699			# applied unless the -a option is in effect, as any
700			# non-executable files are skipped by default to reduce
701			# the cost of running this script.
702			if ($Line =~ /not executable/) {
703				OutMsg($Ttl++, $RelPath,
704				    "\tis not executable");
705				next;
706			}
707		}
708
709		# Look for "file" or "versions" that aren't found.  Note that
710		# these lines will occur before we find any symbol referencing
711		# errors.
712		if (($Sym == 5) && ($Line =~ /not found\)/)) {
713			if ($Line =~ /file not found\)/) {
714				$Line =~ s/$/\t<no -zdefs?>/;
715			}
716			OutMsg($Ttl++, $RelPath, $Line);
717			next;
718		}
719		# Look for relocations whose symbols can't be found.  Note, we
720		# only print out the first 5 relocations for any file as this
721		# output can be excessive.
722		if ($Sym && ($Line =~ /symbol not found/)) {
723			# Determine if this file is allowed undefined
724			# references.
725			if ($Sym == 5) {
726				if (!$opt{a}) {
727					if ($File =~ $SkipUndefFiles) {
728						$Sym = 0;
729						next;
730					}
731				}
732			}
733			if ($Sym-- == 1) {
734				if (!$opt{o}) {
735					OutMsg($Ttl++, $RelPath,
736					    "\tcontinued ...");
737				}
738				next;
739			}
740			# Just print the symbol name.
741			$Line =~ s/$/\t<no -zdefs?>/;
742			OutMsg($Ttl++, $RelPath, $Line);
743			next;
744		}
745		# Look for any unused search paths.
746		if ($Line =~ /unused search path=/) {
747			# Note, skip this comparison for __GNUC builds, as the
748			# gnu compilers insert numerous unused search paths.
749			if ($Gnuc == 1) {
750				next;
751			}
752			if (!$opt{a}) {
753				if ($Line =~ $SkipUnusedSearchPath) {
754					next;
755				}
756			}
757			if ($Secure) {
758				$Line =~ s!$Tmpdir/!!;
759			}
760			$Line =~ s/^[ \t]*(.*)/\t$1\t<remove search path?>/;
761			OutMsg($Ttl++, $RelPath, $Line);
762			next;
763		}
764		# Look for unreferenced dependencies.  Note, if any unreferenced
765		# objects are ignored, then set $UnDep so as to suppress any
766		# associated unused-object messages.
767		if ($Line =~ /unreferenced object=/) {
768			if (!$opt{a}) {
769				if ($Line =~ $SkipUnrefObject) {
770					$UnDep = 0;
771					next;
772				}
773			}
774			if ($Secure) {
775				$Line =~ s!$Tmpdir/!!;
776			}
777			$Line =~ s/^[ \t]*(.*)/\t$1\t<remove lib or -zignore?>/;
778			OutMsg($Ttl++, $RelPath, $Line);
779			next;
780		}
781		# Look for any unused dependencies.
782		if ($UnDep && ($Line =~ /unused/)) {
783			if (!$opt{a}) {
784				if ($RelPath =~ $SkipUnusedDeps) {
785					next;
786				}
787				if ($Line =~ $SkipUnusedObject) {
788					next;
789				}
790			}
791			if ($Secure) {
792				$Line =~ s!$Tmpdir/!!;
793			}
794			$Line =~ s/^[ \t]*(.*)/\t$1\t<remove lib or -zignore?>/;
795			OutMsg($Ttl++, $RelPath, $Line);
796			next;
797		}
798	}
799
800	# Reuse the elfdump(1) data to investigate additional dynamic linking
801	# information.
802
803	$Sun = $Relsz = $Pltsz = $Dyn = $Stab = $SymSort = 0;
804	$Tex = $Strip = 1;
805	$HasDirectBinding = 0;
806	$HasVerdef = 0;
807
808	$Header = 'None';
809ELF:	foreach my $Line (@Elf) {
810		# We're only interested in the section headers and the dynamic
811		# section.
812		if ($Line =~ /^Section Header/) {
813			$Header = 'Shdr';
814
815			if (($Sun == 0) && ($Line =~ /\.SUNW_reloc/)) {
816				# This object has a combined relocation section.
817				$Sun = 1;
818
819			} elsif (($Stab == 0) && ($Line =~ /\.stab/)) {
820				# This object contain .stabs sections
821				$Stab = 1;
822			} elsif (($SymSort == 0) &&
823				 ($Line =~ /\.SUNW_dyn(sym)|(tls)sort/)) {
824				# This object contains a symbol sort section
825				$SymSort = 1;
826			}
827
828			if (($Strip == 1) && ($Line =~ /\.symtab/)) {
829				# This object contains a complete symbol table.
830				$Strip = 0;
831			}
832			next;
833
834		} elsif ($Line =~ /^Dynamic Section/) {
835			$Header = 'Dyn';
836			next;
837		} elsif ($Line =~ /^Syminfo Section/) {
838			$Header = 'Syminfo';
839			next;
840		} elsif ($Line =~ /^Version Definition Section/) {
841			$HasVerdef = 1;
842			next;
843		} elsif (($Header ne 'Dyn') && ($Header ne 'Syminfo')) {
844			next;
845		}
846
847		# Look into the Syminfo section.
848		# Does this object have at least one Directly Bound symbol?
849		if (($Header eq 'Syminfo')) {
850			my(@Symword);
851
852			if ($HasDirectBinding == 1) {
853				next;
854			}
855
856			@Symword = split(' ', $Line);
857
858			if (!defined($Symword[1])) {
859				next;
860			}
861			if ($Symword[1] =~ /B/) {
862				$HasDirectBinding = 1;
863			}
864			next;
865		}
866
867		# Does this object contain text relocations.
868		if ($Tex && ($Line =~ /TEXTREL/)) {
869			# Determine if this file is allowed text relocations.
870			if (!$opt{a}) {
871				if ($File =~ $SkipTextrelFiles) {
872					$Tex = 0;
873					next ELF;
874				}
875			}
876			OutMsg($Ttl++, $RelPath,
877			    "\tTEXTREL .dynamic tag\t\t\t<no -Kpic?>");
878			$Tex = 0;
879			next;
880		}
881
882		# Does this file have any relocation sections (there are a few
883		# psr libraries with no relocations at all, thus a .SUNW_reloc
884		# section won't exist either).
885		if (($Relsz == 0) && ($Line =~ / RELA?SZ/)) {
886			$Relsz = hex((split(' ', $Line))[2]);
887			next;
888		}
889
890		# Does this file have any plt relocations.  If the plt size is
891		# equivalent to the total relocation size then we don't have
892		# any relocations suitable for combining into a .SUNW_reloc
893		# section.
894		if (($Pltsz == 0) && ($Line =~ / PLTRELSZ/)) {
895			$Pltsz = hex((split(' ', $Line))[2]);
896			next;
897		}
898
899		# Does this object have any dependencies.
900		if ($Line =~ /NEEDED/) {
901			my($Need) = (split(' ', $Line))[3];
902
903			if ($Need =~ $OldDeps) {
904				# Catch any old (unnecessary) dependencies.
905				OutMsg($Ttl++, $RelPath,
906				    "\tNEEDED=$Need\t<dependency no longer necessary>");
907			} elsif ($opt{i}) {
908				# Under the -i (information) option print out
909				# any useful dynamic entries.
910				OutMsg($Ttl++, $RelPath, "\tNEEDED=$Need");
911			}
912			next;
913		}
914
915		# Is this object built with -B direct flag on?
916		if ($Line =~ / DIRECT /) {
917			$HasDirectBinding = 1;
918		}
919
920		# Does this object specify a runpath.
921		if ($opt{i} && ($Line =~ /RPATH/)) {
922			my($Rpath) = (split(' ', $Line))[3];
923			OutMsg($Ttl++, $RelPath, "\tRPATH=$Rpath");
924			next;
925		}
926	}
927
928	# A shared object, that contains non-plt relocations, should have a
929	# combined relocation section indicating it was built with -z combreloc.
930	if ($Dll && $Relsz && ($Relsz != $Pltsz) && ($Sun == 0)) {
931		OutMsg($Ttl++, $RelPath,
932		    "\tSUNW_reloc section missing\t\t<no -zcombreloc?>");
933	}
934
935	# No objects released to a customer should have any .stabs sections
936	# remaining, they should be stripped.
937	if ($opt{s} && $Stab) {
938		if (!$opt{a}) {
939			if ($File =~ $SkipStabFiles) {
940				goto DONESTAB;
941			}
942		}
943		OutMsg($Ttl++, $RelPath,
944		    "\tdebugging sections should be deleted\t<no strip -x?>");
945	}
946
947	# Identify an object that is not built with either -B direct or
948	# -z direct.
949	if (($RelPath =~ $SkipDirectBindDirs) ||
950	    ($File =~ $SkipDirectBindFiles)) {
951		goto DONESTAB;
952	}
953	if ($Relsz && ($HasDirectBinding == 0)) {
954		OutMsg($Ttl++, $RelPath,
955		    "\tobject has no direct bindings\t<no -B direct or -z direct?>");
956	}
957
958DONESTAB:
959
960	# All objects should have a full symbol table to provide complete
961	# debugging stack traces.
962	if ($Strip) {
963		OutMsg($Ttl++, $RelPath,
964		    "\tsymbol table should not be stripped\t<remove -s?>");
965	}
966
967	# If there are symbol sort sections in this object, report on
968	# any that have duplicate addresses.
969	ProcSymSort($FullPath, $RelPath, \$Ttl) if $SymSort;
970
971	# If -v was specified, and the object has a version definition
972	# section, generate output showing each public symbol and the
973	# version it belongs to.
974	ProcVerdef($FullPath, $RelPath, \$Ttl) if $HasVerdef && $opt{v};
975}
976
977
978## ProcSymSortOutMsg(RefTtl, RelPath, secname, addr, names...)
979#
980# Call OutMsg for a duplicate address error in a symbol sort
981# section
982#
983sub ProcSymSortOutMsg {
984	my($RefTtl, $RelPath, $secname, $addr, @names) = @_;
985
986	OutMsg($$RefTtl++, $RelPath,
987	    "$secname: duplicate $addr: ". join(', ', @names));
988}
989
990
991## ProcSymSort(FullPath, RelPath)
992#
993# Examine the symbol sort sections for the given object and report
994# on any duplicate addresses found.  Ideally, mapfile directives
995# should be used when building objects that have multiple symbols
996# with the same address so that only one of them appears in the sort
997# section. This saves space, reduces user confusion, and ensures that
998# libproc and debuggers always display public names instead of symbols
999# that are merely implementation details.
1000#
1001sub ProcSymSort {
1002
1003	my($FullPath, $RelPath, $RefTtl) = @_;
1004
1005	# If this object is exempt from checking, return quietly
1006	return if ($FullPath =~ $SkipSymSort);
1007
1008
1009	open(SORT, "elfdump -S $FullPath|") ||
1010	    die "$Prog: Unable to execute elfdump (symbol sort sections)\n";
1011
1012	my $line;
1013	my $last_addr;
1014	my @dups = ();
1015	my $secname;
1016	while ($line = <SORT>) {
1017		chomp $line;
1018
1019		next if ($line eq '');
1020
1021		# If this is a header line, pick up the section name
1022		if ($line =~ /^Symbol Sort Section:\s+([^\s]+)\s+/) {
1023			$secname = $1;
1024
1025			# Every new section is followed by a column header line
1026			$line = <SORT>;		# Toss header line
1027
1028			# Flush anything left from previous section
1029			ProcSymSortOutMsg($RefTtl, $RelPath, $secname,
1030			    $last_addr, @dups) if (scalar(@dups) > 1);
1031
1032			# Reset variables for new sort section
1033			$last_addr = '';
1034			@dups = ();
1035
1036			next;
1037		}
1038
1039		# Process symbol line
1040		my @fields = split /\s+/, $line;
1041		my $new_addr = $fields[2];
1042		my $new_type = $fields[8];
1043		my $new_name = $fields[9];
1044
1045		if ($new_type eq 'UNDEF') {
1046		    OutMsg($RefTtl++, $RelPath,
1047		        "$secname: unexpected UNDEF symbol " .
1048			"(link-editor error): $new_name");
1049		    next;
1050		}
1051
1052		if ($new_addr eq $last_addr) {
1053			push @dups, $new_name;
1054		} else {
1055			ProcSymSortOutMsg($RefTtl, $RelPath, $secname,
1056			    $last_addr, @dups) if (scalar(@dups) > 1);
1057			@dups = ( $new_name );
1058			$last_addr = $new_addr;
1059		}
1060	}
1061
1062	ProcSymSortOutMsg($RefTtl, $RelPath, $secname, $last_addr, @dups)
1063		if (scalar(@dups) > 1);
1064
1065	close SORT;
1066}
1067
1068
1069## ProcVerdef(FullPath, RelPath)
1070#
1071# Examine the version definition section for the given object and report
1072# each public symbol along with the version it belongs to.
1073#
1074sub ProcVerdef {
1075
1076	my($FullPath, $RelPath, $RefTtl) = @_;
1077	my $line;
1078	my $cur_ver = '';
1079	my $tab = $opt{o} ? '' : "\t";
1080
1081	# pvs -dov provides information about the versioning hierarchy
1082	# in the file. Lines are of the format:
1083	#	path - version[XXX];
1084	# where [XXX] indicates optional information, such as flags
1085	# or inherited versions.
1086	#
1087	# Private versions are allowed to change freely, so ignore them.
1088	open(PVS, "pvs -dov $FullPath|") ||
1089	    die "$Prog: Unable to execute pvs (version definition section)\n";
1090
1091	while ($line = <PVS>) {
1092		chomp $line;
1093
1094		if ($line =~ /^[^\s]+\s+-\s+([^;]+)/) {
1095			my $ver = $1;
1096
1097			next if $ver =~ /private/i;
1098			OutMsg($$RefTtl++, $RelPath, "${tab}VERDEF=$ver");
1099		}
1100	}
1101	close PVS;
1102
1103	# pvs -dos lists the symbols assigned to each version definition.
1104	# Lines are of the format:
1105	#	path - version: symbol;
1106	#	path - version: symbol (size);
1107	# where the (size) is added to data items, but not for functions.
1108	# We strip off the size, if present.
1109
1110	open(PVS, "pvs -dos $FullPath|") ||
1111	    die "$Prog: Unable to execute pvs (version definition section)\n";
1112	while ($line = <PVS>) {
1113		chomp $line;
1114		if ($line =~ /^[^\s]+\s+-\s+([^:]+):\s*([^\s;]+)/) {
1115		    my $ver = $1;
1116		    my $sym = $2;
1117
1118		    next if $ver =~ /private/i;
1119
1120		    if ($opt{o}) {
1121			OutMsg($$RefTtl++, $RelPath,
1122			       "VERSION=$ver, SYMBOL=$sym");
1123		    } else {
1124			if ($cur_ver ne $ver) {
1125			    OutMsg($$RefTtl++, $RelPath, "\tVERSION=$ver");
1126			    $cur_ver = $ver;
1127			}
1128			OutMsg($$RefTtl++, $RelPath, "\t\tSYMBOL=$sym");
1129		    }
1130		}
1131	}
1132
1133	close PVS;
1134}
1135
1136
1137sub ProcDir {
1138	my($FullDir, $RelDir) = @_;
1139	my($NewFull, $NewRel);
1140
1141	# Determine if this is a directory we don't care about.
1142	if (!$opt{a}) {
1143		if ($RelDir =~ $SkipDirs) {
1144			return;
1145		}
1146	}
1147
1148	# Open the directory and read each entry, omit files starting with "."
1149	if (opendir(DIR, $FullDir)) {
1150		foreach my $Entry (readdir(DIR)) {
1151			if ($Entry =~ /^\./) {
1152				next;
1153			}
1154			$NewFull = "$FullDir/$Entry";
1155
1156			# Ignore symlinks.
1157			if (-l $NewFull) {
1158				next;
1159			}
1160			if (!stat($NewFull)) {
1161				next;
1162			}
1163			$NewRel = "$RelDir/$Entry";
1164
1165			# Descend into and process any directories.
1166			if (-d _) {
1167				ProcDir($NewFull, $NewRel);
1168				next;
1169			}
1170
1171			# Typically dynamic objects are executable, so we can
1172			# reduce the overall cost of this script (a lot!) by
1173			# screening out non-executables here, rather than pass
1174			# them to file(1) later.  However, it has been known
1175			# for shared objects to be mistakenly left non-
1176			# executable, so with -a let all files through so that
1177			# this requirement can be verified (see ProcFile()).
1178			if (!$opt{a}) {
1179				if (! -x _) {
1180					next;
1181				}
1182			}
1183
1184			# Process any standard files.
1185			if (-f _) {
1186				my($Secure) = 0;
1187
1188				if (-u _ || -g _) {
1189					$Secure = 1;
1190				}
1191
1192				ProcFile($NewFull, $NewRel, $Entry, $Secure);
1193				next;
1194			}
1195
1196		}
1197		closedir(DIR);
1198	}
1199}
1200
1201# Create a crle(1) script for any 64-bit dependencies we locate.  A runtime
1202# configuration file will be generated to establish alternative dependency
1203# mappings for all these dependencies.
1204
1205sub Entercrle64 {
1206	my($FullDir, $RelDir, $Entry) = @_;
1207
1208	if (!$Crle64) {
1209		# Create and initialize the script if is doesn't already exit.
1210
1211		$Crle64 = "$Tmpdir/$Prog.crle64.$$";
1212		open(CRLE64, "> $Crle64") ||
1213			die "$Prog: open failed: $Crle64: $!";
1214
1215		print CRLE64 "#!/bin/sh\ncrle -64\\\n";
1216	}
1217	print CRLE64 "\t-o $FullDir -a $RelDir/$Entry \\\n";
1218}
1219
1220# Create a crle(1) script for any 32-bit dependencies we locate.  A runtime
1221# configuration file will be generated to establish alternative dependency
1222# mappings for all these dependencies.
1223
1224sub Entercrle32 {
1225	my($FullDir, $RelDir, $Entry) = @_;
1226
1227	if (!$Crle32) {
1228		# Create and initialize the script if is doesn't already exit.
1229
1230		$Crle32 = "$Tmpdir/$Prog.crle32.$$";
1231		open(CRLE32, "> $Crle32") ||
1232			die "$Prog: open failed: $Crle32: $!";
1233
1234		print CRLE32 "#!/bin/sh\ncrle \\\n";
1235	}
1236	print CRLE32 "\t-o $FullDir -a $RelDir/$Entry \\\n";
1237}
1238
1239# Having finished gathering dependencies, complete any crle(1) scripts and
1240# execute them to generate the associated runtime configuration files.  In
1241# addition establish the environment variable required to pass the configuration
1242# files to ldd(1).
1243
1244sub GenConf {
1245	if ($Crle64) {
1246		$Conf64 = "$Tmpdir/$Prog.conf64.$$";
1247		print CRLE64 "\t-c $Conf64\n";
1248
1249		chmod 0755, $Crle64;
1250		close CRLE64;
1251
1252		if (system($Crle64)) {
1253			undef $Conf64;
1254		}
1255	}
1256	if ($Crle32) {
1257		$Conf32 = "$Tmpdir/$Prog.conf32.$$";
1258		print CRLE32 "\t-c $Conf32\n";
1259
1260		chmod 0755, $Crle32;
1261		close CRLE32;
1262
1263		if (system($Crle32)) {
1264			undef $Conf32;
1265		}
1266	}
1267
1268	if ($Crle64 && $Conf64 && $Crle32 && $Conf32) {
1269		$Env = "-e LD_FLAGS=config_64=$Conf64,config_32=$Conf32";
1270	} elsif ($Crle64 && $Conf64) {
1271		$Env = "-e LD_FLAGS=config_64=$Conf64";
1272	} elsif ($Crle32 && $Conf32) {
1273		$Env = "-e LD_FLAGS=config_32=$Conf32";
1274	}
1275}
1276
1277# Recurse through a directory hierarchy looking for appropriate dependencies.
1278
1279sub GetDeps {
1280	my($FullDir, $RelDir) = @_;
1281	my($NewFull);
1282
1283	# Open the directory and read each entry, omit files starting with "."
1284	if (opendir(DIR, $FullDir)) {
1285		 foreach my $Entry (readdir(DIR)) {
1286			if ($Entry =~ /^\./) {
1287				next;
1288			}
1289			$NewFull = "$FullDir/$Entry";
1290
1291			# We need to follow links so that any dependencies
1292			# are expressed in all their available forms.
1293			# Bail on symlinks like 32 -> .
1294			if (-l $NewFull) {
1295				if (readlink($NewFull) =~ /^\.$/) {
1296					next;
1297				}
1298			}
1299			if (!stat($NewFull)) {
1300				next;
1301			}
1302
1303			if (!$opt{a}) {
1304				if ($NewFull =~ $SkipCrleConf) {
1305					next;
1306				}
1307			}
1308
1309			# If this is a directory descend into it.
1310			if (-d _) {
1311				my($NewRel);
1312
1313				if ($RelDir =~ /^\/$/) {
1314					$NewRel = "$RelDir$Entry";
1315				} else {
1316					$NewRel = "$RelDir/$Entry";
1317				}
1318
1319				GetDeps($NewFull, $NewRel);
1320				next;
1321			}
1322
1323			# If this is a regular file determine if its a
1324			# valid ELF dependency.
1325			if (-f _) {
1326				my($File);
1327
1328				# Typically shared object dependencies end with
1329				# ".so" or ".so.?", hence we can reduce the cost
1330				# of this script (a lot!) by screening out files
1331				# that don't follow this pattern.
1332				if (!$opt{a}) {
1333					if ($Entry !~ /\.so(?:\.\d+)*$/) {
1334						next;
1335					}
1336				}
1337
1338				$File = `file $NewFull`;
1339				if ($File !~ /dynamic lib/) {
1340					next;
1341				}
1342
1343				if ($File =~ /32-bit/) {
1344					Entercrle32($FullDir, $RelDir, $Entry);
1345				} elsif ($Ena64) {
1346					Entercrle64($FullDir, $RelDir, $Entry);
1347				}
1348				next;
1349			}
1350		}
1351		closedir(DIR);
1352	}
1353}
1354exit $Error
1355