701 lines
14 KiB
Perl
Executable File
701 lines
14 KiB
Perl
Executable File
#!/usr/bin/perl
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# $OpenBSD: check-lib-depends,v 1.12 2007/06/16 20:15:33 espie Exp $
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# Copyright (c) 2004 Marc Espie <espie@openbsd.org>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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# check all packages in the current directory, and report library issues
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use strict;
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use warnings;
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use File::Find;
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use File::Spec;
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use File::Path;
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use File::Basename;
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use OpenBSD::PackageLocator;
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use OpenBSD::PackageInfo;
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use OpenBSD::PackingList;
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use OpenBSD::SharedLibs;
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use File::Temp;
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use Getopt::Std;
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our ($opt_o, $opt_d, $opt_f, $opt_F, $opt_B, $opt_s, $opt_O);
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my $errors = 0;
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# FileSource: where we get the files to analyze
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package FileSource;
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# FakeFileSource : file system
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package FakeFileSource;
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our @ISA=(qw(FileSource));
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sub new
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{
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my ($class, $location) = @_;
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bless {location => $location }, $class
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}
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sub retrieve
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{
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my ($self, $item) = @_;
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return $self->{location}.$item->fullname;
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}
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sub skip
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{
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}
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sub clean
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{
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}
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# RealFileSource: package archive
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package RealFileSource;
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our @ISA=(qw(FileSource));
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sub new
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{
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my ($class, $handle, $location) = @_;
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bless {handle => $handle, location => $location }, $class;
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}
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sub prepare_to_extract
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{
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my ($self, $item) = @_;
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require OpenBSD::ArcCheck;
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my $o = $self->{handle}->next;
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$o->{cwd} = $item->cwd;
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if (!$o->check_name($item)) {
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die "Error checking name for $o->{name} vs. $item->{name}\n";
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}
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$o->{name} = $item->fullname;
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$o->{destdir} = $self->{location};
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return $o;
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}
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sub extracted_name
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{
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my ($self, $item) = @_;
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return $self->{location}.$item->fullname;
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}
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sub retrieve
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{
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my ($self, $item) = @_;
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my $o = $self->prepare_to_extract($item);
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$o->create;
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return $self->extracted_name($item);
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}
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sub skip
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{
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my ($self, $item) = @_;
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my $o = $self->prepare_to_extract($item);
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$self->{handle}->skip;
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}
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sub clean
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{
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my ($self, $item) = @_;
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unlink($self->extracted_name($item));
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}
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# Recorder: how we keep track of which binary uses which library
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package Recorder;
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sub new
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{
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my $class = shift;
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return bless {}, $class;
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}
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sub reduce_libname
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{
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my ($self, $lib) = @_;
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$lib =~ s/^(.*\/)?lib(.*)\.so\.(\d+)\.\d+$/$2.$3/;
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return $lib;
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}
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sub libs
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{
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my $self = shift;
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return keys %$self;
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}
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sub record_rpath
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{
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}
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# SimpleRecorder: remember one single binary for each library
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package SimpleRecorder;
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our @ISA=(qw(Recorder));
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sub record
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{
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my ($self, $lib, $filename) = @_;
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$self->{$self->reduce_libname($lib)} = $filename;
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}
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sub binary
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{
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my ($self, $lib) = @_;
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return $self->{$lib};
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}
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# AllRecorder: remember all binaries for each library
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package AllRecorder;
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our @ISA=(qw(Recorder));
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sub record
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{
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my ($self, $lib, $filename) = @_;
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push(@{$self->{$self->reduce_libname($lib)}}, $filename);
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}
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sub binaries
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{
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my ($self, $lib) = @_;
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return @{$self->{$lib}};
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}
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sub binary
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{
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my ($self, $lib) = @_;
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return $self->{$lib}->[0];
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}
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sub dump
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{
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my ($self, $fh) = @_;
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for my $lib (sort $self->libs) {
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print $fh "$lib:\t\n";
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for my $binary (sort $self->binaries($lib)) {
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print $fh "\t$binary\n";
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}
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}
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}
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package DumpRecorder;
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our @ISA=(qw(Recorder));
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sub record
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{
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my ($self, $lib, $filename) = @_;
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push(@{$self->{$filename}->{libs}}, $lib);
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}
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sub record_rpath
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{
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my ($self, $path, $filename) = @_;
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push(@{$self->{$filename}->{rpath}}, $path);
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}
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sub dump
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{
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my ($self, $fh) = @_;
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while (my ($binary, $v) = each %$self) {
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print $fh $binary;
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if (defined $v->{rpath}) {
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print $fh "(", join(':', @{$v->{rpath}}), ")";
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}
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print $fh ": ", join(',', @{$v->{libs}}), "\n";
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}
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}
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sub retrieve
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{
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my ($self, $filename) = @_;
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open(my $fh, '<', $filename) or die "Can't read $filename: $!";
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local $_;
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while (<$fh>) {
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chomp;
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if (m/^(.*?)\:\s(.*)$/) {
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my ($binary, $libs) = ($1, $2);
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if ($binary =~ m/^(.*)\(.*\)$/) {
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$binary = $1;
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}
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my @libs = split(/,/, $libs);
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$self->{$binary}= \@libs;
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} else {
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print "Can't parse $_\n";
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}
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}
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close $fh;
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}
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# Issue: intermediate objects that record problems with libraries
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package Issue;
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sub new
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{
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my ($class, $lib, $binary, @packages) = @_;
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bless { lib => $lib, binary => $binary, packages => \@packages },
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$class;
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}
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sub stringize
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{
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my $self = shift;
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my $string = $self->{lib};
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if (@{$self->{packages}} > 0) {
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$string.=" from ".join(',', @{$self->{packages}});
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}
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return $string." ($self->{binary})";
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}
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sub do_record_wantlib
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{
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my ($self, $h) = @_;
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my $want = $self->{lib};
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$want =~ s/\.\d+$//;
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$h->{$want} = 1;
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}
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sub record_wantlib
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{
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}
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sub print_error_not_reachable
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{
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return 0;
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}
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package Issue::system_lib;
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our @ISA=(qw(Issue));
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sub print
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{
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my $self = shift;
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print "WANTLIB: ", $self->stringize, " (system lib)\n";
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}
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sub record_wantlib
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{
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&Issue::do_record_wantlib;
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}
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package Issue::direct_dependency;
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our @ISA=(qw(Issue));
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sub print
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{
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my $self = shift;
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print "LIB_DEPENDS: ", $self->stringize, "\n";
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}
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package Issue::indirect_dependency;
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our @ISA=(qw(Issue));
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sub print
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{
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my $self = shift;
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print "WANTLIB: ", $self->stringize, "\n";
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}
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sub record_wantlib
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{
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&Issue::do_record_wantlib;
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}
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package Issue::not_reachable;
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our @ISA=(qw(Issue));
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sub print
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{
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my $self = shift;
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print "Missing lib: ", $self->stringize, " (NOT REACHABLE)\n";
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}
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sub print_error_not_reachable
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{
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my $self = shift;
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print "Bogus WANTLIB: ", $self->stringize, " (NOT REACHABLE)\n";
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return 1;
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}
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package MyFile;
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our @ISA=(qw(OpenBSD::PackingElement::FileBase));
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sub fullname
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{
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my $self = shift;
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return $self->{name};
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}
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package OpenBSD::PackingElement;
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sub record_needed_libs
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{
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}
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sub find_libs
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{
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}
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sub register_libs
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{
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}
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sub depwalk
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{
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}
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package OpenBSD::PackingElement::Wantlib;
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sub register_libs
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{
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my ($item, $t) = @_;
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my $name = $item->{name};
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$name =~ s/^(.*\/)?(.*)\.(\d+)\.\d+$/$2.$3/;
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$t->{$name} = 1;
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}
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package OpenBSD::PackingElement::Lib;
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sub register_libs
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{
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my ($item, $t) = @_;
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if ($item->fullname =~ m/^(.*\/)?lib(.*)\.so\.(\d+)\.\d+$/) {
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$t->{"$2.$3"} = 2;
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}
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}
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package OpenBSD::PackingElement::FileBase;
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use File::Basename;
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sub shellquote
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{
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local $_ = shift;
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s/[*?;() #\\'"`\${}]/\\$&/g;
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return $_;
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}
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sub find_libs
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{
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my ($item, $dest, $special) = @_;
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my $fullname = $item->fullname;
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if (defined $special->{$fullname}) {
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for my $lib (@{$special->{$fullname}}) {
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$dest->record($lib, $fullname);
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}
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}
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}
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sub record_needed_libs
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{
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my ($item, $dest, $source) = @_;
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my $fullname = File::Spec->canonpath($item->fullname);
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my $linux_bin = 0;
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my $freebsd_bin = 0;
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if ($fullname =~ m,^/usr/local/emul/redhat/,) {
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$linux_bin = 1;
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}
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if ($fullname =~ m,^/usr/local/emul/freebsd/,) {
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$freebsd_bin = 1;
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}
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if ($linux_bin || $freebsd_bin || $item->{symlink} || $item->{link}) {
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$source->skip($item);
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return;
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}
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my $n = shellquote($source->retrieve($item));
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my $cmd;
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if ($main::opt_o) {
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open($cmd, "ldd -f 'NEEDED lib%o.so.%m.%n\\n'|");
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} else {
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open($cmd, "objdump -p $n 2>/dev/null|");
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}
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my @l;
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while(my $line = <$cmd>) {
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if ($line =~ m/^\s+NEEDED\s+(.*?)\s*$/) {
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my $lib = $1;
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push(@l, $lib);
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# detect linux binaries
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if ($lib eq 'libc.so.6') {
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$linux_bin = 1;
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}
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} elsif ($line =~ m/^\s+RPATH\s+(.*)\s*$/) {
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my $p = {};
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for my $path (split /\:/, $1) {
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next if $path eq '/usr/local/lib';
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next if $path eq '/usr/X11R6/lib';
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next if $path eq '/usr/lib';
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$p->{$path} = 1;
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}
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for my $path (keys %$p) {
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$dest->record_rpath($path, $fullname);
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}
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}
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}
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close($cmd);
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# okay, we are not OpenBSD, we don't have sensible names
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unless ($linux_bin or $freebsd_bin) {
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for my $lib (@l) {
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# don't look for modules
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next if $lib =~ m/\.so$/;
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$dest->record($lib, $fullname);
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}
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}
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$source->clean($item);
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}
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package OpenBSD::PackingElement::Dependency;
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sub depwalk
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{
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my ($self, $h) = @_;
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$h->{$self->{def}} = $self->{pkgpath};
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}
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package main;
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getopts('od:f:B:F:s:O:');
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my $dependencies = {};
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sub register_dependencies
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{
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my $plist = shift;
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my $pkgname = $plist->pkgname;
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my $h = {};
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$dependencies->{$pkgname} = $h;
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$plist->depwalk($h);
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}
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sub get_plist
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{
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my ($pkgname, $pkgpath) = @_;
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# try physical package
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if (defined $opt_d) {
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my $location = "$opt_d/$pkgname.tgz";
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my $true_package = OpenBSD::PackageLocator->find($location);
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if ($true_package) {
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my $dir = $true_package->info;
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if (-d $dir) {
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my $plist = OpenBSD::PackingList->fromfile($dir.CONTENTS);
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$true_package->close;
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rmtree($dir);
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return $plist;
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}
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}
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}
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# ask the ports tree
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print "Asking ports for dependency $pkgname($pkgpath)\n";
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my $portsdir = $ENV{PORTSDIR} || "/usr/ports";
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my $make = $ENV{MAKE} || "make";
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open my $fh, "cd $portsdir && env -i SUBDIR=$pkgpath ECHO_MSG=: make print-plist-with-depends |" or return undef;
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my $plist = OpenBSD::PackingList->read($fh);
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close $fh;
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return $plist;
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}
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sub handle_dependency
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{
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my ($pkgname, $pkgpath) = @_;
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my $plist = get_plist($pkgname, $pkgpath);
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if (!defined $plist || !defined $plist->pkgname) {
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print "Error: can't solve dependency for $pkgname/$pkgpath\n";
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return;
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}
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if ($plist->pkgname ne $pkgname) {
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delete $dependencies->{$pkgname};
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for my $p (keys %$dependencies) {
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if ($dependencies->{$p}->{$pkgname}) {
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$dependencies->{$p}->{$plist->pkgname} =
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$dependencies->{$p}->{$pkgname};
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delete $dependencies->{$p}->{$pkgname};
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}
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}
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}
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register_dependencies($plist);
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OpenBSD::SharedLibs::add_libs_from_plist($plist);
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return $plist->pkgname;
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}
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sub report_lib_issue
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{
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my ($plist, $lib, $binary) = @_;
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OpenBSD::SharedLibs::add_libs_from_system('/');
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my $libspec = "$lib.0";
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my $want = $lib;
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$want =~ s/\.\d+$//;
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for my $dir (qw(/usr /usr/X11R6)) {
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my @r = OpenBSD::SharedLibs::lookup_libspec($dir, $libspec);
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if (grep { $_ eq 'system' } @r) {
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return Issue::system_lib->new($lib, $binary);
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}
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}
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while (my ($p, $pkgpath) = each %{$dependencies->{$plist->pkgname}}) {
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next if defined $dependencies->{$p};
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handle_dependency($p, $pkgpath);
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}
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my @r = OpenBSD::SharedLibs::lookup_libspec('/usr/local', $libspec);
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if (@r > 0) {
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for my $p (@r) {
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if (defined $dependencies->{$plist->pkgname}->{$p}) {
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return Issue::direct_dependency->new($lib, $binary, $p);
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}
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}
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}
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# okay, let's walk for WANTLIB
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my @todo = %{$dependencies->{$plist->pkgname}};
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my $done = {};
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while (@todo >= 2) {
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my $path = pop @todo;
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my $dep = pop @todo;
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next if $done->{$dep};
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$done->{$dep} = 1;
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$dep = handle_dependency($dep, $path)
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unless defined $dependencies->{$dep};
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next if !defined $dep;
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$done->{$dep} = 1;
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push(@todo, %{$dependencies->{$dep}});
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}
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@r = OpenBSD::SharedLibs::lookup_libspec('/usr/local', $libspec);
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for my $p (@r) {
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if (defined $done->{$p}) {
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return Issue::indirect_dependency->new($lib, $binary, $p);
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}
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}
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return Issue::not_reachable->new($lib,, $binary, @r);
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}
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sub print_list
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{
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my ($head, $h) = @_;
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my $line = "";
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for my $k (sort keys %$h) {
|
|
if (length $line > 50) {
|
|
print $head, $line, "\n";
|
|
$line = "";
|
|
}
|
|
$line .= ' '.$k;
|
|
}
|
|
if ($line ne '') {
|
|
print $head, $line, "\n";
|
|
}
|
|
}
|
|
|
|
sub analyze
|
|
{
|
|
my ($plist, $source, @l) = @_;
|
|
|
|
my $pkgname = $plist->pkgname;
|
|
my $needed_libs = $opt_f ? AllRecorder->new : SimpleRecorder->new;
|
|
my $has_libs = {};
|
|
if ($opt_s) {
|
|
my $special = DumpRecorder->new;
|
|
$special->retrieve($opt_s);
|
|
$plist->find_libs($needed_libs, $special);
|
|
} else {
|
|
$plist->record_needed_libs($needed_libs, $source, @l);
|
|
}
|
|
$plist->register_libs($has_libs);
|
|
|
|
if (!defined $dependencies->{$pkgname}) {
|
|
register_dependencies($plist);
|
|
OpenBSD::SharedLibs::add_libs_from_plist($plist);
|
|
}
|
|
my $r = { wantlib => {}, libdepends => {}, wantlib2 => {} };
|
|
for my $lib (sort $needed_libs->libs) {
|
|
my $fullname = $needed_libs->binary($lib);
|
|
if (!defined $has_libs->{$lib}) {
|
|
my $issue = report_lib_issue($plist, $lib, $fullname);
|
|
$issue->print;
|
|
$errors++;
|
|
$issue->record_wantlib($r->{wantlib});
|
|
} elsif ($has_libs->{$lib} == 1) {
|
|
my $issue = report_lib_issue($plist, $lib, $fullname);
|
|
if ($issue->print_error_not_reachable) {
|
|
$errors++;
|
|
}
|
|
}
|
|
$has_libs->{$lib} = 2;
|
|
}
|
|
for my $k (sort keys %$has_libs) {
|
|
my $v = $has_libs->{$k};
|
|
next if $v == 2;
|
|
print "Extra: $k\n";
|
|
}
|
|
print_list("\tWANTLIB +=", $r->{wantlib});
|
|
if ($opt_f) {
|
|
$needed_libs->dump(\*STDOUT);
|
|
}
|
|
}
|
|
|
|
sub do_pkg
|
|
{
|
|
my $pkgname = shift;
|
|
|
|
print "\n$pkgname:\n";
|
|
my $true_package = OpenBSD::PackageLocator->find($pkgname);
|
|
return 0 unless $true_package;
|
|
my $dir = $true_package->info;
|
|
# twice read
|
|
return 0 unless -d $dir;
|
|
my $plist = OpenBSD::PackingList->fromfile($dir.CONTENTS);
|
|
if ($opt_B) {
|
|
analyze($plist, FakeFileSource->new($opt_B));
|
|
} else {
|
|
my $temp = File::Temp::mkdtemp("/tmp/zoinx.XXXXXXXXXX");
|
|
analyze($plist, RealFileSource->new($true_package, $temp));
|
|
rmtree($temp);
|
|
}
|
|
$true_package->close;
|
|
$true_package->wipe_info;
|
|
$plist->forget;
|
|
return 1;
|
|
}
|
|
|
|
sub do_plist
|
|
{
|
|
my $plist = OpenBSD::PackingList->read(\*STDIN);
|
|
if (!defined $plist->{name}) {
|
|
print STDERR "Error reading plist\n";
|
|
$errors++;
|
|
} else {
|
|
my $pkgname = $plist->pkgname;
|
|
print "\n$pkgname:\n";
|
|
analyze($plist, FakeFileSource->new($opt_B));
|
|
}
|
|
}
|
|
|
|
if ($opt_F) {
|
|
my $recorder = DumpRecorder->new;
|
|
my $cwd = $opt_F;
|
|
my $source = FakeFileSource->new($opt_F);
|
|
File::Find::find({
|
|
wanted => sub {
|
|
return unless -f $_;
|
|
my $name = $_;
|
|
$name =~ s/^\Q$opt_F\E//;
|
|
# XXX hack FileBase object;
|
|
my $i = bless {name => $name}, "MyFile";
|
|
$i->record_needed_libs($recorder, $source);
|
|
},
|
|
no_chdir => 1 }, $opt_F);
|
|
if ($opt_O) {
|
|
open my $fh, '>', $opt_O or die "Can't write to $opt_O: $!";
|
|
$recorder->dump($fh);
|
|
close $fh;
|
|
} else {
|
|
$recorder->dump(\*STDOUT);
|
|
}
|
|
exit(0);
|
|
}
|
|
if (@ARGV == 0 && defined $opt_B) {
|
|
do_plist();
|
|
} else {
|
|
for my $pkgname (@ARGV) {
|
|
do_pkg($pkgname);
|
|
}
|
|
}
|
|
|
|
exit($errors ? 1 : 0);
|