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#!/usr/bin/env perl
require 5.008;
BEGIN { $^W = 1; }
use strict;
use File::Basename;
my $whoami = basename($0);
usage() unless @ARGV == 4;
my ($file, $destdir, $objdump, $windows_wordsize) = @ARGV;
my $filedir = dirname($file);
my $sep = ($^O eq 'MSWin32' ? ';' : ':');
my @path = ($filedir, '.', split($sep, $ENV{'PATH'}));
foreach my $var (qw(LIB))
{
if (exists $ENV{$var})
{
push(@path, split($sep, $ENV{$var}));
}
}
my $redist_suffix = (($windows_wordsize eq '64') ? "x64" : "x86");
if (exists $ENV{'VCINSTALLDIR'})
{
my $redist = $ENV{'VCINSTALLDIR'} . "/Redist/$redist_suffix";
if (opendir(D, $redist))
{
my @entries = readdir(D);
closedir(D);
foreach my $e (@entries)
{
if ($e =~ m/\.CRT$/i)
{
unshift(@path, "$redist/$e");
}
}
}
}
if (exists $ENV{'UniversalCRTSdkDir'})
{
my $redist = $ENV{'UniversalCRTSdkDir'} . "/Redist/ucrt/DLLs/$redist_suffix";
unshift(@path, $redist);
}
my $format = undef;
my @to_find = get_dlls($file);
my %final = ();
my @notfound = ();
while (@to_find)
{
my $dll = shift(@to_find);
my $found = 0;
foreach my $dir (@path)
{
if ((-f "$dir/$dll") && is_format("$dir/$dll", $format))
{
if (! exists $final{$dll})
{
$final{$dll} = "$dir/$dll";
push(@to_find, get_dlls("$dir/$dll"));
}
$found = 1;
last;
}
}
if (! $found)
{
push(@notfound, $dll);
}
}
if (@notfound)
{
die "$whoami: can't find the following dlls: " .
join(', ', @notfound), "\n";
}
foreach my $dll (sort keys (%final))
{
my $f = $final{$dll};
$f =~ s,\\,/,g;
print "Copying $f to $destdir\n";
system("cp -p '$f' '$destdir'") == 0 or
die "$whoami: copy $f to $destdir failed\n";
}
sub get_dlls
{
my @result = ();
my $exe = shift;
open(O, "$objdump -p $exe|") or die "$whoami: can't run objdump\n";
while (<O>)
{
if (m/^\s+DLL Name:\s+(.+\.dll)/i)
{
my $dll = $1;
$dll =~ tr/A-Z/a-z/;
next if $dll =~ m/^(kernel32|user32|msvcrt|advapi32)\.dll$/;
push(@result, $dll);
}
elsif (m/^Magic.*\((PE.+?)\)/)
{
$format = $1;
}
}
close(O);
if (! defined $format)
{
die "$whoami: can't determine format of $exe\n";
}
@result;
}
sub is_format
{
my ($file, $format) = @_;
$file =~ s,\\,/,g;
# Special case: msvc*.dll seem to be able to behave both as 32-bit
# and 64-bit DLLs. Either that, or this logic is wrong for those
# DLLs and it doesn't matter because they're already installed on
# my test system (which doesn't have msvc installed on it).
if ($file =~ m,/msvc,i)
{
return 1;
}
my $result = 0;
my $file_format = `file "$file"`;
print "$file $format $file_format\n";
if ($? == 0)
{
if ($file_format =~ m/\Q${format}\E executable/)
{
$result = 1;
}
}
$result;
}
sub usage
{
die "Usage: $whoami {exe|dll} destdir\n";
}
|
