79 lines
2.0 KiB
Perl
Executable File
79 lines
2.0 KiB
Perl
Executable File
#!/usr/bin/perl
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use Getopt::Long;
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use File::Temp qw'tempdir';
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use File::Basename;
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use File::Spec;
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use strict;
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sub dllname($;$);
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my $static;
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my $inverse;
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my @exclude;
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my ($ar, $as, $nm, $objcopy);
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GetOptions('exclude=s'=>\@exclude, 'static!'=>\$static, 'v!'=>\$inverse,
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'ar=s'=>\$ar, 'as=s'=>\$as,'nm=s'=>\$nm, 'objcopy=s'=>\$objcopy);
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$_ = File::Spec->rel2abs($_) for @ARGV;
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my $libdll = shift;
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my $lib = pop;
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(my $iname = basename $lib) =~ s/\.a$//o;
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$iname = '_' . $iname . '_dll_iname';
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open my $nm_fd, '-|', $nm, '-Apg', '--defined-only', @ARGV, $libdll or
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die "$0: execution of $nm for object files failed - $!\n";
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my %match_syms = ();
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my $symfiles = ();
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my $lastfn;
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my %extract = ();
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my $exclude_regex = @exclude ? join('|', @exclude) : '\\UnLiKeLy//';
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$exclude_regex = qr/$exclude_regex/;
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my $dllname;
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while (<$nm_fd>) {
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study;
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if (/ I _(.*)_dll_iname/o) {
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$dllname = $1;
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} else {
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my ($file, $member, $symbol) = m%^([^:]*):([^:]*(?=:))?.* T (.*)%o;
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next if !defined($symbol) || $symbol =~ $exclude_regex;
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if ($file ne $libdll) {
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$match_syms{$symbol} = 1;
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} elsif ($match_syms{$symbol} ? !$inverse : $inverse) {
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$extract{$member} = 1;
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}
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}
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}
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close $nm_fd;
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%extract or die "$0: couldn't find symbols for $lib\n";
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my $dir = tempdir(CLEANUP => 1);
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chdir $dir;
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# print join(' ', '+', $ar, 'x', sort keys %extract), "\n";
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my $res = system $ar, 'x', $libdll, sort keys %extract;
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die "$0: $ar extraction exited with non-zero status\n" if $res;
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unlink $lib;
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# Add a dummy .idata object for libtool so that it will think
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# this library is an import library.
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my $iname_o = 'd000000.o';
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$extract{$iname_o} = 1;
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open my $as_fd, '|-', $as, '-R', '-o', $iname_o, "-";
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print $as_fd <<EOF;
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.section .idata\$7
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.global $iname
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$iname: .asciz "$dllname.dll"
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EOF
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close $as_fd or exit 1;
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system $objcopy, '-j', '.idata$7', $iname_o;
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$res = system $ar, 'crus', $lib, sort keys %extract;
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unlink keys %extract;
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die "$0: ar creation of $lib exited with non-zero status\n" if $res;
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exit 0;
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