80 lines
2.0 KiB
Perl
Executable File
80 lines
2.0 KiB
Perl
Executable File
#!/usr/bin/perl -s
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#
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# This file is part of Cygwin.
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#
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# This software is a copyrighted work licensed under the terms of the
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# Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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# details.
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# This will do a crude test to see if the (NO)?SIGFE stuff is used properly
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# in cygwin.din. It is not perfect so do not use it to do a wholesale replacement.
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#
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# Input is the output of 'objdump --disassemble --demangle cygwin0.dll'.
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#
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use strict;
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use vars qw'$v';
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sub star($);
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my %funcs;
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my $func = '';
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$| = 1;
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while (<>) {
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/^610.....\s+<([^\(>]+).*?:/o and do {
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$func = $1;
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$funcs{$func} = {} unless defined $funcs{$func};
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next;
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};
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$func and /call\s+\S+\s+<([^\(>]+)/o and do {
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my $called = $1;
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$funcs{$func}{$called} = 1;
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if ($called =~ /^[A-Z].*@/o || ($called = $funcs{$called}{-uses_kernel})) {
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$funcs{$func}{-uses_kernel} ||= $called;
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my @a = ($func);
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while (my $f = shift @a) {
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for my $k (keys %funcs) {
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if ($funcs{$k}{$f} && !$funcs{$k}{-uses_kernel}) {
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$funcs{$k}{-uses_kernel} = $called;
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push(@a, $k);
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}
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}
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}
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}
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next;
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};
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}
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if ($v) {
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for my $k (sort keys %funcs) {
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print star($funcs{$k}), $k, $funcs{$k}{-uses_kernel} ? " ($funcs{$k}{-uses_kernel})\n" : "\n";
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my $indent = ' ';
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for (sort keys %{$funcs{$k}}) {
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next if /^-/o;
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print $indent, $_, star($funcs{$k});
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$indent = ' ';
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}
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print "\n";
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}
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}
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open(DIN, '<', 'cygwin.din') or die "$0: couldn't open cygwin.din - $!\n";
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while (<DIN>) {
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my $line = $_;
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/^LIBRARY\s+/o and next;
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/^\s*$/ and next;
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/^EXPORTS/o and next;
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/ DATA$/o and next;
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my $sigfe = (/\s+((?:NO)?SIGFE)\s*$/o)[0] !~ /^NO/o;
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s/\s+((?:NO)?SIGFE)\s*$//o;
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my $func = (/\s+=\s+(\S+)/o)[0] || (/^\s*(\S+)/o)[0];
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if (!defined($funcs{$func})) {
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warn "hmm. couldn't find $func in disassembled output\n";
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} elsif (!!$funcs{$func}{-uses_kernel} != $sigfe) {
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warn "mismatch detected: $line";
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}
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}
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sub star($) {
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return $_[0]->{-uses_kernel} ? '*' : '';
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}
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