######################################################################## # # Copyright (c) 2010, Secure Endpoints Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # # - Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # # - Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in # the documentation and/or other materials provided with the # distribution. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. # my $show_module_name = 1; my $use_indent = 1; my $strip_leading_underscore = 0; my $always_export = 0; my $module_name = ""; my $local_prefix = "SHIM_"; my %forward_exports = (); my %local_exports = (); sub build_forwarder_target_list($) { $fn = shift; print STDERR "Processing defs from file [$fn]\n"; open(SP, '-|', "dumpbin /exports \"".$fn."\"") or die "Can't open pipe for $fn"; LINE: while () { # 112 6F 00071CDC krb5_encrypt_size /^ +([[:digit:]]+)\s+[[:xdigit:]]+\s[[:xdigit:]]{8,}\s+(\S+)(?:| = (\S*))$/ && do { my ($ordinal, $symbol, $in) = ($1, $2, $3); if ($in eq "") { $in = $symbol }; $forward_exports{$symbol} = $in; }; } close SP; } # Dump all symbols for the given dll file that are defined and have # external scope. sub build_def_file($) { $fn = shift; print STDERR "Opening dump of DLL [$fn]\n"; open(SP, '-|', "dumpbin /exports \"".$fn."\"") or die "Can't open pipe for $fn"; LINE: while () { # 112 6F 00071CDC krb5_encrypt_size /^ +([[:digit:]]+)\s+[[:xdigit:]]+\s[[:xdigit:]]{8,}\s+(\S+)(?:| = (\S*))$/ && do { my ($ordinal, $symbol, $in) = ($1, $2, $3); if ($strip_leading_underscore && $symbol =~ /_(.*)/) { $symbol = $1; } if (exists $local_exports{$symbol}) { print "\t".$symbol; print " = ".$local_exports{$symbol}; if ($in ne $local_exports{$symbol} and $in ne "") { print STDERR "Incorrect calling convention for local $symbol\n"; print STDERR " ".$in." != ".$local_exports{$symbol}."\n"; } print "\t@".$ordinal."\n"; } elsif (exists $local_exports{$local_prefix.$symbol}) { print "\t".$symbol; print " = ".$local_exports{$local_prefix.$symbol}; print "\t@".$ordinal."\n"; } elsif (exists $forward_exports{$symbol}) { print "\t".$symbol; print " = ".$module_name; if ($in ne $forward_exports{$symbol} and $in ne "") { print STDERR "Incorrect calling convention for $symbol\n"; print STDERR " ".$in." != ".$forward_exports{$symbol}."\n"; } my $texp = $forward_exports{$symbol}; if ($texp =~ /^_([^@]+)$/) { $texp = $1; } print $texp."\t@".$ordinal."\n"; } elsif ($always_export) { print "\t".$symbol." = ".$local_prefix.$symbol; print "\t@".$ordinal."\n"; } else { print STDERR "Symbol not found: $symbol\n"; } }; } close SP; } sub build_local_exports_list($) { $fn = shift; print STDERR "Opening dump of object [$fn]\n"; open(SP, '-|', "dumpbin /symbols \"".$fn."\"") or die "Can't open pipe for $fn"; LINE: while () { # 009 00000010 SECT3 notype () External | _remove_error_table@4 m/^[[:xdigit:]]{3,}\s[[:xdigit:]]{8,}\s(\w+)\s+\w*\s+(?:\(\)| )\s+(\w+)\s+\|\s+(\S+)$/ && do { my ($section, $visibility, $symbol) = ($1, $2, $3); if ($section ne "UNDEF" && $visibility eq "External") { my $exp_name = $symbol; if ($symbol =~ m/^_(\w+)(?:@.*|)$/) { $exp_name = $1; } if ($symbol =~ m/^_([^@]+)$/) { $symbol = $1; } $local_exports{$exp_name} = $symbol; } }; } close SP; } sub process_file($) { $fn = shift; if ($fn =~ m/\.dll$/i) { build_def_file($fn); } elsif ($fn =~ m/\.obj$/i) { build_local_exports_list($fn); } else { die "File type not recognized for $fn."; } } sub use_response_file($) { $fn = shift; open (RF, '<', $fn) or die "Can't open response file $fn"; while () { /^(\S+)$/ && do { process_file($1); } } close RF; } print "; This is a generated file. Do not modify directly.\n"; print "EXPORTS\n"; for (@ARGV) { ARG: { /^-m(.*)$/ && do { $module_name = $1."."; last ARG; }; /^-l(.*)$/ && do { $local_prefix = $1."_"; last ARG; }; /^-a$/ && do { $always_export = 1; last ARG; }; /^-e(.*)$/ && do { build_forwarder_target_list($1); last ARG; }; /^@(.*)$/ && do { use_response_file($1); last ARG; }; process_file($_); } }