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1 # |
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2 # Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 # All rights reserved. |
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4 # This component and the accompanying materials are made available |
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5 # under the terms of the License "Eclipse Public License v1.0" |
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6 # which accompanies this distribution, and is available |
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7 # at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 # |
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9 # Initial Contributors: |
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10 # Nokia Corporation - initial contribution. |
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11 # |
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12 # Contributors: |
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13 # |
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14 # Description: |
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15 # |
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16 |
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17 use Getopt::Long; |
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18 use strict; |
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19 |
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20 my $outputFileName = "default.inf"; |
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21 my $discard_noncallable_exports = 0; |
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22 my @inputFiles; |
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23 my @exports = (); |
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24 my %symsSeen = (); |
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25 |
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26 # |
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27 |
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28 &args; |
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29 &main; |
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30 |
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31 |
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32 sub args () |
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33 { |
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34 my %opts = (); |
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35 my $result = GetOptions(\%opts, "output:s", "discard_noncallable_exports"); |
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36 $outputFileName = $opts{'output'} if $opts{'output'} ; |
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37 $discard_noncallable_exports = 1 if $opts{'discard_noncallable_exports'}; |
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38 @inputFiles = @ARGV; |
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39 } |
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40 |
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41 sub main () |
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42 { |
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43 |
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44 foreach my $file (@inputFiles){ |
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45 ReadFromElf($file); |
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46 } |
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47 open( INFFILE, ">$outputFileName") or |
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48 die "Error: can't open $outputFileName\n"; |
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49 foreach my $export (sort {$a cmp $b } @exports) { |
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50 print INFFILE $export; |
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51 } |
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52 close INFFILE; |
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53 } |
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54 |
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55 sub ReadFromElf ($) |
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56 { |
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57 my ($filename) = @_; |
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58 my $line; |
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59 %symsSeen = (); |
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60 open(FROMELF, "getexports $filename|") |
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61 or die "Error: can't open $filename\n"; |
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62 |
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63 while ($_ = <FROMELF> ) |
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64 { |
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65 if ($_ =~ /^\s*(\S+)\s+((DATA)\s+(\d+))?\s*$/) { |
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66 my $sym = $1; |
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67 my $data = ""; |
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68 unless ($symsSeen{$sym}) { |
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69 $symsSeen{$sym} = $sym; |
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70 |
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71 if($2){ |
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72 # Indicate if this is a data symbol along with its size. |
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73 if($4){ |
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74 $data = " DATA $4"; |
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75 } |
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76 } |
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77 |
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78 if ($sym =~ /^_ZTV/ && !$discard_noncallable_exports) { # allow vtables thru |
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79 push @exports, " _$sym (#<VT>#)\n"; |
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80 } elsif ($sym =~ /^_ZTI/ && !$discard_noncallable_exports) { # allow type info thru: comment out if we don't want it |
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81 push @exports, " _$sym (#<TI>#)\n"; |
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82 } elsif ($sym =~ /^_ZThn\d/) { # allow thunk thru |
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83 push @exports, " _$sym (#<thunk>#)\n"; |
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84 } elsif ($sym =~ /^_ZT/) { # punt all other type stuff: shouldn't be exported anyway |
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85 next; |
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86 } elsif (C9Ctor($sym)) { #work around non-export of constructors |
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87 PushCtors($sym, $filename); |
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88 } elsif (D9Dtor($sym)) { #work around non-export of constructors |
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89 PushDtors($sym, $filename); |
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90 } else { |
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91 push @exports, " _$sym$data\n"; |
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92 } |
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93 } |
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94 } |
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95 } |
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96 close FROMELF; |
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97 } |
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98 |
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99 sub PushSym($$) |
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100 { |
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101 my ($s, $f) = @_; |
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102 unless ($symsSeen{$s}) { |
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103 $symsSeen{$s} = $s; |
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104 push @exports, " _$s\n"; |
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105 } |
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106 } |
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107 |
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108 sub simpleC9Ctor($) |
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109 { |
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110 my ($sym) = @_; |
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111 if ($sym =~ /_ZN(\d+)(.+)C9E.*$/) { |
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112 # Really check it |
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113 return 1 if ($1 == length($2)); |
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114 } |
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115 return 0; |
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116 } |
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117 |
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118 sub simpleD9Ctor($) |
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119 { |
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120 my ($sym) = @_; |
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121 if ($sym =~ /_ZN(\d+)(.+)D9E.*$/) { |
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122 # Really check it |
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123 return 1 if ($1 == length($2)); |
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124 } |
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125 return 0; |
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126 } |
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127 |
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128 sub C9Ctor($) |
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129 { |
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130 my ($sym) = @_; |
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131 return 1 if simpleC9Ctor($sym); |
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132 if ($sym =~ /_ZN(\d+)(.+)C9E.*$/) { |
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133 my $l = $1; |
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134 my $s = $2; |
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135 my $t_params = substr $s, $l; |
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136 return 1 if ($t_params =~ /^I.*I$/); # not totally convincing check for templated ctor |
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137 } |
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138 return 0; |
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139 } |
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140 |
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141 sub PushCtors($$) |
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142 { |
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143 my ($sym, $filename) = @_; |
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144 return PushSimpleCtors($sym, $filename) if (simpleC9Ctor($sym)); |
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145 |
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146 my ($sym, $filename) = @_; |
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147 $sym =~ /(_ZN\d+.+IC)9E.*$/o; |
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148 my $s = $1; |
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149 my $i = length $s; |
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150 my $e = substr $sym, $i + 1; |
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151 my $C1 = "$s"."1"."$e"; |
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152 my $C2 = "$s"."2"."$e"; |
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153 push @exports, " _$sym\n"; |
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154 PushSym($C1, $filename); |
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155 PushSym($C2, $filename); |
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156 |
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157 } |
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158 |
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159 sub PushSimpleCtors($$) |
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160 { |
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161 my ($sym, $filename) = @_; |
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162 $sym =~ /(_ZN\d+.+C)9E.*$/o; |
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163 my $s = $1; |
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164 my $i = length $s; |
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165 my $e = substr $sym, $i + 1; |
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166 my $C1 = "$s"."1"."$e"; |
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167 my $C2 = "$s"."2"."$e"; |
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168 push @exports, " _$sym\n"; |
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169 PushSym($C1, $filename); |
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170 PushSym($C2, $filename); |
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171 } |
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172 |
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173 sub D9Dtor($) |
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174 { |
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175 my ($sym) = @_; |
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176 return 1 if simpleD9Ctor($sym); |
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177 if ($sym =~ /_ZN(\d+)(.+)D9E.*$/) { |
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178 my $l = $1; |
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179 my $s = $2; |
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180 my $t_params = substr $s, $l; |
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181 return 1 if ($t_params =~ /^I.*I$/); # not totally convincing check for templated ctor |
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182 } |
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183 return 0; |
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184 } |
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185 |
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186 sub PushDtors($$) |
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187 { |
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188 my ($sym, $filename) = @_; |
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189 return PushSimpleDtors($sym, $filename) if (simpleD9Ctor($sym)); |
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190 |
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191 my ($sym, $filename) = @_; |
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192 $sym =~ /(_ZN\d+.+ID)9E.*$/o; |
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193 my $s = $1; |
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194 my $i = length $s; |
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195 my $e = substr $sym, $i + 1; |
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196 my $D0 = "$s"."0"."$e"; |
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197 my $D1 = "$s"."1"."$e"; |
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198 my $D2 = "$s"."2"."$e"; |
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199 push @exports, " _$sym\n"; |
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200 PushSym($D0, $filename); |
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201 PushSym($D1, $filename); |
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202 PushSym($D2, $filename); |
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203 } |
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204 |
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205 |
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206 sub PushSimpleDtors($$) |
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207 { |
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208 my ($sym, $filename) = @_; |
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209 $sym =~ /(_ZN\d+.+D)9E.*$/o; |
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210 my $s = $1; |
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211 my $i = length $s; |
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212 my $e = substr $sym, $i + 1; |
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213 my $D0 = "$s"."0"."$e"; |
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214 my $D1 = "$s"."1"."$e"; |
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215 my $D2 = "$s"."2"."$e"; |
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216 push @exports, " _$sym\n"; |
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217 PushSym($D0, $filename); |
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218 PushSym($D1, $filename); |
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219 PushSym($D2, $filename); |
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220 } |
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221 |