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1 #!/usr/bin/perl |
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2 |
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3 # Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. |
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4 # |
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5 # Redistribution and use in source and binary forms, with or without |
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6 # modification, are permitted provided that the following conditions |
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7 # are met: |
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8 # |
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9 # 1. Redistributions of source code must retain the above copyright |
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10 # notice, this list of conditions and the following disclaimer. |
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11 # 2. Redistributions in binary form must reproduce the above copyright |
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12 # notice, this list of conditions and the following disclaimer in the |
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13 # documentation and/or other materials provided with the distribution. |
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14 # 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
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15 # its contributors may be used to endorse or promote products derived |
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16 # from this software without specific prior written permission. |
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17 # |
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18 # THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
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19 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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20 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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21 # DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
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22 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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23 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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24 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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25 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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27 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 |
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29 # "check-for-exit-time-destructors" script for WebKit Open Source Project |
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30 |
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31 # Intended to be invoked from an Xcode build step to check if there are |
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32 # any exit-time destructors in a target. |
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33 |
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34 use warnings; |
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35 use strict; |
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36 |
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37 use File::Basename; |
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38 |
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39 sub touch($); |
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40 sub printFunctions($$); |
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41 |
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42 my $arch = $ENV{'CURRENT_ARCH'}; |
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43 my $configuration = $ENV{'CONFIGURATION'}; |
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44 my $target = $ENV{'TARGET_NAME'}; |
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45 my $variant = $ENV{'CURRENT_VARIANT'}; |
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46 my $coverageBuild = $ENV{'WEBKIT_COVERAGE_BUILD'}; |
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47 my $debugRoot = $ENV{'WEBKIT_DEBUG_ROOT'}; |
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48 |
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49 $arch = $ENV{'NATIVE_ARCH'} if !$arch; # for Xcode 2.1, which does not have CURRENT_ARCH |
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50 $variant = "normal" if !$variant; # for Xcode 2.1, which does not have CURRENT_VARIANT |
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51 |
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52 my $executablePath = "$ENV{'TARGET_BUILD_DIR'}/$ENV{'EXECUTABLE_PATH'}"; |
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53 |
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54 my $buildTimestampPath = $ENV{'TARGET_TEMP_DIR'} . "/" . basename($0) . ".timestamp"; |
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55 my $buildTimestampAge = -M $buildTimestampPath; |
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56 my $scriptAge = -M $0; |
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57 |
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58 my $list = $ENV{"LINK_FILE_LIST_${variant}_${arch}"}; |
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59 |
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60 if (!open LIST, $list) { |
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61 print "ERROR: Could not open $list\n"; |
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62 exit 1; |
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63 } |
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64 |
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65 my @files = <LIST>; |
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66 chomp @files; |
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67 close LIST; |
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68 |
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69 my $sawError = 0; |
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70 |
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71 for my $file (sort @files) { |
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72 if (defined $buildTimestampAge && $buildTimestampAge < $scriptAge) { |
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73 my $fileAge = -M $file; |
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74 next if defined $fileAge && $fileAge > $buildTimestampAge; |
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75 } |
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76 if (!open NM, "(nm '$file' | sed 's/^/STDOUT:/') 2>&1 |") { |
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77 print "ERROR: Could not open $file\n"; |
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78 $sawError = 1; |
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79 next; |
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80 } |
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81 my $sawAtExit = 0; |
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82 while (<NM>) { |
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83 if (/^STDOUT:/) { |
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84 $sawAtExit = 1 if /___cxa_atexit/; |
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85 } else { |
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86 print STDERR if $_ ne "nm: no name list\n"; |
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87 } |
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88 } |
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89 close NM; |
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90 next unless $sawAtExit; |
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91 |
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92 my $shortName = $file; |
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93 $shortName =~ s/.*\///; |
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94 |
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95 $sawError = 1 if printFunctions($shortName, $file); |
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96 } |
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97 |
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98 if ($sawError and !$coverageBuild) { |
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99 print "ERROR: Use DEFINE_STATIC_LOCAL from <wtf/StdLibExtras.h>\n"; |
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100 unlink $executablePath; |
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101 exit 1; |
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102 } |
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103 |
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104 touch($buildTimestampPath); |
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105 exit 0; |
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106 |
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107 sub touch($) |
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108 { |
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109 my ($path) = @_; |
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110 open(TOUCH, ">", $path) or die "$!"; |
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111 close(TOUCH); |
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112 } |
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113 |
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114 sub demangle($) |
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115 { |
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116 my ($symbol) = @_; |
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117 if (!open FILT, "c++filt $symbol |") { |
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118 print "ERROR: Could not open c++filt\n"; |
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119 return; |
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120 } |
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121 my $result = <FILT>; |
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122 close FILT; |
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123 chomp $result; |
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124 return $result; |
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125 } |
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126 |
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127 sub printFunctions($$) |
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128 { |
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129 my ($shortName, $path) = @_; |
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130 if (!open OTOOL, "otool -tV '$path' |") { |
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131 print "WARNING: Could not open $path\n"; |
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132 return 0; |
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133 } |
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134 my %functions; |
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135 my $currentSymbol = ""; |
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136 while (<OTOOL>) { |
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137 $currentSymbol = $1 if /^(\w+):$/; |
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138 next unless $currentSymbol; |
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139 $functions{demangle($currentSymbol)} = 1 if /___cxa_atexit/; |
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140 } |
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141 close OTOOL; |
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142 my $result = 0; |
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143 for my $function (sort keys %functions) { |
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144 if (!$result) { |
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145 print "ERROR: $shortName has exit time destructors in it! ($path)\n"; |
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146 $result = 1; |
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147 } |
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148 print "ERROR: In function $function\n"; |
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149 } |
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150 return $result; |
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151 } |