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| 1 #!/usr/bin/perl | |
| 2 | |
| 3 # Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. | |
| 4 # | |
| 5 # Redistribution and use in source and binary forms, with or without | |
| 6 # modification, are permitted provided that the following conditions | |
| 7 # are met: | |
| 8 # | |
| 9 # 1. Redistributions of source code must retain the above copyright | |
| 10 # notice, this list of conditions and the following disclaimer. | |
| 11 # 2. Redistributions in binary form must reproduce the above copyright | |
| 12 # notice, this list of conditions and the following disclaimer in the | |
| 13 # documentation and/or other materials provided with the distribution. | |
| 14 # 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of | |
| 15 # its contributors may be used to endorse or promote products derived | |
| 16 # from this software without specific prior written permission. | |
| 17 # | |
| 18 # THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
| 19 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 20 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 21 # DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
| 22 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 23 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 24 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 25 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 27 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 28 | |
| 29 # "check-for-exit-time-destructors" script for WebKit Open Source Project | |
| 30 | |
| 31 # Intended to be invoked from an Xcode build step to check if there are | |
| 32 # any exit-time destructors in a target. | |
| 33 | |
| 34 use warnings; | |
| 35 use strict; | |
| 36 | |
| 37 use File::Basename; | |
| 38 | |
| 39 sub touch($); | |
| 40 sub printFunctions($$); | |
| 41 | |
| 42 my $arch = $ENV{'CURRENT_ARCH'}; | |
| 43 my $configuration = $ENV{'CONFIGURATION'}; | |
| 44 my $target = $ENV{'TARGET_NAME'}; | |
| 45 my $variant = $ENV{'CURRENT_VARIANT'}; | |
| 46 my $coverageBuild = $ENV{'WEBKIT_COVERAGE_BUILD'}; | |
| 47 my $debugRoot = $ENV{'WEBKIT_DEBUG_ROOT'}; | |
| 48 | |
| 49 $arch = $ENV{'NATIVE_ARCH'} if !$arch; # for Xcode 2.1, which does not have CURR
ENT_ARCH | |
| 50 $variant = "normal" if !$variant; # for Xcode 2.1, which does not have CURRENT_V
ARIANT | |
| 51 | |
| 52 my $executablePath = "$ENV{'TARGET_BUILD_DIR'}/$ENV{'EXECUTABLE_PATH'}"; | |
| 53 | |
| 54 my $buildTimestampPath = $ENV{'TARGET_TEMP_DIR'} . "/" . basename($0) . ".timest
amp"; | |
| 55 my $buildTimestampAge = -M $buildTimestampPath; | |
| 56 my $scriptAge = -M $0; | |
| 57 | |
| 58 my $list = $ENV{"LINK_FILE_LIST_${variant}_${arch}"}; | |
| 59 | |
| 60 if (!open LIST, $list) { | |
| 61 print "ERROR: Could not open $list\n"; | |
| 62 exit 1; | |
| 63 } | |
| 64 | |
| 65 my @files = <LIST>; | |
| 66 chomp @files; | |
| 67 close LIST; | |
| 68 | |
| 69 my $sawError = 0; | |
| 70 | |
| 71 for my $file (sort @files) { | |
| 72 if (defined $buildTimestampAge && $buildTimestampAge < $scriptAge) { | |
| 73 my $fileAge = -M $file; | |
| 74 next if defined $fileAge && $fileAge > $buildTimestampAge; | |
| 75 } | |
| 76 if (!open NM, "(nm '$file' | sed 's/^/STDOUT:/') 2>&1 |") { | |
| 77 print "ERROR: Could not open $file\n"; | |
| 78 $sawError = 1; | |
| 79 next; | |
| 80 } | |
| 81 my $sawAtExit = 0; | |
| 82 my $shortName = $file; | |
| 83 $shortName =~ s/.*\///; | |
| 84 | |
| 85 while (<NM>) { | |
| 86 if (/^STDOUT:/) { | |
| 87 # With GC logging enabled Heap.o may contain finalizers, so we ignor
e them. | |
| 88 $sawAtExit = 1 if (/___cxa_atexit/ && ($shortName ne "Heap.o")); | |
| 89 } else { | |
| 90 print STDERR if $_ ne "nm: no name list\n"; | |
| 91 } | |
| 92 } | |
| 93 close NM; | |
| 94 next unless $sawAtExit; | |
| 95 | |
| 96 $sawError = 1 if printFunctions($shortName, $file); | |
| 97 } | |
| 98 | |
| 99 if ($sawError and !$coverageBuild) { | |
| 100 print "ERROR: Use DEFINE_STATIC_LOCAL from <wtf/StdLibExtras.h>\n"; | |
| 101 unlink $executablePath; | |
| 102 exit 1; | |
| 103 } | |
| 104 | |
| 105 touch($buildTimestampPath); | |
| 106 exit 0; | |
| 107 | |
| 108 sub touch($) | |
| 109 { | |
| 110 my ($path) = @_; | |
| 111 open(TOUCH, ">", $path) or die "$!"; | |
| 112 close(TOUCH); | |
| 113 } | |
| 114 | |
| 115 sub demangle($) | |
| 116 { | |
| 117 my ($symbol) = @_; | |
| 118 if (!open FILT, "c++filt $symbol |") { | |
| 119 print "ERROR: Could not open c++filt\n"; | |
| 120 return; | |
| 121 } | |
| 122 my $result = <FILT>; | |
| 123 close FILT; | |
| 124 chomp $result; | |
| 125 return $result; | |
| 126 } | |
| 127 | |
| 128 sub printFunctions($$) | |
| 129 { | |
| 130 my ($shortName, $path) = @_; | |
| 131 if (!open OTOOL, "otool -tV '$path' |") { | |
| 132 print "WARNING: Could not open $path\n"; | |
| 133 return 0; | |
| 134 } | |
| 135 my %functions; | |
| 136 my $currentSymbol = ""; | |
| 137 while (<OTOOL>) { | |
| 138 $currentSymbol = $1 if /^(\w+):$/; | |
| 139 next unless $currentSymbol; | |
| 140 $functions{demangle($currentSymbol)} = 1 if /___cxa_atexit/; | |
| 141 } | |
| 142 close OTOOL; | |
| 143 my $result = 0; | |
| 144 for my $function (sort keys %functions) { | |
| 145 if (!$result) { | |
| 146 print "ERROR: $shortName has exit time destructors in it! ($path)\n"
; | |
| 147 $result = 1; | |
| 148 } | |
| 149 print "ERROR: In function $function\n"; | |
| 150 } | |
| 151 return $result; | |
| 152 } | |
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