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-global-initializers" script for WebKit Open Source Project 30 31# Intended to be invoked from an Xcode build step to check if there are 32# any global initializers in a target. 33 34use warnings; 35use strict; 36 37use File::Basename; 38 39sub touch($); 40 41my $arch = $ENV{'CURRENT_ARCH'}; 42my $configuration = $ENV{'CONFIGURATION'}; 43my $target = $ENV{'TARGET_NAME'}; 44my $variant = $ENV{'CURRENT_VARIANT'}; 45my $coverageBuild = $ENV{'WEBKIT_COVERAGE_BUILD'}; 46my $debugRoot = $ENV{'WEBKIT_DEBUG_ROOT'}; 47 48$arch = $ENV{'NATIVE_ARCH'} if !$arch; # for Xcode 2.1, which does not have CURRENT_ARCH 49$variant = "normal" if !$variant; # for Xcode 2.1, which does not have CURRENT_VARIANT 50 51my $executablePath = "$ENV{'TARGET_BUILD_DIR'}/$ENV{'EXECUTABLE_PATH'}"; 52 53my $buildTimestampPath = $ENV{'TARGET_TEMP_DIR'} . "/" . basename($0) . ".timestamp"; 54my $buildTimestampAge = -M $buildTimestampPath; 55my $scriptAge = -M $0; 56 57my $list = $ENV{"LINK_FILE_LIST_${variant}_${arch}"}; 58 59if (!open LIST, $list) { 60 print "ERROR: Could not open $list\n"; 61 exit 1; 62} 63 64my @files = <LIST>; 65chomp @files; 66close LIST; 67 68my $sawError = 0; 69 70for my $file (sort @files) { 71 if (defined $buildTimestampAge && $buildTimestampAge < $scriptAge) { 72 my $fileAge = -M $file; 73 next if defined $fileAge && $fileAge > $buildTimestampAge; 74 } 75 if (!open NM, "(nm '$file' | sed 's/^/STDOUT:/') 2>&1 |") { 76 print "ERROR: Could not open $file\n"; 77 $sawError = 1; 78 next; 79 } 80 my $sawGlobal = 0; 81 while (<NM>) { 82 if (/^STDOUT:/) { 83 $sawGlobal = 1 if /__GLOBAL__I/; 84 } else { 85 print STDERR if $_ ne "nm: no name list\n"; 86 } 87 } 88 close NM; 89 if ($sawGlobal) { 90 my $shortName = $file; 91 $shortName =~ s/.*\///; 92 93 # Special cases for files that have initializers in debug builds. 94 if ($configuration eq "Debug" or $variant eq "debug" or $debugRoot) { 95 if ($target eq "JavaScriptCore") { 96 next if $shortName eq "AllInOneFile.o"; 97 next if $shortName eq "Opcode.o"; 98 next if $shortName eq "Structure.o"; 99 next if $shortName eq "nodes.o"; 100 } 101 if ($target eq "WebCore") { 102 next if $shortName eq "CachedPage.o"; 103 next if $shortName eq "CachedResource.o"; 104 next if $shortName eq "Frame.o"; 105 next if $shortName eq "JSCustomSQLTransactionCallback.o"; 106 next if $shortName eq "JSLazyEventListener.o"; 107 next if $shortName eq "Node.o"; 108 next if $shortName eq "Page.o"; 109 next if $shortName eq "Range.o"; 110 next if $shortName eq "BidiRun.o"; 111 next if $shortName eq "RenderObject.o"; 112 next if $shortName eq "SubresourceLoader.o"; 113 next if $shortName eq "SVGElementInstance.o"; 114 next if $shortName eq "XMLHttpRequest.o"; 115 } 116 if ($target eq "WebKit") { 117 next if $shortName eq "HostedNetscapePluginStream.o"; 118 next if $shortName eq "NetscapePluginInstanceProxy.o"; 119 } 120 } 121 122 print "ERROR: $shortName has a global initializer in it! ($file)\n"; 123 $sawError = 1; 124 } 125} 126 127if ($sawError and !$coverageBuild) { 128 unlink $executablePath; 129 exit 1; 130} 131 132touch($buildTimestampPath); 133exit 0; 134 135sub touch($) 136{ 137 my ($path) = @_; 138 open(TOUCH, ">", $path) or die "$!"; 139 close(TOUCH); 140} 141