blob: dca3491c19cf68fb9306e7f86dbc9df2e1007c47 [file] [log] [blame]
#!/usr/bin/env perl
# Copyright (C) 2006, 2007, 2008 Apple 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:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. 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.
# 3. Neither the name of Apple Inc. ("Apple") nor the names of
# its contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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.
# "check-for-global-initializers" script for WebKit Open Source Project
# Intended to be invoked from an Xcode build step to check if there are
# any global initializers in a target.
use warnings;
use strict;
use File::Basename;
sub touch($);
sub demangle($);
my $arch = $ENV{'CURRENT_ARCH'};
my $configuration = $ENV{'CONFIGURATION'};
my $target = $ENV{'TARGET_NAME'};
my $variant = $ENV{'CURRENT_VARIANT'};
my $coverageBuild = $ENV{'WEBKIT_COVERAGE_BUILD'};
my $debugRoot = $ENV{'WEBKIT_DEBUG_ROOT'};
my $executablePath = "$ENV{'TARGET_BUILD_DIR'}/$ENV{'EXECUTABLE_PATH'}";
my $buildTimestampPath = $ENV{'TARGET_TEMP_DIR'} . "/" . basename($0) . ".timestamp";
my $buildTimestampAge = -M $buildTimestampPath;
my $scriptAge = -M $0;
my $list = $ENV{"LINK_FILE_LIST_${variant}_${arch}"};
if (!open LIST, $list) {
print "ERROR: Could not open $list\n";
exit 1;
}
my @files = <LIST>;
chomp @files;
close LIST;
my $sawError = 0;
for my $file (sort @files) {
if (defined $buildTimestampAge && $buildTimestampAge < $scriptAge) {
my $fileAge = -M $file;
next if defined $fileAge && $fileAge > $buildTimestampAge;
}
if (!open NM, "(nm '$file' | sed 's/^/STDOUT:/') 2>&1 |") {
print "ERROR: Could not open $file\n";
$sawError = 1;
next;
}
my $sawGlobal = 0;
my @globals;
while (<NM>) {
if (/^STDOUT:/) {
my $line = $_;
if ($line =~ /__GLOBAL__I(.+)$/) {
$sawGlobal = 1;
push(@globals, demangle($1));
}
} else {
print STDERR if $_ ne "nm: no name list\n";
}
}
close NM;
if ($sawGlobal) {
my $shortName = $file;
$shortName =~ s/.*\///;
# Special cases for files that have initializers in debug builds.
if ($configuration eq "Debug" or $variant eq "debug" or $debugRoot) {
if ($target eq "JavaScriptCore") {
next if $shortName eq "AllInOneFile.o";
next if $shortName eq "Opcode.o";
next if $shortName eq "Structure.o";
next if $shortName eq "nodes.o";
}
if ($target eq "WebCore") {
next if $shortName eq "BidiRun.o";
next if $shortName eq "CachedPage.o";
next if $shortName eq "CachedResource.o";
next if $shortName eq "FEGaussianBlur.o";
next if $shortName eq "Frame.o";
next if $shortName eq "JSCustomSQLTransactionCallback.o";
next if $shortName eq "JSLazyEventListener.o";
next if $shortName eq "Node.o";
next if $shortName eq "Page.o";
next if $shortName eq "Range.o";
next if $shortName eq "RenderObject.o";
next if $shortName eq "SubresourceLoader.o";
next if $shortName eq "XMLHttpRequest.o";
}
if ($target eq "WebKit") {
next if $shortName eq "HostedNetscapePluginStream.o";
next if $shortName eq "NetscapePluginInstanceProxy.o";
}
if ($target eq "WebKit2") {
next if $shortName eq "WebContext.o";
next if $shortName eq "WebFrame.o";
next if $shortName eq "WebPage.o";
next if $shortName eq "WebPageProxy.o";
}
}
print "ERROR: $shortName has one or more global initializers in it! ($file), near @globals\n";
$sawError = 1;
}
}
if ($sawError and !$coverageBuild) {
unlink $executablePath;
exit 1;
}
touch($buildTimestampPath);
exit 0;
sub touch($)
{
my ($path) = @_;
open(TOUCH, ">", $path) or die "$!";
close(TOUCH);
}
sub demangle($)
{
my ($symbol) = @_;
if (!open FILT, "c++filt $symbol |") {
print "ERROR: Could not open c++filt\n";
return;
}
my $result = <FILT>;
close FILT;
chomp $result;
return $result;
}