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author | Steve Block <steveblock@google.com> | 2010-02-15 12:23:52 +0000 |
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committer | Steve Block <steveblock@google.com> | 2010-02-16 11:48:32 +0000 |
commit | 8a0914b749bbe7da7768e07a7db5c6d4bb09472b (patch) | |
tree | 73f9065f370435d6fde32ae129d458a8c77c8dff /WebKitTools/Scripts/webkitperl/features.pm | |
parent | bf14be70295513b8076f3fa47a268a7e42b2c478 (diff) | |
download | external_webkit-8a0914b749bbe7da7768e07a7db5c6d4bb09472b.zip external_webkit-8a0914b749bbe7da7768e07a7db5c6d4bb09472b.tar.gz external_webkit-8a0914b749bbe7da7768e07a7db5c6d4bb09472b.tar.bz2 |
Merge webkit.org at r54731 : Initial merge by git
Change-Id: Ia79977b6cf3b0b00c06ef39419989b28e57e4f4a
Diffstat (limited to 'WebKitTools/Scripts/webkitperl/features.pm')
-rw-r--r-- | WebKitTools/Scripts/webkitperl/features.pm | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/WebKitTools/Scripts/webkitperl/features.pm b/WebKitTools/Scripts/webkitperl/features.pm new file mode 100644 index 0000000..1f88022 --- /dev/null +++ b/WebKitTools/Scripts/webkitperl/features.pm @@ -0,0 +1,104 @@ +# Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved +# Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com) +# Copyright (C) 2010 Andras Becsi (abecsi@inf.u-szeged.hu), University of Szeged +# +# 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 Computer, 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. + +# Module to share code to detect the existance of features in built binaries. + +use strict; +use warnings; + +BEGIN { + use Exporter (); + our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS); + $VERSION = 1.00; + @ISA = qw(Exporter); + @EXPORT = qw(&checkWebCoreFeatureSupport + &removeLibraryDependingOnFeature); + %EXPORT_TAGS = ( ); + @EXPORT_OK = (); +} + +sub libraryContainsSymbol($$) +{ + my ($path, $symbol) = @_; + + if (isCygwin() or isWindows()) { + # FIXME: Implement this for Windows. + return 0; + } + + my $foundSymbol = 0; + if (-e $path) { + open NM, "-|", "nm", $path or die; + while (<NM>) { + $foundSymbol = 1 if /$symbol/; # FIXME: This should probably check for word boundaries before/after the symbol name. + } + close NM; + } + return $foundSymbol; +} + +sub hasFeature($$) +{ + my ($featureName, $path) = @_; + my %symbolForFeature = ( + "MathML" => "MathMLElement", + "SVG" => "SVGDefsElement", # We used to look for SVGElement but isSVGElement exists (and would match) in --no-svg builds. + "Accelerated Compositing" => "GraphicsLayer", + "3D Rendering" => "WebCoreHas3DRendering", + "3D Canvas" => "WebGLShader", + "WML" => "WMLElement", + "XHTMLMP" => "isXHTMLMPDocument", + ); + my $symbolName = $symbolForFeature{$featureName}; + die "Unknown feature: $featureName" unless $symbolName; + return libraryContainsSymbol($path, $symbolName); +} + +sub checkWebCoreFeatureSupport($$) +{ + my ($feature, $required) = @_; + my $libraryName = "WebCore"; + my $path = builtDylibPathForName($libraryName); + my $hasFeature = hasFeature($feature, $path); + if ($required && !$hasFeature) { + die "$libraryName at \"$path\" does not include $hasFeature support. See build-webkit --help\n"; + } + return $hasFeature; +} + +sub removeLibraryDependingOnFeature($$$) +{ + my ($libraryName, $featureName, $shouldHaveFeature) = @_; + my $path = builtDylibPathForName($libraryName); + return unless -x $path; + + my $hasFeature = hasFeature($featureName, $path); + system "rm -f $path" if ($shouldHaveFeature xor $hasFeature); +} + +1; |