2020-08-29 13:27:11 +00:00
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#!/usr/bin/env ruby
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# Copyright (C) 2011-2018 Apple Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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# THE POSSIBILITY OF SUCH DAMAGE.
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$: << File.dirname(__FILE__)
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require "config"
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require "backends"
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require "digest/sha1"
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require "offsets"
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require "parser"
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require "self_hash"
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require "settings"
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require "transform"
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IncludeFile.processIncludeOptions()
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inputFlnm = ARGV.shift
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outputFlnm = ARGV.shift
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validBackends = canonicalizeBackendNames(ARGV.shift.split(/[,\s]+/))
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includeOnlyBackends(validBackends)
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inputHash = "// SettingsExtractor input hash: #{parseHash(inputFlnm)} #{selfHash}"
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if FileTest.exist? outputFlnm
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File.open(outputFlnm, "r") {
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| inp |
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firstLine = inp.gets
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if firstLine and firstLine.chomp == inputHash
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2022-10-23 02:55:20 +00:00
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# Nothing changed.
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2020-08-29 13:27:11 +00:00
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exit 0
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end
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}
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end
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originalAST = parse(inputFlnm)
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prunedAST = Sequence.new(originalAST.codeOrigin, originalAST.filter(Setting))
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File.open(outputFlnm, "w") {
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| outp |
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$output = outp
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outp.puts inputHash
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settingsCombinations = computeSettingsCombinations(prunedAST)
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length = settingsCombinations.size * (1 + OFFSET_HEADER_MAGIC_NUMBERS.size)
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outp.puts "static const int64_t settingsExtractorTable[#{length}] = {"
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emitCodeInAllConfigurations(prunedAST) {
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| settings, ast, backend, index |
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OFFSET_HEADER_MAGIC_NUMBERS.each {
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| number |
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$output.puts "unsigned(#{number}),"
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}
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outp.puts "#{index},"
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}
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outp.puts "};"
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}
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