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110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
//===--- LangOptions.cpp - Language & configuration options ---------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the LangOptions class, which provides various
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// language and configuration flags.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/Basic/LangOptions.h"
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#include "swift/Basic/Range.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace swift;
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StringRef LangOptions::getTargetConfigOption(StringRef Name) const {
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// Last one wins.
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for (auto &Opt : reversed(TargetConfigOptions)) {
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if (Opt.first == Name)
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return Opt.second;
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}
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return StringRef();
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}
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bool LangOptions::hasBuildConfigOption(StringRef Name) const {
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return std::find(BuildConfigOptions.begin(), BuildConfigOptions.end(), Name)
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!= BuildConfigOptions.end();
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}
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std::pair<bool, bool> LangOptions::setTarget(llvm::Triple triple) {
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clearAllTargetConfigOptions();
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if (triple.getOS() == llvm::Triple::Darwin &&
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triple.getVendor() == llvm::Triple::Apple) {
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// Rewrite darwinX.Y triples to macosx10.X'.Y ones.
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// It affects code generation on our platform.
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llvm::SmallString<16> osxBuf;
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llvm::raw_svector_ostream osx(osxBuf);
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osx << llvm::Triple::getOSTypeName(llvm::Triple::MacOSX);
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unsigned major, minor, micro;
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triple.getMacOSXVersion(major, minor, micro);
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osx << major << "." << minor;
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if (micro != 0)
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osx << "." << micro;
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triple.setOSName(osx.str());
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}
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Target = std::move(triple);
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bool UnsupportedOS = false;
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// Set the "os" target configuration.
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if (Target.isMacOSX())
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addTargetConfigOption("os", "OSX");
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#if defined(SWIFT_ENABLE_TARGET_TVOS)
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else if (triple.isTvOS())
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addTargetConfigOption("os", "tvOS");
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#endif // SWIFT_ENABLE_TARGET_TVOS
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else if (triple.isWatchOS())
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addTargetConfigOption("os", "watchOS");
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else if (triple.isiOS())
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addTargetConfigOption("os", "iOS");
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else if (triple.isOSLinux())
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addTargetConfigOption("os", "Linux");
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else {
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UnsupportedOS = true;
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}
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bool UnsupportedArch = false;
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// Set the "arch" target configuration.
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switch (Target.getArch()) {
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case llvm::Triple::ArchType::arm:
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addTargetConfigOption("arch", "arm");
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break;
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case llvm::Triple::ArchType::aarch64:
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addTargetConfigOption("arch", "arm64");
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break;
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case llvm::Triple::ArchType::x86:
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addTargetConfigOption("arch", "i386");
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break;
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case llvm::Triple::ArchType::x86_64:
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addTargetConfigOption("arch", "x86_64");
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break;
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default:
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UnsupportedArch = true;
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}
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if (UnsupportedOS || UnsupportedArch)
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return { UnsupportedOS, UnsupportedArch };
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// Set the "runtime" target configuration.
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if (EnableObjCInterop)
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addTargetConfigOption("_runtime", "_ObjC");
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else
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addTargetConfigOption("_runtime", "_Native");
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return { false, false };
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}
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