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69b6763797
'arch' and 'os' build configurations with valid identifiers as arguments, but which are unknown to the compiler, will cause the compiler to silently skip over that code as it has an inactive clause. Emit a diagnostic, but not an error so as not to inadvertantly break code that may be in a compiler without knowledge of a particular operating system or architecture. rdar://problem/22052176 Swift SVN r32219
140 lines
4.1 KiB
C++
140 lines
4.1 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 "swift/Config.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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const std::vector<std::string> LangOptions::SupportedOSBuildConfigArguments = {
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"OSX",
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#if defined(SWIFT_ENABLE_TARGET_TVOS)
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"tvOS",
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#endif
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"watchOS",
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"iOS",
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"Linux"
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};
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const std::vector<std::string> LangOptions::SupportedArchBuildConfigArguments = {
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"arm",
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"arm64",
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"i386",
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"x86_64"
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};
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bool LangOptions::isOSBuildConfigSupported(llvm::StringRef OSName) {
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auto foundIt = std::find(SupportedOSBuildConfigArguments.begin(),
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SupportedOSBuildConfigArguments.end(), OSName);
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return foundIt != SupportedOSBuildConfigArguments.end();
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}
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bool LangOptions::isArchBuildConfigSupported(llvm::StringRef ArchName) {
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auto foundIt = std::find(SupportedArchBuildConfigArguments.begin(),
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SupportedArchBuildConfigArguments.end(), ArchName);
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return foundIt != SupportedArchBuildConfigArguments.end();
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}
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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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