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92 lines
3.2 KiB
C++
92 lines
3.2 KiB
C++
//===--- SanitizerOptions.cpp - Swift Sanitizer 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 - 2016 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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// \file
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// This file implements the parsing of sanitizer arguments.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/Option/SanitizerOptions.h"
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#include "swift/Basic/Platform.h"
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#include "swift/AST/DiagnosticEngine.h"
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#include "swift/AST/DiagnosticsFrontend.h"
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#include "llvm/ADT/StringSwitch.h"
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using namespace swift;
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static StringRef toStringRef(const SanitizerKind kind) {
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switch (kind) {
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case SanitizerKind::Address:
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return "address";
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case SanitizerKind::Thread:
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return "thread";
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case SanitizerKind::None:
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llvm_unreachable("Getting a name for SanitizerKind::None");
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}
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llvm_unreachable("Unsupported sanitizer");
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}
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SanitizerKind swift::parseSanitizerArgValues(const llvm::opt::Arg *A,
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const llvm::Triple &Triple,
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DiagnosticEngine &Diags) {
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SanitizerKind kind = SanitizerKind::None;
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// Find the sanitizer kind.
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SanitizerKind pKind = SanitizerKind::None;
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for (int i = 0, n = A->getNumValues(); i != n; ++i) {
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kind =
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llvm::StringSwitch<SanitizerKind>(A->getValue(i))
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.Case("address", SanitizerKind::Address)
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.Case("thread", SanitizerKind::Thread)
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.Default(SanitizerKind::None);
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if (kind == SanitizerKind::None) {
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Diags.diagnose(SourceLoc(), diag::error_unsupported_option_argument,
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A->getOption().getPrefixedName(), A->getValue(i));
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return kind;
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}
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// Currently, more than one sanitizer cannot be enabled at the same time.
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if (pKind != SanitizerKind::None && pKind != kind) {
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SmallString<128> pb;
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SmallString<128> b;
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Diags.diagnose(SourceLoc(), diag::error_argument_not_allowed_with,
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(A->getOption().getPrefixedName() + toStringRef(pKind)).toStringRef(pb),
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(A->getOption().getPrefixedName() + toStringRef(kind)).toStringRef(b));
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}
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pKind = kind;
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}
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if (kind == SanitizerKind::None)
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return kind;
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// Check if the target is supported for this sanitizer.
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// None of the sanitizers work on Linux right now.
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if (!Triple.isOSDarwin()) {
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SmallString<128> b;
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Diags.diagnose(SourceLoc(), diag::error_unsupported_opt_for_target,
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(A->getOption().getPrefixedName() + toStringRef(kind)).toStringRef(b),
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Triple.getTriple());
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}
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// Thread Sanitizer only works on OS X and the simulators. It's only supported
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// on 64 bit architectures.
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if (kind == SanitizerKind::Thread &&
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(!(Triple.isMacOSX() || tripleIsAnySimulator(Triple)) ||
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!Triple.isArch64Bit())) {
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SmallString<128> b;
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Diags.diagnose(SourceLoc(), diag::error_unsupported_opt_for_target,
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(A->getOption().getPrefixedName() + toStringRef(kind)).toStringRef(b),
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Triple.getTriple());
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}
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return kind;
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}
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