[tsan] Allow -fsanitize=thread for iOS-style simulator targets
Update the clang driver to allow -fsanitize=thread when targeting x86_64 iOS and tvOS
simulators. Also restrict TSan targeting OS X to only be supported on x86_64 and not i386.
Differential Revision: http://reviews.llvm.org/D18280
llvm-svn: 263913
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index 263d5df..fd69ca8 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -1225,13 +1225,18 @@
}
SanitizerMask Darwin::getSupportedSanitizers() const {
+ const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
SanitizerMask Res = ToolChain::getSupportedSanitizers();
Res |= SanitizerKind::Address;
if (isTargetMacOS()) {
if (!isMacosxVersionLT(10, 9))
Res |= SanitizerKind::Vptr;
Res |= SanitizerKind::SafeStack;
- Res |= SanitizerKind::Thread;
+ if (IsX86_64)
+ Res |= SanitizerKind::Thread;
+ } else if (isTargetIOSSimulator() || isTargetTvOSSimulator()) {
+ if (IsX86_64)
+ Res |= SanitizerKind::Thread;
}
return Res;
}