[ASan] Link with the dynamic runtime on OS X

This patch changes the behavior of the -fsanitize=address flag, making it use the dynamic runtime library (libclang_rt.asan_osx_dynamic.dylib) instead of the static one. It also drops the CoreFoundation dependency, since the dynamic runtime doesn't need it.

llvm-svn: 173135

diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index 5b7a6da..6f68f1c 100644 (file)
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -339,12 +339,10 @@ void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args,
       getDriver().Diag(diag::err_drv_clang_unsupported_per_platform)
         << "-fsanitize=address";
     } else {
-      AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.asan_osx.a", true);
+      AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.asan_osx_dynamic.dylib", true);
 
-      // The ASAN runtime library requires C++ and CoreFoundation.
+      // The ASAN runtime library requires C++.
       AddCXXStdlibLibArgs(Args, CmdArgs);
-      CmdArgs.push_back("-framework");
-      CmdArgs.push_back("CoreFoundation");
     }
   }