[cfe-commits] r145651 - in /cfe/trunk: lib/Driver/ToolChains.cpp runtime/compiler-rt/Makefile

[Nico Weber]

Very cool!

When I use clang++ with -faddress-sanitizer, I get a "ld: warning:
duplicate dylib /usr/lib/libstdc++.6.dylib" however.

Nico

On Thu, Dec 1, 2011 at 3:40 PM, Daniel Dunbar <daniel at zuster.org> wrote:
> Author: ddunbar
> Date: Thu Dec  1 17:40:18 2011
> New Revision: 145651
>
> URL: http://llvm.org/viewvc/llvm-project?rev=145651&view=rev
> Log:
> Driver/Darwin: Add ASAN runtime library link support.
>
> Modified:
>    cfe/trunk/lib/Driver/ToolChains.cpp
>    cfe/trunk/runtime/compiler-rt/Makefile
>
> Modified: cfe/trunk/lib/Driver/ToolChains.cpp
> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains.cpp?rev=145651&r1=145650&r2=145651&view=diff
> ==============================================================================
> --- cfe/trunk/lib/Driver/ToolChains.cpp (original)
> +++ cfe/trunk/lib/Driver/ToolChains.cpp Thu Dec  1 17:40:18 2011
> @@ -467,6 +467,22 @@
>     }
>   }
>
> +  // Add ASAN runtime library, if required.
> +  if (Args.hasFlag(options::OPT_faddress_sanitizer,
> +                   options::OPT_fno_address_sanitizer, false)) {
> +    if (isTargetIPhoneOS()) {
> +      getDriver().Diag(diag::err_drv_clang_unsupported_per_platform)
> +        << "-faddress-sanitizer";
> +    } else {
> +      AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.asan_osx.a");
> +
> +      // The ASAN runtime library requires C++ and CoreFoundation.
> +      AddCXXStdlibLibArgs(Args, CmdArgs);
> +      CmdArgs.push_back("-framework");
> +      CmdArgs.push_back("CoreFoundation");
> +    }
> +  }
> +
>   // Otherwise link libSystem, then the dynamic runtime library, and finally any
>   // target specific static runtime library.
>   CmdArgs.push_back("-lSystem");
>
> Modified: cfe/trunk/runtime/compiler-rt/Makefile
> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/runtime/compiler-rt/Makefile?rev=145651&r1=145650&r2=145651&view=diff
> ==============================================================================
> --- cfe/trunk/runtime/compiler-rt/Makefile (original)
> +++ cfe/trunk/runtime/compiler-rt/Makefile Thu Dec  1 17:40:18 2011
> @@ -78,7 +78,7 @@
>  RuntimeDirs += darwin
>  RuntimeLibrary.darwin.Configs := \
>        eprintf 10.4 osx ios cc_kext \
> -       profile_osx profile_ios
> +       asan_osx profile_osx profile_ios
>
>  # On Darwin, fake Clang into using the iOS assembler (since compiler-rt wants to
>  # build ARM bits).
>
>
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