From 1d6469fcb103acef30206ed3ad48c64bea5c84b3 Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Thu, 1 Dec 2011 23:40:18 +0000
Subject: [PATCH] Driver/Darwin: Add ASAN runtime library link support.

llvm-svn: 145651
---
 clang/lib/Driver/ToolChains.cpp    | 16 ++++++++++++++++
 clang/runtime/compiler-rt/Makefile |  2 +-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index 5ebe2828547d..245b3e83084d 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -467,6 +467,22 @@ void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args,
     }
   }
 
+  // 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");
diff --git a/clang/runtime/compiler-rt/Makefile b/clang/runtime/compiler-rt/Makefile
index bba8fb304810..a8cd2e981d64 100644
--- a/clang/runtime/compiler-rt/Makefile
+++ b/clang/runtime/compiler-rt/Makefile
@@ -78,7 +78,7 @@ ifeq ($(OS),Darwin)
 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).