From: Kostya Serebryany <kcc@google.com>
Date: Wed, 7 Nov 2012 12:42:18 +0000 (+0000)
Subject: [asan] fix bug 14277 (asan needs to fail with fata error if an __asan interface funct... 
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=157a5153769d2cd7e0f04f55642e4e6b0441b9d1;p=platform%2Fupstream%2Fllvm.git

[asan] fix bug 14277 (asan needs to fail with fata error if an __asan interface function is being redefined. Before this fix asan asserts)

llvm-svn: 167529
---

diff --git a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index 93f785c..b7be462 100644
--- a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -731,8 +731,9 @@ bool AddressSanitizer::doInitialization(Module &M) {
       std::string FunctionName = std::string(kAsanReportErrorTemplate) +
           (AccessIsWrite ? "store" : "load") + itostr(1 << AccessSizeIndex);
       // If we are merging crash callbacks, they have two parameters.
-      AsanErrorCallback[AccessIsWrite][AccessSizeIndex] = cast<Function>(
-          M.getOrInsertFunction(FunctionName, IRB.getVoidTy(), IntptrTy, NULL));
+      AsanErrorCallback[AccessIsWrite][AccessSizeIndex] =
+          checkInterfaceFunction(M.getOrInsertFunction(
+              FunctionName, IRB.getVoidTy(), IntptrTy, NULL));
     }
   }