[llvm-commits] [llvm] r146698 - /llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp

[Kostya Serebryany]

Author: kcc
Date: Thu Dec 15 16:55:55 2011
New Revision: 146698

URL: http://llvm.org/viewvc/llvm-project?rev=146698&view=rev
Log:
[asan] add the name of the module to the description of a global variable. This improves the readability of global-buffer-overflow reports.

Modified:
    llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp

Modified: llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp?rev=146698&r1=146697&r2=146698&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp (original)
+++ llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp Thu Dec 15 16:55:55 2011
@@ -521,7 +521,11 @@
         NewTy, G->getInitializer(),
         Constant::getNullValue(RightRedZoneTy), NULL);
 
-    GlobalVariable *Name = createPrivateGlobalForString(M, G->getName());
+    SmallString<2048> DescriptionOfGlobal = G->getName();
+    DescriptionOfGlobal += " (";
+    DescriptionOfGlobal += M.getModuleIdentifier();
+    DescriptionOfGlobal += ")";
+    GlobalVariable *Name = createPrivateGlobalForString(M, DescriptionOfGlobal);
 
     // Create a new global variable with enough space for a redzone.
     GlobalVariable *NewGlobal = new GlobalVariable(