[cfe-commits] r130828 - /cfe/trunk/lib/Driver/Tools.cpp

[Nick Lewycky]

Author: nicholas
Date: Tue May  3 21:06:19 2011
New Revision: 130828

URL: http://llvm.org/viewvc/llvm-project?rev=130828&view=rev
Log:
Fix use after free through StringRef.

Modified:
    cfe/trunk/lib/Driver/Tools.cpp

Modified: cfe/trunk/lib/Driver/Tools.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?rev=130828&r1=130827&r2=130828&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/Tools.cpp (original)
+++ cfe/trunk/lib/Driver/Tools.cpp Tue May  3 21:06:19 2011
@@ -643,8 +643,9 @@
   CmdArgs.push_back("-target-abi");
   CmdArgs.push_back(ABIName);
 
+  std::string MArch;
   if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
-    llvm::StringRef MArch = A->getValue(Args);
+    MArch = A->getValue(Args);
     CmdArgs.push_back("-target-cpu");
 
     if ((MArch == "r2000") || (MArch == "r3000"))
@@ -652,7 +653,7 @@
     else if (MArch == "r6000")
       CmdArgs.push_back("mips2");
     else
-      CmdArgs.push_back(MArch.str().c_str());
+      CmdArgs.push_back(MArch.c_str());
   }
 
   // Select the float ABI as determined by -msoft-float, -mhard-float, and