Implemented linking to a dummy ASan runtime

src/IceInstrumentation.cpp

Index: src/IceInstrumentation.cpp
diff --git a/src/IceInstrumentation.cpp b/src/IceInstrumentation.cpp
index 0d56100280d332dab62441f2dfb5463261bc5e78..fc2a4a5431f454b2cc77fdba28e6fd1b05ad59ec 100644
--- a/src/IceInstrumentation.cpp
+++ b/src/IceInstrumentation.cpp
@@ -41,6 +41,9 @@ void Instrumentation::instrumentFunc(Cfg *Func) {
       Context.advanceNext();
     }
   }
+
+  if (Func->getFunctionName().toStringOrEmpty() == "_start")
+    instrumentStart(Func);
 }
 
 void Instrumentation::instrumentInst(LoweringContext &Context) {