A small re-factored JIT/MCJIT::getPointerToNamedFunction(), so it could be called with the base class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147610 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/ExecutionEngine/ExecutionEngine.h

@@ -228,6 +228,17 @@ public:
   virtual GenericValue runFunction(Function *F,
                                 const std::vector<GenericValue> &ArgValues) = 0;
 
+  /// getPointerToNamedFunction - This method returns the address of the
+  /// specified function by using the dlsym function call.  As such it is only
+  /// useful for resolving library symbols, not code generated symbols.
+  ///
+  /// If AbortOnFailure is false and no function with the given name is
+  /// found, this function silently returns a null pointer. Otherwise,
+  /// it prints a message to stderr and aborts.
+  ///
+  virtual void *getPointerToNamedFunction(const std::string &Name,
+                                          bool AbortOnFailure = true) = 0;
+
   /// runStaticConstructorsDestructors - This method is used to execute all of
   /// the static constructors or destructors for a program.
   ///

lib/ExecutionEngine/Interpreter/Interpreter.h

@@ -115,6 +115,12 @@ public:
   virtual GenericValue runFunction(Function *F,
                                    const std::vector<GenericValue> &ArgValues);
 
+  virtual void *getPointerToNamedFunction(const std::string &Name,
+                                          bool AbortOnFailure = true) {
+    // FIXME: not implemented.
+    return 0;
+  };
+
   /// recompileAndRelinkFunction - For the interpreter, functions are always
   /// up-to-date.
   ///

lib/ExecutionEngine/JIT/JIT.h

@@ -124,8 +124,8 @@ public:
   /// found, this function silently returns a null pointer. Otherwise,
   /// it prints a message to stderr and aborts.
   ///
-  void *getPointerToNamedFunction(const std::string &Name,
-                                  bool AbortOnFailure = true);
+  virtual void *getPointerToNamedFunction(const std::string &Name,
+                                          bool AbortOnFailure = true);
 
   // CompilationCallback - Invoked the first time that a call site is found,
   // which causes lazy compilation of the target function.

lib/ExecutionEngine/MCJIT/MCJIT.h

@@ -65,8 +65,8 @@ public:
   /// found, this function silently returns a null pointer. Otherwise,
   /// it prints a message to stderr and aborts.
   ///
-  void *getPointerToNamedFunction(const std::string &Name,
-                                  bool AbortOnFailure = true);
+  virtual void *getPointerToNamedFunction(const std::string &Name,
+                                          bool AbortOnFailure = true);
   /// @}
   /// @name (Private) Registration Interfaces
   /// @{