class VM : public ExecutionEngine {
TargetMachine &TM; // The current target we are compiling to
- PassManager PM; // Passes to compile a function
+ FunctionPassManager PM; // Passes to compile a function
MachineCodeEmitter *MCE; // MCE object
- // FunctionRefs - A mapping between addresses that refer to unresolved
- // functions and the LLVM function object itself. This is used by the fault
- // handler to lazily patch up references...
- //
- std::map<void*, Function*> FunctionRefs;
public:
VM(Module *M, TargetMachine *tm);
~VM();
virtual int run(const std::string &FnName,
const std::vector<std::string> &Args);
- void addFunctionRef(void *Ref, Function *F) {
- FunctionRefs[Ref] = F;
- }
+ /// 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.
+ ///
+ void *getPointerToNamedFunction(const std::string &Name);
+
+ // CompilationCallback - Invoked the first time that a call site is found,
+ // which causes lazy compilation of the target function.
+ //
+ static void CompilationCallback();
- const std::string &getFunctionReferencedName(void *RefAddr);
+ /// runAtExitHandlers - Before exiting the program, at_exit functions must be
+ /// called. This method calls them.
+ ///
+ static void runAtExitHandlers();
- void *resolveFunctionReference(void *RefAddr);
+ /// getPointerToFunction - This returns the address of the specified function,
+ /// compiling it if necessary.
+ void *getPointerToFunction(Function *F);
private:
static MachineCodeEmitter *createEmitter(VM &V);
void setupPassManager();
- void *getPointerToFunction(const Function *F);
- void registerCallback();
};
#endif