mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
906f5fa5c8
* No more createX86Emitter() vs. createSparcEmitter() -- there can be only one * As a result, the memory management semantics must be handled according to platform -- the parameters to mmap() are particularly sensitive to the host architecture. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6527 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
//===-- VM.h - Definitions for Virtual Machine ------------------*- C++ -*-===//
|
|
//
|
|
// This file defines the top-level Virtual Machine data structure.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef VM_H
|
|
#define VM_H
|
|
|
|
#include "../ExecutionEngine.h"
|
|
#include "llvm/PassManager.h"
|
|
#include <map>
|
|
|
|
class Function;
|
|
class GlobalValue;
|
|
class Constant;
|
|
class TargetMachine;
|
|
class MachineCodeEmitter;
|
|
|
|
class VM : public ExecutionEngine {
|
|
TargetMachine &TM; // The current target we are compiling to
|
|
PassManager PM; // Passes to compile a function
|
|
MachineCodeEmitter *MCE; // MCE object
|
|
|
|
public:
|
|
VM(Module *M, TargetMachine *tm);
|
|
~VM();
|
|
|
|
/// run - Start execution with the specified function and arguments.
|
|
///
|
|
virtual int run(const std::string &FnName,
|
|
const std::vector<std::string> &Args);
|
|
|
|
/// 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();
|
|
|
|
/// runAtExitHandlers - Before exiting the program, at_exit functions must be
|
|
/// called. This method calls them.
|
|
///
|
|
static void runAtExitHandlers();
|
|
|
|
/// getPointerToFunction - This returns the address of the specified function,
|
|
/// compiling it if necessary.
|
|
void *getPointerToFunction(const Function *F);
|
|
|
|
private:
|
|
static MachineCodeEmitter *createEmitter(VM &V);
|
|
void setupPassManager();
|
|
};
|
|
|
|
#endif
|