mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-28 04:33:05 +00:00
5ccfef6a1d
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192031 91177308-0d34-0410-b5e6-96231b3b80d8
119 lines
4.1 KiB
C++
119 lines
4.1 KiB
C++
//===----- RemoteTargetExternal.h - LLVM out-of-process JIT execution -----===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Definition of the RemoteTargetExternal class which executes JITed code in a
|
|
// separate process from where it was built.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLI_REMOTETARGETEXTERNAL_H
|
|
#define LLI_REMOTETARGETEXTERNAL_H
|
|
|
|
#include "llvm/Config/config.h"
|
|
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
#include "llvm/Support/Memory.h"
|
|
#include <stdlib.h>
|
|
#include <string>
|
|
|
|
#include "RemoteTarget.h"
|
|
#include "RemoteTargetMessage.h"
|
|
|
|
namespace llvm {
|
|
|
|
class RemoteTargetExternal : public RemoteTarget {
|
|
public:
|
|
/// Allocate space in the remote target address space.
|
|
///
|
|
/// @param Size Amount of space, in bytes, to allocate.
|
|
/// @param Alignment Required minimum alignment for allocated space.
|
|
/// @param[out] Address Remote address of the allocated memory.
|
|
///
|
|
/// @returns False on success. On failure, ErrorMsg is updated with
|
|
/// descriptive text of the encountered error.
|
|
virtual bool allocateSpace(size_t Size,
|
|
unsigned Alignment,
|
|
uint64_t &Address);
|
|
|
|
/// Load data into the target address space.
|
|
///
|
|
/// @param Address Destination address in the target process.
|
|
/// @param Data Source address in the host process.
|
|
/// @param Size Number of bytes to copy.
|
|
///
|
|
/// @returns False on success. On failure, ErrorMsg is updated with
|
|
/// descriptive text of the encountered error.
|
|
virtual bool loadData(uint64_t Address, const void *Data, size_t Size);
|
|
|
|
/// Load code into the target address space and prepare it for execution.
|
|
///
|
|
/// @param Address Destination address in the target process.
|
|
/// @param Data Source address in the host process.
|
|
/// @param Size Number of bytes to copy.
|
|
///
|
|
/// @returns False on success. On failure, ErrorMsg is updated with
|
|
/// descriptive text of the encountered error.
|
|
virtual bool loadCode(uint64_t Address, const void *Data, size_t Size);
|
|
|
|
/// Execute code in the target process. The called function is required
|
|
/// to be of signature int "(*)(void)".
|
|
///
|
|
/// @param Address Address of the loaded function in the target
|
|
/// process.
|
|
/// @param[out] RetVal The integer return value of the called function.
|
|
///
|
|
/// @returns False on success. On failure, ErrorMsg is updated with
|
|
/// descriptive text of the encountered error.
|
|
virtual bool executeCode(uint64_t Address, int &RetVal);
|
|
|
|
/// Minimum alignment for memory permissions. Used to seperate code and
|
|
/// data regions to make sure data doesn't get marked as code or vice
|
|
/// versa.
|
|
///
|
|
/// @returns Page alignment return value. Default of 4k.
|
|
virtual unsigned getPageAlignment() { return 4096; }
|
|
|
|
/// Start the remote process.
|
|
virtual void create();
|
|
|
|
/// Terminate the remote process.
|
|
virtual void stop();
|
|
|
|
RemoteTargetExternal(std::string &Name) : RemoteTarget(), ChildName(Name) {}
|
|
virtual ~RemoteTargetExternal();
|
|
|
|
private:
|
|
std::string ChildName;
|
|
|
|
// This will get filled in as a point to an OS-specific structure.
|
|
void *ConnectionData;
|
|
|
|
void SendAllocateSpace(uint32_t Alignment, uint32_t Size);
|
|
void SendLoadSection(uint64_t Addr,
|
|
const void *Data,
|
|
uint32_t Size,
|
|
bool IsCode);
|
|
void SendExecute(uint64_t Addr);
|
|
void SendTerminate();
|
|
|
|
void Receive(LLIMessageType Msg);
|
|
void Receive(LLIMessageType Msg, int &Data);
|
|
void Receive(LLIMessageType Msg, uint64_t &Data);
|
|
|
|
int WriteBytes(const void *Data, size_t Size);
|
|
int ReadBytes(void *Data, size_t Size);
|
|
void Wait();
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLI_REMOTETARGETEXTERNAL_H
|