mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-13 04:30:23 +00:00
f010c464a1
Again, tools are trickier to pick the main module header for than library source files. I've started to follow the pattern of using LLVMContext.h when it is included as a stub for program source files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169252 91177308-0d34-0410-b5e6-96231b3b80d8
102 lines
3.5 KiB
C++
102 lines
3.5 KiB
C++
//===- RemoteTarget.h - LLVM Remote 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 RemoteTarget class which executes JITed code in a
|
|
// separate address range from where it was built.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef REMOTEPROCESS_H
|
|
#define REMOTEPROCESS_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>
|
|
|
|
namespace llvm {
|
|
|
|
class RemoteTarget {
|
|
std::string ErrorMsg;
|
|
bool IsRunning;
|
|
|
|
SmallVector<sys::MemoryBlock, 16> Allocations;
|
|
|
|
public:
|
|
StringRef getErrorMsg() const { return ErrorMsg; }
|
|
|
|
/// 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.
|
|
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.
|
|
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.
|
|
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.
|
|
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.
|
|
unsigned getPageAlignment() { return 4096; }
|
|
|
|
/// Start the remote process.
|
|
void create();
|
|
|
|
/// Terminate the remote process.
|
|
void stop();
|
|
|
|
RemoteTarget() : ErrorMsg(""), IsRunning(false) {}
|
|
~RemoteTarget() { if (IsRunning) stop(); }
|
|
|
|
private:
|
|
// Main processing function for the remote target process. Command messages
|
|
// are received on file descriptor CmdFD and responses come back on OutFD.
|
|
static void doRemoteTargeting(int CmdFD, int OutFD);
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|