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//===- RecordingMemoryManager.h - LLI MCJIT recording memory manager ------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This memory manager allocates local storage and keeps a record of each
// allocation. Iterators are provided for all data and code allocations.
//
//===----------------------------------------------------------------------===//
#ifndef RECORDINGMEMORYMANAGER_H
#define RECORDINGMEMORYMANAGER_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/ExecutionEngine/JITMemoryManager.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Memory.h"
#include <utility>
namespace llvm {
class RecordingMemoryManager : public JITMemoryManager {
public:
typedef std::pair<sys::MemoryBlock, unsigned> Allocation;
private:
SmallVector<Allocation, 16> AllocatedDataMem;
SmallVector<Allocation, 16> AllocatedCodeMem;
// FIXME: This is part of a work around to keep sections near one another
// when MCJIT performs relocations after code emission but before
// the generated code is moved to the remote target.
sys::MemoryBlock Near;
sys::MemoryBlock allocateSection(uintptr_t Size);
public:
RecordingMemoryManager() {}
virtual ~RecordingMemoryManager();
typedef SmallVectorImpl<Allocation>::const_iterator const_data_iterator;
typedef SmallVectorImpl<Allocation>::const_iterator const_code_iterator;
const_data_iterator data_begin() const { return AllocatedDataMem.begin(); }
const_data_iterator data_end() const { return AllocatedDataMem.end(); }
const_code_iterator code_begin() const { return AllocatedCodeMem.begin(); }
const_code_iterator code_end() const { return AllocatedCodeMem.end(); }
uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
unsigned SectionID);
uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
unsigned SectionID, bool IsReadOnly);
void *getPointerToNamedFunction(const std::string &Name,
bool AbortOnFailure = true);
bool applyPermissions(std::string *ErrMsg) { return false; }
// The following obsolete JITMemoryManager calls are stubbed out for
// this model.
void setMemoryWritable();
void setMemoryExecutable();
void setPoisonMemory(bool poison);
void AllocateGOT();
uint8_t *getGOTBase() const;
uint8_t *startFunctionBody(const Function *F, uintptr_t &ActualSize);
uint8_t *allocateStub(const GlobalValue* F, unsigned StubSize,
unsigned Alignment);
void endFunctionBody(const Function *F, uint8_t *FunctionStart,
uint8_t *FunctionEnd);
uint8_t *allocateSpace(intptr_t Size, unsigned Alignment);
uint8_t *allocateGlobal(uintptr_t Size, unsigned Alignment);
void deallocateFunctionBody(void *Body);
uint8_t* startExceptionTable(const Function* F, uintptr_t &ActualSize);
void endExceptionTable(const Function *F, uint8_t *TableStart,
uint8_t *TableEnd, uint8_t* FrameRegister);
void deallocateExceptionTable(void *ET);
};
} // end namespace llvm
#endif
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