1 //===- RecordingMemoryManager.h - LLI MCJIT recording memory manager ------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This memory manager allocates local storage and keeps a record of each
11 // allocation. Iterators are provided for all data and code allocations.
13 //===----------------------------------------------------------------------===//
15 #ifndef RECORDINGMEMORYMANAGER_H
16 #define RECORDINGMEMORYMANAGER_H
18 #include "llvm/ADT/SmallVector.h"
19 #include "llvm/ExecutionEngine/JITMemoryManager.h"
20 #include "llvm/Support/ErrorHandling.h"
21 #include "llvm/Support/Memory.h"
26 class RecordingMemoryManager : public JITMemoryManager {
28 typedef std::pair<sys::MemoryBlock, unsigned> Allocation;
31 SmallVector<Allocation, 16> AllocatedDataMem;
32 SmallVector<Allocation, 16> AllocatedCodeMem;
35 RecordingMemoryManager() {}
36 virtual ~RecordingMemoryManager() {}
38 typedef SmallVectorImpl<Allocation>::const_iterator const_data_iterator;
39 typedef SmallVectorImpl<Allocation>::const_iterator const_code_iterator;
41 const_data_iterator data_begin() const { return AllocatedDataMem.begin(); }
42 const_data_iterator data_end() const { return AllocatedDataMem.end(); }
43 const_code_iterator code_begin() const { return AllocatedCodeMem.begin(); }
44 const_code_iterator code_end() const { return AllocatedCodeMem.end(); }
46 uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
49 uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
52 void *getPointerToNamedFunction(const std::string &Name,
53 bool AbortOnFailure = true);
54 // The following obsolete JITMemoryManager calls are stubbed out for
56 void setMemoryWritable();
57 void setMemoryExecutable();
58 void setPoisonMemory(bool poison);
60 uint8_t *getGOTBase() const;
61 uint8_t *startFunctionBody(const Function *F, uintptr_t &ActualSize);
62 uint8_t *allocateStub(const GlobalValue* F, unsigned StubSize,
64 void endFunctionBody(const Function *F, uint8_t *FunctionStart,
65 uint8_t *FunctionEnd);
66 uint8_t *allocateSpace(intptr_t Size, unsigned Alignment);
67 uint8_t *allocateGlobal(uintptr_t Size, unsigned Alignment);
68 void deallocateFunctionBody(void *Body);
69 uint8_t* startExceptionTable(const Function* F, uintptr_t &ActualSize);
70 void endExceptionTable(const Function *F, uint8_t *TableStart,
71 uint8_t *TableEnd, uint8_t* FrameRegister);
72 void deallocateExceptionTable(void *ET);
76 } // end namespace llvm