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068c65b22d
It's more flexible for MCJIT tasks, in addition it's provides a invalidation instruction cache for code sections which will be used before JIT code will be executed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156933 91177308-0d34-0410-b5e6-96231b3b80d8
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
//===-- MCJITMemoryManager.h - Definition for the Memory Manager ---C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_EXECUTIONENGINE_MCJITMEMORYMANAGER_H
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#define LLVM_LIB_EXECUTIONENGINE_MCJITMEMORYMANAGER_H
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#include "llvm/Module.h"
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#include "llvm/ExecutionEngine/JITMemoryManager.h"
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#include "llvm/ExecutionEngine/RuntimeDyld.h"
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#include <assert.h>
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namespace llvm {
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// The MCJIT memory manager is a layer between the standard JITMemoryManager
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// and the RuntimeDyld interface that maps objects, by name, onto their
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// matching LLVM IR counterparts in the module(s) being compiled.
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class MCJITMemoryManager : public RTDyldMemoryManager {
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virtual void anchor();
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JITMemoryManager *JMM;
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// FIXME: Multiple modules.
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Module *M;
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public:
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MCJITMemoryManager(JITMemoryManager *jmm, Module *m) :
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JMM(jmm?jmm:JITMemoryManager::CreateDefaultMemManager()), M(m) {}
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// We own the JMM, so make sure to delete it.
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~MCJITMemoryManager() { delete JMM; }
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uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
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unsigned SectionID) {
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return JMM->allocateDataSection(Size, Alignment, SectionID);
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}
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uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
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unsigned SectionID) {
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return JMM->allocateCodeSection(Size, Alignment, SectionID);
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}
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virtual void *getPointerToNamedFunction(const std::string &Name,
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bool AbortOnFailure = true) {
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return JMM->getPointerToNamedFunction(Name, AbortOnFailure);
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}
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};
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} // End llvm namespace
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#endif
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