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Streamlined memory manager hierarchy for MCJIT and RuntimeDyld.

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Patch by Ashok Thirumurthi

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167192 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Kaylor
2012-11-01 00:46:04 +00:00
parent 08e712b9ff
commit 647d6d7d3b
7 changed files with 21 additions and 101 deletions
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31
include/llvm/ExecutionEngine/JITMemoryManager.h
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@@ -10,7 +10,9 @@
#ifndef LLVM_EXECUTION_ENGINE_JIT_MEMMANAGER_H
#define LLVM_EXECUTION_ENGINE_JIT_MEMMANAGER_H
#include "llvm/ExecutionEngine/RuntimeDyld.h"
#include "llvm/Support/DataTypes.h"
#include <string>
namespace llvm {
@@ -22,7 +24,7 @@ namespace llvm {
/// memory for the code generated by the JIT. This can be reimplemented by
/// clients that have a strong desire to control how the layout of JIT'd memory
/// works.
class JITMemoryManager {
class JITMemoryManager : public RTDyldMemoryManager {
protected:
bool HasGOT;
@@ -47,17 +49,6 @@ public:
/// debugging, and may be turned on by default in debug mode.
virtual void setPoisonMemory(bool poison) = 0;
/// getPointerToNamedFunction - This method returns the address of the
/// specified function. As such it is only useful for resolving library
/// symbols, not code generated symbols.
///
/// If AbortOnFailure is false and no function with the given name is
/// found, this function silently returns a null pointer. Otherwise,
/// it prints a message to stderr and aborts.
///
virtual void *getPointerToNamedFunction(const std::string &Name,
bool AbortOnFailure = true) = 0;
//===--------------------------------------------------------------------===//
// Global Offset Table Management
//===--------------------------------------------------------------------===//
@@ -112,22 +103,6 @@ public:
virtual void endFunctionBody(const Function *F, uint8_t *FunctionStart,
uint8_t *FunctionEnd) = 0;
/// allocateCodeSection - Allocate a memory block of (at least) the given
/// size suitable for executable code. The SectionID is a unique identifier
/// assigned by the JIT and passed through to the memory manager for
/// the instance class to use if it needs to communicate to the JIT about
/// a given section after the fact.
virtual uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
unsigned SectionID) = 0;
/// allocateDataSection - Allocate a memory block of (at least) the given
/// size suitable for data. The SectionID is a unique identifier
/// assigned by the JIT and passed through to the memory manager for
/// the instance class to use if it needs to communicate to the JIT about
/// a given section after the fact.
virtual uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
unsigned SectionID) = 0;
/// allocateSpace - Allocate a memory block of the given size. This method
/// cannot be called between calls to startFunctionBody and endFunctionBody.
virtual uint8_t *allocateSpace(intptr_t Size, unsigned Alignment) = 0;