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51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
//===- X86JITInfo.h - X86 implementation of the JIT interface --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the X86 implementation of the TargetJITInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef X86JITINFO_H
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#define X86JITINFO_H
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#include "llvm/Target/TargetJITInfo.h"
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namespace llvm {
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class X86TargetMachine;
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class X86JITInfo : public TargetJITInfo {
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X86TargetMachine &TM;
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public:
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X86JITInfo(X86TargetMachine &tm) : TM(tm) {useGOT = 0;}
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/// replaceMachineCodeForFunction - Make it so that calling the function
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/// whose machine code is at OLD turns into a call to NEW, perhaps by
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/// overwriting OLD with a branch to NEW. This is used for self-modifying
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/// code.
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///
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virtual void replaceMachineCodeForFunction(void *Old, void *New);
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/// emitFunctionStub - Use the specified MachineCodeEmitter object to emit a
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/// small native function that simply calls the function at the specified
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/// address.
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virtual void *emitFunctionStub(void *Fn, MachineCodeEmitter &MCE);
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/// getLazyResolverFunction - Expose the lazy resolver to the JIT.
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virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
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/// relocate - Before the JIT can run a block of code that has been emitted,
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/// it must rewrite the code to contain the actual addresses of any
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/// referenced global symbols.
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virtual void relocate(void *Function, MachineRelocation *MR,
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unsigned NumRelocs, unsigned char* GOTBase);
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};
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}
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#endif
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