1 //===- MipsJITInfo.h - Mips Implementation of the JIT Interface -*- C++ -*-===//
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 file contains the declaration of the MipsJITInfo class.
12 //===----------------------------------------------------------------------===//
17 #include "MipsMachineFunction.h"
18 #include "llvm/CodeGen/MachineConstantPool.h"
19 #include "llvm/CodeGen/MachineFunction.h"
20 #include "llvm/CodeGen/MachineJumpTableInfo.h"
21 #include "llvm/Target/TargetJITInfo.h"
24 class MipsTargetMachine;
26 class MipsJITInfo : public TargetJITInfo {
32 explicit MipsJITInfo() :
33 IsPIC(false), IsLittleEndian(true) {}
35 /// replaceMachineCodeForFunction - Make it so that calling the function
36 /// whose machine code is at OLD turns into a call to NEW, perhaps by
37 /// overwriting OLD with a branch to NEW. This is used for self-modifying
40 virtual void replaceMachineCodeForFunction(void *Old, void *New);
42 // getStubLayout - Returns the size and alignment of the largest call stub
44 virtual StubLayout getStubLayout();
46 /// emitFunctionStub - Use the specified JITCodeEmitter object to emit a
47 /// small native function that simply calls the function at the specified
49 virtual void *emitFunctionStub(const Function *F, void *Fn,
52 /// getLazyResolverFunction - Expose the lazy resolver to the JIT.
53 virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
55 /// relocate - Before the JIT can run a block of code that has been emitted,
56 /// it must rewrite the code to contain the actual addresses of any
57 /// referenced global symbols.
58 virtual void relocate(void *Function, MachineRelocation *MR,
59 unsigned NumRelocs, unsigned char *GOTBase);
61 /// Initialize - Initialize internal stage for the function being JITted.
62 void Initialize(const MachineFunction &MF, bool isPIC,
63 bool isLittleEndian) {
65 IsLittleEndian = isLittleEndian;