1 //==- SparcJITInfo.h - Sparc Implementation of the JIT Interface -*- C++ -*-==// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains the declaration of the SparcJITInfo class. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef SPARCJITINFO_H 15 #define SPARCJITINFO_H 16 17 #include "llvm/CodeGen/MachineConstantPool.h" 18 #include "llvm/CodeGen/MachineFunction.h" 19 #include "llvm/Target/TargetJITInfo.h" 20 21 namespace llvm { 22 class SparcTargetMachine; 23 24 class SparcJITInfo : public TargetJITInfo { 25 26 bool IsPIC; 27 28 public: 29 explicit SparcJITInfo() 30 : IsPIC(false) {} 31 32 /// replaceMachineCodeForFunction - Make it so that calling the function 33 /// whose machine code is at OLD turns into a call to NEW, perhaps by 34 /// overwriting OLD with a branch to NEW. This is used for self-modifying 35 /// code. 36 /// 37 void replaceMachineCodeForFunction(void *Old, void *New) override; 38 39 // getStubLayout - Returns the size and alignment of the largest call stub 40 // on Sparc. 41 StubLayout getStubLayout() override; 42 43 44 /// emitFunctionStub - Use the specified JITCodeEmitter object to emit a 45 /// small native function that simply calls the function at the specified 46 /// address. 47 void *emitFunctionStub(const Function *F, void *Fn, 48 JITCodeEmitter &JCE) override; 49 50 /// getLazyResolverFunction - Expose the lazy resolver to the JIT. 51 LazyResolverFn getLazyResolverFunction(JITCompilerFn) override; 52 53 /// relocate - Before the JIT can run a block of code that has been emitted, 54 /// it must rewrite the code to contain the actual addresses of any 55 /// referenced global symbols. 56 void relocate(void *Function, MachineRelocation *MR, 57 unsigned NumRelocs, unsigned char *GOTBase) override; 58 59 /// Initialize - Initialize internal stage for the function being JITted. 60 void Initialize(const MachineFunction &MF, bool isPIC) { 61 IsPIC = isPIC; 62 } 63 64 }; 65 } 66 67 #endif 68
