lib/Target/ARM/ARMJITInfo.h

   1 //===- ARMJITInfo.h - ARM 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 ARMJITInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef ARMJITINFO_H
  15 #define ARMJITINFO_H
  16
  17 #include "llvm/Target/TargetJITInfo.h"
  18
  19 namespace llvm {
  20   class ARMTargetMachine;
  21
  22   class ARMJITInfo : public TargetJITInfo {
  23     ARMTargetMachine &TM;
  24   public:
  25     ARMJITInfo(ARMTargetMachine &tm) : TM(tm) {useGOT = 0;}
  26
  27     /// replaceMachineCodeForFunction - Make it so that calling the function
  28     /// whose machine code is at OLD turns into a call to NEW, perhaps by
  29     /// overwriting OLD with a branch to NEW.  This is used for self-modifying
  30     /// code.
  31     ///
  32     virtual void replaceMachineCodeForFunction(void *Old, void *New);
  33
  34     /// emitFunctionStub - Use the specified MachineCodeEmitter object to emit a
  35     /// small native function that simply calls the function at the specified
  36     /// address.
  37     virtual void *emitFunctionStub(void *Fn, MachineCodeEmitter &MCE);
  38
  39     /// getLazyResolverFunction - Expose the lazy resolver to the JIT.
  40     virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
  41
  42     /// relocate - Before the JIT can run a block of code that has been emitted,
  43     /// it must rewrite the code to contain the actual addresses of any
  44     /// referenced global symbols.
  45     virtual void relocate(void *Function, MachineRelocation *MR,
  46                           unsigned NumRelocs, unsigned char* GOTBase);
  47   };
  48 }
  49
  50 #endif