include/llvm/ExecutionEngine/Orc/OrcTargetSupport.h

   1 //===-- OrcTargetSupport.h - Code to support specific targets  --*- 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 // Target specific code for Orc, e.g. callback assembly.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_EXECUTIONENGINE_ORC_ORCTARGETSUPPORT_H
  15 #define LLVM_EXECUTIONENGINE_ORC_ORCTARGETSUPPORT_H
  16
  17 #include "IndirectionUtils.h"
  18
  19 namespace llvm {
  20 namespace orc {
  21
  22 class OrcX86_64 {
  23 public:
  24   static const char *ResolverBlockName;
  25
  26   /// @brief Insert module-level inline callback asm into module M for the
  27   /// symbols managed by JITResolveCallbackHandler J.
  28   static void insertResolverBlock(Module &M,
  29                                   JITCompileCallbackManagerBase &JCBM);
  30
  31   /// @brief Get a label name from the given index.
  32   typedef std::function<std::string(unsigned)> LabelNameFtor;
  33
  34   /// @brief Insert the requested number of trampolines into the given module.
  35   /// @param M Module to insert the call block into.
  36   /// @param NumCalls Number of calls to create in the call block.
  37   /// @param StartIndex Optional argument specifying the index suffix to start
  38   ///                   with.
  39   /// @return A functor that provides the symbol name for each entry in the call
  40   ///         block.
  41   ///
  42   static LabelNameFtor insertCompileCallbackTrampolines(
  43                                                     Module &M,
  44                                                     TargetAddress TrampolineAddr,
  45                                                     unsigned NumCalls,
  46                                                     unsigned StartIndex = 0);
  47
  48 };
  49
  50 } // End namespace orc.
  51 } // End namespace llvm.
  52
  53 #endif // LLVM_EXECUTIONENGINE_ORC_ORCTARGETSUPPORT_H