src/llvm/lib/ExecutionEngine/MCJIT/ObjectBuffer.h

   1 //===--- ObjectBuffer.h - Utility class to wrap object memory ---*- 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 declares a wrapper class to hold the memory into which an
  11 // object will be generated.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef LLVM_EXECUTIONENGINE_OBJECTBUFFER_H
  16 #define LLVM_EXECUTIONENGINE_OBJECTBUFFER_H
  17
  18 #include "llvm/ADT/SmallVector.h"
  19 #include "llvm/Support/MemoryBuffer.h"
  20 #include "llvm/Support/raw_ostream.h"
  21
  22 namespace llvm {
  23
  24 class ObjectMemoryBuffer : public MemoryBuffer {
  25 public:
  26   template <unsigned N>
  27   ObjectMemoryBuffer(SmallVector<char, N> SV)
  28     : SV(SV), BufferName("<in-memory object>") {
  29     init(this->SV.begin(), this->SV.end(), false);
  30   }
  31
  32   template <unsigned N>
  33   ObjectMemoryBuffer(SmallVector<char, N> SV, StringRef Name)
  34     : SV(SV), BufferName(Name) {
  35     init(this->SV.begin(), this->SV.end(), false);
  36   }
  37   const char* getBufferIdentifier() const override { return BufferName.c_str(); }
  38
  39   BufferKind getBufferKind() const override { return MemoryBuffer_Malloc; }
  40
  41 private:
  42   SmallVector<char, 4096> SV;
  43   std::string BufferName;
  44 };
  45
  46 } // namespace llvm
  47
  48 #endif