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  1. //===- ELFObjHandler.h ------------------------------------------*- C++ -*-===//
  2. //
  3. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  4. // See https://llvm.org/LICENSE.txt for license information.
  5. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  6. //
  7. //===-----------------------------------------------------------------------===/
  8. /// \file
  9. /// This supports reading and writing of elf dynamic shared objects.
  10. ///
  11. //===-----------------------------------------------------------------------===/
  12.  
  13. #ifndef LLVM_INTERFACESTUB_ELFOBJHANDLER_H
  14. #define LLVM_INTERFACESTUB_ELFOBJHANDLER_H
  15.  
  16. #include "llvm/ADT/StringRef.h"
  17. #include "llvm/Support/Error.h"
  18. #include "llvm/Support/MemoryBufferRef.h"
  19. #include <memory>
  20.  
  21. namespace llvm {
  22.  
  23. namespace ifs {
  24. struct IFSStub;
  25.  
  26. /// Attempt to read a binary ELF file from a MemoryBuffer.
  27. Expected<std::unique_ptr<IFSStub>> readELFFile(MemoryBufferRef Buf);
  28.  
  29. /// Attempt to write a binary ELF stub.
  30. /// This function determines appropriate ELFType using the passed ELFTarget and
  31. /// then writes a binary ELF stub to a specified file path.
  32. ///
  33. /// @param FilePath File path for writing the ELF binary.
  34. /// @param Stub Source ELFStub to generate a binary ELF stub from.
  35. /// @param WriteIfChanged Whether or not to preserve timestamp if
  36. ///        the output stays the same.
  37. Error writeBinaryStub(StringRef FilePath, const IFSStub &Stub,
  38.                       bool WriteIfChanged = false);
  39.  
  40. } // end namespace ifs
  41. } // end namespace llvm
  42.  
  43. #endif // LLVM_INTERFACESTUB_ELFOBJHANDLER_H
  44.