elf_util.h 2.8 KB

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  1. /*
  2. * Copyright (C) 2011-2017 Intel Corporation. All rights reserved.
  3. *
  4. * Redistribution and use in source and binary forms, with or without
  5. * modification, are permitted provided that the following conditions
  6. * are met:
  7. *
  8. * * Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. * * Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in
  12. * the documentation and/or other materials provided with the
  13. * distribution.
  14. * * Neither the name of Intel Corporation nor the names of its
  15. * contributors may be used to endorse or promote products derived
  16. * from this software without specific prior written permission.
  17. *
  18. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29. *
  30. */
  31. #ifndef _ELF_UTIL_H_
  32. #define _ELF_UTIL_H_
  33. #include "elfheader/elf_common.h"
  34. #include "elfheader/elfstructs.h"
  35. #ifndef __ELF_NATIVE_CLASS
  36. # if defined(_M_X64) || defined(__x86_64) || defined(__amd64)
  37. # include <limits.h> /* for UINT_MAX */
  38. # define __ELF_NATIVE_CLASS 64
  39. # else
  40. # define __ELF_NATIVE_CLASS 32
  41. # endif
  42. #endif
  43. #if __ELF_NATIVE_CLASS == 64
  44. # define Rel Rela
  45. # define RTS_DT_REL DT_RELA
  46. # define RTS_DT_RELSZ DT_RELASZ
  47. # define RTS_DT_RELENT DT_RELAENT
  48. # else
  49. # define RTS_DT_REL DT_REL
  50. # define RTS_DT_RELSZ DT_RELSZ
  51. # define RTS_DT_RELENT DT_RELENT
  52. #endif
  53. /* We use this macro to refer to ELF types independent of the native wordsize.
  54. `ElfW(TYPE)' is used in place of `Elf32_TYPE' or `Elf64_TYPE'. */
  55. #define ElfW(type) _ElfW (Elf, __ELF_NATIVE_CLASS, type)
  56. /* We use this macro to refer to ELF macro constants. For example,
  57. `ELFW(R_SYM)' is used in place of `ELF32_R_SYM' or `ELF64_R_SYM'. */
  58. #define ELFW(type) _ElfW (ELF, __ELF_NATIVE_CLASS, type)
  59. #define _ElfW(e,w,t) _ElfW_1 (e, w, _##t)
  60. #define _ElfW_1(e,w,t) e##w##t
  61. /* GNU header uses `JUMP_SLOT' while `JMP_SLOT' in FreeBSD. */
  62. #define R_X86_64_JUMP_SLOT R_X86_64_JMP_SLOT
  63. #endif