dl-fptr.h 1.4 KB

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  1. /* Function descriptors. Generic version.
  2. Copyright (C) 1995-2019 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, see
  14. <http://www.gnu.org/licenses/>. */
  15. #ifndef dl_fptr_h
  16. #define dl_fptr_h 1
  17. /* An FDESC is a function descriptor. */
  18. struct fdesc
  19. {
  20. ElfW(Addr) ip; /* code entry point */
  21. ElfW(Addr) gp; /* global pointer */
  22. };
  23. struct fdesc_table
  24. {
  25. struct fdesc_table *next;
  26. unsigned int len; /* # of entries in fdesc table */
  27. volatile unsigned int first_unused; /* index of first available entry */
  28. struct fdesc fdesc[0];
  29. };
  30. struct link_map;
  31. extern ElfW(Addr) _dl_boot_fptr_table [];
  32. extern ElfW(Addr) _dl_make_fptr (struct link_map *, const ElfW(Sym) *,
  33. ElfW(Addr));
  34. #endif /* !dl_fptr_h */