dl-tls.h 1.4 KB

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  1. /* Copyright (C) 2005-2016 Free Software Foundation, Inc.
  2. The GNU C Library is free software; you can redistribute it and/or
  3. modify it under the terms of the GNU Lesser General Public License as
  4. published by the Free Software Foundation; either version 2.1 of the
  5. License, or (at your option) any later version.
  6. The GNU C Library is distributed in the hope that it will be useful,
  7. but WITHOUT ANY WARRANTY; without even the implied warranty of
  8. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  9. Lesser General Public License for more details.
  10. You should have received a copy of the GNU Lesser General Public
  11. License along with the GNU C Library; if not, see
  12. <http://www.gnu.org/licenses/>. */
  13. /* Type used for the representation of TLS information in the GOT. */
  14. typedef struct
  15. {
  16. unsigned long int ti_module;
  17. unsigned long int ti_offset;
  18. } tls_index;
  19. /* The thread pointer points to the first static TLS block. */
  20. #define TLS_TP_OFFSET 0
  21. /* Dynamic thread vector pointers point 0x800 past the start of each
  22. TLS block. */
  23. #define TLS_DTV_OFFSET 0x800
  24. extern void *__tls_get_addr (tls_index *ti);
  25. #define GET_ADDR_OFFSET (ti->ti_offset + TLS_DTV_OFFSET)
  26. #define __TLS_GET_ADDR(__ti) (__tls_get_addr (__ti) - TLS_DTV_OFFSET)
  27. /* Value used for dtv entries for which the allocation is delayed. */
  28. #define TLS_DTV_UNALLOCATED ((void *) -1l)