sysdep-cancel.h 1.2 KB

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  1. /* Copyright (C) 2003-2017 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
  4. License as published by the Free Software Foundation; either
  5. version 2.1 of the 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. #include <sysdep.h>
  14. #include <tls.h>
  15. #ifndef __ASSEMBLER__
  16. # include <pthreadP.h>
  17. #endif
  18. #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
  19. # define SINGLE_THREAD_P \
  20. __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
  21. header.multiple_threads) \
  22. == 0, 1)
  23. #else
  24. # define SINGLE_THREAD_P 1
  25. # define NO_CANCELLATION 1
  26. #endif
  27. #define RTLD_SINGLE_THREAD_P \
  28. __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
  29. header.multiple_threads) == 0, 1)