pthreaddef.h 1.7 KB

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  1. /* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
  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. /* Required stack pointer alignment at beginning. SSE requires 16
  16. bytes. */
  17. #define STACK_ALIGN 16
  18. /* Minimal stack size after allocating thread descriptor and guard size. */
  19. #define MINIMAL_REST_STACK 2048
  20. /* Alignment requirement for TCB. */
  21. #define TCB_ALIGNMENT 16
  22. /* Location of current stack frame. */
  23. #define CURRENT_STACK_FRAME __builtin_frame_address (0)
  24. /* XXX Until we have a better place keep the definitions here. */
  25. /* While there is no such syscall. */
  26. #define __exit_thread_inline(val) \
  27. while (1) { \
  28. if (__builtin_constant_p (val) && (val) == 0) \
  29. __asm__ __volatile__ ("xorl %%ebx, %%ebx; int $0x80" :: "a" (__NR_exit)); \
  30. else \
  31. __asm__ __volatile__ ("movl %1, %%ebx; int $0x80" \
  32. :: "a" (__NR_exit), "r" (val)); \
  33. }