setjmp.h 1.4 KB

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  1. /* Copyright (C) 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, write to the Free
  13. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  14. 02111-1307 USA. */
  15. /* Define the machine-dependent type `jmp_buf'. Intel 386 version. */
  16. #ifndef _SETJMP_H
  17. # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
  18. #endif
  19. #if defined __USE_MISC || defined _ASM
  20. # define JB_BX 0
  21. # define JB_SI 1
  22. # define JB_DI 2
  23. # define JB_BP 3
  24. # define JB_SP 4
  25. # define JB_PC 5
  26. # define JB_SIZE 24
  27. #endif
  28. #ifndef _ASM
  29. typedef int __jmp_buf[6];
  30. #endif
  31. /* Test if longjmp to JMPBUF would unwind the frame
  32. containing a local variable at ADDRESS. */
  33. #define _JMPBUF_UNWINDS(jmpbuf, address) \
  34. ((void *) (address) < (void *) (jmpbuf)[JB_SP])