sigstack.h 1.6 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455
  1. /* sigstack, sigaltstack definitions.
  2. Copyright (C) 1998 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 Library General Public License as
  6. published by the Free Software Foundation; either version 2 of the
  7. 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. Library General Public License for more details.
  12. You should have received a copy of the GNU Library General Public
  13. License along with the GNU C Library; see the file COPYING.LIB. If not,
  14. write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  15. Boston, MA 02111-1307, USA. */
  16. #ifndef _SIGNAL_H
  17. # error "Never include this file directly. Use <signal.h> instead"
  18. #endif
  19. /* Structure describing a signal stack (obsolete). */
  20. struct sigstack
  21. {
  22. __ptr_t ss_sp; /* Signal stack pointer. */
  23. int ss_onstack; /* Nonzero if executing on this stack. */
  24. };
  25. /* Possible values for `ss_flags.'. */
  26. enum
  27. {
  28. SS_ONSTACK = 1,
  29. #define SS_ONSTACK SS_ONSTACK
  30. SS_DISABLE
  31. #define SS_DISABLE SS_DISABLE
  32. };
  33. /* Minimum stack size for a signal handler. */
  34. #define MINSIGSTKSZ 2048
  35. /* System default stack size. */
  36. #define SIGSTKSZ 8192
  37. /* Alternate, preferred interface. */
  38. typedef struct sigaltstack
  39. {
  40. __ptr_t ss_sp;
  41. int ss_flags;
  42. size_t ss_size;
  43. } stack_t;