mman.h 1.8 KB

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  1. /* Definitions for POSIX memory map interface. Linux/x86 version.
  2. Copyright (C) 2001-2018 Free Software Foundation, Inc.
  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, see
  13. <http://www.gnu.org/licenses/>. */
  14. #ifndef _SYS_MMAN_H
  15. # error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
  16. #endif
  17. /* The following definitions basically come from the kernel headers.
  18. But the kernel header is not namespace clean. */
  19. /* Other flags. */
  20. #ifdef __USE_MISC
  21. # define MAP_32BIT 0x40 /* Only give out 32-bit addresses. */
  22. #endif
  23. /* These are Linux-specific. */
  24. #ifdef __USE_MISC
  25. # define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */
  26. # define MAP_DENYWRITE 0x00800 /* ETXTBSY */
  27. # define MAP_EXECUTABLE 0x01000 /* Mark it as an executable. */
  28. # define MAP_LOCKED 0x02000 /* Lock the mapping. */
  29. # define MAP_NORESERVE 0x04000 /* Don't check for reservations. */
  30. # define MAP_POPULATE 0x08000 /* Populate (prefault) pagetables. */
  31. # define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
  32. # define MAP_STACK 0x20000 /* Allocation is for a stack. */
  33. # define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
  34. #endif
  35. /* Include generic Linux declarations. */
  36. #include <bits/mman-linux.h>