valloc.c 1.2 KB

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  1. /* vi: set sw=4 ts=4: */
  2. /* Allocate memory on a page boundary.
  3. Copyright (C) 1991, 1992 Free Software Foundation, Inc.
  4. This 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. This 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 this library; see the file COPYING.LIB. If
  14. not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  15. Cambridge, MA 02139, USA.
  16. The author may be reached (Email) at the address mike@@ai.mit.edu,
  17. or (US mail) as Mike Haertel c/o Free Software Foundation. */
  18. #define getpagesize __getpagesize_internal
  19. #include <stdlib.h>
  20. #include <unistd.h>
  21. #include <malloc.h>
  22. static size_t pagesize;
  23. __ptr_t valloc (size_t size)
  24. {
  25. if (pagesize == 0)
  26. pagesize = getpagesize ();
  27. return memalign(pagesize, size);
  28. }