src/mem-limits.h

   1 /* Includes for memory limit warnings.
   2    Copyright (C) 1990, 1993-1996, 2001-2013 Free Software Foundation,
   3    Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or
  10 (at your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifdef MSDOS
  21 #include <dpmi.h>
  22 extern int etext;
  23 #endif
  24
  25 /* Some systems need this before <sys/resource.h>.  */
  26 #include <sys/types.h>
  27
  28 #ifdef HAVE_SYS_RESOURCE_H
  29 # include <sys/time.h>
  30 # include <sys/resource.h>
  31 #else
  32 # if HAVE_SYS_VLIMIT_H
  33 #  include <sys/vlimit.h>       /* Obsolete, says glibc */
  34 # endif
  35 #endif
  36
  37 extern char *start_of_data (void) ATTRIBUTE_CONST;
  38 #if USE_LSB_TAG || UINTPTR_MAX <= VAL_MAX
  39 #define EXCEEDS_LISP_PTR(ptr) 0
  40 #else
  41 #define EXCEEDS_LISP_PTR(ptr) \
  42   (((uintptr_t) (ptr) & ~DATA_SEG_BITS) >> VALBITS)
  43 #endif