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116 lines
2.7 KiB
C
116 lines
2.7 KiB
C
/* Includes for memory limit warnings.
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Copyright (C) 1990, 1993, 1994, 1995, 1996, 2001, 2002, 2003, 2004,
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2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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#ifdef MSDOS
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#include <dpmi.h>
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extern int etext;
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#endif
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/* Some systems need this before <sys/resource.h>. */
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#include <sys/types.h>
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#ifdef _LIBC
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#include <sys/resource.h>
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#define BSD4_2 /* Tell code below to use getrlimit. */
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/* Old Linux startup code won't define __data_start. */
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extern int etext, __data_start; weak_extern (__data_start)
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#define start_of_data() (&__data_start ?: &etext)
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#else /* not _LIBC */
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#ifdef HAVE_SYS_RESOURCE_H
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# include <sys/time.h>
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# include <sys/resource.h>
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#else
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# if HAVE_SYS_VLIMIT_H
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# include <sys/vlimit.h> /* Obsolete, says glibc */
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# endif
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#endif
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#ifdef __bsdi__
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#define BSD4_2
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#endif
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#ifdef CYGWIN
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#define BSD4_2
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#endif
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#ifndef BSD4_2
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#ifndef USG
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#ifndef MSDOS
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#ifndef WINDOWSNT
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#include <sys/vlimit.h>
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#endif /* not WINDOWSNT */
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#endif /* not MSDOS */
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#endif /* not USG */
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#else /* if BSD4_2 */
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#include <sys/time.h>
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#include <sys/resource.h>
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#endif /* BSD4_2 */
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#ifdef emacs
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/* The important properties of this type are that 1) it's a pointer, and
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2) arithmetic on it should work as if the size of the object pointed
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to has a size of 1. */
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typedef POINTER_TYPE *POINTER;
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typedef unsigned long SIZE;
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#ifdef NULL
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#undef NULL
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#endif
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#define NULL ((POINTER) 0)
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extern POINTER start_of_data ();
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#if defined USE_LSB_TAG
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#define EXCEEDS_LISP_PTR(ptr) 0
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#elif defined DATA_SEG_BITS
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#define EXCEEDS_LISP_PTR(ptr) \
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(((EMACS_UINT) (ptr) & ~DATA_SEG_BITS) >> VALBITS)
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#else
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#define EXCEEDS_LISP_PTR(ptr) ((EMACS_UINT) (ptr) >> VALBITS)
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#endif
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#ifdef DATA_START
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#define start_of_data() ((char *)DATA_START)
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#endif
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#ifdef BSD_SYSTEM
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#ifndef DATA_SEG_BITS
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#ifndef DATA_START
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extern char etext;
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#define start_of_data() &etext
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#endif
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#endif
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#endif
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#else /* not emacs */
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extern char etext;
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#define start_of_data() &etext
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#endif /* not emacs */
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#endif /* not _LIBC */
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/* arch-tag: fe39244e-e54f-4208-b7aa-02556f7841c5
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(do not change this comment) */
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