1: /* Mark end of data space to dump as pure, for GNU Emacs.
    2:    Copyright (C) 1985, 2001, 2002, 2003, 2004, 2005,
    3:                  2006, 2007  Free Software Foundation, 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 2, or (at your option)
   10: 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; see the file COPYING.  If not, write to
   19: the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   20: Boston, MA 02110-1301, USA.  */
   21: 
   22: 
   23: /* How this works:
   24: 
   25:  Fdump_emacs dumps everything up to my_edata as text space (pure).
   26: 
   27:  The files of Emacs are written so as to have no initialized
   28:  data that can ever need to be altered except at the first startup.
   29:  This is so that those words can be dumped as sharable text.
   30: 
   31:  It is not possible to exercise such control over library files.
   32:  So it is necessary to refrain from making their data areas shared.
   33:  Therefore, this file is loaded following all the files of Emacs
   34:  but before library files.
   35:  As a result, the symbol my_edata indicates the point
   36:  in data space between data coming from Emacs and data
   37:  coming from libraries.
   38: */
   39: 
   40: #include <config.h>
   41: 
   42: char my_edata[] = "End of Emacs initialized data";
   43: 
   44: /* Help unexec locate the end of the .bss area used by Emacs (which
   45:    isn't always a separate section in NT executables).  */
   46: char my_endbss[1];
   47: 
   48: /* The Alpha MSVC linker globally segregates all static and public bss
   49:    data, so we must take both into account to determine the true extent
   50:    of the bss area used by Emacs.  */
   51: static char _my_endbss[1];
   52: char * my_endbss_static = _my_endbss;
   53: 
   54: /* arch-tag: 67e81ab4-e14f-44b2-8875-c0c12252223e
   55:    (do not change this comment) */