| 1 | /* Mark end of data space to dump as pure, for GNU Emacs. |
| 2 | Copyright (C) 1985 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Emacs. |
| 5 | |
| 6 | GNU Emacs is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GNU Emacs is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Emacs; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | |
| 22 | /* How this works: |
| 23 | |
| 24 | Fdump_emacs dumps everything up to my_edata as text space (pure). |
| 25 | |
| 26 | The files of Emacs are written so as to have no initialized |
| 27 | data that can ever need to be altered except at the first startup. |
| 28 | This is so that those words can be dumped as sharable text. |
| 29 | |
| 30 | It is not possible to exercise such control over library files. |
| 31 | So it is necessary to refrain from making their data areas shared. |
| 32 | Therefore, this file is loaded following all the files of Emacs |
| 33 | but before library files. |
| 34 | As a result, the symbol my_edata indicates the point |
| 35 | in data space between data coming from Emacs and data |
| 36 | coming from libraries. |
| 37 | */ |
| 38 | |
| 39 | #include <config.h> |
| 40 | |
| 41 | char my_edata[] = "End of Emacs initialized data"; |
| 42 | |
| 43 | #ifdef WINDOWSNT |
| 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 | #endif |