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d427b66a JB |
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 | |
7c938215 | 8 | the Free Software Foundation; either version 2, or (at your option) |
d427b66a JB |
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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
d427b66a JB |
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 | ||
cfe8de43 AI |
39 | #include <config.h> |
40 | ||
bb8a51f5 RS |
41 | char my_edata[] = "End of Emacs initialized data"; |
42 | ||
f516a861 | 43 | #ifdef WINDOWSNT |
f516a861 GV |
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]; | |
cfe8de43 | 47 | |
4a3bf565 GV |
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; | |
cfe8de43 | 53 | #endif |