(Vafter_change_functions, Vbefore_change_functions): Declared.
[bpt/emacs.git] / src / puresize.h
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e772f7cd 1/* How much read-only Lisp storage a dumped Emacs needs.
c6c5df7f 2 Copyright (C) 1993 Free Software Foundation, Inc.
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3
4This file is part of GNU Emacs.
5
6GNU Emacs is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 1, or (at your option)
9any later version.
10
11GNU Emacs is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU Emacs; see the file COPYING. If not, write to
18the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
19
20/* # bytes of pure Lisp code to leave space for.
21
22 At one point, this was defined in config.h, meaning that changing
23 PURESIZE would make Make recompile all of Emacs. But only a few
d427b66a 24 files actually use PURESIZE, so we split it out to its own .h file.
e772f7cd 25
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26 Make sure to include this file after config.h, since that tells us
27 whether we are running X windows, which tells us how much pure
28 storage to allocate. */
29
30#ifndef PURESIZE
4ce8eec2 31#ifdef MULTI_FRAME
6f1111aa 32#define PURESIZE 230000
d427b66a 33#else
9f2ccd7b 34#define PURESIZE 190000
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35#endif
36#endif
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37
38#ifdef VIRT_ADDR_VARIES
39
40/* For machines like APOLLO where text and data can go anywhere
41 in virtual memory. */
42#define CHECK_IMPURE(obj) \
43 { extern int pure[]; \
44 if ((PNTR_COMPARISON_TYPE) XPNTR (obj) < (PNTR_COMPARISON_TYPE) ((char *) pure + PURESIZE) \
45 && (PNTR_COMPARISON_TYPE) XPNTR (obj) >= (PNTR_COMPARISON_TYPE) pure) \
46 pure_write_error (); }
47
48#else /* not VIRT_ADDR_VARIES */
49#ifdef PNTR_COMPARISON_TYPE
50
51/* when PNTR_COMPARISON_TYPE is not the default (unsigned int) */
52#define CHECK_IMPURE(obj) \
53 { extern int my_edata; \
54 if ((PNTR_COMPARISON_TYPE) XPNTR (obj) < (PNTR_COMPARISON_TYPE) &my_edata) \
55 pure_write_error (); }
56
57#else /* not VIRT_ADDRESS_VARIES, not PNTR_COMPARISON_TYPE */
58
59#define CHECK_IMPURE(obj) \
60 { extern int my_edata; \
61 if (XPNTR (obj) < (unsigned int) &my_edata) \
62 pure_write_error (); }
63
64#endif /* PNTR_COMPARISON_TYPE */
65#endif /* VIRT_ADDRESS_VARIES */
66