HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| e772f7cd | 1 | /* How much read-only Lisp storage a dumped Emacs needs. |
| c6c5df7f | 2 | Copyright (C) 1993 Free Software Foundation, Inc. |
| e772f7cd JB |
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 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 19 | ||
| e4f74c7e | 20 | /* Define PURESIZE, the number of bytes of pure Lisp code to leave space for. |
| e772f7cd JB |
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 | |
| d427b66a JB |
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 | ||
| e4f74c7e RS |
30 | /* First define a measure of the amount of data we have. */ |
| 31 | ||
| 32 | #ifndef BASE_PURESIZE | |
| 4ce8eec2 | 33 | #ifdef MULTI_FRAME |
| 4efe9929 | 34 | #define BASE_PURESIZE 260000 |
| d427b66a | 35 | #else |
| 4efe9929 | 36 | #define BASE_PURESIZE 215000 |
| e4f74c7e | 37 | #endif |
| d427b66a | 38 | #endif |
| e4f74c7e RS |
39 | |
| 40 | /* Increase BASE_PURESIZE by a ratio depending on the machine's word size. */ | |
| 41 | #ifndef PURESIZE_RATIO | |
| 42 | #if VALBITS + GCTYPEBITS + 1 > 32 | |
| 43 | #define PURESIZE_RATIO 8/5 /* Don't surround with `()'. */ | |
| 44 | #else | |
| 45 | #define PURESIZE_RATIO 1 | |
| 46 | #endif | |
| 47 | #endif | |
| 48 | ||
| 49 | /* This is the actual size in bytes to allocate. */ | |
| 50 | #ifndef PURESIZE | |
| 51 | #define PURESIZE (BASE_PURESIZE * PURESIZE_RATIO) | |
| d427b66a | 52 | #endif |
| e772f7cd JB |
53 | |
| 54 | #ifdef VIRT_ADDR_VARIES | |
| 55 | ||
| 56 | /* For machines like APOLLO where text and data can go anywhere | |
| 57 | in virtual memory. */ | |
| 58 | #define CHECK_IMPURE(obj) \ | |
| 5647f979 | 59 | { extern EMACS_INT pure[]; \ |
| e772f7cd JB |
60 | if ((PNTR_COMPARISON_TYPE) XPNTR (obj) < (PNTR_COMPARISON_TYPE) ((char *) pure + PURESIZE) \ |
| 61 | && (PNTR_COMPARISON_TYPE) XPNTR (obj) >= (PNTR_COMPARISON_TYPE) pure) \ | |
| 62 | pure_write_error (); } | |
| 63 | ||
| 64 | #else /* not VIRT_ADDR_VARIES */ | |
| 65 | #ifdef PNTR_COMPARISON_TYPE | |
| 66 | ||
| 67 | /* when PNTR_COMPARISON_TYPE is not the default (unsigned int) */ | |
| 68 | #define CHECK_IMPURE(obj) \ | |
| 5647f979 | 69 | { extern EMACS_INT my_edata; \ |
| e772f7cd JB |
70 | if ((PNTR_COMPARISON_TYPE) XPNTR (obj) < (PNTR_COMPARISON_TYPE) &my_edata) \ |
| 71 | pure_write_error (); } | |
| 72 | ||
| 73 | #else /* not VIRT_ADDRESS_VARIES, not PNTR_COMPARISON_TYPE */ | |
| 74 | ||
| 75 | #define CHECK_IMPURE(obj) \ | |
| 5647f979 | 76 | { extern EMACS_INT my_edata; \ |
| e772f7cd JB |
77 | if (XPNTR (obj) < (unsigned int) &my_edata) \ |
| 78 | pure_write_error (); } | |
| 79 | ||
| 80 | #endif /* PNTR_COMPARISON_TYPE */ | |
| 81 | #endif /* VIRT_ADDRESS_VARIES */ | |
| 82 |