Mercurial > hg > xemacs-beta
annotate src/m/arm.h @ 5478:7a86df313e0e
Update CHANGES-beta for 21.5.31.
| author | Stephen J. Turnbull <stephen@xemacs.org> |
|---|---|
| date | Fri, 29 Apr 2011 20:33:47 +0900 |
| parents | 308d34e9f07d |
| children | 1f0b15040456 |
| rev | line source |
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| 321 | 1 /* Machine description file for digital/intel arm/strongarm |
| 2 Copyright (C) 1987 Free Software Foundation, Inc. | |
| 3 | |
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4 This file is part of XEmacs. |
| 321 | 5 |
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6 XEmacs is free software: you can redistribute it and/or modify it |
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7 under the terms of the GNU General Public License as published by the |
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8 Free Software Foundation, either version 3 of the License, or (at your |
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9 option) any later version. |
| 321 | 10 |
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 for more details. |
| 321 | 15 |
| 16 You should have received a copy of the GNU General Public License | |
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17 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 321 | 18 |
| 19 /* Synched up with: FSF 19.31. */ | |
| 20 | |
| 21 /* Now define a symbol for the cpu type, if your compiler | |
| 22 does not define it automatically: | |
| 23 Ones defined so far include vax, m68000, ns16000, pyramid, | |
| 24 orion, tahoe, APOLLO and many others */ | |
| 25 | |
| 26 #ifndef arm | |
| 27 #define arm | |
| 28 #endif | |
| 29 | |
| 30 /* crt0.c, if it is used, should use the i386-bsd style of entry. | |
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31 with no extra dummy args. On USG, NO_REMAP says this isn't used. */ |
| 321 | 32 |
| 33 /* Mly 16-Jan-96 16:38:32: this is part of a prototype -- same bug present in | |
| 34 other m*.h files */ | |
| 35 #define CRT0_DUMMIES int bogus_fp, | |
| 36 | |
| 37 /* crt0.c should define a symbol `start' and do .globl with a dot. */ | |
| 38 | |
| 39 #define DOT_GLOBAL_START | |
| 40 | |
| 41 #ifdef USG5_4 /* Older USG systems do not support the load average. */ | |
| 42 /* Data type of load average, as read out of kmem. */ | |
| 43 | |
| 44 #define LOAD_AVE_TYPE long | |
| 45 | |
| 46 /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
| 47 /* This is totally uncalibrated. */ | |
| 48 | |
| 49 | |
| 50 /* FSHIFT and FSCALE are defined in param.h, but are required by | |
| 51 LOAD_AVE_CVT, so they need to be defined here. */ | |
| 52 | |
| 53 #ifndef FSHIFT | |
| 54 #define FSHIFT 8 /* bits to right of fixed binary point */ | |
| 55 #endif | |
| 56 | |
| 57 #ifndef FSCALE | |
| 58 #define FSCALE (1<<FSHIFT) | |
| 59 #endif | |
| 60 | |
| 61 #define LOAD_AVE_CVT(x) ((int) (((double) (x)) * 100.0 / FSCALE)) | |
| 62 #endif | |
| 63 | |
| 64 | |
| 65 /* this brings in alloca() if we're using cc */ | |
| 66 #ifdef USG | |
| 67 #define NO_REMAP | |
| 68 #define TEXT_START 0 | |
| 69 #endif /* USG */ | |
| 70 | |
| 442 | 71 #ifdef WIN32_NATIVE |
| 321 | 72 #define DATA_START get_data_start () |
| 73 #endif | |
| 74 | |
| 75 #ifdef linux | |
| 76 /* libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared library, */ | |
| 77 /* we cannot get the maximum address for brk */ | |
| 78 #define ULIMIT_BREAK_VALUE (32*1024*1024) | |
| 79 | |
| 80 #define SEGMENT_MASK ((SEGMENT_SIZE)-1) | |
| 81 #endif |