1/* alliant-2800.h - Alliant FX/2800 machine running Concentrix 2800. 2 Copyright (C) 1990, 2001, 2002, 2003, 2004, 2005, 3 2006, 2007 Free Software Foundation, Inc. 4 5This file is part of GNU Emacs. 6 7GNU Emacs is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GNU Emacs is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GNU Emacs; see the file COPYING. If not, write to 19the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20Boston, MA 02110-1301, USA. */ 21 22 23/* The following line tells the configuration script what sort of 24 operating system this machine is likely to run. 25 USUAL-OPSYS="bsd4-3" */ 26 27/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word 28 is the most significant byte. */ 29 30#undef WORDS_BIG_ENDIAN 31 32/* Define NO_ARG_ARRAY if you cannot take the address of the first of a 33 * group of arguments and treat it as an array of the arguments. */ 34 35#define NO_ARG_ARRAY 36 37/* Define WORD_MACHINE if addresses and such have 38 * to be corrected before they can be used as byte counts. */ 39 40#undef WORD_MACHINE 41 42/* Now define a symbol for the cpu type, if your compiler 43 does not define it automatically: 44 vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO 45 are the ones defined so far. */ 46 47#define ALLIANT 48#define ALLIANT_2800 49#define sun /* Use X support for Sun keyboard stuff. */ 50#define C_OPTIMIZE_SWITCH -Og /* No concurrent code allowed here. */ 51 52/* Use type int rather than a union, to represent Lisp_Object */ 53/* This is desirable for most machines. */ 54 55#define NO_UNION_TYPE 56 57/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend 58 the bit field into an int. In other words, if bit fields 59 are always unsigned. 60 61 If you use NO_UNION_TYPE, this flag does not matter. */ 62/* On Alliants, bitfields are unsigned. */ 63 64#define EXPLICIT_SIGN_EXTEND 65 66/* Concentrix uses a different kernel symbol for load average. */ 67 68#undef LDAV_SYMBOL /* Undo definition in s-bsd4-2.h */ 69#define LDAV_SYMBOL "_Loadavg" 70 71/* Data type of load average, as read out of kmem. */ 72 73#define LOAD_AVE_TYPE long 74 75/* Convert that into an integer that is 100 for a load average of 1.0 */ 76 77#define LOAD_AVE_CVT(x) (x * 100 / LOADAVG_SCALE) 78 79/* include <sys/param.h> for the definition of LOADAVG_SCALE, and also 80 LOADAVG_SIZE, the number of items in the Loadavg array. */ 81 82/* Define CANNOT_DUMP on machines where unexec does not work. 83 Then the function dump-emacs will not be defined 84 and temacs will do (load "loadup") automatically unless told otherwise. */ 85 86/* #define CANNOT_DUMP */ 87#define UNEXEC unexfx2800.o 88#define LIBS_MACHINE -lalliant 89 90/* Define VIRT_ADDR_VARIES if the virtual addresses of 91 pure and impure space as loaded can vary, and even their 92 relative order cannot be relied on. 93 94 Otherwise Emacs assumes that text space precedes data space, 95 numerically. */ 96 97#undef VIRT_ADDR_VARIES 98 99/* Define NO_REMAP if memory segmentation makes it not work well 100 to change the boundary between the text section and data section 101 when Emacs is dumped. If you define this, the preloaded Lisp 102 code will not be sharable; but that's better than failing completely. */ 103/* Actually, Alliant CONCENTRIX does paging "right": 104 data pages are copy-on-write, which means that the pure data areas 105 are shared automatically and remapping is not necessary. */ 106 107#define NO_REMAP 108 109/* Alliant needs special crt0.o because system version is not reentrant */ 110 111#define START_FILES crt0.o 112 113/* Alliant dependent code for dumping executing image. 114 See crt0.c code for alliant. */ 115 116#define ADJUST_EXEC_HEADER {\ 117extern int _curbrk, _setbrk;\ 118_setbrk = _curbrk;\ 119hdr.a_bss_addr = bss_start;\ 120unexec_text_start = hdr.a_text_addr;} 121 122/* POSIX Compatibility */ 123/* Use System V.4 style getdents/readdir <dirent.h> for 2.2 and up. */ 124#define SYSV_SYSTEM_DIR 125 126/* Use the K&R version of the DEFUN macro. */ 127#define USE_NONANSI_DEFUN 128 129/* arch-tag: 8ba70b15-d082-40f6-931d-14adfd7f9dbd 130 (do not change this comment) */ 131