src/m/stride.h

   1 /* Definitions file for GNU Emacs running on Stride Micro System-V.2.2
   2    Copyright (C) 1985, 1986, 1999 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
   8 the Free Software Foundation; either version 2, 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, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21
  22 /* The following line tells the configuration script what sort of
  23    operating system this machine is likely to run.
  24    USUAL-OPSYS="usg5-2"  */
  25
  26 /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
  27    is the most significant byte.  */
  28
  29 #define WORDS_BIG_ENDIAN
  30
  31 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  32  * group of arguments and treat it as an array of the arguments.  */
  33
  34 #undef NO_ARG_ARRAY
  35
  36 /* Define WORD_MACHINE if addresses and such have
  37  * to be corrected before they can be used as byte counts.  */
  38
  39 #undef WORD_MACHINE
  40
  41 /* Now define a symbol for the cpu type, if your compiler
  42    does not define it automatically:
  43    vax, m68000, ns16000, pyramid, orion, tahoe, APOLLO and STRIDE
  44    are the ones defined so far.  */
  45
  46 #define m68000                  /* because the SGS compiler defines "m68k" */
  47 #ifndef STRIDE
  48 #define STRIDE
  49 #endif
  50
  51 /* Use type int rather than a union, to represent Lisp_Object */
  52 /* This is desirable for most machines.  */
  53
  54 #define NO_UNION_TYPE
  55
  56 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  57    the 24-bit bit field into an int.  In other words, if bit fields
  58    are always unsigned.
  59
  60    If you use NO_UNION_TYPE, this flag does not matter.  */
  61
  62 #define EXPLICIT_SIGN_EXTEND
  63
  64 /* Data type of load average, as read out of kmem.  */
  65
  66 #define LOAD_AVE_TYPE double
  67
  68 /* Convert that into an integer that is 100 for a load average of 1.0  */
  69
  70 #define LOAD_AVE_CVT(x) ((int) ((x) * 100.0))
  71
  72 /* Define CANNOT_DUMP on machines where unexec does not work.
  73    Then the function dump-emacs will not be defined
  74    and temacs will do (load "loadup") automatically unless told otherwise.  */
  75
  76 #undef CANNOT_DUMP
  77
  78 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  79    pure and impure space as loaded can vary, and even their
  80    relative order cannot be relied on.
  81
  82    Otherwise Emacs assumes that text space precedes data space,
  83    numerically.  */
  84
  85 #undef VIRT_ADDR_VARIES
  86
  87 /* The STRIDE system is more powerful than standard USG5.  */
  88
  89 #define HAVE_PTYS
  90 #define BSTRING
  91 #define SKTPAIR
  92 #define HAVE_SOCKETS
  93
  94 #define MAIL_USE_FLOCK
  95 #undef TERMINFO
  96 #define EXEC_MAGIC 0413
  97
  98 /* USG wins again: Foo! I can't get SIGIO to work properly on the Stride, because I'm
  99    running a System V variant, and don't have a reliable way to block SIGIO
 100    signals without losing them.  So, I've gone back to non-SIGIO mode, so
 101    please append this line to the file "stride.h":
 102  */
 103 #define BROKEN_SIGIO
 104
 105 /* Specify alignment requirement for start of text and data sections
 106    in the executable file.  */
 107
 108 #define SECTION_ALIGNMENT (getpagesize() - 1)
 109
 110 /*
 111  * UniStride has this in /lib/libc.a.
 112  */
 113 #undef NONSYSTEM_DIR_LIBRARY
 114
 115 /* Define this macro if system defines a type `union wait'.  */
 116
 117 #define HAVE_UNION_WAIT