src/m/next.h

   1 /* Configuration file for the NeXT machine.
   2    Copyright (C) 1990 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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20
  21 /* Say this machine is a next if not previously defined */
  22
  23 #ifndef NeXT
  24 #define NeXT
  25 #endif
  26
  27 /* The following three symbols give information on
  28    the size of various data types.  */
  29
  30 #define SHORTBITS 16            /* Number of bits in a short */
  31
  32 #define INTBITS 32              /* Number of bits in an int */
  33
  34 #define LONGBITS 32             /* Number of bits in a long */
  35
  36 /* Define how to take a char and sign-extend into an int.
  37    On machines where char is signed, this is a no-op.  */
  38
  39 #define SIGN_EXTEND_CHAR(c) (c)
  40
  41 /* Use type int rather than a union, to represent Lisp_Object */
  42
  43 #define NO_UNION_TYPE
  44
  45 /* XINT must explicitly sign-extend */
  46
  47 #define EXPLICIT_SIGN_EXTEND
  48
  49 /* Data type of load average, as read out of kmem.  */
  50
  51 #define LOAD_AVE_TYPE long
  52
  53 /* Convert that into an integer that is 100 for a load average of 1.0  */
  54
  55 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  56
  57 /* Say that the text segment of a.out includes the header;
  58    the header actually occupies the first few bytes of the text segment
  59    and is counted in hdr.a_text.  */
  60
  61 #define A_TEXT_OFFSET(HDR) sizeof (HDR)
  62
  63 /* Mask for address bits within a memory segment */
  64
  65 #define SEGSIZ 0x20000
  66 #define SEGMENT_MASK (SEGSIZ - 1)
  67
  68 #define HAVE_ALLOCA
  69
  70 #define SYSTEM_MALLOC
  71
  72 #define HAVE_UNIX_DOMAIN
  73
  74 #define LIB_X11_LIB -L/usr/lib/X11 -lX11
  75
  76 /* This avoids a problem in Xos.h when using co-Xist 3.01.  */
  77 #define X_NOT_POSIX
  78
  79 /* Conflicts in process.c between ioctl.h & tty.h use of t_foo fields */
  80
  81 #define NO_T_CHARS_DEFINES
  82
  83 /* Use our own unexec routines */
  84
  85 #define UNEXEC unexnext.o
  86
  87 /* We don't have a g library either, so override the -lg LIBS_DEBUG switch */
  88
  89 #define LIBS_DEBUG
  90
  91 /* We don't have a libgcc.a, so we can't let LIB_GCC default to -lgcc */
  92
  93 #define LIB_GCC
  94
  95 #if 0  /* ohl@chico.harvard.edu says to do this.  */
  96 /* Compile "strict bsd" to avoid warnings from include files */
  97
  98 #define C_SWITCH_MACHINE        -bsd
  99 #endif
 100
 101 /* Link this program just by running cc.  */
 102 #define ORDINARY_LINK
 103
 104 /* start_of_text isn't actually used, so make it compile without error.  */
 105 #define TEXT_START 0
 106 /* This seems to be right for end_of_text, but it may not be used anyway.  */
 107 #define TEXT_END get_etext ()
 108 /* This seems to be right for end_of_data, but it may not be used anyway.  */
 109 #define DATA_END get_edata ()
 110
 111 /* Defining KERNEL_FILE causes lossage because sys/file.h
 112    stupidly gets confused by it.  */
 113 #undef KERNEL_FILE
 114
 115 #define LD_SWITCH_MACHINE -X -noseglinkedit
 116
 117 #define environ _environ
 118
 119 #if 0 /* This is ok for NeXT system version 3.0 or above.  */
 120 /* Where to find the kernel, for load average.  */
 121 #define KERNEL_FILE "/mach"
 122 #endif
 123
 124 /* This should be true for recent NeXT systems.  At least since 3.2.  */
 125 #define HAVE_MACH_MACH_H