src/m/hp9000s300.h

   1 /* machine description file for hp9000 series 200 or 300 on either HPUX or BSD.
   2    Copyright (C) 1985 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 /* The following line tells the configuration script what sort of
  22    operating system this machine is likely to run.
  23    USUAL-OPSYS="note"
  24
  25 NOTE-START
  26 HP 9000 series 200 or 300 (-machine=hp9000s300)
  27
  28   These machines are 68000-series CPUs running HP-UX
  29   (a derivative of sysV with some BSD features) or BSD 4.3 ported by Utah.
  30
  31   If you're running HP-UX, specify `-opsystem=hpux'.
  32   If you're running BSD, specify `-opsystem=bsd4-3'.
  33 NOTE-END */
  34
  35 /* I don't understand why we have to do this at all!  -JimB */
  36 #if 0
  37
  38 /* Do this here at the top of the file; including sys/wait.h may
  39    include <endian.h>, which defines BIG_ENDIAN, which will conflict
  40    with our definition of BIG_ENDIAN if we do this at the bottom.  */
  41 #ifndef NOT_C_CODE
  42 #ifndef NO_SHORTNAMES
  43 #include <sys/wait.h>
  44 #define WAITTYPE int
  45 #endif
  46 #define WRETCODE(w) (((w) >> 8) & 0377)
  47 #endif
  48
  49 #endif
  50
  51 /* Define NOMULTIPLEJOBS on versions of HPUX before 6.5.  */
  52
  53 /* #define NOMULTIPLEJOBS */
  54
  55 /* Define this symbol if you are running a version of HP-UX
  56    which predates version 6.01 */
  57
  58 /* #define HPUX_5 */
  59
  60 /* The following three symbols give information on
  61  the size of various data types.  */
  62
  63 #define SHORTBITS 16            /* Number of bits in a short */
  64
  65 #define INTBITS 32              /* Number of bits in an int */
  66
  67 #define LONGBITS 32             /* Number of bits in a long */
  68
  69 /* Define BIG_ENDIAN iff lowest-numbered byte in a word
  70    is the most significant byte.  */
  71 /* Under BSD, <endian.h> defines this to be 4321; rather than fight with it,
  72    we'll just give in.  Compatibility, akido style.  */
  73 #ifndef BIG_ENDIAN
  74 #define BIG_ENDIAN 4321
  75 #endif
  76
  77 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  78  * group of arguments and treat it as an array of the arguments.  */
  79
  80 /* #define NO_ARG_ARRAY */
  81
  82 /* Define WORD_MACHINE if addresses and such have
  83  * to be corrected before they can be used as byte counts.  */
  84
  85 /* #define WORD_MACHINE */
  86
  87 /* Now define a symbol for the cpu type, if your compiler
  88    does not define it automatically.  */
  89
  90 #ifndef hp9000s300
  91 #define hp9000s300
  92 #endif
  93
  94 /* Use type int rather than a union, to represent Lisp_Object */
  95 /* This is desirable for most machines.  */
  96
  97 #define NO_UNION_TYPE
  98
  99 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
 100    the 24-bit bit field into an int.  In other words, if bit fields
 101    are always unsigned.
 102
 103    If you use NO_UNION_TYPE, this flag does not matter.  */
 104
 105 #define EXPLICIT_SIGN_EXTEND
 106
 107 /* Define CANNOT_DUMP on machines where unexec does not work.
 108    Then the function dump-emacs will not be defined
 109    and temacs will do (load "loadup") automatically unless told otherwise.  */
 110
 111 /* #define CANNOT_DUMP */
 112
 113 /* Define VIRT_ADDR_VARIES if the virtual addresses of
 114    pure and impure space as loaded can vary, and even their
 115    relative order cannot be relied on.
 116
 117    Otherwise Emacs assumes that text space precedes data space,
 118    numerically.  */
 119
 120 /* #define VIRT_ADDR_VARIES */
 121 \f
 122 /* For University of Utah 4.3bsd implementation on HP300s.
 123    The #ifndef __GNUC__ definitions are required for the "standard" cc,
 124    a very old, brain-dead version of PCC. */
 125
 126 #ifdef BSD4_3
 127
 128 /* Tell crt0.c that this is an ordinary 68020.  */
 129 #undef hp9000s300
 130 #define m68000
 131
 132 #define CRT0_DUMMIES            bogus_a6,
 133
 134 #define HAVE_ALLOCA
 135
 136 #ifndef __GNUC__
 137 #define LIBS_DEBUG              /* don't have -lg that works */
 138 #define C_DEBUG_SWITCH          /* don't support -g */
 139 #endif
 140
 141 #undef LOAD_AVE_TYPE
 142 #undef LOAD_AVE_CVT
 143 #define LOAD_AVE_TYPE long
 144 #define LOAD_AVE_CVT(x) ((int) (((double) (x)) / 2048.0 * 100.0))
 145
 146 #endif /* BSD4_3 */
 147 \f
 148 #ifndef BSD4_3
 149 /* The following definitions are for HPUX only.  */
 150
 151 /* The symbol in the kernel where the load average is found
 152    is named _avenrun on this machine.  */
 153
 154 #define LDAV_SYMBOL "_avenrun"
 155
 156 /* Data type of load average, as read out of kmem.  */
 157
 158 #define LOAD_AVE_TYPE double
 159
 160 /* Convert that into an integer that is 100 for a load average of 1.0  */
 161
 162 #define LOAD_AVE_CVT(x) ((int) ((x) * 100.0))
 163
 164 /* This library is needed with -g, on the 200/300 only.  */
 165
 166 #if !defined(__GNUC__) || defined(__HPUX_ASM__)
 167 #define LIBS_DEBUG /usr/lib/end.o
 168 #endif
 169
 170 /* Need a TEXT_START.  On the HP9000/s300 that is 0.  */
 171 #ifdef __GNUC__
 172 #define TEXT_START   0
 173 #endif
 174
 175 /* The symbol FIONREAD is defined, but the feature does not work
 176    on the 200/300.  */
 177
 178 #define BROKEN_FIONREAD
 179
 180 /* In older versions of hpux, for unknown reasons, S_IFLNK is defined
 181    even though symbolic links do not exist.
 182    Make sure our conditionals based on S_IFLNK are not confused.
 183
 184    Here we assume that stat.h is included before config.h
 185    so that we can override it here.
 186
 187    Version 6 of HP-UX has symbolic links.  */
 188
 189 #ifdef HPUX_5
 190 #undef S_IFLNK
 191 #endif
 192
 193 /* Define the BSTRING functions in terms of the sysV functions.
 194    Version 6 of HP-UX supplies these in the BSD library,
 195    but that library has reported bugs in `signal'.  */
 196
 197 /* #ifdef HPUX_5 */
 198 #define bcopy(a,b,s)    memcpy (b,a,s)
 199 #define bzero(a,s)      memset (a,0,s)
 200 #define bcmp            memcmp
 201 /* #endif */
 202
 203 /* On USG systems these have different names.
 204    Version 6 of HP-UX supplies these in the BSD library,
 205    which we currently want to avoid using.  */
 206
 207 /* #ifdef HPUX_5 */
 208 #define index strchr
 209 #define rindex strrchr
 210 /* #endif */
 211
 212 /* Define C_SWITCH_MACHINE to be +X if you want the s200/300
 213  * Emacs to run on both 68010 and 68020 based hp-ux's.
 214  *
 215  * Define OLD_HP_ASSEMBLER if you have an ancient assembler
 216  *
 217  * Define HPUX_68010 if you are using the new assembler but
 218  * compiling for a s200 (upgraded) or s310.  68010 based
 219  * processor without 68881.
 220  */
 221
 222 /* These switches increase the size of some internal C compiler tables.
 223    They are required for compiling the X11 interface files. */
 224
 225 #ifndef HPUX_5
 226 #ifndef __GNUC__
 227 #define C_SWITCH_MACHINE -Wc,-Nd4000,-Ns3000
 228 #endif
 229 #endif
 230
 231 /* Define NEED_BSDTTY if you have such. */
 232
 233 #ifndef NOMULTIPLEJOBS
 234 #define NEED_BSDTTY
 235 #endif
 236
 237 #endif /* not BSD4_3 */