src/m/hp9000s300.h

   1 /* machine description file for hp9000 series 200 or 300 on either HPUX or BSD.
   2    Copyright (C) 1985, 2001, 2002, 2003, 2004, 2005,
   3                  2006, 2007, 2008  Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs; see the file COPYING.  If not, write to
  19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 Boston, 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="note"
  26
  27 NOTE-START
  28 HP 9000 series 200 or 300 (-machine=hp9000s300)
  29
  30   These machines are 68000-series CPUs running HP-UX
  31   (a derivative of sysV with some BSD features) or BSD 4.3 ported by Utah.
  32
  33   If you're running HP-UX, specify `-opsystem=hpux'.
  34   If you're running BSD, specify `-opsystem=bsd4-3'.
  35 NOTE-END */
  36
  37 /* I don't understand why we have to do this at all!  -JimB */
  38
  39 /* Define NOMULTIPLEJOBS on versions of HPUX before 6.5.  */
  40
  41 /* #define NOMULTIPLEJOBS */
  42
  43 /* Define this symbol if you are running a version of HP-UX
  44    which predates version 6.01 */
  45
  46 /* #define HPUX_5 */
  47
  48 /* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
  49    is the most significant byte.  */
  50
  51 #define WORDS_BIG_ENDIAN
  52
  53 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  54  * group of arguments and treat it as an array of the arguments.  */
  55
  56 /* #define NO_ARG_ARRAY */
  57
  58 /* Define WORD_MACHINE if addresses and such have
  59  * to be corrected before they can be used as byte counts.  */
  60
  61 /* #define WORD_MACHINE */
  62
  63 /* Now define a symbol for the cpu type, if your compiler
  64    does not define it automatically.  */
  65
  66 #ifndef hp9000s300
  67 #define hp9000s300
  68 #endif
  69
  70 /* Use type int rather than a union, to represent Lisp_Object */
  71 /* This is desirable for most machines.  */
  72
  73 #define NO_UNION_TYPE
  74
  75 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  76    the 24-bit bit field into an int.  In other words, if bit fields
  77    are always unsigned.
  78
  79    If you use NO_UNION_TYPE, this flag does not matter.  */
  80
  81 #define EXPLICIT_SIGN_EXTEND
  82
  83 /* Define CANNOT_DUMP on machines where unexec does not work.
  84    Then the function dump-emacs will not be defined
  85    and temacs will do (load "loadup") automatically unless told otherwise.  */
  86
  87 /* #define CANNOT_DUMP */
  88
  89 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  90    pure and impure space as loaded can vary, and even their
  91    relative order cannot be relied on.
  92
  93    Otherwise Emacs assumes that text space precedes data space,
  94    numerically.  */
  95
  96 /* #define VIRT_ADDR_VARIES */
  97 \f
  98 /* For University of Utah 4.3bsd implementation on HP300s.
  99    The #ifndef __GNUC__ definitions are required for the "standard" cc,
 100    a very old, brain-dead version of PCC. */
 101
 102 #ifdef BSD4_3
 103
 104 /* Tell crt0.c that this is an ordinary 68020.  */
 105 #undef hp9000s300
 106 #define m68000
 107
 108 #define CRT0_DUMMIES            bogus_a6,
 109
 110 #ifndef __GNUC__
 111 #define LIBS_DEBUG              /* don't have -lg that works */
 112 #define C_DEBUG_SWITCH          /* don't support -g */
 113 #endif
 114
 115 #undef LOAD_AVE_TYPE
 116 #undef LOAD_AVE_CVT
 117 #define LOAD_AVE_TYPE long
 118 #define LOAD_AVE_CVT(x) ((int) (((double) (x)) / 2048.0 * 100.0))
 119
 120 #endif /* BSD4_3 */
 121 \f
 122 #ifndef BSD4_3
 123 /* The following definitions are for HPUX only.  */
 124
 125 /* The symbol in the kernel where the load average is found
 126    is named _avenrun on this machine.  */
 127
 128 #define LDAV_SYMBOL "_avenrun"
 129
 130 /* Data type of load average, as read out of kmem.  */
 131
 132 #define LOAD_AVE_TYPE double
 133
 134 /* Convert that into an integer that is 100 for a load average of 1.0  */
 135
 136 #define LOAD_AVE_CVT(x) ((int) ((x) * 100.0))
 137
 138 /* This library is needed with -g, on the 200/300 only.  */
 139
 140 #if !defined(__GNUC__) || defined(__HPUX_ASM__)
 141 #define LIBS_DEBUG /usr/lib/end.o
 142 #endif
 143
 144 /* Need a TEXT_START.  On the HP9000/s300 that is 0.  */
 145 #ifdef __GNUC__
 146 #define TEXT_START   0
 147 #endif
 148
 149 /* The symbol FIONREAD is defined, but the feature does not work
 150    on the 200/300.  */
 151
 152 #define BROKEN_FIONREAD
 153
 154 /* In older versions of hpux, for unknown reasons, S_IFLNK is defined
 155    even though symbolic links do not exist.
 156    Make sure our conditionals based on S_IFLNK are not confused.
 157
 158    Here we assume that stat.h is included before config.h
 159    so that we can override it here.
 160
 161    Version 6 of HP-UX has symbolic links.  */
 162
 163 #ifdef HPUX_5
 164 #undef S_IFLNK
 165 #endif
 166
 167 /* Define the BSTRING functions in terms of the sysV functions.
 168    Version 6 of HP-UX supplies these in the BSD library,
 169    but that library has reported bugs in `signal'.  */
 170
 171 /* #ifdef HPUX_5 */
 172 #define bcopy(a,b,s)    memcpy (b,a,s)
 173 #define bzero(a,s)      memset (a,0,s)
 174 #define bcmp            memcmp
 175 /* #endif */
 176
 177 /* On USG systems these have different names.
 178    Version 6 of HP-UX supplies these in the BSD library,
 179    which we currently want to avoid using.  */
 180
 181 /* #ifdef HPUX_5 */
 182 #define index strchr
 183 #define rindex strrchr
 184 /* #endif */
 185
 186 /* Define C_SWITCH_MACHINE to be +X if you want the s200/300
 187  * Emacs to run on both 68010 and 68020 based hp-ux's.
 188  *
 189  * Define OLD_HP_ASSEMBLER if you have an ancient assembler
 190  *
 191  * Define HPUX_68010 if you are using the new assembler but
 192  * compiling for a s200 (upgraded) or s310.  68010 based
 193  * processor without 68881.
 194  */
 195
 196 /* These switches increase the size of some internal C compiler tables.
 197    They are required for compiling the X11 interface files. */
 198
 199 #ifndef HPUX_5
 200 #ifndef __GNUC__
 201 #define C_SWITCH_MACHINE -Wc,-Nd4000,-Ns3000
 202 #endif
 203 #endif
 204
 205 /* Define NEED_BSDTTY if you have such. */
 206
 207 #ifndef NOMULTIPLEJOBS
 208 #define NEED_BSDTTY
 209 #endif
 210
 211 #endif /* not BSD4_3 */
 212
 213 /* arch-tag: 6e0001a5-ed62-4258-9235-204348f6bdb9
 214    (do not change this comment) */