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  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 #if 0
  39
  40 /* Do this here at the top of the file; including sys/wait.h may
  41    include <endian.h>, which defines BIG_ENDIAN, which will conflict
  42    with our definition of BIG_ENDIAN if we do this at the bottom.  */
  43 #ifndef NOT_C_CODE
  44 #ifndef NO_SHORTNAMES
  45 #include <sys/wait.h>
  46 #define WAITTYPE int
  47 #endif
  48 #define WRETCODE(w) (((w) >> 8) & 0377)
  49 #endif
  50
  51 #endif
  52
  53 /* Define NOMULTIPLEJOBS on versions of HPUX before 6.5.  */
  54
  55 /* #define NOMULTIPLEJOBS */
  56
  57 /* Define this symbol if you are running a version of HP-UX
  58    which predates version 6.01 */
  59
  60 /* #define HPUX_5 */
  61
  62 /* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
  63    is the most significant byte.  */
  64
  65 #define WORDS_BIG_ENDIAN
  66
  67 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  68  * group of arguments and treat it as an array of the arguments.  */
  69
  70 /* #define NO_ARG_ARRAY */
  71
  72 /* Define WORD_MACHINE if addresses and such have
  73  * to be corrected before they can be used as byte counts.  */
  74
  75 /* #define WORD_MACHINE */
  76
  77 /* Now define a symbol for the cpu type, if your compiler
  78    does not define it automatically.  */
  79
  80 #ifndef hp9000s300
  81 #define hp9000s300
  82 #endif
  83
  84 /* Use type int rather than a union, to represent Lisp_Object */
  85 /* This is desirable for most machines.  */
  86
  87 #define NO_UNION_TYPE
  88
  89 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  90    the 24-bit bit field into an int.  In other words, if bit fields
  91    are always unsigned.
  92
  93    If you use NO_UNION_TYPE, this flag does not matter.  */
  94
  95 #define EXPLICIT_SIGN_EXTEND
  96
  97 /* Define CANNOT_DUMP on machines where unexec does not work.
  98    Then the function dump-emacs will not be defined
  99    and temacs will do (load "loadup") automatically unless told otherwise.  */
 100
 101 /* #define CANNOT_DUMP */
 102
 103 /* Define VIRT_ADDR_VARIES if the virtual addresses of
 104    pure and impure space as loaded can vary, and even their
 105    relative order cannot be relied on.
 106
 107    Otherwise Emacs assumes that text space precedes data space,
 108    numerically.  */
 109
 110 /* #define VIRT_ADDR_VARIES */
 111 \f
 112 /* For University of Utah 4.3bsd implementation on HP300s.
 113    The #ifndef __GNUC__ definitions are required for the "standard" cc,
 114    a very old, brain-dead version of PCC. */
 115
 116 #ifdef BSD4_3
 117
 118 /* Tell crt0.c that this is an ordinary 68020.  */
 119 #undef hp9000s300
 120 #define m68000
 121
 122 #define CRT0_DUMMIES            bogus_a6,
 123
 124 #ifndef __GNUC__
 125 #define LIBS_DEBUG              /* don't have -lg that works */
 126 #define C_DEBUG_SWITCH          /* don't support -g */
 127 #endif
 128
 129 #undef LOAD_AVE_TYPE
 130 #undef LOAD_AVE_CVT
 131 #define LOAD_AVE_TYPE long
 132 #define LOAD_AVE_CVT(x) ((int) (((double) (x)) / 2048.0 * 100.0))
 133
 134 #endif /* BSD4_3 */
 135 \f
 136 #ifndef BSD4_3
 137 /* The following definitions are for HPUX only.  */
 138
 139 /* The symbol in the kernel where the load average is found
 140    is named _avenrun on this machine.  */
 141
 142 #define LDAV_SYMBOL "_avenrun"
 143
 144 /* Data type of load average, as read out of kmem.  */
 145
 146 #define LOAD_AVE_TYPE double
 147
 148 /* Convert that into an integer that is 100 for a load average of 1.0  */
 149
 150 #define LOAD_AVE_CVT(x) ((int) ((x) * 100.0))
 151
 152 /* This library is needed with -g, on the 200/300 only.  */
 153
 154 #if !defined(__GNUC__) || defined(__HPUX_ASM__)
 155 #define LIBS_DEBUG /usr/lib/end.o
 156 #endif
 157
 158 /* Need a TEXT_START.  On the HP9000/s300 that is 0.  */
 159 #ifdef __GNUC__
 160 #define TEXT_START   0
 161 #endif
 162
 163 /* The symbol FIONREAD is defined, but the feature does not work
 164    on the 200/300.  */
 165
 166 #define BROKEN_FIONREAD
 167
 168 /* In older versions of hpux, for unknown reasons, S_IFLNK is defined
 169    even though symbolic links do not exist.
 170    Make sure our conditionals based on S_IFLNK are not confused.
 171
 172    Here we assume that stat.h is included before config.h
 173    so that we can override it here.
 174
 175    Version 6 of HP-UX has symbolic links.  */
 176
 177 #ifdef HPUX_5
 178 #undef S_IFLNK
 179 #endif
 180
 181 /* Define the BSTRING functions in terms of the sysV functions.
 182    Version 6 of HP-UX supplies these in the BSD library,
 183    but that library has reported bugs in `signal'.  */
 184
 185 /* #ifdef HPUX_5 */
 186 #define bcopy(a,b,s)    memcpy (b,a,s)
 187 #define bzero(a,s)      memset (a,0,s)
 188 #define bcmp            memcmp
 189 /* #endif */
 190
 191 /* On USG systems these have different names.
 192    Version 6 of HP-UX supplies these in the BSD library,
 193    which we currently want to avoid using.  */
 194
 195 /* #ifdef HPUX_5 */
 196 #define index strchr
 197 #define rindex strrchr
 198 /* #endif */
 199
 200 /* Define C_SWITCH_MACHINE to be +X if you want the s200/300
 201  * Emacs to run on both 68010 and 68020 based hp-ux's.
 202  *
 203  * Define OLD_HP_ASSEMBLER if you have an ancient assembler
 204  *
 205  * Define HPUX_68010 if you are using the new assembler but
 206  * compiling for a s200 (upgraded) or s310.  68010 based
 207  * processor without 68881.
 208  */
 209
 210 /* These switches increase the size of some internal C compiler tables.
 211    They are required for compiling the X11 interface files. */
 212
 213 #ifndef HPUX_5
 214 #ifndef __GNUC__
 215 #define C_SWITCH_MACHINE -Wc,-Nd4000,-Ns3000
 216 #endif
 217 #endif
 218
 219 /* Define NEED_BSDTTY if you have such. */
 220
 221 #ifndef NOMULTIPLEJOBS
 222 #define NEED_BSDTTY
 223 #endif
 224
 225 #endif /* not BSD4_3 */
 226
 227 /* arch-tag: 6e0001a5-ed62-4258-9235-204348f6bdb9
 228    (do not change this comment) */