src/s/dgux.h

   1 /* Definitions file for GNU Emacs running on Data General's DG/UX
   2    version 4.32 upto and including 5.4.1.
   3    Copyright (C) 1994, 1999 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 2, 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., 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /*
  23  *      Define symbols to identify the version of Unix this is.
  24  *      Define all the symbols that apply correctly.
  25  */
  26
  27 /* #define UNIPLUS */
  28 /* #define USG5 */
  29 /* #define USG */
  30 /* #define HPUX */
  31 /* #define UMAX */
  32 /* #define BSD4_1 */
  33 #define BSD4_2
  34 #define BSD4_3
  35 #define BSD4_4
  36 #define BSD_SYSTEM
  37
  38 /* SYSTEM_TYPE should indicate the kind of system you are using.
  39  It sets the Lisp variable system-type.  */
  40
  41 #define SYSTEM_TYPE "dgux"
  42
  43 /* NOMULTIPLEJOBS should be defined if your system's shell
  44  does not have "job control" (the ability to stop a program,
  45  run some other program, then continue the first one).  */
  46
  47 /* #define NOMULTIPLEJOBS */
  48
  49 /* Emacs can read input using SIGIO and buffering characters itself,
  50    or using CBREAK mode and making C-g cause SIGINT.
  51    The choice is controlled by the variable interrupt_input.
  52    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
  53
  54    SIGIO can be used only on systems that implement it (4.2 and 4.3).
  55    CBREAK mode has two disadvantages
  56      1) At least in 4.2, it is impossible to handle the Meta key properly.
  57         I hear that in system V this problem does not exist.
  58      2) Control-G causes output to be discarded.
  59         I do not know whether this can be fixed in system V.
  60
  61    Another method of doing input is planned but not implemented.
  62    It would have Emacs fork off a separate process
  63    to read the input and send it to the true Emacs process
  64    through a pipe.
  65
  66 */
  67
  68 #define INTERRUPT_INPUT
  69
  70 /*
  71  *      Define HAVE_SOCKETS if the system supports sockets.
  72  */
  73
  74 #define HAVE_SOCKETS
  75
  76 /*
  77  *      Define HAVE_UNIX_DOMAIN if the system supports Unix
  78  *      domain sockets.
  79  */
  80
  81 #define HAVE_UNIX_DOMAIN
  82
  83 /*
  84  *      Define HAVE_PTYS if the system supports pty devices.
  85  */
  86
  87 #define HAVE_PTYS
  88
  89 /*
  90  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  91  *      The 4.2 opendir, etc., library functions.
  92  */
  93
  94 /* #define NONSYSTEM_DIR_LIBRARY */
  95
  96 /* Define this symbol if your system has the functions bcopy, etc. */
  97
  98 #define BSTRING
  99
 100 /* subprocesses should be defined if you want to
 101    have code for asynchronous subprocesses
 102    (as used in M-x compile and M-x shell).
 103    This is generally OS dependent, and not supported
 104    under most USG systems. */
 105
 106 #define subprocesses
 107
 108 /* If your system uses COFF (Common Object File Format) then define the
 109    preprocessor symbol "COFF".
 110
 111    DGUX can use either COFF or ELF; the default is ELF.
 112    To compile for COFF (or BCS) use the TARGET_BINARY_INTERFACE
 113    environment variable.   */
 114
 115 #if defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET)
 116 #undef ELF
 117 #ifndef COFF
 118 #define COFF
 119 #endif  /* COFF */
 120 #else   /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 121 #undef COFF
 122 #ifndef ELF
 123 #define ELF
 124 #endif  /* ELF */
 125 #endif  /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 126
 127 #ifndef COFF /* People will probably find this apparently unreliable
 128                 till the NFS dumping bug is fixed.  */
 129
 130 /* It is possible to undump to ELF with DG/UX 5.4, but for revisions below
 131    5.4.1 the undump MUST be done on a local file system, or the kernel will
 132    panic.  ELF executables have the advantage of using shared libraries,
 133    while COFF executables will still work on 4.2x systems. */
 134
 135 #define UNEXEC unexelf.o
 136
 137 /* This makes sure that all segments in the executable are undumped,
 138    not just text, data, and bss.  In the case of Mxdb and shared
 139    libraries, additional information is stored in other sections.
 140    It does not hurt to have this defined if you don't use Mxdb or
 141    shared libraries.  In fact, it makes no difference. */
 142
 143 /* Necessary for shared libraries and Mxdb debugging information. */
 144 #define USG_SHARED_LIBRARIES
 145 #endif
 146
 147 /* define MAIL_USE_FLOCK if the mailer uses flock
 148    to interlock access to /usr/spool/mail/$USER.
 149    The alternative is that a lock file named
 150    /usr/spool/mail/$USER.lock.  */
 151
 152 /* #define MAIL_USE_FLOCK */
 153
 154 /* Define CLASH_DETECTION if you want lock files to be written
 155    so that Emacs can tell instantly when you try to modify
 156    a file that someone else has modified in his Emacs.  */
 157
 158 /* #define CLASH_DETECTION */
 159
 160 /* Define a replacement for the baud rate switch, since DG/UX uses a different
 161    from BSD.  */
 162
 163 #define BAUD_CONVERT    { 0, 110, 134, 150, 300, 600, 1200, 1800, 2400, \
 164                           4800, 9600, 19200, 38400 }
 165
 166 /*
 167  *      Make WM Interface Compliant.
 168  */
 169
 170 #define XICCC
 171
 172 /* Here, on a separate page, add any special hacks needed
 173    to make Emacs work on this system.  For example,
 174    you might define certain system call names that don't
 175    exist on your system, or that do different things on
 176    your system and must be used only through an encapsulation
 177    (Which you should place, by convention, in sysdep.c).  */
 178 \f
 179 /* Some compilers tend to put everything declared static
 180    into the initialized data area, which becomes pure after dumping Emacs.
 181    On these systems, you must #define static as nothing to foil this.
 182    Note that emacs carefully avoids static vars inside functions.  */
 183
 184 /* #define static */
 185
 186 /* DG/UX SPECIFIC ADDITIONS TO TEMPLATE FOLLOW: */
 187
 188 /* Use the Berkeley flavors of the library routines, instead of System V.  */
 189
 190 #define setpgrp(pid,pgrp) setpgrp2(pid,pgrp)
 191 #define getpgrp(pid) getpgrp2(pid)
 192
 193 /* Act like Berkeley. */
 194
 195 #define _setjmp(env) sigsetjmp(env,0)
 196 #define _longjmp(env,val) longjmp(env,val)
 197
 198 /* Use TERMINFO instead of termcap */
 199
 200 #define TERMINFO
 201
 202 /*
 203  *      Send signals to subprocesses using characters.
 204  *
 205  */
 206
 207 #define SIGNALS_VIA_CHARACTERS
 208
 209 /*
 210  *      Define HAVE_TERMIOS since this is POSIX,
 211  *      for terminal control.  Prevent redundant inclusion of termio.h.
 212  */
 213
 214 #define HAVE_TERMIOS
 215 #define NO_TERMIO
 216
 217 /*
 218  *      Use a Berkeley style sys/wait.h.
 219  *      This makes WIF* macros operate on structures instead of ints.
 220  */
 221
 222 #define _BSD_WAIT_FLAVOR
 223
 224 /*
 225  *      Use BSD and POSIX-style signals.  This is crucial!
 226  */
 227
 228 /* #define SYSTEM_MALLOC */
 229
 230 /* MAKING_MAKEFILE must be defined in "ymakefile" before including config.h */
 231 #ifndef NOT_C_CODE
 232
 233 /* Make sure signal.h is included so macros below don't mess with it. */
 234 /* DG/UX include files prevent multiple inclusion. */
 235
 236 #include <signal.h>
 237
 238 /* but undefine the sigmask and sigpause macros since they will get
 239    #define'd later. */
 240 #undef sigmask
 241 #undef sigpause
 242
 243 #define POSIX_SIGNALS
 244
 245 #ifndef NO_DGUX_SIGNAL_REDEF
 246 /* Can't use sys_signal because then etc/server.c would need sysdep.o.  */
 247 extern struct sigaction act, oact;
 248 #define signal(SIG,FUNC) berk_signal(SIG,FUNC)
 249 #endif
 250
 251 #endif /* not NOT_C_CODE */
 252
 253 #ifndef __GNUC__
 254 #error You must use GCC to compiler Emascs on DGUX
 255 #endif
 256
 257 #define ORDINARY_LINK
 258 #define START_FILES pre-crt0.o
 259 #define LIB_GCC /usr/lib/gcc/libgcc.a
 260
 261 #ifdef _M88KBCS_TARGET
 262 /* Karl Berry says: the environment
 263    recommended by gcc (88/open, a.k.a. m88kbcs) doesn't support some system
 264    functions, and gcc doesn't make it easy to switch environments.  */
 265 #define NO_GET_LOAD_AVG
 266 #endif
 267 \f
 268 /* definitions for xmakefile production */
 269 #ifdef COFF
 270
 271 /* Define the following to use all of the available pty's. */
 272
 273 #define PTY_ITERATION                                           \
 274   for (c = 'p'; c < 't'; c++)                                   \
 275     for (i = 0; (((c == 'p') && (i < 64)) || ((c != 'p') && (i < 16))); i++)
 276
 277 #define PTY_NAME_SPRINTF                                        \
 278       if (c == 'p')                                             \
 279         sprintf (pty_name, "/dev/pty%c%d", c, i);               \
 280       else                                                      \
 281         sprintf (pty_name, "/dev/pty%c%x", c, i);
 282
 283 #define PTY_TTY_NAME_SPRINTF                                    \
 284       if (c == 'p')                                             \
 285         sprintf (pty_name, "/dev/tty%c%d", c, i);               \
 286       else                                                      \
 287         sprintf (pty_name, "/dev/tty%c%x", c, i);
 288
 289 #define C_DEBUG_SWITCH -g
 290
 291 #else /* not COFF */
 292
 293 /* We are generating ELF object format.  This makes the system more
 294    SVR4 like. */
 295
 296 #define SVR4
 297
 298 /* Pseudo-terminal support under SVR4 only loops to deal with errors. */
 299
 300 #define PTY_ITERATION for (i = 0; i < 1; i++)
 301
 302 /* This sets the name of the master side of the PTY. */
 303
 304 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
 305
 306 /* This sets the name of the slave side of the PTY.  On SysVr4,
 307    grantpt(3) forks a subprocess, so keep sigchld_handler() from
 308    intercepting that death.  If any child but grantpt's should die
 309    within, it should be caught after sigrelse(2). */
 310
 311 #define PTY_TTY_NAME_SPRINTF                    \
 312   {                                             \
 313     char *ptsname(), *ptyname;                  \
 314                                                 \
 315     sigblock(sigmask(SIGCLD));                          \
 316     if (grantpt(fd) == -1)                      \
 317       fatal("could not grant slave pty");       \
 318     sigunblock(sigmask(SIGCLD));                                \
 319     if (unlockpt(fd) == -1)                     \
 320       fatal("could not unlock slave pty");      \
 321     if (!(ptyname = ptsname(fd)))               \
 322       fatal ("could not enable slave pty");     \
 323     strncpy(pty_name, ptyname, sizeof(pty_name)); \
 324     pty_name[sizeof(pty_name) - 1] = 0;         \
 325   }
 326
 327 /* Push various streams modules onto a PTY channel. */
 328
 329 #define SETUP_SLAVE_PTY \
 330   if (ioctl (xforkin, I_PUSH, "ptem") == -1)    \
 331     fatal ("ioctl I_PUSH ptem", errno);         \
 332   if (ioctl (xforkin, I_PUSH, "ldterm") == -1)  \
 333     fatal ("ioctl I_PUSH ldterm", errno);       \
 334   if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \
 335     fatal ("ioctl I_PUSH ttcompat", errno);
 336
 337 #ifdef __GNUC__
 338 #define C_DEBUG_SWITCH -g -V2 -mversion-03.00 -mstandard
 339 #endif
 340
 341 #endif /* ELF */
 342
 343 /* Extra stuff which probably should be someplace else but is here out
 344    of expediency. */
 345
 346 #define LIB_X11_LIB -lX11
 347 #define LIB_MOTIF -lXm -lgen
 348
 349 /* Process groups work in the traditional BSD manner.  */
 350
 351 #define BSD_PGRPS