src/s/dgux.h

   1 /* Definitions file for GNU Emacs running on Data General's DG/UX
   2    version 4.32 and above.
   3    Copyright (C) 1985, 1986, 1991 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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  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
  37 #define SVR4
  38
  39 /* SYSTEM_TYPE should indicate the kind of system you are using.
  40  It sets the Lisp variable system-type.  */
  41
  42 #define SYSTEM_TYPE "dgux"
  43
  44 /* NOMULTIPLEJOBS should be defined if your system's shell
  45  does not have "job control" (the ability to stop a program,
  46  run some other program, then continue the first one).  */
  47
  48 /* #define NOMULTIPLEJOBS */
  49
  50 /* Emacs can read input using SIGIO and buffering characters itself,
  51    or using CBREAK mode and making C-g cause SIGINT.
  52    The choice is controlled by the variable interrupt_input.
  53    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
  54
  55    SIGIO can be used only on systems that implement it (4.2 and 4.3).
  56    CBREAK mode has two disadvantages
  57      1) At least in 4.2, it is impossible to handle the Meta key properly.
  58         I hear that in system V this problem does not exist.
  59      2) Control-G causes output to be discarded.
  60         I do not know whether this can be fixed in system V.
  61
  62    Another method of doing input is planned but not implemented.
  63    It would have Emacs fork off a separate process
  64    to read the input and send it to the true Emacs process
  65    through a pipe.
  66
  67 NOTE: On DGUX, there is a problem using INTERRUPT_INPUT: When invoked
  68 under X11 using a job control shell (csh, ksh) in the background,
  69 emacs will stop on tty output.  I suspect this is a kernel problem and
  70 have reported it and a sample program to DGC.  Meanwhile, a workaround
  71 is to define BROKEN_FIONREAD and not use INTERRUPT_INPUT.
  72
  73 -pmr@rock.concert.net
  74 */
  75
  76 #define BROKEN_FIONREAD
  77 /* #define INTERRUPT_INPUT */
  78
  79 /*
  80  *      Define HAVE_TIMEVAL if the system supports the BSD style clock values.
  81  *      Look in <sys/time.h> for a timeval structure.
  82  */
  83
  84 #define HAVE_TIMEVAL
  85
  86 /*
  87  *      Define HAVE_SELECT if the system supports the `select' system call.
  88  */
  89
  90 #define HAVE_SELECT
  91
  92 /*
  93  *      Define HAVE_SOCKETS if the system supports sockets.
  94  */
  95
  96 #define HAVE_SOCKETS
  97
  98 /*
  99  *      Define HAVE_UNIX_DOMAIN if the system supports Unix
 100  *      domain sockets.
 101  */
 102
 103 #define HAVE_UNIX_DOMAIN
 104
 105 /*
 106  *      Define HAVE_PTYS if the system supports pty devices.
 107  */
 108
 109 #define HAVE_PTYS
 110
 111 /* (Assume) we do have vfork.  */
 112
 113 #define HAVE_VFORK
 114
 115 /*
 116  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
 117  *      The 4.2 opendir, etc., library functions.
 118  */
 119
 120 /* #define NONSYSTEM_DIR_LIBRARY */
 121
 122 /* Define this symbol if your system has the functions bcopy, etc. */
 123
 124 #define BSTRING
 125
 126 /* subprocesses should be defined if you want to
 127    have code for asynchronous subprocesses
 128    (as used in M-x compile and M-x shell).
 129    This is generally OS dependent, and not supported
 130    under most USG systems. */
 131
 132 #define subprocesses
 133
 134 /* If your system uses COFF (Common Object File Format) then define the
 135    preprocessor symbol "COFF".
 136
 137    DGUX can use either COFF or ELF; the default is ELF.
 138    To compile for COFF (or BCS) use the TARGET_BINARY_INTERFACE
 139    environment variable.   */
 140
 141 #if defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET)
 142 #undef ELF
 143 #ifndef COFF
 144 #define COFF
 145 #endif  /* COFF */
 146 #else   /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 147 #undef COFF
 148 #ifndef ELF
 149 #define ELF
 150 #endif  /* ELF */
 151 #endif  /* defined(_DGUXCOFF_TARGET) || defined(_DGUXBCS_TARGET) */
 152
 153 #ifndef COFF /* People will probably find this apparently unreliable
 154                 till the NFS dumping bug is fixed.  */
 155
 156 /* It is possible to undump to ELF with DG/UX 5.4, but for revisions below
 157    5.4.1 the undump MUST be done on a local file system, or the kernel will
 158    panic.  ELF executables have the advantage of using shared libraries,
 159    while COFF executables will still work on 4.2x systems. */
 160
 161 #define UNEXEC unexelf.o
 162
 163 /* This makes sure that all segments in the executable are undumped,
 164    not just text, data, and bss.  In the case of Mxdb and shared
 165    libraries, additional information is stored in other sections.
 166    It does not hurt to have this defined if you don't use Mxdb or
 167    shared libraries.  In fact, it makes no difference. */
 168
 169 /* Necessary for shared libraries and Mxdb debugging information. */
 170 #define USG_SHARED_LIBRARIES
 171 #endif
 172
 173 /* define MAIL_USE_FLOCK if the mailer uses flock
 174    to interlock access to /usr/spool/mail/$USER.
 175    The alternative is that a lock file named
 176    /usr/spool/mail/$USER.lock.  */
 177
 178 /* #define MAIL_USE_FLOCK */
 179
 180 /* Define CLASH_DETECTION if you want lock files to be written
 181    so that Emacs can tell instantly when you try to modify
 182    a file that someone else has modified in his Emacs.  */
 183
 184 /* #define CLASH_DETECTION */
 185
 186 /* Define a replacement for the baud rate switch, since DG/UX uses a different
 187    from BSD.  */
 188
 189 #define BAUD_CONVERT    { 0, 110, 134, 150, 300, 600, 1200, 1800, 2400, \
 190                           4800, 9600, 19200, 38400 }
 191
 192 /*
 193  *      Define NLIST_STRUCT if the system has nlist.h
 194  */
 195
 196 #define NLIST_STRUCT
 197
 198 /*
 199  *      Make WM Interface Compliant.
 200  */
 201
 202 #define XICCC
 203
 204 /* Here, on a separate page, add any special hacks needed
 205    to make Emacs work on this system.  For example,
 206    you might define certain system call names that don't
 207    exist on your system, or that do different things on
 208    your system and must be used only through an encapsulation
 209    (Which you should place, by convention, in sysdep.c).  */
 210 \f
 211 /* Some compilers tend to put everything declared static
 212    into the initialized data area, which becomes pure after dumping Emacs.
 213    On these systems, you must #define static as nothing to foil this.
 214    Note that emacs carefully avoids static vars inside functions.  */
 215
 216 /* #define static */
 217
 218 /* DG/UX SPECIFIC ADDITIONS TO TEMPLATE FOLLOW: */
 219
 220 /* Use the Berkeley flavors of the library routines, instead of System V.  */
 221
 222 #define setpgrp(pid,pgrp) setpgrp2(pid,pgrp)
 223 #define getpgrp(pid) getpgrp2(pid)
 224
 225 /* Act like Berkeley. */
 226
 227 #define _setjmp(env) sigsetjmp(env,0)
 228 #define _longjmp(env,val) longjmp(env,val)
 229
 230 /* Use TERMINFO instead of termcap */
 231
 232 #define TERMINFO
 233
 234 /*
 235  *      Send signals to subprocesses using characters.
 236  *
 237  */
 238
 239 #define SIGNALS_VIA_CHARACTERS
 240
 241 /*
 242  *      Define HAVE_TERMIOS since this is POSIX,
 243  *      for terminal control.  Prevent redundant inclusion of termio.h.
 244  */
 245
 246 #define HAVE_TERMIOS
 247 #define NO_TERMIO
 248
 249 /*
 250  *      Use a Berkeley style sys/wait.h.
 251  *      This makes WIF* macros operate on structures instead of ints.
 252  */
 253
 254 #define _BSD_WAIT_FLAVOR
 255
 256 /*
 257  *      Use BSD and POSIX-style signals.  This is crucial!
 258  */
 259
 260 /* pmr now says the GNU malloc works.  */
 261 /* pmr@rock.concert.net says Emacs fails without this.  We don't know why.  */
 262 /* #define SYSTEM_MALLOC */
 263
 264 /* MAKING_MAKEFILE must be defined in "ymakefile" before including config.h */
 265 #ifndef THIS_IS_YMAKEFILE
 266
 267 /* Make sure signal.h is included so macros below don't mess with it. */
 268 /* DG/UX include files prevent multiple inclusion. */
 269
 270 #include <signal.h>
 271
 272 /* but undefine the sigmask and sigpause macros since they will get
 273    #define'd later. */
 274 #undef sigmask
 275 #undef sigpause
 276
 277 #define POSIX_SIGNALS
 278
 279 /* Define this if you use System 5 Release 4 Streams */
 280 #define open  sys_open
 281 #define close sys_close
 282 #define read  sys_read
 283 #define write sys_write
 284
 285 #define INTERRUPTIBLE_OPEN
 286 #define INTERRUPTIBLE_CLOSE
 287 /* can't hurt to define these, even though read/write should auto restart */
 288 #define INTERRUPTIBLE_IO
 289
 290 /* Can't use sys_signal because then etc/server.c would need sysdep.o.  */
 291 extern struct sigaction act, oact;
 292 #define signal(SIG,FUNC) berk_signal(SIG,FUNC)
 293
 294 #else /* THIS_IS_YMAKEFILE */
 295 /* force gcc to be used */
 296 CC=gcc
 297 #endif /* not THIS_IS_YMAKEFILE */
 298
 299 #define LD_SWITCH_SYSTEM
 300 #define START_FILES pre-crt0.o
 301 #define LIBS_SYSTEM -ldgc
 302 #define LIB_GCC /usr/lib/gcc/libgcc.a
 303
 304 #ifdef _M88KBCS_TARGET
 305 /* Karl Berry says: the environment
 306    recommended by gcc (88/open, a.k.a. m88kbcs) doesn't support some system
 307    functions, and gcc doesn't make it easy to switch environments.  */
 308 #define NO_GET_LOAD_AVG
 309 #endif
 310 \f
 311 /* definitions for xmakefile production */
 312 #ifdef COFF
 313
 314 /* Define the following to use all of the available pty's. */
 315
 316 #define PTY_ITERATION                                           \
 317   for (c = 'p'; c < 't'; c++)                                   \
 318     for (i = 0; (((c == 'p') && (i < 64)) || ((c != 'p') && (i < 16))); i++)
 319
 320 #define PTY_NAME_SPRINTF                                        \
 321       if (c == 'p')                                             \
 322         sprintf (pty_name, "/dev/pty%c%d", c, i);               \
 323       else                                                      \
 324         sprintf (pty_name, "/dev/pty%c%x", c, i);
 325
 326 #define PTY_TTY_NAME_SPRINTF                                    \
 327       if (c == 'p')                                             \
 328         sprintf (pty_name, "/dev/tty%c%d", c, i);               \
 329       else                                                      \
 330         sprintf (pty_name, "/dev/tty%c%x", c, i);
 331
 332 #define C_COMPILER \
 333   TARGET_BINARY_INTERFACE=m88kdguxcoff gcc -traditional
 334
 335 #define LINKER \
 336   TARGET_BINARY_INTERFACE=m88kdguxcoff gcc
 337
 338 #define MAKE_COMMAND \
 339   TARGET_BINARY_INTERFACE=m88kdguxcoff make
 340
 341 #define C_DEBUG_SWITCH -g
 342
 343 #else /* not COFF */
 344
 345 /* Pseudo-terminal support under SVR4 only loops to deal with errors. */
 346
 347 #define PTY_ITERATION for (i = 0; i < 1; i++)
 348
 349 /* This sets the name of the master side of the PTY. */
 350
 351 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
 352
 353 /* This sets the name of the slave side of the PTY.  On SysVr4,
 354    grantpt(3) forks a subprocess, so keep sigchld_handler() from
 355    intercepting that death.  If any child but grantpt's should die
 356    within, it should be caught after sigrelse(2). */
 357
 358 #define PTY_TTY_NAME_SPRINTF                    \
 359   {                                             \
 360     char *ptsname(), *ptyname;                  \
 361                                                 \
 362     sigblock(sigmask(SIGCLD));                          \
 363     if (grantpt(fd) == -1)                      \
 364       fatal("could not grant slave pty");       \
 365     sigunblock(sigmask(SIGCLD));                                \
 366     if (unlockpt(fd) == -1)                     \
 367       fatal("could not unlock slave pty");      \
 368     if (!(ptyname = ptsname(fd)))               \
 369       fatal ("could not enable slave pty");     \
 370     strncpy(pty_name, ptyname, sizeof(pty_name)); \
 371     pty_name[sizeof(pty_name) - 1] = 0;         \
 372   }
 373
 374 /* Push various streams modules onto a PTY channel. */
 375
 376 #define SETUP_SLAVE_PTY \
 377   if (ioctl (xforkin, I_PUSH, "ptem") == -1)    \
 378     fatal ("ioctl I_PUSH ptem", errno);         \
 379   if (ioctl (xforkin, I_PUSH, "ldterm") == -1)  \
 380     fatal ("ioctl I_PUSH ldterm", errno);       \
 381   if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \
 382     fatal ("ioctl I_PUSH ttcompat", errno);
 383
 384
 385 #define C_COMPILER \
 386   TARGET_BINARY_INTERFACE=m88kdguxelf gcc -traditional
 387
 388 #define LINKER \
 389   TARGET_BINARY_INTERFACE=m88kdguxelf gcc
 390
 391 #define MAKE_COMMAND \
 392   TARGET_BINARY_INTERFACE=m88kdguxelf make
 393
 394 #define C_DEBUG_SWITCH -g -V2 -mversion-03.00 -mstandard
 395 #endif /* COFF */
 396
 397 /* Extra stuff which probably should be someplace else but is here out
 398    of expediency. */
 399
 400 #define LIB_X11_LIB -lX11
 401
 402 /* Process groups work in the traditional BSD manner.  */
 403
 404 #define BSD_PGRPS