src/s/irix6-5.h

   1 /* Definitions file for GNU Emacs running on Silicon Graphics Irix system 6.5.
   2
   3 Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   4   2007, 2008  Free Software Foundation, Inc.
   5
   6 This file is part of GNU Emacs.
   7
   8 GNU Emacs is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GNU Emacs is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU Emacs; see the file COPYING.  If not, write to
  20 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21 Boston, MA 02110-1301, USA.  */
  22
  23
  24 #define IRIX6_5                 /* used in m/iris4d */
  25 #include "usg5-4.h"
  26
  27 #undef sigsetmask  /* use sys_sigsetmask */
  28 #undef _longjmp /* use system versions, not conservative aliases */
  29 #undef _setjmp
  30
  31 #define SETPGRP_RELEASES_CTTY
  32
  33 #ifdef LIBS_SYSTEM
  34 #undef LIBS_SYSTEM
  35 #endif
  36
  37 #ifdef LIB_STANDARD
  38 #undef LIB_STANDARD
  39 #endif
  40
  41 #ifdef SYSTEM_TYPE
  42 #undef SYSTEM_TYPE
  43 #endif
  44 #define SYSTEM_TYPE "irix"
  45
  46 #ifdef SETUP_SLAVE_PTY
  47 #undef SETUP_SLAVE_PTY
  48 #endif
  49
  50 /* thomas@mathematik.uni-bremen.de says this is needed.  */
  51 /* Make process_send_signal work by "typing" a signal character on the pty.  */
  52 #define SIGNALS_VIA_CHARACTERS
  53
  54 /* SGI has all the fancy wait stuff, but we can't include sys/wait.h
  55    because it defines BIG_ENDIAN and LITTLE_ENDIAN (ugh!.)  Instead
  56    we'll just define WNOHANG right here.
  57    (An implicit decl is good enough for wait3.)  */
  58
  59 /* #define WNOHANG              0x1 */
  60
  61 /* No need to use sprintf to get the tty name--we get that from _getpty.  */
  62 #ifdef PTY_TTY_NAME_SPRINTF
  63 #undef PTY_TTY_NAME_SPRINTF
  64 #endif
  65 #define PTY_TTY_NAME_SPRINTF
  66 /* No need to get the pty name at all.  */
  67 #ifdef PTY_NAME_SPRINTF
  68 #undef PTY_NAME_SPRINTF
  69 #endif
  70 #define PTY_NAME_SPRINTF
  71 #ifdef emacs
  72 char *_getpty();
  73 #endif
  74 /* We need only try once to open a pty.  */
  75 #define PTY_ITERATION
  76 /* Here is how to do it.  */
  77 #define PTY_OPEN                                            \
  78 {                                                           \
  79   struct sigaction ocstat, cstat;                           \
  80   char * name;                                              \
  81   sigemptyset(&cstat.sa_mask);                              \
  82   cstat.sa_handler = SIG_DFL;                               \
  83   cstat.sa_flags = 0;                                       \
  84   sigaction(SIGCLD, &cstat, &ocstat);                       \
  85   name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0);         \
  86   sigaction(SIGCLD, &ocstat, (struct sigaction *)0);        \
  87   if (name == 0)                                            \
  88     return -1;                                              \
  89   if (fd < 0)                                               \
  90     return -1;                                              \
  91   if (fstat (fd, &stb) < 0)                                 \
  92     return -1;                                              \
  93   strcpy (pty_name, name);                                  \
  94 }
  95
  96 /* Since we use POSIX constructs in PTY_OPEN, we must force POSIX
  97    throughout. */
  98 #define POSIX_SIGNALS
  99
 100 /* Info from simon@lia.di.epfl.ch (Simon Leinen) suggests this is needed.  */
 101 #define GETPGRP_NO_ARG
 102
 103 /* Ulimit(UL_GMEMLIM) is busted...  */
 104 #define ULIMIT_BREAK_VALUE 0x14000000
 105
 106 /* Tell process_send_signal to use VSUSP instead of VSWTCH.  */
 107 #define PREFER_VSUSP
 108
 109 /* define MAIL_USE_FLOCK if the mailer uses flock
 110    to interlock access to /usr/spool/mail/$USER.
 111    The alternative is that a lock file named
 112    /usr/spool/mail/$USER.lock.  */
 113
 114 #define MAIL_USE_FLOCK
 115
 116 /* -g used not to work on Irix unless you used gas, and since gcc
 117    warns if you use it, turn off the warning.  */
 118 /* -g does now work, at least on recent Irix 6 versions with gcc 2.95;
 119     I'm not sure about Irix 5 -- fx  */
 120 #ifdef __GNUC__
 121 #define C_DEBUG_SWITCH
 122 #endif
 123
 124 #define NARROWPROTO 1
 125
 126 #define USE_MMAP_FOR_BUFFERS 1
 127
 128 /* arch-tag: ad0660e0-acf8-46ae-b866-4f3df5b1101b
 129    (do not change this comment) */
 130
 131
 132 #if _MIPS_SZLONG == 64          /* -mabi=64 (gcc) or -64 (MIPSpro) */
 133 #define _LP64                   /* lisp.h takes care of the rest */
 134 #endif /* _MIPS_SZLONG */
 135
 136 /* The only supported 32-bit configuration of GCC under IRIX6.x produces
 137    n32 MIPS ABI binaries and also supports -g. */
 138 #ifdef __GNUC__
 139 #undef C_DEBUG_SWITCH
 140 #define C_DEBUG_SWITCH -g
 141 #else
 142 /* Optimize, inaccurate debugging, increase limit on size of what's
 143    optimized.
 144
 145    This should also be applicable other than on Irix 6.5, but I don't
 146    know for which compiler versions.  -- fx */
 147 #define C_DEBUG_SWITCH -g3 -O -OPT:Olimit=3500
 148 #endif
 149
 150 #undef SA_RESTART
 151
 152 #undef TIOCSIGSEND              /* defined in usg5-4.h */
 153
 154 /* Tested on Irix 6.5.  SCM worked on earlier versions.  */
 155 #define GC_SETJMP_WORKS 1
 156 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
 157
 158 /* arch-tag: d7ad9ec2-54ad-4b2f-adf2-0070c5c63e83
 159    (do not change this comment) */