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, 2007,
   4   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 of the License, or
  11 (at your option) 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.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21
  22 #define IRIX6_5                 /* used in m/iris4d */
  23 #include "usg5-4.h"
  24
  25 #undef sigsetmask  /* use sys_sigsetmask */
  26 #undef _longjmp /* use system versions, not conservative aliases */
  27 #undef _setjmp
  28
  29 #define SETPGRP_RELEASES_CTTY
  30
  31 #ifdef LIBS_SYSTEM
  32 #undef LIBS_SYSTEM
  33 #endif
  34
  35 #ifdef LIB_STANDARD
  36 #undef LIB_STANDARD
  37 #endif
  38
  39 #ifdef SYSTEM_TYPE
  40 #undef SYSTEM_TYPE
  41 #endif
  42 #define SYSTEM_TYPE "irix"
  43
  44 #ifdef SETUP_SLAVE_PTY
  45 #undef SETUP_SLAVE_PTY
  46 #endif
  47
  48 /* thomas@mathematik.uni-bremen.de says this is needed.  */
  49 /* Make process_send_signal work by "typing" a signal character on the pty.  */
  50 #define SIGNALS_VIA_CHARACTERS
  51
  52 /* SGI has all the fancy wait stuff, but we can't include sys/wait.h
  53    because it defines BIG_ENDIAN and LITTLE_ENDIAN (ugh!.)  Instead
  54    we'll just define WNOHANG right here.
  55    (An implicit decl is good enough for wait3.)  */
  56
  57 /* #define WNOHANG              0x1 */
  58
  59 /* No need to use sprintf to get the tty name--we get that from _getpty.  */
  60 #ifdef PTY_TTY_NAME_SPRINTF
  61 #undef PTY_TTY_NAME_SPRINTF
  62 #endif
  63 #define PTY_TTY_NAME_SPRINTF
  64 /* No need to get the pty name at all.  */
  65 #ifdef PTY_NAME_SPRINTF
  66 #undef PTY_NAME_SPRINTF
  67 #endif
  68 #define PTY_NAME_SPRINTF
  69 #ifdef emacs
  70 char *_getpty();
  71 #endif
  72 /* We need only try once to open a pty.  */
  73 #define PTY_ITERATION
  74 /* Here is how to do it.  */
  75 #define PTY_OPEN                                            \
  76 {                                                           \
  77   struct sigaction ocstat, cstat;                           \
  78   char * name;                                              \
  79   sigemptyset(&cstat.sa_mask);                              \
  80   cstat.sa_handler = SIG_DFL;                               \
  81   cstat.sa_flags = 0;                                       \
  82   sigaction(SIGCLD, &cstat, &ocstat);                       \
  83   name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0);         \
  84   sigaction(SIGCLD, &ocstat, (struct sigaction *)0);        \
  85   if (name == 0)                                            \
  86     return -1;                                              \
  87   if (fd < 0)                                               \
  88     return -1;                                              \
  89   if (fstat (fd, &stb) < 0)                                 \
  90     return -1;                                              \
  91   strcpy (pty_name, name);                                  \
  92 }
  93
  94 /* Since we use POSIX constructs in PTY_OPEN, we must force POSIX
  95    throughout. */
  96 #define POSIX_SIGNALS
  97
  98 /* Info from simon@lia.di.epfl.ch (Simon Leinen) suggests this is needed.  */
  99 #define GETPGRP_NO_ARG
 100
 101 /* Ulimit(UL_GMEMLIM) is busted...  */
 102 #define ULIMIT_BREAK_VALUE 0x14000000
 103
 104 /* Tell process_send_signal to use VSUSP instead of VSWTCH.  */
 105 #define PREFER_VSUSP
 106
 107 /* define MAIL_USE_FLOCK if the mailer uses flock
 108    to interlock access to /usr/spool/mail/$USER.
 109    The alternative is that a lock file named
 110    /usr/spool/mail/$USER.lock.  */
 111
 112 #define MAIL_USE_FLOCK
 113
 114 /* -g used not to work on Irix unless you used gas, and since gcc
 115    warns if you use it, turn off the warning.  */
 116 /* -g does now work, at least on recent Irix 6 versions with gcc 2.95;
 117     I'm not sure about Irix 5 -- fx  */
 118 #ifdef __GNUC__
 119 #define C_DEBUG_SWITCH
 120 #endif
 121
 122 #define NARROWPROTO 1
 123
 124 #define USE_MMAP_FOR_BUFFERS 1
 125
 126 /* arch-tag: ad0660e0-acf8-46ae-b866-4f3df5b1101b
 127    (do not change this comment) */
 128
 129
 130 #if _MIPS_SZLONG == 64          /* -mabi=64 (gcc) or -64 (MIPSpro) */
 131 #define _LP64                   /* lisp.h takes care of the rest */
 132 #endif /* _MIPS_SZLONG */
 133
 134 /* The only supported 32-bit configuration of GCC under IRIX6.x produces
 135    n32 MIPS ABI binaries and also supports -g. */
 136 #ifdef __GNUC__
 137 #undef C_DEBUG_SWITCH
 138 #define C_DEBUG_SWITCH -g
 139 #else
 140 /* Optimize, inaccurate debugging, increase limit on size of what's
 141    optimized.
 142
 143    This should also be applicable other than on Irix 6.5, but I don't
 144    know for which compiler versions.  -- fx */
 145 #define C_DEBUG_SWITCH -g3 -O -OPT:Olimit=3500
 146 #endif
 147
 148 #undef SA_RESTART
 149
 150 #undef TIOCSIGSEND              /* defined in usg5-4.h */
 151
 152 /* Tested on Irix 6.5.  SCM worked on earlier versions.  */
 153 #define GC_SETJMP_WORKS 1
 154 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
 155
 156 /* arch-tag: d7ad9ec2-54ad-4b2f-adf2-0070c5c63e83
 157    (do not change this comment) */