src/m/ibmrs6000.h

   1 /* R2 AIX machine/system dependent defines
   2    Copyright (C) 1988, 2002, 2003, 2004, 2005,
   3                  2006 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., 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="aix3-1"  */
  26
  27 /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
  28    is the most significant byte.  */
  29
  30 #ifdef USG5_4
  31 #undef WORDS_BIG_ENDIAN
  32 #else
  33 #define WORDS_BIG_ENDIAN
  34 #endif
  35
  36 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  37  * group of arguments and treat it as an array of the arguments.  */
  38
  39 #define NO_ARG_ARRAY
  40
  41 /* Now define a symbol for the cpu type, if your compiler
  42    does not define it automatically.  */
  43
  44 #define IBMR2AIX
  45
  46 /* Use type int rather than a union, to represent Lisp_Object */
  47 /* This is desirable for most machines.  */
  48
  49 #define NO_UNION_TYPE
  50
  51 /* Define CANNOT_DUMP on machines where unexec does not work.
  52    Then the function dump-emacs will not be defined
  53    and temacs will do (load "loadup") automatically unless told otherwise.  */
  54 #ifdef USG5_4
  55 #define CANNOT_DUMP
  56 #endif
  57
  58 #ifndef UNEXEC
  59 #define UNEXEC unexaix.o
  60 #endif
  61
  62 /* Define addresses, macros, change some setup for dump */
  63
  64 #define NO_REMAP
  65
  66 #ifndef USG5_4
  67 #define TEXT_START 0x10000000
  68 #define TEXT_END 0
  69 #define DATA_START 0x20000000
  70 #define DATA_END 0
  71 #endif
  72
  73 /* The data segment in this machine always starts at address 0x20000000.
  74    An address of data cannot be stored correctly in a Lisp object;
  75    we always lose the high bits.  We must tell XPNTR to add them back.  */
  76
  77 #ifndef USG5_4
  78 #define DATA_SEG_BITS 0x20000000
  79 #else
  80 #define DATA_SEG_BITS 0
  81 #endif
  82
  83 #ifdef CANNOT_DUMP
  84 /* Define shared memory segment symbols */
  85
  86 #define PURE_SEG_BITS 0x30000000
  87
  88 /* Use shared memory.  */
  89 /* This is turned off because it does not always work.  See etc/AIX.DUMP.  */
  90 /* #define HAVE_SHM */
  91 #define SHMKEY 5305035          /* used for shared memory code segments */
  92 #endif /* CANNOT_DUMP */
  93
  94 #define N_BADMAG(x) BADMAG(x)
  95 #define N_TXTOFF(x) A_TEXTPOS(x)
  96 #define N_SYMOFF(x) A_SYMPOS(x)
  97 #define A_TEXT_OFFSET(HDR) sizeof(HDR)
  98 /* #define ADJUST_EXEC_HEADER \
  99     unexec_text_start += sizeof(hdr); \
 100     unexec_data_start = ohdr.a_dbase
 101 */
 102 #undef ADDR_CORRECT
 103 #define ADDR_CORRECT(x) ((int)(x))
 104
 105 /* Specify the font for X to use.
 106    This used to be Rom14.500; that's nice on the X server shipped with
 107    the RS/6000, but it's not available on other servers.  */
 108 #define X_DEFAULT_FONT "fixed"
 109
 110 /* Here override various assumptions in ymakefile */
 111
 112 #ifdef AIXHFT
 113 #define OBJECTS_MACHINE hftctl.o
 114 #endif
 115
 116 #ifndef USG5
 117 #define C_SWITCH_MACHINE -D_BSD
 118 #endif
 119
 120 #ifdef AIX3_2
 121 /* -lpthreads seems to be necessary for Xlib in X11R6, and should be harmless
 122    on older versions of X where it happens to exist.  */
 123 #ifdef HAVE_LIBPTHREADS
 124 #define LIBS_MACHINE -lrts -lIM -liconv -lpthreads
 125 #else
 126 /* IBM's X11R5 use -lIM and -liconv in AIX 3.2.2.  */
 127 #define LIBS_MACHINE -lrts -lIM -liconv
 128 #endif
 129 #else
 130 #ifdef USG5_4
 131 #define LIBS_MACHINE
 132 #else
 133 #define LIBS_MACHINE -lIM
 134 #endif
 135 #endif
 136
 137 #define START_FILES
 138 #define HAVE_SYSVIPC
 139 /*** BUILD 9008 - FIONREAD problem still exists in X-Windows. ***/
 140 #define BROKEN_FIONREAD
 141 /* As we define BROKEN_FIONREAD, SIGIO will be undefined in systty.h.
 142    But, on AIX, SIGAIO, SIGPTY, and SIGPOLL are defined as SIGIO,
 143    which causes compilation error at init_signals in sysdep.c.  So, we
 144    define these macros so that syssignal.h detects them and undefine
 145    SIGAIO, SIGPTY and SIGPOLL.  */
 146 #define BROKEN_SIGAIO
 147 #define BROKEN_SIGPTY
 148 #define BROKEN_SIGPOLL
 149
 150 /* Don't try to include sioctl.h or ptem.h.  */
 151 #undef NEED_SIOCTL
 152 #undef NEED_PTEM_H
 153
 154 #define ORDINARY_LINK
 155
 156 #ifndef USG5_4
 157 /* sfreed@unm.edu says add -bI:/usr/lpp/X11/bin/smt.exp for AIX 3.2.4.  */
 158 /* marc@sti.com (Marc Pawliger) says ibmrs6000.inp is needed to avoid
 159    linker error for updated X11R5 libraries, which references pthread library
 160    which most machines don't have.  We use the name .inp instead of .imp
 161    because .inp is a better convention to use in make-dist for naming
 162    random input files.  */
 163 #ifdef THIS_IS_MAKEFILE /* Don't use this in configure.  */
 164 #ifdef AIX4
 165 #define LD_SWITCH_MACHINE -Wl,-bnodelcsect
 166 #else /* not AIX4 */
 167 #ifdef HAVE_AIX_SMT_EXP
 168 #define LD_SWITCH_MACHINE -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp,-bI:$(srcdir)/m/ibmrs6000.inp,-bI:/usr/lpp/X11/bin/smt.exp
 169 #else
 170 #define LD_SWITCH_MACHINE -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp,-bI:$(srcdir)/m/ibmrs6000.inp
 171 #endif
 172 #endif /* not AIX4 */
 173 #endif /* THIS_IS_MAKEFILE */
 174
 175 /* Avoid gcc 2.7.x collect2 bug by using /bin/ld instead.  */
 176 #if __GNUC__ == 2 && __GNUC_MINOR__ == 7
 177 #define LD_SWITCH_SITE -B/bin/
 178 #endif
 179
 180 #ifndef NLIST_STRUCT
 181 /* AIX supposedly doesn't use this interface, but on the RS/6000
 182    it apparently does.  */
 183 #define NLIST_STRUCT
 184 #endif
 185 #endif /* USG5_4 */
 186
 187 /* arch-tag: 028318ee-a7ae-4a08-804d-cc1e6588d003
 188    (do not change this comment) */