src/m/ibmrs6000.h

   1 /* R2 AIX machine/system dependent defines
   2    Copyright (C) 1988, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   3                  2008  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 3 of the License, or
  10 (at your option) 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.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20
  21 /* The following line tells the configuration script what sort of
  22    operating system this machine is likely to run.
  23    USUAL-OPSYS="aix3-1"  */
  24
  25 /* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
  26    is the most significant byte.  */
  27
  28 #ifdef USG5_4
  29 #undef WORDS_BIG_ENDIAN
  30 #else
  31 #define WORDS_BIG_ENDIAN
  32 #endif
  33
  34 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  35  * group of arguments and treat it as an array of the arguments.  */
  36
  37 #define NO_ARG_ARRAY
  38
  39 /* Now define a symbol for the cpu type, if your compiler
  40    does not define it automatically.  */
  41
  42 #define IBMR2AIX
  43
  44 /* Use type int rather than a union, to represent Lisp_Object */
  45 /* This is desirable for most machines.  */
  46
  47 #define NO_UNION_TYPE
  48
  49 /* Define CANNOT_DUMP on machines where unexec does not work.
  50    Then the function dump-emacs will not be defined
  51    and temacs will do (load "loadup") automatically unless told otherwise.  */
  52 #ifdef USG5_4
  53 #define CANNOT_DUMP
  54 #endif
  55
  56 #ifndef UNEXEC
  57 #define UNEXEC unexaix.o
  58 #endif
  59
  60 /* Define addresses, macros, change some setup for dump */
  61
  62 #define NO_REMAP
  63
  64 #ifndef USG5_4
  65 #define TEXT_START 0x10000000
  66 #define TEXT_END 0
  67 #define DATA_START 0x20000000
  68 #define DATA_END 0
  69 #endif
  70
  71 /* The data segment in this machine always starts at address 0x20000000.
  72    An address of data cannot be stored correctly in a Lisp object;
  73    we always lose the high bits.  We must tell XPNTR to add them back.  */
  74
  75 #ifndef USG5_4
  76 #define DATA_SEG_BITS 0x20000000
  77 #else
  78 #define DATA_SEG_BITS 0
  79 #endif
  80
  81 #ifdef CANNOT_DUMP
  82 /* Define shared memory segment symbols */
  83
  84 #define PURE_SEG_BITS 0x30000000
  85
  86 /* Use shared memory.  */
  87 /* This is turned off because it does not always work.  See etc/AIX.DUMP.  */
  88 /* #define HAVE_SHM */
  89 #define SHMKEY 5305035          /* used for shared memory code segments */
  90 #endif /* CANNOT_DUMP */
  91
  92 #define N_BADMAG(x) BADMAG(x)
  93 #define N_TXTOFF(x) A_TEXTPOS(x)
  94 #define N_SYMOFF(x) A_SYMPOS(x)
  95 #define A_TEXT_OFFSET(HDR) sizeof(HDR)
  96 /* #define ADJUST_EXEC_HEADER \
  97     unexec_text_start += sizeof(hdr); \
  98     unexec_data_start = ohdr.a_dbase
  99 */
 100 #undef ADDR_CORRECT
 101 #define ADDR_CORRECT(x) ((int)(x))
 102
 103 /* Specify the font for X to use.
 104    This used to be Rom14.500; that's nice on the X server shipped with
 105    the RS/6000, but it's not available on other servers.  */
 106 #define X_DEFAULT_FONT "fixed"
 107
 108 /* Here override various assumptions in ymakefile */
 109
 110 #ifdef AIXHFT
 111 #define OBJECTS_MACHINE hftctl.o
 112 #endif
 113
 114 #ifndef USG5
 115 #define C_SWITCH_MACHINE -D_BSD
 116 #endif
 117
 118 #ifdef AIX3_2
 119 /* -lpthreads seems to be necessary for Xlib in X11R6, and should be harmless
 120    on older versions of X where it happens to exist.  */
 121 #ifdef HAVE_LIBPTHREADS
 122 #define LIBS_MACHINE -lrts -lIM -liconv -lpthreads
 123 #else
 124 /* IBM's X11R5 use -lIM and -liconv in AIX 3.2.2.  */
 125 #define LIBS_MACHINE -lrts -lIM -liconv
 126 #endif
 127 #else
 128 #ifdef USG5_4
 129 #define LIBS_MACHINE
 130 #else
 131 #define LIBS_MACHINE -lIM
 132 #endif
 133 #endif
 134
 135 #define START_FILES
 136 #define HAVE_SYSVIPC
 137 /*** BUILD 9008 - FIONREAD problem still exists in X-Windows. ***/
 138 #define BROKEN_FIONREAD
 139 /* As we define BROKEN_FIONREAD, SIGIO will be undefined in systty.h.
 140    But, on AIX, SIGAIO, SIGPTY, and SIGPOLL are defined as SIGIO,
 141    which causes compilation error at init_signals in sysdep.c.  So, we
 142    define these macros so that syssignal.h detects them and undefine
 143    SIGAIO, SIGPTY and SIGPOLL.  */
 144 #define BROKEN_SIGAIO
 145 #define BROKEN_SIGPTY
 146 #define BROKEN_SIGPOLL
 147
 148 /* Don't try to include sioctl.h or ptem.h.  */
 149 #undef NEED_SIOCTL
 150 #undef NEED_PTEM_H
 151
 152 #define ORDINARY_LINK
 153
 154 #ifndef USG5_4
 155 /* sfreed@unm.edu says add -bI:/usr/lpp/X11/bin/smt.exp for AIX 3.2.4.  */
 156 /* marc@sti.com (Marc Pawliger) says ibmrs6000.inp is needed to avoid
 157    linker error for updated X11R5 libraries, which references pthread library
 158    which most machines don't have.  We use the name .inp instead of .imp
 159    because .inp is a better convention to use in make-dist for naming
 160    random input files.  */
 161 #ifdef THIS_IS_MAKEFILE /* Don't use this in configure.  */
 162 #ifdef AIX4
 163 #define LD_SWITCH_MACHINE -Wl,-bnodelcsect
 164 #else /* not AIX4 */
 165 #ifdef HAVE_AIX_SMT_EXP
 166 #define LD_SWITCH_MACHINE -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp,-bI:$(srcdir)/m/ibmrs6000.inp,-bI:/usr/lpp/X11/bin/smt.exp
 167 #else
 168 #define LD_SWITCH_MACHINE -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp,-bI:$(srcdir)/m/ibmrs6000.inp
 169 #endif
 170 #endif /* not AIX4 */
 171 #endif /* THIS_IS_MAKEFILE */
 172
 173 /* Avoid gcc 2.7.x collect2 bug by using /bin/ld instead.  */
 174 #if __GNUC__ == 2 && __GNUC_MINOR__ == 7
 175 #define LD_SWITCH_SITE -B/bin/
 176 #endif
 177
 178 #ifndef NLIST_STRUCT
 179 /* AIX supposedly doesn't use this interface, but on the RS/6000
 180    it apparently does.  */
 181 #define NLIST_STRUCT
 182 #endif
 183 #endif /* USG5_4 */
 184
 185 /* arch-tag: 028318ee-a7ae-4a08-804d-cc1e6588d003
 186    (do not change this comment) */