1 /* R2 AIX machine/system dependent defines
2 Copyright (C) 1988 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
22 /* The following line tells the configuration script what sort of
23 operating system this machine is likely to run.
24 USUAL-OPSYS="aix3-1" */
26 /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
27 is the most significant byte. */
30 #undef WORDS_BIG_ENDIAN
32 #define WORDS_BIG_ENDIAN
35 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
36 * group of arguments and treat it as an array of the arguments. */
40 /* Now define a symbol for the cpu type, if your compiler
41 does not define it automatically. */
45 /* Use type int rather than a union, to represent Lisp_Object */
46 /* This is desirable for most machines. */
50 /* Define CANNOT_DUMP on machines where unexec does not work.
51 Then the function dump-emacs will not be defined
52 and temacs will do (load "loadup") automatically unless told otherwise. */
58 #define UNEXEC unexaix.o
61 /* Define addresses, macros, change some setup for dump */
66 #define TEXT_START 0x10000000
68 #define DATA_START 0x20000000
72 /* The data segment in this machine always starts at address 0x20000000.
73 An address of data cannot be stored correctly in a Lisp object;
74 we always lose the high bits. We must tell XPNTR to add them back. */
77 #define DATA_SEG_BITS 0x20000000
79 #define DATA_SEG_BITS 0
83 /* Define shared memory segment symbols */
85 #define PURE_SEG_BITS 0x30000000
87 /* Use shared memory. */
88 /* This is turned off because it does not always work. See etc/AIX.DUMP. */
89 /* #define HAVE_SHM */
90 #define SHMKEY 5305035 /* used for shared memory code segments */
91 #endif /* CANNOT_DUMP */
93 #define N_BADMAG(x) BADMAG(x)
94 #define N_TXTOFF(x) A_TEXTPOS(x)
95 #define N_SYMOFF(x) A_SYMPOS(x)
96 #define A_TEXT_OFFSET(HDR) sizeof(HDR)
97 /* #define ADJUST_EXEC_HEADER \
98 unexec_text_start += sizeof(hdr); \
99 unexec_data_start = ohdr.a_dbase
102 #define ADDR_CORRECT(x) ((int)(x))
104 /* Define C_ALLOCA if this machine does not support a true alloca
105 and the one written in C should be used instead.
106 Define HAVE_ALLOCA to say that the system provides a properly
107 working alloca function and it should be used.
108 Define neither one if an assembler-language alloca
109 in the file alloca.s should be used. */
111 /* Note: aix3-2.h defines HAVE_ALLOCA; aix3-1.h doesn't. */
114 #define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
117 /* Specify the font for X to use.
118 This used to be Rom14.500; that's nice on the X server shipped with
119 the RS/6000, but it's not available on other servers. */
120 #define X_DEFAULT_FONT "fixed"
122 /* Here override various assumptions in ymakefile */
125 #define OBJECTS_MACHINE hftctl.o
129 #define C_SWITCH_MACHINE -D_BSD
133 /* -lpthreads seems to be necessary for Xlib in X11R6, and should be harmless
134 on older versions of X where it happens to exist. */
135 #ifdef HAVE_LIBPTHREADS
136 #define LIBS_MACHINE -lrts -lIM -liconv -lpthreads
138 /* IBM's X11R5 use -lIM and -liconv in AIX 3.2.2. */
139 #define LIBS_MACHINE -lrts -lIM -liconv
145 #define LIBS_MACHINE -lIM
152 /*** BUILD 9008 - FIONREAD problem still exists in X-Windows. ***/
153 #define BROKEN_FIONREAD
155 /* Don't try to include sioctl.h or ptem.h. */
159 #define ORDINARY_LINK
162 /* sfreed@unm.edu says add -bI:/usr/lpp/X11/bin/smt.exp for AIX 3.2.4. */
163 /* marc@sti.com (Marc Pawliger) says ibmrs6000.inp is needed to avoid
164 linker error for updated X11R5 libraries, which references pthread library
165 which most machines don't have. We use the name .inp instead of .imp
166 because .inp is a better convention to use in make-dist for naming
167 random input files. */
169 #define LD_SWITCH_MACHINE -Wl,-bnodelcsect
171 #ifdef HAVE_AIX_SMT_EXP
172 #define LD_SWITCH_MACHINE -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp,-bI:$(srcdir)/m/ibmrs6000.inp,-bI:/usr/lpp/X11/bin/smt.exp
174 #define LD_SWITCH_MACHINE -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp,-bI:$(srcdir)/m/ibmrs6000.inp
176 #endif /* not AIX4 */
178 /* Avoid gcc 2.7.x collect2 bug by using /bin/ld instead. */
179 #if __GNUC__ == 2 && __GNUC_MINOR__ == 7
180 #define LD_SWITCH_SITE -B/bin/
183 /* AIX supposedly doesn't use this interface, but on the RS/6000
184 it apparently does. */