1 /* machine description file for ibm ps/2 aix386.
2 Copyright (C) 1989 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 XEmacs; 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. */
21 /* Synched up with: FSF 19.31. */
23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run.
28 Use -opsystem=usg5-3 on AIX 1.2.
29 -opsystem=usg5-2-2 should work on either AIX 1.1 or 1.2, but may not
30 work with certain new X window managers, and may be suboptimal.
33 /* Now define a symbol for the cpu type, if your compiler
34 does not define it automatically:
35 Ones defined so far include vax, m68000, ns16000, pyramid,
36 orion, tahoe, APOLLO and many others */
43 /* crt0.c, if it is used, should use the i386-bsd style of entry.
44 with no extra dummy args. On USG and XENIX,
45 NO_REMAP says this isn't used. */
47 #define CRT0_DUMMIES bogus_fp,
49 /* crt0.c should define a symbol `start' and do .globl with a dot. */
51 #define DOT_GLOBAL_START
53 /* USG systems do not actually support the load average,
54 so disable it for them. */
56 /* Define CANNOT_DUMP on machines where unexec does not work.
57 Then the function dump-emacs will not be defined
58 and temacs will do (load "loadup") automatically unless told otherwise. */
60 /* #define CANNOT_DUMP */
62 /* Define addresses, macros, change some setup for dump */
67 #define TEXT_START 0x00000000
69 #define TEXT_START 0x00400000
71 #define DATA_START 0x00800000
76 #if 0 /* I refuse to promulgate a recommendation that would make
77 users unable to debug - RMS. */
78 /* delete the following line to foil optimization, enable debugging */
79 #define C_DEBUG_SWITCH "-O"
82 /* AIX utimes allegedly causes SIGSEGV. */
83 #undef HAVE_UTIMES /* override configuration decision */
85 /* Data type of load average, as read out of kmem. */
87 #define LOAD_AVE_TYPE long /* For AIX (sysV) */
89 /* Convert that into an integer that is 100 for a load average of 1.0 */
91 #define LOAD_AVE_CVT(x) (int) (((double) (x)/65535.0) * 100.0)
93 /* This page was added in June 1990. It may be incorrect for some versions
94 of aix, so delete it if it causes trouble. */
96 /* AIX386 has BSD4.3 PTYs */
100 /* #define SKTPAIR */ /* SKTPAIR works, but what is advantage over pipes? */
102 /* Specify the font for X to use. */
104 #define X_DEFAULT_FONT "8x13"
107 /* sioctl.h should not be included, says bytheway@cs.utah.edu. */
109 /* I'm guessing that that means it doesn't want ptem.h either. */
112 /* Here override various assumptions in ymakefile */
114 /* Define C_ALLOCA if this machine does not support a true alloca
115 and the one written in C should be used instead.
116 Define HAVE_ALLOCA to say that the system provides a properly
117 working alloca function and it should be used.
118 Define neither one if an assembler-language alloca
119 in the file alloca.s should be used. */
123 #define alloca(n) __builtin_alloca(n)
125 #define LIB_STANDARD "/usr/local/lib/gcc-gnulib -lbsd -lrts -lc "
127 /* -g fails to work, so it is omitted. */
128 /* tranle says that -fstrength-reduce does not help. */
129 #define C_DEBUG_SWITCH
132 #define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
133 #define LIBS_MACHINE "-lbsd -lrts"
136 #define OBJECTS_MACHINE "hftctl.o"
137 #define LD_SWITCH_MACHINE "-T0x00400000 -K -e start"
138 #define LIBS_DEBUG /* no -lg on aix ps/2 */
142 #undef LD_SWITCH_MACHINE
143 #define LD_SWITCH_MACHINE "-T0x0 -K -e start"
145 /* Things defined in s-usg5-3.h that need to be overridden. */
146 #undef BROKEN_TIOCGETC
147 #undef BROKEN_TIOCGWINSZ
153 /* Shared libraries are supported in a patch release of ps/2 1.2.1.
154 If the system has them, the user can turn them on, and this code
155 will make them work. */
156 #define USG_SHARED_LIBRARIES /* Assume that by 19's release everyone has this. */
158 #ifdef USG_SHARED_LIBRARIES
159 #define ORDINARY_LINK
161 #undef LD_SWITCH_MACHINE
163 #define LD_SWITCH_MACHINE "-shlib"