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20c428fd | 1 | /* machine description file for ibm ps/2 aix386. |
d8f6d720 | 2 | Copyright (C) 1989, 2002 Free Software Foundation, Inc. |
20c428fd JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
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 | |
17385adc | 8 | the Free Software Foundation; either version 2, or (at your option) |
20c428fd JB |
9 | any later version. |
10 | ||
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. | |
15 | ||
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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
20c428fd JB |
20 | |
21 | ||
177c0ea7 | 22 | /* The following line tells the configuration script what sort of |
20c428fd JB |
23 | operating system this machine is likely to run. |
24 | USUAL-OPSYS="note" | |
25 | ||
26 | NOTE-START | |
27 | Use -opsystem=usg5-3 on AIX 1.2. | |
28 | -opsystem=usg5-2-2 should work on either AIX 1.1 or 1.2, but may not | |
29 | work with certain new X window managers, and may be suboptimal. | |
30 | NOTE-END */ | |
31 | ||
74d3f806 KH |
32 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word |
33 | is the most significant byte. */ | |
34 | ||
35 | #undef WORDS_BIG_ENDIAN | |
36 | ||
20c428fd JB |
37 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
38 | * group of arguments and treat it as an array of the arguments. */ | |
39 | ||
40 | /* #define NO_ARG_ARRAY */ | |
41 | ||
42 | /* Define WORD_MACHINE if addresses and such have | |
43 | * to be corrected before they can be used as byte counts. */ | |
44 | ||
45 | /* #define WORD_MACHINE */ | |
46 | ||
20c428fd JB |
47 | /* Now define a symbol for the cpu type, if your compiler |
48 | does not define it automatically: | |
49 | Ones defined so far include vax, m68000, ns16000, pyramid, | |
50 | orion, tahoe, APOLLO and many others */ | |
51 | ||
52 | #define INTEL386 | |
53 | #define aix386 | |
20c428fd JB |
54 | |
55 | #define IBMAIX | |
56 | ||
57 | /* Use type int rather than a union, to represent Lisp_Object */ | |
58 | ||
59 | #define NO_UNION_TYPE | |
60 | ||
61 | /* crt0.c, if it is used, should use the i386-bsd style of entry. | |
62 | with no extra dummy args. On USG and XENIX, | |
63 | NO_REMAP says this isn't used. */ | |
64 | ||
65 | #define CRT0_DUMMIES bogus_fp, | |
66 | ||
67 | /* crt0.c should define a symbol `start' and do .globl with a dot. */ | |
68 | ||
69 | #define DOT_GLOBAL_START | |
70 | ||
71 | /* USG systems do not actually support the load average, | |
72 | so disable it for them. */ | |
73 | ||
74 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
75 | Then the function dump-emacs will not be defined | |
76 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
77 | ||
78 | /* #define CANNOT_DUMP */ | |
79 | ||
80 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
81 | pure and impure space as loaded can vary, and even their | |
82 | relative order cannot be relied on. | |
83 | ||
84 | Otherwise Emacs assumes that text space precedes data space, | |
85 | numerically. */ | |
86 | ||
87 | /* #define VIRT_ADDR_VARIES */ | |
88 | ||
89 | /* Define addresses, macros, change some setup for dump */ | |
90 | ||
91 | #define NO_REMAP | |
92 | #undef static | |
93 | /* Since NO_REMAP, problem with statics doesn't exist */ | |
94 | ||
95 | #ifdef USG5_3 | |
96 | #define TEXT_START 0x00000000 | |
97 | #else | |
98 | #define TEXT_START 0x00400000 | |
99 | #define TEXT_END 0 | |
100 | #define DATA_START 0x00800000 | |
101 | #define DATA_END 0 | |
102 | ||
103 | /* The data segment in this machine always starts at address 0x00800000. | |
104 | An address of data cannot be stored correctly in a Lisp object; | |
105 | we always lose the high bits. We must tell XPNTR to add them back. */ | |
106 | ||
107 | #define DATA_SEG_BITS 0x00800000 | |
108 | #endif | |
109 | ||
110 | #if 0 /* I refuse to promulgate a recommendation that would make | |
111 | users unable to debug - RMS. */ | |
112 | /* delete the following line to foil optimization, enable debugging */ | |
113 | #define C_DEBUG_SWITCH -O | |
114 | #endif | |
115 | ||
116 | #define BSTRING | |
6da3d9e5 RS |
117 | #undef HAVE_TERMIO |
118 | #define HAVE_TERMIOS | |
119 | ||
120 | /* Send signals to subprocesses by "typing" special chars at them. */ | |
121 | ||
122 | #define SIGNALS_VIA_CHARACTERS | |
20c428fd JB |
123 | |
124 | /* | |
125 | * Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir | |
126 | * library functions. Almost, but not quite the same as | |
127 | * the 4.2 functions | |
128 | */ | |
129 | #define SYSV_SYSTEM_DIR | |
130 | ||
131 | /* | |
132 | * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate | |
133 | * The 4.2 opendir, etc., library functions. | |
134 | */ | |
135 | #undef NONSYSTEM_DIR_LIBRARY | |
136 | ||
5df58331 KH |
137 | /* AIX utimes allegedly causes SIGSEGV. */ |
138 | #undef HAVE_UTIMES /* override configuration decision */ | |
20c428fd JB |
139 | |
140 | /* AIX defines FIONREAD, but it does not work. */ | |
141 | #define BROKEN_FIONREAD | |
142 | ||
143 | /* Data type of load average, as read out of kmem. */ | |
144 | ||
145 | #define LOAD_AVE_TYPE long /* For AIX (sysV) */ | |
146 | ||
147 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
148 | ||
149 | #define LOAD_AVE_CVT(x) (int) (((double) (x)/65535.0) * 100.0) | |
150 | \f | |
151 | /* This page was added in June 1990. It may be incorrect for some versions | |
152 | of aix, so delete it if it causes trouble. */ | |
153 | ||
154 | /* AIX has sigsetmask() */ | |
155 | #undef sigsetmask | |
156 | ||
157 | /* AIX386 has BSD4.3 PTYs */ | |
158 | ||
159 | #define HAVE_PTYS | |
160 | ||
161 | /* AIX has IPC. It also has sockets, and either can be used for client/server. | |
162 | I would suggest the client/server code be changed to use HAVE_SOCKETS rather | |
163 | than BSD as the conditional if sockets provide any advantages. */ | |
164 | ||
165 | #define HAVE_SYSVIPC | |
166 | ||
167 | /* AIX has sockets */ | |
168 | ||
169 | #define HAVE_SOCKETS | |
170 | /* #define SKTPAIR */ /* SKTPAIR works, but what is advantage over pipes? */ | |
171 | ||
172 | /* Specify the font for X to use. */ | |
173 | ||
174 | #define X_DEFAULT_FONT "8x13" | |
175 | ||
176 | /* AIX has a wait.h. */ | |
177 | ||
178 | #define HAVE_WAIT_HEADER | |
179 | \f | |
180 | /* sioctl.h should not be included, says bytheway@cs.utah.edu. */ | |
181 | #undef NEED_SIOCTL | |
182 | /* I'm guessing that that means it doesn't want ptem.h either. */ | |
183 | #undef NEED_PTEM_H | |
184 | ||
185 | /* aix has `union wait' */ | |
186 | #define HAVE_UNION_WAIT | |
187 | ||
188 | /* Here override various assumptions in ymakefile */ | |
189 | ||
20c428fd | 190 | #ifdef __GNUC__ |
20c428fd | 191 | #define alloca(n) __builtin_alloca(n) |
c395cc7b | 192 | #if __GNUC__ < 2 |
177c0ea7 | 193 | #define LIB_STANDARD /usr/local/lib/gcc-gnulib -lbsd -lrts -lc |
c395cc7b | 194 | #endif |
20c428fd JB |
195 | /* -g fails to work, so it is omitted. */ |
196 | /* tranle says that -fstrength-reduce does not help. */ | |
6da3d9e5 | 197 | #define C_DEBUG_SWITCH |
20c428fd | 198 | #else |
20c428fd JB |
199 | #define LIBS_MACHINE -lbsd -lrts |
200 | #endif | |
201 | ||
202 | #define OBJECTS_MACHINE hftctl.o | |
203 | #define LD_SWITCH_MACHINE -T0x00400000 -K -e start | |
6da3d9e5 | 204 | #define LIBS_DEBUG /* no -lg on aix ps/2 */ |
20c428fd JB |
205 | |
206 | #ifdef USG5_3 | |
207 | #define XICCC | |
20c428fd JB |
208 | #undef LD_SWITCH_MACHINE |
209 | #define LD_SWITCH_MACHINE -T0x0 -K -e start | |
210 | ||
211 | /* Things defined in s-usg5-3.h that need to be overridden. */ | |
212 | #undef NOMULTIPLEJOBS | |
213 | #undef BROKEN_TIOCGETC | |
6da3d9e5 | 214 | #undef BROKEN_TIOCGWINSZ |
20c428fd JB |
215 | #undef LIBX10_SYSTEM |
216 | #undef LIBX11_SYSTEM | |
6da3d9e5 | 217 | #undef LIB_X11_LIB |
20c428fd | 218 | #endif |
ebdf5546 RS |
219 | |
220 | /* Shared libraries are supported in a patch release of ps/2 1.2.1. | |
221 | If the system has them, the user can turn them on, and this code | |
222 | will make them work. */ | |
223 | #define USG_SHARED_LIBRARIES /* Assume that by 19's release everyone has this. */ | |
224 | ||
225 | #ifdef USG_SHARED_LIBRARIES | |
226 | #define ORDINARY_LINK | |
227 | #undef LIB_STANDARD | |
228 | #undef LD_SWITCH_MACHINE | |
229 | #if __GNUC__ > 1 | |
230 | #define LD_SWITCH_MACHINE -shlib | |
231 | #endif | |
232 | #endif |