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20c428fd JB |
1 | /* machine description file for ibm ps/2 aix386. |
2 | Copyright (C) 1989 Free Software Foundation, Inc. | |
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 | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
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="note" | |
24 | ||
25 | NOTE-START | |
26 | Use -opsystem=usg5-3 on AIX 1.2. | |
27 | -opsystem=usg5-2-2 should work on either AIX 1.1 or 1.2, but may not | |
28 | work with certain new X window managers, and may be suboptimal. | |
29 | NOTE-END */ | |
30 | ||
31 | /* The following three symbols give information on | |
32 | the size of various data types. */ | |
33 | ||
34 | #define SHORTBITS 16 /* Number of bits in a short */ | |
35 | ||
36 | #define INTBITS 32 /* Number of bits in an int */ | |
37 | ||
38 | #define LONGBITS 32 /* Number of bits in a long */ | |
39 | ||
40 | /* i386 is not big-endian: lowest numbered byte is least significant. */ | |
41 | ||
42 | /* #undef BIG_ENDIAN */ | |
43 | ||
44 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a | |
45 | * group of arguments and treat it as an array of the arguments. */ | |
46 | ||
47 | /* #define NO_ARG_ARRAY */ | |
48 | ||
49 | /* Define WORD_MACHINE if addresses and such have | |
50 | * to be corrected before they can be used as byte counts. */ | |
51 | ||
52 | /* #define WORD_MACHINE */ | |
53 | ||
20c428fd JB |
54 | /* Now define a symbol for the cpu type, if your compiler |
55 | does not define it automatically: | |
56 | Ones defined so far include vax, m68000, ns16000, pyramid, | |
57 | orion, tahoe, APOLLO and many others */ | |
58 | ||
59 | #define INTEL386 | |
60 | #define aix386 | |
20c428fd JB |
61 | |
62 | #define IBMAIX | |
63 | ||
64 | /* Use type int rather than a union, to represent Lisp_Object */ | |
65 | ||
66 | #define NO_UNION_TYPE | |
67 | ||
68 | /* crt0.c, if it is used, should use the i386-bsd style of entry. | |
69 | with no extra dummy args. On USG and XENIX, | |
70 | NO_REMAP says this isn't used. */ | |
71 | ||
72 | #define CRT0_DUMMIES bogus_fp, | |
73 | ||
74 | /* crt0.c should define a symbol `start' and do .globl with a dot. */ | |
75 | ||
76 | #define DOT_GLOBAL_START | |
77 | ||
78 | /* USG systems do not actually support the load average, | |
79 | so disable it for them. */ | |
80 | ||
81 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
82 | Then the function dump-emacs will not be defined | |
83 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
84 | ||
85 | /* #define CANNOT_DUMP */ | |
86 | ||
87 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
88 | pure and impure space as loaded can vary, and even their | |
89 | relative order cannot be relied on. | |
90 | ||
91 | Otherwise Emacs assumes that text space precedes data space, | |
92 | numerically. */ | |
93 | ||
94 | /* #define VIRT_ADDR_VARIES */ | |
95 | ||
96 | /* Define addresses, macros, change some setup for dump */ | |
97 | ||
98 | #define NO_REMAP | |
99 | #undef static | |
100 | /* Since NO_REMAP, problem with statics doesn't exist */ | |
101 | ||
102 | #ifdef USG5_3 | |
103 | #define TEXT_START 0x00000000 | |
104 | #else | |
105 | #define TEXT_START 0x00400000 | |
106 | #define TEXT_END 0 | |
107 | #define DATA_START 0x00800000 | |
108 | #define DATA_END 0 | |
109 | ||
110 | /* The data segment in this machine always starts at address 0x00800000. | |
111 | An address of data cannot be stored correctly in a Lisp object; | |
112 | we always lose the high bits. We must tell XPNTR to add them back. */ | |
113 | ||
114 | #define DATA_SEG_BITS 0x00800000 | |
115 | #endif | |
116 | ||
117 | #if 0 /* I refuse to promulgate a recommendation that would make | |
118 | users unable to debug - RMS. */ | |
119 | /* delete the following line to foil optimization, enable debugging */ | |
120 | #define C_DEBUG_SWITCH -O | |
121 | #endif | |
122 | ||
123 | #define BSTRING | |
20c428fd JB |
124 | #define HAVE_SELECT |
125 | #define HAVE_TIMEVAL | |
126 | #define HAVE_VFORK | |
6da3d9e5 RS |
127 | #define HAVE_SETSID |
128 | #undef HAVE_TERMIO | |
129 | #define HAVE_TERMIOS | |
130 | ||
131 | /* Send signals to subprocesses by "typing" special chars at them. */ | |
132 | ||
133 | #define SIGNALS_VIA_CHARACTERS | |
20c428fd JB |
134 | |
135 | /* | |
136 | * Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir | |
137 | * library functions. Almost, but not quite the same as | |
138 | * the 4.2 functions | |
139 | */ | |
140 | #define SYSV_SYSTEM_DIR | |
141 | ||
142 | /* | |
143 | * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate | |
144 | * The 4.2 opendir, etc., library functions. | |
145 | */ | |
146 | #undef NONSYSTEM_DIR_LIBRARY | |
147 | ||
148 | /* But don't use utimes() -- it causes SIGSEGV! Use utime() instead. */ | |
149 | #define USE_UTIME | |
150 | ||
151 | /* AIX defines FIONREAD, but it does not work. */ | |
152 | #define BROKEN_FIONREAD | |
153 | ||
154 | /* Data type of load average, as read out of kmem. */ | |
155 | ||
156 | #define LOAD_AVE_TYPE long /* For AIX (sysV) */ | |
157 | ||
158 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
159 | ||
160 | #define LOAD_AVE_CVT(x) (int) (((double) (x)/65535.0) * 100.0) | |
161 | \f | |
162 | /* This page was added in June 1990. It may be incorrect for some versions | |
163 | of aix, so delete it if it causes trouble. */ | |
164 | ||
165 | /* AIX has sigsetmask() */ | |
166 | #undef sigsetmask | |
167 | ||
168 | /* AIX386 has BSD4.3 PTYs */ | |
169 | ||
170 | #define HAVE_PTYS | |
171 | ||
172 | /* AIX has IPC. It also has sockets, and either can be used for client/server. | |
173 | I would suggest the client/server code be changed to use HAVE_SOCKETS rather | |
174 | than BSD as the conditional if sockets provide any advantages. */ | |
175 | ||
176 | #define HAVE_SYSVIPC | |
177 | ||
178 | /* AIX has sockets */ | |
179 | ||
180 | #define HAVE_SOCKETS | |
181 | /* #define SKTPAIR */ /* SKTPAIR works, but what is advantage over pipes? */ | |
182 | ||
183 | /* Specify the font for X to use. */ | |
184 | ||
185 | #define X_DEFAULT_FONT "8x13" | |
186 | ||
187 | /* AIX has a wait.h. */ | |
188 | ||
189 | #define HAVE_WAIT_HEADER | |
190 | \f | |
191 | /* sioctl.h should not be included, says bytheway@cs.utah.edu. */ | |
192 | #undef NEED_SIOCTL | |
193 | /* I'm guessing that that means it doesn't want ptem.h either. */ | |
194 | #undef NEED_PTEM_H | |
195 | ||
196 | /* aix has `union wait' */ | |
197 | #define HAVE_UNION_WAIT | |
198 | ||
199 | /* Here override various assumptions in ymakefile */ | |
200 | ||
201 | /* Define C_ALLOCA if this machine does not support a true alloca | |
202 | and the one written in C should be used instead. | |
203 | Define HAVE_ALLOCA to say that the system provides a properly | |
204 | working alloca function and it should be used. | |
205 | Define neither one if an assembler-language alloca | |
206 | in the file alloca.s should be used. */ | |
207 | ||
208 | #ifdef __GNUC__ | |
209 | #define HAVE_ALLOCA | |
210 | #define alloca(n) __builtin_alloca(n) | |
c395cc7b | 211 | #if __GNUC__ < 2 |
20c428fd | 212 | #define LIB_STANDARD /usr/local/lib/gcc-gnulib -lbsd -lrts -lc |
c395cc7b | 213 | #endif |
20c428fd JB |
214 | /* -g fails to work, so it is omitted. */ |
215 | /* tranle says that -fstrength-reduce does not help. */ | |
6da3d9e5 | 216 | #define C_DEBUG_SWITCH |
20c428fd JB |
217 | #else |
218 | #define C_ALLOCA | |
219 | #define STACK_DIRECTION -1 /* tell alloca.c which way it grows */ | |
220 | #define LIBS_MACHINE -lbsd -lrts | |
221 | #endif | |
222 | ||
223 | #define OBJECTS_MACHINE hftctl.o | |
224 | #define LD_SWITCH_MACHINE -T0x00400000 -K -e start | |
6da3d9e5 | 225 | #define LIBS_DEBUG /* no -lg on aix ps/2 */ |
20c428fd JB |
226 | |
227 | #ifdef USG5_3 | |
228 | #define XICCC | |
229 | #define HAVE_GETWD | |
20c428fd JB |
230 | #undef LD_SWITCH_MACHINE |
231 | #define LD_SWITCH_MACHINE -T0x0 -K -e start | |
232 | ||
233 | /* Things defined in s-usg5-3.h that need to be overridden. */ | |
234 | #undef NOMULTIPLEJOBS | |
235 | #undef BROKEN_TIOCGETC | |
6da3d9e5 | 236 | #undef BROKEN_TIOCGWINSZ |
20c428fd JB |
237 | #undef LIBX10_SYSTEM |
238 | #undef LIBX11_SYSTEM | |
6da3d9e5 | 239 | #undef LIB_X11_LIB |
20c428fd | 240 | #endif |
ebdf5546 RS |
241 | |
242 | /* Shared libraries are supported in a patch release of ps/2 1.2.1. | |
243 | If the system has them, the user can turn them on, and this code | |
244 | will make them work. */ | |
245 | #define USG_SHARED_LIBRARIES /* Assume that by 19's release everyone has this. */ | |
246 | ||
247 | #ifdef USG_SHARED_LIBRARIES | |
248 | #define ORDINARY_LINK | |
249 | #undef LIB_STANDARD | |
250 | #undef LD_SWITCH_MACHINE | |
251 | #if __GNUC__ > 1 | |
252 | #define LD_SWITCH_MACHINE -shlib | |
253 | #endif | |
254 | #endif |