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comparison src/m/ibmps2-aix.h @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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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
8 the Free Software Foundation; either version 2, or (at your option)
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 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. */
20
21 /* Synched up with: FSF 19.31. */
22
23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run.
25 USUAL-OPSYS="note"
26
27 NOTE-START
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.
31 NOTE-END */
32
33 /* Define WORD_MACHINE if addresses and such have
34 * to be corrected before they can be used as byte counts. */
35
36 /* #define WORD_MACHINE */
37
38 /* Now define a symbol for the cpu type, if your compiler
39 does not define it automatically:
40 Ones defined so far include vax, m68000, ns16000, pyramid,
41 orion, tahoe, APOLLO and many others */
42
43 #define INTEL386
44 #define aix386
45
46 #define IBMAIX
47
48 /* crt0.c, if it is used, should use the i386-bsd style of entry.
49 with no extra dummy args. On USG and XENIX,
50 NO_REMAP says this isn't used. */
51
52 #define CRT0_DUMMIES bogus_fp,
53
54 /* crt0.c should define a symbol `start' and do .globl with a dot. */
55
56 #define DOT_GLOBAL_START
57
58 /* USG systems do not actually support the load average,
59 so disable it for them. */
60
61 /* Define CANNOT_DUMP on machines where unexec does not work.
62 Then the function dump-emacs will not be defined
63 and temacs will do (load "loadup") automatically unless told otherwise. */
64
65 /* #define CANNOT_DUMP */
66
67 /* Define VIRT_ADDR_VARIES if the virtual addresses of
68 pure and impure space as loaded can vary, and even their
69 relative order cannot be relied on.
70
71 Otherwise Emacs assumes that text space precedes data space,
72 numerically. */
73
74 /* #define VIRT_ADDR_VARIES */
75
76 /* Define addresses, macros, change some setup for dump */
77
78 #define NO_REMAP
79
80 #ifdef USG5_3
81 #define TEXT_START 0x00000000
82 #else
83 #define TEXT_START 0x00400000
84 #define TEXT_END 0
85 #define DATA_START 0x00800000
86 #define DATA_END 0
87
88 /* The data segment in this machine always starts at address 0x00800000.
89 An address of data cannot be stored correctly in a Lisp object;
90 we always lose the high bits. We must tell XPNTR to add them back. */
91
92 #define DATA_SEG_BITS 0x00800000
93 #endif
94
95 #if 0 /* I refuse to promulgate a recommendation that would make
96 users unable to debug - RMS. */
97 /* delete the following line to foil optimization, enable debugging */
98 #define C_DEBUG_SWITCH -O
99 #endif
100
101 /* Send signals to subprocesses by "typing" special chars at them. */
102
103 #define SIGNALS_VIA_CHARACTERS
104
105 /* AIX utimes allegedly causes SIGSEGV. */
106 #undef HAVE_UTIMES /* override configuration decision */
107
108 /* Data type of load average, as read out of kmem. */
109
110 #define LOAD_AVE_TYPE long /* For AIX (sysV) */
111
112 /* Convert that into an integer that is 100 for a load average of 1.0 */
113
114 #define LOAD_AVE_CVT(x) (int) (((double) (x)/65535.0) * 100.0)
115
116 /* This page was added in June 1990. It may be incorrect for some versions
117 of aix, so delete it if it causes trouble. */
118
119 /* AIX386 has BSD4.3 PTYs */
120
121 #define HAVE_PTYS
122
123 /* #define SKTPAIR */ /* SKTPAIR works, but what is advantage over pipes? */
124
125 /* Specify the font for X to use. */
126
127 #define X_DEFAULT_FONT "8x13"
128
129
130 /* sioctl.h should not be included, says bytheway@cs.utah.edu. */
131 #undef NEED_SIOCTL
132 /* I'm guessing that that means it doesn't want ptem.h either. */
133 #undef NEED_PTEM_H
134
135 /* aix has `union wait' */
136 #define HAVE_UNION_WAIT
137
138 /* Here override various assumptions in ymakefile */
139
140 /* Define C_ALLOCA if this machine does not support a true alloca
141 and the one written in C should be used instead.
142 Define HAVE_ALLOCA to say that the system provides a properly
143 working alloca function and it should be used.
144 Define neither one if an assembler-language alloca
145 in the file alloca.s should be used. */
146
147 #ifdef __GNUC__
148 #define HAVE_ALLOCA
149 #define alloca(n) __builtin_alloca(n)
150 #if __GNUC__ < 2
151 #define LIB_STANDARD /usr/local/lib/gcc-gnulib -lbsd -lrts -lc
152 #endif
153 /* -g fails to work, so it is omitted. */
154 /* tranle says that -fstrength-reduce does not help. */
155 #define C_DEBUG_SWITCH
156 #else
157 #define C_ALLOCA
158 #define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
159 #define LIBS_MACHINE -lbsd -lrts
160 #endif
161
162 #define OBJECTS_MACHINE hftctl.o
163 #define LD_SWITCH_MACHINE -T0x00400000 -K -e start
164 #define LIBS_DEBUG /* no -lg on aix ps/2 */
165
166 #ifdef USG5_3
167 #define XICCC
168 #undef LD_SWITCH_MACHINE
169 #define LD_SWITCH_MACHINE -T0x0 -K -e start
170
171 /* Things defined in s-usg5-3.h that need to be overridden. */
172 #undef BROKEN_TIOCGETC
173 #undef BROKEN_TIOCGWINSZ
174 #undef LIBX10_SYSTEM
175 #undef LIBX11_SYSTEM
176 #undef LIB_X11_LIB
177 #endif
178
179 /* Shared libraries are supported in a patch release of ps/2 1.2.1.
180 If the system has them, the user can turn them on, and this code
181 will make them work. */
182 #define USG_SHARED_LIBRARIES /* Assume that by 19's release everyone has this. */
183
184 #ifdef USG_SHARED_LIBRARIES
185 #define ORDINARY_LINK
186 #undef LIB_STANDARD
187 #undef LD_SWITCH_MACHINE
188 #if __GNUC__ > 1
189 #define LD_SWITCH_MACHINE -shlib
190 #endif
191 #endif