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comparison src/m/ibmps2-aix.h @ 428:3ecd8885ac67 r21-2-22

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Import from CVS: tag r21-2-22
author cvs
date Mon, 13 Aug 2007 11:28:15 +0200
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427:0a0253eac470 428:3ecd8885ac67
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 /* AIX utimes allegedly causes SIGSEGV. */
102 #undef HAVE_UTIMES /* override configuration decision */
103
104 /* Data type of load average, as read out of kmem. */
105
106 #define LOAD_AVE_TYPE long /* For AIX (sysV) */
107
108 /* Convert that into an integer that is 100 for a load average of 1.0 */
109
110 #define LOAD_AVE_CVT(x) (int) (((double) (x)/65535.0) * 100.0)
111
112 /* This page was added in June 1990. It may be incorrect for some versions
113 of aix, so delete it if it causes trouble. */
114
115 /* AIX386 has BSD4.3 PTYs */
116
117 #define HAVE_PTYS
118
119 /* #define SKTPAIR */ /* SKTPAIR works, but what is advantage over pipes? */
120
121 /* Specify the font for X to use. */
122
123 #define X_DEFAULT_FONT "8x13"
124
125
126 /* sioctl.h should not be included, says bytheway@cs.utah.edu. */
127 #undef NEED_SIOCTL
128 /* I'm guessing that that means it doesn't want ptem.h either. */
129 #undef NEED_PTEM_H
130
131 /* Here override various assumptions in ymakefile */
132
133 /* Define C_ALLOCA if this machine does not support a true alloca
134 and the one written in C should be used instead.
135 Define HAVE_ALLOCA to say that the system provides a properly
136 working alloca function and it should be used.
137 Define neither one if an assembler-language alloca
138 in the file alloca.s should be used. */
139
140 #ifdef __GNUC__
141 #define HAVE_ALLOCA
142 #define alloca(n) __builtin_alloca(n)
143 #if __GNUC__ < 2
144 #define LIB_STANDARD "/usr/local/lib/gcc-gnulib -lbsd -lrts -lc "
145 #endif
146 /* -g fails to work, so it is omitted. */
147 /* tranle says that -fstrength-reduce does not help. */
148 #define C_DEBUG_SWITCH
149 #else
150 #define C_ALLOCA
151 #define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
152 #define LIBS_MACHINE "-lbsd -lrts"
153 #endif
154
155 #define OBJECTS_MACHINE "hftctl.o"
156 #define LD_SWITCH_MACHINE "-T0x00400000 -K -e start"
157 #define LIBS_DEBUG /* no -lg on aix ps/2 */
158
159 #ifdef USG5_3
160 #define XICCC
161 #undef LD_SWITCH_MACHINE
162 #define LD_SWITCH_MACHINE "-T0x0 -K -e start"
163
164 /* Things defined in s-usg5-3.h that need to be overridden. */
165 #undef BROKEN_TIOCGETC
166 #undef BROKEN_TIOCGWINSZ
167 #undef LIBX10_SYSTEM
168 #undef LIBX11_SYSTEM
169 #undef LIB_X11_LIB
170 #endif
171
172 /* Shared libraries are supported in a patch release of ps/2 1.2.1.
173 If the system has them, the user can turn them on, and this code
174 will make them work. */
175 #define USG_SHARED_LIBRARIES /* Assume that by 19's release everyone has this. */
176
177 #ifdef USG_SHARED_LIBRARIES
178 #define ORDINARY_LINK
179 #undef LIB_STANDARD
180 #undef LD_SWITCH_MACHINE
181 #if __GNUC__ > 1
182 #define LD_SWITCH_MACHINE "-shlib"
183 #endif
184 #endif