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comparison src/m/ibmrs6000.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 /* R2 AIX machine/system dependent defines
2 Copyright (C) 1988 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="aix3-1" */
26
27 /* Now define a symbol for the cpu type, if your compiler
28 does not define it automatically. */
29
30 #define IBMR2AIX
31
32 /* Define CANNOT_DUMP on machines where unexec does not work.
33 Then the function dump-emacs will not be defined
34 and temacs will do (load "loadup") automatically unless told otherwise. */
35 #ifdef USG5_4
36 #define CANNOT_DUMP
37 #endif
38
39 #ifndef UNEXEC
40 #define UNEXEC unexaix.o
41 #endif
42
43 /* Define addresses, macros, change some setup for dump */
44
45 #define NO_REMAP
46
47 #ifndef USG5_4
48 #define TEXT_START 0x10000000
49 #define TEXT_END 0
50 #define DATA_START 0x20000000
51 #define DATA_END 0
52 #endif
53
54 /* The data segment in this machine always starts at address 0x20000000.
55 An address of data cannot be stored correctly in a Lisp object;
56 we always lose the high bits. We must tell XPNTR to add them back. */
57
58 #ifndef USG5_4
59 #define DATA_SEG_BITS 0x20000000
60 #else
61 #define DATA_SEG_BITS 0
62 #endif
63
64 #ifdef CANNOT_DUMP
65 /* Define shared memory segment symbols */
66
67 #define PURE_SEG_BITS 0x30000000
68
69 /* Use shared memory. */
70 /* This is turned off because it does not always work. See etc/AIX.DUMP. */
71 /* #define HAVE_SHM */
72 #define SHMKEY 5305035 /* used for shared memory code segments */
73 #endif /* CANNOT_DUMP */
74
75 #define N_BADMAG(x) BADMAG(x)
76 #define N_TXTOFF(x) A_TEXTPOS(x)
77 #define N_SYMOFF(x) A_SYMPOS(x)
78 #define A_TEXT_OFFSET(HDR) sizeof(HDR)
79 /* #define ADJUST_EXEC_HEADER \
80 unexec_text_start += sizeof(hdr); \
81 unexec_data_start = ohdr.a_dbase
82 */
83 #undef ADDR_CORRECT
84 #define ADDR_CORRECT(x) ((int)(x))
85
86 /* Define C_ALLOCA if this machine does not support a true alloca
87 and the one written in C should be used instead.
88 Define HAVE_ALLOCA to say that the system provides a properly
89 working alloca function and it should be used.
90 Define neither one if an assembler-language alloca
91 in the file alloca.s should be used. */
92
93 /* Note: aix3-2.h defines HAVE_ALLOCA; aix3-1.h doesn't. */
94 #ifndef HAVE_ALLOCA
95 #define C_ALLOCA
96 #define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
97 #endif
98
99 /* Specify the font for X to use.
100 This used to be Rom14.500; that's nice on the X server shipped with
101 the RS/6000, but it's not available on other servers. */
102 #define X_DEFAULT_FONT "fixed"
103
104 /* Here override various assumptions in ymakefile */
105
106 #ifdef AIXHFT
107 #define OBJECTS_MACHINE hftctl.o
108 #endif
109
110 #ifndef USG5_4
111 /* XEmacs change -- commented out: dkeller@vnet.ibm.com */
112 /* #define C_SWITCH_MACHINE -D_BSD */
113 #endif
114
115 #ifdef AIX3_2
116 /* -lpthreads seems to be necessary for Xlib in X11R6, and should be harmless
117 on older versions of X where it happens to exist. */
118 #ifdef HAVE_LIBPTHREADS
119 #define LIBS_MACHINE -lrts -lIM -liconv -lpthreads
120 #else
121 /* IBM's X11R5 use -lIM and -liconv in AIX 3.2.2. */
122 #define LIBS_MACHINE -lrts -lIM -liconv
123 #endif
124 #else
125 #ifdef USG5_4
126 #define LIBS_MACHINE
127 #else
128 #define LIBS_MACHINE -lIM
129 #endif
130 #endif
131
132 #define START_FILES
133
134 /* Don't try to include sioctl.h or ptem.h. */
135 #undef NEED_SIOCTL
136 #undef NEED_PTEM_H
137
138 #define ORDINARY_LINK
139
140
141 #ifndef USG5_4
142 /* XEmacs change -- automatically add the correct path for smt.exp if
143 it exists. */
144 /* marc@sti.com (Marc Pawliger) says ibmrs6000.inp is needed to avoid
145 linker error for updated X11R5 libraries, which references pthread library
146 which most machines don't have. We use the name .inp instead of .imp
147 because .inp is a better convention to use in make-dist for naming
148 random input files. */
149 /* Avoid gcc 2.7.x collect2 bug by using /bin/ld instead. */
150 #if __GNUC__ == 2 && __GNUC_MINOR__ == 7
151 #ifdef AIX_SMT_EXP
152 #define LD_SWITCH_MACHINE -B/bin/ -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp,-bI:$(srcdir)/m/ibmrs6000.inp,AIX_SMT_EXP
153 #else
154 #define LD_SWITCH_MACHINE -B/bin/ -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp,-bI:$(srcdir)/m/ibmrs6000.inp
155 #endif
156 #else /* not gcc 2.7.x */
157 #ifdef AIX_SMT_EXP
158 #define LD_SWITCH_MACHINE -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp,-bI:$(srcdir)/m/ibmrs6000.inp,AIX_SMT_EXP
159 #else
160 #define LD_SWITCH_MACHINE -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp,-bI:$(srcdir)/m/ibmrs6000.inp
161 #endif
162 #endif /* __GNUC__ == 2 && __GNUC_MINOR__ == 7 */
163
164 #endif /* USG5_4 */