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comparison src/m/gould.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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-1:000000000000 0:376386a54a3c
1 /* machine description file for Gould PowerNodes with UTX/32 2.0 and 2.1.
2 (See MACHINES for older versions.)
3
4 * NOTE: If you are running a pre-release of UTX/32 2.1 you should #define
5 * RELEASE2_1 in config.h. This may also be necessary with un-updated
6 * official releases of 2.1
7
8 Copyright (C) 1986 Free Software Foundation, Inc.
9
10 This file is part of GNU Emacs.
11
12 GNU Emacs is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2, or (at your option)
15 any later version.
16
17 GNU Emacs is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with XEmacs; see the file COPYING. If not, write to
24 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 Boston, MA 02111-1307, USA. */
26
27 /* Synched up with: FSF 19.31. */
28
29 /* The following line tells the configuration script what sort of
30 operating system this machine is likely to run.
31 USUAL-OPSYS="note"
32
33 NOTE-START
34 Gould Power Node (-machine=gould -opsystem=bsd4-2 or bsd4-3)
35 (gould.h; s-bsd4-2.h or s-bsd4-3.h)
36
37 18.36 worked on versions 1.2 and 2.0 of the operating system.
38
39 On UTX/32 2.0, use -opsystem=bsd4-3
40
41 On UTX/32 1.2 and UTX/32S 1.0, use -opsystem=bsd4-2 and note that compiling
42 lib-src/sorted-doc tickles a compiler bug: remove the -g flag to cc in the
43 makefile.
44
45 UTX/32 1.3 has a bug in the bcopy library routine. Fix it by
46 #define BROKEN_BCOPY in gould.h.
47
48 Version 19 incorporates support for releases 2.1 and later of UTX/32.
49 A site running a pre-release of 2.1 should #define RELEASE2_1 in config.h.
50 NOTE-END */
51
52 /* Define WORD_MACHINE if addresses and such have
53 * to be corrected before they can be used as byte counts. */
54
55 /* #define WORD_MACHINE */
56
57 /* Now define a symbol for the cpu type, if your compiler
58 does not define it automatically */
59
60 #ifndef GOULD
61 #define GOULD
62 #endif
63
64 /* sel is an old preprocessor name on gould machines
65 - it is no longer needed and interferes with a variable in xmenu.c */
66 #undef sel
67
68 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
69 the bit field into an int. In other words, if bit fields
70 are always unsigned.
71
72 If you use NO_UNION_TYPE, this flag does not matter. */
73
74 #define EXPLICIT_SIGN_EXTEND
75
76 /* Data type of load average, as read out of kmem. */
77
78 #define LOAD_AVE_TYPE double
79
80 /* Convert that into an integer that is 100 for a load average of 1.0 */
81
82 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0)
83
84 /* Define CANNOT_DUMP on machines where unexec does not work.
85 Then the function dump-emacs will not be defined
86 and temacs will do (load "loadup") automatically unless told otherwise. */
87
88 /* #define CANNOT_DUMP */
89
90 /* Define VIRT_ADDR_VARIES if the virtual addresses of
91 pure and impure space as loaded can vary, and even their
92 relative order cannot be relied on.
93
94 Otherwise Emacs assumes that text space precedes data space,
95 numerically. */
96
97 #define VIRT_ADDR_VARIES
98
99 /* Define C_ALLOCA if this machine does not support a true alloca
100 and the one written in C should be used instead.
101 Define HAVE_ALLOCA to say that the system provides a properly
102 working alloca function and it should be used.
103 Define neither one if an assembler-language alloca
104 in the file alloca.s should be used. */
105
106 #define C_ALLOCA
107 #define STACK_DIRECTION -1 /* grows towards lower addresses on Gould UTX/32 */
108
109 /* No need to extend the user stack. */
110
111 /* If this is a 2.1 system, COFF will be predefined by cpp. If it's */
112 /* pre-2.1 COFF won't be defined, which is as it should be. */
113
114 #ifdef COFF
115
116 #define HEADER_INCL_IN_TEXT
117 #define COFF_BSD_SYMBOLS
118
119 /* Seems to be necessary with coff */
120 #define NO_REMAP
121
122 #ifndef GOULD_NP1
123 /* gould-np1.h includes this file */
124 /* keep the old value - don't skip over the headers */
125 #define KEEP_OLD_TEXT_SCNPTR
126 #define KEEP_OLD_PADDR
127 #ifndef RELEASE2_1
128 #define ADJUST_TEXTBASE
129 #endif /*RELEASE2_1*/
130 #endif /* GOULD_NP1 */
131
132 #ifdef IN_UNEXEC
133 /* make Gould NP and PN COFF look like USG COFF */
134 /* PN COFF */
135 #define aouthdr old_exec
136 /* PN COFF doesn't have a data_start or a_dtbase field in its */
137 /* optional header, so substitute a junk field */
138 #define a_dtbase a_ccvers
139 /* Gould COFF */
140 #define magic a_magic
141 #define tsize a_text
142 #define dsize a_data
143 #define bsize a_bss
144 #define entry a_entry
145 #define text_start a_txbase
146 #define data_start a_dtbase
147 #endif /* IN_UNEXEC */
148
149 /* Define how to search all pty names.
150 * This is for UTX 2.1 and greater on PN and all NP versions. It is only
151 * accident that this happens to correspond to the same versions of UTX
152 * as COFF does, but we'll take advantage of that here.
153 */
154
155 /*#define USE_PTY_PAIR*/
156
157 #endif /* COFF */
158
159 /* -g is sometimes broken on the Gould. */
160
161 #define C_DEBUG_SWITCH
162
163 /* Comparing pointers as unsigned ints tickles a bug in older compilers. */
164
165 #define PNTR_COMPARISON_TYPE int
166
167 /* The GOULD machine counts the a.out file header as part of the text. */
168
169 #define A_TEXT_OFFSET(HDR) sizeof (HDR)
170
171 /* Machine-dependent action when about to dump an executable file. */
172
173 #ifndef COFF
174 #define ADJUST_EXEC_HEADER \
175 unexec_text_start = hdr.a_txbase + sizeof (hdr);
176 #endif
177
178 /* We use the system's crt0.o. Somehow it avoids losing
179 with `environ' the way most standard crt0.o's do. */
180
181 #define START_FILES pre-crt0.o /lib/crt0.o