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ec558adc | 1 | /* m- file for Mips machines. |
429ab54e | 2 | Copyright (C) 1987, 1992, 1999, 2001, 2002, 2003, 2004, |
49c1c3cc | 3 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
20c428fd JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
4a9f99bd | 9 | the Free Software Foundation; either version 3, or (at your option) |
20c428fd JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
364c38d3 LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
20c428fd JB |
21 | |
22 | ||
177c0ea7 | 23 | /* The following line tells the configuration script what sort of |
20c428fd JB |
24 | operating system this machine is likely to run. |
25 | USUAL-OPSYS="note" | |
26 | ||
27 | NOTE-START | |
540c2788 DL |
28 | Use mips4.h for RISCOS version 4; use s-bsd4-3.h with the BSD world. |
29 | Note that the proper m file for the Decstation is pmax.h. | |
20c428fd JB |
30 | NOTE-END */ |
31 | ||
22e9fe24 | 32 | /* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word |
74d3f806 KH |
33 | is the most significant byte. */ |
34 | ||
540c2788 | 35 | #if ! (defined (__MIPSEL__) || defined (MIPSEL) || defined (_MIPSEL)) |
74d3f806 | 36 | #define WORDS_BIG_ENDIAN |
540c2788 | 37 | #endif |
74d3f806 | 38 | |
20c428fd JB |
39 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
40 | * group of arguments and treat it as an array of the arguments. */ | |
41 | ||
42 | #define NO_ARG_ARRAY | |
43 | ||
44 | /* Define WORD_MACHINE if addresses and such have | |
45 | * to be corrected before they can be used as byte counts. */ | |
46 | ||
47 | #undef WORD_MACHINE | |
48 | ||
ec558adc JB |
49 | /* Define how to take a char and sign-extend into an int. |
50 | On machines where char is signed, this is a no-op. */ | |
51 | ||
52 | #define SIGN_EXTEND_CHAR(c) ((signed char)(c)) | |
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 | #ifndef mips | |
59 | # define mips | |
60 | #endif | |
61 | ||
62 | /* Use type int rather than a union, to represent Lisp_Object */ | |
63 | /* This is desirable for most machines. */ | |
64 | ||
65 | #define NO_UNION_TYPE | |
66 | ||
67 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
68 | the 24-bit bit field into an int. In other words, if bit fields | |
69 | are always unsigned. | |
70 | ||
71 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
72 | ||
73 | #define EXPLICIT_SIGN_EXTEND | |
74 | ||
75 | /* Data type of load average, as read out of kmem. */ | |
76 | ||
77 | #define LOAD_AVE_TYPE long | |
78 | ||
79 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
80 | ||
81 | #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / 256.0) | |
82 | ||
96160d21 JB |
83 | /* CDC EP/IX 1.4.3 uses /unix */ |
84 | ||
f5e7cf48 | 85 | #ifndef __linux__ |
96160d21 JB |
86 | #undef KERNEL_FILE |
87 | #define KERNEL_FILE "/unix" | |
f5e7cf48 | 88 | #endif /* not __linux__ */ |
96160d21 | 89 | |
20c428fd JB |
90 | /* Define CANNOT_DUMP on machines where unexec does not work. |
91 | Then the function dump-emacs will not be defined | |
92 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
93 | ||
94 | #undef CANNOT_DUMP | |
95 | ||
96 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
97 | pure and impure space as loaded can vary, and even their | |
98 | relative order cannot be relied on. | |
99 | ||
100 | Otherwise Emacs assumes that text space precedes data space, | |
101 | numerically. */ | |
102 | ||
103 | /* #define VIRT_ADDR_VARIES */ | |
104 | ||
20c428fd JB |
105 | /* Define NO_REMAP if memory segmentation makes it not work well |
106 | to change the boundary between the text section and data section | |
107 | when Emacs is dumped. If you define this, the preloaded Lisp | |
108 | code will not be sharable; but that's better than failing completely. */ | |
109 | ||
110 | #define NO_REMAP | |
111 | ||
112 | /* This machine requires completely different unexec code | |
113 | which lives in a separate file. Specify the file name. */ | |
114 | ||
73372e83 | 115 | #if !defined(__linux__) && !defined(__NetBSD__) |
57fdbf40 | 116 | #undef UNEXEC |
20c428fd | 117 | #define UNEXEC unexmips.o |
73372e83 | 118 | #endif /* not __linux__ && not __NetBSD__ */ |
20c428fd JB |
119 | |
120 | /* Describe layout of the address space in an executing process. */ | |
121 | ||
f5e7cf48 RS |
122 | #ifdef __linux__ |
123 | #define TEXT_START 0x00400000 | |
124 | #define DATA_START 0x10000000 | |
125 | #define DATA_SEG_BITS 0x10000000 | |
126 | #else /* not __linux__ */ | |
20c428fd JB |
127 | #define TEXT_START 0x400000 |
128 | #define DATA_START 0x800000 | |
f5e7cf48 | 129 | #endif /* __linux__ */ |
20c428fd JB |
130 | |
131 | /* Alter some of the options used when linking. */ | |
132 | ||
e39a993c | 133 | #if !defined(__linux__) |
6df54671 | 134 | #ifdef BSD_SYSTEM |
20c428fd | 135 | |
ec558adc | 136 | /* DECstations don't have this library. |
20c428fd JB |
137 | #define LIBS_MACHINE -lmld */ |
138 | ||
139 | #define LD_SWITCH_MACHINE -D 800000 | |
140 | #define LIBS_DEBUG | |
141 | ||
1e6a9aaf GM |
142 | #if defined (__NetBSD__) || defined (__OpenBSD__) |
143 | #else /* bsd with elf */ | |
ec558adc | 144 | #define LINKER /bsd43/bin/ld |
42f30377 | 145 | |
20c428fd JB |
146 | #define LD_SWITCH_MACHINE -D 800000 -g3 |
147 | #define START_FILES pre-crt0.o /usr/lib/crt1.o | |
148 | #define LIB_STANDARD -lbsd -lc /usr/lib/crtn.o | |
149 | #define LIBS_TERMCAP -lcurses | |
150 | ||
ec558adc | 151 | #define C_SWITCH_MACHINE -I/usr/include/bsd |
20c428fd JB |
152 | #define C_DEBUG_SWITCH -O -g3 |
153 | ||
73372e83 EZ |
154 | #endif /* bsd with elf */ |
155 | #else /* not BSD_SYSTEM */ | |
156 | ||
157 | #if defined(__GNUC__) && defined(_ABIN32) | |
158 | #define LIBS_MACHINE | |
159 | #else | |
160 | #define LIBS_MACHINE -lmld | |
161 | #endif | |
162 | ||
6df54671 | 163 | #endif /* not BSD_SYSTEM */ |
e39a993c | 164 | #endif /* not __linux__ */ |
20c428fd JB |
165 | \f |
166 | /* The standard definitions of these macros would work ok, | |
167 | but these are faster because the constants are short. */ | |
168 | ||
5964b664 | 169 | #define XUINT(a) (((unsigned)(a) << (BITS_PER_INT-VALBITS)) >> (BITS_PER_INT-VALBITS)) |
20c428fd | 170 | |
ec558adc JB |
171 | #define XSET(var, type, ptr) \ |
172 | ((var) = \ | |
173 | ((int)(type) << VALBITS) \ | |
5964b664 | 174 | + (((unsigned) (ptr) << (BITS_PER_INT-VALBITS)) >> (BITS_PER_INT-VALBITS))) |
ec558adc | 175 | \f |
e39a993c | 176 | #if !defined (__linux__) |
20c428fd JB |
177 | #ifdef USG |
178 | ||
179 | /* Cancel certain parts of standard sysV support. */ | |
180 | #undef NONSYSTEM_DIR_LIBRARY | |
181 | #define SYSV_SYSTEM_DIR | |
182 | #undef static | |
183 | ||
184 | /* Don't try to use SIGIO or FIONREAD even though they are defined. */ | |
332d98c7 | 185 | #define BROKEN_SIGIO |
20c428fd JB |
186 | #define BROKEN_FIONREAD |
187 | ||
188 | /* Describe special kernel features. */ | |
189 | ||
190 | #define HAVE_SYSVIPC | |
191 | ||
ec558adc | 192 | #if defined(emacs) && !defined(INHIBIT_BSD_TIME) |
20c428fd JB |
193 | #include <bsd/sys/time.h> |
194 | #endif | |
195 | ||
5df58331 KH |
196 | /* The `select' in the system won't work for pipes, so don't use it. */ |
197 | #undef HAVE_SELECT /* override configuration decision */ | |
20c428fd | 198 | |
20c428fd JB |
199 | #define HAVE_PTYS |
200 | #define HAVE_SOCKETS | |
201 | ||
202 | #undef NOMULTIPLEJOBS | |
20c428fd JB |
203 | |
204 | /* ??? */ | |
205 | #define IRIS | |
206 | ||
ec558adc | 207 | #endif /* USG */ |
20c428fd | 208 | |
6df54671 | 209 | #ifdef BSD_SYSTEM |
20c428fd JB |
210 | #define COFF |
211 | #define TERMINFO | |
212 | #undef MAIL_USE_FLOCK /* Someone should check this. */ | |
213 | #undef HAVE_UNION_WAIT | |
6df54671 | 214 | #endif /* BSD_SYSTEM */ |
ec558adc | 215 | |
e39a993c | 216 | #endif /* not __linux__ */ |
ab5796a9 MB |
217 | |
218 | /* arch-tag: 8fd020ee-78a7-4d87-96ce-6129f52f7bee | |
219 | (do not change this comment) */ |