Commit | Line | Data |
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ec558adc | 1 | /* m- file for Mips machines. |
6b61353c | 2 | Copyright (C) 1987, 1992, 1999, 2002, 2003 Free Software Foundation, Inc. |
20c428fd JB |
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 | |
ec558adc | 8 | the Free Software Foundation; either version 2, or (at your option) |
20c428fd JB |
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 GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
20c428fd JB |
20 | |
21 | ||
177c0ea7 | 22 | /* The following line tells the configuration script what sort of |
20c428fd JB |
23 | operating system this machine is likely to run. |
24 | USUAL-OPSYS="note" | |
25 | ||
26 | NOTE-START | |
540c2788 DL |
27 | Use mips4.h for RISCOS version 4; use s-bsd4-3.h with the BSD world. |
28 | Note that the proper m file for the Decstation is pmax.h. | |
20c428fd JB |
29 | NOTE-END */ |
30 | ||
74d3f806 KH |
31 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word |
32 | is the most significant byte. */ | |
33 | ||
540c2788 | 34 | #if ! (defined (__MIPSEL__) || defined (MIPSEL) || defined (_MIPSEL)) |
74d3f806 | 35 | #define WORDS_BIG_ENDIAN |
540c2788 | 36 | #endif |
74d3f806 | 37 | |
20c428fd JB |
38 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
39 | * group of arguments and treat it as an array of the arguments. */ | |
40 | ||
41 | #define NO_ARG_ARRAY | |
42 | ||
43 | /* Define WORD_MACHINE if addresses and such have | |
44 | * to be corrected before they can be used as byte counts. */ | |
45 | ||
46 | #undef WORD_MACHINE | |
47 | ||
ec558adc JB |
48 | /* Define how to take a char and sign-extend into an int. |
49 | On machines where char is signed, this is a no-op. */ | |
50 | ||
51 | #define SIGN_EXTEND_CHAR(c) ((signed char)(c)) | |
52 | ||
20c428fd JB |
53 | /* Now define a symbol for the cpu type, if your compiler |
54 | does not define it automatically: | |
55 | Ones defined so far include vax, m68000, ns16000, pyramid, | |
56 | orion, tahoe, APOLLO and many others */ | |
57 | #ifndef mips | |
58 | # define mips | |
59 | #endif | |
60 | ||
61 | /* Use type int rather than a union, to represent Lisp_Object */ | |
62 | /* This is desirable for most machines. */ | |
63 | ||
64 | #define NO_UNION_TYPE | |
65 | ||
66 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
67 | the 24-bit bit field into an int. In other words, if bit fields | |
68 | are always unsigned. | |
69 | ||
70 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
71 | ||
72 | #define EXPLICIT_SIGN_EXTEND | |
73 | ||
74 | /* Data type of load average, as read out of kmem. */ | |
75 | ||
76 | #define LOAD_AVE_TYPE long | |
77 | ||
78 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
79 | ||
80 | #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / 256.0) | |
81 | ||
96160d21 JB |
82 | /* CDC EP/IX 1.4.3 uses /unix */ |
83 | ||
f5e7cf48 | 84 | #ifndef __linux__ |
96160d21 JB |
85 | #undef KERNEL_FILE |
86 | #define KERNEL_FILE "/unix" | |
f5e7cf48 | 87 | #endif /* not __linux__ */ |
96160d21 | 88 | |
20c428fd JB |
89 | /* Define CANNOT_DUMP on machines where unexec does not work. |
90 | Then the function dump-emacs will not be defined | |
91 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
92 | ||
93 | #undef CANNOT_DUMP | |
94 | ||
95 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
96 | pure and impure space as loaded can vary, and even their | |
97 | relative order cannot be relied on. | |
98 | ||
99 | Otherwise Emacs assumes that text space precedes data space, | |
100 | numerically. */ | |
101 | ||
102 | /* #define VIRT_ADDR_VARIES */ | |
103 | ||
20c428fd JB |
104 | /* Define NO_REMAP if memory segmentation makes it not work well |
105 | to change the boundary between the text section and data section | |
106 | when Emacs is dumped. If you define this, the preloaded Lisp | |
107 | code will not be sharable; but that's better than failing completely. */ | |
108 | ||
109 | #define NO_REMAP | |
110 | ||
111 | /* This machine requires completely different unexec code | |
112 | which lives in a separate file. Specify the file name. */ | |
113 | ||
f5e7cf48 | 114 | #ifndef __linux__ |
57fdbf40 | 115 | #undef UNEXEC |
20c428fd | 116 | #define UNEXEC unexmips.o |
f5e7cf48 | 117 | #endif /* not __linux__ */ |
20c428fd JB |
118 | |
119 | /* Describe layout of the address space in an executing process. */ | |
120 | ||
f5e7cf48 RS |
121 | #ifdef __linux__ |
122 | #define TEXT_START 0x00400000 | |
123 | #define DATA_START 0x10000000 | |
124 | #define DATA_SEG_BITS 0x10000000 | |
125 | #else /* not __linux__ */ | |
20c428fd JB |
126 | #define TEXT_START 0x400000 |
127 | #define DATA_START 0x800000 | |
f5e7cf48 | 128 | #endif /* __linux__ */ |
20c428fd JB |
129 | |
130 | /* Alter some of the options used when linking. */ | |
131 | ||
f5e7cf48 | 132 | #if !defined(NEWSOS5) && !defined(__linux__) |
6df54671 | 133 | #ifdef BSD_SYSTEM |
20c428fd | 134 | |
ec558adc | 135 | /* DECstations don't have this library. |
20c428fd JB |
136 | #define LIBS_MACHINE -lmld */ |
137 | ||
138 | #define LD_SWITCH_MACHINE -D 800000 | |
139 | #define LIBS_DEBUG | |
140 | ||
1e6a9aaf GM |
141 | #if defined (__NetBSD__) || defined (__OpenBSD__) |
142 | #else /* bsd with elf */ | |
ec558adc | 143 | #define LINKER /bsd43/bin/ld |
1e6a9aaf | 144 | #endif /* bsd with elf */ |
6df54671 | 145 | #else /* not BSD_SYSTEM */ |
20c428fd | 146 | |
42f30377 RS |
147 | #if defined(__GNUC__) && defined(_ABIN32) |
148 | #define LIBS_MACHINE | |
149 | #else | |
20c428fd | 150 | #define LIBS_MACHINE -lmld |
42f30377 RS |
151 | #endif |
152 | ||
20c428fd JB |
153 | #define LD_SWITCH_MACHINE -D 800000 -g3 |
154 | #define START_FILES pre-crt0.o /usr/lib/crt1.o | |
155 | #define LIB_STANDARD -lbsd -lc /usr/lib/crtn.o | |
156 | #define LIBS_TERMCAP -lcurses | |
157 | ||
ec558adc | 158 | #define C_SWITCH_MACHINE -I/usr/include/bsd |
20c428fd JB |
159 | #define C_DEBUG_SWITCH -O -g3 |
160 | ||
6df54671 | 161 | #endif /* not BSD_SYSTEM */ |
f5e7cf48 | 162 | #endif /* not NEWSOS5 && not __linux__ */ |
20c428fd JB |
163 | \f |
164 | /* The standard definitions of these macros would work ok, | |
165 | but these are faster because the constants are short. */ | |
166 | ||
5964b664 | 167 | #define XUINT(a) (((unsigned)(a) << (BITS_PER_INT-VALBITS)) >> (BITS_PER_INT-VALBITS)) |
20c428fd | 168 | |
ec558adc JB |
169 | #define XSET(var, type, ptr) \ |
170 | ((var) = \ | |
171 | ((int)(type) << VALBITS) \ | |
5964b664 | 172 | + (((unsigned) (ptr) << (BITS_PER_INT-VALBITS)) >> (BITS_PER_INT-VALBITS))) |
ec558adc | 173 | \f |
f5e7cf48 | 174 | #if !defined (NEWSOS5) && !defined (__linux__) |
20c428fd JB |
175 | #ifdef USG |
176 | ||
177 | /* Cancel certain parts of standard sysV support. */ | |
178 | #undef NONSYSTEM_DIR_LIBRARY | |
179 | #define SYSV_SYSTEM_DIR | |
180 | #undef static | |
181 | ||
182 | /* Don't try to use SIGIO or FIONREAD even though they are defined. */ | |
332d98c7 | 183 | #define BROKEN_SIGIO |
20c428fd JB |
184 | #define BROKEN_FIONREAD |
185 | ||
186 | /* Describe special kernel features. */ | |
187 | ||
188 | #define HAVE_SYSVIPC | |
189 | ||
ec558adc | 190 | #if defined(emacs) && !defined(INHIBIT_BSD_TIME) |
20c428fd JB |
191 | #include <bsd/sys/time.h> |
192 | #endif | |
193 | ||
5df58331 KH |
194 | /* The `select' in the system won't work for pipes, so don't use it. */ |
195 | #undef HAVE_SELECT /* override configuration decision */ | |
20c428fd | 196 | |
20c428fd JB |
197 | #define HAVE_PTYS |
198 | #define HAVE_SOCKETS | |
199 | ||
200 | #undef NOMULTIPLEJOBS | |
20c428fd JB |
201 | |
202 | /* ??? */ | |
203 | #define IRIS | |
204 | ||
ec558adc | 205 | #endif /* USG */ |
20c428fd | 206 | |
6df54671 | 207 | #ifdef BSD_SYSTEM |
20c428fd JB |
208 | #define COFF |
209 | #define TERMINFO | |
210 | #undef MAIL_USE_FLOCK /* Someone should check this. */ | |
211 | #undef HAVE_UNION_WAIT | |
6df54671 | 212 | #endif /* BSD_SYSTEM */ |
ec558adc | 213 | |
f5e7cf48 | 214 | #endif /* not NEWSOS5 && not __linux__ */ |
6b61353c KH |
215 | |
216 | /* arch-tag: 8fd020ee-78a7-4d87-96ce-6129f52f7bee | |
217 | (do not change this comment) */ |