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1 /* m- file for Mips machines.
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2 Copyright (C) 1987, 1992, 1993, 1995 Free Software Foundation, Inc.
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3
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4 This file contains some changes for our SVR4 based SINIX-Mips 5.4.
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5 I hope this is helpful to port the emacs to our RM?00 series and
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6 maybe to the DC/OSx (Mips-based) machines of Pyramid Inc.
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7 (Marco.Walther@mch.sni.de)
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8
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9 This file is part of GNU Emacs.
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10
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11 GNU Emacs is free software; you can redistribute it and/or modify
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12 it under the terms of the GNU General Public License as published by
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13 the Free Software Foundation; either version 2, or (at your option)
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14 any later version.
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15
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16 GNU Emacs is distributed in the hope that it will be useful,
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17 but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 GNU General Public License for more details.
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20
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21 You should have received a copy of the GNU General Public License
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22 along with XEmacs; see the file COPYING. If not, write to
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23 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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24 Boston, MA 02111-1307, USA. */
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25
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26 /* Synched up with: FSF 19.31. */
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27
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28 /* The following line tells the configuration script what sort of
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29 operating system this machine is likely to run.
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30 USUAL-OPSYS="note"
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31
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32 NOTE-START
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33 Use m-mips4.h for RISCOS version 4; use s-bsd4-3.h with the BSD world.
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34 Note that the proper m- file for the Decstation is m-pmax.h.
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35 This is the m- file for SNI RM*00 machines. Use s- sinix5-4.h file!
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36 With this the file mips-siemens.h is obsolete.
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37 NOTE-END */
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38
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39 /* Define WORD_MACHINE if addresses and such have
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40 * to be corrected before they can be used as byte counts. */
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41
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42 #undef WORD_MACHINE
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43
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44 /* Define how to take a char and sign-extend into an int.
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45 On machines where char is signed, this is a no-op. */
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46
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47 #define SIGN_EXTEND_CHAR(c) ((signed char)(c))
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48
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49 /* Now define a symbol for the cpu type, if your compiler
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50 does not define it automatically:
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51 Ones defined so far include vax, m68000, ns16000, pyramid,
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52 orion, tahoe, APOLLO and many others */
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53 #ifndef mips
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54 # define mips
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55 #endif
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56
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57 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
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58 the 24-bit bit field into an int. In other words, if bit fields
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59 are always unsigned.
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60
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61 If you use NO_UNION_TYPE, this flag does not matter. */
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62
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63 #define EXPLICIT_SIGN_EXTEND
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64
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65 /* Data type of load average, as read out of kmem. */
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66
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67 #define LOAD_AVE_TYPE long
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68
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69 /* Convert that into an integer that is 100 for a load average of 1.0 */
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70
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71 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / 256.0)
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72
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73 /* CDC EP/IX 1.4.3 uses /unix */
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74
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75 #undef KERNEL_FILE
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76 #define KERNEL_FILE "/unix"
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77
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78 /* Define CANNOT_DUMP on machines where unexec does not work.
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79 Then the function dump-emacs will not be defined
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80 and temacs will do (load "loadup") automatically unless told otherwise. */
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81
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82 #undef CANNOT_DUMP
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83
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84 /* Define VIRT_ADDR_VARIES if the virtual addresses of
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85 pure and impure space as loaded can vary, and even their
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86 relative order cannot be relied on.
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87
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88 Otherwise Emacs assumes that text space precedes data space,
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89 numerically. */
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90
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91 /* #define VIRT_ADDR_VARIES */
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92
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93 /* Define C_ALLOCA if this machine does not support a true alloca
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94 and the one written in C should be used instead.
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95 Define HAVE_ALLOCA to say that the system provides a properly
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96 working alloca function and it should be used.
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97 Define neither one if an assembler-language alloca
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98 in the file alloca.s should be used. */
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99
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100 #ifdef __GNUC__
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101 #define HAVE_ALLOCA
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102 #else
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103 #define C_ALLOCA
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104 #endif
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105
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106 /* Define NO_REMAP if memory segmentation makes it not work well
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107 to change the boundary between the text section and data section
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108 when Emacs is dumped. If you define this, the preloaded Lisp
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109 code will not be sharable; but that's better than failing completely. */
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110
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111 #define NO_REMAP
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112
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113 /* Describe layout of the address space in an executing process. */
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114 /* MARCO ???
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115 */
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116 #define TEXT_START 0x400000
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117 /*
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118 #define DATA_START 0x10000000
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119 #define DATA_SEG_BITS 0x10000000
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120 */
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121 #ifdef UNEXEC
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122 #undef UNEXEC
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123 #endif
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163
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124 #define UNEXEC "unexsni.o"
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0
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125
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126 #undef ORDINARY_LINK
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127
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128 #undef LIBS_DEBUG
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129
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130 /* Alter some of the options used when linking. */
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131
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173
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132 #undef LIBS_MACHINE
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133 /* #define LIBS_MACHINE "-lmld" */ /* mrb */
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163
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134 #define START_FILES "pre-crt0.o /usr/ccs/lib/crt1.o /usr/ccs/lib/crti.o /usr/ccs/lib/values-Xt.o"
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135
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136 #ifdef LIB_STANDARD
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137 #undef LIB_STANDARD
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138 #endif
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163
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139 #define LIB_STANDARD "-lc /usr/ccs/lib/crtn.o"
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0
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140
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141 #ifdef __GNUC__
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142 #define C_DEBUG_SWITCH
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163
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143 #define C_OPTIMIZE_SWITCH "-O"
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144 #define LD_SWITCH_MACHINE
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145 #else
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163
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146 #define C_DEBUG_SWITCH "-DSYSV"
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147 #define C_OPTIMIZE_SWITCH "-DSYSV "
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148 #define LD_SWITCH_MACHINE
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149 #endif
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