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428
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1 /* machine description file for Power PC
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2 Copyright (C) 1987, 1994 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Board of Trustees, University of Illinois
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 2, or (at your option)
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10 any later version.
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11
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12 XEmacs is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* The following line tells the configuration script what sort of
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23 operating system this machine is likely to run.
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24 USUAL-OPSYS="solaris2-5" */
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25
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26 #ifdef NOT_C_CODE
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27 # define POWERPC
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28 #else
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29 # ifndef powerpc
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30 # define powerpc
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31 # endif
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32 #endif
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33
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34 #ifdef __GNUC__
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35 # define C_OPTIMIZE_SWITCH "-O"
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36 #else
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37 /* XEmacs change */
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38 # ifdef USE_LCC
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39 # define C_OPTIMIZE_SWITCH "-O4 -Oi"
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40 # else
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41 /* This level of optimization is reported to work. */
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42 # define C_OPTIMIZE_SWITCH "-O2"
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43 # endif
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44 #endif
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45
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46 /* XINT must explicitly sign-extend */
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47
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48 #define EXPLICIT_SIGN_EXTEND
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49
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50 #ifndef __linux__
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51 /* Data type of load average, as read out of kmem. */
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52
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53 #define LOAD_AVE_TYPE long
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54
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55 /* Convert that into an integer that is 100 for a load average of 1.0 */
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56
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57 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
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58 #else /* mklinux */
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59
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60 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
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61 * group of arguments and treat it as an array of the arguments. */
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62
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63 #define NO_ARG_ARRAY
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64
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65 /* Define addresses, macros, change some setup for dump */
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66
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67 #define NO_REMAP
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68
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69 #if 0
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70 #define TEXT_START 0x00001000
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71 #define TEXT_END 0
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72 #define DATA_START 0x01000000
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73 #define DATA_END 0
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74
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75 /* The data segment in this machine always starts at address 0x10000000.
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76 An address of data cannot be stored correctly in a Lisp object;
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77 we always lose the high bits. We must tell XPNTR to add them back. */
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78
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79 #define DATA_SEG_BITS 0x10000000
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80 #endif
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81
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82 /* Use type int rather than a union, to represent Lisp_Object */
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83
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84 /* #define NO_UNION_TYPE */
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85
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86 #ifdef CANNOT_DUMP
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87 /* Define shared memory segment symbols */
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88
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89 #define PURE_SEG_BITS 0x30000000
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90
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91 /* Use shared memory. */
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92 /* This is turned off because it does not always work. See etc/AIX.DUMP. */
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93 /* #define HAVE_SHM */
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94 #define SHMKEY 5305035 /* used for shared memory code segments */
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95 #endif /* CANNOT_DUMP */
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96
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97 #define N_BADMAG(x) BADMAG(x)
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98 #define N_TXTOFF(x) A_TEXTPOS(x)
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99 #define N_SYMOFF(x) A_SYMPOS(x)
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100 /* #define A_TEXT_OFFSET(HDR) sizeof(HDR) */
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101 /* #define ADJUST_EXEC_HEADER \
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102 unexec_text_start += sizeof(hdr); \
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103 unexec_data_start = ohdr.a_dbase
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104 */
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105 #undef ADDR_CORRECT
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106 #define ADDR_CORRECT(x) ((int)(x))
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107
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108 /* Define C_ALLOCA if this machine does not support a true alloca
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109 and the one written in C should be used instead.
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110 Define HAVE_ALLOCA to say that the system provides a properly
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111 working alloca function and it should be used.
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112 Define neither one if an assembler-language alloca
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113 in the file alloca.s should be used. */
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114
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115 #define HAVE_ALLOCA
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116
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117 /* Specify the font for X to use.
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118 This used to be Rom14.500; that's nice on the X server shipped with
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119 the RS/6000, but it's not available on other servers. */
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120 #define X_DEFAULT_FONT "fixed"
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121
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122 /* Here override various assumptions in ymakefile */
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123
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124 /* #undef START_FILES */
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125 /* #define HAVE_SYSVIPC */
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126 /* #define HAVE_GETWD */
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127
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128 /* Don't try to include sioctl.h or ptem.h. */
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129 #undef NEED_SIOCTL
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130 #undef NEED_PTEM_H
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131
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132 #define ORDINARY_LINK
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133 /*#define LD_SWITCH_MACHINE -T ${srcdir}/src/ppc.ldscript*/
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134 #endif
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