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annotate druntime/src/compiler/dmd/memory.d @ 1458:e0b2d67cfe7c

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Added druntime (this should be removed once it works).
author Robert Clipsham <robert@octarineparrot.com>
date Tue, 02 Jun 2009 17:43:06 +0100
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1458
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1 /**
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2 * This module exposes functionality for inspecting and manipulating memory.
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3 *
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4 * Copyright: Copyright Digital Mars 2000 - 2009.
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5 * License: <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>.
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6 * Authors: Walter Bright, Sean Kelly
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7 *
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8 * Copyright Digital Mars 2000 - 2009.
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9 * Distributed under the Boost Software License, Version 1.0.
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10 * (See accompanying file LICENSE_1_0.txt or copy at
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11 * http://www.boost.org/LICENSE_1_0.txt)
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12 */
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13 module rt.memory;
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14
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15
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16 private
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17 {
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18 version( linux )
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19 {
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20 version = SimpleLibcStackEnd;
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21
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22 version( SimpleLibcStackEnd )
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23 {
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24 extern (C) extern __gshared void* __libc_stack_end;
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25 }
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26 }
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27 version( FreeBSD )
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28 {
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29 version = SimpleLibcStackEnd;
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30
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31 version( SimpleLibcStackEnd )
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32 {
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33 extern (C) extern __gshared void* __libc_stack_end;
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34 }
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35 }
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36 version( Solaris )
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37 {
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38 version = SimpleLibcStackEnd;
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39
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40 version( SimpleLibcStackEnd )
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41 {
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42 extern (C) extern __gshared void* __libc_stack_end;
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43 }
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44 }
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45 extern (C) void gc_addRange( void* p, size_t sz );
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46 extern (C) void gc_removeRange( void* p );
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47 }
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48
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49
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50 /**
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51 *
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52 */
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53 extern (C) void* rt_stackBottom()
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54 {
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55 version( Windows )
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56 {
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57 asm
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58 {
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59 naked;
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60 mov EAX,FS:4;
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61 ret;
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62 }
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63 }
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64 else version( linux )
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65 {
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66 version( SimpleLibcStackEnd )
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67 {
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68 return __libc_stack_end;
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69 }
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70 else
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71 {
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72 // See discussion: http://autopackage.org/forums/viewtopic.php?t=22
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73 static void** libc_stack_end;
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74
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75 if( libc_stack_end == libc_stack_end.init )
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76 {
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77 void* handle = dlopen( null, RTLD_NOW );
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78 libc_stack_end = cast(void**) dlsym( handle, "__libc_stack_end" );
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79 dlclose( handle );
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80 }
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81 return *libc_stack_end;
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82 }
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83 }
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84 else version( OSX )
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85 {
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86 return cast(void*) 0xc0000000;
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87 }
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88 else version( FreeBSD )
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89 {
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90 return __libc_stack_end;
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91 }
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92 else version( Solaris )
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93 {
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94 return __libc_stack_end;
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95 }
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96 else
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97 {
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98 static assert( false, "Operating system not supported." );
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99 }
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100 }
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101
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102
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103 /**
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104 *
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105 */
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106 extern (C) void* rt_stackTop()
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107 {
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108 version( D_InlineAsm_X86 )
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109 {
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110 asm
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111 {
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112 naked;
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113 mov EAX, ESP;
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114 ret;
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115 }
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116 }
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117 else
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118 {
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119 static assert( false, "Architecture not supported." );
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120 }
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121 }
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122
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123
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124 private
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125 {
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126 version( Windows )
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127 {
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128 extern (C)
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129 {
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130 extern __gshared
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131 {
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132 int _xi_a; // &_xi_a just happens to be start of data segment
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133 int _edata; // &_edata is start of BSS segment
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134 int _end; // &_end is past end of BSS
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135 }
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136 }
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137 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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138 else version( linux )
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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139 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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140 extern (C)
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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141 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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142 extern __gshared
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Robert Clipsham <robert@octarineparrot.com>
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143 {
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Robert Clipsham <robert@octarineparrot.com>
parents:
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144 int _data;
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Robert Clipsham <robert@octarineparrot.com>
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145 int __data_start;
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Robert Clipsham <robert@octarineparrot.com>
parents:
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146 int _end;
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Robert Clipsham <robert@octarineparrot.com>
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147 int _data_start__;
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Robert Clipsham <robert@octarineparrot.com>
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148 int _data_end__;
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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149 int _bss_start__;
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Robert Clipsham <robert@octarineparrot.com>
parents:
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150 int _bss_end__;
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Robert Clipsham <robert@octarineparrot.com>
parents:
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151 int __fini_array_end;
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Robert Clipsham <robert@octarineparrot.com>
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152 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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153 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
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154
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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155 alias __data_start Data_Start;
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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156 alias _end Data_End;
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Robert Clipsham <robert@octarineparrot.com>
parents:
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157 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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158 else version( OSX )
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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159 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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160 extern (C) void _d_osx_image_init();
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Robert Clipsham <robert@octarineparrot.com>
parents:
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161 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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162 else version( FreeBSD )
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
163 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
164 extern (C)
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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165 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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166 extern __gshared
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Robert Clipsham <robert@octarineparrot.com>
parents:
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167 {
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Robert Clipsham <robert@octarineparrot.com>
parents:
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168 int etext;
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Robert Clipsham <robert@octarineparrot.com>
parents:
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169 int _end;
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Robert Clipsham <robert@octarineparrot.com>
parents:
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170 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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171 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
172 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
173 else version( Solaris )
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
174 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
175 extern (C)
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
176 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
177 extern __gshared
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Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
178 {
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Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
179 int etext;
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Robert Clipsham <robert@octarineparrot.com>
parents:
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180 int _end;
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Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
181 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
182 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
183 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
184 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
185
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
186
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
187 void initStaticDataGC()
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
188 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
189 version( Windows )
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
190 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
191 gc_addRange( &_xi_a, cast(size_t) &_end - cast(size_t) &_xi_a );
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Robert Clipsham <robert@octarineparrot.com>
parents:
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192 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
193 else version( linux )
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
194 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
195 gc_addRange( &__data_start, cast(size_t) &_end - cast(size_t) &__data_start );
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Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
196 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
197 else version( OSX )
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
198 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
199 _d_osx_image_init();
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
200 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
201 else version( FreeBSD )
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
202 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
203 gc_addRange( &etext, cast(size_t) &_end - cast(size_t) &etext );
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
204 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
205 else version( Solaris )
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
206 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
207 gc_addRange( &etext, cast(size_t) &_end - cast(size_t) &etext );
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
208 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
209 else
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
210 {
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
211 static assert( false, "Operating system not supported." );
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
212 }
e0b2d67cfe7c Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff changeset
213 }