Mercurial > projects > ldc
annotate druntime/src/compiler/ldc/memory.d @ 1458:e0b2d67cfe7c
Added druntime (this should be removed once it works).
author | Robert Clipsham <robert@octarineparrot.com> |
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date | Tue, 02 Jun 2009 17:43:06 +0100 |
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1458
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Added druntime (this should be removed once it works).
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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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Added druntime (this should be removed once it works).
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125 { |
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Added druntime (this should be removed once it works).
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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 } |
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138 else version( linux ) |
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Added druntime (this should be removed once it works).
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139 { |
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140 extern (C) |
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141 { |
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142 extern __gshared |
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143 { |
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144 int _data; |
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145 int __data_start; |
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146 int _end; |
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147 int _data_start__; |
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148 int _data_end__; |
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149 int _bss_start__; |
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150 int _bss_end__; |
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151 int __fini_array_end; |
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152 } |
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153 } |
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154 |
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155 alias __data_start Data_Start; |
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156 alias _end Data_End; |
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157 } |
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158 else version( OSX ) |
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Added druntime (this should be removed once it works).
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159 { |
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160 extern (C) void _d_osx_image_init(); |
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161 } |
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162 else version( FreeBSD ) |
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Added druntime (this should be removed once it works).
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163 { |
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164 extern (C) |
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165 { |
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166 extern __gshared |
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167 { |
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|
168 int etext; |
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169 int _end; |
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170 } |
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171 } |
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172 } |
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173 else version( Solaris ) |
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174 { |
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Added druntime (this should be removed once it works).
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175 extern (C) |
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176 { |
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|
177 extern __gshared |
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178 { |
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|
179 int etext; |
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180 int _end; |
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181 } |
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182 } |
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183 } |
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|
184 } |
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185 |
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186 |
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|
187 void initStaticDataGC() |
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|
188 { |
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Added druntime (this should be removed once it works).
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|
189 version( Windows ) |
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|
190 { |
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parents:
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|
191 gc_addRange( &_xi_a, cast(size_t) &_end - cast(size_t) &_xi_a ); |
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192 } |
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parents:
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193 else version( linux ) |
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Added druntime (this should be removed once it works).
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|
194 { |
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|
195 gc_addRange( &__data_start, cast(size_t) &_end - cast(size_t) &__data_start ); |
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196 } |
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Added druntime (this should be removed once it works).
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197 else version( OSX ) |
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Added druntime (this should be removed once it works).
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|
198 { |
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changeset
|
199 _d_osx_image_init(); |
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|
200 } |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
changeset
|
201 else version( FreeBSD ) |
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Added druntime (this should be removed once it works).
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parents:
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|
202 { |
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parents:
diff
changeset
|
203 gc_addRange( &etext, cast(size_t) &_end - cast(size_t) &etext ); |
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Added druntime (this should be removed once it works).
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|
204 } |
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Added druntime (this should be removed once it works).
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parents:
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|
205 else version( Solaris ) |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
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|
206 { |
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Added druntime (this should be removed once it works).
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parents:
diff
changeset
|
207 gc_addRange( &etext, cast(size_t) &_end - cast(size_t) &etext ); |
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Added druntime (this should be removed once it works).
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parents:
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|
208 } |
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Added druntime (this should be removed once it works).
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|
209 else |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
diff
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|
210 { |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
parents:
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changeset
|
211 static assert( false, "Operating system not supported." ); |
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Added druntime (this should be removed once it works).
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|
212 } |
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Added druntime (this should be removed once it works).
Robert Clipsham <robert@octarineparrot.com>
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|
213 } |