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Apply BlueZeniX's patch for OpenSolaris compatibility. Fixes #158.
author Christian Kamm <kamm incasoftware de>
date Sun, 04 Jan 2009 15:49:28 +0100
parents 661384d6a936
children 77a3d6945f81
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443
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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 (C) 2005-2006 Digital Mars, www.digitalmars.com.
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5 * All rights reserved.
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6 * License:
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7 * This software is provided 'as-is', without any express or implied
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8 * warranty. In no event will the authors be held liable for any damages
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9 * arising from the use of this software.
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10 *
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11 * Permission is granted to anyone to use this software for any purpose,
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12 * including commercial applications, and to alter it and redistribute it
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13 * freely, in both source and binary form, subject to the following
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14 * restrictions:
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15 *
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16 * o The origin of this software must not be misrepresented; you must not
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17 * claim that you wrote the original software. If you use this software
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18 * in a product, an acknowledgment in the product documentation would be
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19 * appreciated but is not required.
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20 * o Altered source versions must be plainly marked as such, and must not
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21 * be misrepresented as being the original software.
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22 * o This notice may not be removed or altered from any source
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23 * distribution.
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24 * Authors: Walter Bright, Sean Kelly
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25 */
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26 module memory;
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27
577
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28 version = GC_Use_Dynamic_Ranges;
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29
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30 // does Posix suffice?
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31 version(Posix)
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32 {
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33 version = GC_Use_Data_Proc_Maps;
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34 }
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35
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36 version(GC_Use_Data_Proc_Maps)
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37 {
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38 version(Posix) {} else {
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39 static assert(false, "Proc Maps only supported on Posix systems");
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40 }
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41 private import tango.stdc.posix.unistd;
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42 private import tango.stdc.posix.fcntl;
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43 private import tango.stdc.string;
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44
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45 version = GC_Use_Dynamic_Ranges;
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46 }
443
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47
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48 private
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49 {
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50 version( linux )
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51 {
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52 //version = SimpleLibcStackEnd;
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53
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54 version( SimpleLibcStackEnd )
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55 {
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56 extern (C) extern void* __libc_stack_end;
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57 }
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58 else
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59 {
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60 import tango.stdc.posix.dlfcn;
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61 }
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62 }
664
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63 version(LDC)
443
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64 {
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65 pragma(intrinsic, "llvm.frameaddress")
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66 {
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67 void* llvm_frameaddress(uint level=0);
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68 }
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69 }
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70 }
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71
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72
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73 /**
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74 *
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75 */
872
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76
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77 version( solaris ) {
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78 version(X86_64) {
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79 extern (C) void* _userlimit;
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80 }
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81 }
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82
443
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83 extern (C) void* rt_stackBottom()
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84 {
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85 version( Win32 )
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86 {
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87 void* bottom;
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88 asm
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89 {
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90 mov EAX, FS:4;
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91 mov bottom, EAX;
443
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92 }
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93 return bottom;
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94 }
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95 else version( linux )
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96 {
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97 version( SimpleLibcStackEnd )
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98 {
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99 return __libc_stack_end;
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100 }
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101 else
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102 {
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103 // See discussion: http://autopackage.org/forums/viewtopic.php?t=22
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104 static void** libc_stack_end;
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105
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106 if( libc_stack_end == libc_stack_end.init )
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107 {
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108 void* handle = dlopen( null, RTLD_NOW );
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109 libc_stack_end = cast(void**) dlsym( handle, "__libc_stack_end" );
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110 dlclose( handle );
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111 }
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112 return *libc_stack_end;
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113 }
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114 }
558
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diff changeset
115 else version( darwin )
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diff changeset
116 {
559
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parents: 558
diff changeset
117 // darwin has a fixed stack bottom
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diff changeset
118 return cast(void*) 0xc0000000;
558
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diff changeset
119 }
872
aa953cc960b6 Apply BlueZeniX's patch for OpenSolaris compatibility. Fixes #158.
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120 else version( solaris )
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diff changeset
121 {
aa953cc960b6 Apply BlueZeniX's patch for OpenSolaris compatibility. Fixes #158.
Christian Kamm <kamm incasoftware de>
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diff changeset
122 version(X86_64) {
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Christian Kamm <kamm incasoftware de>
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123 return _userlimit;
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parents: 794
diff changeset
124 }
aa953cc960b6 Apply BlueZeniX's patch for OpenSolaris compatibility. Fixes #158.
Christian Kamm <kamm incasoftware de>
parents: 794
diff changeset
125 else {
aa953cc960b6 Apply BlueZeniX's patch for OpenSolaris compatibility. Fixes #158.
Christian Kamm <kamm incasoftware de>
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diff changeset
126 // <sys/vmparam.h>
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diff changeset
127 return cast(void*) 0x8048000;
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128 }
aa953cc960b6 Apply BlueZeniX's patch for OpenSolaris compatibility. Fixes #158.
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129 }
443
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130 else
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131 {
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132 static assert( false, "Operating system not supported." );
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133 }
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134 }
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135
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136
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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137 /**
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138 *
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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139 */
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140 extern (C) void* rt_stackTop()
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parents:
diff changeset
141 {
664
eef8ac26c66c Some missed LLVMDC -> LDC.
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parents: 578
diff changeset
142 version(LDC)
443
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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143 {
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144 return llvm_frameaddress();
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145 }
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146 else version( D_InlineAsm_X86 )
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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147 {
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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148 asm
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
149 {
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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150 naked;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
151 mov EAX, ESP;
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parents:
diff changeset
152 ret;
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153 }
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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154 }
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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155 else
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
156 {
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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parents:
diff changeset
157 static assert( false, "Architecture not supported." );
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parents:
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158 }
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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159 }
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
160
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
161
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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162 private
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
163 {
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
164 version( Win32 )
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
165 {
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parents:
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166 extern (C)
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parents:
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167 {
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parents:
diff changeset
168 extern int _data_start__;
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diff changeset
169 extern int _bss_end__;
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170
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parents:
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171 alias _data_start__ Data_Start;
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172 alias _bss_end__ Data_End;
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173 }
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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parents:
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174 }
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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parents:
diff changeset
175 else version( linux )
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
176 {
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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parents:
diff changeset
177 extern (C)
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parents:
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178 {
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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parents:
diff changeset
179 extern int _data;
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parents:
diff changeset
180 extern int __data_start;
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parents:
diff changeset
181 extern int _end;
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parents:
diff changeset
182 extern int _data_start__;
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parents:
diff changeset
183 extern int _data_end__;
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parents:
diff changeset
184 extern int _bss_start__;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
185 extern int _bss_end__;
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
186 extern int __fini_array_end;
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187 }
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
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188
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parents:
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189 alias __data_start Data_Start;
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diff changeset
190 alias _end Data_End;
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parents:
diff changeset
191 }
577
68be7408a0db Merge Dynamic_Ranges and Data_Proc_Maps from GDC runtime.
Christian Kamm <kamm incasoftware de>
parents: 559
diff changeset
192
68be7408a0db Merge Dynamic_Ranges and Data_Proc_Maps from GDC runtime.
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parents: 559
diff changeset
193 version( GC_Use_Dynamic_Ranges )
558
02fb65cddc3e Merge rest of patch from #72.
Christian Kamm <kamm incasoftware de>
parents: 443
diff changeset
194 {
577
68be7408a0db Merge Dynamic_Ranges and Data_Proc_Maps from GDC runtime.
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diff changeset
195 private import tango.stdc.stdlib;
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parents: 559
diff changeset
196
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parents: 559
diff changeset
197 struct DataSeg
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parents: 559
diff changeset
198 {
68be7408a0db Merge Dynamic_Ranges and Data_Proc_Maps from GDC runtime.
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diff changeset
199 void* beg;
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diff changeset
200 void* end;
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diff changeset
201 }
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parents: 559
diff changeset
202
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parents: 559
diff changeset
203 DataSeg* allSegs = null;
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parents: 559
diff changeset
204 size_t numSegs = 0;
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Christian Kamm <kamm incasoftware de>
parents: 559
diff changeset
205
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parents: 559
diff changeset
206 extern (C) void _d_gc_add_range( void* beg, void* end )
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parents: 559
diff changeset
207 {
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parents: 559
diff changeset
208 void* ptr = realloc( allSegs, (numSegs + 1) * DataSeg.sizeof );
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parents: 559
diff changeset
209
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parents: 559
diff changeset
210 if( ptr ) // if realloc fails, we have problems
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parents: 559
diff changeset
211 {
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parents: 559
diff changeset
212 allSegs = cast(DataSeg*) ptr;
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213 allSegs[numSegs].beg = beg;
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diff changeset
214 allSegs[numSegs].end = end;
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215 numSegs++;
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diff changeset
216 }
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parents: 559
diff changeset
217 }
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218
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219 extern (C) void _d_gc_remove_range( void* beg )
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parents: 559
diff changeset
220 {
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diff changeset
221 for( size_t pos = 0; pos < numSegs; ++pos )
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diff changeset
222 {
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diff changeset
223 if( beg == allSegs[pos].beg )
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diff changeset
224 {
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parents: 559
diff changeset
225 while( ++pos < numSegs )
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diff changeset
226 {
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diff changeset
227 allSegs[pos-1] = allSegs[pos];
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diff changeset
228 }
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diff changeset
229 numSegs--;
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diff changeset
230 return;
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diff changeset
231 }
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diff changeset
232 }
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parents: 559
diff changeset
233 }
558
02fb65cddc3e Merge rest of patch from #72.
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diff changeset
234 }
443
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235
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236 alias void delegate( void*, void* ) scanFn;
577
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237
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238 void* dataStart, dataEnd;
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239 }
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240
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241
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242 /**
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243 *
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244 */
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245 extern (C) void rt_scanStaticData( scanFn scan )
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246 {
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247 scan( dataStart, dataEnd );
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248
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249 version( GC_Use_Dynamic_Ranges )
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250 {
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251 for( size_t pos = 0; pos < numSegs; ++pos )
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252 {
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253 scan( allSegs[pos].beg, allSegs[pos].end );
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254 }
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255 }
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256 }
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257
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258 void initStaticDataPtrs()
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259 {
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260 const int S = (void*).sizeof;
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261
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262 // Can't assume the input addresses are word-aligned
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263 static void* adjust_up( void* p )
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264 {
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265 return p + ((S - (cast(size_t)p & (S-1))) & (S-1)); // cast ok even if 64-bit
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266 }
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267
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268 static void * adjust_down( void* p )
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269 {
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270 return p - (cast(size_t) p & (S-1));
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271 }
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272
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273 version( Win32 )
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274 {
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275 dataStart = adjust_up( &Data_Start );
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276 dataEnd = adjust_down( &Data_End );
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277 }
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278 else version( GC_Use_Data_Proc_Maps )
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279 {
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280 // TODO: Exclude zero-mapped regions
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281
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282 int fd = open("/proc/self/maps", O_RDONLY);
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283 ptrdiff_t count; // %% need to configure ret for read..
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284 char buf[2024];
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285 char* p;
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286 char* e;
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287 char* s;
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288 void* start;
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289 void* end;
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290
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291 p = buf.ptr;
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292 if (fd != -1)
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293 {
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294 while ( (count = read(fd, p, buf.sizeof - (p - buf.ptr))) > 0 )
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295 {
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296 e = p + count;
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297 p = buf.ptr;
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298 while (true)
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299 {
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300 s = p;
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301 while (p < e && *p != '\n')
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302 p++;
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303 if (p < e)
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304 {
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305 // parse the entry in [s, p)
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306 static if( S == 4 )
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307 {
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308 enum Ofs
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309 {
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310 Write_Prot = 19,
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311 Start_Addr = 0,
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312 End_Addr = 9,
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313 Addr_Len = 8,
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314 }
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315 }
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316 else static if( S == 8 )
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317 {
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318 enum Ofs
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319 {
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320 Write_Prot = 35,
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321 Start_Addr = 0,
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322 End_Addr = 9,
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323 Addr_Len = 17,
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324 }
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325 }
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326 else
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327 {
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328 static assert( false );
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329 }
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330
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331 // %% this is wrong for 64-bit:
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332 // uint strtoul(char *,char **,int);
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333
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334 if( s[Ofs.Write_Prot] == 'w' )
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335 {
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336 s[Ofs.Start_Addr + Ofs.Addr_Len] = '\0';
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337 s[Ofs.End_Addr + Ofs.Addr_Len] = '\0';
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338 start = cast(void*) strtoul(s + Ofs.Start_Addr, null, 16);
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339 end = cast(void*) strtoul(s + Ofs.End_Addr, null, 16);
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340
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341 // 1. Exclude anything overlapping [dataStart, dataEnd)
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342 // 2. Exclude stack
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343 if ( ( !dataEnd ||
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344 !( dataStart >= start && dataEnd <= end ) ) &&
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345 !( &buf[0] >= start && &buf[0] < end ) )
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346 {
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347 // we already have static data from this region. anything else
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348 // is heap (%% check)
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349 debug (ProcMaps) printf("Adding map range %p 0%p\n", start, end);
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350 _d_gc_add_range(start, end);
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351 }
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352 }
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353 p++;
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354 }
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355 else
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356 {
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357 count = p - s;
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358 memmove(buf.ptr, s, cast(size_t)count);
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359 p = buf.ptr + count;
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360 break;
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361 }
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362 }
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363 }
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364 close(fd);
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365 }
443
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366 }
577
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367 else version(linux)
558
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368 {
577
68be7408a0db Merge Dynamic_Ranges and Data_Proc_Maps from GDC runtime.
Christian Kamm <kamm incasoftware de>
parents: 559
diff changeset
369 dataStart = adjust_up( &Data_Start );
68be7408a0db Merge Dynamic_Ranges and Data_Proc_Maps from GDC runtime.
Christian Kamm <kamm incasoftware de>
parents: 559
diff changeset
370 dataEnd = adjust_down( &Data_End );
558
02fb65cddc3e Merge rest of patch from #72.
Christian Kamm <kamm incasoftware de>
parents: 443
diff changeset
371 }
443
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
372 else
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
373 {
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
374 static assert( false, "Operating system not supported." );
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
375 }
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
376 }