annotate dmd/backend/glue.d @ 165:25ede4f66bda

Temporarily disabled GC (again) because phobos fails to compile with it (looks like some ObjSymbols are being falsely collected, see Library.d:666) Getting rid of global state (i.e global and static variables) to allow running concurrent compilation
author korDen
date Thu, 30 Sep 2010 10:04:32 +0400
parents 31c086f76669
children af724d3510d7
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1 module dmd.backend.glue;
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2
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3 import dmd.common;
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4 import dmd.Array;
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5 import dmd.Dsymbol;
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6 import dmd.File;
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7 import dmd.FileName;
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8 import dmd.Library;
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9 import dmd.OutBuffer;
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10 import dmd.Module;
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11 import dmd.Identifier;
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12 import dmd.AssertExp;
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13 import dmd.TOK;
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14 import dmd.Global;
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15 import dmd.Param;
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16 import dmd.backend.Config;
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17 import dmd.backend.Configv;
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18 import dmd.backend.StringTab;
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19
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20 import core.stdc.string;
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21
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22 __gshared Array obj_symbols_towrite;
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23 __gshared Outbuffer objbuf;
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24
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25 version (Windows)
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26 {
25
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27 extern (C++) extern
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28 {
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29 int go_flag(char* cp);
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30 void util_set64();
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31 void util_set386();
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32 }
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33 }
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34 else version (linux)
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35 {
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36 extern (C++)
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37 {
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38 int go_flag(char* cp);
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39 void util_set64();
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40 void util_set386();
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41 }
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42 }
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43 else
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44 {
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45 static assert(false, "fix this");
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46 }
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47
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48 import std.exception;
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49 import std.string;
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50
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51 string lastmname;
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52
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53 struct Outbuffer
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54 {
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55 ubyte* buf; // the buffer itself
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56 ubyte* pend; // pointer past the end of the buffer
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57 ubyte* p; // current position in buffer
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58 uint len; // size of buffer
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59 uint inc; // default increment size
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60
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61 this(uint inc)
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62 {
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63 assert(false);
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64 }
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65
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66 ~this()
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67 {
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68 assert(false);
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69 }
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70
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71 void reset()
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72 {
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73 assert(false);
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74 }
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75
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76 // Reserve nbytes in buffer
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77 void reserve(uint nbytes)
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78 {
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79 assert(false);
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80 }
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81
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82 // Write n zeros; return pointer to start of zeros
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83 void* writezeros(uint n)
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84 {
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85 assert(false);
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86 }
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87
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88 // Position buffer to accept the specified number of bytes at offset
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89 int position(uint offset, uint nbytes);
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90
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91 // Write an array to the buffer, no reserve check
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92 void writen(const(void)* b, int len)
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93 {
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94 memcpy(p,b,len);
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95 p += len;
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96 }
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97
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98 // Clear bytes, no reserve check
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99 void clearn(int len)
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100 {
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101 int i;
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102 for (i=0; i< len; i++)
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103 *p++ = 0;
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104 }
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105
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106 // Write an array to the buffer.
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107 void write(const void *b, int len)
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108 {
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109 assert(false);
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110 }
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111
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112 void write(Outbuffer* b)
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113 {
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114 write(b.buf, b.p - b.buf);
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115 }
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116
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117 /**
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118 * Flushes the stream. This will write any buffered
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119 * output bytes.
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120 */
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121 void flush() { }
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122
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123 /**
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124 * Writes an 8 bit byte, no reserve check.
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125 */
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126 void writeByten(char v)
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127 {
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128 *p++ = v;
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129 }
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130
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131 /**
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132 * Writes an 8 bit byte.
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133 */
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134 void writeByte(int v)
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135 {
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136 assert(false);
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137 }
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138
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139 /**
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140 * Writes a 16 bit little-end short, no reserve check.
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141 */
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142 void writeWordn(int v)
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143 {
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144 version (_WIN32) {
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145 *cast(ushort*)p = cast(short)v;
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146 } else {
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147 assert(0, "Check this");
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148 p[0] = cast(ubyte)v;
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149 p[1] = cast(ubyte)(v >> 8);
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150 }
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151 p += 2;
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152 }
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153
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154 /**
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155 * Writes a 16 bit little-end short.
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156 */
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157 void writeWord(int v)
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158 {
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159 reserve(2);
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160 writeWordn(v);
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161 }
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162
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163 /**
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164 * Writes a 16 bit big-end short.
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165 */
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166 void writeShort(int v)
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167 {
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168 if (pend - p < 2)
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169 reserve(2);
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170
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171 static if (false) {
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172 p[0] = (cast(ubyte*)&v)[1];
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173 p[1] = v;
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174 } else {
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175 ubyte* q = p;
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176 q[0] = cast(ubyte)(v >> 8);
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177 q[1] = cast(ubyte)v;
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178 }
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179 p += 2;
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180 }
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181
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182 /**
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183 * Writes a 16 bit char.
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184 */
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185 void writeChar(int v)
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186 {
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187 writeShort(v);
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188 }
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189
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190 /**
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191 * Writes a 32 bit int.
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192 */
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193 void write32(long v)
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194 {
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195 assert(false);
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196 }
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197
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198 /**
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199 * Writes a 64 bit long.
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200 */
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201 ///#if __INTSIZE == 4
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202 void write64(long v)
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203 {
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204 assert(false);
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205 }
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206 ///#endif
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207
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208 /**
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209 * Writes a 32 bit float.
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210 */
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211 void writeFloat(float v)
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212 {
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213 assert(false);
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214 }
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215
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216 /**
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217 * Writes a 64 bit double.
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218 */
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219 void writeDouble(double v)
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220 {
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221 assert(false);
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222 }
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223
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224 void write(const(char)* s)
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225 {
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226 assert(false);
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227 }
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228
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229 void write(const(ubyte)* s)
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230 {
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231 assert(false);
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232 }
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233
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234 void writeString(const(char)* s)
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235 {
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236 assert(false);
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237 }
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238
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239 void prependBytes(const(char)* s)
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240 {
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241 assert(false);
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242 }
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243
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244 void bracket(char c1, char c2)
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245 {
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246 assert(false);
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247 }
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248
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249 /**
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250 * Returns the number of bytes written.
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251 */
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252 int size()
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253 {
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254 return p - buf;
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255 }
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256
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257 char* toString()
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258 {
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259 assert(false);
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260 }
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261
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262 void setsize(uint size)
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263 {
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264 assert(false);
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265 }
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266
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267 void writesLEB128(long value)
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268 {
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269 assert(false);
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270 }
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271
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272 void writeuLEB128(uint value)
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273 {
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274 assert(false);
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275 }
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276 }
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277
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278 static this()
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279 {
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280 obj_symbols_towrite = new Array();
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281 }
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282
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283 /**************************************
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284 * Append s to list of object files to generate later.
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285 */
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286
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287 void obj_append(Dsymbol s)
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288 {
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289 obj_symbols_towrite.push(cast(void*)s);
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290 }
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291
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2cc604139636 Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
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292 version (Bug4059)
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293 {
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294 private extern (C) void _Z8obj_initP9OutbufferPKcS2_(Outbuffer* objbuf, const(char)* filename, const(char)* csegname);
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295 void obj_init(Outbuffer* objbuf, const(char)* filename, const(char)* csegname) { return _Z8obj_initP9OutbufferPKcS2_(objbuf, filename, csegname); }
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296 }
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297 else
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298 {
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299 extern (C++) {
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300 void obj_init(Outbuffer* objbuf, const(char)* filename, const(char)* csegname);
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301 }
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302 }
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303
0
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304 extern (C++) {
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305 void backend_init();
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306 void backend_term();
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307 void obj_term();
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308 void rtlsym_reset();
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309 void slist_reset();
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310 void el_reset();
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311 void cg87_reset();
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312 void out_reset();
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313 }
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314
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315 void clearStringTab()
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316 {
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317 //printf("clearStringTab()\n");
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318 memset(stringTab.ptr, 0, stringTab.sizeof);
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319 stidx = 0;
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320
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321 // assertexp_sfilename = null;
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322 // assertexp_name = null;
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323 // assertexp_mn = null;
0
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324 }
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325
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326 void obj_start(char *srcfile)
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327 {
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328 //printf("obj_start()\n");
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329
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330 out_config_init();
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331
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332 rtlsym_reset();
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333 slist_reset();
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334 clearStringTab();
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335
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336 obj_init(&objbuf, srcfile, null);
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337
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338 el_reset();
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339 cg87_reset();
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340 out_reset();
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341 }
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342
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343 void obj_end(Library library, File objfile)
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344 {
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345 obj_term();
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346
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347 if (library)
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348 {
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349 // Transfer image to library
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350 library.addObject(objfile.name.toChars(), objbuf.buf, objbuf.p - objbuf.buf);
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351 objbuf.buf = null;
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352 }
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353 else
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354 {
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355 // Transfer image to file
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356 objfile.setbuffer(objbuf.buf, objbuf.p - objbuf.buf);
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357 objbuf.buf = null;
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358
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359 string p = FileName.path(objfile.name.toChars());
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360 FileName.ensurePathExists(p);
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361 //mem.free(p);
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362
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363 //printf("write obj %s\n", objfile.name.toChars());
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364 objfile.writev();
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365 }
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366
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367 objbuf.pend = null;
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368 objbuf.p = null;
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369 objbuf.len = 0;
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370 objbuf.inc = 0;
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371 }
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372
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373 void obj_write_deferred(Library library)
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374 {
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375 for (int i = 0; i < obj_symbols_towrite.dim; i++)
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376 {
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377 Dsymbol s = cast(Dsymbol)obj_symbols_towrite.data[i];
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378 Module m = s.getModule();
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379
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380 string mname;
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381 if (m)
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382 {
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383 mname = m.srcfile.toChars();
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384 lastmname = mname;
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385 }
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386 else
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387 {
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388 //mname = s->ident->toChars();
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389 mname = lastmname;
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390 assert(mname.length != 0);
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391 }
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392
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393 obj_start(cast(char*)toStringz(mname));
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394
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395 static int count;
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396 count++; // sequence for generating names
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397
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398 /* Create a module that's a doppelganger of m, with just
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399 * enough to be able to create the moduleinfo.
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400 */
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7e0d548de9e6 Switch Arrays of Dsymbols to the new templated Vector type
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401 auto idbuf = new OutBuffer();
0
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402 idbuf.printf("%s.%d", m ? m.ident.toChars() : mname, count);
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403 string idstr = idbuf.extractString();
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404 idbuf.data = null;
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405 Identifier id = new Identifier(idstr, TOK.TOKidentifier);
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406
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407 auto md = new Module(mname, id, 0, 0);
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408 md.members = new Dsymbols();
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409 md.members.push(s); // its only 'member' is s
0
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410 if (m)
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411 {
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412 md.doppelganger = 1; // identify this module as doppelganger
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413 md.md = m.md;
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414 md.aimports.push(cast(void*)m); // it only 'imports' m
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415 md.massert = m.massert;
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416 md.marray = m.marray;
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417 }
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418
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419 md.genobjfile(0);
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420
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421 /* Set object file name to be source name with sequence number,
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422 * as mangled symbol names get way too long.
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423 */
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424 string fname = FileName.removeExt(mname);
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425
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426 OutBuffer namebuf = new OutBuffer();
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427 uint hash = 0;
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428 foreach (char c; s.toChars())
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429 hash += c;
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430
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431 namebuf.printf("%s_%x_%x.%s", fname, count, hash, global.obj_ext);
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432 fname = namebuf.extractString();
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433
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434 //printf("writing '%s'\n", fname);
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435 File objfile = new File(fname);
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436 obj_end(library, objfile);
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437 }
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438
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439 obj_symbols_towrite.dim = 0;
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440 }
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441
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442 /**************************************
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443 * Initialize config variables.
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444 */
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445
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446 void out_config_init()
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447 {
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448 Param* params = &global.params;
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449
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450 if (!config.target_cpu)
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parents:
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451 {
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452 config.target_cpu = TARGET_PentiumPro;
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diff changeset
453 config.target_scheduler = config.target_cpu;
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parents:
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454 }
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455 config.fulltypes = CVNONE;
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parents:
diff changeset
456 config.inline8087 = 1;
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parents:
diff changeset
457 config.memmodel = 0;
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parents:
diff changeset
458 config.flags |= CFGuchar; // make sure TYchar is unsigned
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parents:
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459 version (TARGET_WINDOS) {
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parents:
diff changeset
460 if (params.isX86_64)
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parents:
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461 config.exe = EX_WIN64;
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462 else
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463 config.exe = EX_NT;
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464
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465 // Win32 eh
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466 config.flags2 |= CFG2seh;
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467
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parents:
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468 if (params.run)
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469 config.wflags |= WFexe; // EXE file only optimizations
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parents:
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470 else if (params.link && !global.params.deffile)
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471 config.wflags |= WFexe; // EXE file only optimizations
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472 else if (params.exefile) // if writing out EXE file
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473 {
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474 size_t len = params.exefile.length;
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475 if (len >= 4 && icmp(params.exefile[len-3..len], "exe") == 0)
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476 config.wflags |= WFexe;
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parents:
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477 }
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parents:
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478 config.flags4 |= CFG4underscore;
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parents:
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479 }
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parents:
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480 version (TARGET_LINUX) {
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parents:
diff changeset
481 if (params.isX86_64)
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parents:
diff changeset
482 config.exe = EX_LINUX64;
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parents:
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483 else
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parents:
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484 config.exe = EX_LINUX;
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parents:
diff changeset
485 config.flags |= CFGnoebp;
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parents:
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486 config.flags |= CFGalwaysframe;
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parents:
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487 if (params.pic)
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parents:
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488 config.flags3 |= CFG3pic;
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parents:
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489 }
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parents:
diff changeset
490 version (TARGET_OSX) {
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parents:
diff changeset
491 if (params.isX86_64)
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parents:
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492 config.exe = EX_OSX64;
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parents:
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493 else
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parents:
diff changeset
494 config.exe = EX_OSX;
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parents:
diff changeset
495 config.flags |= CFGnoebp;
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parents:
diff changeset
496 config.flags |= CFGalwaysframe;
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parents:
diff changeset
497 if (params.pic)
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parents:
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498 config.flags3 |= CFG3pic;
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parents:
diff changeset
499 }
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parents:
diff changeset
500 version (TARGET_FREEBSD) {
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korDen
parents:
diff changeset
501 if (params.isX86_64)
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korDen
parents:
diff changeset
502 config.exe = EX_FREEBSD64;
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parents:
diff changeset
503 else
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parents:
diff changeset
504 config.exe = EX_FREEBSD;
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parents:
diff changeset
505 config.flags |= CFGnoebp;
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parents:
diff changeset
506 config.flags |= CFGalwaysframe;
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parents:
diff changeset
507 if (params.pic)
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parents:
diff changeset
508 config.flags3 |= CFG3pic;
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korDen
parents:
diff changeset
509 }
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korDen
parents:
diff changeset
510 version (TARGET_SOLARIS) {
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parents:
diff changeset
511 if (params.isX86_64)
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korDen
parents:
diff changeset
512 config.exe = EX_SOLARIS64;
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parents:
diff changeset
513 else
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korDen
parents:
diff changeset
514 config.exe = EX_SOLARIS;
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parents:
diff changeset
515 config.flags |= CFGnoebp;
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parents:
diff changeset
516 config.flags |= CFGalwaysframe;
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korDen
parents:
diff changeset
517 if (params.pic)
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parents:
diff changeset
518 config.flags3 |= CFG3pic;
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parents:
diff changeset
519 }
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parents:
diff changeset
520 config.flags2 |= CFG2nodeflib; // no default library
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korDen
parents:
diff changeset
521 config.flags3 |= CFG3eseqds;
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korDen
parents:
diff changeset
522 static if (false) {
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parents:
diff changeset
523 if (env.getEEcontext().EEcompile != 2)
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korDen
parents:
diff changeset
524 config.flags4 |= CFG4allcomdat;
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korDen
parents:
diff changeset
525 if (env.nochecks())
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korDen
parents:
diff changeset
526 config.flags4 |= CFG4nochecks; // no runtime checking
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parents:
diff changeset
527 } else version (TARGET_OSX) {
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korDen
parents:
diff changeset
528 } else {
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parents:
diff changeset
529 config.flags4 |= CFG4allcomdat;
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korDen
parents:
diff changeset
530 }
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korDen
parents:
diff changeset
531 if (params.trace)
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korDen
parents:
diff changeset
532 config.flags |= CFGtrace; // turn on profiler
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korDen
parents:
diff changeset
533 if (params.nofloat)
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korDen
parents:
diff changeset
534 config.flags3 |= CFG3wkfloat;
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korDen
parents:
diff changeset
535
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korDen
parents:
diff changeset
536 configv.verbose = params.verbose;
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korDen
parents:
diff changeset
537
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korDen
parents:
diff changeset
538 if (params.optimize)
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korDen
parents:
diff changeset
539 go_flag(cast(char*)"-o".ptr);
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korDen
parents:
diff changeset
540
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korDen
parents:
diff changeset
541 if (params.symdebug)
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korDen
parents:
diff changeset
542 {
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korDen
parents:
diff changeset
543 version (ELFOBJ_OR_MACHOBJ) {
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korDen
parents:
diff changeset
544 configv.addlinenumbers = 1;
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korDen
parents:
diff changeset
545 config.fulltypes = (params.symdebug == 1) ? CVDWARF_D : CVDWARF_C;
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korDen
parents:
diff changeset
546 }
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korDen
parents:
diff changeset
547 version (OMFOBJ) {
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korDen
parents:
diff changeset
548 configv.addlinenumbers = 1;
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korDen
parents:
diff changeset
549 config.fulltypes = CV4;
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korDen
parents:
diff changeset
550 }
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korDen
parents:
diff changeset
551 if (!params.optimize)
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korDen
parents:
diff changeset
552 config.flags |= CFGalwaysframe;
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korDen
parents:
diff changeset
553 }
10317f0c89a5 Initial commit
korDen
parents:
diff changeset
554 else
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korDen
parents:
diff changeset
555 {
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parents:
diff changeset
556 configv.addlinenumbers = 0;
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parents:
diff changeset
557 config.fulltypes = CVNONE;
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korDen
parents:
diff changeset
558 //config.flags &= ~CFGalwaysframe;
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parents:
diff changeset
559 }
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korDen
parents:
diff changeset
560
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korDen
parents:
diff changeset
561 if (params.isX86_64)
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korDen
parents:
diff changeset
562 {
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korDen
parents:
diff changeset
563 util_set64();
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korDen
parents:
diff changeset
564 cod3_set64();
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korDen
parents:
diff changeset
565 }
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korDen
parents:
diff changeset
566 else
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korDen
parents:
diff changeset
567 {
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korDen
parents:
diff changeset
568 util_set386();
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korDen
parents:
diff changeset
569 cod3_set386();
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parents:
diff changeset
570 }
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parents:
diff changeset
571
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korDen
parents:
diff changeset
572 debug {
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korDen
parents:
diff changeset
573 debugb = params.debugb;
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parents:
diff changeset
574 debugc = params.debugc;
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korDen
parents:
diff changeset
575 debugf = params.debugf;
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korDen
parents:
diff changeset
576 debugr = params.debugr;
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korDen
parents:
diff changeset
577 debugw = params.debugw;
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korDen
parents:
diff changeset
578 debugx = params.debugx;
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korDen
parents:
diff changeset
579 debugy = params.debugy;
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korDen
parents:
diff changeset
580 }
14
2cc604139636 Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents: 0
diff changeset
581 }