annotate dmd/backend/glue.d @ 179:cd48cb899aee

Updated to dmd2.040
author korDen
date Sun, 17 Oct 2010 20:56:07 +0400
parents e3afd1303184
children 190ba98276b3
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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.elem;
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18 import dmd.backend.Configv;
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19 import dmd.backend.StringTab;
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20
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21 import core.stdc.string;
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22
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23 version (Windows)
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24 {
25
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25 extern (C++) extern
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26 {
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27 int go_flag(char* cp);
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28 void util_set64();
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29 void util_set386();
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30 }
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31 }
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32 else version (linux)
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33 {
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34 extern (C++)
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35 {
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36 int go_flag(char* cp);
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37 void util_set64();
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38 void util_set386();
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39 }
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40 }
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41 else
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42 {
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43 static assert(false, "fix this");
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44 }
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45
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46 import std.exception;
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47 import std.string;
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48
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49 struct Outbuffer
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50 {
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51 ubyte* buf; // the buffer itself
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52 ubyte* pend; // pointer past the end of the buffer
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53 ubyte* p; // current position in buffer
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54 uint len; // size of buffer
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55 uint inc; // default increment size
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56
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57 this(uint inc)
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58 {
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59 assert(false);
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60 }
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61
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62 ~this()
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63 {
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64 }
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65
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66 void reset()
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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 // Reserve nbytes in buffer
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72 void reserve(uint nbytes)
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73 {
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74 assert(false);
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75 }
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76
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77 // Write n zeros; return pointer to start of zeros
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78 void* writezeros(uint n)
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79 {
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80 assert(false);
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81 }
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82
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83 // Position buffer to accept the specified number of bytes at offset
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84 int position(uint offset, uint nbytes);
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85
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86 // Write an array to the buffer, no reserve check
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87 void writen(const(void)* b, int len)
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88 {
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89 memcpy(p,b,len);
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90 p += len;
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91 }
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92
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93 // Clear bytes, no reserve check
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94 void clearn(int len)
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95 {
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96 int i;
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97 for (i=0; i< len; i++)
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98 *p++ = 0;
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99 }
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100
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101 // Write an array to the buffer.
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102 void write(const void *b, int len)
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103 {
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104 assert(false);
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105 }
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106
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107 void write(Outbuffer* b)
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108 {
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109 write(b.buf, b.p - b.buf);
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110 }
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111
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112 /**
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113 * Flushes the stream. This will write any buffered
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114 * output bytes.
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115 */
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116 void flush() { }
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117
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118 /**
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119 * Writes an 8 bit byte, no reserve check.
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120 */
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121 void writeByten(char v)
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122 {
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123 *p++ = v;
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124 }
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125
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126 /**
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127 * Writes an 8 bit byte.
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128 */
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129 void writeByte(int v)
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130 {
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131 assert(false);
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132 }
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133
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134 /**
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135 * Writes a 16 bit little-end short, no reserve check.
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136 */
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137 void writeWordn(int v)
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138 {
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139 version (_WIN32) {
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140 *cast(ushort*)p = cast(short)v;
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141 } else {
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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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142 assert(0, "Check this");
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143 p[0] = cast(ubyte)v;
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144 p[1] = cast(ubyte)(v >> 8);
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145 }
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146 p += 2;
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147 }
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148
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149 /**
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150 * Writes a 16 bit little-end short.
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151 */
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152 void writeWord(int v)
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153 {
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154 reserve(2);
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155 writeWordn(v);
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156 }
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157
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158 /**
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159 * Writes a 16 bit big-end short.
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160 */
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161 void writeShort(int v)
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162 {
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163 if (pend - p < 2)
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164 reserve(2);
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165
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166 static if (false) {
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167 p[0] = (cast(ubyte*)&v)[1];
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168 p[1] = v;
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169 } else {
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170 ubyte* q = p;
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171 q[0] = cast(ubyte)(v >> 8);
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172 q[1] = cast(ubyte)v;
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173 }
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174 p += 2;
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175 }
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176
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177 /**
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178 * Writes a 16 bit char.
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179 */
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180 void writeChar(int v)
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181 {
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182 writeShort(v);
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183 }
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184
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185 /**
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186 * Writes a 32 bit int.
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187 */
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188 void write32(long v)
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189 {
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190 assert(false);
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191 }
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192
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193 /**
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194 * Writes a 64 bit long.
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195 */
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196 ///#if __INTSIZE == 4
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197 void write64(long v)
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198 {
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199 assert(false);
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200 }
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201 ///#endif
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202
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203 /**
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204 * Writes a 32 bit float.
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205 */
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206 void writeFloat(float v)
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207 {
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208 assert(false);
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209 }
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210
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211 /**
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212 * Writes a 64 bit double.
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213 */
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214 void writeDouble(double v)
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215 {
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216 assert(false);
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217 }
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218
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219 void write(const(char)* s)
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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(ubyte)* 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 writeString(const(char)* 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 prependBytes(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 bracket(char c1, char c2)
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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 /**
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245 * Returns the number of bytes written.
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246 */
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247 int size()
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248 {
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249 return p - buf;
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250 }
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251
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252 char* toString()
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253 {
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254 assert(false);
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255 }
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256
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257 void setsize(uint size)
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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 writesLEB128(long value)
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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 writeuLEB128(uint 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
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273 /**************************************
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274 * Append s to list of object files to generate later.
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275 */
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276
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277 void obj_append(Dsymbol s)
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278 {
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279 global.obj_symbols_towrite.push(cast(void*)s);
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280 }
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281
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282 version (Bug4059)
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283 {
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284 private extern (C) void _Z8obj_initP9OutbufferPKcS2_(Outbuffer* objbuf, const(char)* filename, const(char)* csegname);
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285 void obj_init(Outbuffer* objbuf, const(char)* filename, const(char)* csegname) { return _Z8obj_initP9OutbufferPKcS2_(objbuf, filename, csegname); }
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286 }
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287 else
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288 {
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289 extern (C++) {
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290 void obj_init(Outbuffer* objbuf, const(char)* filename, const(char)* csegname);
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291 }
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292 }
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293
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294 extern (C++) {
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295 void backend_init();
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296 void backend_term();
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297 void obj_term();
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298 void rtlsym_reset();
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299 void slist_reset();
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300 void el_reset();
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301 void cg87_reset();
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302 void out_reset();
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303 }
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304
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305 void clearStringTab()
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306 {
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307 //printf("clearStringTab()\n");
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308 memset(global.stringTab.ptr, 0, global.stringTab.sizeof);
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309 global.stidx = 0;
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310
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311 // assertexp_sfilename = null;
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312 // assertexp_name = null;
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313 // assertexp_mn = null;
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314 }
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315
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316 void obj_start(char *srcfile)
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317 {
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318 //printf("obj_start()\n");
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319
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320 out_config_init();
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321
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322 rtlsym_reset();
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323 slist_reset();
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324 clearStringTab();
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325
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326 obj_init(&global.objbuf, srcfile, null);
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327
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328 el_reset();
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329 cg87_reset();
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330 out_reset();
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331 }
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332
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333 void obj_end(Library library, File objfile)
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334 {
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335 obj_term();
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336
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337 auto objbuf = &global.objbuf;
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338
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339 if (library)
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340 {
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341 // Transfer image to library
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342 library.addObject(objfile.name.toChars(), objbuf.buf, objbuf.p - objbuf.buf);
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343 objbuf.buf = null;
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344 }
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345 else
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346 {
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347 // Transfer image to file
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348 objfile.setbuffer(objbuf.buf, objbuf.p - objbuf.buf);
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349 objbuf.buf = null;
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350
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351 string p = FileName.path(objfile.name.toChars());
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352 FileName.ensurePathExists(p);
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353 //mem.free(p);
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354
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355 //printf("write obj %s\n", objfile.name.toChars());
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356 objfile.writev();
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357 }
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358
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359 objbuf.pend = null;
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360 objbuf.p = null;
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361 objbuf.len = 0;
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362 objbuf.inc = 0;
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363 }
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364
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365 void obj_write_deferred(Library library)
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366 {
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367 auto obj_symbols_towrite = global.obj_symbols_towrite;
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368 for (int i = 0; i < obj_symbols_towrite.dim; i++)
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369 {
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370 Dsymbol s = cast(Dsymbol)obj_symbols_towrite.data[i];
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371 Module m = s.getModule();
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372
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373 string mname;
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374 if (m)
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375 {
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376 mname = m.srcfile.toChars();
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377 global.lastmname = mname;
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378 }
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379 else
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380 {
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381 //mname = s->ident->toChars();
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382 mname = global.lastmname;
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383 assert(mname.length != 0);
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384 }
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385
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386 obj_start(cast(char*)toStringz(mname));
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387
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388 int count = ++global.count; // sequence for generating names
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389
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390 /* Create a module that's a doppelganger of m, with just
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391 * enough to be able to create the moduleinfo.
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392 */
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393 auto idbuf = new OutBuffer();
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394 idbuf.printf("%s.%d", m ? m.ident.toChars() : mname, count);
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395 string idstr = idbuf.extractString();
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396 idbuf.data = null;
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397 Identifier id = new Identifier(idstr, TOK.TOKidentifier);
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398
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399 auto md = new Module(mname, id, 0, 0);
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400 md.members = new Dsymbols();
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401 md.members.push(s); // its only 'member' is s
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402 if (m)
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403 {
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404 md.doppelganger = 1; // identify this module as doppelganger
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405 md.md = m.md;
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406 md.aimports.push(cast(void*)m); // it only 'imports' m
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407 md.massert = m.massert;
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408 md.marray = m.marray;
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409 }
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410
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411 md.genobjfile(0);
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412
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413 /* Set object file name to be source name with sequence number,
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414 * as mangled symbol names get way too long.
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415 */
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416 string fname = FileName.removeExt(mname);
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417
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418 OutBuffer namebuf = new OutBuffer();
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419 uint hash = 0;
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420 foreach (char c; s.toChars())
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421 hash += c;
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422
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423 namebuf.printf("%s_%x_%x.%s", fname, count, hash, global.obj_ext);
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424 fname = namebuf.extractString();
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425
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426 //printf("writing '%s'\n", fname);
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427 File objfile = new File(fname);
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428 obj_end(library, objfile);
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429 }
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430
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431 obj_symbols_towrite.dim = 0;
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432 }
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433
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434 /**************************************
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435 * Initialize config variables.
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436 */
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437
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438 void out_config_init()
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439 {
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440 Param* params = &global.params;
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441
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442 if (!config.target_cpu)
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443 {
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444 config.target_cpu = TARGET_PentiumPro;
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445 config.target_scheduler = config.target_cpu;
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446 }
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447 config.fulltypes = CVNONE;
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448 config.inline8087 = 1;
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449 config.memmodel = 0;
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450 config.flags |= CFGuchar; // make sure TYchar is unsigned
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451 version (TARGET_WINDOS) {
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452 if (params.isX86_64)
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453 config.exe = EX_WIN64;
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454 else
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455 config.exe = EX_NT;
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456
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457 // Win32 eh
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458 config.flags2 |= CFG2seh;
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459
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460 if (params.run)
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461 config.wflags |= WFexe; // EXE file only optimizations
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462 else if (params.link && !global.params.deffile)
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463 config.wflags |= WFexe; // EXE file only optimizations
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464 else if (params.exefile) // if writing out EXE file
178
e3afd1303184 Many small bugs fixed
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465 {
0
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466 size_t len = params.exefile.length;
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467 if (len >= 4 && icmp(params.exefile[len-3..len], "exe") == 0)
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468 config.wflags |= WFexe;
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469 }
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470 config.flags4 |= CFG4underscore;
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471 }
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472 version (TARGET_LINUX) {
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473 if (params.isX86_64)
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474 config.exe = EX_LINUX64;
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475 else
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476 config.exe = EX_LINUX;
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477 config.flags |= CFGnoebp;
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478 config.flags |= CFGalwaysframe;
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479 if (params.pic)
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480 config.flags3 |= CFG3pic;
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481 }
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482 version (TARGET_OSX) {
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483 if (params.isX86_64)
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484 config.exe = EX_OSX64;
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485 else
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486 config.exe = EX_OSX;
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487 config.flags |= CFGnoebp;
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488 config.flags |= CFGalwaysframe;
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489 if (params.pic)
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490 config.flags3 |= CFG3pic;
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491 }
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parents:
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492 version (TARGET_FREEBSD) {
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parents:
diff changeset
493 if (params.isX86_64)
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diff changeset
494 config.exe = EX_FREEBSD64;
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495 else
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496 config.exe = EX_FREEBSD;
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497 config.flags |= CFGnoebp;
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498 config.flags |= CFGalwaysframe;
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499 if (params.pic)
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500 config.flags3 |= CFG3pic;
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501 }
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parents:
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502 version (TARGET_SOLARIS) {
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parents:
diff changeset
503 if (params.isX86_64)
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504 config.exe = EX_SOLARIS64;
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505 else
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diff changeset
506 config.exe = EX_SOLARIS;
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diff changeset
507 config.flags |= CFGnoebp;
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508 config.flags |= CFGalwaysframe;
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parents:
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509 if (params.pic)
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510 config.flags3 |= CFG3pic;
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511 }
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512 config.flags2 |= CFG2nodeflib; // no default library
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513 config.flags3 |= CFG3eseqds;
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parents:
diff changeset
514 static if (false) {
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diff changeset
515 if (env.getEEcontext().EEcompile != 2)
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516 config.flags4 |= CFG4allcomdat;
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parents:
diff changeset
517 if (env.nochecks())
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518 config.flags4 |= CFG4nochecks; // no runtime checking
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519 } else version (TARGET_OSX) {
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parents:
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520 } else {
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521 config.flags4 |= CFG4allcomdat;
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522 }
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parents:
diff changeset
523 if (params.trace)
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524 config.flags |= CFGtrace; // turn on profiler
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parents:
diff changeset
525 if (params.nofloat)
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526 config.flags3 |= CFG3wkfloat;
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527
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parents:
diff changeset
528 configv.verbose = params.verbose;
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529
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parents:
diff changeset
530 if (params.optimize)
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531 go_flag(cast(char*)"-o".ptr);
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532
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parents:
diff changeset
533 if (params.symdebug)
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parents:
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534 {
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parents:
diff changeset
535 version (ELFOBJ_OR_MACHOBJ) {
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parents:
diff changeset
536 configv.addlinenumbers = 1;
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parents:
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537 config.fulltypes = (params.symdebug == 1) ? CVDWARF_D : CVDWARF_C;
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parents:
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538 }
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parents:
diff changeset
539 version (OMFOBJ) {
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parents:
diff changeset
540 configv.addlinenumbers = 1;
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parents:
diff changeset
541 config.fulltypes = CV4;
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parents:
diff changeset
542 }
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parents:
diff changeset
543 if (!params.optimize)
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parents:
diff changeset
544 config.flags |= CFGalwaysframe;
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545 }
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parents:
diff changeset
546 else
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parents:
diff changeset
547 {
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parents:
diff changeset
548 configv.addlinenumbers = 0;
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parents:
diff changeset
549 config.fulltypes = CVNONE;
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parents:
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550 //config.flags &= ~CFGalwaysframe;
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parents:
diff changeset
551 }
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552
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korDen
parents:
diff changeset
553 if (params.isX86_64)
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parents:
diff changeset
554 {
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parents:
diff changeset
555 util_set64();
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parents:
diff changeset
556 cod3_set64();
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557 }
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parents:
diff changeset
558 else
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parents:
diff changeset
559 {
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parents:
diff changeset
560 util_set386();
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diff changeset
561 cod3_set386();
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parents:
diff changeset
562 }
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563
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parents:
diff changeset
564 debug {
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diff changeset
565 debugb = params.debugb;
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566 debugc = params.debugc;
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parents:
diff changeset
567 debugf = params.debugf;
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diff changeset
568 debugr = params.debugr;
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parents:
diff changeset
569 debugw = params.debugw;
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diff changeset
570 debugx = params.debugx;
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diff changeset
571 debugy = params.debugy;
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parents:
diff changeset
572 }
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
573 }