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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT COMPILER COMPONENTS --
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4 -- --
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5 -- G N A T D L L --
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6 -- --
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7 -- B o d y --
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8 -- --
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131
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9 -- Copyright (C) 1997-2018, Free Software Foundation, Inc. --
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111
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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17 -- for more details. You should have received a copy of the GNU General --
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18 -- Public License distributed with GNAT; see file COPYING3. If not, go to --
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19 -- http://www.gnu.org/licenses for a complete copy of the license. --
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20 -- --
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21 -- GNAT was originally developed by the GNAT team at New York University. --
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22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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23 -- --
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24 ------------------------------------------------------------------------------
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25
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26 -- GNATDLL is a Windows specific tool for building a DLL.
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27 -- Both relocatable and non-relocatable DLL's are supported
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28
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29 with Gnatvsn;
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30 with MDLL.Fil; use MDLL.Fil;
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31 with MDLL.Utl;
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32 with Switch; use Switch;
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33
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34 with Ada.Text_IO; use Ada.Text_IO;
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35 with Ada.Strings.Unbounded; use Ada.Strings.Unbounded;
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36 with Ada.Exceptions; use Ada.Exceptions;
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37 with Ada.Command_Line; use Ada.Command_Line;
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38
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39 with GNAT.OS_Lib; use GNAT.OS_Lib;
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40 with GNAT.Command_Line; use GNAT.Command_Line;
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41
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42 procedure Gnatdll is
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43
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44 procedure Syntax;
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45 -- Print out usage
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46
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47 procedure Check (Filename : String);
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48 -- Check that the file whose name is Filename exists
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49
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50 procedure Parse_Command_Line;
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51 -- Parse the command line arguments passed to gnatdll
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52
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53 procedure Check_Context;
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54 -- Check the context before running any commands to build the library
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55
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56 Syntax_Error : exception;
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57 -- Raised when a syntax error is detected, in this case a usage info will
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58 -- be displayed.
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59
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60 Context_Error : exception;
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61 -- Raised when some files (specified on the command line) are missing to
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62 -- build the DLL.
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63
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64 Help : Boolean := False;
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65 -- Help will be set to True the usage information is to be displayed
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66
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67 Version : constant String := Gnatvsn.Gnat_Version_String;
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68 -- Why should it be necessary to make a copy of this
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69
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70 Default_DLL_Address : constant String := "0x11000000";
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71 -- Default address for non relocatable DLL (Win32)
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72
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73 Lib_Filename : Unbounded_String := Null_Unbounded_String;
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74 -- The DLL filename that will be created (.dll)
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75
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76 Def_Filename : Unbounded_String := Null_Unbounded_String;
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77 -- The definition filename (.def)
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78
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79 List_Filename : Unbounded_String := Null_Unbounded_String;
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80 -- The name of the file containing the objects file to put into the DLL
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81
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82 DLL_Address : Unbounded_String := To_Unbounded_String (Default_DLL_Address);
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83 -- The DLL's base address
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84
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85 Gen_Map_File : Boolean := False;
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86 -- Set to True if a map file is to be generated
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87
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88 Objects_Files : Argument_List_Access := MDLL.Null_Argument_List_Access;
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89 -- List of objects to put inside the library
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90
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91 Ali_Files : Argument_List_Access := MDLL.Null_Argument_List_Access;
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92 -- For each Ada file specified, we keep a record of the corresponding
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93 -- ALI file. This list of SLI files is used to build the binder program.
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94
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95 Options : Argument_List_Access := MDLL.Null_Argument_List_Access;
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96 -- A list of options set in the command line
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97
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98 Largs_Options : Argument_List_Access := MDLL.Null_Argument_List_Access;
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99 Bargs_Options : Argument_List_Access := MDLL.Null_Argument_List_Access;
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100 -- GNAT linker and binder args options
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101
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102 type Build_Mode_State is (Import_Lib, Dynamic_Lib, Dynamic_Lib_Only, Nil);
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103 -- Import_Lib means only the .a file will be created, Dynamic_Lib means
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104 -- that both the DLL and the import library will be created.
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105 -- Dynamic_Lib_Only means that only the DLL will be created (no import
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106 -- library).
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107
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108 Build_Mode : Build_Mode_State := Nil;
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109 -- Will be set when parsing the command line
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110
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111 Must_Build_Relocatable : Boolean := True;
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112 -- True means build a relocatable DLL, will be set to False if a
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113 -- non-relocatable DLL must be built.
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114
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115 ------------
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116 -- Syntax --
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117 ------------
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118
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119 procedure Syntax is
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120 procedure P (Str : String) renames Put_Line;
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121 begin
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122 P ("Usage : gnatdll [options] [list-of-files]");
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123 New_Line;
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124 P ("[list-of-files] a list of Ada libraries (.ali) and/or " &
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125 "foreign object files");
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126 New_Line;
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127 P ("[options] can be");
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128 P (" -h Help - display this message");
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129 P (" -v Verbose");
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130 P (" -q Quiet");
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131 P (" -k Remove @nn suffix from exported names");
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132 P (" -g Generate debugging information");
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133 P (" -Idir Specify source and object files search path");
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134 P (" -l file File contains a list-of-files to be added to "
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135 & "the library");
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136 P (" -e file Definition file containing exports");
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137 P (" -d file Put objects in the relocatable dynamic "
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138 & "library <file>");
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139 P (" -b addr Set base address for the relocatable DLL");
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140 P (" default address is " & Default_DLL_Address);
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141 P (" -a[addr] Build non-relocatable DLL at address <addr>");
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142 P (" if <addr> is not specified use "
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143 & Default_DLL_Address);
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144 P (" -m Generate map file");
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145 P (" -n No-import - do not create the import library");
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146 P (" -bargs opts opts are passed to the binder");
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147 P (" -largs opts opts are passed to the linker");
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148 end Syntax;
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149
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150 -----------
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151 -- Check --
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152 -----------
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153
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154 procedure Check (Filename : String) is
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155 begin
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156 if not Is_Regular_File (Filename) then
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157 Raise_Exception
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158 (Context_Error'Identity, "Error: " & Filename & " not found.");
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159 end if;
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160 end Check;
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161
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162 ------------------------
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163 -- Parse_Command_Line --
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164 ------------------------
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165
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166 procedure Parse_Command_Line is
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167
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168 procedure Add_File (Filename : String);
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169 -- Add one file to the list of file to handle
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170
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171 procedure Add_Files_From_List (List_Filename : String);
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172 -- Add the files listed in List_Filename (one by line) to the list
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173 -- of file to handle
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174
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175 Max_Files : constant := 5_000;
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176 Max_Options : constant := 100;
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177 -- These are arbitrary limits, a better way will be to use linked list.
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178 -- No, a better choice would be to use tables ???
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179 -- Limits on what???
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180
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181 Ofiles : Argument_List (1 .. Max_Files);
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182 O : Positive := Ofiles'First;
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183 -- List of object files to put in the library. O is the next entry
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184 -- to be used.
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185
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186 Afiles : Argument_List (1 .. Max_Files);
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187 A : Positive := Afiles'First;
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188 -- List of ALI files. A is the next entry to be used
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189
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190 Gopts : Argument_List (1 .. Max_Options);
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191 G : Positive := Gopts'First;
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192 -- List of gcc options. G is the next entry to be used
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193
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194 Lopts : Argument_List (1 .. Max_Options);
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195 L : Positive := Lopts'First;
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196 -- A list of -largs options (L is next entry to be used)
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197
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198 Bopts : Argument_List (1 .. Max_Options);
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199 B : Positive := Bopts'First;
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200 -- A list of -bargs options (B is next entry to be used)
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201
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202 Build_Import : Boolean := True;
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203 -- Set to False if option -n if specified (no-import)
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204
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205 --------------
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206 -- Add_File --
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207 --------------
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208
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209 procedure Add_File (Filename : String) is
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210 begin
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211 if Is_Ali (Filename) then
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212 Check (Filename);
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213
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214 -- Record it to generate the binder program when
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215 -- building dynamic library
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216
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217 Afiles (A) := new String'(Filename);
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218 A := A + 1;
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219
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220 elsif Is_Obj (Filename) then
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221 Check (Filename);
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222
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223 -- Just record this object file
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224
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225 Ofiles (O) := new String'(Filename);
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226 O := O + 1;
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227
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228 else
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229 -- Unknown file type
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230
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231 Raise_Exception
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232 (Syntax_Error'Identity,
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233 "don't know what to do with " & Filename & " !");
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234 end if;
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235 end Add_File;
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236
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237 -------------------------
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238 -- Add_Files_From_List --
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239 -------------------------
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240
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241 procedure Add_Files_From_List (List_Filename : String) is
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242 File : File_Type;
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243 Buffer : String (1 .. 500);
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244 Last : Natural;
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245
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246 begin
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247 Open (File, In_File, List_Filename);
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248
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249 while not End_Of_File (File) loop
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250 Get_Line (File, Buffer, Last);
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251 Add_File (Buffer (1 .. Last));
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252 end loop;
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253
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254 Close (File);
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255
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256 exception
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257 when Name_Error =>
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258 Raise_Exception
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259 (Syntax_Error'Identity,
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260 "list-of-files file " & List_Filename & " not found.");
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261 end Add_Files_From_List;
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262
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263 -- Start of processing for Parse_Command_Line
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264
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265 begin
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266 Initialize_Option_Scan ('-', False, "bargs largs");
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267
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268 -- scan gnatdll switches
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269
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270 loop
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271 case Getopt ("g h v q k a? b: d: e: l: n m I:") is
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272 when ASCII.NUL =>
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273 exit;
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274
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275 when 'h' =>
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276 Help := True;
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277
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278 when 'g' =>
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279 Gopts (G) := new String'("-g");
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280 G := G + 1;
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281
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282 when 'v' =>
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283
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284 -- Turn verbose mode on
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285
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286 MDLL.Verbose := True;
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287 if MDLL.Quiet then
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288 Raise_Exception
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289 (Syntax_Error'Identity,
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290 "impossible to use -q and -v together.");
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291 end if;
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292
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293 when 'q' =>
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294
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295 -- Turn quiet mode on
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296
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297 MDLL.Quiet := True;
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298 if MDLL.Verbose then
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299 Raise_Exception
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300 (Syntax_Error'Identity,
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301 "impossible to use -v and -q together.");
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302 end if;
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303
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304 when 'k' =>
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305 MDLL.Kill_Suffix := True;
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306
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307 when 'a' =>
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308 if Parameter = "" then
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309
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310 -- Default address for a relocatable dynamic library.
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311 -- address for a non relocatable dynamic library.
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312
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313 DLL_Address := To_Unbounded_String (Default_DLL_Address);
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314
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315 else
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316 DLL_Address := To_Unbounded_String (Parameter);
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317 end if;
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318
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319 Must_Build_Relocatable := False;
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320
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321 when 'b' =>
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322 DLL_Address := To_Unbounded_String (Parameter);
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323 Must_Build_Relocatable := True;
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324
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325 when 'e' =>
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326 Def_Filename := To_Unbounded_String (Parameter);
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327
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328 when 'd' =>
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329
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330 -- Build a non relocatable DLL
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331
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332 Lib_Filename := To_Unbounded_String (Parameter);
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333
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334 if Def_Filename = Null_Unbounded_String then
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335 Def_Filename := To_Unbounded_String
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336 (Ext_To (Parameter, "def"));
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337 end if;
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338
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339 Build_Mode := Dynamic_Lib;
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340
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341 when 'm' =>
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342 Gen_Map_File := True;
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343
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344 when 'n' =>
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345 Build_Import := False;
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346
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347 when 'l' =>
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348 List_Filename := To_Unbounded_String (Parameter);
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349
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350 when 'I' =>
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351 Gopts (G) := new String'("-I" & Parameter);
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352 G := G + 1;
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353
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354 when others =>
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355 raise Invalid_Switch;
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356 end case;
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357 end loop;
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358
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359 -- Get parameters
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360
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361 loop
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362 declare
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363 File : constant String := Get_Argument (Do_Expansion => True);
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364 begin
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365 exit when File'Length = 0;
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366 Add_File (File);
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367 end;
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368 end loop;
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369
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370 -- Get largs parameters
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371
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372 Goto_Section ("largs");
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373
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374 loop
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375 case Getopt ("*") is
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376 when ASCII.NUL =>
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377 exit;
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378
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379 when others =>
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380 Lopts (L) := new String'(Full_Switch);
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381 L := L + 1;
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382 end case;
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383 end loop;
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384
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385 -- Get bargs parameters
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386
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387 Goto_Section ("bargs");
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388
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389 loop
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390 case Getopt ("*") is
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391 when ASCII.NUL =>
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392 exit;
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393
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394 when others =>
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395 Bopts (B) := new String'(Full_Switch);
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396 B := B + 1;
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397 end case;
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398 end loop;
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399
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400 -- if list filename has been specified, parse it
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401
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402 if List_Filename /= Null_Unbounded_String then
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403 Add_Files_From_List (To_String (List_Filename));
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404 end if;
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405
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406 -- Check if the set of parameters are compatible
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407
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408 if Build_Mode = Nil and then not Help and then not MDLL.Verbose then
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409 Raise_Exception (Syntax_Error'Identity, "nothing to do.");
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410 end if;
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411
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412 -- -n option but no file specified
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413
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414 if not Build_Import
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415 and then A = Afiles'First
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416 and then O = Ofiles'First
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417 then
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418 Raise_Exception
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419 (Syntax_Error'Identity,
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420 "-n specified but there are no objects to build the library.");
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421 end if;
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422
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423 -- Check if we want to build an import library (option -e and
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424 -- no file specified)
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425
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426 if Build_Mode = Dynamic_Lib
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427 and then A = Afiles'First
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428 and then O = Ofiles'First
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429 then
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430 Build_Mode := Import_Lib;
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431 end if;
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432
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433 -- If map file is to be generated, add linker option here
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434
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435 if Gen_Map_File and then Build_Mode = Import_Lib then
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436 Raise_Exception
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437 (Syntax_Error'Identity,
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438 "Can't generate a map file for an import library.");
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439 end if;
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440
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441 -- Check if only a dynamic library must be built
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442
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443 if Build_Mode = Dynamic_Lib and then not Build_Import then
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444 Build_Mode := Dynamic_Lib_Only;
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445 end if;
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446
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447 if O /= Ofiles'First then
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448 Objects_Files := new Argument_List'(Ofiles (1 .. O - 1));
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449 end if;
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450
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451 if A /= Afiles'First then
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452 Ali_Files := new Argument_List'(Afiles (1 .. A - 1));
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453 end if;
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454
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455 if G /= Gopts'First then
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456 Options := new Argument_List'(Gopts (1 .. G - 1));
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457 end if;
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458
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459 if L /= Lopts'First then
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460 Largs_Options := new Argument_List'(Lopts (1 .. L - 1));
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461 end if;
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462
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463 if B /= Bopts'First then
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464 Bargs_Options := new Argument_List'(Bopts (1 .. B - 1));
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465 end if;
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466
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467 exception
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468 when Invalid_Switch =>
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469 Raise_Exception
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|
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470 (Syntax_Error'Identity,
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471 Message => "Invalid Switch " & Full_Switch);
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|
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472
|
|
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473 when Invalid_Parameter =>
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|
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474 Raise_Exception
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|
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475 (Syntax_Error'Identity,
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|
|
476 Message => "No parameter for " & Full_Switch);
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|
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477 end Parse_Command_Line;
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|
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478
|
|
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479 -------------------
|
|
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480 -- Check_Context --
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|
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481 -------------------
|
|
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482
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|
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483 procedure Check_Context is
|
|
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484 begin
|
|
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485 Check (To_String (Def_Filename));
|
|
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486
|
|
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487 -- Check that each object file specified exists and raise exception
|
|
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488 -- Context_Error if it does not.
|
|
|
489
|
|
|
490 for F in Objects_Files'Range loop
|
|
|
491 Check (Objects_Files (F).all);
|
|
|
492 end loop;
|
|
|
493 end Check_Context;
|
|
|
494
|
|
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495 procedure Check_Version_And_Help is new Check_Version_And_Help_G (Syntax);
|
|
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496
|
|
|
497 -- Start of processing for Gnatdll
|
|
|
498
|
|
|
499 begin
|
|
|
500 Check_Version_And_Help ("GNATDLL", "1997");
|
|
|
501
|
|
|
502 if Ada.Command_Line.Argument_Count = 0 then
|
|
|
503 Help := True;
|
|
|
504 else
|
|
|
505 Parse_Command_Line;
|
|
|
506 end if;
|
|
|
507
|
|
|
508 if MDLL.Verbose or else Help then
|
|
|
509 New_Line;
|
|
|
510 Put_Line ("GNATDLL " & Version & " - Dynamic Libraries Builder");
|
|
|
511 New_Line;
|
|
|
512 end if;
|
|
|
513
|
|
|
514 MDLL.Utl.Locate;
|
|
|
515
|
|
|
516 if Help
|
|
|
517 or else (MDLL.Verbose and then Ada.Command_Line.Argument_Count = 1)
|
|
|
518 then
|
|
|
519 Syntax;
|
|
|
520 else
|
|
|
521 Check_Context;
|
|
|
522
|
|
|
523 case Build_Mode is
|
|
|
524 when Import_Lib =>
|
|
|
525 MDLL.Build_Import_Library
|
|
|
526 (To_String (Lib_Filename),
|
|
|
527 To_String (Def_Filename));
|
|
|
528
|
|
|
529 when Dynamic_Lib =>
|
|
|
530 MDLL.Build_Dynamic_Library
|
|
|
531 (Objects_Files.all,
|
|
|
532 Ali_Files.all,
|
|
|
533 Options.all,
|
|
|
534 Bargs_Options.all,
|
|
|
535 Largs_Options.all,
|
|
|
536 To_String (Lib_Filename),
|
|
|
537 To_String (Def_Filename),
|
|
|
538 To_String (DLL_Address),
|
|
|
539 Build_Import => True,
|
|
|
540 Relocatable => Must_Build_Relocatable,
|
|
|
541 Map_File => Gen_Map_File);
|
|
|
542
|
|
|
543 when Dynamic_Lib_Only =>
|
|
|
544 MDLL.Build_Dynamic_Library
|
|
|
545 (Objects_Files.all,
|
|
|
546 Ali_Files.all,
|
|
|
547 Options.all,
|
|
|
548 Bargs_Options.all,
|
|
|
549 Largs_Options.all,
|
|
|
550 To_String (Lib_Filename),
|
|
|
551 To_String (Def_Filename),
|
|
|
552 To_String (DLL_Address),
|
|
|
553 Build_Import => False,
|
|
|
554 Relocatable => Must_Build_Relocatable,
|
|
|
555 Map_File => Gen_Map_File);
|
|
|
556
|
|
|
557 when Nil =>
|
|
|
558 null;
|
|
|
559 end case;
|
|
|
560 end if;
|
|
|
561
|
|
|
562 Set_Exit_Status (Success);
|
|
|
563
|
|
|
564 exception
|
|
|
565 when SE : Syntax_Error =>
|
|
|
566 Put_Line ("Syntax error : " & Exception_Message (SE));
|
|
|
567 New_Line;
|
|
|
568 Syntax;
|
|
|
569 Set_Exit_Status (Failure);
|
|
|
570
|
|
|
571 when E : MDLL.Tools_Error | Context_Error =>
|
|
|
572 Put_Line (Exception_Message (E));
|
|
|
573 Set_Exit_Status (Failure);
|
|
|
574
|
|
|
575 when others =>
|
|
|
576 Put_Line ("gnatdll: INTERNAL ERROR. Please report");
|
|
|
577 Set_Exit_Status (Failure);
|
|
|
578 end Gnatdll;
|
