1------------------------------------------------------------------------------ 2-- -- 3-- GNAT COMPILER COMPONENTS -- 4-- -- 5-- G N A T X R E F -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1998-2004 Free Software Foundation, Inc. -- 10-- -- 11-- GNAT is free software; you can redistribute it and/or modify it under -- 12-- terms of the GNU General Public License as published by the Free Soft- -- 13-- ware Foundation; either version 2, or (at your option) any later ver- -- 14-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- 15-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 16-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- 17-- for more details. You should have received a copy of the GNU General -- 18-- Public License distributed with GNAT; see file COPYING. If not, write -- 19-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- 20-- MA 02111-1307, USA. -- 21-- -- 22-- GNAT was originally developed by the GNAT team at New York University. -- 23-- Extensive contributions were provided by Ada Core Technologies Inc. -- 24-- -- 25------------------------------------------------------------------------------ 26 27with Xr_Tabls; use Xr_Tabls; 28with Xref_Lib; use Xref_Lib; 29with Osint; use Osint; 30with Types; use Types; 31 32with Gnatvsn; 33with Opt; 34 35with Ada.Strings.Fixed; use Ada.Strings.Fixed; 36with Ada.Text_IO; use Ada.Text_IO; 37with GNAT.Command_Line; use GNAT.Command_Line; 38with GNAT.Strings; use GNAT.Strings; 39 40procedure Gnatxref is 41 Search_Unused : Boolean := False; 42 Local_Symbols : Boolean := True; 43 Prj_File : File_Name_String; 44 Prj_File_Length : Natural := 0; 45 Usage_Error : exception; 46 Full_Path_Name : Boolean := False; 47 Vi_Mode : Boolean := False; 48 Read_Only : Boolean := False; 49 Have_File : Boolean := False; 50 Der_Info : Boolean := False; 51 52 RTS_Specified : String_Access := null; 53 -- Used to detect multiple use of --RTS= switch 54 55 procedure Parse_Cmd_Line; 56 -- Parse every switch on the command line 57 58 procedure Write_Usage; 59 -- Print a small help page for program usage 60 61 -------------------- 62 -- Parse_Cmd_Line -- 63 -------------------- 64 65 procedure Parse_Cmd_Line is 66 begin 67 loop 68 case 69 GNAT.Command_Line.Getopt 70 ("a aI: aO: d f g h I: nostdinc nostdlib p: u v -RTS=") 71 is 72 when ASCII.NUL => 73 exit; 74 75 when 'a' => 76 if GNAT.Command_Line.Full_Switch = "a" then 77 Read_Only := True; 78 79 elsif GNAT.Command_Line.Full_Switch = "aI" then 80 Osint.Add_Src_Search_Dir (GNAT.Command_Line.Parameter); 81 82 else 83 Osint.Add_Lib_Search_Dir (GNAT.Command_Line.Parameter); 84 end if; 85 86 when 'd' => 87 Der_Info := True; 88 89 when 'f' => 90 Full_Path_Name := True; 91 92 when 'g' => 93 Local_Symbols := False; 94 95 when 'h' => 96 Write_Usage; 97 98 when 'I' => 99 Osint.Add_Src_Search_Dir (GNAT.Command_Line.Parameter); 100 Osint.Add_Lib_Search_Dir (GNAT.Command_Line.Parameter); 101 102 when 'n' => 103 if GNAT.Command_Line.Full_Switch = "nostdinc" then 104 Opt.No_Stdinc := True; 105 elsif GNAT.Command_Line.Full_Switch = "nostlib" then 106 Opt.No_Stdlib := True; 107 end if; 108 109 when 'p' => 110 declare 111 S : constant String := GNAT.Command_Line.Parameter; 112 begin 113 Prj_File_Length := S'Length; 114 Prj_File (1 .. Prj_File_Length) := S; 115 end; 116 117 when 'u' => 118 Search_Unused := True; 119 Vi_Mode := False; 120 121 when 'v' => 122 Vi_Mode := True; 123 Search_Unused := False; 124 125 -- The only switch starting with -- recognized is --RTS 126 127 when '-' => 128 129 -- Check that it is the first time we see this switch 130 131 if RTS_Specified = null then 132 RTS_Specified := new String'(GNAT.Command_Line.Parameter); 133 134 elsif RTS_Specified.all /= GNAT.Command_Line.Parameter then 135 Osint.Fail ("--RTS cannot be specified multiple times"); 136 end if; 137 138 Opt.No_Stdinc := True; 139 Opt.RTS_Switch := True; 140 141 declare 142 Src_Path_Name : constant String_Ptr := 143 Get_RTS_Search_Dir 144 (GNAT.Command_Line.Parameter, Include); 145 146 Lib_Path_Name : constant String_Ptr := 147 Get_RTS_Search_Dir 148 (GNAT.Command_Line.Parameter, Objects); 149 150 begin 151 if Src_Path_Name /= null and then Lib_Path_Name /= null then 152 Add_Search_Dirs (Src_Path_Name, Include); 153 Add_Search_Dirs (Lib_Path_Name, Objects); 154 155 elsif Src_Path_Name = null and then Lib_Path_Name = null then 156 Osint.Fail ("RTS path not valid: missing " & 157 "adainclude and adalib directories"); 158 159 elsif Src_Path_Name = null then 160 Osint.Fail ("RTS path not valid: missing " & 161 "adainclude directory"); 162 163 elsif Lib_Path_Name = null then 164 Osint.Fail ("RTS path not valid: missing " & 165 "adalib directory"); 166 end if; 167 end; 168 169 when others => 170 Write_Usage; 171 end case; 172 end loop; 173 174 -- Get the other arguments 175 176 loop 177 declare 178 S : constant String := GNAT.Command_Line.Get_Argument; 179 180 begin 181 exit when S'Length = 0; 182 183 if Ada.Strings.Fixed.Index (S, ":") /= 0 then 184 Ada.Text_IO.Put_Line 185 ("Only file names are allowed on the command line"); 186 Write_Usage; 187 end if; 188 189 Add_Xref_File (S); 190 Have_File := True; 191 end; 192 end loop; 193 194 exception 195 when GNAT.Command_Line.Invalid_Switch => 196 Ada.Text_IO.Put_Line ("Invalid switch : " 197 & GNAT.Command_Line.Full_Switch); 198 Write_Usage; 199 200 when GNAT.Command_Line.Invalid_Parameter => 201 Ada.Text_IO.Put_Line ("Parameter missing for : " 202 & GNAT.Command_Line.Full_Switch); 203 Write_Usage; 204 end Parse_Cmd_Line; 205 206 ----------------- 207 -- Write_Usage -- 208 ----------------- 209 210 procedure Write_Usage is 211 begin 212 Put_Line ("GNATXREF " & Gnatvsn.Gnat_Version_String 213 & " Copyright 1998-2004, Ada Core Technologies Inc."); 214 Put_Line ("Usage: gnatxref [switches] file1 file2 ..."); 215 New_Line; 216 Put_Line (" file ... list of source files to xref, " & 217 "including with'ed units"); 218 New_Line; 219 Put_Line ("gnatxref switches:"); 220 Put_Line (" -a Consider all files, even when the ali file is" 221 & " readonly"); 222 Put_Line (" -aIdir Specify source files search path"); 223 Put_Line (" -aOdir Specify library/object files search path"); 224 Put_Line (" -d Output derived type information"); 225 Put_Line (" -f Output full path name"); 226 Put_Line (" -g Output information only for global symbols"); 227 Put_Line (" -Idir Like -aIdir -aOdir"); 228 Put_Line (" -nostdinc Don't look for sources in the system default" 229 & " directory"); 230 Put_Line (" -nostdlib Don't look for library files in the system" 231 & " default directory"); 232 Put_Line (" --RTS=dir specify the default source and object search" 233 & " path"); 234 Put_Line (" -p file Use file as the default project file"); 235 Put_Line (" -u List unused entities"); 236 Put_Line (" -v Print a 'tags' file for vi"); 237 New_Line; 238 239 raise Usage_Error; 240 end Write_Usage; 241 242begin 243 Parse_Cmd_Line; 244 245 if not Have_File then 246 Write_Usage; 247 end if; 248 249 Xr_Tabls.Set_Default_Match (True); 250 251 -- Find the project file 252 253 if Prj_File_Length = 0 then 254 Xr_Tabls.Create_Project_File 255 (Default_Project_File (Osint.To_Host_Dir_Spec (".", False).all)); 256 else 257 Xr_Tabls.Create_Project_File (Prj_File (1 .. Prj_File_Length)); 258 end if; 259 260 -- Fill up the table 261 262 Search_Xref (Local_Symbols, Read_Only, Der_Info); 263 264 if Search_Unused then 265 Print_Unused (Full_Path_Name); 266 elsif Vi_Mode then 267 Print_Vi (Full_Path_Name); 268 else 269 Print_Xref (Full_Path_Name); 270 end if; 271 272exception 273 when Usage_Error => 274 null; 275end Gnatxref; 276