1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
10 -- Copyright (C) 1992-2002 Free Software Foundation, Inc. --
12 -- GNAT is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 2, or (at your option) any later ver- --
15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
18 -- for more details. You should have received a copy of the GNU General --
19 -- Public License distributed with GNAT; see file COPYING. If not, write --
20 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
21 -- MA 02111-1307, USA. --
23 -- GNAT was originally developed by the GNAT team at New York University. --
24 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
26 ------------------------------------------------------------------------------
29 with ALI.Util; use ALI.Util;
30 with Binderr; use Binderr;
31 with Butil; use Butil;
32 with Fname; use Fname;
33 with Gnatvsn; use Gnatvsn;
34 with GNAT.OS_Lib; use GNAT.OS_Lib;
35 with Namet; use Namet;
37 with Osint; use Osint;
38 with Osint.L; use Osint.L;
39 with Output; use Output;
40 with Targparm; use Targparm;
41 with Types; use Types;
45 Max_Column : constant := 80;
48 OK, -- matching timestamp
49 Checksum_OK, -- only matching checksum
50 Not_Found, -- file not found on source PATH
51 Not_Same, -- neither checksum nor timestamp matching
52 Not_First_On_PATH); -- matching file hidden by Not_Same file on path
55 type Dir_Ref is access Dir_Data;
57 type Dir_Data is record
58 Value : String_Access;
63 First_Source_Dir : Dir_Ref;
64 Last_Source_Dir : Dir_Ref;
65 -- The list of source directories from the command line.
66 -- These directories are added using Osint.Add_Src_Search_Dir
67 -- after those of the GNAT Project File, if any.
69 First_Lib_Dir : Dir_Ref;
70 Last_Lib_Dir : Dir_Ref;
71 -- The list of object directories from the command line.
72 -- These directories are added using Osint.Add_Lib_Search_Dir
73 -- after those of the GNAT Project File, if any.
75 Main_File : File_Name_Type;
76 Ali_File : File_Name_Type;
78 Text : Text_Buffer_Ptr;
83 Too_Long : Boolean := False;
84 -- When True, lines are too long for multi-column output and each
85 -- item of information is on a different line.
87 Selective_Output : Boolean := False;
88 Print_Usage : Boolean := False;
89 Print_Unit : Boolean := True;
90 Print_Source : Boolean := True;
91 Print_Object : Boolean := True;
92 -- Flags controlling the form of the outpout
94 Dependable : Boolean := False; -- flag -d
95 Also_Predef : Boolean := False;
99 Source_Start : Integer;
100 Source_End : Integer;
101 Object_Start : Integer;
102 Object_End : Integer;
103 -- Various column starts and ends
105 Spaces : constant String (1 .. Max_Column) := (others => ' ');
107 -----------------------
108 -- Local Subprograms --
109 -----------------------
111 procedure Add_Lib_Dir (Dir : String; And_Save : Boolean);
112 -- Add an object directory, using Osint.Add_Lib_Search_Dir
113 -- if And_Save is False or keeping in the list First_Lib_Dir,
114 -- Last_Lib_Dir if And_Save is True.
116 procedure Add_Source_Dir (Dir : String; And_Save : Boolean);
117 -- Add a source directory, using Osint.Add_Src_Search_Dir
118 -- if And_Save is False or keeping in the list First_Source_Dir,
119 -- Last_Source_Dir if And_Save is True.
121 procedure Find_General_Layout;
122 -- Determine the structure of the output (multi columns or not, etc)
124 procedure Find_Status
125 (FS : in out File_Name_Type;
126 Stamp : Time_Stamp_Type;
128 Status : out File_Status);
129 -- Determine the file status (Status) of the file represented by FS
130 -- with the expected Stamp and checksum given as argument. FS will be
131 -- updated to the full file name if available.
133 function Corresponding_Sdep_Entry (A : ALI_Id; U : Unit_Id) return Sdep_Id;
134 -- Give the Sdep entry corresponding to the unit U in ali record A.
136 procedure Output_Object (O : File_Name_Type);
137 -- Print out the name of the object when requested
139 procedure Output_Source (Sdep_I : Sdep_Id);
140 -- Print out the name and status of the source corresponding to this
143 procedure Output_Status (FS : File_Status; Verbose : Boolean);
144 -- Print out FS either in a coded form if verbose is false or in an
145 -- expanded form otherwise.
147 procedure Output_Unit (U_Id : Unit_Id);
148 -- Print out information on the unit when requested
150 procedure Reset_Print;
151 -- Reset Print flags properly when selective output is chosen
153 procedure Scan_Ls_Arg (Argv : String; And_Save : Boolean);
154 -- Scan and process lser specific arguments. Argv is a single argument.
157 -- Print usage message.
163 procedure Add_Lib_Dir (Dir : String; And_Save : Boolean) is
166 if First_Lib_Dir = null then
169 (Value => new String'(Dir),
171 Last_Lib_Dir := First_Lib_Dir;
176 (Value => new String'(Dir),
178 Last_Lib_Dir := Last_Lib_Dir.Next;
182 Add_Lib_Search_Dir (Dir);
190 procedure Add_Source_Dir (Dir : String; And_Save : Boolean) is
193 if First_Source_Dir = null then
196 (Value => new String'(Dir),
198 Last_Source_Dir := First_Source_Dir;
201 Last_Source_Dir.Next :=
203 (Value => new String'(Dir),
205 Last_Source_Dir := Last_Source_Dir.Next;
209 Add_Src_Search_Dir (Dir);
213 ------------------------------
214 -- Corresponding_Sdep_Entry --
215 ------------------------------
217 function Corresponding_Sdep_Entry
223 for D in ALIs.Table (A).First_Sdep .. ALIs.Table (A).Last_Sdep loop
224 if Sdep.Table (D).Sfile = Units.Table (U).Sfile then
229 Error_Msg_Name_1 := Units.Table (U).Uname;
230 Error_Msg_Name_2 := ALIs.Table (A).Afile;
232 Error_Msg ("wrong ALI format, can't find dependency line for & in %");
233 Exit_Program (E_Fatal);
234 end Corresponding_Sdep_Entry;
236 -------------------------
237 -- Find_General_Layout --
238 -------------------------
240 procedure Find_General_Layout is
241 Max_Unit_Length : Integer := 11;
242 Max_Src_Length : Integer := 11;
243 Max_Obj_Length : Integer := 11;
249 -- Compute maximum of each column
251 for Id in ALIs.First .. ALIs.Last loop
253 Get_Name_String (Units.Table (ALIs.Table (Id).First_Unit).Uname);
254 if Also_Predef or else not Is_Internal_Unit then
258 Max_Unit_Length := Integer'Max (Max_Unit_Length, Len);
262 FS := Full_Source_Name (ALIs.Table (Id).Sfile);
265 Get_Name_String (ALIs.Table (Id).Sfile);
266 Name_Len := Name_Len + 13;
268 Get_Name_String (FS);
271 Max_Src_Length := Integer'Max (Max_Src_Length, Name_Len + 1);
275 Get_Name_String (ALIs.Table (Id).Ofile_Full_Name);
276 Max_Obj_Length := Integer'Max (Max_Obj_Length, Name_Len + 1);
281 -- Verify is output is not wider than maximum number of columns
283 Too_Long := Verbose_Mode or else
284 (Max_Unit_Length + Max_Src_Length + Max_Obj_Length) > Max_Column;
286 -- Set start and end of columns.
289 Object_End := Object_Start - 1;
292 Object_End := Object_Start + Max_Obj_Length;
295 Unit_Start := Object_End + 1;
296 Unit_End := Unit_Start - 1;
299 Unit_End := Unit_Start + Max_Unit_Length;
302 Source_Start := Unit_End + 1;
304 if Source_Start > Spaces'Last then
305 Source_Start := Spaces'Last;
308 Source_End := Source_Start - 1;
311 Source_End := Source_Start + Max_Src_Length;
313 end Find_General_Layout;
319 procedure Find_Status
320 (FS : in out File_Name_Type;
321 Stamp : Time_Stamp_Type;
323 Status : out File_Status)
325 Tmp1 : File_Name_Type;
326 Tmp2 : File_Name_Type;
329 Tmp1 := Full_Source_Name (FS);
331 if Tmp1 = No_File then
334 elsif File_Stamp (Tmp1) = Stamp then
338 elsif Checksums_Match (Get_File_Checksum (FS), Checksum) then
340 Status := Checksum_OK;
343 Tmp2 := Matching_Full_Source_Name (FS, Stamp);
345 if Tmp2 = No_File then
350 Status := Not_First_On_PATH;
360 procedure Output_Object (O : File_Name_Type) is
361 Object_Name : String_Access;
366 Object_Name := To_Host_File_Spec (Name_Buffer (1 .. Name_Len));
367 Write_Str (Object_Name.all);
369 if Print_Source or else Print_Unit then
375 (Object_Start + Object_Name'Length .. Object_End));
385 procedure Output_Source (Sdep_I : Sdep_Id) is
386 Stamp : constant Time_Stamp_Type := Sdep.Table (Sdep_I).Stamp;
387 Checksum : constant Word := Sdep.Table (Sdep_I).Checksum;
388 FS : File_Name_Type := Sdep.Table (Sdep_I).Sfile;
389 Status : File_Status;
390 Object_Name : String_Access;
394 Find_Status (FS, Stamp, Checksum, Status);
395 Get_Name_String (FS);
397 Object_Name := To_Host_File_Spec (Name_Buffer (1 .. Name_Len));
400 Write_Str (" Source => ");
401 Write_Str (Object_Name.all);
405 (Spaces (Source_Start + Object_Name'Length .. Source_End));
408 Output_Status (Status, Verbose => True);
413 if not Selective_Output then
414 Output_Status (Status, Verbose => False);
417 Write_Str (Object_Name.all);
426 procedure Output_Status (FS : File_Status; Verbose : Boolean) is
431 Write_Str (" unchanged");
434 Write_Str (" slightly modified");
437 Write_Str (" file not found");
440 Write_Str (" modified");
442 when Not_First_On_PATH =>
443 Write_Str (" unchanged version not first on PATH");
460 when Not_First_On_PATH =>
470 procedure Output_Unit (U_Id : Unit_Id) is
472 U : Unit_Record renames Units.Table (U_Id);
476 Get_Name_String (U.Uname);
477 Kind := Name_Buffer (Name_Len);
478 Name_Len := Name_Len - 2;
480 if not Verbose_Mode then
481 Write_Str (Name_Buffer (1 .. Name_Len));
484 Write_Str ("Unit => ");
485 Write_Eol; Write_Str (" Name => ");
486 Write_Str (Name_Buffer (1 .. Name_Len));
487 Write_Eol; Write_Str (" Kind => ");
489 if Units.Table (U_Id).Unit_Kind = 'p' then
490 Write_Str ("package ");
492 Write_Str ("subprogram ");
512 Write_Eol; Write_Str (" Flags =>");
515 Write_Str (" Preelaborable");
519 Write_Str (" No_Elab_Code");
526 if U.Elaborate_Body then
527 Write_Str (" Elaborate Body");
530 if U.Remote_Types then
531 Write_Str (" Remote_Types");
534 if U.Shared_Passive then
535 Write_Str (" Shared_Passive");
539 Write_Str (" Predefined");
543 Write_Str (" Remote_Call_Interface");
550 Write_Eol; Write_Str (" ");
552 Write_Str (Spaces (Unit_Start + Name_Len + 1 .. Unit_End));
562 procedure Reset_Print is
564 if not Selective_Output then
565 Selective_Output := True;
566 Print_Source := False;
567 Print_Object := False;
576 procedure Scan_Ls_Arg (Argv : String; And_Save : Boolean) is
578 pragma Assert (Argv'First = 1);
580 if Argv'Length = 0 then
584 if Argv (1) = '-' then
586 if Argv'Length = 1 then
587 Fail ("switch character cannot be followed by a blank");
589 -- Processing for -I-
591 elsif Argv (2 .. Argv'Last) = "I-" then
592 Opt.Look_In_Primary_Dir := False;
594 -- Forbid -?- or -??- where ? is any character
596 elsif (Argv'Length = 3 and then Argv (3) = '-')
597 or else (Argv'Length = 4 and then Argv (4) = '-')
599 Fail ("Trailing ""-"" at the end of ", Argv, " forbidden.");
601 -- Processing for -Idir
603 elsif Argv (2) = 'I' then
604 Add_Source_Dir (Argv (3 .. Argv'Last), And_Save);
605 Add_Lib_Dir (Argv (3 .. Argv'Last), And_Save);
607 -- Processing for -aIdir (to gcc this is like a -I switch)
609 elsif Argv'Length >= 3 and then Argv (2 .. 3) = "aI" then
610 Add_Source_Dir (Argv (4 .. Argv'Last), And_Save);
612 -- Processing for -aOdir
614 elsif Argv'Length >= 3 and then Argv (2 .. 3) = "aO" then
615 Add_Lib_Dir (Argv (4 .. Argv'Last), And_Save);
617 -- Processing for -aLdir (to gnatbind this is like a -aO switch)
619 elsif Argv'Length >= 3 and then Argv (2 .. 3) = "aL" then
620 Add_Lib_Dir (Argv (4 .. Argv'Last), And_Save);
622 -- Processing for -nostdinc
624 elsif Argv (2 .. Argv'Last) = "nostdinc" then
625 Opt.No_Stdinc := True;
627 -- Processing for one character switches
629 elsif Argv'Length = 2 then
631 when 'a' => Also_Predef := True;
632 when 'h' => Print_Usage := True;
633 when 'u' => Reset_Print; Print_Unit := True;
634 when 's' => Reset_Print; Print_Source := True;
635 when 'o' => Reset_Print; Print_Object := True;
636 when 'v' => Verbose_Mode := True;
637 when 'd' => Dependable := True;
642 -- Processing for --RTS=path
644 elsif Argv (1 .. 5) = "--RTS" then
646 if Argv (6) /= '=' or else
648 and then Argv'Length = 6)
650 Osint.Fail ("missing path for --RTS");
653 -- Valid --RTS switch
655 Opt.No_Stdinc := True;
656 Opt.RTS_Switch := True;
659 Src_Path_Name : String_Ptr :=
662 (Argv (7 .. Argv'Last), Include));
663 Lib_Path_Name : String_Ptr :=
666 (Argv (7 .. Argv'Last), Objects));
669 if Src_Path_Name /= null
670 and then Lib_Path_Name /= null
672 Add_Search_Dirs (Src_Path_Name, Include);
673 Add_Search_Dirs (Lib_Path_Name, Objects);
675 elsif Src_Path_Name = null
676 and then Lib_Path_Name = null
678 Osint.Fail ("RTS path not valid: missing " &
679 "adainclude and adalib directories");
681 elsif Src_Path_Name = null then
682 Osint.Fail ("RTS path not valid: missing " &
683 "adainclude directory");
685 elsif Lib_Path_Name = null then
686 Osint.Fail ("RTS path not valid: missing " &
693 -- If not a switch, it must be a file name
706 -- Start of processing for Usage
711 Write_Str ("Usage: ");
712 Osint.Write_Program_Name;
713 Write_Str (" switches [list of object files]");
719 Write_Str ("switches:");
724 Write_Str (" -a also output relevant predefined units");
729 Write_Str (" -u output only relevant unit names");
734 Write_Str (" -h output this help message");
739 Write_Str (" -s output only relevant source names");
744 Write_Str (" -o output only relevant object names");
749 Write_Str (" -d output sources on which specified units depend");
754 Write_Str (" -v verbose output, full path and unit information");
758 -- Line for -aI switch
760 Write_Str (" -aIdir specify source files search path");
763 -- Line for -aO switch
765 Write_Str (" -aOdir specify object files search path");
768 -- Line for -I switch
770 Write_Str (" -Idir like -aIdir -aOdir");
773 -- Line for -I- switch
775 Write_Str (" -I- do not look for sources & object files");
776 Write_Str (" in the default directory");
779 -- Line for -nostdinc
781 Write_Str (" -nostdinc do not look for source files");
782 Write_Str (" in the system default directory");
787 Write_Str (" --RTS=dir specify the default source and object search"
791 -- File Status explanation
794 Write_Str (" file status can be:");
797 for ST in File_Status loop
799 Output_Status (ST, Verbose => False);
801 Output_Status (ST, Verbose => True);
807 -- Start of processing for Gnatls
811 -- Use low level argument routines to avoid dragging in the secondary stack
815 Scan_Args : while Next_Arg < Arg_Count loop
817 Next_Argv : String (1 .. Len_Arg (Next_Arg));
820 Fill_Arg (Next_Argv'Address, Next_Arg);
821 Scan_Ls_Arg (Next_Argv, And_Save => True);
824 Next_Arg := Next_Arg + 1;
827 -- Add the source and object directories specified on the
828 -- command line, if any, to the searched directories.
830 while First_Source_Dir /= null loop
831 Add_Src_Search_Dir (First_Source_Dir.Value.all);
832 First_Source_Dir := First_Source_Dir.Next;
835 while First_Lib_Dir /= null loop
836 Add_Lib_Search_Dir (First_Lib_Dir.Value.all);
837 First_Lib_Dir := First_Lib_Dir.Next;
840 -- Finally, add the default directories and obtain target parameters
842 Osint.Add_Default_Search_Dirs;
846 Targparm.Get_Target_Parameters;
848 -- WARNING: the output of gnatls -v is used during the compilation
849 -- and installation of GLADE to recreate sdefault.adb and locate
850 -- the libgnat.a to use. Any change in the output of gnatls -v must
851 -- be synchronized with the GLADE Dist/config.sdefault shell script.
854 Write_Str ("GNATLS ");
856 if Targparm.High_Integrity_Mode_On_Target then
857 Write_Str ("Pro High Integrity ");
860 Write_Str (Gnat_Version_String);
861 Write_Str (" Copyright 1997-2002 Free Software Foundation, Inc.");
864 Write_Str ("Source Search Path:");
867 for J in 1 .. Nb_Dir_In_Src_Search_Path loop
870 if Dir_In_Src_Search_Path (J)'Length = 0 then
871 Write_Str ("<Current_Directory>");
873 Write_Str (To_Host_Dir_Spec
874 (Dir_In_Src_Search_Path (J).all, True).all);
882 Write_Str ("Object Search Path:");
885 for J in 1 .. Nb_Dir_In_Obj_Search_Path loop
888 if Dir_In_Obj_Search_Path (J)'Length = 0 then
889 Write_Str ("<Current_Directory>");
891 Write_Str (To_Host_Dir_Spec
892 (Dir_In_Obj_Search_Path (J).all, True).all);
901 -- Output usage information when requested
907 if not More_Lib_Files then
908 if not Print_Usage and then not Verbose_Mode then
912 Exit_Program (E_Fatal);
917 Initialize_ALI_Source;
919 -- Print out all library for which no ALI files can be located
921 while More_Lib_Files loop
922 Main_File := Next_Main_Lib_File;
923 Ali_File := Full_Lib_File_Name (Lib_File_Name (Main_File));
925 if Ali_File = No_File then
926 Write_Str ("Can't find library info for ");
927 Get_Decoded_Name_String (Main_File);
929 Write_Str (Name_Buffer (1 .. Name_Len));
934 Ali_File := Strip_Directory (Ali_File);
936 if Get_Name_Table_Info (Ali_File) = 0 then
937 Text := Read_Library_Info (Ali_File, True);
940 (Ali_File, Text, Ignore_ED => False, Err => False);
947 for Id in ALIs.First .. ALIs.Last loop
952 Get_Name_String (Units.Table (ALIs.Table (Id).First_Unit).Uname);
954 if Also_Predef or else not Is_Internal_Unit then
955 Output_Object (ALIs.Table (Id).Ofile_Full_Name);
957 -- In verbose mode print all main units in the ALI file, otherwise
958 -- just print the first one to ease columnwise printout
961 Last_U := ALIs.Table (Id).Last_Unit;
963 Last_U := ALIs.Table (Id).First_Unit;
966 for U in ALIs.Table (Id).First_Unit .. Last_U loop
967 if U /= ALIs.Table (Id).First_Unit
968 and then Selective_Output
976 -- Output source now, unless if it will be done as part of
977 -- outputing dependencies.
979 if not (Dependable and then Print_Source) then
980 Output_Source (Corresponding_Sdep_Entry (Id, U));
984 -- Print out list of dependable units
986 if Dependable and then Print_Source then
988 Write_Str ("depends upon");
997 ALIs.Table (Id).First_Sdep .. ALIs.Table (Id).Last_Sdep
1000 or else not Is_Internal_File_Name (Sdep.Table (D).Sfile)
1002 if Verbose_Mode then
1012 Write_Str (Spaces (1 .. Source_Start - 2));
1025 -- All done. Set proper exit status.
1028 Exit_Program (E_Success);