1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2004 Free Software Foundation, Inc. --
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. --
22 -- GNAT was originally developed by the GNAT team at New York University. --
23 -- Extensive contributions were provided by Ada Core Technologies Inc. --
25 ------------------------------------------------------------------------------
28 with ALI.Util; use ALI.Util;
29 with Bcheck; use Bcheck;
30 with Binde; use Binde;
31 with Binderr; use Binderr;
32 with Bindgen; use Bindgen;
34 with Butil; use Butil;
35 with Casing; use Casing;
38 with Gnatvsn; use Gnatvsn;
39 with Namet; use Namet;
41 with Osint; use Osint;
42 with Osint.B; use Osint.B;
43 with Output; use Output;
44 with Rident; use Rident;
45 with Switch; use Switch;
46 with Switch.B; use Switch.B;
47 with Targparm; use Targparm;
48 with Types; use Types;
50 with System.Case_Util; use System.Case_Util;
54 Total_Errors : Nat := 0;
55 -- Counts total errors in all files
57 Total_Warnings : Nat := 0;
58 -- Total warnings in all files
60 Main_Lib_File : File_Name_Type;
61 -- Current main library file
63 Std_Lib_File : File_Name_Type;
66 Text : Text_Buffer_Ptr;
69 Output_File_Name_Seen : Boolean := False;
70 Output_File_Name : String_Ptr := new String'("");
72 L_Switch_Seen : Boolean := False;
74 Mapping_File : String_Ptr := null;
76 procedure List_Applicable_Restrictions;
77 -- List restrictions that apply to this partition if option taken
79 procedure Scan_Bind_Arg (Argv : String);
80 -- Scan and process binder specific arguments. Argv is a single argument.
81 -- All the one character arguments are still handled by Switch. This
82 -- routine handles -aO -aI and -I-.
84 ----------------------------------
85 -- List_Applicable_Restrictions --
86 ----------------------------------
88 procedure List_Applicable_Restrictions is
90 -- Define those restrictions that should be output if the gnatbind
91 -- -r switch is used. Not all restrictions are output for the reasons
92 -- given above in the list, and this array is used to test whether
93 -- the corresponding pragma should be listed. True means that it
94 -- should not be listed.
96 No_Restriction_List : constant array (All_Restrictions) of Boolean :=
97 (No_Exceptions => True,
98 -- Has unexpected Suppress (All_Checks) effect
100 No_Implicit_Conditionals => True,
101 -- This could modify and pessimize generated code
103 No_Implicit_Dynamic_Code => True,
104 -- This could modify and pessimize generated code
106 No_Implicit_Loops => True,
107 -- This could modify and pessimize generated code
109 No_Recursion => True,
110 -- Not checkable at compile time
112 No_Reentrancy => True,
113 -- Not checkable at compile time
115 Max_Entry_Queue_Depth => True,
116 -- Not checkable at compile time
118 Max_Storage_At_Blocking => True,
119 -- Not checkable at compile time
123 Additional_Restrictions_Listed : Boolean := False;
124 -- Set True if we have listed header for restrictions
127 -- Loop through restrictions
129 for R in All_Restrictions loop
130 if not No_Restriction_List (R) then
132 -- We list a restriction if it is not violated, or if
133 -- it is violated but the violation count is exactly known.
135 if Cumulative_Restrictions.Violated (R) = False
136 or else (R in All_Parameter_Restrictions
138 Cumulative_Restrictions.Unknown (R) = False)
140 if not Additional_Restrictions_Listed then
143 ("The following additional restrictions may be" &
144 " applied to this partition:");
145 Additional_Restrictions_Listed := True;
148 Write_Str ("pragma Restrictions (");
151 S : constant String := Restriction_Id'Image (R);
153 Name_Len := S'Length;
154 Name_Buffer (1 .. Name_Len) := S;
157 Set_Casing (Mixed_Case);
158 Write_Str (Name_Buffer (1 .. Name_Len));
160 if R in All_Parameter_Restrictions then
162 Write_Int (Int (Cumulative_Restrictions.Count (R)));
170 end List_Applicable_Restrictions;
176 procedure Scan_Bind_Arg (Argv : String) is
178 -- Now scan arguments that are specific to the binder and are not
179 -- handled by the common circuitry in Switch.
181 if Opt.Output_File_Name_Present
182 and then not Output_File_Name_Seen
184 Output_File_Name_Seen := True;
187 or else (Argv'Length >= 1 and then Argv (1) = '-')
189 Fail ("output File_Name missing after -o");
192 Output_File_Name := new String'(Argv);
195 elsif Argv'Length >= 2 and then Argv (1) = '-' then
199 if Argv (2 .. Argv'Last) = "I-" then
200 Opt.Look_In_Primary_Dir := False;
204 elsif Argv (2) = 'I' then
205 Add_Src_Search_Dir (Argv (3 .. Argv'Last));
206 Add_Lib_Search_Dir (Argv (3 .. Argv'Last));
210 elsif Argv (2) = 'L' then
211 if Argv'Length >= 3 then
213 -- Remember that the -L switch was specified, so that if this
214 -- is on OpenVMS, the export names are put in uppercase.
215 -- This is not known before the target parameters are read.
217 L_Switch_Seen := True;
219 Opt.Bind_For_Library := True;
221 new String'(Argv (3 .. Argv'Last) & Opt.Ada_Init_Suffix);
222 Opt.Ada_Final_Name :=
223 new String'(Argv (3 .. Argv'Last) & Opt.Ada_Final_Suffix);
225 new String'(Argv (3 .. Argv'Last) & Opt.Ada_Main_Name_Suffix);
227 -- This option (-Lxxx) implies -n
229 Opt.Bind_Main_Program := False;
233 ("Prefix of initialization and finalization " &
234 "procedure names missing in -L");
237 -- -Sin -Slo -Shi -Sxx
239 elsif Argv'Length = 4
240 and then Argv (2) = 'S'
243 C1 : Character := Argv (3);
244 C2 : Character := Argv (4);
247 -- Fold to upper case
249 if C1 in 'a' .. 'z' then
250 C1 := Character'Val (Character'Pos (C1) - 32);
253 if C2 in 'a' .. 'z' then
254 C2 := Character'Val (Character'Pos (C2) - 32);
257 -- Test valid option and set mode accordingly
259 if C1 = 'E' and then C2 = 'V' then
262 elsif C1 = 'I' and then C2 = 'N' then
265 elsif C1 = 'L' and then C2 = 'O' then
268 elsif C1 = 'H' and then C2 = 'I' then
271 elsif (C1 in '0' .. '9' or else C1 in 'A' .. 'F')
273 (C2 in '0' .. '9' or else C2 in 'A' .. 'F')
277 -- Invalid -S switch, let Switch give error, set defalut of IN
280 Scan_Binder_Switches (Argv);
285 Initialize_Scalars_Mode1 := C1;
286 Initialize_Scalars_Mode2 := C2;
291 elsif Argv'Length >= 3
292 and then Argv (2 .. 3) = "aI"
294 Add_Src_Search_Dir (Argv (4 .. Argv'Last));
298 elsif Argv'Length >= 3
299 and then Argv (2 .. 3) = "aO"
301 Add_Lib_Search_Dir (Argv (4 .. Argv'Last));
305 elsif Argv (2 .. Argv'Last) = "nostdlib" then
306 Opt.No_Stdlib := True;
310 elsif Argv (2 .. Argv'Last) = "nostdinc" then
311 Opt.No_Stdinc := True;
315 elsif Argv (2 .. Argv'Last) = "static" then
316 Opt.Shared_Libgnat := False;
320 elsif Argv (2 .. Argv'Last) = "shared" then
321 Opt.Shared_Libgnat := True;
325 elsif Argv'Length >= 4 and then Argv (2 .. 3) = "F=" then
326 if Mapping_File /= null then
327 Fail ("cannot specify several mapping files");
330 Mapping_File := new String'(Argv (4 .. Argv'Last));
334 elsif Argv'Length >= 3 and then Argv (2) = 'M' then
335 Opt.Bind_Alternate_Main_Name := True;
336 Opt.Alternate_Main_Name := new String'(Argv (3 .. Argv'Last));
338 -- All other options are single character and are handled
339 -- by Scan_Binder_Switches.
342 Scan_Binder_Switches (Argv);
345 -- Not a switch, so must be a file name (if non-empty)
347 elsif Argv'Length /= 0 then
349 and then Argv (Argv'Last - 3 .. Argv'Last) = ".ali"
353 Add_File (Argv & ".ali");
358 -- Start of processing for Gnatbind
362 -- Set default for Shared_Libgnat option
365 Shared_Libgnat_Default : Character;
366 pragma Import (C, Shared_Libgnat_Default, "shared_libgnat_default");
368 SHARED : constant Character := 'H';
369 STATIC : constant Character := 'T';
373 (Shared_Libgnat_Default = SHARED
375 Shared_Libgnat_Default = STATIC);
376 Shared_Libgnat := (Shared_Libgnat_Default = SHARED);
379 -- Use low level argument routines to avoid dragging in the secondary stack
382 Scan_Args : while Next_Arg < Arg_Count loop
384 Next_Argv : String (1 .. Len_Arg (Next_Arg));
387 Fill_Arg (Next_Argv'Address, Next_Arg);
388 Scan_Bind_Arg (Next_Argv);
390 Next_Arg := Next_Arg + 1;
393 -- Test for trailing -o switch
395 if Opt.Output_File_Name_Present
396 and then not Output_File_Name_Seen
398 Fail ("output file name missing after -o");
401 -- Output usage if requested
403 if Usage_Requested then
407 -- Check that the Ada binder file specified has extension .adb and that
408 -- the C binder file has extension .c
410 if Opt.Output_File_Name_Present
411 and then Output_File_Name_Seen
413 Check_Extensions : declare
414 Length : constant Natural := Output_File_Name'Length;
415 Last : constant Natural := Output_File_Name'Last;
418 if Ada_Bind_File then
420 or else Output_File_Name (Last - 3 .. Last) /= ".adb"
422 Fail ("output file name should have .adb extension");
427 or else Output_File_Name (Last - 1 .. Last) /= ".c"
429 Fail ("output file name should have .c extension");
432 end Check_Extensions;
435 Osint.Add_Default_Search_Dirs;
437 -- Carry out package initializations. These are initializations which
438 -- might logically be performed at elaboration time, but Namet at
439 -- least can't be done that way (because it is used in the Compiler),
440 -- and we decide to be consistent. Like elaboration, the order in
441 -- which these calls are made is in some cases important.
446 -- Acquire target parameters
448 Targparm.Get_Target_Parameters;
450 -- Initialize Cumulative_Restrictions with the restrictions on the target
451 -- scanned from the system.ads file. Then as we read ALI files, we will
452 -- accumulate additional restrictions specified in other files.
454 Cumulative_Restrictions := Targparm.Restrictions_On_Target;
456 -- On OpenVMS, when -L is used, all external names used in pragmas Export
457 -- are in upper case. The reason is that on OpenVMS, the macro-assembler
458 -- MACASM-32, used to build Stand-Alone Libraries, only understands
461 if L_Switch_Seen and then OpenVMS_On_Target then
462 To_Upper (Opt.Ada_Init_Name.all);
463 To_Upper (Opt.Ada_Final_Name.all);
464 To_Upper (Opt.Ada_Main_Name.all);
467 -- Acquire configurable run-time mode
469 if Configurable_Run_Time_On_Target then
470 Configurable_Run_Time_Mode := True;
473 -- Output copyright notice if in verbose mode
477 Write_Str ("GNATBIND ");
478 Write_Str (Gnat_Version_String);
479 Write_Str (" Copyright 1995-2004 Free Software Foundation, Inc.");
483 -- Output usage information if no files
485 if not More_Lib_Files then
487 Exit_Program (E_Fatal);
490 -- If a mapping file was specified, initialize the file mapping
492 if Mapping_File /= null then
493 Fmap.Initialize (Mapping_File.all);
496 -- The block here is to catch the Unrecoverable_Error exception in the
497 -- case where we exceed the maximum number of permissible errors or some
498 -- other unrecoverable error occurs.
501 -- Initialize binder packages
505 Initialize_ALI_Source;
513 while More_Lib_Files loop
514 Main_Lib_File := Next_Main_Lib_File;
518 Write_Str ("Checking: ");
520 Write_Str ("Binding: ");
523 Write_Name (Main_Lib_File);
527 Text := Read_Library_Info (Main_Lib_File, True);
531 pragma Warnings (Off, Id);
537 Ignore_ED => Force_RM_Elaboration_Order,
546 if No_Run_Time_Mode then
548 -- Set standard configuration parameters
550 Suppress_Standard_Library_On_Target := True;
551 Configurable_Run_Time_Mode := True;
554 -- For main ALI files, even if they are interfaces, we get their
555 -- dependencies. To be sure, we reset the Interface flag for all main
558 for Index in ALIs.First .. ALIs.Last loop
559 ALIs.Table (Index).Interface := False;
562 -- Add System.Standard_Library to list to ensure that these files are
563 -- included in the bind, even if not directly referenced from Ada code
564 -- This is suppressed if the appropriate targparm switch is set.
566 if not Suppress_Standard_Library_On_Target then
567 Name_Buffer (1 .. 12) := "s-stalib.ali";
569 Std_Lib_File := Name_Find;
570 Text := Read_Library_Info (Std_Lib_File, True);
574 pragma Warnings (Off, Id);
581 Ignore_ED => Force_RM_Elaboration_Order,
588 -- Acquire all information in ALI files that have been read in
590 for Index in ALIs.First .. ALIs.Last loop
594 -- Warn if -f switch used
596 if Force_RM_Elaboration_Order then
598 ("?-f is obsolescent and should not be used");
600 ("?may result in missing run-time elaboration checks");
602 ("?use -gnatE, pragma Suppress (Elaboration_Checks) instead");
605 -- Quit if some file needs compiling
607 if No_Object_Specified then
608 raise Unrecoverable_Error;
611 -- Build source file table from the ALI files we have read in
615 -- Check that main library file is a suitable main program
618 and then ALIs.Table (ALIs.First).Main_Program = None
619 and then not No_Main_Subprogram
621 Error_Msg_Name_1 := Main_Lib_File;
622 Error_Msg ("% does not contain a unit that can be a main program");
625 -- Perform consistency and correctness checks
627 Check_Duplicated_Subunits;
630 Check_Configuration_Consistency;
632 -- List restrictions that could be applied to this partition
634 if List_Restrictions then
635 List_Applicable_Restrictions;
638 -- Complete bind if no errors
640 if Errors_Detected = 0 then
643 if Errors_Detected = 0 then
644 if Elab_Order_Output then
646 Write_Str ("ELABORATION ORDER");
649 for J in Elab_Order.First .. Elab_Order.Last loop
650 if not Units.Table (Elab_Order.Table (J)).Interface then
653 (Units.Table (Elab_Order.Table (J)).Uname);
661 if not Check_Only then
662 Gen_Output_File (Output_File_Name.all);
667 Total_Errors := Total_Errors + Errors_Detected;
668 Total_Warnings := Total_Warnings + Warnings_Detected;
671 when Unrecoverable_Error =>
672 Total_Errors := Total_Errors + Errors_Detected;
673 Total_Warnings := Total_Warnings + Warnings_Detected;
676 -- All done. Set proper exit status.
681 if Total_Errors > 0 then
682 Exit_Program (E_Errors);
683 elsif Total_Warnings > 0 then
684 Exit_Program (E_Warnings);
686 Exit_Program (E_Success);