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2010-07-27 Paolo Carlini <paolo.carlini@oracle.com>
[official-gcc/alias-decl.git] / gcc / ada / mlib-prj.adb
blob97a4c16180fc7a55b578f8975967f1a9e7e62d82
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT COMPILER COMPONENTS --
4 -- --
5 -- M L I B . P R J --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 2001-2010, AdaCore --
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 3, 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 COPYING3. If not, go to --
19 -- http://www.gnu.org/licenses for a complete copy of the license. --
20 -- --
21 -- GNAT was originally developed by the GNAT team at New York University. --
22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
23 -- --
24 ------------------------------------------------------------------------------
25
26 with ALI; use ALI;
27 with Gnatvsn; use Gnatvsn;
28 with MLib.Fil; use MLib.Fil;
29 with MLib.Tgt; use MLib.Tgt;
30 with MLib.Utl; use MLib.Utl;
31 with Opt;
32 with Output; use Output;
33 with Prj.Com; use Prj.Com;
34 with Prj.Env; use Prj.Env;
35 with Prj.Util; use Prj.Util;
36 with Sinput.P;
37 with Snames; use Snames;
38 with Switch; use Switch;
39 with Table;
40 with Targparm; use Targparm;
41 with Tempdir;
42 with Types; use Types;
43
44 with Ada.Characters.Handling;
45
46 with GNAT.Directory_Operations; use GNAT.Directory_Operations;
47 with GNAT.HTable;
48 with Interfaces.C_Streams; use Interfaces.C_Streams;
49 with System; use System;
50 with System.Case_Util; use System.Case_Util;
51
52 package body MLib.Prj is
53
54 Prj_Add_Obj_Files : Types.Int;
55 pragma Import (C, Prj_Add_Obj_Files, "__gnat_prj_add_obj_files");
56 Add_Object_Files : constant Boolean := Prj_Add_Obj_Files /= 0;
57 -- Indicates if object files in pragmas Linker_Options (found in the
58 -- binder generated file) should be taken when linking a stand-alone
59 -- library. False for Windows, True for other platforms.
60
61 ALI_Suffix : constant String := ".ali";
62
63 B_Start : String_Ptr := new String'("b~");
64 -- Prefix of bind file, changed to b__ for VMS
65
66 S_Osinte_Ads : File_Name_Type := No_File;
67 -- Name_Id for "s-osinte.ads"
68
69 S_Dec_Ads : File_Name_Type := No_File;
70 -- Name_Id for "dec.ads"
71
72 G_Trasym_Ads : File_Name_Type := No_File;
73 -- Name_Id for "g-trasym.ads"
74
75 Arguments : String_List_Access := No_Argument;
76 -- Used to accumulate arguments for the invocation of gnatbind and of
77 -- the compiler. Also used to collect the interface ALI when copying
78 -- the ALI files to the library directory.
79
80 Argument_Number : Natural := 0;
81 -- Index of the last argument in Arguments
82
83 Initial_Argument_Max : constant := 10;
84
85 No_Main_String : aliased String := "-n";
86 No_Main : constant String_Access := No_Main_String'Access;
87
88 Output_Switch_String : aliased String := "-o";
89 Output_Switch : constant String_Access := Output_Switch_String'Access;
90
91 Compile_Switch_String : aliased String := "-c";
92 Compile_Switch : constant String_Access := Compile_Switch_String'Access;
93
94 Auto_Initialize : constant String := "-a";
95
96 -- List of objects to put inside the library
97
98 Object_Files : Argument_List_Access;
99
100 package Objects is new Table.Table
101 (Table_Name => "Mlib.Prj.Objects",
102 Table_Component_Type => String_Access,
103 Table_Index_Type => Natural,
104 Table_Low_Bound => 1,
105 Table_Initial => 50,
106 Table_Increment => 100);
107
108 package Objects_Htable is new GNAT.HTable.Simple_HTable
109 (Header_Num => Header_Num,
110 Element => Boolean,
111 No_Element => False,
112 Key => Name_Id,
113 Hash => Hash,
114 Equal => "=");
115
116 -- List of ALI files
117
118 Ali_Files : Argument_List_Access;
119
120 package ALIs is new Table.Table
121 (Table_Name => "Mlib.Prj.Alis",
122 Table_Component_Type => String_Access,
123 Table_Index_Type => Natural,
124 Table_Low_Bound => 1,
125 Table_Initial => 50,
126 Table_Increment => 100);
127
128 -- List of options set in the command line
129
130 Options : Argument_List_Access;
131
132 package Opts is new Table.Table
133 (Table_Name => "Mlib.Prj.Opts",
134 Table_Component_Type => String_Access,
135 Table_Index_Type => Natural,
136 Table_Low_Bound => 1,
137 Table_Initial => 5,
138 Table_Increment => 100);
139
140 -- All the ALI file in the library
141
142 package Library_ALIs is new GNAT.HTable.Simple_HTable
143 (Header_Num => Header_Num,
144 Element => Boolean,
145 No_Element => False,
146 Key => File_Name_Type,
147 Hash => Hash,
148 Equal => "=");
149
150 -- The ALI files in the interface sets
151
152 package Interface_ALIs is new GNAT.HTable.Simple_HTable
153 (Header_Num => Header_Num,
154 Element => Boolean,
155 No_Element => False,
156 Key => File_Name_Type,
157 Hash => Hash,
158 Equal => "=");
159
160 -- The ALI files that have been processed to check if the corresponding
161 -- library unit is in the interface set.
162
163 package Processed_ALIs is new GNAT.HTable.Simple_HTable
164 (Header_Num => Header_Num,
165 Element => Boolean,
166 No_Element => False,
167 Key => File_Name_Type,
168 Hash => Hash,
169 Equal => "=");
170
171 -- The projects imported directly or indirectly
172
173 package Processed_Projects is new GNAT.HTable.Simple_HTable
174 (Header_Num => Header_Num,
175 Element => Boolean,
176 No_Element => False,
177 Key => Name_Id,
178 Hash => Hash,
179 Equal => "=");
180
181 -- The library projects imported directly or indirectly
182
183 package Library_Projs is new Table.Table (
184 Table_Component_Type => Project_Id,
185 Table_Index_Type => Integer,
186 Table_Low_Bound => 1,
187 Table_Initial => 10,
188 Table_Increment => 10,
189 Table_Name => "Make.Library_Projs");
190
191 type Build_Mode_State is (None, Static, Dynamic, Relocatable);
192
193 procedure Add_Argument (S : String);
194 -- Add one argument to Arguments array, if array is full, double its size
195
196 function ALI_File_Name (Source : String) return String;
197 -- Return the ALI file name corresponding to a source
198
199 procedure Check (Filename : String);
200 -- Check if filename is a regular file. Fail if it is not
201
202 procedure Check_Context;
203 -- Check each object files in table Object_Files
204 -- Fail if any of them is not a regular file
205
206 procedure Copy_Interface_Sources
207 (For_Project : Project_Id;
208 In_Tree : Project_Tree_Ref;
209 Interfaces : Argument_List;
210 To_Dir : Path_Name_Type);
211 -- Copy the interface sources of a SAL to directory To_Dir
212
213 procedure Display (Executable : String);
214 -- Display invocation of gnatbind and of the compiler with the arguments
215 -- in Arguments, except when Quiet_Output is True.
216
217 function Index (S, Pattern : String) return Natural;
218 -- Return the last occurrence of Pattern in S, or 0 if none
219
220 procedure Process_Binder_File (Name : String);
221 -- For Stand-Alone libraries, get the Linker Options in the binder
222 -- generated file.
223
224 procedure Reset_Tables;
225 -- Make sure that all the above tables are empty
226 -- (Objects, Ali_Files, Options).
227
228 function SALs_Use_Constructors return Boolean;
229 -- Indicate if Stand-Alone Libraries are automatically initialized using
230 -- the constructor mechanism.
231
232 ------------------
233 -- Add_Argument --
234 ------------------
235
236 procedure Add_Argument (S : String) is
237 begin
238 if Argument_Number = Arguments'Last then
239 declare
240 New_Args : constant String_List_Access :=
241 new String_List (1 .. 2 * Arguments'Last);
242
243 begin
244 -- Copy the String_Accesses and set them to null in Arguments
245 -- so that they will not be deallocated by the call to
246 -- Free (Arguments).
247
248 New_Args (Arguments'Range) := Arguments.all;
249 Arguments.all := (others => null);
250 Free (Arguments);
251 Arguments := New_Args;
252 end;
253 end if;
254
255 Argument_Number := Argument_Number + 1;
256 Arguments (Argument_Number) := new String'(S);
257 end Add_Argument;
258
259 -------------------
260 -- ALI_File_Name --
261 -------------------
262
263 function ALI_File_Name (Source : String) return String is
264 begin
265 -- If the source name has an extension, then replace it with
266 -- the ALI suffix.
267
268 for Index in reverse Source'First + 1 .. Source'Last loop
269 if Source (Index) = '.' then
270 return Source (Source'First .. Index - 1) & ALI_Suffix;
271 end if;
272 end loop;
273
274 -- If there is no dot, or if it is the first character, just add the
275 -- ALI suffix.
276
277 return Source & ALI_Suffix;
278 end ALI_File_Name;
279
280 -------------------
281 -- Build_Library --
282 -------------------
283
284 procedure Build_Library
285 (For_Project : Project_Id;
286 In_Tree : Project_Tree_Ref;
287 Gnatbind : String;
288 Gnatbind_Path : String_Access;
289 Gcc : String;
290 Gcc_Path : String_Access;
291 Bind : Boolean := True;
292 Link : Boolean := True)
293 is
294 Maximum_Size : Integer;
295 pragma Import (C, Maximum_Size, "__gnat_link_max");
296 -- Maximum number of bytes to put in an invocation of the
297 -- gnatbind.
298
299 Size : Integer;
300 -- The number of bytes for the invocation of the gnatbind
301
302 Warning_For_Library : Boolean := False;
303 -- Set to True for the first warning about a unit missing from the
304 -- interface set.
305
306 Current_Proj : Project_Id;
307
308 Libgnarl_Needed : Yes_No_Unknown := For_Project.Libgnarl_Needed;
309 -- Set to True if library needs to be linked with libgnarl
310
311 Libdecgnat_Needed : Boolean := False;
312 -- On OpenVMS, set to True if library needs to be linked with libdecgnat
313
314 Gtrasymobj_Needed : Boolean := False;
315 -- On OpenVMS, set to True if library needs to be linked with
316 -- g-trasym.obj.
317
318 Object_Directory_Path : constant String :=
319 Get_Name_String
320 (For_Project.Object_Directory.Display_Name);
321
322 Standalone : constant Boolean := For_Project.Standalone_Library;
323
324 Project_Name : constant String := Get_Name_String (For_Project.Name);
325
326 Current_Dir : constant String := Get_Current_Dir;
327
328 Lib_Filename : String_Access;
329 Lib_Dirpath : String_Access;
330 Lib_Version : String_Access := new String'("");
331
332 The_Build_Mode : Build_Mode_State := None;
333
334 Success : Boolean := False;
335
336 Library_Options : Variable_Value := Nil_Variable_Value;
337
338 Driver_Name : Name_Id := No_Name;
339
340 In_Main_Object_Directory : Boolean := True;
341
342 Foreign_Sources : Boolean;
343
344 Rpath : String_Access := null;
345 -- Allocated only if Path Option is supported
346
347 Rpath_Last : Natural := 0;
348 -- Index of last valid character of Rpath
349
350 Initial_Rpath_Length : constant := 200;
351 -- Initial size of Rpath, when first allocated
352
353 Path_Option : String_Access := Linker_Library_Path_Option;
354 -- If null, Path Option is not supported.
355 -- Not a constant so that it can be deallocated.
356
357 First_ALI : File_Name_Type := No_File;
358 -- Store the ALI file name of a source of the library (the first found)
359
360 procedure Add_ALI_For (Source : File_Name_Type);
361 -- Add the name of the ALI file corresponding to Source to the
362 -- Arguments.
363
364 procedure Add_Rpath (Path : String);
365 -- Add a path name to Rpath
366
367 function Check_Project (P : Project_Id) return Boolean;
368 -- Returns True if P is For_Project or a project extended by For_Project
369
370 procedure Check_Libs (ALI_File : String; Main_Project : Boolean);
371 -- Set Libgnarl_Needed if the ALI_File indicates that there is a need
372 -- to link with -lgnarl (this is the case when there is a dependency
373 -- on s-osinte.ads). On OpenVMS, set Libdecgnat_Needed if the ALI file
374 -- indicates that there is a need to link with -ldecgnat (this is the
375 -- case when there is a dependency on dec.ads), and set
376 -- Gtrasymobj_Needed if there is a dependency on g-trasym.ads.
377
378 procedure Process (The_ALI : File_Name_Type);
379 -- Check if the closure of a library unit which is or should be in the
380 -- interface set is also in the interface set. Issue a warning for each
381 -- missing library unit.
382
383 procedure Process_Imported_Libraries;
384 -- Add the -L and -l switches for the imported Library Project Files,
385 -- and, if Path Option is supported, the library directory path names
386 -- to Rpath.
387
388 -----------------
389 -- Add_ALI_For --
390 -----------------
391
392 procedure Add_ALI_For (Source : File_Name_Type) is
393 ALI : constant String := ALI_File_Name (Get_Name_String (Source));
394 ALI_Id : File_Name_Type;
395
396 begin
397 if Bind then
398 Add_Argument (ALI);
399 end if;
400
401 Name_Len := 0;
402 Add_Str_To_Name_Buffer (S => ALI);
403 ALI_Id := Name_Find;
404
405 -- Add the ALI file name to the library ALIs
406
407 if Bind then
408 Library_ALIs.Set (ALI_Id, True);
409 end if;
410
411 -- Set First_ALI, if not already done
412
413 if First_ALI = No_File then
414 First_ALI := ALI_Id;
415 end if;
416 end Add_ALI_For;
417
418 ---------------
419 -- Add_Rpath --
420 ---------------
421
422 procedure Add_Rpath (Path : String) is
423
424 procedure Double;
425 -- Double Rpath size
426
427 ------------
428 -- Double --
429 ------------
430
431 procedure Double is
432 New_Rpath : constant String_Access :=
433 new String (1 .. 2 * Rpath'Length);
434 begin
435 New_Rpath (1 .. Rpath_Last) := Rpath (1 .. Rpath_Last);
436 Free (Rpath);
437 Rpath := New_Rpath;
438 end Double;
439
440 -- Start of processing for Add_Rpath
441
442 begin
443 -- If first path, allocate initial Rpath
444
445 if Rpath = null then
446 Rpath := new String (1 .. Initial_Rpath_Length);
447 Rpath_Last := 0;
448
449 else
450 -- Otherwise, add a path separator between two path names
451
452 if Rpath_Last = Rpath'Last then
453 Double;
454 end if;
455
456 Rpath_Last := Rpath_Last + 1;
457 Rpath (Rpath_Last) := Path_Separator;
458 end if;
459
460 -- Increase Rpath size until it is large enough
461
462 while Rpath_Last + Path'Length > Rpath'Last loop
463 Double;
464 end loop;
465
466 -- Add the path name
467
468 Rpath (Rpath_Last + 1 .. Rpath_Last + Path'Length) := Path;
469 Rpath_Last := Rpath_Last + Path'Length;
470 end Add_Rpath;
471
472 -------------------
473 -- Check_Project --
474 -------------------
475
476 function Check_Project (P : Project_Id) return Boolean is
477 begin
478 if P = For_Project then
479 return True;
480
481 elsif P /= No_Project then
482 declare
483 Proj : Project_Id;
484
485 begin
486 Proj := For_Project;
487 while Proj.Extends /= No_Project loop
488 if P = Proj.Extends then
489 return True;
490 end if;
491
492 Proj := Proj.Extends;
493 end loop;
494 end;
495 end if;
496
497 return False;
498 end Check_Project;
499
500 ----------------
501 -- Check_Libs --
502 ----------------
503
504 procedure Check_Libs (ALI_File : String; Main_Project : Boolean) is
505 Lib_File : File_Name_Type;
506 Text : Text_Buffer_Ptr;
507 Id : ALI.ALI_Id;
508
509 begin
510 if Libgnarl_Needed /= Yes
511 or else
512 (Main_Project
513 and then OpenVMS_On_Target
514 and then ((not Libdecgnat_Needed) or (not Gtrasymobj_Needed)))
515 then
516 -- Scan the ALI file
517
518 Name_Len := ALI_File'Length;
519 Name_Buffer (1 .. Name_Len) := ALI_File;
520 Lib_File := Name_Find;
521 Text := Read_Library_Info (Lib_File, True);
522
523 Id := ALI.Scan_ALI
524 (F => Lib_File,
525 T => Text,
526 Ignore_ED => False,
527 Err => True,
528 Read_Lines => "D");
529 Free (Text);
530
531 -- Look for s-osinte.ads in the dependencies
532
533 for Index in ALI.ALIs.Table (Id).First_Sdep ..
534 ALI.ALIs.Table (Id).Last_Sdep
535 loop
536 if ALI.Sdep.Table (Index).Sfile = S_Osinte_Ads then
537 Libgnarl_Needed := Yes;
538
539 if Main_Project then
540 For_Project.Libgnarl_Needed := Yes;
541 else
542 exit;
543 end if;
544
545 elsif OpenVMS_On_Target then
546 if ALI.Sdep.Table (Index).Sfile = S_Dec_Ads then
547 Libdecgnat_Needed := True;
548
549 elsif ALI.Sdep.Table (Index).Sfile = G_Trasym_Ads then
550 Gtrasymobj_Needed := True;
551 end if;
552 end if;
553 end loop;
554 end if;
555 end Check_Libs;
556
557 -------------
558 -- Process --
559 -------------
560
561 procedure Process (The_ALI : File_Name_Type) is
562 Text : Text_Buffer_Ptr;
563 Idread : ALI_Id;
564 First_Unit : ALI.Unit_Id;
565 Last_Unit : ALI.Unit_Id;
566 Unit_Data : Unit_Record;
567 Afile : File_Name_Type;
568
569 begin
570 -- Nothing to do if the ALI file has already been processed.
571 -- This happens if an interface imports another interface.
572
573 if not Processed_ALIs.Get (The_ALI) then
574 Processed_ALIs.Set (The_ALI, True);
575 Text := Read_Library_Info (The_ALI);
576
577 if Text /= null then
578 Idread :=
579 Scan_ALI
580 (F => The_ALI,
581 T => Text,
582 Ignore_ED => False,
583 Err => True);
584 Free (Text);
585
586 if Idread /= No_ALI_Id then
587 First_Unit := ALI.ALIs.Table (Idread).First_Unit;
588 Last_Unit := ALI.ALIs.Table (Idread).Last_Unit;
589
590 -- Process both unit (spec and body) if the body is needed
591 -- by the spec (inline or generic). Otherwise, just process
592 -- the spec.
593
594 if First_Unit /= Last_Unit and then
595 not ALI.Units.Table (Last_Unit).Body_Needed_For_SAL
596 then
597 First_Unit := Last_Unit;
598 end if;
599
600 for Unit in First_Unit .. Last_Unit loop
601 Unit_Data := ALI.Units.Table (Unit);
602
603 -- Check if each withed unit which is in the library is
604 -- also in the interface set, if it has not yet been
605 -- processed.
606
607 for W in Unit_Data.First_With .. Unit_Data.Last_With loop
608 Afile := Withs.Table (W).Afile;
609
610 if Afile /= No_File and then Library_ALIs.Get (Afile)
611 and then not Processed_ALIs.Get (Afile)
612 then
613 if not Interface_ALIs.Get (Afile) then
614 if not Warning_For_Library then
615 Write_Str ("Warning: In library project """);
616 Get_Name_String (Current_Proj.Name);
617 To_Mixed (Name_Buffer (1 .. Name_Len));
618 Write_Str (Name_Buffer (1 .. Name_Len));
619 Write_Line ("""");
620 Warning_For_Library := True;
621 end if;
622
623 Write_Str (" Unit """);
624 Get_Name_String (Withs.Table (W).Uname);
625 To_Mixed (Name_Buffer (1 .. Name_Len - 2));
626 Write_Str (Name_Buffer (1 .. Name_Len - 2));
627 Write_Line (""" is not in the interface set");
628 Write_Str (" but it is needed by ");
629
630 case Unit_Data.Utype is
631 when Is_Spec =>
632 Write_Str ("the spec of ");
633
634 when Is_Body =>
635 Write_Str ("the body of ");
636
637 when others =>
638 null;
639 end case;
640
641 Write_Str ("""");
642 Get_Name_String (Unit_Data.Uname);
643 To_Mixed (Name_Buffer (1 .. Name_Len - 2));
644 Write_Str (Name_Buffer (1 .. Name_Len - 2));
645 Write_Line ("""");
646 end if;
647
648 -- Now, process this unit
649
650 Process (Afile);
651 end if;
652 end loop;
653 end loop;
654 end if;
655 end if;
656 end if;
657 end Process;
658
659 --------------------------------
660 -- Process_Imported_Libraries --
661 --------------------------------
662
663 procedure Process_Imported_Libraries is
664 Current : Project_Id;
665
666 procedure Process_Project (Project : Project_Id);
667 -- Process Project and its imported projects recursively.
668 -- Add any library projects to table Library_Projs.
669
670 ---------------------
671 -- Process_Project --
672 ---------------------
673
674 procedure Process_Project (Project : Project_Id) is
675 Imported : Project_List;
676
677 begin
678 -- Nothing to do if process has already been processed
679
680 if not Processed_Projects.Get (Project.Name) then
681 Processed_Projects.Set (Project.Name, True);
682
683 -- Call Process_Project recursively for any imported project.
684 -- We first process the imported projects to guarantee that
685 -- we have a proper reverse order for the libraries.
686
687 Imported := Project.Imported_Projects;
688 while Imported /= null loop
689 if Imported.Project /= No_Project then
690 Process_Project (Imported.Project);
691 end if;
692
693 Imported := Imported.Next;
694 end loop;
695
696 -- If it is a library project, add it to Library_Projs
697
698 if Project /= For_Project and then Project.Library then
699 Library_Projs.Increment_Last;
700 Library_Projs.Table (Library_Projs.Last) := Project;
701
702 -- Check if because of this library we need to use libgnarl
703
704 if Libgnarl_Needed = Unknown then
705 if Project.Libgnarl_Needed = Unknown
706 and then Project.Object_Directory /= No_Path_Information
707 then
708 -- Check if libgnarl is needed for this library
709
710 declare
711 Object_Dir_Path : constant String :=
712 Get_Name_String
713 (Project.Object_Directory.
714 Display_Name);
715 Object_Dir : Dir_Type;
716 Filename : String (1 .. 255);
717 Last : Natural;
718
719 begin
720 Open (Object_Dir, Object_Dir_Path);
721
722 -- For all entries in the object directory
723
724 loop
725 Read (Object_Dir, Filename, Last);
726 exit when Last = 0;
727
728 -- Check if it is an object file
729
730 if Is_Obj (Filename (1 .. Last)) then
731 declare
732 Object_Path : constant String :=
733 Normalize_Pathname
734 (Object_Dir_Path &
735 Directory_Separator &
736 Filename (1 .. Last));
737 ALI_File : constant String :=
738 Ext_To
739 (Object_Path, "ali");
740
741 begin
742 if Is_Regular_File (ALI_File) then
743
744 -- Find out if for this ALI file,
745 -- libgnarl is necessary.
746
747 Check_Libs
748 (ALI_File, Main_Project => False);
749
750 if Libgnarl_Needed = Yes then
751 Project.Libgnarl_Needed := Yes;
752 For_Project.Libgnarl_Needed := Yes;
753 exit;
754 end if;
755 end if;
756 end;
757 end if;
758 end loop;
759
760 Close (Object_Dir);
761 end;
762 end if;
763
764 if Project.Libgnarl_Needed = Yes then
765 Libgnarl_Needed := Yes;
766 For_Project.Libgnarl_Needed := Yes;
767 end if;
768 end if;
769 end if;
770 end if;
771 end Process_Project;
772
773 -- Start of processing for Process_Imported_Libraries
774
775 begin
776 -- Build list of library projects imported directly or indirectly,
777 -- in the reverse order.
778
779 Process_Project (For_Project);
780
781 -- Add the -L and -l switches and, if the Rpath option is supported,
782 -- add the directory to the Rpath. As the library projects are in the
783 -- wrong order, process from the last to the first.
784
785 for Index in reverse 1 .. Library_Projs.Last loop
786 Current := Library_Projs.Table (Index);
787
788 Get_Name_String (Current.Library_Dir.Display_Name);
789 Opts.Increment_Last;
790 Opts.Table (Opts.Last) :=
791 new String'("-L" & Name_Buffer (1 .. Name_Len));
792
793 if Path_Option /= null then
794 Add_Rpath (Name_Buffer (1 .. Name_Len));
795 end if;
796
797 Opts.Increment_Last;
798 Opts.Table (Opts.Last) :=
799 new String'("-l" & Get_Name_String (Current.Library_Name));
800 end loop;
801 end Process_Imported_Libraries;
802
803 -- Start of processing for Build_Library
804
805 begin
806 Reset_Tables;
807
808 -- Fail if project is not a library project
809
810 if not For_Project.Library then
811 Com.Fail ("project """ & Project_Name & """ has no library");
812 end if;
813
814 -- Do not attempt to build the library if it is externally built
815
816 if For_Project.Externally_Built then
817 return;
818 end if;
819
820 -- If this is the first time Build_Library is called, get the Name_Id
821 -- of "s-osinte.ads".
822
823 if S_Osinte_Ads = No_File then
824 Name_Len := 0;
825 Add_Str_To_Name_Buffer ("s-osinte.ads");
826 S_Osinte_Ads := Name_Find;
827 end if;
828
829 if S_Dec_Ads = No_File then
830 Name_Len := 0;
831 Add_Str_To_Name_Buffer ("dec.ads");
832 S_Dec_Ads := Name_Find;
833 end if;
834
835 if G_Trasym_Ads = No_File then
836 Name_Len := 0;
837 Add_Str_To_Name_Buffer ("g-trasym.ads");
838 G_Trasym_Ads := Name_Find;
839 end if;
840
841 -- We work in the object directory
842
843 Change_Dir (Object_Directory_Path);
844
845 if Standalone then
846
847 -- Call gnatbind only if Bind is True
848
849 if Bind then
850 if Gnatbind_Path = null then
851 Com.Fail ("unable to locate " & Gnatbind);
852 end if;
853
854 if Gcc_Path = null then
855 Com.Fail ("unable to locate " & Gcc);
856 end if;
857
858 -- Allocate Arguments, if it is the first time we see a standalone
859 -- library.
860
861 if Arguments = No_Argument then
862 Arguments := new String_List (1 .. Initial_Argument_Max);
863 end if;
864
865 -- Add "-n -o b~<lib>.adb (b__<lib>.adb on VMS) -L<lib>"
866
867 Argument_Number := 2;
868 Arguments (1) := No_Main;
869 Arguments (2) := Output_Switch;
870
871 if OpenVMS_On_Target then
872 B_Start := new String'("b__");
873 end if;
874
875 Add_Argument
876 (B_Start.all
877 & Get_Name_String (For_Project.Library_Name) & ".adb");
878 Add_Argument ("-L" & Get_Name_String (For_Project.Library_Name));
879
880 if For_Project.Lib_Auto_Init and then SALs_Use_Constructors then
881 Add_Argument (Auto_Initialize);
882 end if;
883
884 -- Check if Binder'Default_Switches ("Ada") is defined. If it is,
885 -- add these switches to call gnatbind.
886
887 declare
888 Binder_Package : constant Package_Id :=
889 Value_Of
890 (Name => Name_Binder,
891 In_Packages => For_Project.Decl.Packages,
892 In_Tree => In_Tree);
893
894 begin
895 if Binder_Package /= No_Package then
896 declare
897 Defaults : constant Array_Element_Id :=
898 Value_Of
899 (Name => Name_Default_Switches,
900 In_Arrays =>
901 In_Tree.Packages.Table
902 (Binder_Package).Decl.Arrays,
903 In_Tree => In_Tree);
904 Switches : Variable_Value := Nil_Variable_Value;
905
906 Switch : String_List_Id := Nil_String;
907
908 begin
909 if Defaults /= No_Array_Element then
910 Switches :=
911 Value_Of
912 (Index => Name_Ada,
913 Src_Index => 0,
914 In_Array => Defaults,
915 In_Tree => In_Tree);
916
917 if not Switches.Default then
918 Switch := Switches.Values;
919
920 while Switch /= Nil_String loop
921 Add_Argument
922 (Get_Name_String
923 (In_Tree.String_Elements.Table
924 (Switch).Value));
925 Switch := In_Tree.String_Elements.
926 Table (Switch).Next;
927 end loop;
928 end if;
929 end if;
930 end;
931 end if;
932 end;
933 end if;
934
935 -- Get all the ALI files of the project file. We do that even if
936 -- Bind is False, so that First_ALI is set.
937
938 declare
939 Unit : Unit_Index;
940
941 begin
942 Library_ALIs.Reset;
943 Interface_ALIs.Reset;
944 Processed_ALIs.Reset;
945
946 Unit := Units_Htable.Get_First (In_Tree.Units_HT);
947 while Unit /= No_Unit_Index loop
948 if Unit.File_Names (Impl) /= null
949 and then not Unit.File_Names (Impl).Locally_Removed
950 then
951 if Check_Project (Unit.File_Names (Impl).Project) then
952 if Unit.File_Names (Spec) = null then
953 declare
954 Src_Ind : Source_File_Index;
955
956 begin
957 Src_Ind := Sinput.P.Load_Project_File
958 (Get_Name_String
959 (Unit.File_Names (Impl).Path.Name));
960
961 -- Add the ALI file only if it is not a subunit
962
963 if not
964 Sinput.P.Source_File_Is_Subunit (Src_Ind)
965 then
966 Add_ALI_For (Unit.File_Names (Impl).File);
967 exit when not Bind;
968 end if;
969 end;
970
971 else
972 Add_ALI_For (Unit.File_Names (Impl).File);
973 exit when not Bind;
974 end if;
975 end if;
976
977 elsif Unit.File_Names (Spec) /= null
978 and then not Unit.File_Names (Spec).Locally_Removed
979 and then Check_Project (Unit.File_Names (Spec).Project)
980 then
981 Add_ALI_For (Unit.File_Names (Spec).File);
982 exit when not Bind;
983 end if;
984
985 Unit := Units_Htable.Get_Next (In_Tree.Units_HT);
986 end loop;
987 end;
988
989 -- Continue setup and call gnatbind if Bind is True
990
991 if Bind then
992
993 -- Get an eventual --RTS from the ALI file
994
995 if First_ALI /= No_File then
996 declare
997 T : Text_Buffer_Ptr;
998 A : ALI_Id;
999
1000 begin
1001 -- Load the ALI file
1002
1003 T := Read_Library_Info (First_ALI, True);
1004
1005 -- Read it
1006
1007 A := Scan_ALI
1008 (First_ALI, T, Ignore_ED => False, Err => False);
1009
1010 if A /= No_ALI_Id then
1011 for Index in
1012 ALI.Units.Table
1013 (ALI.ALIs.Table (A).First_Unit).First_Arg ..
1014 ALI.Units.Table
1015 (ALI.ALIs.Table (A).First_Unit).Last_Arg
1016 loop
1017 -- If --RTS found, add switch to call gnatbind
1018
1019 declare
1020 Arg : String_Ptr renames Args.Table (Index);
1021 begin
1022 if Arg'Length >= 6 and then
1023 Arg (Arg'First + 2 .. Arg'First + 5) = "RTS="
1024 then
1025 Add_Argument (Arg.all);
1026 exit;
1027 end if;
1028 end;
1029 end loop;
1030 end if;
1031 end;
1032 end if;
1033
1034 -- Set the paths
1035
1036 Set_Ada_Paths
1037 (Project => For_Project,
1038 In_Tree => In_Tree,
1039 Including_Libraries => True);
1040
1041 -- Display the gnatbind command, if not in quiet output
1042
1043 Display (Gnatbind);
1044
1045 Size := 0;
1046 for J in 1 .. Argument_Number loop
1047 Size := Size + Arguments (J)'Length + 1;
1048 end loop;
1049
1050 -- Invoke gnatbind with the arguments if the size is not too large
1051
1052 if Size <= Maximum_Size then
1053 Spawn
1054 (Gnatbind_Path.all,
1055 Arguments (1 .. Argument_Number),
1056 Success);
1057
1058 else
1059 -- Otherwise create a temporary response file
1060
1061 declare
1062 FD : File_Descriptor;
1063 Path : Path_Name_Type;
1064 Args : Argument_List (1 .. 1);
1065 EOL : constant String (1 .. 1) := (1 => ASCII.LF);
1066 Status : Integer;
1067 Succ : Boolean;
1068 Quotes_Needed : Boolean;
1069 Last_Char : Natural;
1070 Ch : Character;
1071
1072 begin
1073 Tempdir.Create_Temp_File (FD, Path);
1074 Args (1) := new String'("@" & Get_Name_String (Path));
1075
1076 for J in 1 .. Argument_Number loop
1077
1078 -- Check if the argument should be quoted
1079
1080 Quotes_Needed := False;
1081 Last_Char := Arguments (J)'Length;
1082
1083 for K in Arguments (J)'Range loop
1084 Ch := Arguments (J) (K);
1085
1086 if Ch = ' ' or else Ch = ASCII.HT or else Ch = '"' then
1087 Quotes_Needed := True;
1088 exit;
1089 end if;
1090 end loop;
1091
1092 if Quotes_Needed then
1093
1094 -- Quote the argument, doubling '"'
1095
1096 declare
1097 Arg : String (1 .. Arguments (J)'Length * 2 + 2);
1098
1099 begin
1100 Arg (1) := '"';
1101 Last_Char := 1;
1102
1103 for K in Arguments (J)'Range loop
1104 Ch := Arguments (J) (K);
1105 Last_Char := Last_Char + 1;
1106 Arg (Last_Char) := Ch;
1107
1108 if Ch = '"' then
1109 Last_Char := Last_Char + 1;
1110 Arg (Last_Char) := '"';
1111 end if;
1112 end loop;
1113
1114 Last_Char := Last_Char + 1;
1115 Arg (Last_Char) := '"';
1116
1117 Status := Write (FD, Arg'Address, Last_Char);
1118 end;
1119
1120 else
1121 Status := Write
1122 (FD,
1123 Arguments (J) (Arguments (J)'First)'Address,
1124 Last_Char);
1125 end if;
1126
1127 if Status /= Last_Char then
1128 Fail ("disk full");
1129 end if;
1130
1131 Status := Write (FD, EOL (1)'Address, 1);
1132
1133 if Status /= 1 then
1134 Fail ("disk full");
1135 end if;
1136 end loop;
1137
1138 Close (FD);
1139
1140 -- And invoke gnatbind with this response file
1141
1142 Spawn (Gnatbind_Path.all, Args, Success);
1143
1144 Delete_File (Get_Name_String (Path), Succ);
1145
1146 if not Succ then
1147 null;
1148 end if;
1149 end;
1150 end if;
1151
1152 if not Success then
1153 Com.Fail ("could not bind standalone library "
1154 & Get_Name_String (For_Project.Library_Name));
1155 end if;
1156 end if;
1157
1158 -- Compile the binder generated file only if Link is true
1159
1160 if Link then
1161
1162 -- Set the paths
1163
1164 Set_Ada_Paths
1165 (Project => For_Project,
1166 In_Tree => In_Tree,
1167 Including_Libraries => True);
1168
1169 -- Invoke <gcc> -c b__<lib>.adb
1170
1171 -- Allocate Arguments, if it is the first time we see a standalone
1172 -- library.
1173
1174 if Arguments = No_Argument then
1175 Arguments := new String_List (1 .. Initial_Argument_Max);
1176 end if;
1177
1178 Argument_Number := 1;
1179 Arguments (1) := Compile_Switch;
1180
1181 if OpenVMS_On_Target then
1182 B_Start := new String'("b__");
1183 end if;
1184
1185 Add_Argument
1186 (B_Start.all
1187 & Get_Name_String (For_Project.Library_Name) & ".adb");
1188
1189 -- If necessary, add the PIC option
1190
1191 if PIC_Option /= "" then
1192 Add_Argument (PIC_Option);
1193 end if;
1194
1195 -- Get the back-end switches and --RTS from the ALI file
1196
1197 if First_ALI /= No_File then
1198 declare
1199 T : Text_Buffer_Ptr;
1200 A : ALI_Id;
1201
1202 begin
1203 -- Load the ALI file
1204
1205 T := Read_Library_Info (First_ALI, True);
1206
1207 -- Read it
1208
1209 A :=
1210 Scan_ALI (First_ALI, T, Ignore_ED => False, Err => False);
1211
1212 if A /= No_ALI_Id then
1213 for Index in
1214 ALI.Units.Table
1215 (ALI.ALIs.Table (A).First_Unit).First_Arg ..
1216 ALI.Units.Table
1217 (ALI.ALIs.Table (A).First_Unit).Last_Arg
1218 loop
1219 -- Do not compile with the front end switches except
1220 -- for --RTS.
1221
1222 declare
1223 Arg : String_Ptr renames Args.Table (Index);
1224 begin
1225 if not Is_Front_End_Switch (Arg.all)
1226 or else
1227 Arg (Arg'First + 2 .. Arg'First + 5) = "RTS="
1228 then
1229 Add_Argument (Arg.all);
1230 end if;
1231 end;
1232 end loop;
1233 end if;
1234 end;
1235 end if;
1236
1237 -- Now that all the arguments are set, compile the binder
1238 -- generated file.
1239
1240 Display (Gcc);
1241 Spawn
1242 (Gcc_Path.all, Arguments (1 .. Argument_Number), Success);
1243
1244 if not Success then
1245 Com.Fail
1246 ("could not compile binder generated file for library "
1247 & Get_Name_String (For_Project.Library_Name));
1248 end if;
1249
1250 -- Process binder generated file for pragmas Linker_Options
1251
1252 Process_Binder_File (Arguments (2).all & ASCII.NUL);
1253 end if;
1254 end if;
1255
1256 -- Build the library only if Link is True
1257
1258 if Link then
1259
1260 -- If attributes Library_GCC or Linker'Driver were specified, get the
1261 -- driver name.
1262
1263 if For_Project.Config.Shared_Lib_Driver /= No_File then
1264 Driver_Name := Name_Id (For_Project.Config.Shared_Lib_Driver);
1265 end if;
1266
1267 -- If attribute Library_Options was specified, add these additional
1268 -- options.
1269
1270 Library_Options := Value_Of
1271 (Name_Library_Options, For_Project.Decl.Attributes, In_Tree);
1272
1273 if not Library_Options.Default then
1274 declare
1275 Current : String_List_Id;
1276 Element : String_Element;
1277
1278 begin
1279 Current := Library_Options.Values;
1280 while Current /= Nil_String loop
1281 Element := In_Tree.String_Elements.Table (Current);
1282 Get_Name_String (Element.Value);
1283
1284 if Name_Len /= 0 then
1285 Opts.Increment_Last;
1286 Opts.Table (Opts.Last) :=
1287 new String'(Name_Buffer (1 .. Name_Len));
1288 end if;
1289
1290 Current := Element.Next;
1291 end loop;
1292 end;
1293 end if;
1294
1295 Lib_Dirpath :=
1296 new String'(Get_Name_String (For_Project.Library_Dir.Display_Name));
1297 Lib_Filename := new String'
1298 (Get_Name_String (For_Project.Library_Name));
1299
1300 case For_Project.Library_Kind is
1301 when Static =>
1302 The_Build_Mode := Static;
1303
1304 when Dynamic =>
1305 The_Build_Mode := Dynamic;
1306
1307 when Relocatable =>
1308 The_Build_Mode := Relocatable;
1309
1310 if PIC_Option /= "" then
1311 Opts.Increment_Last;
1312 Opts.Table (Opts.Last) := new String'(PIC_Option);
1313 end if;
1314 end case;
1315
1316 -- Get the library version, if any
1317
1318 if For_Project.Lib_Internal_Name /= No_Name then
1319 Lib_Version :=
1320 new String'(Get_Name_String (For_Project.Lib_Internal_Name));
1321 end if;
1322
1323 -- Add the objects found in the object directory and the object
1324 -- directories of the extended files, if any, except for generated
1325 -- object files (b~.. or B__..) from extended projects.
1326 -- When there are one or more extended files, only add an object file
1327 -- if no object file with the same name have already been added.
1328
1329 In_Main_Object_Directory := True;
1330
1331 -- For gnatmake, when the project specifies more than just Ada as a
1332 -- language (even if course we could not find any source file for
1333 -- the other languages), we will take all object files found in the
1334 -- object directories. Since we know the project supports at least
1335 -- Ada, we just have to test whether it has at least two languages,
1336 -- and not care about the sources.
1337
1338 Foreign_Sources := For_Project.Languages.Next /= null;
1339 Current_Proj := For_Project;
1340 loop
1341 if Current_Proj.Object_Directory /= No_Path_Information then
1342
1343 -- The following code gets far too indented, I suggest some
1344 -- procedural abstraction here. How about making this declare
1345 -- block a named procedure???
1346
1347 declare
1348 Object_Dir_Path : constant String :=
1349 Get_Name_String
1350 (Current_Proj.Object_Directory
1351 .Display_Name);
1352
1353 Object_Dir : Dir_Type;
1354 Filename : String (1 .. 255);
1355 Last : Natural;
1356 Id : Name_Id;
1357
1358 begin
1359 Open (Dir => Object_Dir, Dir_Name => Object_Dir_Path);
1360
1361 -- For all entries in the object directory
1362
1363 loop
1364 Read (Object_Dir, Filename, Last);
1365
1366 exit when Last = 0;
1367
1368 -- Check if it is an object file
1369
1370 if Is_Obj (Filename (1 .. Last)) then
1371 declare
1372 Object_Path : constant String :=
1373 Normalize_Pathname
1374 (Object_Dir_Path
1375 & Directory_Separator
1376 & Filename (1 .. Last));
1377
1378 C_Object_Path : String := Object_Path;
1379 C_Filename : String := Filename (1 .. Last);
1380
1381 begin
1382 Canonical_Case_File_Name (C_Object_Path);
1383 Canonical_Case_File_Name (C_Filename);
1384
1385 -- If in the object directory of an extended
1386 -- project, do not consider generated object files.
1387
1388 if In_Main_Object_Directory
1389 or else Last < 5
1390 or else
1391 C_Filename (1 .. B_Start'Length) /= B_Start.all
1392 then
1393 Name_Len := Last;
1394 Name_Buffer (1 .. Name_Len) :=
1395 C_Filename (1 .. Last);
1396 Id := Name_Find;
1397
1398 if not Objects_Htable.Get (Id) then
1399 declare
1400 ALI_File : constant String :=
1401 Ext_To
1402 (C_Filename
1403 (1 .. Last), "ali");
1404
1405 ALI_Path : constant String :=
1406 Ext_To (C_Object_Path, "ali");
1407
1408 Add_It : Boolean;
1409 Fname : File_Name_Type;
1410 Proj : Project_Id;
1411 Index : Unit_Index;
1412
1413 begin
1414 -- The following assignment could use
1415 -- a comment ???
1416
1417 Add_It :=
1418 Foreign_Sources
1419 or else
1420 (Last >= 5
1421 and then
1422 C_Filename (1 .. B_Start'Length)
1423 = B_Start.all);
1424
1425 if Is_Regular_File (ALI_Path) then
1426
1427 -- If there is an ALI file, check if
1428 -- the object file should be added to
1429 -- the library. If there are foreign
1430 -- sources we put all object files in
1431 -- the library.
1432
1433 if not Add_It then
1434 Index :=
1435 Units_Htable.Get_First
1436 (In_Tree.Units_HT);
1437 while Index /= null loop
1438 if Index.File_Names (Impl) /=
1439 null
1440 then
1441 Proj :=
1442 Index.File_Names (Impl)
1443 .Project;
1444 Fname :=
1445 Index.File_Names (Impl).File;
1446
1447 elsif Index.File_Names (Spec) /=
1448 null
1449 then
1450 Proj :=
1451 Index.File_Names (Spec)
1452 .Project;
1453 Fname :=
1454 Index.File_Names (Spec).File;
1455
1456 else
1457 Proj := No_Project;
1458 end if;
1459
1460 Add_It := Proj /= No_Project;
1461
1462 -- If the source is in the
1463 -- project or a project it
1464 -- extends, we may put it in
1465 -- the library.
1466
1467 if Add_It then
1468 Add_It := Check_Project (Proj);
1469 end if;
1470
1471 -- But we don't, if the ALI file
1472 -- does not correspond to the
1473 -- unit.
1474
1475 if Add_It then
1476 declare
1477 F : constant String :=
1478 Ext_To
1479 (Get_Name_String
1480 (Fname), "ali");
1481 begin
1482 Add_It := F = ALI_File;
1483 end;
1484 end if;
1485
1486 exit when Add_It;
1487
1488 Index :=
1489 Units_Htable.Get_Next
1490 (In_Tree.Units_HT);
1491 end loop;
1492 end if;
1493
1494 if Add_It then
1495 Objects_Htable.Set (Id, True);
1496 Objects.Append
1497 (new String'(Object_Path));
1498
1499 -- Record the ALI file
1500
1501 ALIs.Append (new String'(ALI_Path));
1502
1503 -- Find out if for this ALI file,
1504 -- libgnarl or libdecgnat or
1505 -- g-trasym.obj (on OpenVMS) is
1506 -- necessary.
1507
1508 Check_Libs (ALI_Path, True);
1509 end if;
1510
1511 elsif Foreign_Sources then
1512 Objects.Append
1513 (new String'(Object_Path));
1514 end if;
1515 end;
1516 end if;
1517 end if;
1518 end;
1519 end if;
1520 end loop;
1521
1522 Close (Dir => Object_Dir);
1523
1524 exception
1525 when Directory_Error =>
1526 Com.Fail ("cannot find object directory """
1527 & Get_Name_String
1528 (Current_Proj.Object_Directory.Display_Name)
1529 & """");
1530 end;
1531 end if;
1532
1533 exit when Current_Proj.Extends = No_Project;
1534
1535 In_Main_Object_Directory := False;
1536 Current_Proj := Current_Proj.Extends;
1537 end loop;
1538
1539 -- Add the -L and -l switches for the imported Library Project Files,
1540 -- and, if Path Option is supported, the library directory path names
1541 -- to Rpath.
1542
1543 Process_Imported_Libraries;
1544
1545 -- Link with libgnat and possibly libgnarl
1546
1547 Opts.Increment_Last;
1548 Opts.Table (Opts.Last) := new String'("-L" & Lib_Directory);
1549
1550 -- If Path Option is supported, add libgnat directory path name to
1551 -- Rpath.
1552
1553 if Path_Option /= null then
1554 declare
1555 Libdir : constant String := Lib_Directory;
1556 GCC_Index : Natural := 0;
1557
1558 begin
1559 Add_Rpath (Libdir);
1560
1561 -- For shared libraries, add to the Path Option the directory
1562 -- of the shared version of libgcc.
1563
1564 if The_Build_Mode /= Static then
1565 GCC_Index := Index (Libdir, "/lib/");
1566
1567 if GCC_Index = 0 then
1568 GCC_Index :=
1569 Index
1570 (Libdir,
1571 Directory_Separator & "lib" & Directory_Separator);
1572 end if;
1573
1574 if GCC_Index /= 0 then
1575 Add_Rpath (Libdir (Libdir'First .. GCC_Index + 3));
1576 end if;
1577 end if;
1578 end;
1579 end if;
1580
1581 if Libgnarl_Needed = Yes then
1582 Opts.Increment_Last;
1583
1584 if The_Build_Mode = Static then
1585 Opts.Table (Opts.Last) := new String'("-lgnarl");
1586 else
1587 Opts.Table (Opts.Last) := new String'(Shared_Lib ("gnarl"));
1588 end if;
1589 end if;
1590
1591 if Gtrasymobj_Needed then
1592 Opts.Increment_Last;
1593 Opts.Table (Opts.Last) :=
1594 new String'(Lib_Directory & "/g-trasym.obj");
1595 end if;
1596
1597 if Libdecgnat_Needed then
1598 Opts.Increment_Last;
1599
1600 Opts.Table (Opts.Last) :=
1601 new String'("-L" & Lib_Directory & "/../declib");
1602
1603 Opts.Increment_Last;
1604
1605 if The_Build_Mode = Static then
1606 Opts.Table (Opts.Last) := new String'("-ldecgnat");
1607 else
1608 Opts.Table (Opts.Last) := new String'(Shared_Lib ("decgnat"));
1609 end if;
1610 end if;
1611
1612 Opts.Increment_Last;
1613
1614 if The_Build_Mode = Static then
1615 Opts.Table (Opts.Last) := new String'("-lgnat");
1616 else
1617 Opts.Table (Opts.Last) := new String'(Shared_Lib ("gnat"));
1618 end if;
1619
1620 -- If Path Option is supported, add the necessary switch with the
1621 -- content of Rpath. As Rpath contains at least libgnat directory
1622 -- path name, it is guaranteed that it is not null.
1623
1624 if Path_Option /= null then
1625 Opts.Increment_Last;
1626 Opts.Table (Opts.Last) :=
1627 new String'(Path_Option.all & Rpath (1 .. Rpath_Last));
1628 Free (Path_Option);
1629 Free (Rpath);
1630 end if;
1631
1632 Object_Files :=
1633 new Argument_List'
1634 (Argument_List (Objects.Table (1 .. Objects.Last)));
1635
1636 Ali_Files :=
1637 new Argument_List'(Argument_List (ALIs.Table (1 .. ALIs.Last)));
1638
1639 Options :=
1640 new Argument_List'(Argument_List (Opts.Table (1 .. Opts.Last)));
1641
1642 -- We fail if there are no object to put in the library
1643 -- (Ada or foreign objects).
1644
1645 if Object_Files'Length = 0 then
1646 Com.Fail ("no object files for library """ &
1647 Lib_Filename.all & '"');
1648 end if;
1649
1650 if not Opt.Quiet_Output then
1651 Write_Eol;
1652 Write_Str ("building ");
1653 Write_Str (Ada.Characters.Handling.To_Lower
1654 (Build_Mode_State'Image (The_Build_Mode)));
1655 Write_Str (" library for project ");
1656 Write_Line (Project_Name);
1657
1658 -- Only output list of object files and ALI files in verbose mode
1659
1660 if Opt.Verbose_Mode then
1661 Write_Eol;
1662
1663 Write_Line ("object files:");
1664
1665 for Index in Object_Files'Range loop
1666 Write_Str (" ");
1667 Write_Line (Object_Files (Index).all);
1668 end loop;
1669
1670 Write_Eol;
1671
1672 if Ali_Files'Length = 0 then
1673 Write_Line ("NO ALI files");
1674
1675 else
1676 Write_Line ("ALI files:");
1677
1678 for Index in Ali_Files'Range loop
1679 Write_Str (" ");
1680 Write_Line (Ali_Files (Index).all);
1681 end loop;
1682 end if;
1683
1684 Write_Eol;
1685 end if;
1686 end if;
1687
1688 -- We check that all object files are regular files
1689
1690 Check_Context;
1691
1692 -- Delete the existing library file, if it exists. Fail if the
1693 -- library file is not writable, or if it is not possible to delete
1694 -- the file.
1695
1696 declare
1697 DLL_Name : aliased String :=
1698 Lib_Dirpath.all & Directory_Separator & DLL_Prefix &
1699 Lib_Filename.all & "." & DLL_Ext;
1700
1701 Archive_Name : aliased String :=
1702 Lib_Dirpath.all & Directory_Separator & "lib" &
1703 Lib_Filename.all & "." & Archive_Ext;
1704
1705 type Str_Ptr is access all String;
1706 -- This type is necessary to meet the accessibility rules of Ada.
1707 -- It is not possible to use String_Access here.
1708
1709 Full_Lib_Name : Str_Ptr;
1710 -- Designates the full library path name. Either DLL_Name or
1711 -- Archive_Name, depending on the library kind.
1712
1713 Success : Boolean;
1714 pragma Warnings (Off, Success);
1715 -- Used to call Delete_File
1716
1717 begin
1718 if The_Build_Mode = Static then
1719 Full_Lib_Name := Archive_Name'Access;
1720 else
1721 Full_Lib_Name := DLL_Name'Access;
1722 end if;
1723
1724 if Is_Regular_File (Full_Lib_Name.all) then
1725 if Is_Writable_File (Full_Lib_Name.all) then
1726 Delete_File (Full_Lib_Name.all, Success);
1727 end if;
1728
1729 if Is_Regular_File (Full_Lib_Name.all) then
1730 Com.Fail ("could not delete """ & Full_Lib_Name.all & """");
1731 end if;
1732 end if;
1733 end;
1734
1735 Argument_Number := 0;
1736
1737 -- If we have a standalone library, gather all the interface ALI.
1738 -- They are passed to Build_Dynamic_Library, where they are used by
1739 -- some platforms (VMS, for example) to decide what symbols should be
1740 -- exported. They are also flagged as Interface when we copy them to
1741 -- the library directory (by Copy_ALI_Files, below).
1742
1743 if Standalone then
1744 Current_Proj := For_Project;
1745
1746 declare
1747 Iface : String_List_Id := For_Project.Lib_Interface_ALIs;
1748 ALI : File_Name_Type;
1749
1750 begin
1751 while Iface /= Nil_String loop
1752 ALI :=
1753 File_Name_Type
1754 (In_Tree.String_Elements.Table (Iface).Value);
1755 Interface_ALIs.Set (ALI, True);
1756 Get_Name_String
1757 (In_Tree.String_Elements.Table (Iface).Value);
1758 Add_Argument (Name_Buffer (1 .. Name_Len));
1759 Iface := In_Tree.String_Elements.Table (Iface).Next;
1760 end loop;
1761
1762 Iface := For_Project.Lib_Interface_ALIs;
1763
1764 if not Opt.Quiet_Output then
1765
1766 -- Check that the interface set is complete: any unit in the
1767 -- library that is needed by an interface should also be an
1768 -- interface. If it is not the case, output a warning.
1769
1770 while Iface /= Nil_String loop
1771 ALI :=
1772 File_Name_Type
1773 (In_Tree.String_Elements.Table (Iface).Value);
1774 Process (ALI);
1775 Iface := In_Tree.String_Elements.Table (Iface).Next;
1776 end loop;
1777 end if;
1778 end;
1779 end if;
1780
1781 declare
1782 Current_Dir : constant String := Get_Current_Dir;
1783 Dir : Dir_Type;
1784
1785 Name : String (1 .. 200);
1786 Last : Natural;
1787
1788 Disregard : Boolean;
1789 pragma Warnings (Off, Disregard);
1790
1791 DLL_Name : aliased constant String :=
1792 Lib_Filename.all & "." & DLL_Ext;
1793
1794 Archive_Name : aliased constant String :=
1795 Lib_Filename.all & "." & Archive_Ext;
1796
1797 Delete : Boolean := False;
1798
1799 begin
1800 -- Clean the library directory: remove any file with the name of
1801 -- the library file and any ALI file of a source of the project.
1802
1803 begin
1804 Get_Name_String (For_Project.Library_Dir.Name);
1805 Change_Dir (Name_Buffer (1 .. Name_Len));
1806
1807 exception
1808 when others =>
1809 Com.Fail
1810 ("unable to access library directory """
1811 & Name_Buffer (1 .. Name_Len)
1812 & """");
1813 end;
1814
1815 Open (Dir, ".");
1816
1817 loop
1818 Read (Dir, Name, Last);
1819 exit when Last = 0;
1820
1821 declare
1822 Filename : constant String := Name (1 .. Last);
1823
1824 begin
1825 if Is_Regular_File (Filename) then
1826 Canonical_Case_File_Name (Name (1 .. Last));
1827 Delete := False;
1828
1829 if (The_Build_Mode = Static
1830 and then Name (1 .. Last) = Archive_Name)
1831 or else
1832 ((The_Build_Mode = Dynamic
1833 or else
1834 The_Build_Mode = Relocatable)
1835 and then Name (1 .. Last) = DLL_Name)
1836 then
1837 Delete := True;
1838
1839 elsif Last > 4
1840 and then Name (Last - 3 .. Last) = ".ali"
1841 then
1842 declare
1843 Unit : Unit_Index;
1844
1845 begin
1846 -- Compare with ALI file names of the project
1847
1848 Unit := Units_Htable.Get_First (In_Tree.Units_HT);
1849 while Unit /= No_Unit_Index loop
1850 if Unit.File_Names (Impl) /= null
1851 and then Unit.File_Names (Impl).Project /=
1852 No_Project
1853 then
1854 if Ultimate_Extending_Project_Of
1855 (Unit.File_Names (Impl).Project) =
1856 For_Project
1857 then
1858 Get_Name_String
1859 (Unit.File_Names (Impl).File);
1860 Name_Len :=
1861 Name_Len -
1862 File_Extension
1863 (Name (1 .. Name_Len))'Length;
1864
1865 if Name_Buffer (1 .. Name_Len) =
1866 Name (1 .. Last - 4)
1867 then
1868 Delete := True;
1869 exit;
1870 end if;
1871 end if;
1872
1873 elsif Unit.File_Names (Spec) /= null
1874 and then Ultimate_Extending_Project_Of
1875 (Unit.File_Names (Spec).Project) =
1876 For_Project
1877 then
1878 Get_Name_String (Unit.File_Names (Spec).File);
1879 Name_Len :=
1880 Name_Len -
1881 File_Extension (Name (1 .. Last))'Length;
1882
1883 if Name_Buffer (1 .. Name_Len) =
1884 Name (1 .. Last - 4)
1885 then
1886 Delete := True;
1887 exit;
1888 end if;
1889 end if;
1890
1891 Unit := Units_Htable.Get_Next (In_Tree.Units_HT);
1892 end loop;
1893 end;
1894 end if;
1895
1896 if Delete then
1897 Set_Writable (Filename);
1898 Delete_File (Filename, Disregard);
1899 end if;
1900 end if;
1901 end;
1902 end loop;
1903
1904 Close (Dir);
1905
1906 Change_Dir (Current_Dir);
1907 end;
1908
1909 -- Call procedure to build the library, depending on the build mode
1910
1911 case The_Build_Mode is
1912 when Dynamic | Relocatable =>
1913 Build_Dynamic_Library
1914 (Ofiles => Object_Files.all,
1915 Options => Options.all,
1916 Interfaces => Arguments (1 .. Argument_Number),
1917 Lib_Filename => Lib_Filename.all,
1918 Lib_Dir => Lib_Dirpath.all,
1919 Symbol_Data => Current_Proj.Symbol_Data,
1920 Driver_Name => Driver_Name,
1921 Lib_Version => Lib_Version.all,
1922 Auto_Init => Current_Proj.Lib_Auto_Init);
1923
1924 when Static =>
1925 MLib.Build_Library
1926 (Object_Files.all,
1927 Lib_Filename.all,
1928 Lib_Dirpath.all);
1929
1930 when None =>
1931 null;
1932 end case;
1933
1934 -- We need to copy the ALI files from the object directory to the
1935 -- library ALI directory, so that the linker find them there, and
1936 -- does not need to look in the object directory where it would also
1937 -- find the object files; and we don't want that: we want the linker
1938 -- to use the library.
1939
1940 -- Copy the ALI files and make the copies read-only. For interfaces,
1941 -- mark the copies as interfaces.
1942
1943 Copy_ALI_Files
1944 (Files => Ali_Files.all,
1945 To => For_Project.Library_ALI_Dir.Name,
1946 Interfaces => Arguments (1 .. Argument_Number));
1947
1948 -- Copy interface sources if Library_Src_Dir specified
1949
1950 if Standalone
1951 and then For_Project.Library_Src_Dir /= No_Path_Information
1952 then
1953 -- Clean the interface copy directory: remove any source that
1954 -- could be a source of the project.
1955
1956 begin
1957 Get_Name_String (For_Project.Library_Src_Dir.Name);
1958 Change_Dir (Name_Buffer (1 .. Name_Len));
1959
1960 exception
1961 when others =>
1962 Com.Fail
1963 ("unable to access library source copy directory """
1964 & Name_Buffer (1 .. Name_Len)
1965 & """");
1966 end;
1967
1968 declare
1969 Dir : Dir_Type;
1970 Delete : Boolean := False;
1971 Unit : Unit_Index;
1972
1973 Name : String (1 .. 200);
1974 Last : Natural;
1975
1976 Disregard : Boolean;
1977 pragma Warnings (Off, Disregard);
1978
1979 begin
1980 Open (Dir, ".");
1981
1982 loop
1983 Read (Dir, Name, Last);
1984 exit when Last = 0;
1985
1986 if Is_Regular_File (Name (1 .. Last)) then
1987 Canonical_Case_File_Name (Name (1 .. Last));
1988 Delete := False;
1989
1990 -- Compare with source file names of the project
1991
1992 Unit := Units_Htable.Get_First (In_Tree.Units_HT);
1993 while Unit /= No_Unit_Index loop
1994 if Unit.File_Names (Impl) /= null
1995 and then Ultimate_Extending_Project_Of
1996 (Unit.File_Names (Impl).Project) = For_Project
1997 and then
1998 Get_Name_String
1999 (Unit.File_Names (Impl).File) =
2000 Name (1 .. Last)
2001 then
2002 Delete := True;
2003 exit;
2004 end if;
2005
2006 if Unit.File_Names (Spec) /= null
2007 and then Ultimate_Extending_Project_Of
2008 (Unit.File_Names (Spec).Project) =
2009 For_Project
2010 and then
2011 Get_Name_String
2012 (Unit.File_Names (Spec).File) =
2013 Name (1 .. Last)
2014 then
2015 Delete := True;
2016 exit;
2017 end if;
2018
2019 Unit := Units_Htable.Get_Next (In_Tree.Units_HT);
2020 end loop;
2021 end if;
2022
2023 if Delete then
2024 Set_Writable (Name (1 .. Last));
2025 Delete_File (Name (1 .. Last), Disregard);
2026 end if;
2027 end loop;
2028
2029 Close (Dir);
2030 end;
2031
2032 Copy_Interface_Sources
2033 (For_Project => For_Project,
2034 In_Tree => In_Tree,
2035 Interfaces => Arguments (1 .. Argument_Number),
2036 To_Dir => For_Project.Library_Src_Dir.Display_Name);
2037 end if;
2038 end if;
2039
2040 -- Reset the current working directory to its previous value
2041
2042 Change_Dir (Current_Dir);
2043 end Build_Library;
2044
2045 -----------
2046 -- Check --
2047 -----------
2048
2049 procedure Check (Filename : String) is
2050 begin
2051 if not Is_Regular_File (Filename) then
2052 Com.Fail (Filename & " not found.");
2053 end if;
2054 end Check;
2055
2056 -------------------
2057 -- Check_Context --
2058 -------------------
2059
2060 procedure Check_Context is
2061 begin
2062 -- Check that each object file exists
2063
2064 for F in Object_Files'Range loop
2065 Check (Object_Files (F).all);
2066 end loop;
2067 end Check_Context;
2068
2069 -------------------
2070 -- Check_Library --
2071 -------------------
2072
2073 procedure Check_Library
2074 (For_Project : Project_Id; In_Tree : Project_Tree_Ref)
2075 is
2076 Lib_TS : Time_Stamp_Type;
2077 Current : constant Dir_Name_Str := Get_Current_Dir;
2078
2079 begin
2080 -- No need to build the library if there is no object directory,
2081 -- hence no object files to build the library.
2082
2083 if For_Project.Library then
2084 declare
2085 Lib_Name : constant File_Name_Type :=
2086 Library_File_Name_For (For_Project, In_Tree);
2087 begin
2088 Change_Dir (Get_Name_String (For_Project.Library_Dir.Name));
2089 Lib_TS := File_Stamp (Lib_Name);
2090 For_Project.Library_TS := Lib_TS;
2091 end;
2092
2093 if not For_Project.Externally_Built
2094 and then not For_Project.Need_To_Build_Lib
2095 and then For_Project.Object_Directory /= No_Path_Information
2096 then
2097 declare
2098 Obj_TS : Time_Stamp_Type;
2099 Object_Dir : Dir_Type;
2100
2101 begin
2102 if OpenVMS_On_Target then
2103 B_Start := new String'("b__");
2104 end if;
2105
2106 -- If the library file does not exist, then the time stamp will
2107 -- be Empty_Time_Stamp, earlier than any other time stamp.
2108
2109 Change_Dir
2110 (Get_Name_String (For_Project.Object_Directory.Name));
2111 Open (Dir => Object_Dir, Dir_Name => ".");
2112
2113 -- For all entries in the object directory
2114
2115 loop
2116 Read (Object_Dir, Name_Buffer, Name_Len);
2117 exit when Name_Len = 0;
2118
2119 -- Check if it is an object file, but ignore any binder
2120 -- generated file.
2121
2122 if Is_Obj (Name_Buffer (1 .. Name_Len))
2123 and then Name_Buffer (1 .. B_Start'Length) /= B_Start.all
2124 then
2125 -- Get the object file time stamp
2126
2127 Obj_TS := File_Stamp (File_Name_Type'(Name_Find));
2128
2129 -- If library file time stamp is earlier, set
2130 -- Need_To_Build_Lib and return. String comparison is
2131 -- used, otherwise time stamps may be too close and the
2132 -- comparison would return True, which would trigger
2133 -- an unnecessary rebuild of the library.
2134
2135 if String (Lib_TS) < String (Obj_TS) then
2136
2137 -- Library must be rebuilt
2138
2139 For_Project.Need_To_Build_Lib := True;
2140 exit;
2141 end if;
2142 end if;
2143 end loop;
2144
2145 Close (Object_Dir);
2146 end;
2147 end if;
2148
2149 Change_Dir (Current);
2150 end if;
2151 end Check_Library;
2152
2153 ----------------------------
2154 -- Copy_Interface_Sources --
2155 ----------------------------
2156
2157 procedure Copy_Interface_Sources
2158 (For_Project : Project_Id;
2159 In_Tree : Project_Tree_Ref;
2160 Interfaces : Argument_List;
2161 To_Dir : Path_Name_Type)
2162 is
2163 Current : constant Dir_Name_Str := Get_Current_Dir;
2164 -- The current directory, where to return to at the end
2165
2166 Target : constant Dir_Name_Str := Get_Name_String (To_Dir);
2167 -- The directory where to copy sources
2168
2169 Text : Text_Buffer_Ptr;
2170 The_ALI : ALI.ALI_Id;
2171 Lib_File : File_Name_Type;
2172
2173 First_Unit : ALI.Unit_Id;
2174 Second_Unit : ALI.Unit_Id;
2175
2176 Copy_Subunits : Boolean := False;
2177 -- When True, indicates that subunits, if any, need to be copied too
2178
2179 procedure Copy (File_Name : File_Name_Type);
2180 -- Copy one source of the project to the target directory
2181
2182 ----------
2183 -- Copy --
2184 ----------
2185
2186 procedure Copy (File_Name : File_Name_Type) is
2187 Success : Boolean;
2188 pragma Warnings (Off, Success);
2189
2190 Source : Standard.Prj.Source_Id;
2191 begin
2192 Source := Find_Source
2193 (In_Tree, For_Project,
2194 In_Extended_Only => True,
2195 Base_Name => File_Name);
2196
2197 if Source /= No_Source
2198 and then not Source.Locally_Removed
2199 and then Source.Replaced_By = No_Source
2200 then
2201 Copy_File
2202 (Get_Name_String (Source.Path.Name),
2203 Target,
2204 Success,
2205 Mode => Overwrite,
2206 Preserve => Preserve);
2207 end if;
2208 end Copy;
2209
2210 -- Start of processing for Copy_Interface_Sources
2211
2212 begin
2213 -- Change the working directory to the object directory
2214
2215 Change_Dir (Get_Name_String (For_Project.Object_Directory.Name));
2216
2217 for Index in Interfaces'Range loop
2218
2219 -- First, load the ALI file
2220
2221 Name_Len := 0;
2222 Add_Str_To_Name_Buffer (Interfaces (Index).all);
2223 Lib_File := Name_Find;
2224 Text := Read_Library_Info (Lib_File);
2225 The_ALI := Scan_ALI (Lib_File, Text, Ignore_ED => False, Err => True);
2226 Free (Text);
2227
2228 Second_Unit := No_Unit_Id;
2229 First_Unit := ALI.ALIs.Table (The_ALI).First_Unit;
2230 Copy_Subunits := True;
2231
2232 -- If there is both a spec and a body, check if they are both needed
2233
2234 if ALI.Units.Table (First_Unit).Utype = Is_Body then
2235 Second_Unit := ALI.ALIs.Table (The_ALI).Last_Unit;
2236
2237 -- If the body is not needed, then reset First_Unit
2238
2239 if not ALI.Units.Table (Second_Unit).Body_Needed_For_SAL then
2240 First_Unit := No_Unit_Id;
2241 Copy_Subunits := False;
2242 end if;
2243
2244 elsif ALI.Units.Table (First_Unit).Utype = Is_Spec_Only then
2245 Copy_Subunits := False;
2246 end if;
2247
2248 -- Copy the file(s) that need to be copied
2249
2250 if First_Unit /= No_Unit_Id then
2251 Copy (File_Name => ALI.Units.Table (First_Unit).Sfile);
2252 end if;
2253
2254 if Second_Unit /= No_Unit_Id then
2255 Copy (File_Name => ALI.Units.Table (Second_Unit).Sfile);
2256 end if;
2257
2258 -- Copy all the separates, if any
2259
2260 if Copy_Subunits then
2261 for Dep in ALI.ALIs.Table (The_ALI).First_Sdep ..
2262 ALI.ALIs.Table (The_ALI).Last_Sdep
2263 loop
2264 if Sdep.Table (Dep).Subunit_Name /= No_Name then
2265 Copy (File_Name => Sdep.Table (Dep).Sfile);
2266 end if;
2267 end loop;
2268 end if;
2269 end loop;
2270
2271 -- Restore the initial working directory
2272
2273 Change_Dir (Current);
2274 end Copy_Interface_Sources;
2275
2276 -------------
2277 -- Display --
2278 -------------
2279
2280 procedure Display (Executable : String) is
2281 begin
2282 if not Opt.Quiet_Output then
2283 Write_Str (Executable);
2284
2285 for Index in 1 .. Argument_Number loop
2286 Write_Char (' ');
2287 Write_Str (Arguments (Index).all);
2288
2289 if not Opt.Verbose_Mode and then Index > 4 then
2290 Write_Str (" ...");
2291 exit;
2292 end if;
2293 end loop;
2294
2295 Write_Eol;
2296 end if;
2297 end Display;
2298
2299 -----------
2300 -- Index --
2301 -----------
2302
2303 function Index (S, Pattern : String) return Natural is
2304 Len : constant Natural := Pattern'Length;
2305
2306 begin
2307 for J in reverse S'First .. S'Last - Len + 1 loop
2308 if Pattern = S (J .. J + Len - 1) then
2309 return J;
2310 end if;
2311 end loop;
2312
2313 return 0;
2314 end Index;
2315
2316 -------------------------
2317 -- Process_Binder_File --
2318 -------------------------
2319
2320 procedure Process_Binder_File (Name : String) is
2321 Fd : FILEs;
2322 -- Binder file's descriptor
2323
2324 Read_Mode : constant String := "r" & ASCII.NUL;
2325 -- For fopen
2326
2327 Status : Interfaces.C_Streams.int;
2328 pragma Unreferenced (Status);
2329 -- For fclose
2330
2331 Begin_Info : constant String := "-- BEGIN Object file/option list";
2332 End_Info : constant String := "-- END Object file/option list ";
2333
2334 Next_Line : String (1 .. 1000);
2335 -- Current line value
2336 -- Where does this odd constant 1000 come from, looks suspicious ???
2337
2338 Nlast : Integer;
2339 -- End of line slice (the slice does not contain the line terminator)
2340
2341 procedure Get_Next_Line;
2342 -- Read the next line from the binder file without the line terminator
2343
2344 -------------------
2345 -- Get_Next_Line --
2346 -------------------
2347
2348 procedure Get_Next_Line is
2349 Fchars : chars;
2350
2351 begin
2352 Fchars := fgets (Next_Line'Address, Next_Line'Length, Fd);
2353
2354 if Fchars = System.Null_Address then
2355 Fail ("Error reading binder output");
2356 end if;
2357
2358 Nlast := 1;
2359 while Nlast <= Next_Line'Last
2360 and then Next_Line (Nlast) /= ASCII.LF
2361 and then Next_Line (Nlast) /= ASCII.CR
2362 loop
2363 Nlast := Nlast + 1;
2364 end loop;
2365
2366 Nlast := Nlast - 1;
2367 end Get_Next_Line;
2368
2369 -- Start of processing for Process_Binder_File
2370
2371 begin
2372 Fd := fopen (Name'Address, Read_Mode'Address);
2373
2374 if Fd = NULL_Stream then
2375 Fail ("Failed to open binder output");
2376 end if;
2377
2378 -- Skip up to the Begin Info line
2379
2380 loop
2381 Get_Next_Line;
2382 exit when Next_Line (1 .. Nlast) = Begin_Info;
2383 end loop;
2384
2385 -- Find the first switch
2386
2387 loop
2388 Get_Next_Line;
2389
2390 exit when Next_Line (1 .. Nlast) = End_Info;
2391
2392 -- As the binder generated file is in Ada, remove the first eight
2393 -- characters " -- ".
2394
2395 Next_Line (1 .. Nlast - 8) := Next_Line (9 .. Nlast);
2396 Nlast := Nlast - 8;
2397
2398 -- Stop when the first switch is found
2399
2400 exit when Next_Line (1) = '-';
2401 end loop;
2402
2403 if Next_Line (1 .. Nlast) /= End_Info then
2404 loop
2405 -- Ignore -static and -shared, since -shared will be used
2406 -- in any case.
2407
2408 -- Ignore -lgnat, -lgnarl and -ldecgnat as they will be added
2409 -- later, because they are also needed for non Stand-Alone shared
2410 -- libraries.
2411
2412 -- Also ignore the shared libraries which are :
2413
2414 -- UNIX / Windows VMS
2415 -- -lgnat-<version> -lgnat_<version> (7 + version'length chars)
2416 -- -lgnarl-<version> -lgnarl_<version> (8 + version'length chars)
2417
2418 if Next_Line (1 .. Nlast) /= "-static" and then
2419 Next_Line (1 .. Nlast) /= "-shared" and then
2420 Next_Line (1 .. Nlast) /= "-ldecgnat" and then
2421 Next_Line (1 .. Nlast) /= "-lgnarl" and then
2422 Next_Line (1 .. Nlast) /= "-lgnat" and then
2423 Next_Line
2424 (1 .. Natural'Min (Nlast, 10 + Library_Version'Length)) /=
2425 Shared_Lib ("decgnat") and then
2426 Next_Line
2427 (1 .. Natural'Min (Nlast, 8 + Library_Version'Length)) /=
2428 Shared_Lib ("gnarl") and then
2429 Next_Line
2430 (1 .. Natural'Min (Nlast, 7 + Library_Version'Length)) /=
2431 Shared_Lib ("gnat")
2432 then
2433 if Next_Line (1) /= '-' then
2434
2435 -- This is not an option, should we add it?
2436
2437 if Add_Object_Files then
2438 Opts.Increment_Last;
2439 Opts.Table (Opts.Last) :=
2440 new String'(Next_Line (1 .. Nlast));
2441 end if;
2442
2443 else
2444 -- Add all other options
2445
2446 Opts.Increment_Last;
2447 Opts.Table (Opts.Last) :=
2448 new String'(Next_Line (1 .. Nlast));
2449 end if;
2450 end if;
2451
2452 -- Next option, if any
2453
2454 Get_Next_Line;
2455 exit when Next_Line (1 .. Nlast) = End_Info;
2456
2457 -- Remove first eight characters " -- "
2458
2459 Next_Line (1 .. Nlast - 8) := Next_Line (9 .. Nlast);
2460 Nlast := Nlast - 8;
2461 end loop;
2462 end if;
2463
2464 Status := fclose (Fd);
2465
2466 -- Is it really right to ignore any close error ???
2467
2468 end Process_Binder_File;
2469
2470 ------------------
2471 -- Reset_Tables --
2472 ------------------
2473
2474 procedure Reset_Tables is
2475 begin
2476 Objects.Init;
2477 Objects_Htable.Reset;
2478 ALIs.Init;
2479 Opts.Init;
2480 Processed_Projects.Reset;
2481 Library_Projs.Init;
2482 end Reset_Tables;
2483
2484 ---------------------------
2485 -- SALs_Use_Constructors --
2486 ---------------------------
2487
2488 function SALs_Use_Constructors return Boolean is
2489 function C_SALs_Init_Using_Constructors return Integer;
2490 pragma Import (C, C_SALs_Init_Using_Constructors,
2491 "__gnat_sals_init_using_constructors");
2492 begin
2493 return C_SALs_Init_Using_Constructors /= 0;
2494 end SALs_Use_Constructors;
2495
2496 end MLib.Prj;