1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2007, 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 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. --
21 -- GNAT was originally developed by the GNAT team at New York University. --
22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
24 ------------------------------------------------------------------------------
27 with Atree; use Atree;
28 with Casing; use Casing;
29 with Einfo; use Einfo;
30 with Errout; use Errout;
31 with Fname; use Fname;
32 with Fname.UF; use Fname.UF;
33 with Lib.Util; use Lib.Util;
34 with Lib.Xref; use Lib.Xref;
35 with Nlists; use Nlists;
36 with Gnatvsn; use Gnatvsn;
38 with Osint; use Osint;
39 with Osint.C; use Osint.C;
41 with Restrict; use Restrict;
42 with Rident; use Rident;
44 with Sinfo; use Sinfo;
45 with Sinput; use Sinput;
46 with Snames; use Snames;
47 with Stringt; use Stringt;
48 with Tbuild; use Tbuild;
49 with Uname; use Uname;
51 with System.Case_Util; use System.Case_Util;
52 with System.WCh_Con; use System.WCh_Con;
54 package body Lib.Writ is
56 -----------------------
57 -- Local Subprograms --
58 -----------------------
60 procedure Write_Unit_Name (N : Node_Id);
61 -- Used to write out the unit name for R (pragma Restriction) lines
62 -- for uses of Restriction (No_Dependence => unit-name).
64 ----------------------------------
65 -- Add_Preprocessing_Dependency --
66 ----------------------------------
68 procedure Add_Preprocessing_Dependency (S : Source_File_Index) is
71 Units.Table (Units.Last) :=
72 (Unit_File_Name => File_Name (S),
73 Unit_Name => No_Unit_Name,
74 Expected_Unit => No_Unit_Name,
77 Cunit_Entity => Empty,
79 Dynamic_Elab => False,
81 Generate_Code => False,
83 Is_Compiler_Unit => False,
84 Ident_String => Empty,
90 Error_Location => No_Location);
91 end Add_Preprocessing_Dependency;
93 ------------------------------
94 -- Ensure_System_Dependency --
95 ------------------------------
97 procedure Ensure_System_Dependency is
98 System_Uname : Unit_Name_Type;
99 -- Unit name for system spec if needed for dummy entry
101 System_Fname : File_Name_Type;
102 -- File name for system spec if needed for dummy entry
105 -- Nothing to do if we already compiled System
107 for Unum in Units.First .. Last_Unit loop
108 if Units.Table (Unum).Source_Index = System_Source_File_Index then
113 -- If no entry for system.ads in the units table, then add a entry
114 -- to the units table for system.ads, which will be referenced when
115 -- the ali file is generated. We need this because every unit depends
116 -- on system as a result of Targparm scanning the system.ads file to
117 -- determine the target dependent parameters for the compilation.
120 Name_Buffer (1 .. 6) := "system";
121 System_Uname := Name_To_Unit_Name (Name_Enter);
122 System_Fname := File_Name (System_Source_File_Index);
124 Units.Increment_Last;
125 Units.Table (Units.Last) := (
126 Unit_File_Name => System_Fname,
127 Unit_Name => System_Uname,
128 Expected_Unit => System_Uname,
129 Source_Index => System_Source_File_Index,
131 Cunit_Entity => Empty,
133 Dynamic_Elab => False,
134 Fatal_Error => False,
135 Generate_Code => False,
137 Is_Compiler_Unit => False,
138 Ident_String => Empty,
144 Error_Location => No_Location);
146 -- Parse system.ads so that the checksum is set right
147 -- Style checks are not applied.
150 Save_Mindex : constant Nat := Multiple_Unit_Index;
151 Save_Style : constant Boolean := Style_Check;
153 Multiple_Unit_Index := 0;
154 Style_Check := False;
155 Initialize_Scanner (Units.Last, System_Source_File_Index);
156 Discard_List (Par (Configuration_Pragmas => False));
157 Style_Check := Save_Style;
158 Multiple_Unit_Index := Save_Mindex;
160 end Ensure_System_Dependency;
166 procedure Write_ALI (Object : Boolean) is
172 Last_Unit : constant Unit_Number_Type := Units.Last;
173 -- Record unit number of last unit. We capture this in case we
174 -- have to add a dummy entry to the unit table for package System.
176 With_Flags : array (Units.First .. Last_Unit) of Boolean;
177 -- Array of flags to show which units are with'ed
179 Elab_Flags : array (Units.First .. Last_Unit) of Boolean;
180 -- Array of flags to show which units have pragma Elaborate set
182 Elab_All_Flags : array (Units.First .. Last_Unit) of Boolean;
183 -- Array of flags to show which units have pragma Elaborate All set
185 Elab_Des_Flags : array (Units.First .. Last_Unit) of Boolean;
186 -- Array of flags to show which units have Elaborate_Desirable set
188 Elab_All_Des_Flags : array (Units.First .. Last_Unit) of Boolean;
189 -- Array of flags to show which units have Elaborate_All_Desirable set
191 Sdep_Table : Unit_Ref_Table (1 .. Pos (Last_Unit - Units.First + 2));
192 -- Sorted table of source dependencies. One extra entry in case we
193 -- have to add a dummy entry for System.
196 -- Number of active entries in Sdep_Table
198 -----------------------
199 -- Local Subprograms --
200 -----------------------
202 procedure Collect_Withs (Cunit : Node_Id);
203 -- Collect with lines for entries in the context clause of the
204 -- given compilation unit, Cunit.
206 procedure Update_Tables_From_ALI_File;
207 -- Given an up to date ALI file (see Up_To_Date_ALI_file_Exists
208 -- function), update tables from the ALI information, including
209 -- specifically the Compilation_Switches table.
211 function Up_To_Date_ALI_File_Exists return Boolean;
212 -- If there exists an ALI file that is up to date, then this function
213 -- initializes the tables in the ALI spec to contain information on
214 -- this file (using Scan_ALI) and returns True. If no file exists,
215 -- or the file is not up to date, then False is returned.
217 procedure Write_Unit_Information (Unit_Num : Unit_Number_Type);
218 -- Write out the library information for one unit for which code is
219 -- generated (includes unit line and with lines).
221 procedure Write_With_Lines;
222 -- Write out with lines collected by calls to Collect_Withs
228 procedure Collect_Withs (Cunit : Node_Id) is
230 Unum : Unit_Number_Type;
233 Item := First (Context_Items (Cunit));
234 while Present (Item) loop
236 -- Process with clause
238 -- Ada 2005 (AI-50217): limited with_clauses do not create
241 if Nkind (Item) = N_With_Clause
242 and then not (Limited_Present (Item))
244 Unum := Get_Cunit_Unit_Number (Library_Unit (Item));
245 With_Flags (Unum) := True;
247 if Elaborate_Present (Item) then
248 Elab_Flags (Unum) := True;
251 if Elaborate_All_Present (Item) then
252 Elab_All_Flags (Unum) := True;
255 if Elaborate_All_Desirable (Item) then
256 Elab_All_Des_Flags (Unum) := True;
259 if Elaborate_Desirable (Item) then
260 Elab_Des_Flags (Unum) := True;
268 --------------------------------
269 -- Up_To_Date_ALI_File_Exists --
270 --------------------------------
272 function Up_To_Date_ALI_File_Exists return Boolean is
273 Name : File_Name_Type;
274 Text : Text_Buffer_Ptr;
276 Sind : Source_File_Index;
279 Opt.Check_Object_Consistency := True;
280 Read_Library_Info (Name, Text);
282 -- Return if we could not find an ALI file
288 -- Return if ALI file has bad format
292 if Scan_ALI (Name, Text, False, Err => True) = No_ALI_Id then
296 -- If we have an OK ALI file, check if it is up to date
297 -- Note that we assume that the ALI read has all the entries
298 -- we have in our table, plus some additional ones (that can
299 -- come from expansion).
301 Id := First_Sdep_Entry;
302 for J in 1 .. Num_Sdep loop
303 Sind := Units.Table (Sdep_Table (J)).Source_Index;
305 while Sdep.Table (Id).Sfile /= File_Name (Sind) loop
306 if Id = Sdep.Last then
313 if Sdep.Table (Id).Stamp /= Time_Stamp (Sind) then
319 end Up_To_Date_ALI_File_Exists;
321 ---------------------------------
322 -- Update_Tables_From_ALI_File --
323 ---------------------------------
325 procedure Update_Tables_From_ALI_File is
327 -- Build Compilation_Switches table
329 Compilation_Switches.Init;
331 for J in First_Arg_Entry .. Args.Last loop
332 Compilation_Switches.Increment_Last;
333 Compilation_Switches.Table (Compilation_Switches.Last) :=
336 end Update_Tables_From_ALI_File;
338 ----------------------------
339 -- Write_Unit_Information --
340 ----------------------------
342 procedure Write_Unit_Information (Unit_Num : Unit_Number_Type) is
343 Unode : constant Node_Id := Cunit (Unit_Num);
344 Ukind : constant Node_Kind := Nkind (Unit (Unode));
345 Uent : constant Entity_Id := Cunit_Entity (Unit_Num);
349 Write_Info_Initiate ('U');
350 Write_Info_Char (' ');
351 Write_Info_Name (Unit_Name (Unit_Num));
353 Write_Info_Name (Unit_File_Name (Unit_Num));
356 Write_Info_Str (Version_Get (Unit_Num));
358 -- Add BD parameter if Elaborate_Body pragma desirable
360 if Ekind (Uent) = E_Package
361 and then Elaborate_Body_Desirable (Uent)
363 Write_Info_Str (" BD");
366 -- Add BN parameter if body needed for SAL
368 if (Is_Subprogram (Uent)
369 or else Ekind (Uent) = E_Package
370 or else Is_Generic_Unit (Uent))
371 and then Body_Needed_For_SAL (Uent)
373 Write_Info_Str (" BN");
376 if Dynamic_Elab (Unit_Num) then
377 Write_Info_Str (" DE");
380 -- Set the Elaborate_Body indication if either an explicit pragma
381 -- was present, or if this is an instantiation.
383 if Has_Pragma_Elaborate_Body (Uent)
384 or else (Ukind = N_Package_Declaration
385 and then Is_Generic_Instance (Uent)
386 and then Present (Corresponding_Body (Unit (Unode))))
388 Write_Info_Str (" EB");
391 -- Now see if we should tell the binder that an elaboration entity
392 -- is present, which must be set to true during elaboration.
393 -- We generate the indication if the following condition is met:
395 -- If this is a spec ...
397 if (Is_Subprogram (Uent)
399 Ekind (Uent) = E_Package
401 Is_Generic_Unit (Uent))
403 -- and an elaboration entity was declared ...
405 and then Present (Elaboration_Entity (Uent))
407 -- and either the elaboration flag is required ...
410 (Elaboration_Entity_Required (Uent)
412 -- or this unit has elaboration code ...
414 or else not Has_No_Elaboration_Code (Unode)
416 -- or this unit has a separate body and this
417 -- body has elaboration code.
420 (Ekind (Uent) = E_Package
421 and then Present (Body_Entity (Uent))
423 not Has_No_Elaboration_Code
426 (Body_Entity (Uent))))))
428 if Convention (Uent) = Convention_CIL then
430 -- Special case for generic CIL packages which never have
433 Write_Info_Str (" NE");
436 Write_Info_Str (" EE");
440 if Has_No_Elaboration_Code (Unode) then
441 Write_Info_Str (" NE");
444 if Is_Preelaborated (Uent) then
445 Write_Info_Str (" PR");
448 if Is_Pure (Uent) then
449 Write_Info_Str (" PU");
452 if Has_RACW (Unit_Num) then
453 Write_Info_Str (" RA");
456 if Is_Remote_Call_Interface (Uent) then
457 Write_Info_Str (" RC");
460 if Is_Remote_Types (Uent) then
461 Write_Info_Str (" RT");
464 if Is_Shared_Passive (Uent) then
465 Write_Info_Str (" SP");
468 if Ukind = N_Subprogram_Declaration
469 or else Ukind = N_Subprogram_Body
471 Write_Info_Str (" SU");
473 elsif Ukind = N_Package_Declaration
475 Ukind = N_Package_Body
477 -- If this is a wrapper package for a subprogram instantiation,
478 -- the user view is the subprogram. Note that in this case the
479 -- ali file contains both the spec and body of the instance.
481 if Is_Wrapper_Package (Uent) then
482 Write_Info_Str (" SU");
484 Write_Info_Str (" PK");
487 elsif Ukind = N_Generic_Package_Declaration then
488 Write_Info_Str (" PK");
492 if Ukind in N_Generic_Declaration
494 (Present (Library_Unit (Unode))
496 Nkind (Unit (Library_Unit (Unode))) in N_Generic_Declaration)
498 Write_Info_Str (" GE");
501 if not Is_Internal_File_Name (Unit_File_Name (Unit_Num), True) then
502 case Identifier_Casing (Source_Index (Unit_Num)) is
503 when All_Lower_Case => Write_Info_Str (" IL");
504 when All_Upper_Case => Write_Info_Str (" IU");
508 case Keyword_Casing (Source_Index (Unit_Num)) is
509 when Mixed_Case => Write_Info_Str (" KM");
510 when All_Upper_Case => Write_Info_Str (" KU");
515 if Initialize_Scalars then
516 Write_Info_Str (" IS");
521 -- Generate with lines, first those that are directly with'ed
523 for J in With_Flags'Range loop
524 With_Flags (J) := False;
525 Elab_Flags (J) := False;
526 Elab_All_Flags (J) := False;
527 Elab_Des_Flags (J) := False;
528 Elab_All_Des_Flags (J) := False;
531 Collect_Withs (Unode);
533 -- For a body, we must also check for any subunits which belong to
534 -- it and which have context clauses of their own, since these
535 -- with'ed units are part of its own elaboration dependencies.
537 if Nkind (Unit (Unode)) in N_Unit_Body then
538 for S in Units.First .. Last_Unit loop
540 -- We are only interested in subunits.
541 -- For preproc. data and def. files, Cunit is Empty, so
542 -- we need to test that first.
544 if Cunit (S) /= Empty
545 and then Nkind (Unit (Cunit (S))) = N_Subunit
547 Pnode := Library_Unit (Cunit (S));
549 -- In gnatc mode, the errors in the subunits will not
550 -- have been recorded, but the analysis of the subunit
551 -- may have failed. There is no information to add to
552 -- ALI file in this case.
558 -- Find ultimate parent of the subunit
560 while Nkind (Unit (Pnode)) = N_Subunit loop
561 Pnode := Library_Unit (Pnode);
564 -- See if it belongs to current unit, and if so, include
567 if Pnode = Unode then
568 Collect_Withs (Cunit (S));
576 -- Output linker option lines
578 for J in 1 .. Linker_Option_Lines.Last loop
580 S : constant Linker_Option_Entry :=
581 Linker_Option_Lines.Table (J);
585 if S.Unit = Unit_Num then
586 Write_Info_Initiate ('L');
587 Write_Info_Str (" """);
589 for J in 1 .. String_Length (S.Option) loop
590 C := Get_Character (Get_String_Char (S.Option, J));
592 if C in Character'Val (16#20#) .. Character'Val (16#7E#)
603 Hex : constant array (0 .. 15) of Character :=
607 Write_Info_Char ('{');
608 Write_Info_Char (Hex (Character'Pos (C) / 16));
609 Write_Info_Char (Hex (Character'Pos (C) mod 16));
610 Write_Info_Char ('}');
615 Write_Info_Char ('"');
620 end Write_Unit_Information;
622 ----------------------
623 -- Write_With_Lines --
624 ----------------------
626 procedure Write_With_Lines is
627 With_Table : Unit_Ref_Table (1 .. Pos (Last_Unit - Units.First + 1));
628 Num_Withs : Int := 0;
629 Unum : Unit_Number_Type;
631 Uname : Unit_Name_Type;
632 Fname : File_Name_Type;
633 Pname : constant Unit_Name_Type :=
634 Get_Parent_Spec_Name (Unit_Name (Main_Unit));
635 Body_Fname : File_Name_Type;
638 procedure Write_With_File_Names
639 (Nam : in out File_Name_Type;
641 -- Write source file name Nam and ALI file name for unit index Idx.
642 -- Possibly change Nam to lowercase (generating a new file name).
644 --------------------------
645 -- Write_With_File_Name --
646 --------------------------
648 procedure Write_With_File_Names
649 (Nam : in out File_Name_Type;
653 if not File_Names_Case_Sensitive then
654 Get_Name_String (Nam);
655 To_Lower (Name_Buffer (1 .. Name_Len));
659 Write_Info_Name (Nam);
661 Write_Info_Name (Lib_File_Name (Nam, Idx));
662 end Write_With_File_Names;
664 -- Start of processing for Write_With_Lines
667 -- Loop to build the with table. A with on the main unit itself
668 -- is ignored (AARM 10.2(14a)). Such a with-clause can occur if
669 -- the main unit is a subprogram with no spec, and a subunit of
670 -- it unnecessarily withs the parent.
672 for J in Units.First + 1 .. Last_Unit loop
674 -- Add element to with table if it is with'ed or if it is the
675 -- parent spec of the main unit (case of main unit is a child
676 -- unit). The latter with is not needed for semantic purposes,
677 -- but is required by the binder for elaboration purposes.
678 -- For preproc. data and def. files, there is no Unit_Name,
679 -- check for that first.
681 if Unit_Name (J) /= No_Unit_Name
682 and then (With_Flags (J) or else Unit_Name (J) = Pname)
684 Num_Withs := Num_Withs + 1;
685 With_Table (Num_Withs) := J;
689 -- Sort and output the table
691 Sort (With_Table (1 .. Num_Withs));
693 for J in 1 .. Num_Withs loop
694 Unum := With_Table (J);
695 Cunit := Units.Table (Unum).Cunit;
696 Uname := Units.Table (Unum).Unit_Name;
697 Fname := Units.Table (Unum).Unit_File_Name;
699 Write_Info_Initiate ('W');
700 Write_Info_Char (' ');
701 Write_Info_Name (Uname);
703 -- Now we need to figure out the names of the files that contain
704 -- the with'ed unit. These will usually be the files for the body,
705 -- except in the case of a package that has no body. Note that we
706 -- have a specific exemption here for predefined library generics
707 -- (see comments for Generic_May_Lack_ALI). We do not generate
708 -- dependency upon the ALI file for such units. Older compilers
709 -- used to not support generating code (and ALI) for generics, and
710 -- we want to avoid having different processing (namely, different
711 -- lists of files to be compiled) for different stages of the
714 if not ((Nkind (Unit (Cunit)) in N_Generic_Declaration
716 Nkind (Unit (Cunit)) in N_Generic_Renaming_Declaration)
717 and then Generic_May_Lack_ALI (Fname))
721 if Is_Spec_Name (Uname) then
724 (Get_Body_Name (Uname),
725 Subunit => False, May_Fail => True);
729 (Get_Body_Name (Uname));
731 if Body_Fname = No_File then
732 Body_Fname := Get_File_Name (Uname, Subunit => False);
733 Body_Index := Get_Unit_Index (Uname);
737 Body_Fname := Get_File_Name (Uname, Subunit => False);
738 Body_Index := Get_Unit_Index (Uname);
741 -- A package is considered to have a body if it requires
742 -- a body or if a body is present in Ada 83 mode.
744 if Body_Required (Cunit)
745 or else (Ada_Version = Ada_83
746 and then Full_Source_Name (Body_Fname) /= No_File)
748 Write_With_File_Names (Body_Fname, Body_Index);
750 Write_With_File_Names (Fname, Munit_Index (Unum));
753 if Elab_Flags (Unum) then
754 Write_Info_Str (" E");
757 if Elab_All_Flags (Unum) then
758 Write_Info_Str (" EA");
761 if Elab_Des_Flags (Unum) then
762 Write_Info_Str (" ED");
765 if Elab_All_Des_Flags (Unum) then
766 Write_Info_Str (" AD");
772 end Write_With_Lines;
774 -- Start of processing for Write_ALI
777 -- We never write an ALI file if the original operating mode was
778 -- syntax-only (-gnats switch used in compiler invocation line)
780 if Original_Operating_Mode = Check_Syntax then
784 -- Build sorted source dependency table. We do this right away,
785 -- because it is referenced by Up_To_Date_ALI_File_Exists.
787 for Unum in Units.First .. Last_Unit loop
788 if Cunit_Entity (Unum) = Empty
789 or else not From_With_Type (Cunit_Entity (Unum))
791 Num_Sdep := Num_Sdep + 1;
792 Sdep_Table (Num_Sdep) := Unum;
796 -- Sort the table so that the D lines are in order
798 Lib.Sort (Sdep_Table (1 .. Num_Sdep));
800 -- If we are not generating code, and there is an up to date
801 -- ali file accessible, read it, and acquire the compilation
802 -- arguments from this file.
804 if Operating_Mode /= Generate_Code then
805 if Up_To_Date_ALI_File_Exists then
806 Update_Tables_From_ALI_File;
811 -- Otherwise acquire compilation arguments and prepare to write
812 -- out a new ali file.
814 Create_Output_Library_Info;
816 -- Output version line
818 Write_Info_Initiate ('V');
819 Write_Info_Str (" """);
820 Write_Info_Str (Verbose_Library_Version);
821 Write_Info_Char ('"');
825 -- Output main program line if this is acceptable main program
827 Output_Main_Program_Line : declare
828 U : Node_Id := Unit (Units.Table (Main_Unit).Cunit);
831 procedure M_Parameters;
832 -- Output parameters for main program line
838 procedure M_Parameters is
840 if Main_Priority (Main_Unit) /= Default_Main_Priority then
841 Write_Info_Char (' ');
842 Write_Info_Nat (Main_Priority (Main_Unit));
845 if Opt.Time_Slice_Set then
846 Write_Info_Str (" T=");
847 Write_Info_Nat (Opt.Time_Slice_Value);
850 Write_Info_Str (" W=");
852 (WC_Encoding_Letters (Wide_Character_Encoding_Method));
857 -- Start of processing for Output_Main_Program_Line
860 if Nkind (U) = N_Subprogram_Body
862 (Nkind (U) = N_Package_Body
864 Nkind (Original_Node (U)) in N_Subprogram_Instantiation)
866 -- If the unit is a subprogram instance, the entity for the
867 -- subprogram is the alias of the visible entity, which is the
868 -- related instance of the wrapper package. We retrieve the
869 -- subprogram declaration of the desired entity.
871 if Nkind (U) = N_Package_Body then
872 U := Parent (Parent (
873 Alias (Related_Instance (Defining_Unit_Name
874 (Specification (Unit (Library_Unit (Parent (U)))))))));
877 S := Specification (U);
879 if No (Parameter_Specifications (S)) then
880 if Nkind (S) = N_Procedure_Specification then
881 Write_Info_Initiate ('M');
882 Write_Info_Str (" P");
887 Nam : Node_Id := Defining_Unit_Name (S);
890 -- If it is a child unit, get its simple name
892 if Nkind (Nam) = N_Defining_Program_Unit_Name then
893 Nam := Defining_Identifier (Nam);
896 if Is_Integer_Type (Etype (Nam)) then
897 Write_Info_Initiate ('M');
898 Write_Info_Str (" F");
905 end Output_Main_Program_Line;
907 -- Write command argument ('A') lines
909 for A in 1 .. Compilation_Switches.Last loop
910 Write_Info_Initiate ('A');
911 Write_Info_Char (' ');
912 Write_Info_Str (Compilation_Switches.Table (A).all);
913 Write_Info_Terminate;
916 -- Output parameters ('P') line
918 Write_Info_Initiate ('P');
920 if Compilation_Errors then
921 Write_Info_Str (" CE");
924 if Opt.Detect_Blocking then
925 Write_Info_Str (" DB");
928 if Opt.Float_Format /= ' ' then
929 Write_Info_Str (" F");
931 if Opt.Float_Format = 'I' then
932 Write_Info_Char ('I');
934 elsif Opt.Float_Format_Long = 'D' then
935 Write_Info_Char ('D');
938 Write_Info_Char ('G');
943 and then not Is_Predefined_File_Name (Unit_File_Name (Main_Unit))
945 if Locking_Policy /= ' ' then
946 Write_Info_Str (" L");
947 Write_Info_Char (Locking_Policy);
950 if Queuing_Policy /= ' ' then
951 Write_Info_Str (" Q");
952 Write_Info_Char (Queuing_Policy);
955 if Task_Dispatching_Policy /= ' ' then
956 Write_Info_Str (" T");
957 Write_Info_Char (Task_Dispatching_Policy);
958 Write_Info_Char (' ');
963 Write_Info_Str (" NO");
966 if No_Run_Time_Mode then
967 Write_Info_Str (" NR");
970 if Normalize_Scalars then
971 Write_Info_Str (" NS");
974 if Optimize_Alignment /= 'O' then
975 Write_Info_Str (" O");
976 Write_Info_Char (Optimize_Alignment);
979 if Sec_Stack_Used then
980 Write_Info_Str (" SS");
983 if Unreserve_All_Interrupts then
984 Write_Info_Str (" UA");
987 if Exception_Mechanism = Back_End_Exceptions then
988 Write_Info_Str (" ZX");
993 -- Before outputting the restrictions line, update the setting of
994 -- the No_Elaboration_Code flag. Violations of this restriction
995 -- cannot be detected until after the backend has been called since
996 -- it is the backend that sets this flag. We have to check all units
997 -- for which we have generated code
999 for Unit in Units.First .. Last_Unit loop
1000 if Units.Table (Unit).Generate_Code
1001 or else Unit = Main_Unit
1003 if not Has_No_Elaboration_Code (Cunit (Unit)) then
1004 Main_Restrictions.Violated (No_Elaboration_Code) := True;
1009 -- Output first restrictions line
1011 Write_Info_Initiate ('R');
1012 Write_Info_Char (' ');
1014 -- First the information for the boolean restrictions
1016 for R in All_Boolean_Restrictions loop
1017 if Main_Restrictions.Set (R)
1018 and then not Restriction_Warnings (R)
1020 Write_Info_Char ('r');
1021 elsif Main_Restrictions.Violated (R) then
1022 Write_Info_Char ('v');
1024 Write_Info_Char ('n');
1028 -- And now the information for the parameter restrictions
1030 for RP in All_Parameter_Restrictions loop
1031 if Main_Restrictions.Set (RP)
1032 and then not Restriction_Warnings (RP)
1034 Write_Info_Char ('r');
1035 Write_Info_Nat (Nat (Main_Restrictions.Value (RP)));
1037 Write_Info_Char ('n');
1040 if not Main_Restrictions.Violated (RP)
1041 or else RP not in Checked_Parameter_Restrictions
1043 Write_Info_Char ('n');
1045 Write_Info_Char ('v');
1046 Write_Info_Nat (Nat (Main_Restrictions.Count (RP)));
1048 if Main_Restrictions.Unknown (RP) then
1049 Write_Info_Char ('+');
1056 -- Output R lines for No_Dependence entries
1058 for J in No_Dependence.First .. No_Dependence.Last loop
1059 if In_Extended_Main_Source_Unit (No_Dependence.Table (J).Unit)
1060 and then not No_Dependence.Table (J).Warn
1062 Write_Info_Initiate ('R');
1063 Write_Info_Char (' ');
1064 Write_Unit_Name (No_Dependence.Table (J).Unit);
1069 -- Output interrupt state lines
1071 for J in Interrupt_States.First .. Interrupt_States.Last loop
1072 Write_Info_Initiate ('I');
1073 Write_Info_Char (' ');
1074 Write_Info_Nat (Interrupt_States.Table (J).Interrupt_Number);
1075 Write_Info_Char (' ');
1076 Write_Info_Char (Interrupt_States.Table (J).Interrupt_State);
1077 Write_Info_Char (' ');
1079 (Nat (Get_Logical_Line_Number
1080 (Interrupt_States.Table (J).Pragma_Loc)));
1084 -- Output priority specific dispatching lines
1086 for J in Specific_Dispatching.First .. Specific_Dispatching.Last loop
1087 Write_Info_Initiate ('S');
1088 Write_Info_Char (' ');
1089 Write_Info_Char (Specific_Dispatching.Table (J).Dispatching_Policy);
1090 Write_Info_Char (' ');
1091 Write_Info_Nat (Specific_Dispatching.Table (J).First_Priority);
1092 Write_Info_Char (' ');
1093 Write_Info_Nat (Specific_Dispatching.Table (J).Last_Priority);
1094 Write_Info_Char (' ');
1096 (Nat (Get_Logical_Line_Number
1097 (Specific_Dispatching.Table (J).Pragma_Loc)));
1101 -- Loop through file table to output information for all units for which
1102 -- we have generated code, as marked by the Generate_Code flag.
1104 for Unit in Units.First .. Last_Unit loop
1105 if Units.Table (Unit).Generate_Code
1106 or else Unit = Main_Unit
1108 Write_Info_EOL; -- blank line
1109 Write_Unit_Information (Unit);
1113 Write_Info_EOL; -- blank line
1115 -- Output external version reference lines
1117 for J in 1 .. Version_Ref.Last loop
1118 Write_Info_Initiate ('E');
1119 Write_Info_Char (' ');
1121 for K in 1 .. String_Length (Version_Ref.Table (J)) loop
1122 Write_Info_Char_Code (Get_String_Char (Version_Ref.Table (J), K));
1128 -- Prepare to output the source dependency lines
1131 Unum : Unit_Number_Type;
1132 -- Number of unit being output
1134 Sind : Source_File_Index;
1135 -- Index of corresponding source file
1137 Fname : File_Name_Type;
1140 for J in 1 .. Num_Sdep loop
1141 Unum := Sdep_Table (J);
1142 Units.Table (Unum).Dependency_Num := J;
1143 Sind := Units.Table (Unum).Source_Index;
1145 Write_Info_Initiate ('D');
1146 Write_Info_Char (' ');
1148 -- Normal case of a unit entry with a source index
1150 if Sind /= No_Source_File then
1151 Fname := File_Name (Sind);
1153 -- Ensure that on platforms where the file names are not
1154 -- case sensitive, the recorded file name is in lower case.
1156 if not File_Names_Case_Sensitive then
1157 Get_Name_String (Fname);
1158 To_Lower (Name_Buffer (1 .. Name_Len));
1162 Write_Info_Name (Fname);
1163 Write_Info_Tab (25);
1164 Write_Info_Str (String (Time_Stamp (Sind)));
1165 Write_Info_Char (' ');
1166 Write_Info_Str (Get_Hex_String (Source_Checksum (Sind)));
1168 -- If subunit, add unit name, omitting the %b at the end
1170 if Present (Cunit (Unum))
1171 and then Nkind (Unit (Cunit (Unum))) = N_Subunit
1173 Get_Decoded_Name_String (Unit_Name (Unum));
1174 Write_Info_Char (' ');
1175 Write_Info_Str (Name_Buffer (1 .. Name_Len - 2));
1178 -- If Source_Reference pragma used output information
1180 if Num_SRef_Pragmas (Sind) > 0 then
1181 Write_Info_Char (' ');
1183 if Num_SRef_Pragmas (Sind) = 1 then
1184 Write_Info_Nat (Int (First_Mapped_Line (Sind)));
1189 Write_Info_Char (':');
1190 Write_Info_Name (Reference_Name (Sind));
1193 -- Case where there is no source index (happens for missing
1194 -- files). In this case we write a dummy time stamp.
1197 Write_Info_Name (Unit_File_Name (Unum));
1198 Write_Info_Tab (25);
1199 Write_Info_Str (String (Dummy_Time_Stamp));
1200 Write_Info_Char (' ');
1201 Write_Info_Str (Get_Hex_String (0));
1209 Write_Info_Terminate;
1210 Close_Output_Library_Info;
1213 ---------------------
1214 -- Write_Unit_Name --
1215 ---------------------
1217 procedure Write_Unit_Name (N : Node_Id) is
1219 if Nkind (N) = N_Identifier then
1220 Write_Info_Name (Chars (N));
1223 pragma Assert (Nkind (N) = N_Selected_Component);
1224 Write_Unit_Name (Prefix (N));
1225 Write_Info_Char ('.');
1226 Write_Unit_Name (Selector_Name (N));
1228 end Write_Unit_Name;