1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2008, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 pragma Style_Checks (All_Checks);
35 -- Subprogram ordering not enforced in this unit
36 -- (because of some logical groupings).
38 with Atree; use Atree;
39 with Einfo; use Einfo;
40 with Fname; use Fname;
41 with Output; use Output;
42 with Sinfo; use Sinfo;
43 with Sinput; use Sinput;
44 with Stand; use Stand;
45 with Stringt; use Stringt;
46 with Tree_IO; use Tree_IO;
47 with Uname; use Uname;
51 Switch_Storing_Enabled : Boolean := True;
52 -- Set to False by Disable_Switch_Storing
54 -----------------------
55 -- Local Subprograms --
56 -----------------------
59 Yes_Before, -- S1 is in same extended unit as S2 and appears before it
60 Yes_Same, -- S1 is in same extended unit as S2, Slocs are the same
61 Yes_After, -- S1 is in same extended unit as S2, and appears after it
62 No); -- S2 is not in same extended unit as S2
64 function Check_Same_Extended_Unit (S1, S2 : Source_Ptr) return SEU_Result;
65 -- Used by In_Same_Extended_Unit and Earlier_In_Extended_Unit. Returns
66 -- value as described above.
68 function Get_Code_Or_Source_Unit
70 Unwind_Instances : Boolean) return Unit_Number_Type;
71 -- Common code for Get_Code_Unit (get unit of instantiation for location)
72 -- and Get_Source_Unit (get unit of template for location).
74 --------------------------------------------
75 -- Access Functions for Unit Table Fields --
76 --------------------------------------------
78 function Cunit (U : Unit_Number_Type) return Node_Id is
80 return Units.Table (U).Cunit;
83 function Cunit_Entity (U : Unit_Number_Type) return Entity_Id is
85 return Units.Table (U).Cunit_Entity;
88 function Dependency_Num (U : Unit_Number_Type) return Nat is
90 return Units.Table (U).Dependency_Num;
93 function Dynamic_Elab (U : Unit_Number_Type) return Boolean is
95 return Units.Table (U).Dynamic_Elab;
98 function Error_Location (U : Unit_Number_Type) return Source_Ptr is
100 return Units.Table (U).Error_Location;
103 function Expected_Unit (U : Unit_Number_Type) return Unit_Name_Type is
105 return Units.Table (U).Expected_Unit;
108 function Fatal_Error (U : Unit_Number_Type) return Boolean is
110 return Units.Table (U).Fatal_Error;
113 function Generate_Code (U : Unit_Number_Type) return Boolean is
115 return Units.Table (U).Generate_Code;
118 function Has_RACW (U : Unit_Number_Type) return Boolean is
120 return Units.Table (U).Has_RACW;
123 function Is_Compiler_Unit (U : Unit_Number_Type) return Boolean is
125 return Units.Table (U).Is_Compiler_Unit;
126 end Is_Compiler_Unit;
128 function Ident_String (U : Unit_Number_Type) return Node_Id is
130 return Units.Table (U).Ident_String;
133 function Loading (U : Unit_Number_Type) return Boolean is
135 return Units.Table (U).Loading;
138 function Main_Priority (U : Unit_Number_Type) return Int is
140 return Units.Table (U).Main_Priority;
143 function Munit_Index (U : Unit_Number_Type) return Nat is
145 return Units.Table (U).Munit_Index;
148 function OA_Setting (U : Unit_Number_Type) return Character is
150 return Units.Table (U).OA_Setting;
153 function Source_Index (U : Unit_Number_Type) return Source_File_Index is
155 return Units.Table (U).Source_Index;
158 function Unit_File_Name (U : Unit_Number_Type) return File_Name_Type is
160 return Units.Table (U).Unit_File_Name;
163 function Unit_Name (U : Unit_Number_Type) return Unit_Name_Type is
165 return Units.Table (U).Unit_Name;
168 ------------------------------------------
169 -- Subprograms to Set Unit Table Fields --
170 ------------------------------------------
172 procedure Set_Cunit (U : Unit_Number_Type; N : Node_Id) is
174 Units.Table (U).Cunit := N;
177 procedure Set_Cunit_Entity (U : Unit_Number_Type; E : Entity_Id) is
179 Units.Table (U).Cunit_Entity := E;
180 Set_Is_Compilation_Unit (E);
181 end Set_Cunit_Entity;
183 procedure Set_Dynamic_Elab (U : Unit_Number_Type; B : Boolean := True) is
185 Units.Table (U).Dynamic_Elab := B;
186 end Set_Dynamic_Elab;
188 procedure Set_Error_Location (U : Unit_Number_Type; W : Source_Ptr) is
190 Units.Table (U).Error_Location := W;
191 end Set_Error_Location;
193 procedure Set_Fatal_Error (U : Unit_Number_Type; B : Boolean := True) is
195 Units.Table (U).Fatal_Error := B;
198 procedure Set_Generate_Code (U : Unit_Number_Type; B : Boolean := True) is
200 Units.Table (U).Generate_Code := B;
201 end Set_Generate_Code;
203 procedure Set_Has_RACW (U : Unit_Number_Type; B : Boolean := True) is
205 Units.Table (U).Has_RACW := B;
208 procedure Set_Is_Compiler_Unit
209 (U : Unit_Number_Type;
213 Units.Table (U).Is_Compiler_Unit := B;
214 end Set_Is_Compiler_Unit;
216 procedure Set_Ident_String (U : Unit_Number_Type; N : Node_Id) is
218 Units.Table (U).Ident_String := N;
219 end Set_Ident_String;
221 procedure Set_Loading (U : Unit_Number_Type; B : Boolean := True) is
223 Units.Table (U).Loading := B;
226 procedure Set_Main_Priority (U : Unit_Number_Type; P : Int) is
228 Units.Table (U).Main_Priority := P;
229 end Set_Main_Priority;
231 procedure Set_OA_Setting (U : Unit_Number_Type; C : Character) is
233 Units.Table (U).OA_Setting := C;
236 procedure Set_Unit_Name (U : Unit_Number_Type; N : Unit_Name_Type) is
238 Units.Table (U).Unit_Name := N;
241 ------------------------------
242 -- Check_Same_Extended_Unit --
243 ------------------------------
245 function Check_Same_Extended_Unit (S1, S2 : Source_Ptr) return SEU_Result is
248 Sind1 : Source_File_Index;
249 Sind2 : Source_File_Index;
252 Unum1 : Unit_Number_Type;
253 Unum2 : Unit_Number_Type;
260 if S1 = No_Location or else S2 = No_Location then
263 elsif S1 = Standard_Location then
264 if S2 = Standard_Location then
270 elsif S2 = Standard_Location then
276 Unum1 := Get_Code_Unit (Sloc1);
277 Unum2 := Get_Code_Unit (Sloc2);
280 Sind1 := Get_Source_File_Index (Sloc1);
281 Sind2 := Get_Source_File_Index (Sloc2);
283 if Sind1 = Sind2 then
284 if Sloc1 < Sloc2 then
286 elsif Sloc1 > Sloc2 then
293 -- OK, the two nodes are in separate source elements, but this is not
294 -- decisive, because of the issue of subunits and instantiations.
296 -- First we deal with subunits, since if the subunit is in an
297 -- instantiation, we know that the parent is in the corresponding
298 -- instantiation, since that is the only way we can have a subunit
299 -- that is part of an instantiation.
301 Unit1 := Unit (Cunit (Unum1));
302 Unit2 := Unit (Cunit (Unum2));
304 if Nkind (Unit1) = N_Subunit
305 and then Present (Corresponding_Stub (Unit1))
307 -- Both in subunits. They could have a common ancestor. If they
308 -- do, then the deeper one must have a longer unit name. Replace
309 -- the deeper one with its corresponding stub, in order to find
310 -- nearest common ancestor, if any.
312 if Nkind (Unit2) = N_Subunit
313 and then Present (Corresponding_Stub (Unit2))
315 if Length_Of_Name (Unit_Name (Unum1)) <
316 Length_Of_Name (Unit_Name (Unum2))
318 Sloc2 := Sloc (Corresponding_Stub (Unit2));
319 Unum2 := Get_Source_Unit (Sloc2);
323 Sloc1 := Sloc (Corresponding_Stub (Unit1));
324 Unum1 := Get_Source_Unit (Sloc1);
328 -- Nod1 in subunit, Nod2 not
331 Sloc1 := Sloc (Corresponding_Stub (Unit1));
332 Unum1 := Get_Source_Unit (Sloc1);
336 -- Nod2 in subunit, Nod1 not
338 elsif Nkind (Unit2) = N_Subunit
339 and then Present (Corresponding_Stub (Unit2))
341 Sloc2 := Sloc (Corresponding_Stub (Unit2));
342 Unum2 := Get_Source_Unit (Sloc2);
346 -- At this stage we know that neither is a subunit, so we deal
347 -- with instantiations, since we could have a common ancestor
349 Inst1 := Instantiation (Sind1);
350 Inst2 := Instantiation (Sind2);
352 if Inst1 /= No_Location then
354 -- Both are instantiations
356 if Inst2 /= No_Location then
358 Depth1 := Instantiation_Depth (Sloc1);
359 Depth2 := Instantiation_Depth (Sloc2);
361 if Depth1 < Depth2 then
363 Unum2 := Get_Source_Unit (Sloc2);
366 elsif Depth1 > Depth2 then
368 Unum1 := Get_Source_Unit (Sloc1);
374 Unum1 := Get_Source_Unit (Sloc1);
375 Unum2 := Get_Source_Unit (Sloc2);
379 -- Only first node is in instantiation
383 Unum1 := Get_Source_Unit (Sloc1);
387 -- Only second node is instantiation
389 elsif Inst2 /= No_Location then
391 Unum2 := Get_Source_Unit (Sloc2);
395 -- No instantiations involved, so we are not in the same unit
396 -- However, there is one case still to check, namely the case
397 -- where one location is in the spec, and the other in the
398 -- corresponding body (the spec location is earlier).
400 if Nkind (Unit1) = N_Subprogram_Body
402 Nkind (Unit1) = N_Package_Body
404 if Library_Unit (Cunit (Unum1)) = Cunit (Unum2) then
408 elsif Nkind (Unit2) = N_Subprogram_Body
410 Nkind (Unit2) = N_Package_Body
412 if Library_Unit (Cunit (Unum2)) = Cunit (Unum1) then
417 -- If that special case does not occur, then we are certain that
418 -- the two locations are really in separate units.
425 end Check_Same_Extended_Unit;
427 -------------------------------
428 -- Compilation_Switches_Last --
429 -------------------------------
431 function Compilation_Switches_Last return Nat is
433 return Compilation_Switches.Last;
434 end Compilation_Switches_Last;
436 procedure Disable_Switch_Storing is
438 Switch_Storing_Enabled := False;
439 end Disable_Switch_Storing;
441 ------------------------------
442 -- Earlier_In_Extended_Unit --
443 ------------------------------
445 function Earlier_In_Extended_Unit (S1, S2 : Source_Ptr) return Boolean is
447 return Check_Same_Extended_Unit (S1, S2) = Yes_Before;
448 end Earlier_In_Extended_Unit;
450 ----------------------------
451 -- Entity_Is_In_Main_Unit --
452 ----------------------------
454 function Entity_Is_In_Main_Unit (E : Entity_Id) return Boolean is
460 while S /= Standard_Standard loop
461 if S = Main_Unit_Entity then
463 elsif Ekind (S) = E_Package and then Is_Child_Unit (S) then
471 end Entity_Is_In_Main_Unit;
473 --------------------------
474 -- Generic_May_Lack_ALI --
475 --------------------------
477 function Generic_May_Lack_ALI (Sfile : File_Name_Type) return Boolean is
479 -- We allow internal generic units to be used without having a
480 -- corresponding ALI files to help bootstrapping with older compilers
481 -- that did not support generating ALIs for such generics. It is safe
482 -- to do so because the only thing the generated code would contain
483 -- is the elaboration boolean, and we are careful to elaborate all
484 -- predefined units first anyway.
486 return Is_Internal_File_Name
488 Renamings_Included => True);
489 end Generic_May_Lack_ALI;
491 -----------------------------
492 -- Get_Code_Or_Source_Unit --
493 -----------------------------
495 function Get_Code_Or_Source_Unit
497 Unwind_Instances : Boolean) return Unit_Number_Type
500 -- Search table unless we have No_Location, which can happen if the
501 -- relevant location has not been set yet. Happens for example when
502 -- we obtain Sloc (Cunit (Main_Unit)) before it is set.
504 if S /= No_Location then
506 Source_File : Source_File_Index;
507 Source_Unit : Unit_Number_Type;
510 Source_File := Get_Source_File_Index (S);
512 if Unwind_Instances then
513 while Template (Source_File) /= No_Source_File loop
514 Source_File := Template (Source_File);
518 Source_Unit := Unit (Source_File);
520 if Source_Unit /= No_Unit then
526 -- If S was No_Location, or was not in the table, we must be in the main
527 -- source unit (and the value has not been placed in the table yet),
528 -- or in one of the configuration pragma files.
531 end Get_Code_Or_Source_Unit;
537 function Get_Code_Unit (S : Source_Ptr) return Unit_Number_Type is
539 return Get_Code_Or_Source_Unit (Top_Level_Location (S),
540 Unwind_Instances => False);
543 function Get_Code_Unit (N : Node_Or_Entity_Id) return Unit_Number_Type is
545 return Get_Code_Unit (Sloc (N));
548 ----------------------------
549 -- Get_Compilation_Switch --
550 ----------------------------
552 function Get_Compilation_Switch (N : Pos) return String_Ptr is
554 if N <= Compilation_Switches.Last then
555 return Compilation_Switches.Table (N);
560 end Get_Compilation_Switch;
562 ----------------------------------
563 -- Get_Cunit_Entity_Unit_Number --
564 ----------------------------------
566 function Get_Cunit_Entity_Unit_Number
567 (E : Entity_Id) return Unit_Number_Type
570 for U in Units.First .. Units.Last loop
571 if Cunit_Entity (U) = E then
576 -- If not in the table, must be the main source unit, and we just
577 -- have not got it put into the table yet.
580 end Get_Cunit_Entity_Unit_Number;
582 ---------------------------
583 -- Get_Cunit_Unit_Number --
584 ---------------------------
586 function Get_Cunit_Unit_Number (N : Node_Id) return Unit_Number_Type is
588 for U in Units.First .. Units.Last loop
589 if Cunit (U) = N then
594 -- If not in the table, must be the main source unit, and we just
595 -- have not got it put into the table yet.
598 end Get_Cunit_Unit_Number;
600 ---------------------
601 -- Get_Source_Unit --
602 ---------------------
604 function Get_Source_Unit (S : Source_Ptr) return Unit_Number_Type is
606 return Get_Code_Or_Source_Unit (S, Unwind_Instances => True);
609 function Get_Source_Unit (N : Node_Or_Entity_Id) return Unit_Number_Type is
611 return Get_Source_Unit (Sloc (N));
614 --------------------------------
615 -- In_Extended_Main_Code_Unit --
616 --------------------------------
618 function In_Extended_Main_Code_Unit
619 (N : Node_Or_Entity_Id) return Boolean
622 if Sloc (N) = Standard_Location then
625 elsif Sloc (N) = No_Location then
628 -- Special case Itypes to test the Sloc of the associated node. The
629 -- reason we do this is for possible calls from gigi after -gnatD
630 -- processing is complete in sprint. This processing updates the
631 -- sloc fields of all nodes in the tree, but itypes are not in the
632 -- tree so their slocs do not get updated.
634 elsif Nkind (N) = N_Defining_Identifier
635 and then Is_Itype (N)
637 return In_Extended_Main_Code_Unit (Associated_Node_For_Itype (N));
639 -- Otherwise see if we are in the main unit
641 elsif Get_Code_Unit (Sloc (N)) = Get_Code_Unit (Cunit (Main_Unit)) then
644 -- Node may be in spec (or subunit etc) of main unit
648 In_Same_Extended_Unit (N, Cunit (Main_Unit));
650 end In_Extended_Main_Code_Unit;
652 function In_Extended_Main_Code_Unit (Loc : Source_Ptr) return Boolean is
654 if Loc = Standard_Location then
657 elsif Loc = No_Location then
660 -- Otherwise see if we are in the main unit
662 elsif Get_Code_Unit (Loc) = Get_Code_Unit (Cunit (Main_Unit)) then
665 -- Location may be in spec (or subunit etc) of main unit
669 In_Same_Extended_Unit (Loc, Sloc (Cunit (Main_Unit)));
671 end In_Extended_Main_Code_Unit;
673 ----------------------------------
674 -- In_Extended_Main_Source_Unit --
675 ----------------------------------
677 function In_Extended_Main_Source_Unit
678 (N : Node_Or_Entity_Id) return Boolean
680 Nloc : constant Source_Ptr := Sloc (N);
681 Mloc : constant Source_Ptr := Sloc (Cunit (Main_Unit));
684 -- If Mloc is not set, it means we are still parsing the main unit,
685 -- so everything so far is in the extended main source unit.
687 if Mloc = No_Location then
690 -- Special value cases
692 elsif Nloc = Standard_Location then
695 elsif Nloc = No_Location then
698 -- Special case Itypes to test the Sloc of the associated node. The
699 -- reason we do this is for possible calls from gigi after -gnatD
700 -- processing is complete in sprint. This processing updates the
701 -- sloc fields of all nodes in the tree, but itypes are not in the
702 -- tree so their slocs do not get updated.
704 elsif Nkind (N) = N_Defining_Identifier
705 and then Is_Itype (N)
707 return In_Extended_Main_Source_Unit (Associated_Node_For_Itype (N));
709 -- Otherwise compare original locations to see if in same unit
713 In_Same_Extended_Unit
714 (Original_Location (Nloc), Original_Location (Mloc));
716 end In_Extended_Main_Source_Unit;
718 function In_Extended_Main_Source_Unit
719 (Loc : Source_Ptr) return Boolean
721 Mloc : constant Source_Ptr := Sloc (Cunit (Main_Unit));
724 -- If Mloc is not set, it means we are still parsing the main unit,
725 -- so everything so far is in the extended main source unit.
727 if Mloc = No_Location then
730 -- Special value cases
732 elsif Loc = Standard_Location then
735 elsif Loc = No_Location then
738 -- Otherwise compare original locations to see if in same unit
742 In_Same_Extended_Unit
743 (Original_Location (Loc), Original_Location (Mloc));
745 end In_Extended_Main_Source_Unit;
747 ------------------------
748 -- In_Predefined_Unit --
749 ------------------------
751 function In_Predefined_Unit (N : Node_Or_Entity_Id) return Boolean is
753 return In_Predefined_Unit (Sloc (N));
754 end In_Predefined_Unit;
756 function In_Predefined_Unit (S : Source_Ptr) return Boolean is
757 Unit : constant Unit_Number_Type := Get_Source_Unit (S);
758 File : constant File_Name_Type := Unit_File_Name (Unit);
760 return Is_Predefined_File_Name (File);
761 end In_Predefined_Unit;
763 -----------------------
764 -- In_Same_Code_Unit --
765 -----------------------
767 function In_Same_Code_Unit (N1, N2 : Node_Or_Entity_Id) return Boolean is
768 S1 : constant Source_Ptr := Sloc (N1);
769 S2 : constant Source_Ptr := Sloc (N2);
772 if S1 = No_Location or else S2 = No_Location then
775 elsif S1 = Standard_Location then
776 return S2 = Standard_Location;
778 elsif S2 = Standard_Location then
782 return Get_Code_Unit (N1) = Get_Code_Unit (N2);
783 end In_Same_Code_Unit;
785 ---------------------------
786 -- In_Same_Extended_Unit --
787 ---------------------------
789 function In_Same_Extended_Unit
790 (N1, N2 : Node_Or_Entity_Id) return Boolean
793 return Check_Same_Extended_Unit (Sloc (N1), Sloc (N2)) /= No;
794 end In_Same_Extended_Unit;
796 function In_Same_Extended_Unit (S1, S2 : Source_Ptr) return Boolean is
798 return Check_Same_Extended_Unit (S1, S2) /= No;
799 end In_Same_Extended_Unit;
801 -------------------------
802 -- In_Same_Source_Unit --
803 -------------------------
805 function In_Same_Source_Unit (N1, N2 : Node_Or_Entity_Id) return Boolean is
806 S1 : constant Source_Ptr := Sloc (N1);
807 S2 : constant Source_Ptr := Sloc (N2);
810 if S1 = No_Location or else S2 = No_Location then
813 elsif S1 = Standard_Location then
814 return S2 = Standard_Location;
816 elsif S2 = Standard_Location then
820 return Get_Source_Unit (N1) = Get_Source_Unit (N2);
821 end In_Same_Source_Unit;
823 -----------------------------
824 -- Increment_Serial_Number --
825 -----------------------------
827 function Increment_Serial_Number return Nat is
828 TSN : Int renames Units.Table (Current_Sem_Unit).Serial_Number;
832 end Increment_Serial_Number;
838 procedure Initialize is
840 Linker_Option_Lines.Init;
843 Compilation_Switches.Init;
850 function Is_Loaded (Uname : Unit_Name_Type) return Boolean is
852 for Unum in Units.First .. Units.Last loop
853 if Uname = Unit_Name (Unum) then
865 function Last_Unit return Unit_Number_Type is
874 procedure List (File_Names_Only : Boolean := False) is separate;
882 Linker_Option_Lines.Locked := True;
883 Load_Stack.Locked := True;
884 Units.Locked := True;
885 Linker_Option_Lines.Release;
894 function Num_Units return Nat is
896 return Int (Units.Last) - Int (Main_Unit) + 1;
903 procedure Remove_Unit (U : Unit_Number_Type) is
905 if U = Units.Last then
906 Units.Decrement_Last;
910 ----------------------------------
911 -- Replace_Linker_Option_String --
912 ----------------------------------
914 procedure Replace_Linker_Option_String
915 (S : String_Id; Match_String : String)
918 if Match_String'Length > 0 then
919 for J in 1 .. Linker_Option_Lines.Last loop
920 String_To_Name_Buffer (Linker_Option_Lines.Table (J).Option);
922 if Match_String = Name_Buffer (1 .. Match_String'Length) then
923 Linker_Option_Lines.Table (J).Option := S;
929 Store_Linker_Option_String (S);
930 end Replace_Linker_Option_String;
936 procedure Sort (Tbl : in out Unit_Ref_Table) is separate;
938 ------------------------------
939 -- Store_Compilation_Switch --
940 ------------------------------
942 procedure Store_Compilation_Switch (Switch : String) is
944 if Switch_Storing_Enabled then
945 Compilation_Switches.Increment_Last;
946 Compilation_Switches.Table (Compilation_Switches.Last) :=
949 -- Fix up --RTS flag which has been transformed by the gcc driver
952 if Switch'Last >= Switch'First + 4
953 and then Switch (Switch'First .. Switch'First + 4) = "-fRTS"
955 Compilation_Switches.Table
956 (Compilation_Switches.Last) (Switch'First + 1) := '-';
959 end Store_Compilation_Switch;
961 --------------------------------
962 -- Store_Linker_Option_String --
963 --------------------------------
965 procedure Store_Linker_Option_String (S : String_Id) is
967 Linker_Option_Lines.Increment_Last;
968 Linker_Option_Lines.Table (Linker_Option_Lines.Last) :=
969 (Option => S, Unit => Current_Sem_Unit);
970 end Store_Linker_Option_String;
972 -------------------------------
973 -- Synchronize_Serial_Number --
974 -------------------------------
976 procedure Synchronize_Serial_Number is
977 TSN : Int renames Units.Table (Current_Sem_Unit).Serial_Number;
980 end Synchronize_Serial_Number;
986 procedure Tree_Read is
993 -- Read Compilation_Switches table. First release the memory occupied
994 -- by the previously loaded switches.
996 for J in Compilation_Switches.First .. Compilation_Switches.Last loop
997 Free (Compilation_Switches.Table (J));
1001 Compilation_Switches.Set_Last (N);
1003 for J in 1 .. N loop
1005 Compilation_Switches.Table (J) := S;
1013 procedure Tree_Write is
1017 -- Write Compilation_Switches table
1019 Tree_Write_Int (Compilation_Switches.Last);
1021 for J in 1 .. Compilation_Switches.Last loop
1022 Tree_Write_Str (Compilation_Switches.Table (J));
1032 Linker_Option_Lines.Locked := False;
1033 Load_Stack.Locked := False;
1034 Units.Locked := False;
1041 function Version_Get (U : Unit_Number_Type) return Word_Hex_String is
1043 return Get_Hex_String (Units.Table (U).Version);
1046 ------------------------
1047 -- Version_Referenced --
1048 ------------------------
1050 procedure Version_Referenced (S : String_Id) is
1052 Version_Ref.Append (S);
1053 end Version_Referenced;