1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2011, 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. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
30 ------------------------------------------------------------------------------
32 pragma Style_Checks (All_Checks);
33 -- Subprogram ordering not enforced in this unit
34 -- (because of some logical groupings).
36 with Atree; use Atree;
37 with Csets; use Csets;
38 with Einfo; use Einfo;
39 with Fname; use Fname;
40 with Output; use Output;
41 with Sinfo; use Sinfo;
42 with Sinput; use Sinput;
43 with Stand; use Stand;
44 with Stringt; use Stringt;
45 with Tree_IO; use Tree_IO;
46 with Uname; use Uname;
47 with Widechar; use Widechar;
51 Switch_Storing_Enabled : Boolean := True;
52 -- Controlled by Enable_Switch_Storing/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_Allocator (U : Unit_Number_Type) return Boolean is
120 return Units.Table (U).Has_Allocator;
123 function Has_RACW (U : Unit_Number_Type) return Boolean is
125 return Units.Table (U).Has_RACW;
128 function Is_Compiler_Unit (U : Unit_Number_Type) return Boolean is
130 return Units.Table (U).Is_Compiler_Unit;
131 end Is_Compiler_Unit;
133 function Ident_String (U : Unit_Number_Type) return Node_Id is
135 return Units.Table (U).Ident_String;
138 function Loading (U : Unit_Number_Type) return Boolean is
140 return Units.Table (U).Loading;
143 function Main_CPU (U : Unit_Number_Type) return Int is
145 return Units.Table (U).Main_CPU;
148 function Main_Priority (U : Unit_Number_Type) return Int is
150 return Units.Table (U).Main_Priority;
153 function Munit_Index (U : Unit_Number_Type) return Nat is
155 return Units.Table (U).Munit_Index;
158 function OA_Setting (U : Unit_Number_Type) return Character is
160 return Units.Table (U).OA_Setting;
163 function Source_Index (U : Unit_Number_Type) return Source_File_Index is
165 return Units.Table (U).Source_Index;
168 function Unit_File_Name (U : Unit_Number_Type) return File_Name_Type is
170 return Units.Table (U).Unit_File_Name;
173 function Unit_Name (U : Unit_Number_Type) return Unit_Name_Type is
175 return Units.Table (U).Unit_Name;
178 ------------------------------------------
179 -- Subprograms to Set Unit Table Fields --
180 ------------------------------------------
182 procedure Set_Cunit (U : Unit_Number_Type; N : Node_Id) is
184 Units.Table (U).Cunit := N;
187 procedure Set_Cunit_Entity (U : Unit_Number_Type; E : Entity_Id) is
189 Units.Table (U).Cunit_Entity := E;
190 Set_Is_Compilation_Unit (E);
191 end Set_Cunit_Entity;
193 procedure Set_Dynamic_Elab (U : Unit_Number_Type; B : Boolean := True) is
195 Units.Table (U).Dynamic_Elab := B;
196 end Set_Dynamic_Elab;
198 procedure Set_Error_Location (U : Unit_Number_Type; W : Source_Ptr) is
200 Units.Table (U).Error_Location := W;
201 end Set_Error_Location;
203 procedure Set_Fatal_Error (U : Unit_Number_Type; B : Boolean := True) is
205 Units.Table (U).Fatal_Error := B;
208 procedure Set_Generate_Code (U : Unit_Number_Type; B : Boolean := True) is
210 Units.Table (U).Generate_Code := B;
211 end Set_Generate_Code;
213 procedure Set_Has_Allocator (U : Unit_Number_Type; B : Boolean := True) is
215 Units.Table (U).Has_Allocator := B;
216 end Set_Has_Allocator;
218 procedure Set_Has_RACW (U : Unit_Number_Type; B : Boolean := True) is
220 Units.Table (U).Has_RACW := B;
223 procedure Set_Is_Compiler_Unit
224 (U : Unit_Number_Type;
228 Units.Table (U).Is_Compiler_Unit := B;
229 end Set_Is_Compiler_Unit;
231 procedure Set_Ident_String (U : Unit_Number_Type; N : Node_Id) is
233 Units.Table (U).Ident_String := N;
234 end Set_Ident_String;
236 procedure Set_Loading (U : Unit_Number_Type; B : Boolean := True) is
238 Units.Table (U).Loading := B;
241 procedure Set_Main_CPU (U : Unit_Number_Type; P : Int) is
243 Units.Table (U).Main_CPU := P;
246 procedure Set_Main_Priority (U : Unit_Number_Type; P : Int) is
248 Units.Table (U).Main_Priority := P;
249 end Set_Main_Priority;
251 procedure Set_OA_Setting (U : Unit_Number_Type; C : Character) is
253 Units.Table (U).OA_Setting := C;
256 procedure Set_Unit_Name (U : Unit_Number_Type; N : Unit_Name_Type) is
258 Units.Table (U).Unit_Name := N;
261 ------------------------------
262 -- Check_Same_Extended_Unit --
263 ------------------------------
265 function Check_Same_Extended_Unit (S1, S2 : Source_Ptr) return SEU_Result is
268 Sind1 : Source_File_Index;
269 Sind2 : Source_File_Index;
272 Unum1 : Unit_Number_Type;
273 Unum2 : Unit_Number_Type;
280 if S1 = No_Location or else S2 = No_Location then
283 elsif S1 = Standard_Location then
284 if S2 = Standard_Location then
290 elsif S2 = Standard_Location then
297 Unum1 := Get_Source_Unit (Sloc1);
298 Unum2 := Get_Source_Unit (Sloc2);
301 -- Step 1: Check whether the two locations are in the same source
304 Sind1 := Get_Source_File_Index (Sloc1);
305 Sind2 := Get_Source_File_Index (Sloc2);
307 if Sind1 = Sind2 then
308 if Sloc1 < Sloc2 then
310 elsif Sloc1 > Sloc2 then
317 -- Step 2: Check subunits. If a subunit is instantiated, follow the
318 -- instantiation chain rather than the stub chain.
320 Unit1 := Unit (Cunit (Unum1));
321 Unit2 := Unit (Cunit (Unum2));
322 Inst1 := Instantiation (Sind1);
323 Inst2 := Instantiation (Sind2);
325 if Nkind (Unit1) = N_Subunit
326 and then Present (Corresponding_Stub (Unit1))
327 and then Inst1 = No_Location
329 if Nkind (Unit2) = N_Subunit
330 and then Present (Corresponding_Stub (Unit2))
331 and then Inst2 = No_Location
333 -- Both locations refer to subunits which may have a common
334 -- ancestor. If they do, the deeper subunit must have a longer
335 -- unit name. Replace the deeper one with its corresponding
336 -- stub in order to find the nearest ancestor.
338 if Length_Of_Name (Unit_Name (Unum1)) <
339 Length_Of_Name (Unit_Name (Unum2))
341 Sloc2 := Sloc (Corresponding_Stub (Unit2));
342 Unum2 := Get_Source_Unit (Sloc2);
346 Sloc1 := Sloc (Corresponding_Stub (Unit1));
347 Unum1 := Get_Source_Unit (Sloc1);
351 -- Sloc1 in subunit, Sloc2 not
354 Sloc1 := Sloc (Corresponding_Stub (Unit1));
355 Unum1 := Get_Source_Unit (Sloc1);
359 -- Sloc2 in subunit, Sloc1 not
361 elsif Nkind (Unit2) = N_Subunit
362 and then Present (Corresponding_Stub (Unit2))
363 and then Inst2 = No_Location
365 Sloc2 := Sloc (Corresponding_Stub (Unit2));
366 Unum2 := Get_Source_Unit (Sloc2);
370 -- Step 3: Check instances. The two locations may yield a common
373 if Inst1 /= No_Location then
374 if Inst2 /= No_Location then
376 -- Both locations denote instantiations
378 Depth1 := Instantiation_Depth (Sloc1);
379 Depth2 := Instantiation_Depth (Sloc2);
381 if Depth1 < Depth2 then
383 Unum2 := Get_Source_Unit (Sloc2);
386 elsif Depth1 > Depth2 then
388 Unum1 := Get_Source_Unit (Sloc1);
394 Unum1 := Get_Source_Unit (Sloc1);
395 Unum2 := Get_Source_Unit (Sloc2);
399 -- Sloc1 is an instantiation
403 Unum1 := Get_Source_Unit (Sloc1);
407 -- Sloc2 is an instantiation
409 elsif Inst2 /= No_Location then
411 Unum2 := Get_Source_Unit (Sloc2);
415 -- Step 4: One location in the spec, the other in the corresponding
416 -- body of the same unit. The location in the spec is considered
419 if Nkind (Unit1) = N_Subprogram_Body
421 Nkind (Unit1) = N_Package_Body
423 if Library_Unit (Cunit (Unum1)) = Cunit (Unum2) then
427 elsif Nkind (Unit2) = N_Subprogram_Body
429 Nkind (Unit2) = N_Package_Body
431 if Library_Unit (Cunit (Unum2)) = Cunit (Unum1) then
436 -- At this point it is certain that the two locations denote two
437 -- entirely separate units.
444 end Check_Same_Extended_Unit;
446 -------------------------------
447 -- Compilation_Switches_Last --
448 -------------------------------
450 function Compilation_Switches_Last return Nat is
452 return Compilation_Switches.Last;
453 end Compilation_Switches_Last;
455 ---------------------------
456 -- Enable_Switch_Storing --
457 ---------------------------
459 procedure Enable_Switch_Storing is
461 Switch_Storing_Enabled := True;
462 end Enable_Switch_Storing;
464 ----------------------------
465 -- Disable_Switch_Storing --
466 ----------------------------
468 procedure Disable_Switch_Storing is
470 Switch_Storing_Enabled := False;
471 end Disable_Switch_Storing;
473 ------------------------------
474 -- Earlier_In_Extended_Unit --
475 ------------------------------
477 function Earlier_In_Extended_Unit (S1, S2 : Source_Ptr) return Boolean is
479 return Check_Same_Extended_Unit (S1, S2) = Yes_Before;
480 end Earlier_In_Extended_Unit;
482 -----------------------
483 -- Exact_Source_Name --
484 -----------------------
486 function Exact_Source_Name (Loc : Source_Ptr) return String is
487 U : constant Unit_Number_Type := Get_Source_Unit (Loc);
488 Buf : constant Source_Buffer_Ptr := Source_Text (Source_Index (U));
489 Orig : constant Source_Ptr := Original_Location (Loc);
494 pragma Warnings (Off, WC);
495 pragma Warnings (Off, Err);
498 -- Entity is character literal
500 if Buf (Orig) = ''' then
501 return String (Buf (Orig .. Orig + 2));
503 -- Entity is operator symbol
505 elsif Buf (Orig) = '"' or else Buf (Orig) = '%' then
510 exit when Buf (P) = Buf (Orig);
513 return String (Buf (Orig .. P));
515 -- Entity is identifier
521 if Is_Start_Of_Wide_Char (Buf, P) then
522 Scan_Wide (Buf, P, WC, Err);
523 elsif not Identifier_Char (Buf (P)) then
530 -- Write out the identifier by copying the exact source characters
531 -- used in its declaration. Note that this means wide characters will
532 -- be in their original encoded form.
534 return String (Buf (Orig .. P - 1));
536 end Exact_Source_Name;
538 ----------------------------
539 -- Entity_Is_In_Main_Unit --
540 ----------------------------
542 function Entity_Is_In_Main_Unit (E : Entity_Id) return Boolean is
548 while S /= Standard_Standard loop
549 if S = Main_Unit_Entity then
551 elsif Ekind (S) = E_Package and then Is_Child_Unit (S) then
559 end Entity_Is_In_Main_Unit;
561 --------------------------
562 -- Generic_May_Lack_ALI --
563 --------------------------
565 function Generic_May_Lack_ALI (Sfile : File_Name_Type) return Boolean is
567 -- We allow internal generic units to be used without having a
568 -- corresponding ALI files to help bootstrapping with older compilers
569 -- that did not support generating ALIs for such generics. It is safe
570 -- to do so because the only thing the generated code would contain
571 -- is the elaboration boolean, and we are careful to elaborate all
572 -- predefined units first anyway.
574 return Is_Internal_File_Name
576 Renamings_Included => True);
577 end Generic_May_Lack_ALI;
579 -----------------------------
580 -- Get_Code_Or_Source_Unit --
581 -----------------------------
583 function Get_Code_Or_Source_Unit
585 Unwind_Instances : Boolean) return Unit_Number_Type
588 -- Search table unless we have No_Location, which can happen if the
589 -- relevant location has not been set yet. Happens for example when
590 -- we obtain Sloc (Cunit (Main_Unit)) before it is set.
592 if S /= No_Location then
594 Source_File : Source_File_Index;
595 Source_Unit : Unit_Number_Type;
598 Source_File := Get_Source_File_Index (S);
600 if Unwind_Instances then
601 while Template (Source_File) /= No_Source_File loop
602 Source_File := Template (Source_File);
606 Source_Unit := Unit (Source_File);
608 if Source_Unit /= No_Unit then
614 -- If S was No_Location, or was not in the table, we must be in the main
615 -- source unit (and the value has not been placed in the table yet),
616 -- or in one of the configuration pragma files.
619 end Get_Code_Or_Source_Unit;
625 function Get_Code_Unit (S : Source_Ptr) return Unit_Number_Type is
627 return Get_Code_Or_Source_Unit (Top_Level_Location (S),
628 Unwind_Instances => False);
631 function Get_Code_Unit (N : Node_Or_Entity_Id) return Unit_Number_Type is
633 return Get_Code_Unit (Sloc (N));
636 ----------------------------
637 -- Get_Compilation_Switch --
638 ----------------------------
640 function Get_Compilation_Switch (N : Pos) return String_Ptr is
642 if N <= Compilation_Switches.Last then
643 return Compilation_Switches.Table (N);
648 end Get_Compilation_Switch;
650 ----------------------------------
651 -- Get_Cunit_Entity_Unit_Number --
652 ----------------------------------
654 function Get_Cunit_Entity_Unit_Number
655 (E : Entity_Id) return Unit_Number_Type
658 for U in Units.First .. Units.Last loop
659 if Cunit_Entity (U) = E then
664 -- If not in the table, must be the main source unit, and we just
665 -- have not got it put into the table yet.
668 end Get_Cunit_Entity_Unit_Number;
670 ---------------------------
671 -- Get_Cunit_Unit_Number --
672 ---------------------------
674 function Get_Cunit_Unit_Number (N : Node_Id) return Unit_Number_Type is
676 for U in Units.First .. Units.Last loop
677 if Cunit (U) = N then
682 -- If not in the table, must be a spec created for a main unit that is a
683 -- child subprogram body which we have not inserted into the table yet.
685 if N = Library_Unit (Cunit (Main_Unit)) then
688 -- If it is anything else, something is seriously wrong, and we really
689 -- don't want to proceed, even if assertions are off, so we explicitly
690 -- raise an exception in this case to terminate compilation.
695 end Get_Cunit_Unit_Number;
697 ---------------------
698 -- Get_Source_Unit --
699 ---------------------
701 function Get_Source_Unit (S : Source_Ptr) return Unit_Number_Type is
703 return Get_Code_Or_Source_Unit (S, Unwind_Instances => True);
706 function Get_Source_Unit (N : Node_Or_Entity_Id) return Unit_Number_Type is
708 return Get_Source_Unit (Sloc (N));
711 --------------------------------
712 -- In_Extended_Main_Code_Unit --
713 --------------------------------
715 function In_Extended_Main_Code_Unit
716 (N : Node_Or_Entity_Id) return Boolean
719 if Sloc (N) = Standard_Location then
722 elsif Sloc (N) = No_Location then
725 -- Special case Itypes to test the Sloc of the associated node. The
726 -- reason we do this is for possible calls from gigi after -gnatD
727 -- processing is complete in sprint. This processing updates the
728 -- sloc fields of all nodes in the tree, but itypes are not in the
729 -- tree so their slocs do not get updated.
731 elsif Nkind (N) = N_Defining_Identifier
732 and then Is_Itype (N)
734 return In_Extended_Main_Code_Unit (Associated_Node_For_Itype (N));
736 -- Otherwise see if we are in the main unit
738 elsif Get_Code_Unit (Sloc (N)) = Get_Code_Unit (Cunit (Main_Unit)) then
741 -- Node may be in spec (or subunit etc) of main unit
745 In_Same_Extended_Unit (N, Cunit (Main_Unit));
747 end In_Extended_Main_Code_Unit;
749 function In_Extended_Main_Code_Unit (Loc : Source_Ptr) return Boolean is
751 if Loc = Standard_Location then
754 elsif Loc = No_Location then
757 -- Otherwise see if we are in the main unit
759 elsif Get_Code_Unit (Loc) = Get_Code_Unit (Cunit (Main_Unit)) then
762 -- Location may be in spec (or subunit etc) of main unit
766 In_Same_Extended_Unit (Loc, Sloc (Cunit (Main_Unit)));
768 end In_Extended_Main_Code_Unit;
770 ----------------------------------
771 -- In_Extended_Main_Source_Unit --
772 ----------------------------------
774 function In_Extended_Main_Source_Unit
775 (N : Node_Or_Entity_Id) return Boolean
777 Nloc : constant Source_Ptr := Sloc (N);
778 Mloc : constant Source_Ptr := Sloc (Cunit (Main_Unit));
781 -- If parsing, then use the global flag to indicate result
783 if Compiler_State = Parsing then
784 return Parsing_Main_Extended_Source;
786 -- Special value cases
788 elsif Nloc = Standard_Location then
791 elsif Nloc = No_Location then
794 -- Special case Itypes to test the Sloc of the associated node. The
795 -- reason we do this is for possible calls from gigi after -gnatD
796 -- processing is complete in sprint. This processing updates the
797 -- sloc fields of all nodes in the tree, but itypes are not in the
798 -- tree so their slocs do not get updated.
800 elsif Nkind (N) = N_Defining_Identifier
801 and then Is_Itype (N)
803 return In_Extended_Main_Source_Unit (Associated_Node_For_Itype (N));
805 -- Otherwise compare original locations to see if in same unit
809 In_Same_Extended_Unit
810 (Original_Location (Nloc), Original_Location (Mloc));
812 end In_Extended_Main_Source_Unit;
814 function In_Extended_Main_Source_Unit
815 (Loc : Source_Ptr) return Boolean
817 Mloc : constant Source_Ptr := Sloc (Cunit (Main_Unit));
820 -- If parsing, then use the global flag to indicate result
822 if Compiler_State = Parsing then
823 return Parsing_Main_Extended_Source;
825 -- Special value cases
827 elsif Loc = Standard_Location then
830 elsif Loc = No_Location then
833 -- Otherwise compare original locations to see if in same unit
837 In_Same_Extended_Unit
838 (Original_Location (Loc), Original_Location (Mloc));
840 end In_Extended_Main_Source_Unit;
842 ------------------------
843 -- In_Predefined_Unit --
844 ------------------------
846 function In_Predefined_Unit (N : Node_Or_Entity_Id) return Boolean is
848 return In_Predefined_Unit (Sloc (N));
849 end In_Predefined_Unit;
851 function In_Predefined_Unit (S : Source_Ptr) return Boolean is
852 Unit : constant Unit_Number_Type := Get_Source_Unit (S);
853 File : constant File_Name_Type := Unit_File_Name (Unit);
855 return Is_Predefined_File_Name (File);
856 end In_Predefined_Unit;
858 -----------------------
859 -- In_Same_Code_Unit --
860 -----------------------
862 function In_Same_Code_Unit (N1, N2 : Node_Or_Entity_Id) return Boolean is
863 S1 : constant Source_Ptr := Sloc (N1);
864 S2 : constant Source_Ptr := Sloc (N2);
867 if S1 = No_Location or else S2 = No_Location then
870 elsif S1 = Standard_Location then
871 return S2 = Standard_Location;
873 elsif S2 = Standard_Location then
877 return Get_Code_Unit (N1) = Get_Code_Unit (N2);
878 end In_Same_Code_Unit;
880 ---------------------------
881 -- In_Same_Extended_Unit --
882 ---------------------------
884 function In_Same_Extended_Unit
885 (N1, N2 : Node_Or_Entity_Id) return Boolean
888 return Check_Same_Extended_Unit (Sloc (N1), Sloc (N2)) /= No;
889 end In_Same_Extended_Unit;
891 function In_Same_Extended_Unit (S1, S2 : Source_Ptr) return Boolean is
893 return Check_Same_Extended_Unit (S1, S2) /= No;
894 end In_Same_Extended_Unit;
896 -------------------------
897 -- In_Same_Source_Unit --
898 -------------------------
900 function In_Same_Source_Unit (N1, N2 : Node_Or_Entity_Id) return Boolean is
901 S1 : constant Source_Ptr := Sloc (N1);
902 S2 : constant Source_Ptr := Sloc (N2);
905 if S1 = No_Location or else S2 = No_Location then
908 elsif S1 = Standard_Location then
909 return S2 = Standard_Location;
911 elsif S2 = Standard_Location then
915 return Get_Source_Unit (N1) = Get_Source_Unit (N2);
916 end In_Same_Source_Unit;
918 -----------------------------
919 -- Increment_Serial_Number --
920 -----------------------------
922 function Increment_Serial_Number return Nat is
923 TSN : Int renames Units.Table (Current_Sem_Unit).Serial_Number;
927 end Increment_Serial_Number;
933 procedure Initialize is
935 Linker_Option_Lines.Init;
939 Compilation_Switches.Init;
946 function Is_Loaded (Uname : Unit_Name_Type) return Boolean is
948 for Unum in Units.First .. Units.Last loop
949 if Uname = Unit_Name (Unum) then
961 function Last_Unit return Unit_Number_Type is
970 procedure List (File_Names_Only : Boolean := False) is separate;
978 Linker_Option_Lines.Locked := True;
979 Load_Stack.Locked := True;
980 Units.Locked := True;
981 Linker_Option_Lines.Release;
990 function Num_Units return Nat is
992 return Int (Units.Last) - Int (Main_Unit) + 1;
999 procedure Remove_Unit (U : Unit_Number_Type) is
1001 if U = Units.Last then
1002 Units.Decrement_Last;
1006 ----------------------------------
1007 -- Replace_Linker_Option_String --
1008 ----------------------------------
1010 procedure Replace_Linker_Option_String
1011 (S : String_Id; Match_String : String)
1014 if Match_String'Length > 0 then
1015 for J in 1 .. Linker_Option_Lines.Last loop
1016 String_To_Name_Buffer (Linker_Option_Lines.Table (J).Option);
1018 if Match_String = Name_Buffer (1 .. Match_String'Length) then
1019 Linker_Option_Lines.Table (J).Option := S;
1025 Store_Linker_Option_String (S);
1026 end Replace_Linker_Option_String;
1032 procedure Sort (Tbl : in out Unit_Ref_Table) is separate;
1034 ------------------------------
1035 -- Store_Compilation_Switch --
1036 ------------------------------
1038 procedure Store_Compilation_Switch (Switch : String) is
1040 if Switch_Storing_Enabled then
1041 Compilation_Switches.Increment_Last;
1042 Compilation_Switches.Table (Compilation_Switches.Last) :=
1043 new String'(Switch);
1045 -- Fix up --RTS flag which has been transformed by the gcc driver
1048 if Switch'Last >= Switch'First + 4
1049 and then Switch (Switch'First .. Switch'First + 4) = "-fRTS"
1051 Compilation_Switches.Table
1052 (Compilation_Switches.Last) (Switch'First + 1) := '-';
1055 end Store_Compilation_Switch;
1057 --------------------------------
1058 -- Store_Linker_Option_String --
1059 --------------------------------
1061 procedure Store_Linker_Option_String (S : String_Id) is
1063 Linker_Option_Lines.Append ((Option => S, Unit => Current_Sem_Unit));
1064 end Store_Linker_Option_String;
1070 procedure Store_Note (N : Node_Id) is
1072 Notes.Append ((Pragma_Node => N, Unit => Current_Sem_Unit));
1075 -------------------------------
1076 -- Synchronize_Serial_Number --
1077 -------------------------------
1079 procedure Synchronize_Serial_Number is
1080 TSN : Int renames Units.Table (Current_Sem_Unit).Serial_Number;
1083 end Synchronize_Serial_Number;
1089 procedure Tree_Read is
1096 -- Read Compilation_Switches table. First release the memory occupied
1097 -- by the previously loaded switches.
1099 for J in Compilation_Switches.First .. Compilation_Switches.Last loop
1100 Free (Compilation_Switches.Table (J));
1104 Compilation_Switches.Set_Last (N);
1106 for J in 1 .. N loop
1108 Compilation_Switches.Table (J) := S;
1116 procedure Tree_Write is
1120 -- Write Compilation_Switches table
1122 Tree_Write_Int (Compilation_Switches.Last);
1124 for J in 1 .. Compilation_Switches.Last loop
1125 Tree_Write_Str (Compilation_Switches.Table (J));
1135 Linker_Option_Lines.Locked := False;
1136 Load_Stack.Locked := False;
1137 Units.Locked := False;
1144 function Version_Get (U : Unit_Number_Type) return Word_Hex_String is
1146 return Get_Hex_String (Units.Table (U).Version);
1149 ------------------------
1150 -- Version_Referenced --
1151 ------------------------
1153 procedure Version_Referenced (S : String_Id) is
1155 Version_Ref.Append (S);
1156 end Version_Referenced;