1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2013, 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 Debug
; use Debug
;
30 with Einfo
; use Einfo
;
31 with Errout
; use Errout
;
32 with Fname
; use Fname
;
33 with Fname
.UF
; use Fname
.UF
;
34 with Lib
.Util
; use Lib
.Util
;
35 with Lib
.Xref
; use Lib
.Xref
;
36 with Nlists
; use Nlists
;
37 with Gnatvsn
; use Gnatvsn
;
39 with Osint
; use Osint
;
40 with Osint
.C
; use Osint
.C
;
42 with Par_SCO
; use Par_SCO
;
43 with Restrict
; use Restrict
;
44 with Rident
; use Rident
;
46 with Sinfo
; use Sinfo
;
47 with Sinput
; use Sinput
;
48 with Snames
; use Snames
;
49 with Stringt
; use Stringt
;
50 with Tbuild
; use Tbuild
;
51 with Uname
; use Uname
;
53 with System
.Case_Util
; use System
.Case_Util
;
54 with System
.WCh_Con
; use System
.WCh_Con
;
56 package body Lib
.Writ
is
58 -----------------------
59 -- Local Subprograms --
60 -----------------------
62 procedure Write_Unit_Name
(N
: Node_Id
);
63 -- Used to write out the unit name for R (pragma Restriction) lines
64 -- for uses of Restriction (No_Dependence => unit-name).
66 ----------------------------------
67 -- Add_Preprocessing_Dependency --
68 ----------------------------------
70 procedure Add_Preprocessing_Dependency
(S
: Source_File_Index
) is
73 Units
.Table
(Units
.Last
) :=
74 (Unit_File_Name
=> File_Name
(S
),
75 Unit_Name
=> No_Unit_Name
,
76 Expected_Unit
=> No_Unit_Name
,
79 Cunit_Entity
=> Empty
,
81 Dynamic_Elab
=> False,
83 Generate_Code
=> False,
84 Has_Allocator
=> False,
86 Is_Compiler_Unit
=> False,
87 Ident_String
=> Empty
,
94 Error_Location
=> No_Location
,
96 end Add_Preprocessing_Dependency
;
98 ------------------------------
99 -- Ensure_System_Dependency --
100 ------------------------------
102 procedure Ensure_System_Dependency
is
103 System_Uname
: Unit_Name_Type
;
104 -- Unit name for system spec if needed for dummy entry
106 System_Fname
: File_Name_Type
;
107 -- File name for system spec if needed for dummy entry
110 -- Nothing to do if we already compiled System
112 for Unum
in Units
.First
.. Last_Unit
loop
113 if Units
.Table
(Unum
).Source_Index
= System_Source_File_Index
then
118 -- If no entry for system.ads in the units table, then add a entry
119 -- to the units table for system.ads, which will be referenced when
120 -- the ali file is generated. We need this because every unit depends
121 -- on system as a result of Targparm scanning the system.ads file to
122 -- determine the target dependent parameters for the compilation.
125 Name_Buffer
(1 .. 6) := "system";
126 System_Uname
:= Name_To_Unit_Name
(Name_Enter
);
127 System_Fname
:= File_Name
(System_Source_File_Index
);
129 Units
.Increment_Last
;
130 Units
.Table
(Units
.Last
) := (
131 Unit_File_Name
=> System_Fname
,
132 Unit_Name
=> System_Uname
,
133 Expected_Unit
=> System_Uname
,
134 Source_Index
=> System_Source_File_Index
,
136 Cunit_Entity
=> Empty
,
138 Dynamic_Elab
=> False,
139 Fatal_Error
=> False,
140 Generate_Code
=> False,
141 Has_Allocator
=> False,
143 Is_Compiler_Unit
=> False,
144 Ident_String
=> Empty
,
151 Error_Location
=> No_Location
,
154 -- Parse system.ads so that the checksum is set right
155 -- Style checks are not applied.
158 Save_Mindex
: constant Nat
:= Multiple_Unit_Index
;
159 Save_Style
: constant Boolean := Style_Check
;
161 Multiple_Unit_Index
:= 0;
162 Style_Check
:= False;
163 Initialize_Scanner
(Units
.Last
, System_Source_File_Index
);
164 Discard_List
(Par
(Configuration_Pragmas
=> False));
165 Style_Check
:= Save_Style
;
166 Multiple_Unit_Index
:= Save_Mindex
;
168 end Ensure_System_Dependency
;
174 procedure Write_ALI
(Object
: Boolean) is
180 Last_Unit
: constant Unit_Number_Type
:= Units
.Last
;
181 -- Record unit number of last unit. We capture this in case we
182 -- have to add a dummy entry to the unit table for package System.
184 With_Flags
: array (Units
.First
.. Last_Unit
) of Boolean;
185 -- Array of flags to show which units are with'ed
187 Elab_Flags
: array (Units
.First
.. Last_Unit
) of Boolean;
188 -- Array of flags to show which units have pragma Elaborate set
190 Elab_All_Flags
: array (Units
.First
.. Last_Unit
) of Boolean;
191 -- Array of flags to show which units have pragma Elaborate All set
193 Elab_Des_Flags
: array (Units
.First
.. Last_Unit
) of Boolean;
194 -- Array of flags to show which units have Elaborate_Desirable set
196 Elab_All_Des_Flags
: array (Units
.First
.. Last_Unit
) of Boolean;
197 -- Array of flags to show which units have Elaborate_All_Desirable set
199 type Yes_No
is (Unknown
, Yes
, No
);
200 Implicit_With
: array (Units
.First
.. Last_Unit
) of Yes_No
;
201 -- Indicates if an implicit with has been given for the unit. Yes if
202 -- certainly present, no if certainly absent, unkonwn if not known.
204 Sdep_Table
: Unit_Ref_Table
(1 .. Pos
(Last_Unit
- Units
.First
+ 2));
205 -- Sorted table of source dependencies. One extra entry in case we
206 -- have to add a dummy entry for System.
209 -- Number of active entries in Sdep_Table
211 flag_compare_debug
: Int
;
212 pragma Import
(C
, flag_compare_debug
);
213 -- Import from toplev.c
215 -----------------------
216 -- Local Subprograms --
217 -----------------------
219 procedure Collect_Withs
(Cunit
: Node_Id
);
220 -- Collect with lines for entries in the context clause of the
221 -- given compilation unit, Cunit.
223 procedure Update_Tables_From_ALI_File
;
224 -- Given an up to date ALI file (see Up_To_Date_ALI_file_Exists
225 -- function), update tables from the ALI information, including
226 -- specifically the Compilation_Switches table.
228 function Up_To_Date_ALI_File_Exists
return Boolean;
229 -- If there exists an ALI file that is up to date, then this function
230 -- initializes the tables in the ALI spec to contain information on
231 -- this file (using Scan_ALI) and returns True. If no file exists,
232 -- or the file is not up to date, then False is returned.
234 procedure Write_Unit_Information
(Unit_Num
: Unit_Number_Type
);
235 -- Write out the library information for one unit for which code is
236 -- generated (includes unit line and with lines).
238 procedure Write_With_Lines
;
239 -- Write out with lines collected by calls to Collect_Withs
245 procedure Collect_Withs
(Cunit
: Node_Id
) is
247 Unum
: Unit_Number_Type
;
250 Item
:= First
(Context_Items
(Cunit
));
251 while Present
(Item
) loop
253 -- Process with clause
255 -- Ada 2005 (AI-50217): limited with_clauses do not create
256 -- dependencies, but must be recorded as components of the
257 -- partition, in case there is no regular with_clause for
258 -- the unit anywhere else.
260 if Nkind
(Item
) = N_With_Clause
then
261 Unum
:= Get_Cunit_Unit_Number
(Library_Unit
(Item
));
262 With_Flags
(Unum
) := True;
264 if not Limited_Present
(Item
) then
265 if Elaborate_Present
(Item
) then
266 Elab_Flags
(Unum
) := True;
269 if Elaborate_All_Present
(Item
) then
270 Elab_All_Flags
(Unum
) := True;
273 if Elaborate_All_Desirable
(Item
) then
274 Elab_All_Des_Flags
(Unum
) := True;
277 if Elaborate_Desirable
(Item
) then
278 Elab_Des_Flags
(Unum
) := True;
282 Set_From_With_Type
(Cunit_Entity
(Unum
));
285 if Implicit_With
(Unum
) /= Yes
then
286 if Implicit_With_From_Instantiation
(Item
) then
287 Implicit_With
(Unum
) := Yes
;
289 Implicit_With
(Unum
) := No
;
298 --------------------------------
299 -- Up_To_Date_ALI_File_Exists --
300 --------------------------------
302 function Up_To_Date_ALI_File_Exists
return Boolean is
303 Name
: File_Name_Type
;
304 Text
: Text_Buffer_Ptr
;
306 Sind
: Source_File_Index
;
309 Opt
.Check_Object_Consistency
:= True;
310 Read_Library_Info
(Name
, Text
);
312 -- Return if we could not find an ALI file
318 -- Return if ALI file has bad format
322 if Scan_ALI
(Name
, Text
, False, Err
=> True) = No_ALI_Id
then
326 -- If we have an OK ALI file, check if it is up to date
327 -- Note that we assume that the ALI read has all the entries
328 -- we have in our table, plus some additional ones (that can
329 -- come from expansion).
331 Id
:= First_Sdep_Entry
;
332 for J
in 1 .. Num_Sdep
loop
333 Sind
:= Units
.Table
(Sdep_Table
(J
)).Source_Index
;
335 while Sdep
.Table
(Id
).Sfile
/= File_Name
(Sind
) loop
336 if Id
= Sdep
.Last
then
343 if Sdep
.Table
(Id
).Stamp
/= Time_Stamp
(Sind
) then
349 end Up_To_Date_ALI_File_Exists
;
351 ---------------------------------
352 -- Update_Tables_From_ALI_File --
353 ---------------------------------
355 procedure Update_Tables_From_ALI_File
is
357 -- Build Compilation_Switches table
359 Compilation_Switches
.Init
;
361 for J
in First_Arg_Entry
.. Args
.Last
loop
362 Compilation_Switches
.Increment_Last
;
363 Compilation_Switches
.Table
(Compilation_Switches
.Last
) :=
366 end Update_Tables_From_ALI_File
;
368 ----------------------------
369 -- Write_Unit_Information --
370 ----------------------------
372 procedure Write_Unit_Information
(Unit_Num
: Unit_Number_Type
) is
373 Unode
: constant Node_Id
:= Cunit
(Unit_Num
);
374 Ukind
: constant Node_Kind
:= Nkind
(Unit
(Unode
));
375 Uent
: constant Entity_Id
:= Cunit_Entity
(Unit_Num
);
379 Write_Info_Initiate
('U');
380 Write_Info_Char
(' ');
381 Write_Info_Name
(Unit_Name
(Unit_Num
));
383 Write_Info_Name
(Unit_File_Name
(Unit_Num
));
386 Write_Info_Str
(Version_Get
(Unit_Num
));
388 -- Add BD parameter if Elaborate_Body pragma desirable
390 if Ekind
(Uent
) = E_Package
391 and then Elaborate_Body_Desirable
(Uent
)
393 Write_Info_Str
(" BD");
396 -- Add BN parameter if body needed for SAL
398 if (Is_Subprogram
(Uent
)
399 or else Ekind
(Uent
) = E_Package
400 or else Is_Generic_Unit
(Uent
))
401 and then Body_Needed_For_SAL
(Uent
)
403 Write_Info_Str
(" BN");
406 if Dynamic_Elab
(Unit_Num
) then
407 Write_Info_Str
(" DE");
410 -- Set the Elaborate_Body indication if either an explicit pragma
411 -- was present, or if this is an instantiation.
413 if Has_Pragma_Elaborate_Body
(Uent
)
414 or else (Ukind
= N_Package_Declaration
415 and then Is_Generic_Instance
(Uent
)
416 and then Present
(Corresponding_Body
(Unit
(Unode
))))
418 Write_Info_Str
(" EB");
421 -- Now see if we should tell the binder that an elaboration entity
422 -- is present, which must be set to true during elaboration.
423 -- We generate the indication if the following condition is met:
425 -- If this is a spec ...
427 if (Is_Subprogram
(Uent
)
429 Ekind
(Uent
) = E_Package
431 Is_Generic_Unit
(Uent
))
433 -- and an elaboration entity was declared ...
435 and then Present
(Elaboration_Entity
(Uent
))
437 -- and either the elaboration flag is required ...
440 (Elaboration_Entity_Required
(Uent
)
442 -- or this unit has elaboration code ...
444 or else not Has_No_Elaboration_Code
(Unode
)
446 -- or this unit has a separate body and this
447 -- body has elaboration code.
450 (Ekind
(Uent
) = E_Package
451 and then Present
(Body_Entity
(Uent
))
453 not Has_No_Elaboration_Code
456 (Body_Entity
(Uent
))))))
458 if Convention
(Uent
) = Convention_CIL
then
460 -- Special case for generic CIL packages which never have
463 Write_Info_Str
(" NE");
466 Write_Info_Str
(" EE");
470 if Has_No_Elaboration_Code
(Unode
) then
471 Write_Info_Str
(" NE");
474 Write_Info_Str
(" O");
475 Write_Info_Char
(OA_Setting
(Unit_Num
));
477 if Ekind_In
(Uent
, E_Package
, E_Package_Body
)
478 and then Present
(Finalizer
(Uent
))
480 Write_Info_Str
(" PF");
483 if Is_Preelaborated
(Uent
) then
484 Write_Info_Str
(" PR");
487 if Is_Pure
(Uent
) then
488 Write_Info_Str
(" PU");
491 if Has_RACW
(Unit_Num
) then
492 Write_Info_Str
(" RA");
495 if Is_Remote_Call_Interface
(Uent
) then
496 Write_Info_Str
(" RC");
499 if Is_Remote_Types
(Uent
) then
500 Write_Info_Str
(" RT");
503 if Is_Shared_Passive
(Uent
) then
504 Write_Info_Str
(" SP");
507 if Ukind
= N_Subprogram_Declaration
508 or else Ukind
= N_Subprogram_Body
510 Write_Info_Str
(" SU");
512 elsif Ukind
= N_Package_Declaration
514 Ukind
= N_Package_Body
516 -- If this is a wrapper package for a subprogram instantiation,
517 -- the user view is the subprogram. Note that in this case the
518 -- ali file contains both the spec and body of the instance.
520 if Is_Wrapper_Package
(Uent
) then
521 Write_Info_Str
(" SU");
523 Write_Info_Str
(" PK");
526 elsif Ukind
= N_Generic_Package_Declaration
then
527 Write_Info_Str
(" PK");
531 if Ukind
in N_Generic_Declaration
533 (Present
(Library_Unit
(Unode
))
535 Nkind
(Unit
(Library_Unit
(Unode
))) in N_Generic_Declaration
)
537 Write_Info_Str
(" GE");
540 if not Is_Internal_File_Name
(Unit_File_Name
(Unit_Num
), True) then
541 case Identifier_Casing
(Source_Index
(Unit_Num
)) is
542 when All_Lower_Case
=> Write_Info_Str
(" IL");
543 when All_Upper_Case
=> Write_Info_Str
(" IU");
547 case Keyword_Casing
(Source_Index
(Unit_Num
)) is
548 when Mixed_Case
=> Write_Info_Str
(" KM");
549 when All_Upper_Case
=> Write_Info_Str
(" KU");
554 if Initialize_Scalars
or else Invalid_Value_Used
then
555 Write_Info_Str
(" IS");
560 -- Generate with lines, first those that are directly with'ed
562 for J
in With_Flags
'Range loop
563 With_Flags
(J
) := False;
564 Elab_Flags
(J
) := False;
565 Elab_All_Flags
(J
) := False;
566 Elab_Des_Flags
(J
) := False;
567 Elab_All_Des_Flags
(J
) := False;
568 Implicit_With
(J
) := Unknown
;
571 Collect_Withs
(Unode
);
573 -- For a body, we must also check for any subunits which belong to
574 -- it and which have context clauses of their own, since these
575 -- with'ed units are part of its own elaboration dependencies.
577 if Nkind
(Unit
(Unode
)) in N_Unit_Body
then
578 for S
in Units
.First
.. Last_Unit
loop
580 -- We are only interested in subunits.
581 -- For preproc. data and def. files, Cunit is Empty, so
582 -- we need to test that first.
584 if Cunit
(S
) /= Empty
585 and then Nkind
(Unit
(Cunit
(S
))) = N_Subunit
587 Pnode
:= Library_Unit
(Cunit
(S
));
589 -- In gnatc mode, the errors in the subunits will not
590 -- have been recorded, but the analysis of the subunit
591 -- may have failed. There is no information to add to
592 -- ALI file in this case.
598 -- Find ultimate parent of the subunit
600 while Nkind
(Unit
(Pnode
)) = N_Subunit
loop
601 Pnode
:= Library_Unit
(Pnode
);
604 -- See if it belongs to current unit, and if so, include
607 if Pnode
= Unode
then
608 Collect_Withs
(Cunit
(S
));
616 -- Output linker option lines
618 for J
in 1 .. Linker_Option_Lines
.Last
loop
620 S
: Linker_Option_Entry
renames Linker_Option_Lines
.Table
(J
);
622 if S
.Unit
= Unit_Num
then
623 Write_Info_Initiate
('L');
624 Write_Info_Char
(' ');
625 Write_Info_Slit
(S
.Option
);
633 for J
in 1 .. Notes
.Last
loop
635 N
: constant Node_Id
:= Notes
.Table
(J
).Pragma_Node
;
636 L
: constant Source_Ptr
:= Sloc
(N
);
637 U
: constant Unit_Number_Type
:= Notes
.Table
(J
).Unit
;
642 Write_Info_Initiate
('N');
643 Write_Info_Char
(' ');
645 case Chars
(Pragma_Identifier
(N
)) is
646 when Name_Annotate
=>
654 when Name_Subtitle
=>
661 Write_Info_Int
(Int
(Get_Logical_Line_Number
(L
)));
662 Write_Info_Char
(':');
663 Write_Info_Int
(Int
(Get_Column_Number
(L
)));
669 A
:= First
(Pragma_Argument_Associations
(N
));
670 while Present
(A
) loop
671 Write_Info_Char
(' ');
673 if Chars
(A
) /= No_Name
then
674 Write_Info_Name
(Chars
(A
));
675 Write_Info_Char
(':');
679 Expr
: constant Node_Id
:= Expression
(A
);
682 if Nkind
(Expr
) = N_Identifier
then
683 Write_Info_Name
(Chars
(Expr
));
685 elsif Nkind
(Expr
) = N_Integer_Literal
686 and then Is_Static_Expression
(Expr
)
688 Write_Info_Uint
(Intval
(Expr
));
690 elsif Nkind
(Expr
) = N_String_Literal
691 and then Is_Static_Expression
(Expr
)
693 Write_Info_Slit
(Strval
(Expr
));
696 Write_Info_Str
("<expr>");
708 end Write_Unit_Information
;
710 ----------------------
711 -- Write_With_Lines --
712 ----------------------
714 procedure Write_With_Lines
is
715 With_Table
: Unit_Ref_Table
(1 .. Pos
(Last_Unit
- Units
.First
+ 1));
716 Num_Withs
: Int
:= 0;
717 Unum
: Unit_Number_Type
;
719 Uname
: Unit_Name_Type
;
720 Fname
: File_Name_Type
;
721 Pname
: constant Unit_Name_Type
:=
722 Get_Parent_Spec_Name
(Unit_Name
(Main_Unit
));
723 Body_Fname
: File_Name_Type
;
726 procedure Write_With_File_Names
727 (Nam
: in out File_Name_Type
;
729 -- Write source file name Nam and ALI file name for unit index Idx.
730 -- Possibly change Nam to lowercase (generating a new file name).
732 --------------------------
733 -- Write_With_File_Name --
734 --------------------------
736 procedure Write_With_File_Names
737 (Nam
: in out File_Name_Type
;
741 if not File_Names_Case_Sensitive
then
742 Get_Name_String
(Nam
);
743 To_Lower
(Name_Buffer
(1 .. Name_Len
));
747 Write_Info_Name
(Nam
);
749 Write_Info_Name
(Lib_File_Name
(Nam
, Idx
));
750 end Write_With_File_Names
;
752 -- Start of processing for Write_With_Lines
755 -- Loop to build the with table. A with on the main unit itself
756 -- is ignored (AARM 10.2(14a)). Such a with-clause can occur if
757 -- the main unit is a subprogram with no spec, and a subunit of
758 -- it unnecessarily withs the parent.
760 for J
in Units
.First
+ 1 .. Last_Unit
loop
762 -- Add element to with table if it is with'ed or if it is the
763 -- parent spec of the main unit (case of main unit is a child
764 -- unit). The latter with is not needed for semantic purposes,
765 -- but is required by the binder for elaboration purposes.
766 -- For preproc. data and def. files, there is no Unit_Name,
767 -- check for that first.
769 if Unit_Name
(J
) /= No_Unit_Name
770 and then (With_Flags
(J
) or else Unit_Name
(J
) = Pname
)
772 Num_Withs
:= Num_Withs
+ 1;
773 With_Table
(Num_Withs
) := J
;
777 -- Sort and output the table
779 Sort
(With_Table
(1 .. Num_Withs
));
781 for J
in 1 .. Num_Withs
loop
782 Unum
:= With_Table
(J
);
783 Cunit
:= Units
.Table
(Unum
).Cunit
;
784 Uname
:= Units
.Table
(Unum
).Unit_Name
;
785 Fname
:= Units
.Table
(Unum
).Unit_File_Name
;
787 if Implicit_With
(Unum
) = Yes
then
788 Write_Info_Initiate
('Z');
790 elsif Ekind
(Cunit_Entity
(Unum
)) = E_Package
791 and then From_With_Type
(Cunit_Entity
(Unum
))
793 Write_Info_Initiate
('Y');
796 Write_Info_Initiate
('W');
799 Write_Info_Char
(' ');
800 Write_Info_Name
(Uname
);
802 -- Now we need to figure out the names of the files that contain
803 -- the with'ed unit. These will usually be the files for the body,
804 -- except in the case of a package that has no body. Note that we
805 -- have a specific exemption here for predefined library generics
806 -- (see comments for Generic_May_Lack_ALI). We do not generate
807 -- dependency upon the ALI file for such units. Older compilers
808 -- used to not support generating code (and ALI) for generics, and
809 -- we want to avoid having different processing (namely, different
810 -- lists of files to be compiled) for different stages of the
813 if not ((Nkind
(Unit
(Cunit
)) in N_Generic_Declaration
815 Nkind
(Unit
(Cunit
)) in N_Generic_Renaming_Declaration
)
816 and then Generic_May_Lack_ALI
(Fname
))
818 -- In SPARK mode, always generate the dependencies on ALI
819 -- files, which are required to compute frame conditions
826 if Is_Spec_Name
(Uname
) then
829 (Get_Body_Name
(Uname
),
830 Subunit
=> False, May_Fail
=> True);
834 (Get_Body_Name
(Uname
));
836 if Body_Fname
= No_File
then
837 Body_Fname
:= Get_File_Name
(Uname
, Subunit
=> False);
838 Body_Index
:= Get_Unit_Index
(Uname
);
842 Body_Fname
:= Get_File_Name
(Uname
, Subunit
=> False);
843 Body_Index
:= Get_Unit_Index
(Uname
);
846 -- A package is considered to have a body if it requires
847 -- a body or if a body is present in Ada 83 mode.
849 if Body_Required
(Cunit
)
850 or else (Ada_Version
= Ada_83
851 and then Full_Source_Name
(Body_Fname
) /= No_File
)
853 Write_With_File_Names
(Body_Fname
, Body_Index
);
855 Write_With_File_Names
(Fname
, Munit_Index
(Unum
));
858 if Ekind
(Cunit_Entity
(Unum
)) = E_Package
859 and then From_With_Type
(Cunit_Entity
(Unum
))
863 if Elab_Flags
(Unum
) then
864 Write_Info_Str
(" E");
867 if Elab_All_Flags
(Unum
) then
868 Write_Info_Str
(" EA");
871 if Elab_Des_Flags
(Unum
) then
872 Write_Info_Str
(" ED");
875 if Elab_All_Des_Flags
(Unum
) then
876 Write_Info_Str
(" AD");
883 end Write_With_Lines
;
885 -- Start of processing for Write_ALI
888 -- We never write an ALI file if the original operating mode was
889 -- syntax-only (-gnats switch used in compiler invocation line)
891 if Original_Operating_Mode
= Check_Syntax
892 or flag_compare_debug
/= 0
897 -- Generation of ALI files may be disabled, e.g. for formal verification
900 if Disable_ALI_File
then
904 -- Build sorted source dependency table. We do this right away, because
905 -- it is referenced by Up_To_Date_ALI_File_Exists.
907 for Unum
in Units
.First
.. Last_Unit
loop
908 if Cunit_Entity
(Unum
) = Empty
909 or else not From_With_Type
(Cunit_Entity
(Unum
))
911 Num_Sdep
:= Num_Sdep
+ 1;
912 Sdep_Table
(Num_Sdep
) := Unum
;
916 -- Sort the table so that the D lines are in order
918 Lib
.Sort
(Sdep_Table
(1 .. Num_Sdep
));
920 -- If we are not generating code, and there is an up to date ALI file
921 -- file accessible, read it, and acquire the compilation arguments from
924 if Operating_Mode
/= Generate_Code
then
925 if Up_To_Date_ALI_File_Exists
then
926 Update_Tables_From_ALI_File
;
931 -- Otherwise acquire compilation arguments and prepare to write
932 -- out a new ali file.
934 Create_Output_Library_Info
;
936 -- Output version line
938 Write_Info_Initiate
('V');
939 Write_Info_Str
(" """);
940 Write_Info_Str
(Verbose_Library_Version
);
941 Write_Info_Char
('"');
945 -- Output main program line if this is acceptable main program
947 Output_Main_Program_Line
: declare
948 U
: Node_Id
:= Unit
(Units
.Table
(Main_Unit
).Cunit
);
951 procedure M_Parameters
;
952 -- Output parameters for main program line
958 procedure M_Parameters
is
960 if Main_Priority
(Main_Unit
) /= Default_Main_Priority
then
961 Write_Info_Char
(' ');
962 Write_Info_Nat
(Main_Priority
(Main_Unit
));
965 if Opt
.Time_Slice_Set
then
966 Write_Info_Str
(" T=");
967 Write_Info_Nat
(Opt
.Time_Slice_Value
);
970 if Has_Allocator
(Main_Unit
) then
971 Write_Info_Str
(" AB");
974 if Main_CPU
(Main_Unit
) /= Default_Main_CPU
then
975 Write_Info_Str
(" C=");
976 Write_Info_Nat
(Main_CPU
(Main_Unit
));
979 Write_Info_Str
(" W=");
981 (WC_Encoding_Letters
(Wide_Character_Encoding_Method
));
986 -- Start of processing for Output_Main_Program_Line
989 if Nkind
(U
) = N_Subprogram_Body
991 (Nkind
(U
) = N_Package_Body
993 Nkind
(Original_Node
(U
)) in N_Subprogram_Instantiation
)
995 -- If the unit is a subprogram instance, the entity for the
996 -- subprogram is the alias of the visible entity, which is the
997 -- related instance of the wrapper package. We retrieve the
998 -- subprogram declaration of the desired entity.
1000 if Nkind
(U
) = N_Package_Body
then
1001 U
:= Parent
(Parent
(
1002 Alias
(Related_Instance
(Defining_Unit_Name
1003 (Specification
(Unit
(Library_Unit
(Parent
(U
)))))))));
1006 S
:= Specification
(U
);
1008 -- A generic subprogram is never a main program
1010 if Nkind
(U
) = N_Subprogram_Body
1011 and then Present
(Corresponding_Spec
(U
))
1013 Ekind_In
(Corresponding_Spec
(U
),
1014 E_Generic_Procedure
, E_Generic_Function
)
1018 elsif No
(Parameter_Specifications
(S
)) then
1019 if Nkind
(S
) = N_Procedure_Specification
then
1020 Write_Info_Initiate
('M');
1021 Write_Info_Str
(" P");
1026 Nam
: Node_Id
:= Defining_Unit_Name
(S
);
1029 -- If it is a child unit, get its simple name
1031 if Nkind
(Nam
) = N_Defining_Program_Unit_Name
then
1032 Nam
:= Defining_Identifier
(Nam
);
1035 if Is_Integer_Type
(Etype
(Nam
)) then
1036 Write_Info_Initiate
('M');
1037 Write_Info_Str
(" F");
1044 end Output_Main_Program_Line
;
1046 -- Write command argument ('A') lines
1048 for A
in 1 .. Compilation_Switches
.Last
loop
1049 Write_Info_Initiate
('A');
1050 Write_Info_Char
(' ');
1051 Write_Info_Str
(Compilation_Switches
.Table
(A
).all);
1052 Write_Info_Terminate
;
1055 -- Output parameters ('P') line
1057 Write_Info_Initiate
('P');
1059 if Compilation_Errors
then
1060 Write_Info_Str
(" CE");
1063 if Opt
.Detect_Blocking
then
1064 Write_Info_Str
(" DB");
1067 if Opt
.Float_Format
/= ' ' then
1068 Write_Info_Str
(" F");
1070 if Opt
.Float_Format
= 'I' then
1071 Write_Info_Char
('I');
1073 elsif Opt
.Float_Format_Long
= 'D' then
1074 Write_Info_Char
('D');
1077 Write_Info_Char
('G');
1082 and then not Is_Predefined_File_Name
(Unit_File_Name
(Main_Unit
))
1084 if Locking_Policy
/= ' ' then
1085 Write_Info_Str
(" L");
1086 Write_Info_Char
(Locking_Policy
);
1089 if Queuing_Policy
/= ' ' then
1090 Write_Info_Str
(" Q");
1091 Write_Info_Char
(Queuing_Policy
);
1094 if Task_Dispatching_Policy
/= ' ' then
1095 Write_Info_Str
(" T");
1096 Write_Info_Char
(Task_Dispatching_Policy
);
1097 Write_Info_Char
(' ');
1101 if Partition_Elaboration_Policy
/= ' ' then
1102 Write_Info_Str
(" E");
1103 Write_Info_Char
(Partition_Elaboration_Policy
);
1107 Write_Info_Str
(" NO");
1110 if No_Run_Time_Mode
then
1111 Write_Info_Str
(" NR");
1114 if Normalize_Scalars
then
1115 Write_Info_Str
(" NS");
1118 if Sec_Stack_Used
then
1119 Write_Info_Str
(" SS");
1122 if Unreserve_All_Interrupts
then
1123 Write_Info_Str
(" UA");
1126 if Exception_Mechanism
= Back_End_Exceptions
then
1127 Write_Info_Str
(" ZX");
1132 -- Before outputting the restrictions line, update the setting of
1133 -- the No_Elaboration_Code flag. Violations of this restriction
1134 -- cannot be detected until after the backend has been called since
1135 -- it is the backend that sets this flag. We have to check all units
1136 -- for which we have generated code
1138 for Unit
in Units
.First
.. Last_Unit
loop
1139 if Units
.Table
(Unit
).Generate_Code
1140 or else Unit
= Main_Unit
1142 if not Has_No_Elaboration_Code
(Cunit
(Unit
)) then
1143 Main_Restrictions
.Violated
(No_Elaboration_Code
) := True;
1148 -- Positional case (only if debug flag -gnatd.R is set)
1150 if Debug_Flag_Dot_RR
then
1152 -- Output first restrictions line
1154 Write_Info_Initiate
('R');
1155 Write_Info_Char
(' ');
1157 -- First the information for the boolean restrictions
1159 for R
in All_Boolean_Restrictions
loop
1160 if Main_Restrictions
.Set
(R
)
1161 and then not Restriction_Warnings
(R
)
1163 Write_Info_Char
('r');
1164 elsif Main_Restrictions
.Violated
(R
) then
1165 Write_Info_Char
('v');
1167 Write_Info_Char
('n');
1171 -- And now the information for the parameter restrictions
1173 for RP
in All_Parameter_Restrictions
loop
1174 if Main_Restrictions
.Set
(RP
)
1175 and then not Restriction_Warnings
(RP
)
1177 Write_Info_Char
('r');
1178 Write_Info_Nat
(Nat
(Main_Restrictions
.Value
(RP
)));
1180 Write_Info_Char
('n');
1183 if not Main_Restrictions
.Violated
(RP
)
1184 or else RP
not in Checked_Parameter_Restrictions
1186 Write_Info_Char
('n');
1188 Write_Info_Char
('v');
1189 Write_Info_Nat
(Nat
(Main_Restrictions
.Count
(RP
)));
1191 if Main_Restrictions
.Unknown
(RP
) then
1192 Write_Info_Char
('+');
1199 -- Named case (if debug flag -gnatd.R is not set)
1206 -- Write RN header line with preceding blank line
1209 Write_Info_Initiate
('R');
1210 Write_Info_Char
('N');
1213 -- First the lines for the boolean restrictions
1215 for R
in All_Boolean_Restrictions
loop
1216 if Main_Restrictions
.Set
(R
)
1217 and then not Restriction_Warnings
(R
)
1220 elsif Main_Restrictions
.Violated
(R
) then
1226 Write_Info_Initiate
('R');
1227 Write_Info_Char
(C
);
1228 Write_Info_Char
(' ');
1229 Write_Info_Str
(All_Boolean_Restrictions
'Image (R
));
1237 -- And now the lines for the parameter restrictions
1239 for RP
in All_Parameter_Restrictions
loop
1240 if Main_Restrictions
.Set
(RP
)
1241 and then not Restriction_Warnings
(RP
)
1243 Write_Info_Initiate
('R');
1244 Write_Info_Str
("R ");
1245 Write_Info_Str
(All_Parameter_Restrictions
'Image (RP
));
1246 Write_Info_Char
('=');
1247 Write_Info_Nat
(Nat
(Main_Restrictions
.Value
(RP
)));
1251 if not Main_Restrictions
.Violated
(RP
)
1252 or else RP
not in Checked_Parameter_Restrictions
1256 Write_Info_Initiate
('R');
1257 Write_Info_Str
("V ");
1258 Write_Info_Str
(All_Parameter_Restrictions
'Image (RP
));
1259 Write_Info_Char
('=');
1260 Write_Info_Nat
(Nat
(Main_Restrictions
.Count
(RP
)));
1262 if Main_Restrictions
.Unknown
(RP
) then
1263 Write_Info_Char
('+');
1271 -- Output R lines for No_Dependence entries
1273 for J
in No_Dependences
.First
.. No_Dependences
.Last
loop
1274 if In_Extended_Main_Source_Unit
(No_Dependences
.Table
(J
).Unit
)
1275 and then not No_Dependences
.Table
(J
).Warn
1277 Write_Info_Initiate
('R');
1278 Write_Info_Char
(' ');
1279 Write_Unit_Name
(No_Dependences
.Table
(J
).Unit
);
1284 -- Output interrupt state lines
1286 for J
in Interrupt_States
.First
.. Interrupt_States
.Last
loop
1287 Write_Info_Initiate
('I');
1288 Write_Info_Char
(' ');
1289 Write_Info_Nat
(Interrupt_States
.Table
(J
).Interrupt_Number
);
1290 Write_Info_Char
(' ');
1291 Write_Info_Char
(Interrupt_States
.Table
(J
).Interrupt_State
);
1292 Write_Info_Char
(' ');
1294 (Nat
(Get_Logical_Line_Number
1295 (Interrupt_States
.Table
(J
).Pragma_Loc
)));
1299 -- Output priority specific dispatching lines
1301 for J
in Specific_Dispatching
.First
.. Specific_Dispatching
.Last
loop
1302 Write_Info_Initiate
('S');
1303 Write_Info_Char
(' ');
1304 Write_Info_Char
(Specific_Dispatching
.Table
(J
).Dispatching_Policy
);
1305 Write_Info_Char
(' ');
1306 Write_Info_Nat
(Specific_Dispatching
.Table
(J
).First_Priority
);
1307 Write_Info_Char
(' ');
1308 Write_Info_Nat
(Specific_Dispatching
.Table
(J
).Last_Priority
);
1309 Write_Info_Char
(' ');
1311 (Nat
(Get_Logical_Line_Number
1312 (Specific_Dispatching
.Table
(J
).Pragma_Loc
)));
1316 -- Loop through file table to output information for all units for which
1317 -- we have generated code, as marked by the Generate_Code flag.
1319 for Unit
in Units
.First
.. Last_Unit
loop
1320 if Units
.Table
(Unit
).Generate_Code
1321 or else Unit
= Main_Unit
1323 Write_Info_EOL
; -- blank line
1324 Write_Unit_Information
(Unit
);
1328 Write_Info_EOL
; -- blank line
1330 -- Output external version reference lines
1332 for J
in 1 .. Version_Ref
.Last
loop
1333 Write_Info_Initiate
('E');
1334 Write_Info_Char
(' ');
1336 for K
in 1 .. String_Length
(Version_Ref
.Table
(J
)) loop
1337 Write_Info_Char_Code
(Get_String_Char
(Version_Ref
.Table
(J
), K
));
1343 -- Prepare to output the source dependency lines
1346 Unum
: Unit_Number_Type
;
1347 -- Number of unit being output
1349 Sind
: Source_File_Index
;
1350 -- Index of corresponding source file
1352 Fname
: File_Name_Type
;
1355 for J
in 1 .. Num_Sdep
loop
1356 Unum
:= Sdep_Table
(J
);
1357 Units
.Table
(Unum
).Dependency_Num
:= J
;
1358 Sind
:= Units
.Table
(Unum
).Source_Index
;
1360 Write_Info_Initiate
('D');
1361 Write_Info_Char
(' ');
1363 -- Normal case of a unit entry with a source index
1365 if Sind
/= No_Source_File
then
1366 Fname
:= File_Name
(Sind
);
1368 -- Ensure that on platforms where the file names are not
1369 -- case sensitive, the recorded file name is in lower case.
1371 if not File_Names_Case_Sensitive
then
1372 Get_Name_String
(Fname
);
1373 To_Lower
(Name_Buffer
(1 .. Name_Len
));
1377 Write_Info_Name
(Fname
);
1378 Write_Info_Tab
(25);
1379 Write_Info_Str
(String (Time_Stamp
(Sind
)));
1380 Write_Info_Char
(' ');
1381 Write_Info_Str
(Get_Hex_String
(Source_Checksum
(Sind
)));
1383 -- If subunit, add unit name, omitting the %b at the end
1385 if Present
(Cunit
(Unum
))
1386 and then Nkind
(Unit
(Cunit
(Unum
))) = N_Subunit
1388 Get_Decoded_Name_String
(Unit_Name
(Unum
));
1389 Write_Info_Char
(' ');
1390 Write_Info_Str
(Name_Buffer
(1 .. Name_Len
- 2));
1393 -- If Source_Reference pragma used output information
1395 if Num_SRef_Pragmas
(Sind
) > 0 then
1396 Write_Info_Char
(' ');
1398 if Num_SRef_Pragmas
(Sind
) = 1 then
1399 Write_Info_Nat
(Int
(First_Mapped_Line
(Sind
)));
1404 Write_Info_Char
(':');
1405 Write_Info_Name
(Reference_Name
(Sind
));
1408 -- Case where there is no source index (happens for missing
1409 -- files). In this case we write a dummy time stamp.
1412 Write_Info_Name
(Unit_File_Name
(Unum
));
1413 Write_Info_Tab
(25);
1414 Write_Info_Str
(String (Dummy_Time_Stamp
));
1415 Write_Info_Char
(' ');
1416 Write_Info_Str
(Get_Hex_String
(0));
1423 -- Output cross-references
1425 if Opt
.Xref_Active
then
1429 -- Output SCO information if present
1431 if Generate_SCO
then
1435 -- Output SPARK cross-reference information if needed
1437 if Opt
.Xref_Active
and then SPARK_Mode
then
1438 SPARK_Specific
.Collect_SPARK_Xrefs
(Sdep_Table
=> Sdep_Table
,
1439 Num_Sdep
=> Num_Sdep
);
1440 SPARK_Specific
.Output_SPARK_Xrefs
;
1443 -- Output final blank line and we are done. This final blank line is
1444 -- probably junk, but we don't feel like making an incompatible change!
1446 Write_Info_Terminate
;
1447 Close_Output_Library_Info
;
1450 ---------------------
1451 -- Write_Unit_Name --
1452 ---------------------
1454 procedure Write_Unit_Name
(N
: Node_Id
) is
1456 if Nkind
(N
) = N_Identifier
then
1457 Write_Info_Name
(Chars
(N
));
1460 pragma Assert
(Nkind
(N
) = N_Selected_Component
);
1461 Write_Unit_Name
(Prefix
(N
));
1462 Write_Info_Char
('.');
1463 Write_Unit_Name
(Selector_Name
(N
));
1465 end Write_Unit_Name
;