1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 2004-2008, 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 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 Osint
; use Osint
;
28 with Output
; use Output
;
31 with Snames
; use Snames
;
34 with Ada
.Command_Line
; use Ada
.Command_Line
;
36 with GNAT
.Directory_Operations
; use GNAT
.Directory_Operations
;
38 with System
.Case_Util
; use System
.Case_Util
;
41 package body Makeutl
is
43 type Mark_Key
is record
44 File
: File_Name_Type
;
47 -- Identify either a mono-unit source (when Index = 0) or a specific unit
48 -- (index = 1's origin index of unit) in a multi-unit source.
50 -- There follow many global undocumented declarations, comments needed ???
52 Max_Mask_Num
: constant := 2048;
54 subtype Mark_Num
is Union_Id
range 0 .. Max_Mask_Num
- 1;
56 function Hash
(Key
: Mark_Key
) return Mark_Num
;
58 package Marks
is new System
.HTable
.Simple_HTable
59 (Header_Num
=> Mark_Num
,
65 -- A hash table to keep tracks of the marked units
67 type Linker_Options_Data
is record
69 Options
: String_List_Id
;
72 Linker_Option_Initial_Count
: constant := 20;
74 Linker_Options_Buffer
: String_List_Access
:=
75 new String_List
(1 .. Linker_Option_Initial_Count
);
77 Last_Linker_Option
: Natural := 0;
79 package Linker_Opts
is new Table
.Table
(
80 Table_Component_Type
=> Linker_Options_Data
,
81 Table_Index_Type
=> Integer,
84 Table_Increment
=> 100,
85 Table_Name
=> "Make.Linker_Opts");
87 procedure Add_Linker_Option
(Option
: String);
94 (Option
: String_Access
;
95 To
: in out String_List_Access
;
96 Last
: in out Natural)
99 if Last
= To
'Last then
101 New_Options
: constant String_List_Access
:=
102 new String_List
(1 .. To
'Last * 2);
104 New_Options
(To
'Range) := To
.all;
106 -- Set all elements of the original options to null to avoid
107 -- deallocation of copies.
109 To
.all := (others => null);
122 To
: in out String_List_Access
;
123 Last
: in out Natural)
126 Add
(Option
=> new String'(Option), To => To, Last => Last);
129 -----------------------
130 -- Add_Linker_Option --
131 -----------------------
133 procedure Add_Linker_Option (Option : String) is
135 if Option'Length > 0 then
136 if Last_Linker_Option = Linker_Options_Buffer'Last then
138 New_Buffer : constant String_List_Access :=
140 (1 .. Linker_Options_Buffer'Last +
141 Linker_Option_Initial_Count);
143 New_Buffer (Linker_Options_Buffer'Range) :=
144 Linker_Options_Buffer.all;
145 Linker_Options_Buffer.all := (others => null);
146 Free (Linker_Options_Buffer);
147 Linker_Options_Buffer := New_Buffer;
151 Last_Linker_Option := Last_Linker_Option + 1;
152 Linker_Options_Buffer (Last_Linker_Option) := new String'(Option
);
154 end Add_Linker_Option
;
160 function Create_Name
(Name
: String) return File_Name_Type
is
163 Add_Str_To_Name_Buffer
(Name
);
167 function Create_Name
(Name
: String) return Name_Id
is
170 Add_Str_To_Name_Buffer
(Name
);
174 function Create_Name
(Name
: String) return Path_Name_Type
is
177 Add_Str_To_Name_Buffer
(Name
);
181 ----------------------
182 -- Delete_All_Marks --
183 ----------------------
185 procedure Delete_All_Marks
is
188 end Delete_All_Marks
;
190 ----------------------------
191 -- Executable_Prefix_Path --
192 ----------------------------
194 function Executable_Prefix_Path
return String is
195 Exec_Name
: constant String := Command_Name
;
197 function Get_Install_Dir
(S
: String) return String;
198 -- S is the executable name preceded by the absolute or relative
199 -- path, e.g. "c:\usr\bin\gcc.exe". Returns the absolute directory
200 -- where "bin" lies (in the example "C:\usr").
201 -- If the executable is not in a "bin" directory, return "".
203 ---------------------
204 -- Get_Install_Dir --
205 ---------------------
207 function Get_Install_Dir
(S
: String) return String is
209 Path_Last
: Integer := 0;
212 for J
in reverse Exec
'Range loop
213 if Exec
(J
) = Directory_Separator
then
219 if Path_Last
>= Exec
'First + 2 then
220 To_Lower
(Exec
(Path_Last
- 2 .. Path_Last
));
223 if Path_Last
< Exec
'First + 2
224 or else Exec
(Path_Last
- 2 .. Path_Last
) /= "bin"
225 or else (Path_Last
- 3 >= Exec
'First
226 and then Exec
(Path_Last
- 3) /= Directory_Separator
)
231 return Normalize_Pathname
(Exec
(Exec
'First .. Path_Last
- 4));
234 -- Beginning of Executable_Prefix_Path
237 -- First determine if a path prefix was placed in front of the
240 for J
in reverse Exec_Name
'Range loop
241 if Exec_Name
(J
) = Directory_Separator
then
242 return Get_Install_Dir
(Exec_Name
);
246 -- If we get here, the user has typed the executable name with no
250 Path
: constant String_Access
:= Locate_Exec_On_Path
(Exec_Name
);
255 return Get_Install_Dir
(Path
.all);
258 end Executable_Prefix_Path
;
264 function Hash
(Key
: Mark_Key
) return Mark_Num
is
266 return Union_Id
(Key
.File
) mod Max_Mask_Num
;
273 procedure Inform
(N
: File_Name_Type
; Msg
: String) is
275 Inform
(Name_Id
(N
), Msg
);
278 procedure Inform
(N
: Name_Id
:= No_Name
; Msg
: String) is
280 Osint
.Write_Program_Name
;
288 Name
: constant String := Get_Name_String
(N
);
290 if Debug
.Debug_Flag_F
and then Is_Absolute_Path
(Name
) then
291 Write_Str
(File_Name
(Name
));
304 ----------------------------
305 -- Is_External_Assignment --
306 ----------------------------
308 function Is_External_Assignment
(Argv
: String) return Boolean is
309 Start
: Positive := 3;
310 Finish
: Natural := Argv
'Last;
313 pragma Assert
(Argv
'First = 1);
314 pragma Assert
(Argv
(1 .. 2) = "-X");
317 if Argv
'Last < 5 then
320 elsif Argv
(3) = '"' then
321 if Argv
(Argv
'Last) /= '"' or else Argv
'Last < 7 then
325 Finish
:= Argv
'Last - 1;
331 while Equal_Pos
<= Finish
and then Argv
(Equal_Pos
) /= '=' loop
332 Equal_Pos
:= Equal_Pos
+ 1;
336 or else Equal_Pos
> Finish
341 (External_Name
=> Argv
(Start
.. Equal_Pos
- 1),
342 Value
=> Argv
(Equal_Pos
+ 1 .. Finish
));
345 end Is_External_Assignment
;
352 (Source_File
: File_Name_Type
;
353 Index
: Int
:= 0) return Boolean
356 return Marks
.Get
(K
=> (File
=> Source_File
, Index
=> Index
));
359 -----------------------------
360 -- Linker_Options_Switches --
361 -----------------------------
363 function Linker_Options_Switches
364 (Project
: Project_Id
;
365 In_Tree
: Project_Tree_Ref
) return String_List
367 procedure Recursive_Add_Linker_Options
(Proj
: Project_Id
);
368 -- The recursive routine used to add linker options
370 ----------------------------------
371 -- Recursive_Add_Linker_Options --
372 ----------------------------------
374 procedure Recursive_Add_Linker_Options
(Proj
: Project_Id
) is
376 Linker_Package
: Package_Id
;
377 Options
: Variable_Value
;
378 Imported
: Project_List
;
381 if Proj
/= No_Project
then
382 Data
:= In_Tree
.Projects
.Table
(Proj
);
384 if not Data
.Seen
then
385 In_Tree
.Projects
.Table
(Proj
).Seen
:= True;
386 Imported
:= Data
.Imported_Projects
;
388 while Imported
/= Empty_Project_List
loop
389 Recursive_Add_Linker_Options
390 (In_Tree
.Project_Lists
.Table
392 Imported
:= In_Tree
.Project_Lists
.Table
396 if Proj
/= Project
then
399 (Name
=> Name_Linker
,
400 In_Packages
=> Data
.Decl
.Packages
,
406 Attribute_Or_Array_Name
=> Name_Linker_Options
,
407 In_Package
=> Linker_Package
,
410 -- If attribute is present, add the project with
411 -- the attribute to table Linker_Opts.
413 if Options
/= Nil_Variable_Value
then
414 Linker_Opts
.Increment_Last
;
415 Linker_Opts
.Table
(Linker_Opts
.Last
) :=
416 (Project
=> Proj
, Options
=> Options
.Values
);
421 end Recursive_Add_Linker_Options
;
423 -- Start of processing for Linker_Options_Switches
428 for Index
in Project_Table
.First
..
429 Project_Table
.Last
(In_Tree
.Projects
)
431 In_Tree
.Projects
.Table
(Index
).Seen
:= False;
434 Recursive_Add_Linker_Options
(Project
);
436 Last_Linker_Option
:= 0;
438 for Index
in reverse 1 .. Linker_Opts
.Last
loop
440 Options
: String_List_Id
:= Linker_Opts
.Table
(Index
).Options
;
441 Proj
: constant Project_Id
:=
442 Linker_Opts
.Table
(Index
).Project
;
446 -- If Dir_Path has not been computed for this project, do it now
448 if In_Tree
.Projects
.Table
(Proj
).Dir_Path
= null then
449 In_Tree
.Projects
.Table
(Proj
).Dir_Path
:=
452 (In_Tree.Projects.Table
453 (Proj).Directory.Name));
456 while Options /= Nil_String loop
458 In_Tree.String_Elements.Table (Options).Value;
459 Get_Name_String (Option);
461 -- Do not consider empty linker options
463 if Name_Len /= 0 then
464 Add_Linker_Option (Name_Buffer (1 .. Name_Len));
466 -- Object files and -L switches specified with relative
467 -- paths must be converted to absolute paths.
469 Test_If_Relative_Path
471 Linker_Options_Buffer (Last_Linker_Option),
473 In_Tree.Projects.Table (Proj).Dir_Path,
474 Including_L_Switch => True);
478 In_Tree.String_Elements.Table (Options).Next;
483 return Linker_Options_Buffer (1 .. Last_Linker_Option);
484 end Linker_Options_Switches;
490 package body Mains is
492 type File_And_Loc is record
493 File_Name : File_Name_Type;
494 Location : Source_Ptr := No_Location;
497 package Names is new Table.Table
498 (Table_Component_Type => File_And_Loc,
499 Table_Index_Type => Integer,
500 Table_Low_Bound => 1,
502 Table_Increment => 100,
503 Table_Name => "Makeutl.Mains.Names");
504 -- The table that stores the mains
506 Current : Natural := 0;
507 -- The index of the last main retrieved from the table
513 procedure Add_Main (Name : String) is
516 Add_Str_To_Name_Buffer (Name);
517 Names.Increment_Last;
518 Names.Table (Names.Last) := (Name_Find, No_Location);
535 function Get_Location return Source_Ptr is
537 if Current in Names.First .. Names.Last then
538 return Names.Table (Current).Location;
548 function Next_Main return String is
550 if Current >= Names.Last then
553 Current := Current + 1;
554 return Get_Name_String (Names.Table (Current).File_Name);
558 ---------------------
559 -- Number_Of_Mains --
560 ---------------------
562 function Number_Of_Mains return Natural is
580 procedure Set_Location (Location : Source_Ptr) is
582 if Names.Last > 0 then
583 Names.Table (Names.Last).Location := Location;
591 procedure Update_Main (Name : String) is
593 if Current in Names.First .. Names.Last then
595 Add_Str_To_Name_Buffer (Name);
596 Names.Table (Current).File_Name := Name_Find;
605 procedure Mark (Source_File : File_Name_Type; Index : Int := 0) is
607 Marks.Set (K => (File => Source_File, Index => Index), E => True);
610 -----------------------
611 -- Path_Or_File_Name --
612 -----------------------
614 function Path_Or_File_Name (Path : Path_Name_Type) return String is
615 Path_Name : constant String := Get_Name_String (Path);
617 if Debug.Debug_Flag_F then
618 return File_Name (Path_Name);
622 end Path_Or_File_Name;
624 ---------------------------
625 -- Test_If_Relative_Path --
626 ---------------------------
628 procedure Test_If_Relative_Path
629 (Switch : in out String_Access;
630 Parent : String_Access;
631 Including_L_Switch : Boolean := True;
632 Including_Non_Switch : Boolean := True)
635 if Switch /= null then
637 Sw : String (1 .. Switch'Length);
645 and then (Sw (2) = 'A
'
647 or else (Including_L_Switch and then Sw (2) = 'L
'))
656 and then (Sw (2 .. 3) = "aL"
657 or else Sw (2 .. 3) = "aO"
658 or else Sw (2 .. 3) = "aI")
666 -- Because relative path arguments to --RTS= may be relative
667 -- to the search directory prefix, those relative path
668 -- arguments are not converted.
670 if not Is_Absolute_Path (Sw (Start .. Sw'Last)) then
671 if Parent = null or else Parent'Length = 0 then
673 ("relative search path switches (""",
675 """) are not allowed");
680 (Sw
(1 .. Start
- 1) &
682 Directory_Separator
&
683 Sw
(Start
.. Sw
'Last));
687 elsif Including_Non_Switch
then
688 if not Is_Absolute_Path
(Sw
) then
689 if Parent
= null or else Parent
'Length = 0 then
691 ("relative paths (""", Sw
, """) are not allowed");
695 new String'(Parent.all & Directory_Separator & Sw);
701 end Test_If_Relative_Path;
707 function Unit_Index_Of (ALI_File : File_Name_Type) return Int is
713 Get_Name_String (ALI_File);
715 -- First, find the last dot
719 while Finish >= 1 and then Name_Buffer (Finish) /= '.' loop
720 Finish := Finish - 1;
727 -- Now check that the dot is preceded by digits
730 Finish := Finish - 1;
732 while Start >= 1 and then Name_Buffer (Start - 1) in '0' .. '9' loop
736 -- If there are no digits, or if the digits are not preceded by
737 -- the character that precedes a unit index, this is not the ALI file
738 -- of a unit in a multi-unit source.
742 or else Name_Buffer (Start - 1) /= Multi_Unit_Index_Character
747 -- Build the index from the digit(s)
749 while Start <= Finish loop
750 Result := Result * 10 +
751 Character'Pos (Name_Buffer (Start)) - Character'Pos ('0');