------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- M A K E U T L -- -- -- -- B o d y -- -- -- -- Copyright (C) 2004-2008, Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 3, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING3. If not, go to -- -- http://www.gnu.org/licenses for a complete copy of the license. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ with Debug; with Osint; use Osint; with Output; use Output; with Prj.Ext; with Prj.Util; with Snames; use Snames; with Table; with Ada.Command_Line; use Ada.Command_Line; with GNAT.Directory_Operations; use GNAT.Directory_Operations; with System.Case_Util; use System.Case_Util; with System.HTable; package body Makeutl is type Mark_Key is record File : File_Name_Type; Index : Int; end record; -- Identify either a mono-unit source (when Index = 0) or a specific unit -- (index = 1's origin index of unit) in a multi-unit source. -- There follow many global undocumented declarations, comments needed ??? Max_Mask_Num : constant := 2048; subtype Mark_Num is Union_Id range 0 .. Max_Mask_Num - 1; function Hash (Key : Mark_Key) return Mark_Num; package Marks is new System.HTable.Simple_HTable (Header_Num => Mark_Num, Element => Boolean, No_Element => False, Key => Mark_Key, Hash => Hash, Equal => "="); -- A hash table to keep tracks of the marked units type Linker_Options_Data is record Project : Project_Id; Options : String_List_Id; end record; Linker_Option_Initial_Count : constant := 20; Linker_Options_Buffer : String_List_Access := new String_List (1 .. Linker_Option_Initial_Count); Last_Linker_Option : Natural := 0; package Linker_Opts is new Table.Table ( Table_Component_Type => Linker_Options_Data, Table_Index_Type => Integer, Table_Low_Bound => 1, Table_Initial => 10, Table_Increment => 100, Table_Name => "Make.Linker_Opts"); procedure Add_Linker_Option (Option : String); --------- -- Add -- --------- procedure Add (Option : String_Access; To : in out String_List_Access; Last : in out Natural) is begin if Last = To'Last then declare New_Options : constant String_List_Access := new String_List (1 .. To'Last * 2); begin New_Options (To'Range) := To.all; -- Set all elements of the original options to null to avoid -- deallocation of copies. To.all := (others => null); Free (To); To := New_Options; end; end if; Last := Last + 1; To (Last) := Option; end Add; procedure Add (Option : String; To : in out String_List_Access; Last : in out Natural) is begin Add (Option => new String'(Option), To => To, Last => Last); end Add; ----------------------- -- Add_Linker_Option -- ----------------------- procedure Add_Linker_Option (Option : String) is begin if Option'Length > 0 then if Last_Linker_Option = Linker_Options_Buffer'Last then declare New_Buffer : constant String_List_Access := new String_List (1 .. Linker_Options_Buffer'Last + Linker_Option_Initial_Count); begin New_Buffer (Linker_Options_Buffer'Range) := Linker_Options_Buffer.all; Linker_Options_Buffer.all := (others => null); Free (Linker_Options_Buffer); Linker_Options_Buffer := New_Buffer; end; end if; Last_Linker_Option := Last_Linker_Option + 1; Linker_Options_Buffer (Last_Linker_Option) := new String'(Option); end if; end Add_Linker_Option; ----------------- -- Create_Name -- ----------------- function Create_Name (Name : String) return File_Name_Type is begin Name_Len := 0; Add_Str_To_Name_Buffer (Name); return Name_Find; end Create_Name; function Create_Name (Name : String) return Name_Id is begin Name_Len := 0; Add_Str_To_Name_Buffer (Name); return Name_Find; end Create_Name; function Create_Name (Name : String) return Path_Name_Type is begin Name_Len := 0; Add_Str_To_Name_Buffer (Name); return Name_Find; end Create_Name; ---------------------- -- Delete_All_Marks -- ---------------------- procedure Delete_All_Marks is begin Marks.Reset; end Delete_All_Marks; ---------------------------- -- Executable_Prefix_Path -- ---------------------------- function Executable_Prefix_Path return String is Exec_Name : constant String := Command_Name; function Get_Install_Dir (S : String) return String; -- S is the executable name preceded by the absolute or relative -- path, e.g. "c:\usr\bin\gcc.exe". Returns the absolute directory -- where "bin" lies (in the example "C:\usr"). -- If the executable is not in a "bin" directory, return "". --------------------- -- Get_Install_Dir -- --------------------- function Get_Install_Dir (S : String) return String is Exec : String := S; Path_Last : Integer := 0; begin for J in reverse Exec'Range loop if Exec (J) = Directory_Separator then Path_Last := J - 1; exit; end if; end loop; if Path_Last >= Exec'First + 2 then To_Lower (Exec (Path_Last - 2 .. Path_Last)); end if; if Path_Last < Exec'First + 2 or else Exec (Path_Last - 2 .. Path_Last) /= "bin" or else (Path_Last - 3 >= Exec'First and then Exec (Path_Last - 3) /= Directory_Separator) then return ""; end if; return Normalize_Pathname (Exec (Exec'First .. Path_Last - 4)); end Get_Install_Dir; -- Beginning of Executable_Prefix_Path begin -- First determine if a path prefix was placed in front of the -- executable name. for J in reverse Exec_Name'Range loop if Exec_Name (J) = Directory_Separator then return Get_Install_Dir (Exec_Name); end if; end loop; -- If we get here, the user has typed the executable name with no -- directory prefix. declare Path : constant String_Access := Locate_Exec_On_Path (Exec_Name); begin if Path = null then return ""; else return Get_Install_Dir (Path.all); end if; end; end Executable_Prefix_Path; ---------- -- Hash -- ---------- function Hash (Key : Mark_Key) return Mark_Num is begin return Union_Id (Key.File) mod Max_Mask_Num; end Hash; ------------ -- Inform -- ------------ procedure Inform (N : File_Name_Type; Msg : String) is begin Inform (Name_Id (N), Msg); end Inform; procedure Inform (N : Name_Id := No_Name; Msg : String) is begin Osint.Write_Program_Name; Write_Str (": "); if N /= No_Name then Write_Str (""""); declare Name : constant String := Get_Name_String (N); begin if Debug.Debug_Flag_F and then Is_Absolute_Path (Name) then Write_Str (File_Name (Name)); else Write_Str (Name); end if; end; Write_Str (""" "); end if; Write_Str (Msg); Write_Eol; end Inform; ---------------------------- -- Is_External_Assignment -- ---------------------------- function Is_External_Assignment (Argv : String) return Boolean is Start : Positive := 3; Finish : Natural := Argv'Last; Equal_Pos : Natural; pragma Assert (Argv'First = 1); pragma Assert (Argv (1 .. 2) = "-X"); begin if Argv'Last < 5 then return False; elsif Argv (3) = '"' then if Argv (Argv'Last) /= '"' or else Argv'Last < 7 then return False; else Start := 4; Finish := Argv'Last - 1; end if; end if; Equal_Pos := Start; while Equal_Pos <= Finish and then Argv (Equal_Pos) /= '=' loop Equal_Pos := Equal_Pos + 1; end loop; if Equal_Pos = Start or else Equal_Pos > Finish then return False; else Prj.Ext.Add (External_Name => Argv (Start .. Equal_Pos - 1), Value => Argv (Equal_Pos + 1 .. Finish)); return True; end if; end Is_External_Assignment; --------------- -- Is_Marked -- --------------- function Is_Marked (Source_File : File_Name_Type; Index : Int := 0) return Boolean is begin return Marks.Get (K => (File => Source_File, Index => Index)); end Is_Marked; ----------------------------- -- Linker_Options_Switches -- ----------------------------- function Linker_Options_Switches (Project : Project_Id; In_Tree : Project_Tree_Ref) return String_List is procedure Recursive_Add_Linker_Options (Proj : Project_Id); -- The recursive routine used to add linker options ---------------------------------- -- Recursive_Add_Linker_Options -- ---------------------------------- procedure Recursive_Add_Linker_Options (Proj : Project_Id) is Data : Project_Data; Linker_Package : Package_Id; Options : Variable_Value; Imported : Project_List; begin if Proj /= No_Project then Data := In_Tree.Projects.Table (Proj); if not Data.Seen then In_Tree.Projects.Table (Proj).Seen := True; Imported := Data.Imported_Projects; while Imported /= Empty_Project_List loop Recursive_Add_Linker_Options (In_Tree.Project_Lists.Table (Imported).Project); Imported := In_Tree.Project_Lists.Table (Imported).Next; end loop; if Proj /= Project then Linker_Package := Prj.Util.Value_Of (Name => Name_Linker, In_Packages => Data.Decl.Packages, In_Tree => In_Tree); Options := Prj.Util.Value_Of (Name => Name_Ada, Index => 0, Attribute_Or_Array_Name => Name_Linker_Options, In_Package => Linker_Package, In_Tree => In_Tree); -- If attribute is present, add the project with -- the attribute to table Linker_Opts. if Options /= Nil_Variable_Value then Linker_Opts.Increment_Last; Linker_Opts.Table (Linker_Opts.Last) := (Project => Proj, Options => Options.Values); end if; end if; end if; end if; end Recursive_Add_Linker_Options; -- Start of processing for Linker_Options_Switches begin Linker_Opts.Init; for Index in Project_Table.First .. Project_Table.Last (In_Tree.Projects) loop In_Tree.Projects.Table (Index).Seen := False; end loop; Recursive_Add_Linker_Options (Project); Last_Linker_Option := 0; for Index in reverse 1 .. Linker_Opts.Last loop declare Options : String_List_Id := Linker_Opts.Table (Index).Options; Proj : constant Project_Id := Linker_Opts.Table (Index).Project; Option : Name_Id; begin -- If Dir_Path has not been computed for this project, do it now if In_Tree.Projects.Table (Proj).Dir_Path = null then In_Tree.Projects.Table (Proj).Dir_Path := new String' (Get_Name_String (In_Tree.Projects.Table (Proj).Directory.Name)); end if; while Options /= Nil_String loop Option := In_Tree.String_Elements.Table (Options).Value; Get_Name_String (Option); -- Do not consider empty linker options if Name_Len /= 0 then Add_Linker_Option (Name_Buffer (1 .. Name_Len)); -- Object files and -L switches specified with relative -- paths must be converted to absolute paths. Test_If_Relative_Path (Switch => Linker_Options_Buffer (Last_Linker_Option), Parent => In_Tree.Projects.Table (Proj).Dir_Path, Including_L_Switch => True); end if; Options := In_Tree.String_Elements.Table (Options).Next; end loop; end; end loop; return Linker_Options_Buffer (1 .. Last_Linker_Option); end Linker_Options_Switches; ----------- -- Mains -- ----------- package body Mains is type File_And_Loc is record File_Name : File_Name_Type; Location : Source_Ptr := No_Location; end record; package Names is new Table.Table (Table_Component_Type => File_And_Loc, Table_Index_Type => Integer, Table_Low_Bound => 1, Table_Initial => 10, Table_Increment => 100, Table_Name => "Makeutl.Mains.Names"); -- The table that stores the mains Current : Natural := 0; -- The index of the last main retrieved from the table -------------- -- Add_Main -- -------------- procedure Add_Main (Name : String) is begin Name_Len := 0; Add_Str_To_Name_Buffer (Name); Names.Increment_Last; Names.Table (Names.Last) := (Name_Find, No_Location); end Add_Main; ------------ -- Delete -- ------------ procedure Delete is begin Names.Set_Last (0); Mains.Reset; end Delete; ------------------ -- Get_Location -- ------------------ function Get_Location return Source_Ptr is begin if Current in Names.First .. Names.Last then return Names.Table (Current).Location; else return No_Location; end if; end Get_Location; --------------- -- Next_Main -- --------------- function Next_Main return String is begin if Current >= Names.Last then return ""; else Current := Current + 1; return Get_Name_String (Names.Table (Current).File_Name); end if; end Next_Main; --------------------- -- Number_Of_Mains -- --------------------- function Number_Of_Mains return Natural is begin return Names.Last; end Number_Of_Mains; ----------- -- Reset -- ----------- procedure Reset is begin Current := 0; end Reset; ------------------ -- Set_Location -- ------------------ procedure Set_Location (Location : Source_Ptr) is begin if Names.Last > 0 then Names.Table (Names.Last).Location := Location; end if; end Set_Location; ----------------- -- Update_Main -- ----------------- procedure Update_Main (Name : String) is begin if Current in Names.First .. Names.Last then Name_Len := 0; Add_Str_To_Name_Buffer (Name); Names.Table (Current).File_Name := Name_Find; end if; end Update_Main; end Mains; ---------- -- Mark -- ---------- procedure Mark (Source_File : File_Name_Type; Index : Int := 0) is begin Marks.Set (K => (File => Source_File, Index => Index), E => True); end Mark; ----------------------- -- Path_Or_File_Name -- ----------------------- function Path_Or_File_Name (Path : Path_Name_Type) return String is Path_Name : constant String := Get_Name_String (Path); begin if Debug.Debug_Flag_F then return File_Name (Path_Name); else return Path_Name; end if; end Path_Or_File_Name; --------------------------- -- Test_If_Relative_Path -- --------------------------- procedure Test_If_Relative_Path (Switch : in out String_Access; Parent : String_Access; Including_L_Switch : Boolean := True; Including_Non_Switch : Boolean := True) is begin if Switch /= null then declare Sw : String (1 .. Switch'Length); Start : Positive; begin Sw := Switch.all; if Sw (1) = '-' then if Sw'Length >= 3 and then (Sw (2) = 'A' or else Sw (2) = 'I' or else (Including_L_Switch and then Sw (2) = 'L')) then Start := 3; if Sw = "-I-" then return; end if; elsif Sw'Length >= 4 and then (Sw (2 .. 3) = "aL" or else Sw (2 .. 3) = "aO" or else Sw (2 .. 3) = "aI") then Start := 4; else return; end if; -- Because relative path arguments to --RTS= may be relative -- to the search directory prefix, those relative path -- arguments are not converted. if not Is_Absolute_Path (Sw (Start .. Sw'Last)) then if Parent = null or else Parent'Length = 0 then Do_Fail ("relative search path switches (""" & Sw & """) are not allowed"); else Switch := new String' (Sw (1 .. Start - 1) & Parent.all & Directory_Separator & Sw (Start .. Sw'Last)); end if; end if; elsif Including_Non_Switch then if not Is_Absolute_Path (Sw) then if Parent = null or else Parent'Length = 0 then Do_Fail ("relative paths (""" & Sw & """) are not allowed"); else Switch := new String'(Parent.all & Directory_Separator & Sw); end if; end if; end if; end; end if; end Test_If_Relative_Path; ------------------- -- Unit_Index_Of -- ------------------- function Unit_Index_Of (ALI_File : File_Name_Type) return Int is Start : Natural; Finish : Natural; Result : Int := 0; begin Get_Name_String (ALI_File); -- First, find the last dot Finish := Name_Len; while Finish >= 1 and then Name_Buffer (Finish) /= '.' loop Finish := Finish - 1; end loop; if Finish = 1 then return 0; end if; -- Now check that the dot is preceded by digits Start := Finish; Finish := Finish - 1; while Start >= 1 and then Name_Buffer (Start - 1) in '0' .. '9' loop Start := Start - 1; end loop; -- If there are no digits, or if the digits are not preceded by -- the character that precedes a unit index, this is not the ALI file -- of a unit in a multi-unit source. if Start > Finish or else Start = 1 or else Name_Buffer (Start - 1) /= Multi_Unit_Index_Character then return 0; end if; -- Build the index from the digit(s) while Start <= Finish loop Result := Result * 10 + Character'Pos (Name_Buffer (Start)) - Character'Pos ('0'); Start := Start + 1; end loop; return Result; end Unit_Index_Of; end Makeutl;