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------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- M A K E U T L -- -- -- -- B o d y -- -- -- -- Copyright (C) 2004-2009, 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 ALI; use ALI; with Debug; with Fname; with Osint; use Osint; with Output; use Output; with Opt; use Opt; 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; ------------------------- -- Base_Name_Index_For -- ------------------------- function Base_Name_Index_For (Main : String; Main_Index : Int; Index_Separator : Character) return File_Name_Type is Result : File_Name_Type; begin Name_Len := 0; Add_Str_To_Name_Buffer (Base_Name (Main)); -- Remove the extension, if any, that is the last part of the base name -- starting with a dot and following some characters. for J in reverse 2 .. Name_Len loop if Name_Buffer (J) = '.' then Name_Len := J - 1; exit; end if; end loop; -- Add the index info, if index is different from 0 if Main_Index > 0 then Add_Char_To_Name_Buffer (Index_Separator); declare Img : constant String := Main_Index'Img; begin Add_Str_To_Name_Buffer (Img (2 .. Img'Last)); end; end if; Result := Name_Find; return Result; end Base_Name_Index_For; ------------------------------ -- Check_Source_Info_In_ALI -- ------------------------------ function Check_Source_Info_In_ALI (The_ALI : ALI_Id) return Boolean is Unit_Name : Name_Id; begin -- Loop through units for U in ALIs.Table (The_ALI).First_Unit .. ALIs.Table (The_ALI).Last_Unit loop -- Check if the file name is one of the source of the unit Get_Name_String (Units.Table (U).Uname); Name_Len := Name_Len - 2; Unit_Name := Name_Find; if File_Not_A_Source_Of (Unit_Name, Units.Table (U).Sfile) then return False; end if; -- Loop to do same check for each of the withed units for W in Units.Table (U).First_With .. Units.Table (U).Last_With loop declare WR : ALI.With_Record renames Withs.Table (W); begin if WR.Sfile /= No_File then Get_Name_String (WR.Uname); Name_Len := Name_Len - 2; Unit_Name := Name_Find; if File_Not_A_Source_Of (Unit_Name, WR.Sfile) then return False; end if; end if; end; end loop; end loop; -- Loop to check subunits for D in ALIs.Table (The_ALI).First_Sdep .. ALIs.Table (The_ALI).Last_Sdep loop declare SD : Sdep_Record renames Sdep.Table (D); begin Unit_Name := SD.Subunit_Name; if Unit_Name /= No_Name then -- For separates, the file is no longer associated with the -- unit ("proc-sep.adb" is not associated with unit "proc.sep") -- so we need to check whether the source file still exists in -- the source tree: it will if it matches the naming scheme -- (and then will be for the same unit). if Find_Source (In_Tree => Project_Tree, Project => No_Project, Base_Name => SD.Sfile) = No_Source then -- If this is not a runtime file or if, when gnatmake switch -- -a is used, we are not able to find this subunit in the -- source directories, then recompilation is needed. if not Fname.Is_Internal_File_Name (SD.Sfile) or else (Check_Readonly_Files and then Full_Source_Name (SD.Sfile) = No_File) then if Verbose_Mode then Write_Line ("While parsing ALI file, file " & Get_Name_String (SD.Sfile) & " is indicated as containing subunit " & Get_Name_String (Unit_Name) & " but this does not match what was found while" & " parsing the project. Will recompile"); end if; return False; end if; end if; end if; end; end loop; return True; end Check_Source_Info_In_ALI; ----------------- -- 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), Resolve_Links => Opt.Follow_Links_For_Dirs) & Directory_Separator; 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 : String_Access := Locate_Exec_On_Path (Exec_Name); begin if Path = null then return ""; else declare Dir : constant String := Get_Install_Dir (Path.all); begin Free (Path); return Dir; end; end if; end; end Executable_Prefix_Path; -------------------------- -- File_Not_A_Source_Of -- -------------------------- function File_Not_A_Source_Of (Uname : Name_Id; Sfile : File_Name_Type) return Boolean is Unit : constant Unit_Index := Units_Htable.Get (Project_Tree.Units_HT, Uname); At_Least_One_File : Boolean := False; begin if Unit /= No_Unit_Index then for F in Unit.File_Names'Range loop if Unit.File_Names (F) /= null then At_Least_One_File := True; if Unit.File_Names (F).File = Sfile then return False; end if; end if; end loop; if not At_Least_One_File then -- The unit was probably created initially for a separate unit -- (which are initially created as IMPL when both suffixes are the -- same). Later on, Override_Kind changed the type of the file, -- and the unit is no longer valid in fact. return False; end if; Verbose_Msg (Uname, "sources do not include ", Name_Id (Sfile)); return True; end if; return False; end File_Not_A_Source_Of; ---------- -- 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 (Tree : Prj.Tree.Project_Node_Tree_Ref; Argv : String) return Boolean is Start : Positive := 3; Finish : Natural := Argv'Last; 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; return Prj.Ext.Check (Tree => Tree, Declaration => Argv (Start .. Finish)); 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 (Proj : Project_Id; Dummy : in out Boolean); -- The recursive routine used to add linker options ------------------- -- Recursive_Add -- ------------------- procedure Recursive_Add (Proj : Project_Id; Dummy : in out Boolean) is pragma Unreferenced (Dummy); Linker_Package : Package_Id; Options : Variable_Value; begin Linker_Package := Prj.Util.Value_Of (Name => Name_Linker, In_Packages => Proj.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 Recursive_Add; procedure For_All_Projects is new For_Every_Project_Imported (Boolean, Recursive_Add); Dummy : Boolean := False; -- Start of processing for Linker_Options_Switches begin Linker_Opts.Init; For_All_Projects (Project, Dummy, Imported_First => True); Last_Linker_Option := 0; for Index in reverse 1 .. Linker_Opts.Last loop declare Options : String_List_Id; Proj : constant Project_Id := Linker_Opts.Table (Index).Project; Option : Name_Id; Dir_Path : constant String := Get_Name_String (Proj.Directory.Name); begin Options := Linker_Opts.Table (Index).Options; 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 => 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; Index : Int := 0; 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, 0, No_Location); end Add_Main; ------------ -- Delete -- ------------ procedure Delete is begin Names.Set_Last (0); Mains.Reset; end Delete; --------------- -- Get_Index -- --------------- function Get_Index return Int is begin if Current in Names.First .. Names.Last then return Names.Table (Current).Index; else return 0; end if; end Get_Index; ------------------ -- 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_Index -- --------------- procedure Set_Index (Index : Int) is begin if Names.Last > 0 then Names.Table (Names.Last).Index := Index; end if; end Set_Index; ------------------ -- 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; Including_L_Switch : Boolean := True; Including_Non_Switch : Boolean := True; Including_RTS : Boolean := False) 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; elsif Including_RTS and then Sw'Length >= 7 and then Sw (2 .. 6) = "-RTS=" then Start := 7; else return; end if; -- Because relative path arguments to --RTS= may be relative -- to the search directory prefix, those relative path -- arguments are converted only when they include directory -- information. if not Is_Absolute_Path (Sw (Start .. Sw'Last)) then if Parent'Length = 0 then Do_Fail ("relative search path switches (""" & Sw & """) are not allowed"); elsif Including_RTS then for J in Start .. Sw'Last loop if Sw (J) = Directory_Separator then Switch := new String' (Sw (1 .. Start - 1) & Parent & Directory_Separator & Sw (Start .. Sw'Last)); return; end if; end loop; else Switch := new String' (Sw (1 .. Start - 1) & Parent & Directory_Separator & Sw (Start .. Sw'Last)); end if; end if; elsif Including_Non_Switch then if not Is_Absolute_Path (Sw) then if Parent'Length = 0 then Do_Fail ("relative paths (""" & Sw & """) are not allowed"); else Switch := new String'(Parent & 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; ----------------- -- Verbose_Msg -- ----------------- procedure Verbose_Msg (N1 : Name_Id; S1 : String; N2 : Name_Id := No_Name; S2 : String := ""; Prefix : String := " -> "; Minimum_Verbosity : Opt.Verbosity_Level_Type := Opt.Low) is begin if not Opt.Verbose_Mode or else Minimum_Verbosity > Opt.Verbosity_Level then return; end if; Write_Str (Prefix); Write_Str (""""); Write_Name (N1); Write_Str (""" "); Write_Str (S1); if N2 /= No_Name then Write_Str (" """); Write_Name (N2); Write_Str (""" "); end if; Write_Str (S2); Write_Eol; end Verbose_Msg; procedure Verbose_Msg (N1 : File_Name_Type; S1 : String; N2 : File_Name_Type := No_File; S2 : String := ""; Prefix : String := " -> "; Minimum_Verbosity : Opt.Verbosity_Level_Type := Opt.Low) is begin Verbose_Msg (Name_Id (N1), S1, Name_Id (N2), S2, Prefix, Minimum_Verbosity); end Verbose_Msg; end Makeutl;
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