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------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S W I T C H - M -- -- -- -- B o d y -- -- -- -- Copyright (C) 2001-2009, 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 Debug; use Debug; with Makeutl; use Makeutl; with Osint; use Osint; with Opt; use Opt; with Prj; use Prj; with Prj.Ext; use Prj.Ext; with Table; package body Switch.M is package Normalized_Switches is new Table.Table (Table_Component_Type => String_Access, Table_Index_Type => Integer, Table_Low_Bound => 1, Table_Initial => 20, Table_Increment => 100, Table_Name => "Switch.M.Normalized_Switches"); -- This table is used to keep the normalized switches, so that they may be -- reused for subsequent invocations of Normalize_Compiler_Switches with -- similar switches. Initial_Number_Of_Switches : constant := 10; Global_Switches : Argument_List_Access := null; -- Used by function Normalize_Compiler_Switches --------------------------------- -- Normalize_Compiler_Switches -- --------------------------------- procedure Normalize_Compiler_Switches (Switch_Chars : String; Switches : in out Argument_List_Access; Last : out Natural) is Switch_Starts_With_Gnat : Boolean; Ptr : Integer := Switch_Chars'First; Max : constant Integer := Switch_Chars'Last; C : Character := ' '; Storing : String := Switch_Chars; First_Stored : Positive := Ptr + 1; Last_Stored : Positive := First_Stored; procedure Add_Switch_Component (S : String); -- Add a new String_Access component in Switches. If a string equal -- to S is already stored in the table Normalized_Switches, use it. -- Other wise add a new component to the table. -------------------------- -- Add_Switch_Component -- -------------------------- procedure Add_Switch_Component (S : String) is begin -- If Switches is null, allocate a new array if Switches = null then Switches := new Argument_List (1 .. Initial_Number_Of_Switches); -- Otherwise, if Switches is full, extend it elsif Last = Switches'Last then declare New_Switches : constant Argument_List_Access := new Argument_List (1 .. Switches'Length + Switches'Length); begin New_Switches (1 .. Switches'Length) := Switches.all; Last := Switches'Length; Switches := New_Switches; end; end if; -- If this is the first switch, Last designates the first component if Last = 0 then Last := Switches'First; else Last := Last + 1; end if; -- Look into the table Normalized_Switches for a similar string. -- If one is found, put it at the added component, and return. for Index in 1 .. Normalized_Switches.Last loop if S = Normalized_Switches.Table (Index).all then Switches (Last) := Normalized_Switches.Table (Index); return; end if; end loop; -- No string equal to S was found in the table Normalized_Switches. -- Add a new component in the table. Switches (Last) := new String'(S); Normalized_Switches.Append (Switches (Last)); end Add_Switch_Component; -- Start of processing for Normalize_Compiler_Switches begin Last := 0; if Ptr = Max or else Switch_Chars (Ptr) /= '-' then return; end if; Ptr := Ptr + 1; Switch_Starts_With_Gnat := Ptr + 3 <= Max and then Switch_Chars (Ptr .. Ptr + 3) = "gnat"; if Switch_Starts_With_Gnat then Ptr := Ptr + 4; First_Stored := Ptr; end if; while Ptr <= Max loop C := Switch_Chars (Ptr); -- Processing for a switch case Switch_Starts_With_Gnat is when False => -- All switches that don't start with -gnat stay as is, -- except -pg, -Wall, -k8, -w if Switch_Chars = "-pg" or else Switch_Chars = "-p" then -- The gcc driver converts -pg to -p, so that is what -- is stored in the ALI file. Add_Switch_Component ("-p"); elsif Switch_Chars = "-Wall" then -- The gcc driver adds -gnatwa when -Wall is used Add_Switch_Component ("-gnatwa"); Add_Switch_Component ("-Wall"); elsif Switch_Chars = "-k8" then -- The gcc driver transforms -k8 into -gnatk8 Add_Switch_Component ("-gnatk8"); elsif Switch_Chars = "-w" then -- The gcc driver adds -gnatws when -w is used Add_Switch_Component ("-gnatws"); Add_Switch_Component ("-w"); elsif Switch_Chars'Length > 6 and then Switch_Chars (Switch_Chars'First .. Switch_Chars'First + 5) = "--RTS=" then Add_Switch_Component (Switch_Chars); -- When --RTS=mtp is used, the gcc driver adds -mrtp if Switch_Chars = "--RTS=mtp" then Add_Switch_Component ("-mrtp"); end if; -- Take only into account switches that are transmitted to -- gnat1 by the gcc driver and stored by gnat1 in the ALI file. else case C is when 'O' | 'W' | 'w' | 'f' | 'd' | 'g' | 'm' => Add_Switch_Component (Switch_Chars); when others => null; end case; end if; return; when True => case C is -- One-letter switches when 'a' | 'A' | 'b' | 'c' | 'D' | 'E' | 'f' | 'F' | 'g' | 'h' | 'H' | 'k' | 'l' | 'L' | 'n' | 'N' | 'o' | 'O' | 'p' | 'P' | 'q' | 'Q' | 'r' | 's' | 't' | 'u' | 'U' | 'v' | 'x' | 'X' | 'Z' => Storing (First_Stored) := C; Add_Switch_Component (Storing (Storing'First .. First_Stored)); Ptr := Ptr + 1; -- One-letter switches followed by a positive number when 'm' | 'T' => Storing (First_Stored) := C; Last_Stored := First_Stored; loop Ptr := Ptr + 1; exit when Ptr > Max or else Switch_Chars (Ptr) not in '0' .. '9'; Last_Stored := Last_Stored + 1; Storing (Last_Stored) := Switch_Chars (Ptr); end loop; Add_Switch_Component (Storing (Storing'First .. Last_Stored)); when 'd' => Storing (First_Stored) := 'd'; while Ptr < Max loop Ptr := Ptr + 1; C := Switch_Chars (Ptr); exit when C = ASCII.NUL or else C = '/' or else C = '-'; if C in '1' .. '9' or else C in 'a' .. 'z' or else C in 'A' .. 'Z' then Storing (First_Stored + 1) := C; Add_Switch_Component (Storing (Storing'First .. First_Stored + 1)); else Last := 0; return; end if; end loop; return; when 'e' => -- Store -gnateD, -gnatep= and -gnateG in the ALI file. -- The other -gnate switches do not need to be stored. Storing (First_Stored) := 'e'; Ptr := Ptr + 1; if Ptr > Max or else (Switch_Chars (Ptr) /= 'D' and then Switch_Chars (Ptr) /= 'G' and then Switch_Chars (Ptr) /= 'p') then Last := 0; return; end if; -- Processing for -gnateD if Switch_Chars (Ptr) = 'D' then Storing (First_Stored + 1 .. First_Stored + Max - Ptr + 1) := Switch_Chars (Ptr .. Max); Add_Switch_Component (Storing (Storing'First .. First_Stored + Max - Ptr + 1)); -- Processing for -gnatep= elsif Switch_Chars (Ptr) = 'p' then Ptr := Ptr + 1; if Ptr = Max then Last := 0; return; end if; if Switch_Chars (Ptr) = '=' then Ptr := Ptr + 1; end if; -- To normalize, always put a '=' after -gnatep. -- Because that could lengthen the switch string, -- declare a local variable. declare To_Store : String (1 .. Max - Ptr + 9); begin To_Store (1 .. 8) := "-gnatep="; To_Store (9 .. Max - Ptr + 9) := Switch_Chars (Ptr .. Max); Add_Switch_Component (To_Store); end; elsif Switch_Chars (Ptr) = 'G' then Add_Switch_Component ("-gnateG"); end if; return; when 'i' => Storing (First_Stored) := 'i'; Ptr := Ptr + 1; if Ptr > Max then Last := 0; return; end if; C := Switch_Chars (Ptr); if C in '1' .. '5' or else C = '8' or else C = 'p' or else C = 'f' or else C = 'n' or else C = 'w' then Storing (First_Stored + 1) := C; Add_Switch_Component (Storing (Storing'First .. First_Stored + 1)); Ptr := Ptr + 1; else Last := 0; return; end if; -- -gnatR may be followed by '0', '1', '2' or '3', -- then by 's' when 'R' => Last_Stored := First_Stored; Storing (Last_Stored) := 'R'; Ptr := Ptr + 1; if Ptr <= Max and then Switch_Chars (Ptr) in '0' .. '9' then C := Switch_Chars (Ptr); if C in '4' .. '9' then Last := 0; return; else Last_Stored := Last_Stored + 1; Storing (Last_Stored) := C; Ptr := Ptr + 1; if Ptr <= Max and then Switch_Chars (Ptr) = 's' then Last_Stored := Last_Stored + 1; Storing (Last_Stored) := 's'; Ptr := Ptr + 1; end if; end if; end if; Add_Switch_Component (Storing (Storing'First .. Last_Stored)); -- Multiple switches when 'V' | 'w' | 'y' => Storing (First_Stored) := C; Ptr := Ptr + 1; if Ptr > Max then if C = 'y' then Add_Switch_Component (Storing (Storing'First .. First_Stored)); else Last := 0; return; end if; end if; -- Loop through remaining switch characters in string while Ptr <= Max loop C := Switch_Chars (Ptr); Ptr := Ptr + 1; -- -gnatyMxxx if C = 'M' and then Storing (First_Stored) = 'y' then Last_Stored := First_Stored + 1; Storing (Last_Stored) := 'M'; while Ptr <= Max loop C := Switch_Chars (Ptr); exit when C not in '0' .. '9'; Last_Stored := Last_Stored + 1; Storing (Last_Stored) := C; Ptr := Ptr + 1; end loop; -- If there is no digit after -gnatyM, -- the switch is invalid. if Last_Stored = First_Stored + 1 then Last := 0; return; else Add_Switch_Component (Storing (Storing'First .. Last_Stored)); end if; -- --gnatx.x elsif C = '.' and then Ptr <= Max then Storing (First_Stored + 1) := '.'; Storing (First_Stored + 2) := Switch_Chars (Ptr); Ptr := Ptr + 1; Add_Switch_Component (Storing (Storing'First .. First_Stored + 2)); -- All other switches are -gnatxx else Storing (First_Stored + 1) := C; Add_Switch_Component (Storing (Storing'First .. First_Stored + 1)); end if; end loop; -- -gnat95 -gnat05 when '0' | '9' => Last_Stored := First_Stored; Storing (Last_Stored) := C; Ptr := Ptr + 1; if Ptr /= Max or else Switch_Chars (Ptr) /= '5' then -- Invalid switch Last := 0; return; else Last_Stored := Last_Stored + 1; Storing (Last_Stored) := '5'; Add_Switch_Component (Storing (Storing'First .. Last_Stored)); Ptr := Ptr + 1; end if; -- -gnat83 when '8' => Last_Stored := First_Stored; Storing (Last_Stored) := '8'; Ptr := Ptr + 1; if Ptr /= Max or else Switch_Chars (Ptr) /= '3' then -- Invalid switch Last := 0; return; else Last_Stored := Last_Stored + 1; Storing (Last_Stored) := '3'; Add_Switch_Component (Storing (Storing'First .. Last_Stored)); Ptr := Ptr + 1; end if; -- Not a valid switch when others => Last := 0; return; end case; end case; end loop; end Normalize_Compiler_Switches; function Normalize_Compiler_Switches (Switch_Chars : String) return Argument_List is Last : Natural; begin Normalize_Compiler_Switches (Switch_Chars, Global_Switches, Last); if Last = 0 then return (1 .. 0 => null); else return Global_Switches (Global_Switches'First .. Last); end if; end Normalize_Compiler_Switches; ------------------------ -- Scan_Make_Switches -- ------------------------ procedure Scan_Make_Switches (Project_Node_Tree : Prj.Tree.Project_Node_Tree_Ref; Switch_Chars : String; Success : out Boolean) is Ptr : Integer := Switch_Chars'First; Max : constant Integer := Switch_Chars'Last; C : Character := ' '; begin -- Assume a good switch Success := True; -- Skip past the initial character (must be the switch character) if Ptr = Max then Bad_Switch (Switch_Chars); else Ptr := Ptr + 1; end if; -- A little check, "gnat" at the start of a switch is for the compiler if Switch_Chars'Length >= Ptr + 3 and then Switch_Chars (Ptr .. Ptr + 3) = "gnat" then Success := False; return; end if; C := Switch_Chars (Ptr); -- Multiple character switches if Switch_Chars'Length > 2 then if Switch_Chars = "--create-missing-dirs" then Setup_Projects := True; elsif Switch_Chars'Length > Subdirs_Option'Length and then Switch_Chars (Switch_Chars'First .. Switch_Chars'First + Subdirs_Option'Length - 1) = Subdirs_Option then Subdirs := new String' (Switch_Chars (Switch_Chars'First + Subdirs_Option'Length .. Switch_Chars'Last)); elsif Switch_Chars (Ptr) = '-' then Bad_Switch (Switch_Chars); elsif Switch_Chars'Length > 3 and then Switch_Chars (Ptr .. Ptr + 1) = "aP" then Add_Search_Project_Directory (Project_Node_Tree, Switch_Chars (Ptr + 2 .. Switch_Chars'Last)); elsif C = 'v' and then Switch_Chars'Length = 3 then Ptr := Ptr + 1; Verbose_Mode := True; case Switch_Chars (Ptr) is when 'l' => Verbosity_Level := Opt.Low; when 'm' => Verbosity_Level := Opt.Medium; when 'h' => Verbosity_Level := Opt.High; when others => Success := False; end case; elsif C = 'd' then -- Note: for the debug switch, the remaining characters in this -- switch field must all be debug flags, since all valid switch -- characters are also valid debug characters. This switch is not -- documented on purpose because it is only used by the -- implementors. -- Loop to scan out debug flags while Ptr < Max loop Ptr := Ptr + 1; C := Switch_Chars (Ptr); if C in 'a' .. 'z' or else C in 'A' .. 'Z' then Set_Debug_Flag (C); else Bad_Switch (Switch_Chars); end if; end loop; elsif C = 'e' then Ptr := Ptr + 1; case Switch_Chars (Ptr) is -- Processing for eI switch when 'I' => Ptr := Ptr + 1; Scan_Pos (Switch_Chars, Max, Ptr, Main_Index, C); if Ptr <= Max then Bad_Switch (Switch_Chars); end if; -- Processing for eL switch when 'L' => if Ptr /= Max then Bad_Switch (Switch_Chars); else Follow_Links_For_Files := True; Follow_Links_For_Dirs := True; end if; -- Processing for eS switch when 'S' => if Ptr /= Max then Bad_Switch (Switch_Chars); else Commands_To_Stdout := True; end if; when others => Bad_Switch (Switch_Chars); end case; elsif C = 'j' then Ptr := Ptr + 1; declare Max_Proc : Pos; begin Scan_Pos (Switch_Chars, Max, Ptr, Max_Proc, C); if Ptr <= Max then Bad_Switch (Switch_Chars); else Maximum_Processes := Positive (Max_Proc); end if; end; elsif C = 'w' and then Switch_Chars'Length = 3 then Ptr := Ptr + 1; if Switch_Chars = "-we" then Warning_Mode := Treat_As_Error; elsif Switch_Chars = "-wn" then Warning_Mode := Normal; elsif Switch_Chars = "-ws" then Warning_Mode := Suppress; else Success := False; end if; else Success := False; end if; -- Single-character switches else Check_Switch : begin case C is when 'a' => Check_Readonly_Files := True; -- Processing for b switch when 'b' => Bind_Only := True; Make_Steps := True; -- Processing for B switch when 'B' => Build_Bind_And_Link_Full_Project := True; -- Processing for c switch when 'c' => Compile_Only := True; Make_Steps := True; -- Processing for C switch when 'C' => Create_Mapping_File := True; -- Processing for D switch when 'D' => if Object_Directory_Present then Osint.Fail ("duplicate -D switch"); else Object_Directory_Present := True; end if; -- Processing for f switch when 'f' => Force_Compilations := True; -- Processing for F switch when 'F' => Full_Path_Name_For_Brief_Errors := True; -- Processing for h switch when 'h' => Usage_Requested := True; -- Processing for i switch when 'i' => In_Place_Mode := True; -- Processing for j switch when 'j' => -- -j not followed by a number is an error Bad_Switch (Switch_Chars); -- Processing for k switch when 'k' => Keep_Going := True; -- Processing for l switch when 'l' => Link_Only := True; Make_Steps := True; -- Processing for M switch when 'M' => List_Dependencies := True; -- Processing for n switch when 'n' => Do_Not_Execute := True; -- Processing for o switch when 'o' => if Output_File_Name_Present then Osint.Fail ("duplicate -o switch"); else Output_File_Name_Present := True; end if; -- Processing for p switch when 'p' => Setup_Projects := True; -- Processing for q switch when 'q' => Quiet_Output := True; -- Processing for R switch when 'R' => Run_Path_Option := False; -- Processing for s switch when 's' => Ptr := Ptr + 1; Check_Switches := True; -- Processing for v switch when 'v' => Verbose_Mode := True; Verbosity_Level := Opt.High; -- Processing for x switch when 'x' => External_Unit_Compilation_Allowed := True; -- Processing for z switch when 'z' => No_Main_Subprogram := True; -- Any other small letter is an illegal switch when others => if C in 'a' .. 'z' then Bad_Switch (Switch_Chars); else Success := False; end if; end case; end Check_Switch; end if; end Scan_Make_Switches; end Switch.M;