------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S W I T C H - B -- -- -- -- B o d y -- -- -- -- Copyright (C) 2001-2005 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 2, 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 COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- 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 Osint; use Osint; with Opt; use Opt; with System.WCh_Con; use System.WCh_Con; package body Switch.B is -------------------------- -- Scan_Binder_Switches -- -------------------------- procedure Scan_Binder_Switches (Switch_Chars : String) is Max : constant Integer := Switch_Chars'Last; Ptr : Integer := Switch_Chars'First; C : Character := ' '; begin -- Skip past the initial character (must be the switch character) if Ptr = Max then raise Bad_Switch; else Ptr := Ptr + 1; end if; -- A little check, "gnat" at the start of a switch is not allowed -- except for the compiler if Switch_Chars'Last >= Ptr + 3 and then Switch_Chars (Ptr .. Ptr + 3) = "gnat" then Osint.Fail ("invalid switch: """, Switch_Chars, """" & " (gnat not needed here)"); end if; -- Loop to scan through switches given in switch string while Ptr <= Max loop C := Switch_Chars (Ptr); case C is -- Processing for A switch when 'A' => Ptr := Ptr + 1; Ada_Bind_File := True; -- Processing for b switch when 'b' => Ptr := Ptr + 1; Brief_Output := True; -- Processing for c switch when 'c' => Ptr := Ptr + 1; Check_Only := True; -- Processing for C switch when 'C' => Ptr := Ptr + 1; Ada_Bind_File := False; -- Processing for d switch when 'd' => -- 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); 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 Set_Debug_Flag (C); else raise Bad_Switch; end if; end loop; -- Make sure Zero_Cost_Exceptions is set if gnatdX set. This -- is for backwards compatibility with old versions and usage. if Debug_Flag_XX then Zero_Cost_Exceptions_Set := True; Zero_Cost_Exceptions_Val := True; end if; return; -- Processing for D switch when 'D' => Ptr := Ptr + 1; Scan_Pos (Switch_Chars, Max, Ptr, Default_Sec_Stack_Size); -- Processing for e switch when 'e' => Ptr := Ptr + 1; Elab_Dependency_Output := True; -- Processing for E switch when 'E' => Ptr := Ptr + 1; Exception_Tracebacks := True; -- Processing for f switch when 'f' => Ptr := Ptr + 1; Force_RM_Elaboration_Order := True; -- Processing for F switch when 'F' => Ptr := Ptr + 1; Force_Checking_Of_Elaboration_Flags := True; -- Processing for g switch when 'g' => Ptr := Ptr + 1; if Ptr <= Max then C := Switch_Chars (Ptr); if C in '0' .. '3' then Debugger_Level := Character'Pos (Switch_Chars (Ptr)) - Character'Pos ('0'); Ptr := Ptr + 1; end if; else Debugger_Level := 2; end if; -- Processing for h switch when 'h' => Ptr := Ptr + 1; Usage_Requested := True; -- Processing for i switch when 'i' => if Ptr = Max then raise Bad_Switch; end if; Ptr := Ptr + 1; 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 Identifier_Character_Set := C; Ptr := Ptr + 1; else raise Bad_Switch; end if; -- Processing for K switch when 'K' => Ptr := Ptr + 1; Output_Linker_Option_List := True; -- Processing for l switch when 'l' => Ptr := Ptr + 1; Elab_Order_Output := True; -- Processing for m switch when 'm' => Ptr := Ptr + 1; Scan_Pos (Switch_Chars, Max, Ptr, Maximum_Errors); -- Processing for n switch when 'n' => Ptr := Ptr + 1; Bind_Main_Program := False; -- Note: The -L option of the binder also implies -n, so -- any change here must also be reflected in the processing -- for -L that is found in Gnatbind.Scan_Bind_Arg. -- Processing for o switch when 'o' => Ptr := Ptr + 1; if Output_File_Name_Present then raise Too_Many_Output_Files; else Output_File_Name_Present := True; end if; -- Processing for O switch when 'O' => Ptr := Ptr + 1; Output_Object_List := True; -- Processing for p switch when 'p' => Ptr := Ptr + 1; Pessimistic_Elab_Order := True; -- Processing for q switch when 'q' => Ptr := Ptr + 1; Quiet_Output := True; -- Processing for r switch when 'r' => Ptr := Ptr + 1; List_Restrictions := True; -- Processing for s switch when 's' => Ptr := Ptr + 1; All_Sources := True; Check_Source_Files := True; -- Processing for t switch when 't' => Ptr := Ptr + 1; Tolerate_Consistency_Errors := True; -- Processing for T switch when 'T' => Ptr := Ptr + 1; Time_Slice_Set := True; Scan_Nat (Switch_Chars, Max, Ptr, Time_Slice_Value); Time_Slice_Value := Time_Slice_Value * 1_000; -- Processing for v switch when 'v' => Ptr := Ptr + 1; Verbose_Mode := True; -- Processing for w switch when 'w' => -- For the binder we only allow suppress/error cases Ptr := Ptr + 1; case Switch_Chars (Ptr) is when 'e' => Warning_Mode := Treat_As_Error; when 's' => Warning_Mode := Suppress; when others => raise Bad_Switch; end case; Ptr := Ptr + 1; -- Processing for W switch when 'W' => Ptr := Ptr + 1; for J in WC_Encoding_Method loop if Switch_Chars (Ptr) = WC_Encoding_Letters (J) then Wide_Character_Encoding_Method := J; exit; elsif J = WC_Encoding_Method'Last then raise Bad_Switch; end if; end loop; Upper_Half_Encoding := Wide_Character_Encoding_Method in WC_Upper_Half_Encoding_Method; Ptr := Ptr + 1; -- Processing for x switch when 'x' => Ptr := Ptr + 1; All_Sources := False; Check_Source_Files := False; -- Processing for X switch when 'X' => Ptr := Ptr + 1; Scan_Pos (Switch_Chars, Max, Ptr, Default_Exit_Status); -- Processing for z switch when 'z' => Ptr := Ptr + 1; No_Main_Subprogram := True; -- Ignore extra switch character when '/' => Ptr := Ptr + 1; -- Ignore '-' extra switch caracter, only if it isn't followed by -- 'RTS'. If it is, then we must process the 'RTS' switch when '-' => if Ptr + 3 <= Max and then Switch_Chars (Ptr + 1 .. Ptr + 3) = "RTS" then Ptr := Ptr + 1; if Switch_Chars (Ptr + 3) /= '=' or else (Switch_Chars (Ptr + 3) = '=' and then Ptr + 4 > Max) then Osint.Fail ("missing path for --RTS"); else -- valid --RTS switch Opt.No_Stdinc := True; Opt.RTS_Switch := True; declare Src_Path_Name : constant String_Ptr := Get_RTS_Search_Dir (Switch_Chars (Ptr + 4 .. Switch_Chars'Last), Include); Lib_Path_Name : constant String_Ptr := Get_RTS_Search_Dir (Switch_Chars (Ptr + 4 .. Switch_Chars'Last), Objects); begin if Src_Path_Name /= null and then Lib_Path_Name /= null then -- Set the RTS_*_Path_Name variables, so that the -- correct directories will be set when -- Osint.Add_Default_Search_Dirs will be called later. RTS_Src_Path_Name := Src_Path_Name; RTS_Lib_Path_Name := Lib_Path_Name; -- We can exit as there can not be another switch -- after --RTS exit; elsif Src_Path_Name = null and then Lib_Path_Name = null then Osint.Fail ("RTS path not valid: missing " & "adainclude and adalib directories"); elsif Src_Path_Name = null then Osint.Fail ("RTS path not valid: missing " & "adainclude directory"); elsif Lib_Path_Name = null then Osint.Fail ("RTS path not valid: missing " & "adalib directory"); end if; end; end if; else Ptr := Ptr + 1; end if; -- Anything else is an error (illegal switch character) when others => raise Bad_Switch; end case; end loop; exception when Bad_Switch => Osint.Fail ("invalid switch: ", (1 => C)); when Bad_Switch_Value => Osint.Fail ("numeric value out of range for switch: ", (1 => C)); when Missing_Switch_Value => Osint.Fail ("missing numeric value for switch: ", (1 => C)); when Too_Many_Output_Files => Osint.Fail ("duplicate -o switch"); end Scan_Binder_Switches; end Switch.B;