864 lines
27 KiB
Ada
864 lines
27 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- S W I T C H - M --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 2001-2009, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING3. If not, go to --
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-- http://www.gnu.org/licenses for a complete copy of the license. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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with Debug; use Debug;
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with Makeutl; use Makeutl;
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with Osint; use Osint;
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with Opt; use Opt;
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with Prj; use Prj;
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with Prj.Ext; use Prj.Ext;
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with Table;
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package body Switch.M is
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package Normalized_Switches is new Table.Table
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(Table_Component_Type => String_Access,
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Table_Index_Type => Integer,
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Table_Low_Bound => 1,
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Table_Initial => 20,
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Table_Increment => 100,
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Table_Name => "Switch.M.Normalized_Switches");
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-- This table is used to keep the normalized switches, so that they may be
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-- reused for subsequent invocations of Normalize_Compiler_Switches with
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-- similar switches.
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Initial_Number_Of_Switches : constant := 10;
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Global_Switches : Argument_List_Access := null;
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-- Used by function Normalize_Compiler_Switches
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---------------------------------
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-- Normalize_Compiler_Switches --
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---------------------------------
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procedure Normalize_Compiler_Switches
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(Switch_Chars : String;
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Switches : in out Argument_List_Access;
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Last : out Natural)
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is
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Switch_Starts_With_Gnat : Boolean;
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Ptr : Integer := Switch_Chars'First;
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Max : constant Integer := Switch_Chars'Last;
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C : Character := ' ';
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Storing : String := Switch_Chars;
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First_Stored : Positive := Ptr + 1;
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Last_Stored : Positive := First_Stored;
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procedure Add_Switch_Component (S : String);
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-- Add a new String_Access component in Switches. If a string equal
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-- to S is already stored in the table Normalized_Switches, use it.
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-- Other wise add a new component to the table.
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--------------------------
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-- Add_Switch_Component --
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--------------------------
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procedure Add_Switch_Component (S : String) is
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begin
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-- If Switches is null, allocate a new array
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if Switches = null then
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Switches := new Argument_List (1 .. Initial_Number_Of_Switches);
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-- Otherwise, if Switches is full, extend it
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elsif Last = Switches'Last then
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declare
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New_Switches : constant Argument_List_Access :=
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new Argument_List
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(1 .. Switches'Length + Switches'Length);
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begin
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New_Switches (1 .. Switches'Length) := Switches.all;
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Last := Switches'Length;
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Switches := New_Switches;
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end;
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end if;
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-- If this is the first switch, Last designates the first component
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if Last = 0 then
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Last := Switches'First;
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else
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Last := Last + 1;
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end if;
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-- Look into the table Normalized_Switches for a similar string.
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-- If one is found, put it at the added component, and return.
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for Index in 1 .. Normalized_Switches.Last loop
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if S = Normalized_Switches.Table (Index).all then
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Switches (Last) := Normalized_Switches.Table (Index);
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return;
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end if;
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end loop;
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-- No string equal to S was found in the table Normalized_Switches.
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-- Add a new component in the table.
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Switches (Last) := new String'(S);
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Normalized_Switches.Append (Switches (Last));
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end Add_Switch_Component;
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-- Start of processing for Normalize_Compiler_Switches
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begin
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Last := 0;
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if Ptr = Max or else Switch_Chars (Ptr) /= '-' then
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return;
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end if;
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Ptr := Ptr + 1;
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Switch_Starts_With_Gnat :=
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Ptr + 3 <= Max and then Switch_Chars (Ptr .. Ptr + 3) = "gnat";
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if Switch_Starts_With_Gnat then
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Ptr := Ptr + 4;
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First_Stored := Ptr;
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end if;
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while Ptr <= Max loop
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C := Switch_Chars (Ptr);
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-- Processing for a switch
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case Switch_Starts_With_Gnat is
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when False =>
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-- All switches that don't start with -gnat stay as is,
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-- except -pg, -Wall, -k8, -w
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if Switch_Chars = "-pg" or else Switch_Chars = "-p" then
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-- The gcc driver converts -pg to -p, so that is what
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-- is stored in the ALI file.
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Add_Switch_Component ("-p");
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elsif Switch_Chars = "-Wall" then
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-- The gcc driver adds -gnatwa when -Wall is used
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Add_Switch_Component ("-gnatwa");
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Add_Switch_Component ("-Wall");
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elsif Switch_Chars = "-k8" then
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-- The gcc driver transforms -k8 into -gnatk8
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Add_Switch_Component ("-gnatk8");
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elsif Switch_Chars = "-w" then
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-- The gcc driver adds -gnatws when -w is used
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Add_Switch_Component ("-gnatws");
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Add_Switch_Component ("-w");
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elsif Switch_Chars'Length > 6
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and then
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Switch_Chars (Switch_Chars'First .. Switch_Chars'First + 5)
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= "--RTS="
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then
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Add_Switch_Component (Switch_Chars);
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-- When --RTS=mtp is used, the gcc driver adds -mrtp
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if Switch_Chars = "--RTS=mtp" then
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Add_Switch_Component ("-mrtp");
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end if;
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-- Take only into account switches that are transmitted to
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-- gnat1 by the gcc driver and stored by gnat1 in the ALI file.
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else
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case C is
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when 'O' | 'W' | 'w' | 'f' | 'd' | 'g' | 'm' =>
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Add_Switch_Component (Switch_Chars);
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when others =>
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null;
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end case;
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end if;
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return;
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when True =>
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case C is
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-- One-letter switches
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when 'a' | 'A' | 'b' | 'c' | 'D' | 'E' | 'f' |
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'F' | 'g' | 'h' | 'H' | 'k' | 'l' | 'L' | 'n' | 'N' |
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'o' | 'O' | 'p' | 'P' | 'q' | 'Q' | 'r' | 's' | 't' |
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'u' | 'U' | 'v' | 'x' | 'X' | 'Z' =>
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Storing (First_Stored) := C;
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Add_Switch_Component
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(Storing (Storing'First .. First_Stored));
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Ptr := Ptr + 1;
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-- One-letter switches followed by a positive number
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when 'm' | 'T' =>
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Storing (First_Stored) := C;
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Last_Stored := First_Stored;
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loop
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Ptr := Ptr + 1;
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exit when Ptr > Max
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or else Switch_Chars (Ptr) not in '0' .. '9';
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Last_Stored := Last_Stored + 1;
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Storing (Last_Stored) := Switch_Chars (Ptr);
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end loop;
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Add_Switch_Component
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(Storing (Storing'First .. Last_Stored));
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when 'd' =>
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Storing (First_Stored) := 'd';
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while Ptr < Max loop
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Ptr := Ptr + 1;
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C := Switch_Chars (Ptr);
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exit when C = ASCII.NUL or else C = '/'
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or else C = '-';
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if C in '1' .. '9' or else
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C in 'a' .. 'z' or else
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C in 'A' .. 'Z'
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then
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Storing (First_Stored + 1) := C;
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Add_Switch_Component
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(Storing (Storing'First .. First_Stored + 1));
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else
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Last := 0;
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return;
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end if;
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end loop;
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return;
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when 'e' =>
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-- Store -gnateD, -gnatep= and -gnateG in the ALI file.
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-- The other -gnate switches do not need to be stored.
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Storing (First_Stored) := 'e';
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Ptr := Ptr + 1;
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if Ptr > Max
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or else (Switch_Chars (Ptr) /= 'D'
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and then Switch_Chars (Ptr) /= 'G'
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and then Switch_Chars (Ptr) /= 'p')
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then
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Last := 0;
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return;
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end if;
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-- Processing for -gnateD
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if Switch_Chars (Ptr) = 'D' then
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Storing (First_Stored + 1 ..
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First_Stored + Max - Ptr + 1) :=
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Switch_Chars (Ptr .. Max);
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Add_Switch_Component
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(Storing (Storing'First ..
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First_Stored + Max - Ptr + 1));
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-- Processing for -gnatep=
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elsif Switch_Chars (Ptr) = 'p' then
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Ptr := Ptr + 1;
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if Ptr = Max then
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Last := 0;
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return;
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end if;
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if Switch_Chars (Ptr) = '=' then
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Ptr := Ptr + 1;
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end if;
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-- To normalize, always put a '=' after -gnatep.
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-- Because that could lengthen the switch string,
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-- declare a local variable.
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declare
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To_Store : String (1 .. Max - Ptr + 9);
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begin
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To_Store (1 .. 8) := "-gnatep=";
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To_Store (9 .. Max - Ptr + 9) :=
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Switch_Chars (Ptr .. Max);
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Add_Switch_Component (To_Store);
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end;
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elsif Switch_Chars (Ptr) = 'G' then
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Add_Switch_Component ("-gnateG");
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end if;
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return;
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when 'i' =>
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Storing (First_Stored) := 'i';
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Ptr := Ptr + 1;
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if Ptr > Max then
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Last := 0;
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return;
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end if;
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C := Switch_Chars (Ptr);
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if C in '1' .. '5'
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or else C = '8'
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or else C = 'p'
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or else C = 'f'
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or else C = 'n'
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or else C = 'w'
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then
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Storing (First_Stored + 1) := C;
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Add_Switch_Component
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(Storing (Storing'First .. First_Stored + 1));
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Ptr := Ptr + 1;
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else
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Last := 0;
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return;
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end if;
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-- -gnatR may be followed by '0', '1', '2' or '3',
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-- then by 's'
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when 'R' =>
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Last_Stored := First_Stored;
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Storing (Last_Stored) := 'R';
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Ptr := Ptr + 1;
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if Ptr <= Max
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and then Switch_Chars (Ptr) in '0' .. '9'
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then
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C := Switch_Chars (Ptr);
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if C in '4' .. '9' then
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Last := 0;
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return;
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else
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Last_Stored := Last_Stored + 1;
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Storing (Last_Stored) := C;
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Ptr := Ptr + 1;
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if Ptr <= Max
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and then Switch_Chars (Ptr) = 's'
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then
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Last_Stored := Last_Stored + 1;
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Storing (Last_Stored) := 's';
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Ptr := Ptr + 1;
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end if;
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end if;
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end if;
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Add_Switch_Component
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(Storing (Storing'First .. Last_Stored));
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-- Multiple switches
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when 'V' | 'w' | 'y' =>
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Storing (First_Stored) := C;
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Ptr := Ptr + 1;
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if Ptr > Max then
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if C = 'y' then
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Add_Switch_Component
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(Storing (Storing'First .. First_Stored));
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else
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Last := 0;
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return;
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end if;
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end if;
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-- Loop through remaining switch characters in string
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while Ptr <= Max loop
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C := Switch_Chars (Ptr);
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Ptr := Ptr + 1;
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-- -gnatyMxxx
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if C = 'M' and then Storing (First_Stored) = 'y' then
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Last_Stored := First_Stored + 1;
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Storing (Last_Stored) := 'M';
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while Ptr <= Max loop
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C := Switch_Chars (Ptr);
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exit when C not in '0' .. '9';
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Last_Stored := Last_Stored + 1;
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Storing (Last_Stored) := C;
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Ptr := Ptr + 1;
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end loop;
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-- If there is no digit after -gnatyM,
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-- the switch is invalid.
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if Last_Stored = First_Stored + 1 then
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Last := 0;
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return;
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else
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Add_Switch_Component
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(Storing (Storing'First .. Last_Stored));
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end if;
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-- --gnatx.x
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elsif C = '.' and then Ptr <= Max then
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Storing (First_Stored + 1) := '.';
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Storing (First_Stored + 2) := Switch_Chars (Ptr);
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Ptr := Ptr + 1;
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Add_Switch_Component
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(Storing (Storing'First .. First_Stored + 2));
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-- All other switches are -gnatxx
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else
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Storing (First_Stored + 1) := C;
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Add_Switch_Component
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(Storing (Storing'First .. First_Stored + 1));
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end if;
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end loop;
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-- -gnat95 -gnat05
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when '0' | '9' =>
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Last_Stored := First_Stored;
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Storing (Last_Stored) := C;
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Ptr := Ptr + 1;
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if Ptr /= Max or else Switch_Chars (Ptr) /= '5' then
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-- Invalid switch
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Last := 0;
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return;
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else
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Last_Stored := Last_Stored + 1;
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Storing (Last_Stored) := '5';
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Add_Switch_Component
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(Storing (Storing'First .. Last_Stored));
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Ptr := Ptr + 1;
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end if;
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-- -gnat83
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when '8' =>
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Last_Stored := First_Stored;
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Storing (Last_Stored) := '8';
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Ptr := Ptr + 1;
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if Ptr /= Max or else Switch_Chars (Ptr) /= '3' then
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-- Invalid switch
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Last := 0;
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return;
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else
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Last_Stored := Last_Stored + 1;
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Storing (Last_Stored) := '3';
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Add_Switch_Component
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(Storing (Storing'First .. Last_Stored));
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Ptr := Ptr + 1;
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end if;
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-- Not a valid switch
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when others =>
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Last := 0;
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return;
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end case;
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end case;
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end loop;
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end Normalize_Compiler_Switches;
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function Normalize_Compiler_Switches
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(Switch_Chars : String) return Argument_List
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is
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Last : Natural;
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begin
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Normalize_Compiler_Switches (Switch_Chars, Global_Switches, Last);
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if Last = 0 then
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return (1 .. 0 => null);
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else
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return Global_Switches (Global_Switches'First .. Last);
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end if;
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end Normalize_Compiler_Switches;
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------------------------
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-- Scan_Make_Switches --
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------------------------
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procedure Scan_Make_Switches
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(Project_Node_Tree : Prj.Tree.Project_Node_Tree_Ref;
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Switch_Chars : String;
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Success : out Boolean)
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is
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Ptr : Integer := Switch_Chars'First;
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Max : constant Integer := Switch_Chars'Last;
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C : Character := ' ';
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begin
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-- Assume a good switch
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Success := True;
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-- Skip past the initial character (must be the switch character)
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if Ptr = Max then
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Bad_Switch (Switch_Chars);
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else
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Ptr := Ptr + 1;
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end if;
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-- A little check, "gnat" at the start of a switch is for the compiler
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if Switch_Chars'Length >= Ptr + 3
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and then Switch_Chars (Ptr .. Ptr + 3) = "gnat"
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then
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Success := False;
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return;
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end if;
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C := Switch_Chars (Ptr);
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-- Multiple character switches
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if Switch_Chars'Length > 2 then
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if Switch_Chars = "--create-missing-dirs" then
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Setup_Projects := True;
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elsif Switch_Chars'Length > Subdirs_Option'Length
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and then
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Switch_Chars
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(Switch_Chars'First ..
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Switch_Chars'First + Subdirs_Option'Length - 1) =
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Subdirs_Option
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then
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Subdirs :=
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new String'
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(Switch_Chars
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(Switch_Chars'First + Subdirs_Option'Length ..
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Switch_Chars'Last));
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elsif Switch_Chars (Ptr) = '-' then
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Bad_Switch (Switch_Chars);
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|
|
|
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;
|