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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- O P T --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2001, 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. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Ada.Exceptions; use Ada.Exceptions;
with Gnatvsn; use Gnatvsn;
with System; use System;
with Tree_IO; use Tree_IO;
package body Opt is
Tree_Version_String : String (Gnat_Version_String'Range);
-- Used to store the compiler version string read from a tree file to
-- check if it is the same as stored in the version ctring in Gnatvsn.
-- Therefore its length is taken directly from the version string in
-- Gnatvsn. If the length of the version string stored in the three is
-- different, then versions are for sure different.
Immediate_Errors : Boolean := True;
-- This is an obsolete flag that is no longer present in opt.ads. We
-- retain it here because this flag was written to the tree and there
-- is no point in making trees incomaptible just for the sake of saving
-- one byte of data. The value written is ignored.
----------------------------------
-- Register_Opt_Config_Switches --
----------------------------------
procedure Register_Opt_Config_Switches is
begin
Ada_83_Config := Ada_83;
Dynamic_Elaboration_Checks_Config := Dynamic_Elaboration_Checks;
Extensions_Allowed_Config := Extensions_Allowed;
External_Name_Exp_Casing_Config := External_Name_Exp_Casing;
External_Name_Imp_Casing_Config := External_Name_Imp_Casing;
Polling_Required_Config := Polling_Required;
Use_VADS_Size_Config := Use_VADS_Size;
end Register_Opt_Config_Switches;
---------------------------------
-- Restore_Opt_Config_Switches --
---------------------------------
procedure Restore_Opt_Config_Switches (Save : Config_Switches_Type) is
begin
Ada_83 := Save.Ada_83;
Ada_95 := not Ada_83;
Dynamic_Elaboration_Checks := Save.Dynamic_Elaboration_Checks;
Extensions_Allowed := Save.Extensions_Allowed;
External_Name_Exp_Casing := Save.External_Name_Exp_Casing;
External_Name_Imp_Casing := Save.External_Name_Imp_Casing;
Polling_Required := Save.Polling_Required;
Use_VADS_Size := Save.Use_VADS_Size;
end Restore_Opt_Config_Switches;
------------------------------
-- Save_Opt_Config_Switches --
------------------------------
procedure Save_Opt_Config_Switches (Save : out Config_Switches_Type) is
begin
Save.Ada_83 := Ada_83;
Save.Dynamic_Elaboration_Checks := Dynamic_Elaboration_Checks;
Save.Extensions_Allowed := Extensions_Allowed;
Save.External_Name_Exp_Casing := External_Name_Exp_Casing;
Save.External_Name_Imp_Casing := External_Name_Imp_Casing;
Save.Polling_Required := Polling_Required;
Save.Use_VADS_Size := Use_VADS_Size;
end Save_Opt_Config_Switches;
-----------------------------
-- Set_Opt_Config_Switches --
-----------------------------
procedure Set_Opt_Config_Switches (Internal_Unit : Boolean) is
begin
if Internal_Unit then
Ada_83 := False;
Ada_95 := True;
Dynamic_Elaboration_Checks := False;
Extensions_Allowed := True;
External_Name_Exp_Casing := As_Is;
External_Name_Imp_Casing := Lowercase;
Use_VADS_Size := False;
else
Ada_83 := Ada_83_Config;
Ada_95 := not Ada_83_Config;
Dynamic_Elaboration_Checks := Dynamic_Elaboration_Checks_Config;
Extensions_Allowed := Extensions_Allowed_Config;
External_Name_Exp_Casing := External_Name_Exp_Casing_Config;
External_Name_Imp_Casing := External_Name_Imp_Casing_Config;
Use_VADS_Size := Use_VADS_Size_Config;
end if;
Polling_Required := Polling_Required_Config;
end Set_Opt_Config_Switches;
---------------
-- Tree_Read --
---------------
procedure Tree_Read is
Tree_Version_String_Len : Nat;
begin
Tree_Read_Bool (Brief_Output);
Tree_Read_Bool (GNAT_Mode);
Tree_Read_Char (Identifier_Character_Set);
Tree_Read_Int (Maximum_File_Name_Length);
Tree_Read_Data (Suppress_Options'Address,
Suppress_Record'Object_Size / Storage_Unit);
Tree_Read_Bool (Verbose_Mode);
Tree_Read_Data (Warning_Mode'Address,
Warning_Mode_Type'Object_Size / Storage_Unit);
Tree_Read_Bool (Ada_83_Config);
Tree_Read_Bool (All_Errors_Mode);
Tree_Read_Bool (Assertions_Enabled);
Tree_Read_Bool (Enable_Overflow_Checks);
Tree_Read_Bool (Full_List);
-- Read and check version string
Tree_Read_Int (Tree_Version_String_Len);
if Tree_Version_String_Len = Tree_Version_String'Length then
Tree_Read_Data
(Tree_Version_String'Address, Tree_Version_String'Length);
end if;
if Tree_Version_String_Len /= Tree_Version_String'Length
or else Tree_Version_String /= Gnat_Version_String
then
Raise_Exception
(Program_Error'Identity, "Inconsistent versions of GNAT and ASIS");
end if;
Tree_Read_Data (Distribution_Stub_Mode'Address,
Distribution_Stub_Mode_Type'Object_Size / Storage_Unit);
Tree_Read_Bool (Immediate_Errors);
Tree_Read_Bool (Inline_Active);
Tree_Read_Bool (Inline_Processing_Required);
Tree_Read_Bool (List_Units);
Tree_Read_Bool (No_Run_Time);
Tree_Read_Data (Operating_Mode'Address,
Operating_Mode_Type'Object_Size / Storage_Unit);
Tree_Read_Bool (Suppress_Checks);
Tree_Read_Bool (Try_Semantics);
Tree_Read_Data (Wide_Character_Encoding_Method'Address,
WC_Encoding_Method'Object_Size / Storage_Unit);
Tree_Read_Bool (Upper_Half_Encoding);
Tree_Read_Bool (Force_ALI_Tree_File);
end Tree_Read;
----------------
-- Tree_Write --
----------------
procedure Tree_Write is
begin
Tree_Write_Bool (Brief_Output);
Tree_Write_Bool (GNAT_Mode);
Tree_Write_Char (Identifier_Character_Set);
Tree_Write_Int (Maximum_File_Name_Length);
Tree_Write_Data (Suppress_Options'Address,
Suppress_Record'Object_Size / Storage_Unit);
Tree_Write_Bool (Verbose_Mode);
Tree_Write_Data (Warning_Mode'Address,
Warning_Mode_Type'Object_Size / Storage_Unit);
Tree_Write_Bool (Ada_83_Config);
Tree_Write_Bool (All_Errors_Mode);
Tree_Write_Bool (Assertions_Enabled);
Tree_Write_Bool (Enable_Overflow_Checks);
Tree_Write_Bool (Full_List);
Tree_Write_Int (Int (Gnat_Version_String'Length));
Tree_Write_Data (Gnat_Version_String'Address,
Gnat_Version_String'Length);
Tree_Write_Data (Distribution_Stub_Mode'Address,
Distribution_Stub_Mode_Type'Object_Size / Storage_Unit);
Tree_Write_Bool (Immediate_Errors);
Tree_Write_Bool (Inline_Active);
Tree_Write_Bool (Inline_Processing_Required);
Tree_Write_Bool (List_Units);
Tree_Write_Bool (No_Run_Time);
Tree_Write_Data (Operating_Mode'Address,
Operating_Mode_Type'Object_Size / Storage_Unit);
Tree_Write_Bool (Suppress_Checks);
Tree_Write_Bool (Try_Semantics);
Tree_Write_Data (Wide_Character_Encoding_Method'Address,
WC_Encoding_Method'Object_Size / Storage_Unit);
Tree_Write_Bool (Upper_Half_Encoding);
Tree_Write_Bool (Force_ALI_Tree_File);
end Tree_Write;
end Opt;
|
