------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- O P T -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2012, 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. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- . -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ with Gnatvsn; use Gnatvsn; with System; use System; with Tree_IO; use Tree_IO; package body Opt is SU : constant := Storage_Unit; -- Shorthand for System.Storage_Unit -------------------------- -- Full_Expander_Active -- -------------------------- function Full_Expander_Active return Boolean is begin return Expander_Active and not Alfa_Mode; end Full_Expander_Active; ---------------------------------- -- Register_Opt_Config_Switches -- ---------------------------------- procedure Register_Opt_Config_Switches is begin Ada_Version_Config := Ada_Version; Ada_Version_Explicit_Config := Ada_Version_Explicit; Assertions_Enabled_Config := Assertions_Enabled; Assume_No_Invalid_Values_Config := Assume_No_Invalid_Values; Check_Policy_List_Config := Check_Policy_List; Debug_Pragmas_Disabled_Config := Debug_Pragmas_Disabled; Debug_Pragmas_Enabled_Config := Debug_Pragmas_Enabled; Default_Pool_Config := Default_Pool; Dynamic_Elaboration_Checks_Config := Dynamic_Elaboration_Checks; Exception_Locations_Suppressed_Config := Exception_Locations_Suppressed; Extensions_Allowed_Config := Extensions_Allowed; External_Name_Exp_Casing_Config := External_Name_Exp_Casing; External_Name_Imp_Casing_Config := External_Name_Imp_Casing; Fast_Math_Config := Fast_Math; Initialize_Scalars_Config := Initialize_Scalars; Optimize_Alignment_Config := Optimize_Alignment; Persistent_BSS_Mode_Config := Persistent_BSS_Mode; Polling_Required_Config := Polling_Required; Short_Descriptors_Config := Short_Descriptors; Use_VADS_Size_Config := Use_VADS_Size; -- Reset the indication that Optimize_Alignment was set locally, since -- if we had a pragma in the config file, it would set this flag True, -- but that's not a local setting. Optimize_Alignment_Local := False; end Register_Opt_Config_Switches; --------------------------------- -- Restore_Opt_Config_Switches -- --------------------------------- procedure Restore_Opt_Config_Switches (Save : Config_Switches_Type) is begin Ada_Version := Save.Ada_Version; Ada_Version_Explicit := Save.Ada_Version_Explicit; Assertions_Enabled := Save.Assertions_Enabled; Assume_No_Invalid_Values := Save.Assume_No_Invalid_Values; Check_Policy_List := Save.Check_Policy_List; Debug_Pragmas_Disabled := Save.Debug_Pragmas_Disabled; Debug_Pragmas_Enabled := Save.Debug_Pragmas_Enabled; Default_Pool := Save.Default_Pool; Dynamic_Elaboration_Checks := Save.Dynamic_Elaboration_Checks; Exception_Locations_Suppressed := Save.Exception_Locations_Suppressed; Extensions_Allowed := Save.Extensions_Allowed; External_Name_Exp_Casing := Save.External_Name_Exp_Casing; External_Name_Imp_Casing := Save.External_Name_Imp_Casing; Fast_Math := Save.Fast_Math; Initialize_Scalars := Save.Initialize_Scalars; Optimize_Alignment := Save.Optimize_Alignment; Optimize_Alignment_Local := Save.Optimize_Alignment_Local; Persistent_BSS_Mode := Save.Persistent_BSS_Mode; Polling_Required := Save.Polling_Required; Short_Descriptors := Save.Short_Descriptors; Use_VADS_Size := Save.Use_VADS_Size; -- Update consistently the value of Init_Or_Norm_Scalars. The value of -- Normalize_Scalars is not saved/restored because after set to True its -- value is never changed. That is, if a compilation unit has pragma -- Normalize_Scalars then it forces that value for all with'ed units. Init_Or_Norm_Scalars := Initialize_Scalars or Normalize_Scalars; end Restore_Opt_Config_Switches; ------------------------------ -- Save_Opt_Config_Switches -- ------------------------------ procedure Save_Opt_Config_Switches (Save : out Config_Switches_Type) is begin Save.Ada_Version := Ada_Version; Save.Ada_Version_Explicit := Ada_Version_Explicit; Save.Assertions_Enabled := Assertions_Enabled; Save.Assume_No_Invalid_Values := Assume_No_Invalid_Values; Save.Check_Policy_List := Check_Policy_List; Save.Debug_Pragmas_Disabled := Debug_Pragmas_Disabled; Save.Debug_Pragmas_Enabled := Debug_Pragmas_Enabled; Save.Default_Pool := Default_Pool; Save.Dynamic_Elaboration_Checks := Dynamic_Elaboration_Checks; Save.Exception_Locations_Suppressed := Exception_Locations_Suppressed; Save.Extensions_Allowed := Extensions_Allowed; Save.External_Name_Exp_Casing := External_Name_Exp_Casing; Save.External_Name_Imp_Casing := External_Name_Imp_Casing; Save.Fast_Math := Fast_Math; Save.Initialize_Scalars := Initialize_Scalars; Save.Optimize_Alignment := Optimize_Alignment; Save.Optimize_Alignment_Local := Optimize_Alignment_Local; Save.Persistent_BSS_Mode := Persistent_BSS_Mode; Save.Polling_Required := Polling_Required; Save.Short_Descriptors := Short_Descriptors; Save.Use_VADS_Size := Use_VADS_Size; end Save_Opt_Config_Switches; ----------------------------- -- Set_Opt_Config_Switches -- ----------------------------- procedure Set_Opt_Config_Switches (Internal_Unit : Boolean; Main_Unit : Boolean) is begin -- Case of internal unit if Internal_Unit then -- Set standard switches. Note we do NOT set Ada_Version_Explicit -- since the whole point of this is that it still properly indicates -- the configuration setting even in a run time unit. Ada_Version := Ada_Version_Runtime; Dynamic_Elaboration_Checks := False; Extensions_Allowed := True; External_Name_Exp_Casing := As_Is; External_Name_Imp_Casing := Lowercase; Optimize_Alignment := 'O'; Persistent_BSS_Mode := False; Use_VADS_Size := False; Optimize_Alignment_Local := True; -- For an internal unit, assertions/debug pragmas are off unless this -- is the main unit and they were explicitly enabled. We also make -- sure we do not assume that values are necessarily valid. if Main_Unit then Assertions_Enabled := Assertions_Enabled_Config; Assume_No_Invalid_Values := Assume_No_Invalid_Values_Config; Debug_Pragmas_Disabled := Debug_Pragmas_Disabled_Config; Debug_Pragmas_Enabled := Debug_Pragmas_Enabled_Config; Check_Policy_List := Check_Policy_List_Config; else Assertions_Enabled := False; Assume_No_Invalid_Values := False; Debug_Pragmas_Disabled := False; Debug_Pragmas_Enabled := False; Check_Policy_List := Empty; end if; -- Case of non-internal unit else Ada_Version := Ada_Version_Config; Ada_Version_Explicit := Ada_Version_Explicit_Config; Assertions_Enabled := Assertions_Enabled_Config; Assume_No_Invalid_Values := Assume_No_Invalid_Values_Config; Check_Policy_List := Check_Policy_List_Config; Debug_Pragmas_Disabled := Debug_Pragmas_Disabled_Config; Debug_Pragmas_Enabled := Debug_Pragmas_Enabled_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; Fast_Math := Fast_Math_Config; Initialize_Scalars := Initialize_Scalars_Config; Optimize_Alignment := Optimize_Alignment_Config; Optimize_Alignment_Local := False; Persistent_BSS_Mode := Persistent_BSS_Mode_Config; Use_VADS_Size := Use_VADS_Size_Config; -- Update consistently the value of Init_Or_Norm_Scalars. The value -- of Normalize_Scalars is not saved/restored because once set to -- True its value is never changed. That is, if a compilation unit -- has pragma Normalize_Scalars then it forces that value for all -- with'ed units. Init_Or_Norm_Scalars := Initialize_Scalars or Normalize_Scalars; end if; Default_Pool := Default_Pool_Config; Exception_Locations_Suppressed := Exception_Locations_Suppressed_Config; Fast_Math := Fast_Math_Config; Optimize_Alignment := Optimize_Alignment_Config; Polling_Required := Polling_Required_Config; Short_Descriptors := Short_Descriptors_Config; end Set_Opt_Config_Switches; --------------- -- Tree_Read -- --------------- procedure Tree_Read is Tree_Version_String_Len : Nat; Ada_Version_Config_Val : Nat; Ada_Version_Explicit_Config_Val : Nat; Assertions_Enabled_Config_Val : Nat; begin Tree_Read_Int (Tree_ASIS_Version_Number); 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_Options'Size + SU - 1) / SU); Tree_Read_Bool (Verbose_Mode); Tree_Read_Data (Warning_Mode'Address, (Warning_Mode'Size + SU - 1) / SU); Tree_Read_Int (Ada_Version_Config_Val); Tree_Read_Int (Ada_Version_Explicit_Config_Val); Tree_Read_Int (Assertions_Enabled_Config_Val); Tree_Read_Bool (All_Errors_Mode); Tree_Read_Bool (Assertions_Enabled); Tree_Read_Int (Int (Check_Policy_List)); Tree_Read_Bool (Debug_Pragmas_Disabled); Tree_Read_Bool (Debug_Pragmas_Enabled); Tree_Read_Int (Int (Default_Pool)); Tree_Read_Bool (Full_List); Ada_Version_Config := Ada_Version_Type'Val (Ada_Version_Config_Val); Ada_Version_Explicit_Config := Ada_Version_Type'Val (Ada_Version_Explicit_Config_Val); Assertions_Enabled_Config := Boolean'Val (Assertions_Enabled_Config_Val); -- Read version string: we have to get the length first Tree_Read_Int (Tree_Version_String_Len); declare Tmp : String (1 .. Integer (Tree_Version_String_Len)); begin Tree_Read_Data (Tmp'Address, Tree_Version_String_Len); System.Strings.Free (Tree_Version_String); Free (Tree_Version_String); Tree_Version_String := new String'(Tmp); end; Tree_Read_Data (Distribution_Stub_Mode'Address, (Distribution_Stub_Mode'Size + SU - 1) / Storage_Unit); Tree_Read_Bool (Inline_Active); Tree_Read_Bool (Inline_Processing_Required); Tree_Read_Bool (List_Units); Tree_Read_Bool (Configurable_Run_Time_Mode); Tree_Read_Data (Operating_Mode'Address, (Operating_Mode'Size + SU - 1) / Storage_Unit); Tree_Read_Bool (Suppress_Checks); Tree_Read_Bool (Try_Semantics); Tree_Read_Data (Wide_Character_Encoding_Method'Address, (Wide_Character_Encoding_Method'Size + SU - 1) / SU); Tree_Read_Bool (Upper_Half_Encoding); Tree_Read_Bool (Force_ALI_Tree_File); end Tree_Read; ---------------- -- Tree_Write -- ---------------- procedure Tree_Write is Version_String : String := Gnat_Version_String; begin Tree_Write_Int (ASIS_Version_Number); 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_Options'Size + SU - 1) / SU); Tree_Write_Bool (Verbose_Mode); Tree_Write_Data (Warning_Mode'Address, (Warning_Mode'Size + SU - 1) / Storage_Unit); Tree_Write_Int (Ada_Version_Type'Pos (Ada_Version_Config)); Tree_Write_Int (Ada_Version_Type'Pos (Ada_Version_Explicit_Config)); Tree_Write_Int (Boolean'Pos (Assertions_Enabled_Config)); Tree_Write_Bool (All_Errors_Mode); Tree_Write_Bool (Assertions_Enabled); Tree_Write_Int (Int (Check_Policy_List)); Tree_Write_Bool (Debug_Pragmas_Disabled); Tree_Write_Bool (Debug_Pragmas_Enabled); Tree_Write_Int (Int (Default_Pool)); Tree_Write_Bool (Full_List); Tree_Write_Int (Int (Version_String'Length)); Tree_Write_Data (Version_String'Address, Version_String'Length); Tree_Write_Data (Distribution_Stub_Mode'Address, (Distribution_Stub_Mode'Size + SU - 1) / SU); Tree_Write_Bool (Inline_Active); Tree_Write_Bool (Inline_Processing_Required); Tree_Write_Bool (List_Units); Tree_Write_Bool (Configurable_Run_Time_Mode); Tree_Write_Data (Operating_Mode'Address, (Operating_Mode'Size + SU - 1) / SU); Tree_Write_Bool (Suppress_Checks); Tree_Write_Bool (Try_Semantics); Tree_Write_Data (Wide_Character_Encoding_Method'Address, (Wide_Character_Encoding_Method'Size + SU - 1) / SU); Tree_Write_Bool (Upper_Half_Encoding); Tree_Write_Bool (Force_ALI_Tree_File); end Tree_Write; end Opt;