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Diffstat (limited to 'gcc-4.2.1/gcc/ada/opt.ads')
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diff --git a/gcc-4.2.1/gcc/ada/opt.ads b/gcc-4.2.1/gcc/ada/opt.ads deleted file mode 100644 index 91132998d..000000000 --- a/gcc-4.2.1/gcc/ada/opt.ads +++ /dev/null @@ -1,1362 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- O P T -- --- -- --- S p e c -- --- -- --- Copyright (C) 1992-2006, 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, 51 Franklin Street, Fifth Floor, -- --- Boston, MA 02110-1301, 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. -- --- -- ------------------------------------------------------------------------------- - --- This package contains global flags set by the initialization routine from --- the command line and referenced throughout the compiler, the binder, or --- other GNAT tools. The comments indicate which options are used by which --- programs (GNAT, GNATBIND, GNATLINK, GNATMAKE, GPRMAKE, etc). - -with Hostparm; use Hostparm; -with Types; use Types; - -with System.WCh_Con; use System.WCh_Con; -with GNAT.Strings; use GNAT.Strings; - -package Opt is - - ---------------------------------------------- - -- Settings of Modes for Current Processing -- - ---------------------------------------------- - - -- The following mode values represent the current state of processing. - -- The values set here are the default values. Unless otherwise noted, - -- the value may be reset in Switch-? with an appropropiate switch. In - -- some cases, the values can also be modified by pragmas, and in the - -- case of some binder variables, Gnatbind.Scan_Bind_Arg may modify - -- the default values. - - Ada_Bind_File : Boolean := True; - -- GNATBIND, GNATLINK - -- Set True if binder file to be generated in Ada rather than C - - type Ada_Version_Type is (Ada_83, Ada_95, Ada_05); - pragma Warnings (Off, Ada_Version_Type); - -- Versions of Ada for Ada_Version below. Note that these are ordered, - -- so that tests like Ada_Version >= Ada_95 are legitimate and useful. - -- The Warnings_Off pragma stops warnings for Ada_Version >= Ada_05, - -- which we want to allow, so that things work OK when Ada_15 is added! - -- This warning is now removed, so this pragma can be removed some time??? - - Ada_Version_Default : Ada_Version_Type := Ada_05; - -- GNAT - -- Default Ada version if no switch given - - Ada_Version : Ada_Version_Type := Ada_Version_Default; - -- GNAT - -- Current Ada version for compiler, as set by configuration pragmas, - -- compiler switches, or implicitly (to Ada_Version_Runtime) when a - -- predefined or internal file is compiled. - - Ada_Version_Explicit : Ada_Version_Type := Ada_Version_Default; - -- GNAT - -- Like Ada_Version, but does not get set implicitly for predefined - -- or internal units, so it reflects the Ada version explicitly set - -- using configuration pragmas or compiler switches (or if neither - -- appears, it remains set to Ada_Version_Default). This is used in - -- the rare cases (notably for pragmas Preelaborate_05 and Pure_05) - -- where in the run-time we want the explicit version set. - - Ada_Version_Runtime : Ada_Version_Type := Ada_05; - -- GNAT - -- Ada version used to compile the runtime. Used to set Ada_Version (but - -- not Ada_Version_Explicit) when compiling predefined or internal units. - - Ada_Final_Suffix : constant String := "final"; - Ada_Final_Name : String_Ptr := new String'("ada" & Ada_Final_Suffix); - -- GNATBIND - -- The name of the procedure that performs the finalization at the end of - -- execution. This variable may be modified by Gnatbind.Scan_Bind_Arg. - - Ada_Init_Suffix : constant String := "init"; - Ada_Init_Name : String_Ptr := new String'("ada" & Ada_Init_Suffix); - -- GNATBIND - -- The name of the procedure that performs initialization at the start - -- of execution. This variable may be modified by Gnatbind.Scan_Bind_Arg. - - Ada_Main_Name_Suffix : constant String := "main"; - -- GNATBIND - -- The suffix for Ada_Main_Name. Defined as a constant here so that it - -- can be referenced in a uniform manner to create either the default - -- value of Ada_Main_Name (declared below), or the non-default name - -- set by Gnatbind.Scan_Bind_Arg. - - Ada_Main_Name : String_Ptr := new String'("ada_" & Ada_Main_Name_Suffix); - -- GNATBIND - -- The name of the Ada package generated by the binder (when in Ada mode). - -- This variable may be modified by Gnatbind.Scan_Bind_Arg. - - Address_Clause_Overlay_Warnings : Boolean := True; - -- GNAT - -- Set False to disable address clause warnings - - Address_Is_Private : Boolean := False; - -- GNAT, GNATBIND - -- Set True if package System has the line "type Address is private;" - - All_Errors_Mode : Boolean := False; - -- GNAT - -- Flag set to force display of multiple errors on a single line and - -- also repeated error messages for references to undefined identifiers - -- and certain other repeated error messages. - - All_Sources : Boolean := False; - -- GNATBIND - -- Set to True to require all source files to be present. This flag is - -- directly modified by gnatmake to affect the shared binder routines. - - Alternate_Main_Name : String_Ptr := null; - -- GNATBIND - -- Set to non null when Bind_Alternate_Main_Name is True. This value - -- is modified as needed by Gnatbind.Scan_Bind_Arg. - - Assertions_Enabled : Boolean := False; - -- GNAT - -- Enable assertions made using pragma Assert - - ASIS_Mode : Boolean := False; - -- GNAT - -- Enable semantic checks and tree transformations that are important - -- for ASIS but that are usually skipped if Operating_Mode is set to - -- Check_Semantics. This flag does not have the corresponding option to set - -- it ON. It is set ON when Tree_Output is set ON, it can also be set ON - -- from the code of GNSA-based tool (a client may need to set ON the - -- Back_Annotate_Rep_Info flag in this case. At the moment this does not - -- make very much sense, because GNSA cannot do back annotation). - - Back_Annotate_Rep_Info : Boolean := False; - -- GNAT - -- If set True, enables back annotation of representation information - -- by gigi, even in -gnatc mode. This is set True by the use of -gnatR - -- (list representation information) or -gnatt (generate tree). It is - -- also set true if certain Unchecked_Conversion instantiations require - -- checking based on annotated values. - - Bind_Alternate_Main_Name : Boolean := False; - -- GNATBIND - -- True if main should be called Alternate_Main_Name.all. - -- This variable may be set to True by Gnatbind.Scan_Bind_Arg. - - Bind_Main_Program : Boolean := True; - -- GNATBIND - -- Set to False if not binding main Ada program - - Bind_For_Library : Boolean := False; - -- GNATBIND - -- Set to True if the binder needs to generate a file designed for - -- building a library. May be set to True by Gnatbind.Scan_Bind_Arg. - - Bind_Only : Boolean := False; - -- GNATMAKE, GPRMAKE - -- Set to True to skip compile and link steps - -- (except when Compile_Only and/or Link_Only are True). - - Blank_Deleted_Lines : Boolean := False; - -- GNAT, GNATPREP - -- Output empty lines for each line of preprocessed input that is deleted - -- in the output, including preprocessor lines starting with a '#'. - - Brief_Output : Boolean := False; - -- GNAT, GNATBIND - -- Force brief error messages to standard error, even if verbose mode is - -- set (so that main error messages go to standard output). - - Build_Bind_And_Link_Full_Project : Boolean := False; - -- GNATMAKE - -- Set to True to build, bind and link all the sources of a project file - -- (switch -B) - - Check_Object_Consistency : Boolean := False; - -- GNATBIND, GNATMAKE - -- Set to True to check whether every object file is consistent with - -- its corresponding ada library information (ALI) file. An object - -- file is inconsistent with the corresponding ALI file if the object - -- file does not exist or if it has an older time stamp than the ALI file. - -- Default above is for GNATBIND. GNATMAKE overrides this default to - -- True (see Make.Initialize) since we normally do need to check source - -- consistencies in gnatmake. - - Check_Only : Boolean := False; - -- GNATBIND - -- Set to True to do checks only, no output of binder file - - Check_Readonly_Files : Boolean := False; - -- GNATMAKE - -- Set to True to check readonly files during the make process - - Check_Source_Files : Boolean := True; - -- GNATBIND, GNATMAKE - -- Set to True to enable consistency checking for any source files that - -- are present (i.e. date must match the date in the library info file). - -- Set to False for object file consistency check only. This flag is - -- directly modified by gnatmake, to affect the shared binder routines. - - Check_Switches : Boolean := False; - -- GNATMAKE, GPRMAKE - -- Set to True to check compiler options during the make process - - Check_Unreferenced : Boolean := False; - -- GNAT - -- Set to True to enable checking for unreferenced entities other - -- than formal parameters (for which see Check_Unreferenced_Formals) - - Check_Unreferenced_Formals : Boolean := False; - -- GNAT - -- Set True to check for unreferenced formals. This is turned on by - -- -gnatwa/wf/wu and turned off by -gnatwA/wF/wU. - - Check_Withs : Boolean := False; - -- GNAT - -- Set to True to enable checking for unused withs, and also the case - -- of withing a package and using none of the entities in the package. - - Comment_Deleted_Lines : Boolean := False; - -- GNATPREP - -- True if source lines removed by the preprocessor should be commented - -- in the output file. - - Compile_Only : Boolean := False; - -- GNATMAKE, GNATCLEAN, GPRMAKE - -- GNATMAKE, GPRMAKE: set to True to skip bind and link steps (except when - -- Bind_Only is True). - -- GNATCLEAN: set to True to only the files produced by the compiler are to - -- be deleted, but not the library files or executable files. - - Config_File : Boolean := True; - -- GNAT - -- Set to False to inhibit reading and processing of gnat.adc file - - Config_File_Names : String_List_Access := null; - -- GNAT - -- Names of configuration pragmas files (given by switches -gnatec) - - Configurable_Run_Time_Mode : Boolean := False; - -- GNAT, GNATBIND - -- Set True if the compiler is operating in configurable run-time mode. - -- This happens if the flag Targparm.Configurable_Run_TimeMode_On_Target - -- is set True, or if pragma No_Run_Time is used. See the spec of Rtsfind - -- for details on the handling of the latter pragma. - - Constant_Condition_Warnings : Boolean := False; - -- GNAT - -- Set to True to activate warnings on constant conditions - - Create_Mapping_File : Boolean := False; - -- GNATMAKE, GPRMAKE - -- Set to True (-C switch) to indicate that the compiler will be invoked - -- with a mapping file (-gnatem compiler switch). - - Debug_Pragmas_Enabled : Boolean := False; - -- GNAT - -- Enable debug statements from pragma Debug - - subtype Debug_Level_Value is Nat range 0 .. 3; - Debugger_Level : Debug_Level_Value := 0; - -- GNATBIND - -- The value given to the -g parameter. The default value for -g with - -- no value is 2. This is usually ignored by GNATBIND, except in the - -- VMS version where it is passed as an argument to __gnat_initialize - -- to trigger the activation of the remote debugging interface. - -- Is this still true ??? - - Debug_Generated_Code : Boolean := False; - -- GNAT - -- Set True (-gnatD switch) to debug generated expanded code instead - -- of the original source code. Causes debugging information to be - -- written with respect to the generated code file that is written. - - Default_Exit_Status : Int := 0; - -- GNATBIND - -- Set the default exit status value. Set by the -Xnnn switch for the - -- binder. - - Default_Stack_Size : Int := -1; - -- GNATBIND - -- Set to default primary stack size in units of bytes. Set by - -- the -dnnn switch for the binder. A value of -1 indicates that no - -- default was set by the binder. - - Default_Sec_Stack_Size : Int := -1; - -- GNATBIND - -- Set to default secondary stack size in units of bytes. Set by - -- the -Dnnn switch for the binder. A value of -1 indicates that no - -- default was set by the binder, and that the default should be the - -- initial value of System.Secondary_Stack.Default_Secondary_Stack_Size. - - Detect_Blocking : Boolean := False; - -- GNAT - -- Set True to force the run time to raise Program_Error if calls to - -- potentially blocking operations are detected from protected actions. - - Display_Compilation_Progress : Boolean := False; - -- GNATMAKE, GPRMAKE - -- Set True (-d switch) to display information on progress while compiling - -- files. Internal flag to be used in conjunction with an IDE (e.g GPS). - - type Distribution_Stub_Mode_Type is - -- GNAT - (No_Stubs, - -- Normal mode, no generation/compilation of distribution stubs - - Generate_Receiver_Stub_Body, - -- The unit being compiled is the RCI body, and the compiler will - -- generate the body for the receiver stubs and compile it. - - Generate_Caller_Stub_Body); - -- The unit being compiled is the RCI spec, and the compiler will - -- generate the body for the caller stubs and compile it. - - Distribution_Stub_Mode : Distribution_Stub_Mode_Type := No_Stubs; - -- GNAT - -- This enumeration variable indicates the five states of distribution - -- annex stub generation/compilation. - - Do_Not_Execute : Boolean := False; - -- GNATMAKE - -- Set to True if no actual compilations should be undertaken. - - Dynamic_Elaboration_Checks : Boolean := False; - -- GNAT - -- Set True for dynamic elaboration checking mode, as set by the -gnatE - -- switch or by the use of pragma Elaboration_Checks (Dynamic). - - Dynamic_Stack_Measurement : Boolean := False; - -- GNATBIND - -- Set True to enable dynamic stack measurement (-u flag for gnatbind) - - Dynamic_Stack_Measurement_Array_Size : Nat := 100; - -- GNATBIND - -- Number of measurements we want to store during dynamic stack analysis. - -- When the buffer is full, non-storable results will be output on the fly. - -- The value is relevant only if Dynamic_Stack_Measurement is set. Set - -- by processing of -u flag for gnatbind. - - Elab_Dependency_Output : Boolean := False; - -- GNATBIND - -- Set to True to output complete list of elaboration constraints - - Elab_Order_Output : Boolean := False; - -- GNATBIND - -- Set to True to output chosen elaboration order - - Elab_Warnings : Boolean := False; - -- GNAT - -- Set to True to generate full elaboration warnings (-gnatwl) - - Enable_Overflow_Checks : Boolean := False; - -- GNAT - -- Set to True if -gnato (enable overflow checks) switch is set, - -- but not -gnatp. - - Exception_Locations_Suppressed : Boolean := False; - -- GNAT - -- This flag is set True if a Suppress_Exception_Locations configuration - -- pragma is currently active. - - type Exception_Mechanism_Type is - -- Determines the handling of exceptions. See Exp_Ch11 for details - -- - (Front_End_Setjmp_Longjmp_Exceptions, - -- Exceptions use setjmp/longjmp generated explicitly by the - -- front end (this includes gigi or other equivalent parts of - -- the code generator). AT END handlers are converted into - -- exception handlers by the front end in this mode. - - Back_End_Exceptions); - -- Exceptions are handled by the back end. The front end simply - -- generates the handlers as they appear in the source, and AT - -- END handlers are left untouched (they are not converted into - -- exception handlers when operating in this mode. - pragma Convention (C, Exception_Mechanism_Type); - - Exception_Mechanism : Exception_Mechanism_Type := - Front_End_Setjmp_Longjmp_Exceptions; - -- GNAT - -- Set to the appropriate value depending on the default as given in - -- system.ads (ZCX_By_Default, GCC_ZCX_Support). - -- The C convention is there to make this variable accessible to gigi. - - Exception_Tracebacks : Boolean := False; - -- GNATBIND - -- Set to True to store tracebacks in exception occurrences (-E) - - Extensions_Allowed : Boolean := False; - -- GNAT - -- Set to True by switch -gnatX if GNAT specific language extensions - -- are allowed. For example, "limited with" is a GNAT extension. - - type External_Casing_Type is ( - As_Is, -- External names cased as they appear in the Ada source - Uppercase, -- External names forced to all uppercase letters - Lowercase); -- External names forced to all lowercase letters - - External_Name_Imp_Casing : External_Casing_Type := Lowercase; - -- GNAT - -- The setting of this flag determines the casing of external names - -- when the name is implicitly derived from an entity name (i.e. either - -- no explicit External_Name or Link_Name argument is used, or, in the - -- case of extended DEC pragmas, the external name is given using an - -- identifier. The As_Is setting is not permitted here (since this would - -- create Ada source programs that were case sensitive). - - External_Name_Exp_Casing : External_Casing_Type := As_Is; - -- GNAT - -- The setting of this flag determines the casing of an external name - -- specified explicitly with a string literal. As_Is means the string - -- literal is used as given with no modification to the casing. If - -- Lowercase or Uppercase is set, then the string is forced to all - -- lowercase or all uppercase letters as appropriate. Note that this - -- setting has no effect if the external name is given using an identifier - -- in the case of extended DEC import/export pragmas (in this case the - -- casing is controlled by External_Name_Imp_Casing), and also has no - -- effect if an explicit Link_Name is supplied (a link name is always - -- used exactly as given). - - External_Unit_Compilation_Allowed : Boolean := False; - -- GNATMAKE - -- When True (set by gnatmake switch -x), allow compilation of sources - -- that are not part of any project file. - - Float_Format : Character := ' '; - -- GNAT - -- A non-blank value indicates that a Float_Format pragma has been - -- processed, in which case this variable is set to 'I' for IEEE or - -- to 'V' for VAX. The setting of 'V' is only possible on OpenVMS - -- versions of GNAT. - - Float_Format_Long : Character := ' '; - -- GNAT - -- A non-blank value indicates that a Long_Float pragma has been - -- processed (this pragma is recognized only in OpenVMS versions - -- of GNAT), in which case this variable is set to D or G for - -- D_Float or G_Float. - - Force_ALI_Tree_File : Boolean := False; - -- GNAT - -- Force generation of ALI file even if errors are encountered. - -- Also forces generation of tree file if -gnatt is also set. - - Force_Checking_Of_Elaboration_Flags : Boolean := False; - -- GNATBIND - -- True if binding with forced checking of the elaboration flags - -- (-F switch set). - - Force_Compilations : Boolean := False; - -- GNATMAKE, GPRMAKE - -- Set to force recompilations even when the objects are up-to-date. - - Full_Path_Name_For_Brief_Errors : Boolean := False; - -- GNAT, GNATMAKE, GNATCLEAN, GPRMAKE - -- When True, in Brief_Output mode, each error message line - -- will start with the full path name of the source. - -- When False, only the file name without directory information - -- is used. - - Full_List : Boolean := False; - -- GNAT - -- Set True to generate full source listing with embedded errors - - function get_gcc_version return Int; - pragma Import (C, get_gcc_version, "get_gcc_version"); - - GCC_Version : constant Nat := get_gcc_version; - -- GNATMAKE - -- Indicates which version of gcc is in use (2 = 2.8.1, 3 = 3.x) - - Global_Discard_Names : Boolean := False; - -- GNAT, GNATBIND - -- Set true if a pragma Discard_Names applies to the current unit - - GNAT_Mode : Boolean := False; - -- GNAT - -- True if compiling in GNAT system mode (-gnatg switch) - - HLO_Active : Boolean := False; - -- GNAT - -- True if High Level Optimizer is activated (-gnatH switch) - - Implementation_Unit_Warnings : Boolean := True; - -- GNAT - -- Set True to active warnings for use of implementation internal units. - -- Can be controlled by use of -gnatwi/-gnatwI. - - Identifier_Character_Set : Character; - -- GNAT - -- This variable indicates the character set to be used for identifiers. - -- The possible settings are: - -- '1' Latin-5 (ISO-8859-1) - -- '2' Latin-5 (ISO-8859-2) - -- '3' Latin-5 (ISO-8859-3) - -- '4' Latin-5 (ISO-8859-4) - -- '5' Latin-5 (ISO-8859-5, Cyrillic) - -- '9' Latin-5 (ISO-8859-9) - -- 'p' PC (US, IBM page 437) - -- '8' PC (European, IBM page 850) - -- 'f' Full upper set (all distinct) - -- 'n' No upper characters (Ada 83 rules) - -- 'w' Latin-1 plus wide characters allowed in identifiers - -- - -- The setting affects the set of letters allowed in identifiers and the - -- upper/lower case equivalences. It does not affect the interpretation of - -- character and string literals, which are always stored using the actual - -- coding in the source program. This variable is initialized to the - -- default value appropriate to the system (in Osint.Initialize), and then - -- reset if a command line switch is used to change the setting. - - Ineffective_Inline_Warnings : Boolean := False; - -- GNAT - -- Set True to activate warnings if front-end inlining (-gnatN) is not - -- able to actually inline a particular call (or all calls). Can be - -- controlled by use of -gnatwp/-gnatwP. - - Init_Or_Norm_Scalars : Boolean := False; - -- GNAT, GANTBIND - -- Set True if a pragma Initialize_Scalars applies to the current unit. - -- Also set True if a pragma Normalize_Scalars applies. - - Initialize_Scalars : Boolean := False; - -- GNAT - -- Set True if a pragma Initialize_Scalars applies to the current unit. - -- Note that Init_Or_Norm_Scalars is also set to True if this is True. - - Initialize_Scalars_Mode1 : Character := 'I'; - Initialize_Scalars_Mode2 : Character := 'N'; - -- GNATBIND - -- Set to two characters from -S switch (IN/LO/HI/EV/xx). The default - -- is IN (invalid values), used if no -S switch is used. - - Inline_Active : Boolean := False; - -- GNAT - -- Set True to activate pragma Inline processing across modules. Default - -- for now is not to inline across module boundaries. - - Interface_Library_Unit : Boolean := False; - -- GNATBIND - -- Set to True to indicate that at least one ALI file is an interface ALI: - -- then elaboration flag checks are to be generated in the binder - -- generated file. - - Follow_Links : Boolean := False; - -- GNATMAKE - -- Set to True (-eL) to process the project files in trusted mode - - Front_End_Inlining : Boolean := False; - -- GNAT - -- Set True to activate inlining by front-end expansion - - Inline_Processing_Required : Boolean := False; - -- GNAT - -- Set True if inline processing is required. Inline processing is - -- required if an active Inline pragma is processed. The flag is set - -- for a pragma Inline or Inline_Always that is actually active. - - In_Place_Mode : Boolean := False; - -- GNATMAKE - -- Set True to store ALI and object files in place ie in the object - -- directory if these files already exist or in the source directory - -- if not. - - Keep_Going : Boolean := False; - -- GNATMAKE, GPRMAKE - -- When True signals to ignore compilation errors and keep - -- processing sources until there is no more work. - - Keep_Temporary_Files : Boolean := False; - -- GNATCMD - -- When True the temporary files created by the GNAT driver are not - -- deleted. Set by switch -dn or qualifier /KEEP_TEMPORARY_FILES. - - Link_Only : Boolean := False; - -- GNATMAKE, GPRMAKE - -- Set to True to skip compile and bind steps - -- (except when Bind_Only is set to True). - - List_Restrictions : Boolean := False; - -- GNATBIND - -- Set to True to list restrictions pragmas that could apply to partition - - List_Units : Boolean := False; - -- GNAT - -- List units in the active library for a compilation (-gnatu switch) - - List_Dependencies : Boolean := False; - -- GNATMAKE - -- When True gnatmake verifies that the objects are up to date and - -- outputs the list of object dependencies (-M switch). - -- Output depends if -a switch is used or not. - -- This list can be used directly in a Makefile. - - List_Representation_Info : Int range 0 .. 3 := 0; - -- GNAT - -- Set non-zero by -gnatR switch to list representation information. - -- The settings are as follows: - -- - -- 0 = no listing of representation information (default as above) - -- 1 = list rep info for user defined record and array types - -- 2 = list rep info for all user defined types and objects - -- 3 = like 2, but variable fields are decoded symbolically - - List_Representation_Info_To_File : Boolean := False; - -- GNAT - -- Set true by -gnatRs switch. Causes information from -gnatR/1/2/3 - -- to be written to file.rep (where file is the name of the source - -- file) instead of stdout. For example, if file x.adb is compiled - -- using -gnatR2s then representation info is written to x.adb.ref. - - List_Representation_Info_Mechanisms : Boolean := False; - -- GNAT - -- Set true by -gnatRm switch. Causes information on mechanisms to - -- be included in the representation output information. - - List_Preprocessing_Symbols : Boolean := False; - -- GNAT, GNATPREP - -- Set to True if symbols for preprocessing a source are to be listed - -- before preprocessing occurs. Set to True by switch -s of gnatprep - -- or -s in preprocessing data file for the compiler. - - type Creat_Repinfo_File_Proc is access procedure (Src : File_Name_Type); - type Write_Repinfo_Line_Proc is access procedure (Info : String); - type Close_Repinfo_File_Proc is access procedure; - -- Types used for procedure addresses below - - Creat_Repinfo_File_Access : Creat_Repinfo_File_Proc := null; - Write_Repinfo_Line_Access : Write_Repinfo_Line_Proc := null; - Close_Repinfo_File_Access : Close_Repinfo_File_Proc := null; - -- GNAT - -- These three locations are left null when operating in non-compiler - -- (e.g. ASIS mode), but when operating in compiler mode, they are - -- set to point to the three corresponding procedures in Osint. The - -- reason for this slightly strange interface is to prevent Repinfo - -- from dragging in Osint in ASIS mode, which would include a lot of - -- unwanted units in the ASIS build. - - Locking_Policy : Character := ' '; - -- GNAT, GNATBIND - -- Set to ' ' for the default case (no locking policy specified). - -- Reset to first character (uppercase) of locking policy name if a - -- valid pragma Locking_Policy is encountered. - - Locking_Policy_Sloc : Source_Ptr := No_Location; - -- GNAT, GNATBIND - -- Remember location of previous Locking_Policy pragma. This is used - -- for inconsistency error messages. A value of System_Location is - -- used if the policy is set in package System. - - Look_In_Primary_Dir : Boolean := True; - -- GNAT, GNATBIND, GNATMAKE, GNATCLEAN - -- Set to False if a -I- was present on the command line. - -- When True we are allowed to look in the primary directory to locate - -- other source or library files. - - Make_Steps : Boolean := False; - -- GNATMAKE - -- Set to True when either Compile_Only, Bind_Only or Link_Only is - -- set to True. - - Main_Index : Int := 0; - -- GNATMAKE - -- This is set to non-zero by gnatmake switch -eInnn to indicate that - -- the main program is the nnn unit in a multi-unit source file. - - Mapping_File_Name : String_Ptr := null; - -- GNAT - -- File name of mapping between unit names, file names and path names. - -- (given by switch -gnatem) - - Maximum_Errors : Int := 9999; - -- GNAT, GNATBIND - -- Maximum default number of errors before compilation is terminated. - -- Can be overridden using -gnatm (GNAT) or -m (GNATBIND) switch. - - Maximum_File_Name_Length : Int; - -- GNAT, GNATBIND - -- Maximum number of characters allowed in a file name, not counting the - -- extension, as set by the appropriate switch. If no switch is given, - -- then this value is initialized by Osint to the appropriate value. - - Maximum_Processes : Positive := 1; - -- GNATMAKE, GPRMAKE - -- Maximum number of processes that should be spawned to carry out - -- compilations. - - Minimal_Recompilation : Boolean := False; - -- GNATMAKE - -- Set to True if minimal recompilation mode requested - - Multiple_Unit_Index : Int; - -- GNAT - -- This is set non-zero if the current unit is being compiled in multiple - -- unit per file mode, meaning that the current unit is selected from the - -- sequence of units in the current source file, using the value stored - -- in this variable (e.g. 2 = select second unit in file). A value of - -- zero indicates that we are in normal (one unit per file) mode. - - No_Main_Subprogram : Boolean := False; - -- GNATMAKE, GNATBIND - -- Set to True if compilation/binding of a program without main - -- subprogram requested. - - No_Run_Time_Mode : Boolean := False; - -- GNAT, GNATBIND - -- This flag is set True if a No_Run_Time pragma is encountered. See - -- spec of Rtsfind for a full description of handling of this pragma. - - No_Stdinc : Boolean := False; - -- GNAT, GNATBIND, GNATMAKE, GNATFIND, GNATXREF - -- Set to True if no default source search dirs added to search list - - No_Stdlib : Boolean := False; - -- GNATMAKE, GNATBIND, GNATFIND, GNATXREF - -- Set to True if no default library search dirs added to search list - - No_Strict_Aliasing : Boolean := False; - -- GNAT - -- Set True if pragma No_Strict_Aliasing with no parameters encountered - - Normalize_Scalars : Boolean := False; - -- GNAT, GNATBIND - -- Set True if a pragma Normalize_Scalars applies to the current unit. - -- Note that Init_Or_Norm_Scalars is also set to True if this is True. - - Object_Directory_Present : Boolean := False; - -- GNATMAKE - -- Set to True when an object directory is specified with option -D - - type Operating_Mode_Type is (Check_Syntax, Check_Semantics, Generate_Code); - Operating_Mode : Operating_Mode_Type := Generate_Code; - -- GNAT - -- Indicates the operating mode of the compiler. The default is generate - -- code, which runs the parser, semantics and backend. Switches can be - -- used to set syntax checking only mode, or syntax and semantics checking - -- only mode. Operating_Mode can also be modified as a result of detecting - -- errors during the compilation process. In particular if any serious - -- error is detected then this flag is reset from Generate_Code to - -- Check_Semantics after generating an error message. - - Original_Operating_Mode : Operating_Mode_Type := Generate_Code; - -- GNAT - -- Indicates the original operating mode of the compiler as set by - -- compiler options. This is identical to Operating_Mode except that - -- this is not affected by errors. - - Optimization_Level : Int; - pragma Import (C, Optimization_Level, "optimize"); - -- This constant reflects the optimization level (0,1,2 for -O0,-O1,-O2) - - Output_File_Name_Present : Boolean := False; - -- GNATBIND, GNAT, GNATMAKE, GPRMAKE - -- Set to True when the output C file name is given with option -o - -- for GNATBIND, when the object file name is given with option - -- -gnatO for GNAT or when the executable is given with option -o - -- for GNATMAKE or GPRMAKE. - - Output_Linker_Option_List : Boolean := False; - -- GNATBIND - -- True if output of list of linker options is requested (-K switch set) - - Output_Object_List : Boolean := False; - -- GNATBIND - -- True if output of list of objects is requested (-O switch set) - - Persistent_BSS_Mode : Boolean := False; - -- GNAT - -- True if a Persistent_BSS configuration pragma is in effect, causing - -- potentially persistent data to be placed in the persistent_bss section. - - Pessimistic_Elab_Order : Boolean := False; - -- GNATBIND - -- True if pessimistic elaboration order is to be chosen (-p switch set) - - Polling_Required : Boolean := False; - -- GNAT - -- Set to True if polling for asynchronous abort is enabled by using - -- the -gnatP option for GNAT. - - Preprocessing_Data_File : String_Ptr := null; - -- GNAT - -- Set by switch -gnatep=. The file name of the prepocessing data file. - - Print_Generated_Code : Boolean := False; - -- GNAT - -- Set to True to enable output of generated code in source form. This - -- flag is set by the -gnatG switch. - - Print_Standard : Boolean := False; - -- GNAT - -- Set to true to enable printing of package standard in source form. - -- This flag is set by the -gnatS switch - - Propagate_Exceptions : Boolean := False; - -- GNAT - -- Indicates if subprogram descriptor exception tables should be - -- built for imported subprograms. Set True if a Propagate_Exceptions - -- pragma applies to the extended main unit. - - type Usage is (Unknown, Not_In_Use, In_Use); - Project_File_In_Use : Usage := Unknown; - -- GNAT - -- Indicates if a project file is used or not. - -- Set to In_Use by the first SFNP pragma. - - Queuing_Policy : Character := ' '; - -- GNAT, GNATBIND - -- Set to ' ' for the default case (no queuing policy specified). - -- Reset to first character (uppercase) of locking policy name if a valid - -- Queuing_Policy pragma is encountered. - - Queuing_Policy_Sloc : Source_Ptr := No_Location; - -- GNAT, GNATBIND - -- Remember location of previous Queuing_Policy pragma. This is used - -- for inconsistency error messages. A value of System_Location is - -- used if the policy is set in package System. - - Quiet_Output : Boolean := False; - -- GNATMAKE, GNATCLEAN, GPRMAKE - -- Set to True if the tool should not have any output if there are no - -- errors or warnings. - - Replace_In_Comments : Boolean := False; - -- GNATPREP - -- Set to True if -C switch used - - RTS_Lib_Path_Name : String_Ptr := null; - RTS_Src_Path_Name : String_Ptr := null; - -- GNAT - -- Set to the "adalib" and "adainclude" directories of the run time - -- specified by --RTS=. - - RTS_Switch : Boolean := False; - -- GNAT, GNATMAKE, GNATBIND, GNATLS, GNATFIND, GNATXREF - -- Set to True when the --RTS switch is set - - Run_Path_Option : Boolean := True; - -- GNATMAKE, GNATLINK - -- Set to False when no run_path_option should be issued to the linker - - Search_Directory_Present : Boolean := False; - -- GNAT - -- Set to True when argument is -I. Reset to False when next argument, - -- a search directory path is taken into account. Note that this is - -- quite different from other switches in this section in that it is - -- only set in a transitory manner as a result of scanning a -I switch - -- with no file name, and if set, is an indication that the next argument - -- is to be treated as a file name. - - Sec_Stack_Used : Boolean := False; - -- GNAT, GBATBIND - -- Set True if generated code uses the System.Secondary_Stack package. - -- For the binder, set if any unit uses the secondary stack package. - - Setup_Projects : Boolean := False; - -- GNAT DRIVER - -- Set to True for GNAT SETUP: the Project Manager creates non existing - -- object, library and exec directories. - - Shared_Libgnat : Boolean; - -- GNATBIND - -- Set to True if a shared libgnat is requested by using the -shared - -- option for GNATBIND and to False when using the -static option. The - -- value of this flag is set by Gnatbind.Scan_Bind_Arg. - - Stack_Checking_Enabled : Boolean; - -- GNAT - -- Set to indicate if -fstack-check switch is set for the compilation. True - -- means that the switch is set, so that stack checking is enabled. False - -- means that the switch is not set (no stack checking). This value is - -- obtained from the external imported value flag_stack_check in the gcc - -- backend (see Frontend) and may be referenced throughout the compilation - -- phases. - - Style_Check : Boolean := False; - -- GNAT - -- Set True to perform style checks. Activates checks carried out - -- in package Style (see body of this package for details of checks) - -- This flag is set True by either the -gnatg or -gnaty switches. - - System_Extend_Pragma_Arg : Node_Id := Empty; - -- GNAT - -- Set non-empty if and only if a correct Extend_System pragma was present - -- in which case it points to the argument of the pragma, and the name can - -- be located as Chars (Expression (System_Extend_Pragma_Arg)). - - System_Extend_Unit : Node_Id := Empty; - -- GNAT - -- This is set to Empty if GNAT_Mode is set, since pragma Extend_System - -- is never appropriate in GNAT_Mode (and causes troubles, including - -- bogus circularities, if we try to compile the run-time library with - -- a System extension). If GNAT_Mode is not set, then System_Extend_Unit - -- is a copy of the value set in System_Extend_Pragma_Arg. - - Subunits_Missing : Boolean := False; - -- GNAT - -- This flag is set true if missing subunits are detected with code - -- generation active. This causes code generation to be skipped. - - Suppress_Checks : Boolean := False; - -- GNAT - -- Set to True if -gnatp (suppress all checks) switch present. - - Suppress_Options : Suppress_Array; - -- GNAT - -- Flags set True to suppress corresponding check, i.e. add an implicit - -- pragma Suppress at the outer level of each unit compiled. Note that - -- these suppress actions can be overridden by the use of the Unsuppress - -- pragma. This variable is initialized by Osint.Initialize. - - Suppress_Back_Annotation : Boolean := False; - -- GNAT - -- This flag is set True if back annotation of representation information - -- is to be suppressed. This is set if neither -gnatt or -gnatR0-3 is set. - -- This avoids unnecessary time being spent on back annotation. - - Table_Factor : Int := 1; - -- GNAT - -- Factor by which all initial table sizes set in Alloc are multiplied. - -- Used in Table to calculate initial table sizes (the initial table size - -- is the value in Alloc, used as the Table_Initial parameter value, - -- multiplied by the factor given here. The default value is used if no - -- -gnatT switch appears. - - Task_Dispatching_Policy : Character := ' '; - -- GNAT, GNATBIND - -- Set to ' ' for the default case (no task dispatching policy specified). - -- Reset to first character (uppercase) of task dispatching policy name - -- if a valid Task_Dispatching_Policy pragma is encountered. - - Task_Dispatching_Policy_Sloc : Source_Ptr := No_Location; - -- GNAT, GNATBIND - -- Remember location of previous Task_Dispatching_Policy pragma. This is - -- used for inconsistency error messages. A value of System_Location is - -- used if the policy is set in package System. - - Tasking_Used : Boolean := False; - -- Set True if any tasking construct is encountered. Used to activate the - -- output of the Q, L and T lines in ALI files. - - Time_Slice_Set : Boolean := False; - -- GNATBIND - -- Set True if a pragma Time_Slice is processed in the main unit, or - -- if the -gnatTnn switch is present to set a time slice value. - - Time_Slice_Value : Nat; - -- GNATBIND - -- Time slice value. Valid only if Time_Slice_Set is True, i.e. if - -- Time_Slice pragma has been processed. Set to the time slice value in - -- microseconds. Negative values are stored as zero, and the value is not - -- larger than 1_000_000_000 (1000 seconds). Values larger than this are - -- reset to this maximum. This can also be set with the -gnatTnn switch. - - Tolerate_Consistency_Errors : Boolean := False; - -- GNATBIND - -- Tolerate time stamp and other consistency errors. If this flag is set to - -- True (-t), then inconsistencies result in warnings rather than errors. - - Tree_Output : Boolean := False; - -- GNAT - -- Set to True (-gnatt) to generate output tree file - - Try_Semantics : Boolean := False; - -- GNAT - -- Flag set to force attempt at semantic analysis, even if parser errors - -- occur. This will probably cause blowups at this stage in the game. On - -- the other hand, most such blowups will be caught cleanly and simply - -- say compilation abandoned. This flag is set to True by -gnatq or -gnatQ. - - Undefined_Symbols_Are_False : Boolean := False; - -- GNAT, GNATPREP - -- Set to True by switch -u of gnatprep or -u in the preprocessing data - -- file for the compiler. Indicates that while preprocessing sources, - -- symbols that are not defined have the value FALSE. - - Unique_Error_Tag : Boolean := Tag_Errors; - -- GNAT - -- Indicates if error messages are to be prefixed by the string error: - -- Initialized from Tag_Errors, can be forced on with the -gnatU switch. - - Universal_Addressing_On_AAMP : Boolean := False; - -- GNAAMP - -- Indicates if library-level objects should be accessed and updated using - -- universal addressing instructions on the AAMP architecture. This flag is - -- set to True when pragma Universal_Data is given as a configuration - -- pragma. - - Unreserve_All_Interrupts : Boolean := False; - -- GNAT, GNATBIND - -- Normally set False, set True if a valid Unreserve_All_Interrupts pragma - -- appears anywhere in the main unit for GNAT, or if any ALI file has the - -- corresponding attribute set in GNATBIND. - - Upper_Half_Encoding : Boolean := False; - -- GNAT - -- Normally set False, indicating that upper half ASCII characters are - -- used in the normal way to represent themselves. If the wide character - -- encoding method uses the upper bit for this encoding, then this flag is - -- set True, and upper half characters in the source indicate the start of - -- a wide character sequence. - - Usage_Requested : Boolean := False; - -- GNAT, GNATBIND, GNATMAKE - -- Set to True if -h (-gnath for the compiler) switch encountered - -- requesting usage information - - Use_Pragma_Linker_Constructor : Boolean := False; - -- GNATBIND - -- True if pragma Linker_Constructor applies to adainit - - Use_VADS_Size : Boolean := False; - -- GNAT - -- Set to True if a valid pragma Use_VADS_Size is processed - - Validity_Checks_On : Boolean := True; - -- GNAT - -- This flag determines if validity checking is on or off. The initial - -- state is on, and the required default validity checks are active. The - -- actual set of checks that is performed if Validity_Checks_On is set is - -- defined by the switches in package Validsw. The Validity_Checks_On flag - -- is controlled by pragma Validity_Checks (On | Off), and also some - -- generated compiler code (typically code that has to do with validity - -- check generation) is compiled with this flag set to False. This flag is - -- set to False by the -gnatp switch. - - Verbose_Mode : Boolean := False; - -- GNAT, GNATBIND, GNATMAKE, GNATLINK, GNATLS, GNATNAME, GNATCLEAN, - -- GPRMAKE - -- Set to True to get verbose mode (full error message text and location - -- information sent to standard output, also header, copyright and summary) - - type Verbosity_Level_Type is (None, Low, Medium, High); - Verbosity_Level : Verbosity_Level_Type := High; - -- GNATMAKE, GPRMAKE - -- Modified by gnatmake or gprmake switches -v, -vl, -vm, -vh. Indicates - -- the level of verbosity of informational messages: - -- - -- In Low Verbosity, the reasons why a source is recompiled, the name - -- of the executable and the reason it must be rebuilt is output. - -- - -- In Medium Verbosity, additional lines are output for each ALI file - -- that is checked. - -- - -- In High Verbosity, additional lines are output when the ALI file - -- is part of an Ada library, is read-only or is part of the runtime. - - Warn_On_Ada_2005_Compatibility : Boolean := True; - -- GNAT - -- Set to True to active all warnings on Ada 2005 compatibility issues, - -- including warnings on Ada 2005 obsolescent features used in Ada 2005 - -- mode. Set False by -gnatwY. - - Warn_On_Bad_Fixed_Value : Boolean := False; - -- GNAT - -- Set to True to generate warnings for static fixed-point expression - -- values that are not an exact multiple of the small value of the type. - - Warn_On_Constant : Boolean := False; - -- GNAT - -- Set to True to generate warnings for variables that could be declared - -- as constants. Modified by use of -gnatwk/K. - - Warn_On_Dereference : Boolean := False; - -- GNAT - -- Set to True to generate warnings for implicit dereferences for array - -- indexing and record component access. Modified by use of -gnatwd/D. - - Warn_On_Export_Import : Boolean := True; - -- GNAT - -- Set to True to generate warnings for suspicious use of export or - -- import pragmas. Modified by use of -gnatwx/X. - - Warn_On_Hiding : Boolean := False; - -- GNAT - -- Set to True to generate warnings if a declared entity hides another - -- entity. The default is that this warning is suppressed. - - Warn_On_Modified_Unread : Boolean := False; - -- GNAT - -- Set to True to generate warnings if a variable is assigned but is never - -- read. The default is that this warning is suppressed. - - Warn_On_No_Value_Assigned : Boolean := True; - -- GNAT - -- Set to True to generate warnings if no value is ever assigned to a - -- variable that is at least partially uninitialized. Set to false to - -- suppress such warnings. The default is that such warnings are enabled. - - Warn_On_Obsolescent_Feature : Boolean := False; - -- GNAT - -- Set to True to generate warnings on use of any feature in Annex or if a - -- subprogram is called for which a pragma Obsolescent applies. - - Warn_On_Redundant_Constructs : Boolean := False; - -- GNAT - -- Set to True to generate warnings for redundant constructs (e.g. useless - -- assignments/conversions). The default is that this warning is disabled. - - Warn_On_Unchecked_Conversion : Boolean := True; - -- GNAT - -- Set to True to generate warnings for unchecked conversions that may have - -- non-portable semantics (e.g. because sizes of types differ). The default - -- is that this warning is enabled. - - Warn_On_Unrecognized_Pragma : Boolean := True; - -- GNAT - -- Set to True to generate warnings for unrecognized pragmas. The default - -- is that this warning is enabled. - - type Warning_Mode_Type is (Suppress, Normal, Treat_As_Error); - Warning_Mode : Warning_Mode_Type := Normal; - -- GNAT, GNATBIND - -- Controls treatment of warning messages. If set to Suppress, warning - -- messages are not generated at all. In Normal mode, they are generated - -- but do not count as errors. In Treat_As_Error mode, warning messages - -- are generated and are treated as errors. - - Wide_Character_Encoding_Method : WC_Encoding_Method := WCEM_Brackets; - -- GNAT - -- Method used for encoding wide characters in the source program. See - -- description of type in unit System.WCh_Con for a list of the methods - -- that are currently supported. Note that brackets notation is always - -- recognized in source programs regardless of the setting of this - -- variable. The default setting causes only the brackets notation to be - -- recognized. If this is the main unit, this setting also controls the - -- output of the W=? parameter in the ALI file, which is used to provide - -- the default for Wide_Text_IO files. - - Xref_Active : Boolean := True; - -- GNAT - -- Set if cross-referencing is enabled (i.e. xref info in ALI files) - - ---------------------------- - -- Configuration Settings -- - ---------------------------- - - -- These are settings that are used to establish the mode at the start of - -- each unit. The values defined below can be affected either by command - -- line switches, or by the use of appropriate configuration pragmas in the - -- gnat.adc file. - - Ada_Version_Config : Ada_Version_Type; - -- GNAT - -- This is the value of the configuration switch for the Ada 83 mode, as - -- set by the command line switches -gnat83/95/05, and possibly modified by - -- the use of configuration pragmas Ada_83/Ada95/Ada05. This switch is used - -- to set the initial value for Ada_Version mode at the start of analysis - -- of a unit. Note however, that the setting of this flag is ignored for - -- internal and predefined units (which are always compiled in the most up - -- to date version of Ada). - - Ada_Version_Explicit_Config : Ada_Version_Type; - -- GNAT - -- This is set in the same manner as Ada_Version_Config. The difference is - -- that the setting of this flag is not ignored for internal and predefined - -- units, which for some purposes do indeed access this value, regardless - -- of the fact that they are compiled the the most up to date ada version). - - Assertions_Enabled_Config : Boolean; - -- GNAT - -- This is the value of the configuration switch for assertions enabled - -- mode, as possibly set by the command line switch -gnata, and possibly - -- modified by the use of the configuration pragma Assertion_Policy. - - Debug_Pragmas_Enabled_Config : Boolean; - -- GNAT - -- This is the value of the configuration switch for debug pragmas enabled - -- mode, as possibly set by the command line switch -gnata and possibly - -- modified by the use of the configuration pragma Debug_Policy. - - Dynamic_Elaboration_Checks_Config : Boolean := False; - -- GNAT - -- Set True for dynamic elaboration checking mode, as set by the -gnatE - -- switch or by the use of pragma Elaboration_Checking (Dynamic). - - Exception_Locations_Suppressed_Config : Boolean := False; - -- GNAT - -- Set True by use of the configuration pragma Suppress_Exception_Messages - - Extensions_Allowed_Config : Boolean; - -- GNAT - -- This is the flag that indicates whether extensions are allowed. It can - -- be set True either by use of the -gnatX switch, or by use of the - -- configuration pragma Extensions_Allowed (On). It is always set to True - -- for internal GNAT units, since extensions are always permitted in such - -- units. - - External_Name_Exp_Casing_Config : External_Casing_Type; - -- GNAT - -- This is the value of the configuration switch that controls casing of - -- external symbols for which an explicit external name is given. It can be - -- set to Uppercase by the command line switch -gnatF, and further modified - -- by the use of the configuration pragma External_Name_Casing in the - -- gnat.adc file. This flag is used to set the initial value for - -- External_Name_Exp_Casing at the start of analyzing each unit. Note - -- however that the setting of this flag is ignored for internal and - -- predefined units (which are always compiled with As_Is mode). - - External_Name_Imp_Casing_Config : External_Casing_Type; - -- GNAT - -- This is the value of the configuration switch that controls casing of - -- external symbols where the external name is implicitly given. It can be - -- set to Uppercase by the command line switch -gnatF, and further modified - -- by the use of the configuration pragma External_Name_Casing in the - -- gnat.adc file. This flag is used to set the initial value for - -- External_Name_Imp_Casing at the start of analyzing each unit. Note - -- however that the setting of this flag is ignored for internal and - -- predefined units (which are always compiled with Lowercase mode). - - Persistent_BSS_Mode_Config : Boolean; - -- GNAT - -- This is the value of the configuration switch that controls whether - -- potentially persistent data is to be placed in the persistent_bss - -- section. It can be set True by use of the pragma Persistent_BSS. - -- This flag is used to set the initial value of Persistent_BSS_Mode - -- at the start of each compilation unit, except that it is always - -- set False for predefined units. - - Polling_Required_Config : Boolean; - -- GNAT - -- This is the value of the configuration switch that controls polling - -- mode. It can be set True by the command line switch -gnatP, and then - -- further modified by the use of pragma Polling in the gnat.adc file. This - -- flag is used to set the initial value for Polling_Required at the start - -- of analyzing each unit. - - Use_VADS_Size_Config : Boolean; - -- GNAT - -- This is the value of the configuration switch that controls the use of - -- VADS_Size instead of Size whereever the attribute Size is used. It can - -- be set True by the use of the pragma Use_VADS_Size in the gnat.adc file. - -- This flag is used to set the initial value for Use_VADS_Size at the - -- start of analyzing each unit. Note however that the setting of this flag - -- is ignored for internal and predefined units (which are always compiled - -- with the standard Size semantics). - - type Config_Switches_Type is private; - -- Type used to save values of the switches set from Config values - - procedure Save_Opt_Config_Switches (Save : out Config_Switches_Type); - -- This procedure saves the current values of the switches which are - -- initialized from the above Config values, and then resets these switches - -- according to the Config value settings. - - procedure Set_Opt_Config_Switches - (Internal_Unit : Boolean; - Main_Unit : Boolean); - -- This procedure sets the switches to the appropriate initial values. The - -- parameter Internal_Unit is True for an internal or predefined unit, and - -- affects the way the switches are set (see above). Main_Unit is true if - -- switches are being set for the main unit (this affects setting of the - -- assert/debug pragm switches, which are normally set false by default for - -- an internal unit, except when the internal unit is the main unit, in - -- which case we use the command line settings). - - procedure Restore_Opt_Config_Switches (Save : Config_Switches_Type); - -- This procedure restores a set of switch values previously saved by a - -- call to Save_Opt_Switches. - - procedure Register_Opt_Config_Switches; - -- This procedure is called after processing the gnat.adc file to record - -- the values of the Config switches, as possibly modified by the use of - -- command line switches and configuration pragmas. - - ------------------------ - -- Other Global Flags -- - ------------------------ - - Expander_Active : Boolean := False; - -- A flag that indicates if expansion is active (True) or deactivated - -- (False). When expansion is deactivated all calls to expander routines - -- have no effect. Note that the initial setting of False is merely to - -- prevent saving of an undefined value for an initial call to the - -- Expander_Mode_Save_And_Set procedure. For more information on the use of - -- this flag, see package Expander. Indeed this flag might more logically - -- be in the spec of Expander, but it is referenced by Errout, and it - -- really seems wrong for Errout to depend on Expander. - - ----------------------- - -- Tree I/O Routines -- - ----------------------- - - procedure Tree_Read; - -- Reads switch settings from current tree file using Tree_Read - - procedure Tree_Write; - -- Writes out switch settings to current tree file using Tree_Write - - -------------------------- - -- ASIS Version Control -- - -------------------------- - - -- These two variables (Tree_Version_String and Tree_ASIS_Version_Number) - -- are supposed to be used in the GNAT/ASIS version check performed in - -- the ASIS code (this package is also a part of the ASIS implementation). - -- They are set by Tree_Read procedure, so they represent the version - -- number (and the version string) of the compiler which has created the - -- tree, and they are supposed to be compared with the corresponding values - -- from the Gnatvsn package which is a part of ASIS implementation. - - Tree_Version_String : String_Access; - -- Used to store the compiler version string read from a tree file to check - -- if it is from the same date as stored in the version string in Gnatvsn. - -- We require that ASIS Pro can be used only with GNAT Pro, but we allow - -- non-Pro ASIS and ASIS-based tools to be used with any version of the - -- GNAT compiler. Therefore, we need the possibility to compare the dates - -- of the corresponding source sets, using version strings that may be - -- of different lengths. - - Tree_ASIS_Version_Number : Int; - -- Used to store the ASIS version number read from a tree file to check if - -- it is the same as stored in the ASIS version number in Gnatvsn. - -private - - -- The following type is used to save and restore settings of switches in - -- Opt that represent the configuration (i.e. result of config pragmas). - - -- Note that Ada_Version_Explicit is not included, since this is a sticky - -- flag that once set does not get reset, since the whole idea of this flag - -- is to record the setting for the main unit. - - type Config_Switches_Type is record - Ada_Version : Ada_Version_Type; - Ada_Version_Explicit : Ada_Version_Type; - Assertions_Enabled : Boolean; - Debug_Pragmas_Enabled : Boolean; - Dynamic_Elaboration_Checks : Boolean; - Exception_Locations_Suppressed : Boolean; - Extensions_Allowed : Boolean; - External_Name_Exp_Casing : External_Casing_Type; - External_Name_Imp_Casing : External_Casing_Type; - Persistent_BSS_Mode : Boolean; - Polling_Required : Boolean; - Use_VADS_Size : Boolean; - end record; - -end Opt; |