X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=blobdiff_plain;f=gcc%2Fada%2Fopt.ads;fp=gcc%2Fada%2Fopt.ads;h=0000000000000000000000000000000000000000;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=e6c39eff289c14171c46c2551e66194768d601d0;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/gcc/ada/opt.ads b/gcc/ada/opt.ads deleted file mode 100644 index e6c39eff..00000000 --- a/gcc/ada/opt.ads +++ /dev/null @@ -1,894 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- O P T -- --- -- --- S p e c -- --- -- --- $Revision: 1.4.10.1 $ --- -- --- 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. -- --- -- ------------------------------------------------------------------------------- - --- This package contains global switches set by the initialization --- routine from the command line and referenced throughout the compiler, --- the binder or gnatmake. The comments indicate which options are used by --- which programs (GNAT, GNATBIND, GNATMAKE). - -with Hostparm; use Hostparm; -with Types; use Types; -with System.WCh_Con; use System.WCh_Con; - -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 - -- Set True if binder file to be generated in Ada rather than C - - Ada_95 : Boolean := True; - -- GNAT - -- Set True if operating in Ada 95 mode - -- Set False if operating in Ada 83 mode - - Ada_83 : Boolean := False; - -- GNAT - -- Set True if operating in Ada 83 mode - -- Set False if operating in Ada 95 mode - - Ada_Final_Suffix : constant String := "final"; - -- GNATBIND - -- The suffix of the name of the finalization procedure. This variable - -- may be modified by Gnatbind.Scan_Bind_Arg. - - 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"; - -- GNATBIND - -- The suffix of the name of the initialization procedure. This variable - -- may be modified by Gnatbind.Scan_Bind_Arg. - - 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 - - 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; - -- 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. - - Back_Annotate_Rep_Info : Boolean := False; - -- GNAT - -- If set True (by use of -gnatB), enables back annotation of - -- representation information by gigi, even in -gnatc mode. - - Bind_Alternate_Main_Name : Boolean := False; - -- GNATBIND - -- Set to 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 - -- Set to True to skip compile and link steps - -- (except when Compile_Only and/or Link_Only are True). - - 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). - - Check_Object_Consistency : Boolean := False; - -- GNATBIND, GNATMAKE - -- Set to True to check whether every object file is consistent with - -- 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 do not need to check source - -- consistencies in gnatmake in this sense. - - 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 - -- 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 - -- Set to True to check compiler options during the make process. - - Check_Unreferenced : Boolean := False; - -- GNAT - -- Set to True to enable checking for unreferenced variables - - 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. - - Compile_Only : Boolean := False; - -- GNATMAKE - -- Set to True to skip bind and link steps (except when Bind_Only is True) - - Compress_Debug_Names : Boolean := False; - -- GNATMAKE - -- Set to True if the option to compress debug information is set (-gnatC) - - Config_File : Boolean := True; - -- GNAT - -- Set to False to inhibit reading and processing of gnat.adc file - - Config_File_Name : String_Ptr := null; - -- GNAT - -- File name of configuration pragmas file (given by switch -gnatec) - - Constant_Condition_Warnings : Boolean := False; - -- GNAT - -- Set to True to activate warnings on constant conditions - - 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 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. - - Display_Compilation_Progress : Boolean := False; - -- GNATMAKE - -- Set True (-d switch) to display information on progress while compiling - -- files. Internal switch to be used in conjunction with an IDE such as - -- Glide. - - 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). - - 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) - - type Exception_Mechanism_Type is (Setjmp_Longjmp, Front_End_ZCX, GCC_ZCX); - Exception_Mechanism : Exception_Mechanism_Type := Setjmp_Longjmp; - -- GNAT - -- Set to the appropriate value depending on the default as given in - -- system.ads (ZCX_By_Default, GCC_ZCX_Support, Front_End_ZCX_Support) - -- and the use of -gnatL -gnatZ (and -gnatdX) - - Exception_Tracebacks : Boolean := False; - -- GNATBIND - -- Set to True to store tracebacks in exception occurrences (-E) - - Extensions_Allowed : Boolean := False; - -- GNAT - - 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; - -- The setting of this switch 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; - -- The setting of this switch 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). - - 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_Compilations : Boolean := False; - -- GNATMAKE - -- Set to force recompilations even when the objects are up-to-date. - - Force_RM_Elaboration_Order : Boolean := False; - -- GNATBIND - -- True if binding with forced RM elaboration order (-f switch set) - -- Note: this is considered an obsolescent option, to be removed in - -- some future release. it is no longer documented. The proper way - -- to get this effect is to use -gnatE and suppress elab checks. - - Full_List : Boolean := False; - -- GNAT - -- Set True to generate full source listing with embedded errors - - Global_Discard_Names : Boolean := False; - -- GNAT - -- Set true if a pragma Discard_Names applies to the current unit - - GNAT_Mode : Boolean := False; - -- GNAT - -- True if compiling in GNAT system mode (-g switch set) - - HLO_Active : Boolean := False; - -- GNAT - -- True if High Level Optimizer is activated - - 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-1 - -- '2' Latin-2 - -- '3' Latin-3 - -- '4' Latin-4 - -- '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 - -- 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_Mode : Character := 'I'; - -- GNATBIND - -- Set to 'I' for -Sin (default), 'L' for -Slo, 'H' for -Shi, 'X' for -Sxx - - Initialize_Scalars_Val : String (1 .. 2); - -- GNATBIND - -- Valid only if Initialize_Scalars_Mode is set to 'X' (-Shh). Contains - -- the two hex bytes from the -Shh switch. - - Inline_Active : Boolean := False; - -- GNAT - -- Set True to activate pragma Inline processing across modules. Default - -- for now is not to inline across module boundaries. - - 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 - -- When True signals gnatmake to ignore compilation errors and keep - -- processing sources until there is no more work. - - Link_Only : Boolean := False; - -- GNATMAKE - -- Set to True to skip compile and bind steps - -- (except when Bind_Only is set to True). - - List_Units : Boolean := False; - -- GNAT - -- List units in the active library - - List_Dependencies : Boolean := False; - -- GNATMAKE - -- When True gnatmake verifies that the objects are up to date and - -- outputs the list of object dependencies. This list can be used - -- directly in a Makefile. - - List_Representation_Info : Int range 0 .. 3 := 0; - -- GNAT - -- Set true 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 - - Locking_Policy : Character := ' '; - -- GNAT - -- 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. - - Look_In_Primary_Dir : Boolean := True; - -- GNAT, GNATBIND, GNATMAKE - -- 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. - - 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 number of errors before compilation is terminated - - 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 - -- 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. - - No_Stdlib : Boolean := False; - -- GNATMAKE - -- Set to True if no default library search dirs added to search list. - - No_Stdinc : Boolean := False; - -- GNATMAKE - -- Set to True if no default source search dirs added to search list. - - No_Main_Subprogram : Boolean := False; - -- GNATMAKE, GNATBIND - -- Set to True if compilation/binding of a program without main - -- subprogram requested. - - Normalize_Scalars : Boolean := False; - -- GNAT - -- 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. - - No_Run_Time : Boolean := False; - -- GNAT - -- Set True if a valid pragma No_Run_Time is processed or if the - -- flag Targparm.High_Integrity_Mode_On_Target is set True. - - 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 error is - -- detected then this flag is reset from Generate_Code to Check_Semantics - -- after generating an error message. - - Output_File_Name_Present : Boolean := False; - -- GNATBIND, GNAT - -- Set to True when the output C file name is given with option -o - -- for GNATBIND or when the object file name is given with option - -- -gnatO for GNAT. - - 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) - - 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. - - 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. - - 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. - - Queuing_Policy : Character := ' '; - -- GNAT - -- Set to ' ' for the default case (no queuing policy specified). Reset to - -- Reset to first character (uppercase) of locking policy name if a valid - -- Queuing_Policy pragma is encountered. - - Quiet_Output : Boolean := False; - -- GNATMAKE - -- Set to True if the list of compilation commands should not be output. - - 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 switch is set by Gnatbind.Scan_Bind_Arg. - - Software_Overflow_Checking : Boolean; - -- GNAT - -- Set to True by Osint.Initialize if the target requires the software - -- approach to integer arithmetic overflow checking (i.e. the use of - -- double length arithmetic followed by a range check). Set to False - -- if the target implements hardware overflow checking. - - 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. - - Strict_Math : aliased Boolean := False; - -- GNAT - -- This switch is set True if the current unit is to be compiled in - -- strict math mode. The effect is to cause certain library file name - -- substitutions to implement strict math semantics. See the routine - -- Adjust_File_Name_For_Configuration, and also the configuration - -- in the body of Opt. - -- - -- Note: currently this switch is always False. Eventually it will be - -- settable by a switch and a configuration pragma. - - 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)). - - Subunits_Missing : Boolean := False; - -- This flag is set true if missing subunits are detected with code - -- generation active. This causes code generation to be skipped. - - Suppress_Options : Suppress_Record; - -- 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. - - Table_Factor : Int := 1; - -- 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 - -- 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. - - 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; - -- Set True if a pragma Time_Slice is processed in the main unit, or - -- if the T switch is present to set a time slice value. - - Time_Slice_Value : Nat; - -- Time slice value. Valid only if Time_Slice_Set is True, i.e. if a - -- 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. - - Tolerate_Consistency_Errors : Boolean := False; - -- GNATBIND - -- Tolerate time stamp and other consistency errors. If this switch is - -- set true, then inconsistencies result in warnings rather than errors. - - Tree_Output : Boolean := False; - -- GNAT - -- Set True 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. - - 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. - - 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 switch encountered requesting usage information - - Use_VADS_Size : Boolean := False; - -- GNAT - -- Set to True if a valid pragma Use_VADS_Size is processed - - Validity_Checks_On : Boolean := True; - -- 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 Sem_Val. The Validity_Checks_On - -- switch 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 switch set to False. - - Verbose_Mode : Boolean := False; - -- GNAT, GNATBIND - -- Set to True to get verbose mode (full error message text and location - -- information sent to standard output, also header, copyright and summary) - - Warn_On_Biased_Rounding : Boolean := False; - -- GNAT - -- Set to True to generate warnings for static constants that are rounded - -- in a manner inconsistent with unbiased rounding (round to even). Can - -- be modified by use of -gnatwb/B. - - 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_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. - - 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) - - Zero_Cost_Exceptions_Val : Boolean; - Zero_Cost_Exceptions_Set : Boolean := False; - -- GNAT - -- These values are to record the setting of the zero cost exception - -- handling mode set by argument switches (-gnatZ/-gnatL). If the - -- value is set by one of these switches, then Zero_Cost_Exceptions_Set - -- is set to True, and Zero_Cost_Exceptions_Val indicates the setting. - -- This value is used to reset ZCX_By_Default_On_Target. - - ---------------------------- - -- 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_83_Config : Boolean; - -- GNAT - -- This is the value of the configuration switch for Ada 83 mode, as set - -- by the command line switch -gnat83, and possibly modified by the use - -- of configuration pragmas Ada_95 and Ada_83 in the gnat.adc file. This - -- switch is used to set the initial value for Ada_83 mode at the start - -- of analysis of a unit. Note however, that the setting of this switch - -- is ignored for internal and predefined units (which are always compiled - -- in Ada 95 mode). - - 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). - - Extensions_Allowed_Config : Boolean; - -- GNAT - -- This is the switch 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 switch 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 switch 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 switch 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 switch is ignored for internal - -- and predefined units (which are always compiled with Lowercase mode). - - 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 switch 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 switch 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 switch 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); - -- 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). - - 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 - -private - - type Config_Switches_Type is record - Ada_83 : Boolean; - Dynamic_Elaboration_Checks : Boolean; - Extensions_Allowed : Boolean; - External_Name_Exp_Casing : External_Casing_Type; - External_Name_Imp_Casing : External_Casing_Type; - Polling_Required : Boolean; - Use_VADS_Size : Boolean; - end record; - -end Opt;