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diff --git a/gcc-4.4.0/gcc/ada/s-rident.ads b/gcc-4.4.0/gcc/ada/s-rident.ads deleted file mode 100644 index 110731f34..000000000 --- a/gcc-4.4.0/gcc/ada/s-rident.ads +++ /dev/null @@ -1,417 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- S Y S T E M . R I D E N T -- --- -- --- S p e c -- --- -- --- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- --- -- --- GNAT is free software; you can redistribute it and/or modify it under -- --- terms of the GNU General Public License as published by the Free Soft- -- --- ware Foundation; either version 3, or (at your option) any later ver- -- --- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- --- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- --- or FITNESS FOR A PARTICULAR PURPOSE. -- --- -- --- As a special exception under Section 7 of GPL version 3, you are granted -- --- additional permissions described in the GCC Runtime Library Exception, -- --- version 3.1, as published by the Free Software Foundation. -- --- -- --- You should have received a copy of the GNU General Public License and -- --- a copy of the GCC Runtime Library Exception along with this program; -- --- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- --- <http://www.gnu.org/licenses/>. -- --- -- --- GNAT was originally developed by the GNAT team at New York University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - --- This package defines the set of restriction identifiers. It is a generic --- package that is instantiated by the compiler/binder in package Rident, and --- is instantiated in package System.Restrictions for use at run-time. - --- The reason that we make this a generic package is so that in the case of --- the instantiation in Rident for use at compile time and bind time, we can --- generate normal image tables for the enumeration types, which are needed --- for diagnostic and informational messages. At run-time we really do not --- want to waste the space for these image tables, and they are not needed, --- so we can do the instantiation under control of Discard_Names to remove --- the tables. - -generic -package System.Rident is - pragma Preelaborate; - - -- The following enumeration type defines the set of restriction - -- identifiers that are implemented in GNAT. - - -- To add a new restriction identifier, add an entry with the name to be - -- used in the pragma, and add calls to the Restrict.Check_Restriction - -- routine as appropriate. - - type Restriction_Id is - - -- The following cases are checked for consistency in the binder. The - -- binder will check that every unit either has the restriction set, or - -- does not violate the restriction. - - (Simple_Barriers, -- GNAT (Ravenscar) - No_Abort_Statements, -- (RM D.7(5), H.4(3)) - No_Access_Subprograms, -- (RM H.4(17)) - No_Allocators, -- (RM H.4(7)) - No_Asynchronous_Control, -- (RM D.7(10)) - No_Calendar, -- GNAT - No_Delay, -- (RM H.4(21)) - No_Direct_Boolean_Operators, -- GNAT - No_Dispatch, -- (RM H.4(19)) - No_Dispatching_Calls, -- GNAT - No_Dynamic_Attachment, -- GNAT - No_Dynamic_Priorities, -- (RM D.9(9)) - No_Enumeration_Maps, -- GNAT - No_Entry_Calls_In_Elaboration_Code, -- GNAT - No_Entry_Queue, -- GNAT (Ravenscar) - No_Exception_Handlers, -- GNAT - No_Exception_Propagation, -- GNAT - No_Exception_Registration, -- GNAT - No_Exceptions, -- (RM H.4(12)) - No_Finalization, -- GNAT - No_Fixed_Point, -- (RM H.4(15)) - No_Floating_Point, -- (RM H.4(14)) - No_IO, -- (RM H.4(20)) - No_Implicit_Conditionals, -- GNAT - No_Implicit_Dynamic_Code, -- GNAT - No_Implicit_Heap_Allocations, -- (RM D.8(8), H.4(3)) - No_Implicit_Loops, -- GNAT - No_Initialize_Scalars, -- GNAT - No_Local_Allocators, -- (RM H.4(8)) - No_Local_Timing_Events, -- (RM D.7(10.2/2)) - No_Local_Protected_Objects, -- GNAT - No_Nested_Finalization, -- (RM D.7(4)) - No_Protected_Type_Allocators, -- GNAT - No_Protected_Types, -- (RM H.4(5)) - No_Recursion, -- (RM H.4(22)) - No_Reentrancy, -- (RM H.4(23)) - No_Relative_Delay, -- GNAT (Ravenscar) - No_Requeue_Statements, -- GNAT - No_Secondary_Stack, -- GNAT - No_Select_Statements, -- GNAT (Ravenscar) - No_Specific_Termination_Handlers, -- (RM D.7(10.7/2)) - No_Standard_Storage_Pools, -- GNAT - No_Stream_Optimizations, -- GNAT - No_Streams, -- GNAT - No_Task_Allocators, -- (RM D.7(7)) - No_Task_Attributes_Package, -- GNAT - No_Task_Hierarchy, -- (RM D.7(3), H.4(3)) - No_Task_Termination, -- GNAT (Ravenscar) - No_Tasking, -- GNAT - No_Terminate_Alternatives, -- (RM D.7(6)) - No_Unchecked_Access, -- (RM H.4(18)) - No_Unchecked_Conversion, -- (RM H.4(16)) - No_Unchecked_Deallocation, -- (RM H.4(9)) - Static_Priorities, -- GNAT - Static_Storage_Size, -- GNAT - - -- The following require consistency checking with special rules. See - -- individual routines in unit Bcheck for details of what is required. - - No_Default_Initialization, -- GNAT - - -- The following cases do not require consistency checking - - Immediate_Reclamation, -- (RM H.4(10)) - No_Implementation_Attributes, -- Ada 2005 AI-257 - No_Implementation_Pragmas, -- Ada 2005 AI-257 - No_Implementation_Restrictions, -- GNAT - No_Elaboration_Code, -- GNAT - No_Obsolescent_Features, -- Ada 2005 AI-368 - No_Wide_Characters, -- GNAT - - -- The following cases require a parameter value - - -- The following entries are fully checked at compile/bind time, which - -- means that the compiler can in general tell the minimum value which - -- could be used with a restrictions pragma. The binder can deduce the - -- appropriate minimum value for the partition by taking the maximum - -- value required by any unit. - - Max_Protected_Entries, -- (RM D.7(14)) - Max_Select_Alternatives, -- (RM D.7(12)) - Max_Task_Entries, -- (RM D.7(13), H.4(3)) - - -- The following entries are also fully checked at compile/bind time, - -- and the compiler can also at least in some cases tell the minimum - -- value which could be used with a restriction pragma. The difference - -- is that the contributions are additive, so the binder deduces this - -- value by adding the unit contributions. - - Max_Tasks, -- (RM D.7(19), H.4(3)) - - -- The following entries are checked at compile time only for zero/ - -- nonzero entries. This means that the compiler can tell at compile - -- time if a restriction value of zero is (would be) violated, but that - -- the compiler cannot distinguish between different non-zero values. - - Max_Asynchronous_Select_Nesting, -- (RM D.7(18), H.4(3)) - Max_Entry_Queue_Length, -- GNAT - - -- The remaining entries are not checked at compile/bind time - - Max_Storage_At_Blocking, -- (RM D.7(17)) - - Not_A_Restriction_Id); - - -- Synonyms permitted for historical purposes of compatibility. - -- Must be coordinated with Restrict.Process_Restriction_Synonym. - - Boolean_Entry_Barriers : Restriction_Id renames Simple_Barriers; - Max_Entry_Queue_Depth : Restriction_Id renames Max_Entry_Queue_Length; - No_Dynamic_Interrupts : Restriction_Id renames No_Dynamic_Attachment; - No_Requeue : Restriction_Id renames No_Requeue_Statements; - No_Task_Attributes : Restriction_Id renames No_Task_Attributes_Package; - - subtype All_Restrictions is Restriction_Id range - Simple_Barriers .. Max_Storage_At_Blocking; - -- All restrictions (excluding only Not_A_Restriction_Id) - - subtype All_Boolean_Restrictions is Restriction_Id range - Simple_Barriers .. No_Wide_Characters; - -- All restrictions which do not take a parameter - - subtype Partition_Boolean_Restrictions is All_Boolean_Restrictions range - Simple_Barriers .. Static_Storage_Size; - -- Boolean restrictions that are checked for partition consistency. - -- Note that all parameter restrictions are checked for partition - -- consistency by default, so this distinction is only needed in the - -- case of Boolean restrictions. - - subtype Cunit_Boolean_Restrictions is All_Boolean_Restrictions range - Immediate_Reclamation .. No_Wide_Characters; - -- Boolean restrictions that are not checked for partition consistency - -- and that thus apply only to the current unit. Note that for these - -- restrictions, the compiler does not apply restrictions found in - -- with'ed units, parent specs etc. to the main unit. - - subtype All_Parameter_Restrictions is - Restriction_Id range - Max_Protected_Entries .. Max_Storage_At_Blocking; - -- All restrictions that take a parameter - - subtype Checked_Parameter_Restrictions is - All_Parameter_Restrictions range - Max_Protected_Entries .. Max_Entry_Queue_Length; - -- These are the parameter restrictions that can be at least partially - -- checked at compile/binder time. Minimally, the compiler can detect - -- violations of a restriction pragma with a value of zero reliably. - - subtype Checked_Max_Parameter_Restrictions is - Checked_Parameter_Restrictions range - Max_Protected_Entries .. Max_Task_Entries; - -- Restrictions with parameters that can be checked in some cases by - -- maximizing among statically detected instances where the compiler - -- can determine the count. - - subtype Checked_Add_Parameter_Restrictions is - Checked_Parameter_Restrictions range - Max_Tasks .. Max_Tasks; - -- Restrictions with parameters that can be checked in some cases by - -- summing the statically detected instances where the compiler can - -- determine the count. - - subtype Checked_Val_Parameter_Restrictions is - Checked_Parameter_Restrictions range - Max_Protected_Entries .. Max_Tasks; - -- Restrictions with parameter where the count is known at least in some - -- cases by the compiler/binder. - - subtype Checked_Zero_Parameter_Restrictions is - Checked_Parameter_Restrictions range - Max_Asynchronous_Select_Nesting .. Max_Entry_Queue_Length; - -- Restrictions with parameters where the compiler can detect the use of - -- the feature, and hence violations of a restriction specifying a value - -- of zero, but cannot detect specific values other than zero/nonzero. - - subtype Unchecked_Parameter_Restrictions is - All_Parameter_Restrictions range - Max_Storage_At_Blocking .. Max_Storage_At_Blocking; - -- Restrictions with parameters where the compiler cannot ever detect - -- corresponding compile time usage, so the binder and compiler never - -- detect violations of any restriction. - - ------------------------------------- - -- Restriction Status Declarations -- - ------------------------------------- - - -- The following declarations are used to record the current status or - -- restrictions (for the current unit, or related units, at compile time, - -- and for all units in a partition at bind time or run time). - - type Restriction_Flags is array (All_Restrictions) of Boolean; - type Restriction_Values is array (All_Parameter_Restrictions) of Natural; - type Parameter_Flags is array (All_Parameter_Restrictions) of Boolean; - - type Restrictions_Info is record - Set : Restriction_Flags; - -- An entry is True in the Set array if a restrictions pragma has been - -- encountered for the given restriction. If the value is True for a - -- parameter restriction, then the corresponding entry in the Value - -- array gives the minimum value encountered for any such restriction. - - Value : Restriction_Values; - -- If the entry for a parameter restriction in Set is True (i.e. a - -- restrictions pragma for the restriction has been encountered), then - -- the corresponding entry in the Value array is the minimum value - -- specified by any such restrictions pragma. Note that a restrictions - -- pragma specifying a value greater than Int'Last is simply ignored. - - Violated : Restriction_Flags; - -- An entry is True in the violations array if the compiler has detected - -- a violation of the restriction. For a parameter restriction, the - -- Count and Unknown arrays have additional information. - - Count : Restriction_Values; - -- If an entry for a parameter restriction is True in Violated, the - -- corresponding entry in the Count array may record additional - -- information. If the actual minimum count is known (by taking - -- maximums, or sums, depending on the restriction), it will be - -- recorded in this array. If not, then the value will remain zero. - -- The value is also zero for a non-violated restriction. - - Unknown : Parameter_Flags; - -- If an entry for a parameter restriction is True in Violated, the - -- corresponding entry in the Unknown array may record additional - -- information. If the actual count is not known by the compiler (but - -- is known to be non-zero), then the entry in Unknown will be True. - -- This indicates that the value in Count is not known to be exact, - -- and the actual violation count may be higher. - - -- Note: If Violated (K) is True, then either Count (K) > 0 or - -- Unknown (K) = True. It is possible for both these to be set. - -- For example, if Count (K) = 3 and Unknown (K) is True, it means - -- that the actual violation count is at least 3 but might be higher. - end record; - - No_Restrictions : constant Restrictions_Info := - (Set => (others => False), - Value => (others => 0), - Violated => (others => False), - Count => (others => 0), - Unknown => (others => False)); - -- Used to initialize Restrictions_Info variables - - ---------------------------------- - -- Profile Definitions and Data -- - ---------------------------------- - - type Profile_Name is (No_Profile, Ravenscar, Restricted); - -- Names of recognized profiles. No_Profile is used to indicate that a - -- restriction came from pragma Restrictions[_Warning], as opposed to - -- pragma Profile[_Warning]. - - subtype Profile_Name_Actual is Profile_Name range Ravenscar .. Restricted; - -- Actual used profile names - - type Profile_Data is record - Set : Restriction_Flags; - -- Set to True if given restriction must be set for the profile, and - -- False if it need not be set (False does not mean that it must not be - -- set, just that it need not be set). If the flag is True for a - -- parameter restriction, then the Value array gives the maximum value - -- permitted by the profile. - - Value : Restriction_Values; - -- An entry in this array is meaningful only if the corresponding flag - -- in Set is True. In that case, the value in this array is the maximum - -- value of the parameter permitted by the profile. - end record; - - Profile_Info : array (Profile_Name_Actual) of Profile_Data := - - -- Restricted Profile - - (Restricted => - - -- Restrictions for Restricted profile - - (Set => - (No_Abort_Statements => True, - No_Asynchronous_Control => True, - No_Dynamic_Attachment => True, - No_Dynamic_Priorities => True, - No_Entry_Queue => True, - No_Local_Protected_Objects => True, - No_Protected_Type_Allocators => True, - No_Requeue_Statements => True, - No_Task_Allocators => True, - No_Task_Attributes_Package => True, - No_Task_Hierarchy => True, - No_Terminate_Alternatives => True, - Max_Asynchronous_Select_Nesting => True, - Max_Protected_Entries => True, - Max_Select_Alternatives => True, - Max_Task_Entries => True, - others => False), - - -- Value settings for Restricted profile - - Value => - (Max_Asynchronous_Select_Nesting => 0, - Max_Protected_Entries => 1, - Max_Select_Alternatives => 0, - Max_Task_Entries => 0, - others => 0)), - - -- Ravenscar Profile - - -- Note: the table entries here only represent the - -- required restriction profile for Ravenscar. The - -- full Ravenscar profile also requires: - - -- pragma Dispatching_Policy (FIFO_Within_Priorities); - -- pragma Locking_Policy (Ceiling_Locking); - -- pragma Detect_Blocking - - Ravenscar => - - -- Restrictions for Ravenscar = Restricted profile .. - - (Set => - (No_Abort_Statements => True, - No_Asynchronous_Control => True, - No_Dynamic_Attachment => True, - No_Dynamic_Priorities => True, - No_Entry_Queue => True, - No_Local_Protected_Objects => True, - No_Protected_Type_Allocators => True, - No_Requeue_Statements => True, - No_Task_Allocators => True, - No_Task_Attributes_Package => True, - No_Task_Hierarchy => True, - No_Terminate_Alternatives => True, - Max_Asynchronous_Select_Nesting => True, - Max_Protected_Entries => True, - Max_Select_Alternatives => True, - Max_Task_Entries => True, - - -- plus these additional restrictions: - - No_Calendar => True, - No_Implicit_Heap_Allocations => True, - No_Relative_Delay => True, - No_Select_Statements => True, - No_Task_Termination => True, - Simple_Barriers => True, - others => False), - - -- Value settings for Ravenscar (same as Restricted) - - Value => - (Max_Asynchronous_Select_Nesting => 0, - Max_Protected_Entries => 1, - Max_Select_Alternatives => 0, - Max_Task_Entries => 0, - others => 0))); - -end System.Rident; |