obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 420 insertions, 0 deletions

diff --git a/gcc/ada/s-rident.ads b/gcc/ada/s-rident.ads
new file mode 100644
index 000000000..9423694af
--- /dev/null
+++ b/gcc/ada/s-rident.ads
@@ -0,0 +1,420 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                         S Y S T E M . R I D E N T                        --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 1992-2010, 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_Allocators_After_Elaboration,         -- Ada 2012 (RM D.7(19.1/2))
+      No_Anonymous_Allocators,                 -- Ada 2012 (RM H.4(8/1))
+      No_Asynchronous_Control,                 -- (RM D.7(10))
+      No_Calendar,                             -- GNAT
+      No_Default_Stream_Attributes,            -- Ada 2012 (RM 13.12.1(4/2))
+      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 : constant 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;