summaryrefslogtreecommitdiffstats
path: root/gcc/ada/rident.ads
blob: bdff01ae6796901db364eda808b74a207f3c0a03 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
------------------------------------------------------------------------------
--                                                                          --
--                         GNAT COMPILER COMPONENTS                         --
--                                                                          --
--                               R I D E N T                                --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--                            $Revision$
--                                                                          --
--          Copyright (C) 1992-2002 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.                                                      --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
--                                                                          --
------------------------------------------------------------------------------

--  This package defines the set of restriction identifiers. It is in a
--  separate package from Restrict so that it can be easily used by the
--  binder without dragging in a lot of stuff.

package Rident is

   --  The following enumeration type defines the set of restriction
   --  identifiers not taking a parameter 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 appropriate calls to the
   --  Restrict.Check_Restriction routine.

   type Restriction_Id is (

      --  The following cases are checked for consistency in the binder

      Boolean_Entry_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_Dispatch,                             -- (RM H.4(19))
      No_Dynamic_Interrupts,                   -- GNAT
      No_Dynamic_Priorities,                   -- (RM D.9(9))
      No_Enumeration_Maps,                     -- GNAT
      No_Entry_Calls_In_Elaboration_Code,      -- GNAT
      No_Entry_Queue,                          -- GNAT
      No_Exception_Handlers,                   -- GNAT
      No_Exceptions,                           -- (RM H.4(12))
      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_Local_Allocators,                     -- (RM H.4(8))
      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
      No_Requeue,                              -- GNAT
      No_Secondary_Stack,                      -- GNAT
      No_Select_Statements,                    -- GNAT (Ravenscar)
      No_Standard_Storage_Pools,               -- GNAT
      No_Streams,                              -- GNAT
      No_Task_Allocators,                      -- (RM D.7(7))
      No_Task_Attributes,                      -- GNAT
      No_Task_Hierarchy,                       -- (RM D.7(3), H.4(3))
      No_Task_Termination,                     -- GNAT
      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))
      No_Wide_Characters,                      -- GNAT
      Static_Priorities,                       -- GNAT
      Static_Storage_Size,                     -- GNAT

      --  The following cases do not require partition-wide checks

      Immediate_Reclamation,                   -- (RM H.4(10))
      No_Implementation_Attributes,            -- GNAT
      No_Implementation_Pragmas,               -- GNAT
      No_Implementation_Restrictions,          -- GNAT
      No_Elaboration_Code,                     -- GNAT

      Not_A_Restriction_Id);

   subtype All_Restrictions is
     Restriction_Id range Boolean_Entry_Barriers .. No_Elaboration_Code;
   --  All restrictions except Not_A_Restriction_Id

   --  The following range of Restriction identifiers is checked for
   --  consistency across a partition. The generated ali file is marked
   --  for each entry to show one of three possibilities:
   --
   --    Corresponding restriction is set (so unit does not violate it)
   --    Corresponding restriction is not violated
   --    Corresponding restriction is violated

   subtype Partition_Restrictions is
     Restriction_Id range Boolean_Entry_Barriers .. Static_Storage_Size;

   --  The following set of Restriction identifiers is not checked for
   --  consistency across a partition. The generated ali file still
   --  contains indications of the above three possibilities for the
   --  purposes of listing applicable restrictions.

   subtype Compilation_Unit_Restrictions is
     Restriction_Id range Immediate_Reclamation .. No_Elaboration_Code;

   --  The following enumeration type defines the set of restriction
   --  parameter identifiers taking a parameter that are implemented in
   --  GNAT. To add a new restriction parameter identifier, add an entry
   --  with the name to be used in the pragma, and add appropriate
   --  calls to Restrict.Check_Restriction.

   --  Note: the GNAT implementation currently only accomodates restriction
   --  parameter identifiers whose expression value is a non-negative
   --  integer. This is true for all language defined parameters.

   type Restriction_Parameter_Id is (
     Max_Asynchronous_Select_Nesting,         -- (RM D.7(18), H.4(3))
     Max_Entry_Queue_Depth,                   -- GNAT
     Max_Protected_Entries,                   -- (RM D.7(14))
     Max_Select_Alternatives,                 -- (RM D.7(12))
     Max_Storage_At_Blocking,                 -- (RM D.7(17))
     Max_Task_Entries,                        -- (RM D.7(13), H.4(3))
     Max_Tasks,                               -- (RM D.7(19), H.4(3))
     Not_A_Restriction_Parameter_Id);

end Rident;
OpenPOWER on IntegriCloud