1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--                    S Y S T E M . P A R A M E T E R S                     --
6--                                                                          --
7--                                 B o d y                                  --
8--                                                                          --
9--          Copyright (C) 1997-2020, Free Software Foundation, Inc.         --
10--                                                                          --
11-- GNAT is free software;  you can  redistribute it  and/or modify it under --
12-- terms of the  GNU General Public License as published  by the Free Soft- --
13-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
14-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
17--                                                                          --
18-- As a special exception under Section 7 of GPL version 3, you are granted --
19-- additional permissions described in the GCC Runtime Library Exception,   --
20-- version 3.1, as published by the Free Software Foundation.               --
21--                                                                          --
22-- You should have received a copy of the GNU General Public License and    --
23-- a copy of the GCC Runtime Library Exception along with this program;     --
24-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
25-- <http://www.gnu.org/licenses/>.                                          --
26--                                                                          --
27-- GNAT was originally developed  by the GNAT team at  New York University. --
28-- Extensive contributions were provided by Ada Core Technologies Inc.      --
29--                                                                          --
30------------------------------------------------------------------------------
31
32--  This is the RTEMS specific version
33
34with Interfaces.C;
35
36package body System.Parameters is
37
38   function ada_pthread_minimum_stack_size return Interfaces.C.size_t;
39   pragma Import (C, ada_pthread_minimum_stack_size,
40     "_ada_pthread_minimum_stack_size");
41
42   -------------------------
43   -- Adjust_Storage_Size --
44   -------------------------
45
46   function Adjust_Storage_Size (Size : Size_Type) return Size_Type is
47   begin
48      if Size = Unspecified_Size then
49         return Default_Stack_Size;
50
51      elsif Size < Minimum_Stack_Size then
52         return Minimum_Stack_Size;
53
54      else
55         return Size;
56      end if;
57   end Adjust_Storage_Size;
58
59   ------------------------
60   -- Default_Stack_Size --
61   ------------------------
62
63   function Default_Stack_Size return Size_Type is
64   begin
65      return Size_Type (ada_pthread_minimum_stack_size);
66   end Default_Stack_Size;
67
68   ------------------------
69   -- Minimum_Stack_Size --
70   ------------------------
71
72   function Minimum_Stack_Size return Size_Type is
73
74   begin
75      return Size_Type (ada_pthread_minimum_stack_size);
76   end Minimum_Stack_Size;
77
78end System.Parameters;
79