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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S Y S T E M . P A R A M E T E R S --
-- --
-- B o d y --
-- --
-- Copyright (C) 1997-2022, 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 is the RTEMS specific version
with Interfaces.C;
package body System.Parameters is
-------------------------
-- Adjust_Storage_Size --
-------------------------
function Adjust_Storage_Size (Size : Size_Type) return Size_Type is
begin
if Size = Unspecified_Size then
return Default_Stack_Size;
elsif Size < Minimum_Stack_Size then
return Minimum_Stack_Size;
else
return Size;
end if;
end Adjust_Storage_Size;
------------------------
-- Default_Stack_Size --
------------------------
function Default_Stack_Size return Size_Type is
Default_Stack_Size : constant Integer
with Import, Convention => C,
External_Name => "__gl_default_stack_size";
begin
if Default_Stack_Size = -1 then
return 32 * 1024;
else
return Size_Type (Default_Stack_Size);
end if;
end Default_Stack_Size;
------------------------
-- Minimum_Stack_Size --
------------------------
function Minimum_Stack_Size return Size_Type is
POSIX_Threads_Minimum_stack_size : constant Interfaces.C.size_t
with Import, Convention => C,
External_Name => "_POSIX_Threads_Minimum_stack_size";
begin
return Size_Type (POSIX_Threads_Minimum_stack_size);
end Minimum_Stack_Size;
end System.Parameters;