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Diffstat (limited to 'gcc/ada/s-parame-os2.adb')
| -rw-r--r-- | gcc/ada/s-parame-os2.adb | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/gcc/ada/s-parame-os2.adb b/gcc/ada/s-parame-os2.adb new file mode 100644 index 00000000000..1ae7463618b --- /dev/null +++ b/gcc/ada/s-parame-os2.adb @@ -0,0 +1,83 @@ +------------------------------------------------------------------------------ +-- -- +-- 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) 1997-2002 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. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This is the OS/2 specific version - default stacksizes need to be large + +package body System.Parameters is + + ------------------------ + -- Default_Stack_Size -- + ------------------------ + + function Default_Stack_Size return Size_Type is + begin + -- The default stack size for extra tasks is based on the + -- default stack size for the main task (8 MB) and for the heap + -- (32 MB). + + -- In OS/2 it doesn't hurt to define large stacks, unless + -- the system is configured to commit all memory reservations. + -- This is not a default configuration however. + + return 1024 * 1024; + end Default_Stack_Size; + + ------------------------ + -- Minimum_Stack_Size -- + ------------------------ + + function Minimum_Stack_Size return Size_Type is + begin + -- System functions may need 8 kB of stack, so 12 kB seems a + -- good minimum. + return 12 * 1024; + end Minimum_Stack_Size; + + ------------------------- + -- 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; + +end System.Parameters; |