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Diffstat (limited to 'gcc-4.2.1/gcc/ada/s-pooloc.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/s-pooloc.adb | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/gcc-4.2.1/gcc/ada/s-pooloc.adb b/gcc-4.2.1/gcc/ada/s-pooloc.adb deleted file mode 100644 index dca1b413f..000000000 --- a/gcc-4.2.1/gcc/ada/s-pooloc.adb +++ /dev/null @@ -1,161 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- S Y S T E M . P O O L _ L O C A L -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2006, 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, 51 Franklin Street, Fifth Floor, -- --- Boston, MA 02110-1301, 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. -- --- -- ------------------------------------------------------------------------------- - -with System.Memory; - -with Unchecked_Conversion; - -package body System.Pool_Local is - - package SSE renames System.Storage_Elements; - use type SSE.Storage_Offset; - - Pointer_Size : constant SSE.Storage_Offset := Address'Size / Storage_Unit; - Pointers_Size : constant SSE.Storage_Offset := 2 * Pointer_Size; - - type Acc_Address is access all Address; - function To_Acc_Address is new Unchecked_Conversion (Address, Acc_Address); - - ----------------------- - -- Local Subprograms -- - ----------------------- - - function Next (A : Address) return Acc_Address; - pragma Inline (Next); - -- Given an address of a block, return an access to the next block - - function Prev (A : Address) return Acc_Address; - pragma Inline (Prev); - -- Given an address of a block, return an access to the previous block - - -------------- - -- Allocate -- - -------------- - - procedure Allocate - (Pool : in out Unbounded_Reclaim_Pool; - Address : out System.Address; - Storage_Size : SSE.Storage_Count; - Alignment : SSE.Storage_Count) - is - pragma Warnings (Off, Alignment); - - Allocated : constant System.Address := - Memory.Alloc - (Memory.size_t (Storage_Size + Pointers_Size)); - - begin - -- The call to Alloc returns an address whose alignment is compatible - -- with the worst case alignment requirement for the machine; thus the - -- Alignment argument can be safely ignored. - - if Allocated = Null_Address then - raise Storage_Error; - else - Address := Allocated + Pointers_Size; - Next (Allocated).all := Pool.First; - Prev (Allocated).all := Null_Address; - - if Pool.First /= Null_Address then - Prev (Pool.First).all := Allocated; - end if; - - Pool.First := Allocated; - end if; - end Allocate; - - ---------------- - -- Deallocate -- - ---------------- - - procedure Deallocate - (Pool : in out Unbounded_Reclaim_Pool; - Address : System.Address; - Storage_Size : SSE.Storage_Count; - Alignment : SSE.Storage_Count) - is - pragma Warnings (Off, Storage_Size); - pragma Warnings (Off, Alignment); - - Allocated : constant System.Address := Address - Pointers_Size; - - begin - if Prev (Allocated).all = Null_Address then - Pool.First := Next (Allocated).all; - Prev (Pool.First).all := Null_Address; - else - Next (Prev (Allocated).all).all := Next (Allocated).all; - end if; - - if Next (Allocated).all /= Null_Address then - Prev (Next (Allocated).all).all := Prev (Allocated).all; - end if; - - Memory.Free (Allocated); - end Deallocate; - - -------------- - -- Finalize -- - -------------- - - procedure Finalize (Pool : in out Unbounded_Reclaim_Pool) is - N : System.Address := Pool.First; - Allocated : System.Address; - - begin - while N /= Null_Address loop - Allocated := N; - N := Next (N).all; - Memory.Free (Allocated); - end loop; - end Finalize; - - ---------- - -- Next -- - ---------- - - function Next (A : Address) return Acc_Address is - begin - return To_Acc_Address (A); - end Next; - - ---------- - -- Prev -- - ---------- - - function Prev (A : Address) return Acc_Address is - begin - return To_Acc_Address (A + Pointer_Size); - end Prev; - -end System.Pool_Local; |