1 files changed, 64 insertions, 0 deletions
diff --git a/src/ortho/mcode/memsegs_mmap.adb b/src/ortho/mcode/memsegs_mmap.adb
new file mode 100644
index 0000000..1ee8e7b
--- /dev/null
+++ b/src/ortho/mcode/memsegs_mmap.adb
@@ -0,0 +1,64 @@
+--  Memory segments.
+--  Copyright (C) 2006 Tristan Gingold
+--
+--  GHDL is free software; you can redistribute it and/or modify it under
+--  the terms of the GNU General Public License as published by the Free
+--  Software Foundation; either version 2, or (at your option) any later
+--  version.
+--
+--  GHDL is distributed in the hope that it will be useful, but WITHOUT 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
+--  along with GCC; see the file COPYING.  If not, write to the Free
+--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+--  02111-1307, USA.
+package body Memsegs_Mmap is
+   function Mmap_Malloc (Size : Natural) return Address;
+   pragma Import (C, Mmap_Malloc, "mmap_malloc");
+
+   function Mmap_Realloc (Ptr : Address; Old_Size : Natural; Size : Natural)
+                         return Address;
+   pragma Import (C, Mmap_Realloc, "mmap_realloc");
+
+   procedure Mmap_Free (Ptr : Address; Size : Natural);
+   pragma Import (C, Mmap_Free, "mmap_free");
+
+   procedure Mmap_Rx (Ptr : Address; Size : Natural);
+   pragma Import (C, Mmap_Rx, "mmap_rx");
+
+   function Create return Memseg_Type is
+   begin
+      return (Base => Null_Address, Size => 0);
+   end Create;
+
+   procedure Resize (Seg : in out Memseg_Type; Size : Natural) is
+   begin
+      if Seg.Size = 0 then
+         Seg.Base := Mmap_Malloc (Size);
+      else
+         Seg.Base := Mmap_Realloc (Seg.Base, Seg.Size, Size);
+      end if;
+      Seg.Size := Size;
+   end Resize;
+
+   function Get_Address (Seg : Memseg_Type) return Address is
+   begin
+      return Seg.Base;
+   end Get_Address;
+
+   procedure Delete (Seg : in out Memseg_Type) is
+   begin
+      Mmap_Free (Seg.Base, Seg.Size);
+      Seg.Base := Null_Address;
+      Seg.Size := 0;
+   end Delete;
+
+   procedure Set_Rx (Seg : in out Memseg_Type) is
+   begin
+      Mmap_Rx (Seg.Base, Seg.Size);
+   end Set_Rx;
+end Memsegs_Mmap;
+