summaryrefslogtreecommitdiff
path: root/ortho/mcode/memsegs_mmap.ads
diff options
context:
space:
mode:
Diffstat (limited to 'ortho/mcode/memsegs_mmap.ads')
-rw-r--r--ortho/mcode/memsegs_mmap.ads49
1 files changed, 49 insertions, 0 deletions
diff --git a/ortho/mcode/memsegs_mmap.ads b/ortho/mcode/memsegs_mmap.ads
new file mode 100644
index 0000000..ba7d766
--- /dev/null
+++ b/ortho/mcode/memsegs_mmap.ads
@@ -0,0 +1,49 @@
+-- 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.
+with System; use System;
+
+package Memsegs_Mmap is
+ -- A memseg is a growable memory space. It can be resized with Resize.
+ -- After each operation the base address can change and must be get
+ -- with Get_Address.
+ type Memseg_Type is private;
+
+ -- Create a new memseg.
+ function Create return Memseg_Type;
+
+ -- Resize the memseg.
+ procedure Resize (Seg : in out Memseg_Type; Size : Natural);
+
+ -- Get the base address.
+ function Get_Address (Seg : Memseg_Type) return Address;
+
+ -- Free all the memory and initialize the memseg.
+ procedure Delete (Seg : in out Memseg_Type);
+
+ -- Set the protection to read+execute.
+ procedure Set_Rx (Seg : in out Memseg_Type);
+
+ pragma Inline (Create);
+ pragma Inline (Get_Address);
+private
+ type Memseg_Type is record
+ Base : Address := Null_Address;
+ Size : Natural := 0;
+ end record;
+end Memsegs_Mmap;
+