1 files changed, 103 insertions, 0 deletions
diff --git a/src/ortho/mcode/macho.ads b/src/ortho/mcode/macho.ads
new file mode 100644
index 000000000..e080a430f
--- /dev/null
+++ b/src/ortho/mcode/macho.ads
@@ -0,0 +1,103 @@
+--  Macho definitions.
+--  Copyright (C) 2015 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 Interfaces; use Interfaces;
+with System; use System;
+
+package Macho is
+   type Header_32 is record
+      Magic      : Unsigned_32;
+      Cputype    : Unsigned_32;
+      Cpusubtype : Unsigned_32;
+      Filetype   : Unsigned_32;
+      Ncmds      : Unsigned_32;
+      Sizeofcmds : Unsigned_32;
+      Flags      : Unsigned_32;
+   end record;
+
+   --  Size of Filehdr.
+   Header_32_Size : constant Natural := Header_32'Size / Storage_Unit;
+
+   --  Magic numbers.
+   Magic : constant Unsigned_32 := 16#feed_face#;
+   Cputype_I386 : constant Unsigned_32 := 7;
+   Cpusubtype_I386_All : constant Unsigned_32 := 3;
+
+   Mh_Object  : constant Unsigned_32 := 1;
+   Mh_Execute : constant Unsigned_32 := 2;
+
+   --  Load commands.
+   type Load_Command is record
+      Cmd : Unsigned_32;
+      Cmdsize : Unsigned_32;
+   end record;
+   Lc_Size : constant Natural := Load_Command'Size / Storage_Unit;
+
+   Lc_Segment_32 : constant Unsigned_32 := 1;
+   type Segment_Command_32 is record
+      Segname : String (1 .. 16);
+      Vmaddr : Unsigned_32;
+      Vmsize : Unsigned_32;
+      Fileoff : Unsigned_32;
+      Filesize : Unsigned_32;
+      Maxprot : Unsigned_32;
+      Initprot : Unsigned_32;
+      Nsects : Unsigned_32;
+      Flags : Unsigned_32;
+   end record;
+   Segment_Command_32_Size : constant Natural :=
+     Segment_Command_32'Size / Storage_Unit;
+
+   type Section_32 is record
+      Sectname : String (1 .. 16);
+      Segname : String (1 .. 16);
+      Addr : Unsigned_32;
+      Size : Unsigned_32;
+      Offset : Unsigned_32;
+      Align : Unsigned_32;
+      Reloff : Unsigned_32;
+      Nreloc : Unsigned_32;
+      Flags  : Unsigned_32;
+      Reserved1 : Unsigned_32;
+      Reserved2 : Unsigned_32;
+   end record;
+   Section_32_Size : constant Natural := Section_32'Size / Storage_Unit;
+
+   Lc_Symtab : constant Unsigned_32 := 2;
+   type Symtab_Command is record
+      Symoff : Unsigned_32;
+      Nsyms : Unsigned_32;
+      Stroff : Unsigned_32;
+      Strsize : Unsigned_32;
+   end record;
+   Symtab_Command_Size : constant Natural :=
+     Symtab_Command'Size / Storage_Unit;
+
+   type Nlist_32 is record
+      N_Strx : Unsigned_32;
+      N_Type : Unsigned_8;
+      N_Sect : Unsigned_8;
+      N_Desc : Unsigned_16;
+      N_Value : Unsigned_32;
+   end record;
+
+   Nlist_32_Size : constant Natural := Nlist_32'Size / Storage_Unit;
+
+   N_Undf : constant Unsigned_8 := 16#00#;
+   N_Ext  : constant Unsigned_8 := 16#01#;
+   N_Sect : constant Unsigned_8 := 16#0e#;
+end Macho;