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-- 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;
type Header_64 is record
Magic : Unsigned_32;
Cputype : Unsigned_32;
Cpusubtype : Unsigned_32;
Filetype : Unsigned_32;
Ncmds : Unsigned_32;
Sizeofcmds : Unsigned_32;
Flags : Unsigned_32;
Reserved : Unsigned_32;
end record;
-- Size of Filehdr.
Header_32_Size : constant Natural := Header_32'Size / Storage_Unit;
Header_64_Size : constant Natural := Header_64'Size / Storage_Unit;
-- Magic numbers.
Magic_32 : constant Unsigned_32 := 16#feed_face#;
Magic_64 : constant Unsigned_32 := 16#feed_facf#;
Cpu_Arch_64 : constant Unsigned_32 := 16#0100_0000#;
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_Segment_64 : constant Unsigned_32 := 16#19#;
type Segment_Command_64 is record
Segname : String (1 .. 16);
Vmaddr : Unsigned_64;
Vmsize : Unsigned_64;
Fileoff : Unsigned_64;
Filesize : Unsigned_64;
Maxprot : Unsigned_32;
Initprot : Unsigned_32;
Nsects : Unsigned_32;
Flags : Unsigned_32;
end record;
Segment_Command_64_Size : constant Natural :=
Segment_Command_64'Size / Storage_Unit;
type Section_64 is record
Sectname : String (1 .. 16);
Segname : String (1 .. 16);
Addr : Unsigned_64;
Size : Unsigned_64;
Offset : Unsigned_32;
Align : Unsigned_32;
Reloff : Unsigned_32;
Nreloc : Unsigned_32;
Flags : Unsigned_32;
Reserved1 : Unsigned_32;
Reserved2 : Unsigned_32;
Reserved3 : Unsigned_32;
end record;
Section_64_Size : constant Natural := Section_64'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;
type Nlist_64 is record
N_Strx : Unsigned_32;
N_Type : Unsigned_8;
N_Sect : Unsigned_8;
N_Desc : Unsigned_16;
N_Value : Unsigned_64;
end record;
Nlist_64_Size : constant Natural := Nlist_64'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;
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