Add x86_64-mingw64 target

include/coff/x86_64.h

@@ -0,0 +1,54 @@
+/* COFF information for AMD 64.
+   Copyright 2006 Free Software Foundation, Inc.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program 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 of the License, or
+   (at your option) any later version.
+
+   This program 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 this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+   
+   Written by Kai Tietz, OneVision Software GmbH&CoKg.  */
+
+#define L_LNNO_SIZE 2
+#define INCLUDE_COMDAT_FIELDS_IN_AUXENT
+
+#include "coff/external.h"
+
+#define AMD64MAGIC	0x8664
+
+#define AMD64BADMAG(x)	((x).f_magic != AMD64MAGIC)
+#define IMAGE_NT_OPTIONAL_HDR64_MAGIC      0x20b
+
+#define OMAGIC          0404    /* Object files, eg as output.  */
+#define ZMAGIC          IMAGE_NT_OPTIONAL_HDR64_MAGIC    /* Demand load format, eg normal ld output 0x10b.  */
+#define STMAGIC		0401	/* Target shlib.  */
+#define SHMAGIC		0443	/* Host   shlib.  */
+
+/* Define some NT default values.  */
+/*  #define NT_IMAGE_BASE        0x400000 moved to internal.h.  */
+#define NT_SECTION_ALIGNMENT 0x1000
+#define NT_FILE_ALIGNMENT    0x200
+#define NT_DEF_RESERVE       0x100000
+#define NT_DEF_COMMIT        0x1000
+
+/* Relocation directives.  */
+
+struct external_reloc
+{
+  char r_vaddr[4];
+  char r_symndx[4];
+  char r_type[2];
+};
+
+#define RELOC struct external_reloc
+#define RELSZ 10