Move 'enum bfd_endian' to a non-generated header

Because:

- GDB uses enum bfd_endian extensively.
- gdbserver does not build/link-with bfd.
- We'd like to share more code between gdb and gdbserver.

It'd make our lives easier if we could just use bfd_endian in
gdbserver as well.

The problem is that bfd_endian is defined in a header that only exists
if bfd is built/configured.

Thus this moves bfd_endian to a separate header, so gdbserver can
include it.

bfd/ChangeLog:
2016-02-11  Pedro Alves  <palves@redhat.com>

	* bfd-in.h: Include bfd-types.h
	* bfd-in2.h: Regenerate.
	* targets.c (enum bfd_endian): Moved to include/bfd-types.h.

include/ChangeLog:
2016-02-11  Pedro Alves  <palves@redhat.com>

	* bfd-types.h: New file.

bfd/bfd-in.h

@@ -35,6 +35,7 @@ extern "C" {
 #include "ansidecl.h"
 #include "symcat.h"
 #include <sys/stat.h>
+#include "bfd-types.h"
 
 #if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
 #ifndef SABER

bfd/bfd-in2.h

@@ -42,6 +42,7 @@ extern "C" {
 #include "ansidecl.h"
 #include "symcat.h"
 #include <sys/stat.h>
+#include "bfd-types.h"
 
 #if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
 #ifndef SABER
@@ -7124,8 +7125,6 @@ enum bfd_flavour
   bfd_target_sym_flavour
 };
 
-enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
-
 /* Forward declaration.  */
 typedef struct bfd_link_info _bfd_link_info;
 

bfd/targets.c

@@ -171,8 +171,6 @@ DESCRIPTION
 .  bfd_target_sym_flavour
 .};
 .
-.enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
-.
 .{* Forward declaration.  *}
 .typedef struct bfd_link_info _bfd_link_info;
 .

include/bfd-types.h

@@ -0,0 +1,26 @@
+/* bfd core types that do not depend on configuration.
+
+   Copyright (C) 1990-2016 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 3 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.  */
+
+#ifndef BFD_TYPES_H
+#define BFD_TYPES_H
+
+enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
+
+#endif