Add FreeBSD/mips architecture.

This has been tested for the n64 and o32 ABIs.  Signal frame unwinders for
both ABIs are provided.  FreeBSD/mips requires custom linkmap offsets since
it contains an additional l_off member in 'struct link_map' that other
FreeBSD platforms do not have.  Support for collecting and supplying
general purpose and floating point register sets are provided.  Common
routines for working with native format register sets are exported for
use by the native target.

gdb/ChangeLog:

	* Makefile.in (ALL_TARGET_OBS): Add mips-fbsd-tdep.o.
	(ALLDEPFILES): Add mips-fbsd-tdep.c.
	* NEWS: Mention new FreeBSD/mips target.
	* configure.tgt: Add mips*-*-freebsd*.
	* mips-fbsd-tdep.c: New file.
	* mips-fbsd-tdep.h: New file.

gdb/doc/ChangeLog:

	* gdb.texinfo (Contributors): Add SRI International and University
	of Cambridge for FreeBSD/mips.

1 files changed, 28 insertions, 0 deletions

diff --git a/gdb/mips-fbsd-tdep.h b/gdb/mips-fbsd-tdep.h
new file mode 100644
index 0000000..8a197e6
--- /dev/null
+++ b/gdb/mips-fbsd-tdep.h
@@ -0,0 +1,28 @@
+/* Common target dependent code for GDB on MIPS systems running FreeBSD.
+
+   Copyright (C) 2017 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef MIPS_FBSD_TDEP_H
+#define MIPS_FBSD_TDEP_H
+
+void mips_fbsd_supply_fpregs (struct regcache *, int, const void *, size_t);
+void mips_fbsd_supply_gregs (struct regcache *, int, const void *, size_t);
+void mips_fbsd_collect_fpregs (const struct regcache *, int, void *, size_t);
+void mips_fbsd_collect_gregs (const struct regcache *, int, void *, size_t);
+
+#endif /* MIPS_FBSD_TDEP_H */