remove support for targeting openbsd 2 or 3

contrib/ChangeLog:

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* config-list.mk: Stop testing openbsd3.0.

libgcc/ChangeLog:

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* config.host: Remove support for openbsd 2 and 3.

gcc/ChangeLog:

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* config.gcc: Remove support for openbsd 2 and 3.
	* config/openbsd-oldgas.h: Remove.

From-SVN: r237661

contrib/ChangeLog

 2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
+	* config-list.mk: Stop testing openbsd3.0.
+
+2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
 	* config-list.mk: Remove interix target.
 
 2016-06-21  David Edelsohn  <dje.gcc@gmail.com>

contrib/config-list.mk

@@ -49,9 +49,8 @@ LIST = aarch64-elf aarch64-linux-gnu aarch64-rtems \
   i686-pc-linux-gnu i686-apple-darwin i686-apple-darwin9 i686-apple-darwin10 \
   i486-freebsd4 i686-freebsd6 i686-kfreebsd-gnu \
   i686-netbsdelf9 i686-knetbsd-gnuOPT-enable-obsolete \
-  i686-openbsd i686-openbsd3.0OPT-enable-obsolete \
-  i686-elf i686-kopensolaris-gnu i686-symbolics-gnu i686-pc-msdosdjgpp \
-  i686-lynxos i686-nto-qnx \
+  i686-openbsd i686-elf i686-kopensolaris-gnu i686-symbolics-gnu \
+  i686-pc-msdosdjgpp i686-lynxos i686-nto-qnx \
   i686-rtems i686-solaris2.10 i686-wrs-vxworks \
   i686-wrs-vxworksae \
   i686-cygwinOPT-enable-threads=yes i686-mingw32crt ia64-elf \

gcc/ChangeLog

 2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
+	* config.gcc: Remove support for openbsd 2 and 3.
+	* config/openbsd-oldgas.h: Remove.
+
+2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
 	* config.gcc: Remove interix support.
 	* config/i386/i386-interix.h: Remove.
 	* config/i386/interix.opt: Remove.

gcc/config.gcc

@@ -237,8 +237,6 @@ md_file=
 # Obsolete configurations.
 case ${target} in
  *-knetbsd-*				\
- | *-openbsd2*				\
- | *-openbsd3*				\
  | avr-*rtems*				\
  | h8300-*rtems*			\
  | m32r-*rtems*			\
@@ -805,10 +803,6 @@ case ${target} in
       ;;
   esac
   case ${target} in
-    *-*-openbsd2.*|*-*-openbsd3.[012])
-      tm_defines="${tm_defines} HAS_LIBC_R=1" ;;
-  esac
-  case ${target} in
     *-*-openbsd4.[3-9]|*-*-openbsd[5-9]*)
       default_use_cxa_atexit=yes
       ;;
@@ -1451,14 +1445,6 @@ x86_64-*-netbsd*)
 	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h netbsd.h netbsd-elf.h i386/x86-64.h i386/netbsd64.h"
 	extra_options="${extra_options} netbsd.opt netbsd-elf.opt"
 	;;
-i[34567]86-*-openbsd2.*|i[34567]86-*openbsd3.[0123])
-	tm_file="i386/i386.h i386/unix.h i386/bsd.h i386/gas.h i386/gstabs.h openbsd-oldgas.h openbsd.h i386/openbsd.h"
-	extra_options="${extra_options} openbsd.opt"
-	# needed to unconfuse gdb
-	tmake_file="${tmake_file} t-openbsd i386/t-openbsd"
-	# we need collect2 until our bug is fixed...
-	use_collect2=yes
-	;;
 i[34567]86-*-openbsd*)
 	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h"
 	tm_file="${tm_file} openbsd.h openbsd-stdint.h openbsd-libpthread.h i386/openbsdelf.h"

gcc/config/openbsd-oldgas.h

-/* Generic settings for a.out OpenBSD systems.
-   Copyright (C) 2002-2016 Free Software Foundation, Inc.
-   Contributed by David E. O'Brien <obrien@FreeBSD.org>.
-
-This file is part of GCC.
-
-GCC 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, or (at your option)
-any later version.
-
-GCC 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 COPYING3.  If not see
-<http://www.gnu.org/licenses/>.  */
-
-
-#define OBSD_OLD_GAS
-
-/* OpenBSD3.0 had no libpthread, pthreads lived in -lc_r */
-#define OBSD_LIB_SPEC "%{!shared:-lc%{pthread:_r}}"
-

libgcc/ChangeLog

 2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
+	* config.host: Remove support for openbsd 2 and 3.
+
+2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
 	* config.host: Remove interix support.
 	* config/i386/t-interix: Remove.
 

libgcc/config.host

@@ -603,8 +603,6 @@ i[34567]86-*-netbsdelf*)
 x86_64-*-netbsd*)
 	tmake_file="${tmake_file} i386/t-crtstuff"
 	;;
-i[34567]86-*-openbsd2.*|i[34567]86-*openbsd3.[0123])
-	;;
 i[34567]86-*-openbsd*)
 	;;
 x86_64-*-openbsd*)