remove knetbsd support

gcc/ChangeLog:

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

	* config.gcc: Remove support for knetbsd.
	* configure.ac: Likewise.
	* config/i386/knetbsd-gnu.h: Remove.  * config/i386/knetbsd-gnu64.h: Remove.
	* config/knetbsd-gnu.h: Remove.
	* configure: Regenerate.

libgcc/ChangeLog:

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

	* config.host: Remove support for knetbsd.

libstdc++-v3/ChangeLog:

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

	* configure: Regenerate.
	* configure.host: Remove support for knetbsd.
	* crossconfig.m4: Likewise.

contrib/ChangeLog:

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

	* config-list.mk: stop testing knetbsd.

From-SVN: r237662

7 files changed, 17 insertions, 102 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 228f08a..32c14a1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,13 @@
 2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
+	* config.gcc: Remove support for knetbsd.
+	* configure.ac: Likewise.
+	* config/i386/knetbsd-gnu.h: Remove.  * config/i386/knetbsd-gnu64.h: Remove.
+	* config/knetbsd-gnu.h: Remove.
+	* configure: Regenerate.
+
+2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
 	* config.gcc: Remove support for openbsd 2 and 3.
 	* config/openbsd-oldgas.h: Remove.
 
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 7b091fb..669cb9f 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -236,8 +236,7 @@ md_file=
 
 # Obsolete configurations.
 case ${target} in
- *-knetbsd-*				\
- | avr-*rtems*				\
+ avr-*rtems*				\
  | h8300-*rtems*			\
  | m32r-*rtems*			\
  | mep-*				\
@@ -707,7 +706,7 @@ case ${target} in
   esac
   use_gcc_stdint=wrap
   ;;
-*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu)
+*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu)
   extra_options="$extra_options gnu-user.opt"
   gas=yes
   gnu_ld=yes
@@ -716,7 +715,7 @@ case ${target} in
   esac
   tmake_file="t-slibgcc"
   case $target in
-    *-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu | *-*-kopensolaris*-gnu)
+    *-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-kopensolaris*-gnu)
       :;;
     *-*-gnu*)
       native_system_header_dir=/include
@@ -1459,7 +1458,7 @@ x86_64-*-openbsd*)
 	gas=yes
 	gnu_ld=yes
 	;;
-i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-knetbsd*-gnu | i[34567]86-*-gnu* | i[34567]86-*-kopensolaris*-gnu)
+i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-gnu* | i[34567]86-*-kopensolaris*-gnu)
 			# Intel 80386's running GNU/*
 			# with ELF format using glibc 2
 	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h gnu-user.h glibc-stdint.h"
@@ -1515,9 +1514,6 @@ i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-knetbsd*-gnu | i
 			tm_file="${tm_file} i386/gnu-user-common.h i386/gnu-user.h i386/linux-common.h i386/linux.h"
 		fi
 		;;
-	i[34567]86-*-knetbsd*-gnu)
-		tm_file="${tm_file} i386/gnu-user-common.h i386/gnu-user.h knetbsd-gnu.h i386/knetbsd-gnu.h"
-		;;
 	i[34567]86-*-kfreebsd*-gnu)
 		tm_file="${tm_file} i386/gnu-user-common.h i386/gnu-user.h kfreebsd-gnu.h i386/kfreebsd-gnu.h"
 		;;
@@ -1529,7 +1525,7 @@ i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-knetbsd*-gnu | i
 		;;
 	esac
 	;;
-x86_64-*-linux* | x86_64-*-kfreebsd*-gnu | x86_64-*-knetbsd*-gnu)
+x86_64-*-linux* | x86_64-*-kfreebsd*-gnu)
 	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h gnu-user.h glibc-stdint.h \
 		 i386/x86-64.h i386/gnu-user-common.h i386/gnu-user64.h"
 	case ${target} in
@@ -1548,9 +1544,6 @@ x86_64-*-linux* | x86_64-*-kfreebsd*-gnu | x86_64-*-knetbsd*-gnu)
 	x86_64-*-kfreebsd*-gnu)
 		tm_file="${tm_file} kfreebsd-gnu.h i386/kfreebsd-gnu64.h"
 		;;
-	x86_64-*-knetbsd*-gnu)
-		tm_file="${tm_file} knetbsd-gnu.h i386/knetbsd-gnu64.h"
-		;;
 	esac
 	tmake_file="${tmake_file} i386/t-linux64"
 	x86_multilibs="${with_multilib_list}"
diff --git a/gcc/config/i386/knetbsd-gnu.h b/gcc/config/i386/knetbsd-gnu.h
deleted file mode 100644
index 51f8a0c..0000000
--- a/gcc/config/i386/knetbsd-gnu.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* Definitions for Intel 386 running kNetBSD-based GNU systems with ELF format
-   Copyright (C) 2004-2016 Free Software Foundation, Inc.
-   Contributed by Robert Millan.
-
-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 GNU_USER_LINK_EMULATION "elf_i386"
diff --git a/gcc/config/i386/knetbsd-gnu64.h b/gcc/config/i386/knetbsd-gnu64.h
deleted file mode 100644
index fb9e2c0..0000000
--- a/gcc/config/i386/knetbsd-gnu64.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* Definitions for AMD x86-64 running kNetBSD-based GNU systems with ELF format
-   Copyright (C) 2012-2016 Free Software Foundation, Inc.
-
-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 GNU_USER_LINK_EMULATION32 "elf_i386"
-#define GNU_USER_LINK_EMULATION64 "elf_x86_64"
-#define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64"
-
-#define GNU_USER_DYNAMIC_LINKER32 "/lib/ld.so.1"
-#define GNU_USER_DYNAMIC_LINKER64 "/lib/ld-knetbsd-x86-64.so.1"
-#define GNU_USER_DYNAMIC_LINKERX32 "/lib/ld-knetbsd-x32.so.1"
diff --git a/gcc/config/knetbsd-gnu.h b/gcc/config/knetbsd-gnu.h
deleted file mode 100644
index 02b7488..0000000
--- a/gcc/config/knetbsd-gnu.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/* Definitions for kNetBSD-based GNU systems with ELF format
-   Copyright (C) 2004-2016 Free Software Foundation, Inc.
-   Contributed by Robert Millan.
-
-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/>.  */
-
-#undef GNU_USER_TARGET_OS_CPP_BUILTINS    
-#define GNU_USER_TARGET_OS_CPP_BUILTINS()		\
-  do						\
-    {						\
-	builtin_define ("__NetBSD_kernel__");	\
-	builtin_define ("__GLIBC__");		\
-	builtin_define_std ("unix");		\
-	builtin_assert ("system=unix");		\
-	builtin_assert ("system=posix");	\
-    }						\
-  while (0)
-
-
-#undef GNU_USER_DYNAMIC_LINKER
-#define GNU_USER_DYNAMIC_LINKER "/lib/ld.so.1"
diff --git a/gcc/configure b/gcc/configure
index 5648eca..9b1a404 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -5033,10 +5033,6 @@ case "${target}" in
 	;;
     i[34567]86-*-mingw* | x86_64-*-mingw*)
 	;;
-    i[34567]86-*-interix[3-9]*)
-	# Interix 3.x gcc -fpic/-fPIC options generate broken code.
-	# Instead, we relocate shared libraries at runtime.
-	;;
     i[34567]86-*-nto-qnx*)
 	# QNX uses GNU C++, but need to define -shared option too, otherwise
 	# it will coredump.
@@ -18479,7 +18475,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 18482 "configure"
+#line 18478 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -18585,7 +18581,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 18588 "configure"
+#line 18584 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -28517,7 +28513,7 @@ else
        *-*-musl*)
 	 # All versions of musl provide stack protector
 	 gcc_cv_libc_provides_ssp=yes;;
-       *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
+       *-*-linux* | *-*-kfreebsd*-gnu)
       # glibc 2.4 and later provides __stack_chk_fail and
       # either __stack_chk_guard, or TLS access to stack guard canary.
 
diff --git a/gcc/configure.ac b/gcc/configure.ac
index af40895..1bcb6f53 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -5495,7 +5495,7 @@ AC_CACHE_CHECK(__stack_chk_fail in target C library,
        *-*-musl*)
 	 # All versions of musl provide stack protector
 	 gcc_cv_libc_provides_ssp=yes;;
-       *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
+       *-*-linux* | *-*-kfreebsd*-gnu)
       # glibc 2.4 and later provides __stack_chk_fail and
       # either __stack_chk_guard, or TLS access to stack guard canary.
       GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_libc_provides_ssp=yes], [