Remove m32r{,le}-*-linux* support from GCC

m32r support never made it to glibc and the support for the Linux kernel
was removed with 4.18. It does not remove much but no reason to keep
around a port which never worked or one which the support in other
projects is gone.

OK? Checked to make sure m32r-linux and m32rle-linux were rejected
when building.

contrib/ChangeLog:

	* config-list.mk: Remove m32r-linux and m32rle-linux
	from the list.

gcc/ChangeLog:

	* config.gcc: Add m32r-*-linux* and m32rle-*-linux*
	to the Unsupported targets list.
	Remove support for m32r-*-linux* and m32rle-*-linux*.
	* config/m32r/linux.h: Removed.
	* config/m32r/t-linux: Removed.

libgcc/ChangeLog:

	* config.host: Remove m32r-*-linux* and m32rle-*-linux*.
	* config/m32r/libgcc-glibc.ver: Removed.
	* config/m32r/t-linux: Removed.

3 files changed, 0 insertions, 59 deletions

diff --git a/libgcc/config.host b/libgcc/config.host
index e2b4be4..432a3e1 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -926,12 +926,6 @@ m32r-*-elf*)
 m32rle-*-elf*)
 	tmake_file=t-fdpbit
 	;;
-m32r-*-linux*)
-	tmake_file="$tmake_file m32r/t-linux t-fdpbit"
- 	;;
-m32rle-*-linux*)
-	tmake_file="$tmake_file m32r/t-linux t-fdpbit"
-	;;
 m68k-*-elf* | fido-*-elf)
 	tmake_file="$tmake_file m68k/t-floatlib"
 	;;
diff --git a/libgcc/config/m32r/libgcc-glibc.ver b/libgcc/config/m32r/libgcc-glibc.ver
deleted file mode 100644
index cb52aa1..0000000
--- a/libgcc/config/m32r/libgcc-glibc.ver
+++ /dev/null
@@ -1,48 +0,0 @@
-# Copyright (C) 2004-2021 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/>.
-
-# In order to work around the very problems that force us to now generally
-# create a libgcc.so, glibc reexported a number of routines from libgcc.a.
-# By now choosing the same version tags for these specific routines, we
-# maintain enough binary compatibility to allow future versions of glibc
-# to defer implementation of these routines to libgcc.so via DT_AUXILIARY.
-
-# Note that we cannot use the default libgcc-glibc.ver file on sh,
-# because GLIBC_2.0 does not exist on this architecture, as the first 
-# ever glibc release on the platform was GLIBC_2.3.
-
-%exclude {
-  __register_frame
-  __register_frame_table
-  __deregister_frame
-  __register_frame_info
-  __deregister_frame_info
-  __frame_state_for
-  __register_frame_info_table
-}
-
-%inherit GCC_3.0 GLIBC_2.3
-GLIBC_2.3 {
-  __register_frame
-  __register_frame_table
-  __deregister_frame
-  __register_frame_info
-  __deregister_frame_info
-  __frame_state_for
-  __register_frame_info_table
-}
diff --git a/libgcc/config/m32r/t-linux b/libgcc/config/m32r/t-linux
deleted file mode 100644
index 5223b73..0000000
--- a/libgcc/config/m32r/t-linux
+++ /dev/null
@@ -1,5 +0,0 @@
-# Turn off the SDA while compiling libgcc2.  There are no headers for it
-# and we want maximal upward compatibility here.
-HOST_LIBGCC2_CFLAGS += -G 0
-
-SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/m32r/libgcc-glibc.ver