xtensa: use psram-fix multilib for esp32 chip only

gcc/config.gcc

@@ -3564,6 +3564,11 @@ xstormy16-*-elf)
 	extra_options=stormy16/stormy16.opt
 	tmake_file="stormy16/t-stormy16"
 	;;
+xtensa*-esp32-elf*)
+	tm_file="${tm_file} dbxelf.h elfos.h newlib-stdint.h xtensa/elf.h"
+	tmake_file="${tmake_file} xtensa/t-xtensa-psram-fix"
+	extra_options="${extra_options} xtensa/elf.opt"
+	;;
 xtensa*-*-elf*)
 	tm_file="${tm_file} dbxelf.h elfos.h newlib-stdint.h xtensa/elf.h"
 	extra_options="${extra_options} xtensa/elf.opt"

gcc/config/xtensa/t-xtensa

@@ -18,5 +18,5 @@
 
 $(out_object_file): gt-xtensa.h
 
-MULTILIB_OPTIONS = mfix-esp32-psram-cache-issue fno-rtti
-MULTILIB_DIRNAMES = esp32-psram no-rtti
+MULTILIB_OPTIONS = fno-rtti
+MULTILIB_DIRNAMES = no-rtti

gcc/config/xtensa/t-xtensa-psram-fix

@@ -0,0 +1,22 @@
+# Copyright (C) 2002-2018 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/>.
+
+$(out_object_file): gt-xtensa.h
+
+MULTILIB_OPTIONS = mfix-esp32-psram-cache-issue fno-rtti
+MULTILIB_DIRNAMES = esp32-psram no-rtti