Hexagon (tests/tcg/hexagon) TCG tests - multiarch

Enable multiarch tests for Hexagon
Modify tests/tcg/configure.sh
Add reference files to tests/tcg/hexagon

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1612763186-18161-32-git-send-email-tsimpson@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tests/tcg/configure.sh

@@ -49,6 +49,8 @@ fi
 : $(cross_cc_alpha="alpha-linux-gnu-gcc")
 : ${cross_cc_arm="arm-linux-gnueabihf-gcc"}
 : ${cross_cc_cflags_armeb="-mbig-endian"}
+: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
+: ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
 : ${cross_cc_hppa="hppa-linux-gnu-gcc"}
 : ${cross_cc_i386="i386-pc-linux-gnu-gcc"}
 : ${cross_cc_cflags_i386="-m32"}
@@ -94,7 +96,7 @@ for target in $target_list; do
     xtensa|xtensaeb)
       arches=xtensa
       ;;
-    alpha|cris|hppa|i386|lm32|microblaze|microblazeel|m68k|openrisc|riscv64|s390x|sh4|sparc64)
+    alpha|cris|hexagon|hppa|i386|lm32|microblaze|microblazeel|m68k|openrisc|riscv64|s390x|sh4|sparc64)
       arches=$target
       ;;
     *)

tests/tcg/hexagon/Makefile.target

@@ -0,0 +1,30 @@
+##
+##  Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
+##
+##  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 2 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/>.
+##
+
+# Hexagon doesn't support gdb, so skip the EXTRA_RUNS
+EXTRA_RUNS =
+
+# Hexagon has 64K pages, so increase the timeout to keep
+# test-mmap from timing out
+ifeq ($(CONFIG_DEBUG_TCG),y)
+TIMEOUT=800
+else
+TIMEOUT=500
+endif
+
+
+CFLAGS += -Wno-incompatible-pointer-types -Wno-undefined-internal