tests/tcg: enable debian-nios2-cross for test building

Now we have a nios2 test image we can start using it to build tests.
However signal handling in nios2 is still broken so we disable the
signals and linux-test tests that trigger the bug.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211026102234.3961636-12-alex.bennee@linaro.org>

MAINTAINERS

@@ -226,6 +226,7 @@ F: target/microblaze/
 F: hw/microblaze/
 F: disas/microblaze.c
 F: tests/docker/dockerfiles/debian-microblaze-cross.d/build-toolchain.sh
+F: tests/tcg/nios2/Makefile.target
 
 MIPS TCG CPUs
 M: Philippe Mathieu-Daudé <f4bug@amsat.org>

tests/tcg/configure.sh

@@ -60,6 +60,7 @@ fi
 : ${cross_cc_mips64="mips64-linux-gnuabi64-gcc"}
 : ${cross_cc_mipsel="mipsel-linux-gnu-gcc"}
 : ${cross_cc_mips="mips-linux-gnu-gcc"}
+: ${cross_cc_nios2="nios2-linux-gnu-gcc"}
 : ${cross_cc_ppc="powerpc-linux-gnu-gcc"}
 : ${cross_cc_cflags_ppc="-m32"}
 : ${cross_cc_ppc64="powerpc64-linux-gnu-gcc"}
@@ -159,6 +160,11 @@ for target in $target_list; do
       container_image=debian-mips-cross
       container_cross_cc=mips-linux-gnu-gcc
       ;;
+    nios2-*)
+      container_hosts=x86_64
+      container_image=debian-nios2-cross
+      container_cross_cc=nios2-linux-gnu-gcc
+      ;;
     ppc-*|ppc64abi32-*)
       container_hosts=x86_64
       container_image=debian-powerpc-test-cross

tests/tcg/nios2/Makefile.target

+# nios2 specific test tweaks
+
+# Currently nios2 signal handling is broken
+run-signals: signals
+	$(call skip-test, $<, "BROKEN")
+run-plugin-signals-with-%:
+	$(call skip-test, $<, "BROKEN")
+run-linux-test: linux-test
+	$(call skip-test, $<, "BROKEN")
+run-plugin-linux-test-with-%:
+	$(call skip-test, $<, "BROKEN")