tests/tcg: enable building for m68k

As before, using Debian SID compilers.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

tests/docker/Makefile.include

@@ -72,6 +72,7 @@ docker-image-debian-sid: NOCACHE=1
 
 docker-image-debian-alpha-cross: docker-image-debian-sid
 docker-image-debian-hppa-cross: docker-image-debian-sid
+docker-image-debian-m68k-cross: docker-image-debian-sid
 docker-image-travis: NOUSER=1
 
 # Specialist build images, sometimes very limited tools

tests/docker/dockerfiles/debian-m68k-cross.docker

@@ -0,0 +1,12 @@
+#
+# Docker cross-compiler target
+#
+# This docker target builds on the debian sid base image which
+# contains cross compilers for Debian "ports" targets.
+#
+FROM qemu:debian-sid
+
+RUN DEBIAN_FRONTEND=noninteractive eatmydata \
+    apt-get install -y --no-install-recommends \
+        gcc-m68k-linux-gnu \
+        libc6-dev-m68k-cross

tests/tcg/m68k/Makefile.include

@@ -0,0 +1,2 @@
+DOCKER_IMAGE=debian-m68k-cross
+DOCKER_CROSS_COMPILER=m68k-linux-gnu-gcc

tests/tcg/m68k/Makefile.target

@@ -0,0 +1,7 @@
+# -*- Mode: makefile -*-
+#
+# m68k specific tweaks - specifically masking out broken tests
+#
+
+# On m68k Linux supports 4k and 8k pages (but 8k is currently broken)
+EXTRA_RUNS+=run-test-mmap-4096 # run-test-mmap-8192