We can't use our normal Debian based compilers as Alpha isn't an
officially supported architecture. However it is available as a port
and fortunately cross compilers for all these targets are included in
Debian Sid, the perpetual rolling/unstable/testing version of Debian.

Signed-off-by: Alex Bennée <alex.ben...@linaro.org>
---
 tests/docker/Makefile.include                 |  1 +
 .../dockerfiles/debian-alpha-cross.docker     | 12 +++++++
 .../dockerfiles/debian-cross-build.docker     | 36 +++++++++++++++++++
 tests/docker/dockerfiles/debian-sid.docker    | 23 ++++++++++++
 tests/tcg/alpha/Makefile.include              |  2 ++
 5 files changed, 74 insertions(+)
 create mode 100644 tests/docker/dockerfiles/debian-alpha-cross.docker
 create mode 100644 tests/docker/dockerfiles/debian-cross-build.docker
 create mode 100644 tests/docker/dockerfiles/debian-sid.docker
 create mode 100644 tests/tcg/alpha/Makefile.include

diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
index 6a5aa9ec71..bcf44e80c4 100644
--- a/tests/docker/Makefile.include
+++ b/tests/docker/Makefile.include
@@ -62,6 +62,7 @@ docker-image-debian-ppc64el-cross: docker-image-debian9
 docker-image-debian-s390x-cross: docker-image-debian9
 docker-image-debian-win32-cross: docker-image-debian8-mxe
 docker-image-debian-win64-cross: docker-image-debian8-mxe
+docker-image-debian-alpha-cross: docker-image-debian-sid
 docker-image-travis: NOUSER=1
 
 # Expand all the pre-requistes for each docker image and test combination
diff --git a/tests/docker/dockerfiles/debian-alpha-cross.docker 
b/tests/docker/dockerfiles/debian-alpha-cross.docker
new file mode 100644
index 0000000000..e446f7af3f
--- /dev/null
+++ b/tests/docker/dockerfiles/debian-alpha-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-alpha-linux-gnu \
+        libc6.1-dev-alpha-cross
diff --git a/tests/docker/dockerfiles/debian-cross-build.docker 
b/tests/docker/dockerfiles/debian-cross-build.docker
new file mode 100644
index 0000000000..c3611a7d3a
--- /dev/null
+++ b/tests/docker/dockerfiles/debian-cross-build.docker
@@ -0,0 +1,36 @@
+#
+# Docker multiarch cross-compiler target
+#
+# This docker target is builds on Debian cross compiler targets to build distro
+# with a selection of cross compilers for building test binaries.
+#
+# On its own you can't build much but the docker-foo-cross targets
+# build on top of the base debian image.
+#
+FROM debian:stretch
+
+# Duplicate deb line as deb-src
+RUN cat /etc/apt/sources.list | sed "s/^deb\ /deb-src /" >> 
/etc/apt/sources.list
+
+# Install common build utilities
+RUN apt update
+RUN DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata
+RUN DEBIAN_FRONTEND=noninteractive eatmydata \
+    apt install -y --no-install-recommends \
+        bison \
+        build-essential \
+        ca-certificates \
+        flex \
+        gettext \
+        git \
+        libgmp-dev \
+        libmpfr-dev \
+        libmpc-dev \
+        pkg-config \
+        psmisc \
+        python \
+        texinfo \
+        wget \
+        $(apt-get -s build-dep binutils | egrep ^Inst | cut -d\  -f2) \
+        $(apt-get -s build-dep gcc | egrep ^Inst | cut -d\  -f2) \
+        $(apt-get -s build-dep glibc | egrep ^Inst | cut -d\  -f2)
diff --git a/tests/docker/dockerfiles/debian-sid.docker 
b/tests/docker/dockerfiles/debian-sid.docker
new file mode 100644
index 0000000000..adeb7134ca
--- /dev/null
+++ b/tests/docker/dockerfiles/debian-sid.docker
@@ -0,0 +1,23 @@
+#
+# A number of our guests exist as ports only. We can either use the ports repo 
or get everything from SID
+#
+
+FROM debian:sid-slim
+
+# Duplicate deb line as deb-src
+RUN cat /etc/apt/sources.list | sed "s/^deb\ /deb-src /" >> 
/etc/apt/sources.list
+
+# Install common build utilities
+RUN apt update
+RUN DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata
+RUN DEBIAN_FRONTEND=noninteractive eatmydata \
+    apt install -y --no-install-recommends \
+        bison \
+        build-essential \
+        ca-certificates \
+        flex \
+        git \
+        pkg-config \
+        psmisc \
+        python \
+        texinfo
diff --git a/tests/tcg/alpha/Makefile.include b/tests/tcg/alpha/Makefile.include
new file mode 100644
index 0000000000..c7dc48eadb
--- /dev/null
+++ b/tests/tcg/alpha/Makefile.include
@@ -0,0 +1,2 @@
+DOCKER_IMAGE=debian-alpha-cross
+DOCKER_CROSS_COMPILER=alpha-linux-gnu-gcc
-- 
2.17.0


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