gitlab: enable a very minimal build with the tricore container

Rather than base of the shared Debian 10 container which would require
us to bring in even more dependencies just bring in what is needed for
building tricore-softmmu in GitLab. We don't even remove the container
from the DOCKER_PARTIAL_IMAGES lest we cause more confusion.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Message-Id: <20210720232703.10650-28-alex.bennee@linaro.org>

.gitlab-ci.d/buildtest.yml

@@ -354,6 +354,17 @@ build-some-softmmu:
     TARGETS: xtensa-softmmu arm-softmmu aarch64-softmmu alpha-softmmu
     MAKE_CHECK_ARGS: check-tcg
 
+# We build tricore in a very minimal tricore only container
+build-tricore-softmmu:
+  extends: .native_build_job_template
+  needs:
+    job: tricore-debian-cross-container
+  variables:
+    IMAGE: debian-tricore-cross
+    CONFIGURE_ARGS: --disable-tools --disable-fdt --enable-debug
+    TARGETS: tricore-softmmu
+    MAKE_CHECK_ARGS: check-tcg
+
 clang-system:
   extends: .native_build_job_template
   needs:

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

@@ -1,23 +1,47 @@
 #
 # Docker TriCore cross-compiler target
 #
-# This docker target builds on the debian Stretch base image.
+# This docker target builds on the Debian Buster base image but
+# doesn't inherit from the common one to avoid bringing in unneeded
+# dependencies.
 #
 # Copyright (c) 2018 Philippe Mathieu-Daudé
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 #
-FROM qemu/debian10
+FROM docker.io/library/debian:buster-slim
 
 MAINTAINER Philippe Mathieu-Daudé <f4bug@amsat.org>
 
+RUN apt update && \
+    DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata && \
+    DEBIAN_FRONTEND=noninteractive eatmydata apt install -yy \
+       bzip2 \
+       ca-certificates \
+       ccache \
+       g++ \
+       gcc \
+       git \
+       libglib2.0-dev \
+       libpixman-1-dev \
+       libtest-harness-perl \
+       locales \
+       make \
+       ninja-build \
+       perl-base \
+       pkgconf \
+       python3-pip \
+       python3-setuptools \
+       python3-wheel
+
 RUN git clone --single-branch \
         https://github.com/bkoppelmann/tricore-binutils.git \
         /usr/src/binutils && \
     cd /usr/src/binutils && chmod +x missing && \
-    CFLAGS=-w ./configure --prefix=/usr --disable-nls --target=tricore && \
+    CFLAGS=-w ./configure --prefix=/usr/local --disable-nls --target=tricore && \
     make && make install && \
     rm -rf /usr/src/binutils
 
-# This image isn't designed for building QEMU but building tests
-ENV QEMU_CONFIGURE_OPTS --disable-system --disable-user
+# This image can only build a very minimal QEMU as well as the tests
+ENV DEF_TARGET_LIST tricore-softmmu
+ENV QEMU_CONFIGURE_OPTS --disable-user --disable-tools --disable-fdt