[RFC PATCH 1/3] tests/docker: gcc-10 based images for ppc64{, le} tests

[matheus . ferst]

From: Matheus Ferst <matheus.ferst@eldorado.org.br>

A newer compiler is needed to build tests for Power10 instructions. As
done for arm64 on c729a99d2701, new '-test-cross' images are created for
ppc64 and ppc64le. As done on 936fda4d771f, a test for compiler support
is added to verify that the toolchain in use has '-mpower10'.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
---
 tests/docker/Makefile.include                   |  4 ++++
 .../dockerfiles/debian-ppc64-test-cross.docker  | 13 +++++++++++++
 .../debian-ppc64el-test-cross.docker            | 17 +++++++++++++++++
 tests/tcg/configure.sh                          | 12 ++++++++----
 4 files changed, 42 insertions(+), 4 deletions(-)
 create mode 100644 tests/docker/dockerfiles/debian-ppc64-test-cross.docker
 create mode 100644 tests/docker/dockerfiles/debian-ppc64el-test-cross.docker

diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
index 9f464cb92c..1f8941d290 100644
--- a/tests/docker/Makefile.include
+++ b/tests/docker/Makefile.include
@@ -152,10 +152,14 @@ docker-image-debian-sparc64-cross: docker-image-debian10
 docker-image-debian-tricore-cross: docker-image-debian10
 docker-image-debian-all-test-cross: docker-image-debian10
 docker-image-debian-arm64-test-cross: docker-image-debian11
+docker-image-debian-ppc64-test-cross: docker-image-debian11
+docker-image-debian-ppc64el-test-cross: docker-image-debian11
 
 # These images may be good enough for building tests but not for test builds
 DOCKER_PARTIAL_IMAGES += debian-alpha-cross
 DOCKER_PARTIAL_IMAGES += debian-arm64-test-cross
+DOCKER_PARTIAL_IMAGES += debian-ppc64-test-cross
+DOCKER_PARTIAL_IMAGES += debian-ppc64el-test-cross
 DOCKER_PARTIAL_IMAGES += debian-hppa-cross
 DOCKER_PARTIAL_IMAGES += debian-m68k-cross debian-mips64-cross
 DOCKER_PARTIAL_IMAGES += debian-powerpc-cross debian-ppc64-cross
diff --git a/tests/docker/dockerfiles/debian-ppc64-test-cross.docker 
b/tests/docker/dockerfiles/debian-ppc64-test-cross.docker
new file mode 100644
index 0000000000..66abfdeb47
--- /dev/null
+++ b/tests/docker/dockerfiles/debian-ppc64-test-cross.docker
@@ -0,0 +1,13 @@
+#
+# Docker ppc64 cross-compiler target (tests only)
+#
+# This docker target builds on the debian Bullseye base image.
+#
+FROM qemu/debian11
+
+# Add the foreign architecture we want and install dependencies
+RUN dpkg --add-architecture ppc64
+RUN apt update && \
+    DEBIAN_FRONTEND=noninteractive eatmydata \
+        apt install -y --no-install-recommends \
+        libc6-dev-ppc64-cross gcc-10-powerpc64-linux-gnu
diff --git a/tests/docker/dockerfiles/debian-ppc64el-test-cross.docker 
b/tests/docker/dockerfiles/debian-ppc64el-test-cross.docker
new file mode 100644
index 0000000000..7582508467
--- /dev/null
+++ b/tests/docker/dockerfiles/debian-ppc64el-test-cross.docker
@@ -0,0 +1,17 @@
+#
+# Docker ppc64el cross-compiler target (tests only)
+#
+# This docker target builds on the debian Bullseye base image.
+#
+FROM qemu/debian11
+
+# Add the foreign architecture we want and install dependencies
+RUN dpkg --add-architecture ppc64el
+RUN apt update && \
+    DEBIAN_FRONTEND=noninteractive eatmydata \
+        apt install -y --no-install-recommends \
+        crossbuild-essential-ppc64el gcc-10-powerpc64le-linux-gnu
+
+# Specify the cross prefix for this image (see tests/docker/common.rc)
+#ENV QEMU_CONFIGURE_OPTS --cross-prefix=powerpc64le-linux-gnu-
+#ENV DEF_TARGET_LIST ppc64-softmmu,ppc64-linux-user,ppc64abi32-linux-user
diff --git a/tests/tcg/configure.sh b/tests/tcg/configure.sh
index fa1a4261a4..5f5db91a01 100755
--- a/tests/tcg/configure.sh
+++ b/tests/tcg/configure.sh
@@ -170,13 +170,13 @@ for target in $target_list; do
       ;;
     ppc64-*)
       container_hosts=x86_64
-      container_image=debian-ppc64-cross
-      container_cross_cc=powerpc64-linux-gnu-gcc
+      container_image=debian-ppc64-test-cross
+      container_cross_cc=powerpc64-linux-gnu-gcc-10
       ;;
     ppc64le-*)
       container_hosts=x86_64
-      container_image=debian-ppc64el-cross
-      container_cross_cc=powerpc64le-linux-gnu-gcc
+      container_image=debian-ppc64el-test-cross
+      container_cross_cc=powerpc64le-linux-gnu-gcc-10
       ;;
     riscv64-*)
       container_hosts=x86_64
@@ -280,6 +280,10 @@ for target in $target_list; do
                -mpower8-vector -o $TMPE $TMPC; then
                 echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> $config_target_mak
             fi
+            if do_compiler "$target_compiler" $target_compiler_cflags \
+               -mpower10 -o $TMPE $TMPC; then
+                echo "CROSS_CC_HAS_POWER10=y" >> $config_target_mak
+            fi
         ;;
         i386-linux-user)
             if do_compiler "$target_compiler" $target_compiler_cflags \
-- 
2.25.1