[PATCH] tests/docker: Fix microblaze atomics

[Ilya Leoshkevich <iii@linux.ibm.com>]

GCC produces invalid code for microblaze atomics.

The fix is unfortunately not upstream, so fetch it from an external
location and apply it locally.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 .../debian-microblaze-cross.d/build-toolchain.sh          | 8 ++++++++
 tests/docker/dockerfiles/debian-toolchain.docker          | 7 +++++++
 2 files changed, 15 insertions(+)

diff --git a/tests/docker/dockerfiles/debian-microblaze-cross.d/build-toolchain.sh b/tests/docker/dockerfiles/debian-microblaze-cross.d/build-toolchain.sh
index 23ec0aa9a72..c5cd0aa931c 100755
--- a/tests/docker/dockerfiles/debian-microblaze-cross.d/build-toolchain.sh
+++ b/tests/docker/dockerfiles/debian-microblaze-cross.d/build-toolchain.sh
@@ -10,6 +10,8 @@ TOOLCHAIN_INSTALL=/usr/local
 TOOLCHAIN_BIN=${TOOLCHAIN_INSTALL}/bin
 CROSS_SYSROOT=${TOOLCHAIN_INSTALL}/$TARGET/sys-root
 
+GCC_PATCH0_URL=https://raw.githubusercontent.com/Xilinx/meta-xilinx/refs/tags/xlnx-rel-v2024.1/meta-microblaze/recipes-devtools/gcc/gcc-12/0009-Patch-microblaze-Fix-atomic-boolean-return-value.patch
+
 export PATH=${TOOLCHAIN_BIN}:$PATH
 
 #
@@ -31,6 +33,12 @@ mv gcc-11.2.0 src-gcc
 mv musl-1.2.2 src-musl
 mv linux-5.10.70 src-linux
 
+#
+# Patch gcc
+#
+
+wget -O - ${GCC_PATCH0_URL} | patch -d src-gcc -p1
+
 mkdir -p bld-hdr bld-binu bld-gcc bld-musl
 mkdir -p ${CROSS_SYSROOT}/usr/include
 
diff --git a/tests/docker/dockerfiles/debian-toolchain.docker b/tests/docker/dockerfiles/debian-toolchain.docker
index 687a97fec4a..ab4ce29533d 100644
--- a/tests/docker/dockerfiles/debian-toolchain.docker
+++ b/tests/docker/dockerfiles/debian-toolchain.docker
@@ -10,6 +10,8 @@ FROM docker.io/library/debian:11-slim
 # ??? The build-dep isn't working, missing a number of
 # minimal build dependiencies, e.g. libmpc.
 
+RUN sed 's/^deb /deb-src /' </etc/apt/sources.list >/etc/apt/sources.list.d/deb-src.list
+
 RUN apt update && \
     DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata && \
     DEBIAN_FRONTEND=noninteractive eatmydata \
@@ -33,6 +35,11 @@ RUN cd /root && ./build-toolchain.sh
 # and the build trees by restoring the original image,
 # then copying the built toolchain from stage 0.
 FROM docker.io/library/debian:11-slim
+RUN apt update && \
+    DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata && \
+    DEBIAN_FRONTEND=noninteractive eatmydata \
+    apt install -y --no-install-recommends \
+        libmpc3
 COPY --from=0 /usr/local /usr/local
 # As a final step configure the user (if env is defined)
 ARG USER
-- 
2.46.0