Auto merge of #143415 - Gelbpunkt:cleanup-dist-ppc64le-toolchain, r=<try>

Get rid of build-powerpc64le-toolchain.sh

The dist-powerpc64le-linux-musl runner never actually used the toolchain that the script produced, it instead used the one from crosstool-ng.

The dist-powerpc64le-linux-gnu runner did use it, from what I can tell mainly to get a glibc 2.17 version with ppc64le support backported. Since crosstool-ng has the necessary patches, we can just use crosstool-ng to get an appropriate toolchain. While at it, use kernel 3.10 headers since that's the version documented in platform support for this target.

try-job: dist-powerpc64le-linux-gnu
try-job: dist-powerpc64le-linux-musl

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Author: rust-bors[bot]

src/ci/docker/host-x86_64/dist-powerpc64le-linux-gnu/Dockerfile

@@ -15,19 +15,15 @@ COPY scripts/crosstool-ng-build.sh /scripts/
 COPY host-x86_64/dist-powerpc64le-linux-gnu/powerpc64le-unknown-linux-gnu.defconfig /tmp/crosstool.defconfig
 RUN /scripts/crosstool-ng-build.sh
 
-WORKDIR /build
-
-RUN apt-get install -y --no-install-recommends rpm2cpio cpio
-COPY scripts/shared.sh scripts/build-powerpc64le-toolchain.sh /build/
-RUN ./build-powerpc64le-toolchain.sh
-
 COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh
 
+ENV PATH=$PATH:/x-tools/powerpc64le-unknown-linux-gnu/bin
+
 ENV \
-    AR_powerpc64le_unknown_linux_gnu=powerpc64le-linux-gnu-ar \
-    CC_powerpc64le_unknown_linux_gnu=powerpc64le-linux-gnu-gcc \
-    CXX_powerpc64le_unknown_linux_gnu=powerpc64le-linux-gnu-g++
+    AR_powerpc64le_unknown_linux_gnu=powerpc64le-unknown-linux-gnu-ar \
+    CC_powerpc64le_unknown_linux_gnu=powerpc64le-unknown-linux-gnu-gcc \
+    CXX_powerpc64le_unknown_linux_gnu=powerpc64le-unknown-linux-gnu-g++
 
 ENV HOSTS=powerpc64le-unknown-linux-gnu
 

src/ci/docker/host-x86_64/dist-powerpc64le-linux-gnu/powerpc64le-unknown-linux-gnu.defconfig

@@ -9,6 +9,7 @@ CT_ARCH_64=y
 # CT_DEMULTILIB is not set
 CT_ARCH_ARCH="powerpc64le"
 CT_KERNEL_LINUX=y
-CT_LINUX_V_4_19=y
+CT_LINUX_V_3_10=y
+CT_GLIBC_V_2_17=y
 CT_CC_LANG_CXX=y
 CT_GETTEXT_NEEDED=y

src/ci/docker/host-x86_64/dist-powerpc64le-linux-musl/Dockerfile

@@ -15,12 +15,6 @@ COPY scripts/crosstool-ng-build.sh /scripts/
 COPY host-x86_64/dist-powerpc64le-linux-musl/powerpc64le-unknown-linux-musl.defconfig /tmp/crosstool.defconfig
 RUN /scripts/crosstool-ng-build.sh
 
-WORKDIR /build
-
-RUN apt-get install -y --no-install-recommends rpm2cpio cpio
-COPY scripts/shared.sh scripts/build-powerpc64le-toolchain.sh /build/
-RUN ./build-powerpc64le-toolchain.sh
-
 COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh