Use latest clang versions from kernel.org

Author: sayantn

ci/docker/aarch64-unknown-linux-gnu/Dockerfile

@@ -10,8 +10,14 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   qemu-user \
   make \
   file \
-  clang \
-  lld
+  xz-utils \
+  wget
+
+RUN wget https://mirrors.edge.kernel.org/pub/tools/llvm/files/llvm-22.1.4-x86_64.tar.gz -O llvm.tar.xz
+RUN mkdir llvm
+RUN tar -xvf llvm.tar.xz --strip-components=1 -C llvm
+
+ENV PATH="/llvm/bin:$PATH"
 
 ENV CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc \
     CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_RUNNER="qemu-aarch64 -cpu max -L /usr/aarch64-linux-gnu" \

ci/docker/aarch64_be-unknown-linux-gnu/Dockerfile

@@ -9,10 +9,9 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   qemu-user \
   make \
   file \
-  clang \
   curl \
   xz-utils \
-  lld
+  wget
 
 ENV TOOLCHAIN="arm-gnu-toolchain-14.3.rel1-x86_64-aarch64_be-none-linux-gnu"
 
@@ -21,6 +20,12 @@ RUN curl -L "https://developer.arm.com/-/media/Files/downloads/gnu/14.3.rel1/bin
 RUN tar -xvf "${TOOLCHAIN}.tar.xz"
 RUN mkdir /toolchains && mv "./${TOOLCHAIN}" /toolchains
 
+RUN wget https://mirrors.edge.kernel.org/pub/tools/llvm/files/llvm-22.1.4-x86_64.tar.gz -O llvm.tar.xz
+RUN mkdir llvm
+RUN tar -xvf llvm.tar.xz --strip-components=1 -C llvm
+
+ENV PATH="/llvm/bin:$PATH"
+
 ENV AARCH64_BE_TOOLCHAIN="/toolchains/${TOOLCHAIN}"
 ENV AARCH64_BE_LIBC="${AARCH64_BE_TOOLCHAIN}/aarch64_be-none-linux-gnu/libc"
 

ci/docker/armv7-unknown-linux-gnueabihf/Dockerfile

@@ -10,8 +10,14 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   qemu-user \
   make \
   file \
-  clang \
-  lld
+  wget
+
+RUN wget https://mirrors.edge.kernel.org/pub/tools/llvm/files/llvm-22.1.4-x86_64.tar.gz -O llvm.tar.xz
+RUN mkdir llvm
+RUN tar -xvf llvm.tar.xz --strip-components=1 -C llvm
+
+ENV PATH="/llvm/bin:$PATH"
+
 ENV CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gnueabihf-gcc \
     CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_RUNNER="qemu-arm -cpu max -L /usr/arm-linux-gnueabihf" \
     OBJDUMP=arm-linux-gnueabihf-objdump

ci/docker/x86_64-unknown-linux-gnu/Dockerfile

@@ -15,6 +15,13 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 RUN wget http://ci-mirrors.rust-lang.org/sde-external-10.8.0-2026-03-15-lin.tar.xz -O sde.tar.xz
 RUN mkdir intel-sde
 RUN tar -xJf sde.tar.xz --strip-components=1 -C intel-sde
+
+RUN wget https://mirrors.edge.kernel.org/pub/tools/llvm/files/llvm-22.1.4-x86_64.tar.gz -O llvm.tar.xz
+RUN mkdir llvm
+RUN tar -xvf llvm.tar.xz --strip-components=1 -C llvm
+
+ENV PATH="/llvm/bin:$PATH"
+
 ENV CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUNNER="/intel-sde/sde64 \
             -cpuid-in /checkout/ci/docker/x86_64-unknown-linux-gnu/cpuid.def \
             -rtm-mode full -tsx --"