config: add rust build configurations

config/core/build-configs.yaml

@@ -109,6 +109,9 @@ trees:
   rt-stable:
     url: "https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git"
 
+  rust-for-linux:
+    url: "https://github.com/Rust-for-Linux/linux.git"
+
   samsung:
     url: "https://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git"
 
@@ -228,6 +231,42 @@ fragments:
       - 'CONFIG_PREEMPT_RT=y'
       - 'CONFIG_PREEMPT_RT_FULL=y' # <= v4.19
 
+  rust:
+    path: "kernel/configs/rust.config"
+    configs:
+      - 'CONFIG_RUST=y'
+
+  rust-for-linux-samples:
+    path: "kernel/configs/rust-for-linux-samples.config"
+    configs:
+      - 'CONFIG_SAMPLES=y'
+      - 'CONFIG_SAMPLES_RUST=y'
+      - 'CONFIG_SAMPLE_RUST_MINIMAL=m'
+      - 'CONFIG_SAMPLE_RUST_HOSTPROGS=m'
+      - 'CONFIG_SAMPLE_RUST_PRINT=m'
+      - 'CONFIG_SAMPLE_RUST_MODULE_PARAMETERS=m'
+      - 'CONFIG_SAMPLE_RUST_SYNC=m'
+      - 'CONFIG_SAMPLE_RUST_CHRDEV=m'
+      - 'CONFIG_SAMPLE_RUST_MISCDEV=m'
+      - 'CONFIG_SAMPLE_RUST_STACK_PROBING=m'
+      - 'CONFIG_SAMPLE_RUST_SEMAPHORE=m'
+      - 'CONFIG_SAMPLE_RUST_SEMAPHORE_C=m'
+      - 'CONFIG_SAMPLE_RUST_RANDOM=m'
+      - 'CONFIG_SAMPLE_RUST_PLATFORM=m'
+      - 'CONFIG_SAMPLE_RUST_FS=m'
+      - 'CONFIG_SAMPLE_RUST_NETFILTER=m'
+      - 'CONFIG_SAMPLE_RUST_ECHO_SERVER=m'
+      - 'CONFIG_SAMPLE_RUST_HOSTPROGS=m'
+      - 'CONFIG_SAMPLE_RUST_SELFTESTS=m'
+
+  rust-samples:
+    path: "kernel/configs/rust-samples.config"
+    configs:
+      - 'CONFIG_SAMPLES=y'
+      - 'CONFIG_SAMPLES_RUST=y'
+      - 'CONFIG_SAMPLE_RUST_HOSTPROGS=y'
+      - 'CONFIG_SAMPLE_RUST_MINIMAL=m'
+
   tinyconfig:
     path: "kernel/configs/tiny.config"
     defconfig: 'tinyconfig'
@@ -396,6 +435,14 @@ build_environments:
     arch_params:
       <<: *clang_15_arch_params
 
+  rustc-1.62:
+    cc: clang
+    cc_version: 15
+    arch_params:
+      x86_64:
+        <<: *x86_64_params
+        name:
+
 # Default config with full build coverage
 build_configs_defaults:
   variants:
@@ -960,6 +1007,26 @@ build_configs:
     branch: 'v5.15-rt'
     variants: *preempt_rt_variants
 
+  rust:
+    tree: mainline
+    branch: 'master'
+    variants:
+      rustc-1.62:
+        build_environment: rustc-1.62
+        fragments: [rust, rust-samples, kselftest]
+        architectures:
+          x86_64: *x86_64_arch
+
+  rust-for-linux:
+    tree: rust-for-linux
+    branch: 'rust'
+    variants:
+      rustc-1.62:
+        build_environment: rustc-1.62
+        fragments: [rust, rust-for-linux-samples, kselftest]
+        architectures:
+          x86_64: *x86_64_arch
+
   samsung:
     tree: samsung
     branch: 'for-next'

config/docker/rustc-1.62.jinja2

@@ -0,0 +1,39 @@
+{% extends 'clang-15.jinja2' %}
+
+{% block packages %}
+{{ super() }}
+
+ARG RUST_VER=1.62.0
+ARG BINDGEN_VER=0.56.0
+
+ARG RUST_TRIPLE=rust-${RUST_VER}-x86_64-unknown-linux-gnu
+
+ENV CARGO_HOME=/home/kernelci/.cargo
+ENV PATH=/usr/${RUST_TRIPLE}/bin:${CARGO_HOME}/bin:${PATH}
+
+ARG SHA256SUM=4172d3cb316498025410bdf33a4d0f756f5e77fbaee1fb042ccdef78239be1db
+
+# fetch, verify the toolchain
+RUN wget https://static.rust-lang.org/dist/${RUST_TRIPLE}.tar.gz && \
+    echo "${SHA256SUM} ${RUST_TRIPLE}.tar.gz" | sha256sum --check --quiet
+
+# install & cleanup tmp files
+RUN tar -xf ${RUST_TRIPLE}.tar.gz  -C /tmp/ && \
+    /tmp/${RUST_TRIPLE}/install.sh --prefix=/usr/${RUST_TRIPLE} \
+        --components=rustc,cargo,rust-std-x86_64-unknown-linux-gnu && \
+    rm -rf /tmp/${RUST_TRIPLE} && \
+    rm /${RUST_TRIPLE}*
+
+# This image is based on clang-*jinja2 which only has clang installed but rustc
+# defaults to linker "cc" which calls the non-existing GNU stack (gcc, libgcc).
+# So we point cargo/rustc to use the LLVM stack via the clang linker entrypoint.
+RUN mkdir -p ${CARGO_HOME} && \
+    printf '[build]\nrustflags = ["-C", "linker=clang"]' > ${CARGO_HOME}/config.toml
+
+RUN git clone --recurse-submodules --branch $RUST_VER \
+        https://github.com/rust-lang/rust \
+        $(rustc --print sysroot)/lib/rustlib/src/rust
+
+RUN cargo install --locked --version ${BINDGEN_VER} bindgen
+
+{%- endblock %}