From b50ea0523ca9cbe6e2f05917433524ec15023dfb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= <berykubik@gmail.com>
Date: Fri, 17 May 2024 14:14:07 +0200
Subject: [PATCH] WIP

---
 src/ci/docker/host-x86_64/rfl/Dockerfile | 50 ++++++++++++++++++++++++
 src/ci/docker/scripts/rfl-build.sh       | 50 ++++++++++++++++++++++++
 src/ci/github-actions/jobs.yml           | 24 ++++++------
 3 files changed, 113 insertions(+), 11 deletions(-)
 create mode 100644 src/ci/docker/host-x86_64/rfl/Dockerfile
 create mode 100755 src/ci/docker/scripts/rfl-build.sh

diff --git a/src/ci/docker/host-x86_64/rfl/Dockerfile b/src/ci/docker/host-x86_64/rfl/Dockerfile
new file mode 100644
index 0000000000000..4d70a4e85c586
--- /dev/null
+++ b/src/ci/docker/host-x86_64/rfl/Dockerfile
@@ -0,0 +1,50 @@
+FROM ubuntu:23.10
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+  g++ \
+  gcc-multilib \
+  make \
+  ninja-build \
+  file \
+  curl \
+  ca-certificates \
+  python3 \
+  git \
+  cmake \
+  sudo \
+  gdb \
+  flex \
+  bison \
+  bc \
+  llvm-17-tools \
+  llvm-17-dev \
+  libedit-dev \
+  libssl-dev \
+  pkg-config \
+  zlib1g-dev \
+  xz-utils \
+  && rm -rf /var/lib/apt/lists/*
+
+COPY scripts/sccache.sh /scripts/
+RUN sh /scripts/sccache.sh
+
+# We are disabling CI LLVM since this builder is intentionally using a host
+# LLVM, rather than the typical src/llvm-project LLVM.
+ENV NO_DOWNLOAD_CI_LLVM 1
+ENV EXTERNAL_LLVM 1
+
+# This is not the latest LLVM version, so some components required by tests may
+# be missing.
+ENV IS_NOT_LATEST_LLVM 1
+
+# Using llvm-link-shared due to libffi issues -- see #34486
+ENV RUST_CONFIGURE_ARGS \
+      --build=x86_64-unknown-linux-gnu \
+      --llvm-root=/usr/lib/llvm-17 \
+      --enable-llvm-link-shared \
+      --set rust.thin-lto-import-instr-limit=10
+
+COPY /scripts/rfl-build.sh /tmp/rfl-build.sh
+ENV SCRIPT bash /tmp/rfl-build.sh
diff --git a/src/ci/docker/scripts/rfl-build.sh b/src/ci/docker/scripts/rfl-build.sh
new file mode 100755
index 0000000000000..41c43aaea7da9
--- /dev/null
+++ b/src/ci/docker/scripts/rfl-build.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+
+set -euo pipefail
+
+LINUX_VERSION=v6.9
+
+# Build rustc
+../x.py --stage 1 build library/std
+BUILT_RUSTC=$(realpath ./build/x86_64-unknown-linux-gnu/stage1/bin/rustc)
+
+# Install rustup so that we have cargo for installing bindgen
+curl --proto '=https' --tlsv1.2 -sSf -o rustup.sh https://sh.rustup.rs
+sh rustup.sh -y --default-toolchain stable --profile minimal
+
+mkdir -p rfl
+cd rfl
+
+# Download Linux
+git clone --depth 1 --branch ${LINUX_VERSION} https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
+
+# Install bindgen
+/cargo/bin/cargo install --locked --version $(linux/scripts/min-tool-version.sh bindgen) bindgen-cli
+
+# Configure Linux
+cat <<EOF > linux/kernel/configs/rfl-for-rust-ci.config
+# CONFIG_RETHUNK is not set
+# CONFIG_X86_KERNEL_IBT is not set
+# CONFIG_GCC_PLUGINS is not set
+
+CONFIG_RUST=y
+
+CONFIG_SAMPLES=y
+CONFIG_SAMPLES_RUST=y
+
+CONFIG_SAMPLE_RUST_MINIMAL=m
+CONFIG_SAMPLE_RUST_PRINT=y
+
+CONFIG_RUST_PHYLIB_ABSTRACTIONS=y
+CONFIG_AX88796B_PHY=y
+CONFIG_AX88796B_RUST_PHY=y
+
+CONFIG_KUNIT=y
+CONFIG_RUST_KERNEL_DOCTESTS=y
+EOF
+
+export RUSTC=${BUILT_RUSTC}
+${RUSTC} -v
+
+make -C linux LLVM=1 -j$(($(nproc) + 1)) rustavailable defconfig rfl-for-rust-ci.config
+make -C linux LLVM=1 -j$(($(nproc) + 1)) samples/rust/rust_minimal.o samples/rust/rust_print.o drivers/net/phy/ax88796b_rust.o
diff --git a/src/ci/github-actions/jobs.yml b/src/ci/github-actions/jobs.yml
index 04888dc09b50d..063a8d3990ef5 100644
--- a/src/ci/github-actions/jobs.yml
+++ b/src/ci/github-actions/jobs.yml
@@ -75,17 +75,19 @@ envs:
 # These jobs automatically inherit envs.pr, to avoid repeating
 # it in each job definition.
 pr:
-  - image: mingw-check
-    <<: *job-linux-4c
-  - image: mingw-check-tidy
-    continue_on_error: true
-    <<: *job-linux-4c
-  - image: x86_64-gnu-llvm-17
-    env:
-      ENABLE_GCC_CODEGEN: "1"
-    <<: *job-linux-16c
-  - image: x86_64-gnu-tools
-    <<: *job-linux-16c
+  #  - image: mingw-check
+  #    <<: *job-linux-4c
+  #  - image: mingw-check-tidy
+  #    continue_on_error: true
+  #    <<: *job-linux-4c
+  #  - image: x86_64-gnu-llvm-17
+  #    env:
+  #      ENABLE_GCC_CODEGEN: "1"
+  #    <<: *job-linux-16c
+  #  - image: x86_64-gnu-tools
+  #    <<: *job-linux-16c
+  - image: rfl
+    <<: *job-linux-8c
 
 # Jobs that run when you perform a try build (@bors try)
 # These jobs automatically inherit envs.try, to avoid repeating