ci: Add support for dist-loongarch64-linux

Co-Authored-By: YANG Xiaojuan <yangxiaojuan@loongson.cn>

.github/workflows/ci.yml

@@ -201,6 +201,9 @@ jobs:
           - name: dist-i686-linux
             os: ubuntu-20.04-8core-32gb
             env: {}
+          - name: dist-loongarch64-linux
+            os: ubuntu-20.04-8core-32gb
+            env: {}
           - name: dist-mips-linux
             os: ubuntu-20.04-8core-32gb
             env: {}

src/ci/docker/README.md

@@ -257,6 +257,22 @@ For targets: `i586-unknown-linux-gnu`
 (\*) Compressed debug is enabled by default for gas (assembly) on Linux/x86 targets,
      but that makes our `compiler_builtins` incompatible with binutils < 2.32.
 
+### `loongarch64-linux-gnu.defconfig`
+
+For targets: `loongarch64-unknown-linux-gnu`
+
+- Path and misc options > Prefix directory = /x-tools/${CT\_TARGET}
+- Path and misc options > Use a mirror = ENABLE
+- Path and misc options > Base URL = https://ci-mirrors.rust-lang.org/rustc
+- Target options > Target Architecture = loongarch
+- Target options > Bitness = 64-bit
+- Operating System > Target OS = linux
+- Operating System > Linux kernel version = 5.19.16
+- Binary utilities > Version of binutils = 2.40
+- C-library > glibc version = 2.36
+- C compiler > gcc version = 12.2.0
+- C compiler > C++ = ENABLE -- to cross compile LLVM
+
 ### `mips-linux-gnu.defconfig`
 
 For targets: `mips-unknown-linux-gnu`

src/ci/docker/host-x86_64/dist-loongarch64-linux/Dockerfile

@@ -0,0 +1,30 @@
+FROM ubuntu:22.04
+
+COPY scripts/cross-apt-packages.sh /scripts/
+RUN sh /scripts/cross-apt-packages.sh
+
+# The latest released version does not support LoongArch.
+COPY scripts/crosstool-ng-git.sh /scripts/
+RUN sh /scripts/crosstool-ng-git.sh
+
+COPY scripts/rustbuild-setup.sh /scripts/
+RUN sh /scripts/rustbuild-setup.sh
+WORKDIR /tmp
+
+COPY scripts/crosstool-ng-build.sh /scripts/
+COPY host-x86_64/dist-loongarch64-linux/loongarch64-unknown-linux-gnu.defconfig /tmp/crosstool.defconfig
+RUN /scripts/crosstool-ng-build.sh
+
+COPY scripts/sccache.sh /scripts/
+RUN sh /scripts/sccache.sh
+
+ENV PATH=$PATH:/x-tools/loongarch64-unknown-linux-gnu/bin
+
+ENV CC_loongarch64_unknown_linux_gnu=loongarch64-unknown-linux-gnu-gcc \
+    AR_loongarch64_unknown_linux_gnu=loongarch64-unknown-linux-gnu-ar \
+    CXX_loongarch64_unknown_linux_gnu=loongarch64-unknown-linux-gnu-g++
+
+ENV HOSTS=loongarch64-unknown-linux-gnu
+
+ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs
+ENV SCRIPT python3 ../x.py dist --host $HOSTS --target $HOSTS

src/ci/docker/host-x86_64/dist-loongarch64-linux/loongarch64-unknown-linux-gnu.defconfig

@@ -0,0 +1,14 @@
+CT_CONFIG_VERSION="4"
+CT_EXPERIMENTAL=y
+CT_PREFIX_DIR="/x-tools/${CT_TARGET}"
+CT_USE_MIRROR=y
+CT_MIRROR_BASE_URL="https://ci-mirrors.rust-lang.org/rustc"
+CT_ARCH_LOONGARCH=y
+# CT_DEMULTILIB is not set
+CT_ARCH_USE_MMU=y
+CT_ARCH_ARCH="loongarch64"
+CT_KERNEL_LINUX=y
+CT_LINUX_V_5_19=y
+CT_GLIBC_V_2_36=y
+CT_CC_GCC_ENABLE_DEFAULT_PIE=y
+CT_CC_LANG_CXX=y

src/ci/docker/scripts/cross-apt-packages.sh

@@ -22,6 +22,7 @@ apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install
   patch \
   pkg-config \
   python3 \
+  rsync \
   sudo \
   texinfo \
   unzip \

src/ci/docker/scripts/crosstool-ng-git.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+set -ex
+
+URL=https://github.com/crosstool-ng/crosstool-ng
+REV=943364711a650d9b9e84c1b42c91cc0265b6ab5c
+
+mkdir crosstool-ng
+cd crosstool-ng
+git init
+git fetch --depth=1 ${URL} ${REV}
+git reset --hard FETCH_HEAD
+./bootstrap
+./configure --prefix=/usr/local
+make -j$(nproc)
+make install
+cd ..
+rm -rf crosstool-ng

src/ci/github-actions/ci.yml

@@ -359,6 +359,9 @@ jobs:
           - name: dist-i686-linux
             <<: *job-linux-8c
 
+          - name: dist-loongarch64-linux
+            <<: *job-linux-8c
+
           - name: dist-mips-linux
             <<: *job-linux-8c