ci: add support for loongarch64-unknown-linux-gnu (#258)

Author: heiher

.github/workflows/main.yml

@@ -56,6 +56,9 @@ jobs:
         - target: riscv64gc-unknown-linux-gnu
           rust: stable
           os: ubuntu-latest
+        - target: loongarch64-unknown-linux-gnu
+          rust: stable
+          os: ubuntu-latest
         - target: x86_64-unknown-linux-musl
           rust: stable
           os: ubuntu-latest

ci/docker/loongarch64-unknown-linux-gnu/Dockerfile

@@ -0,0 +1,13 @@
+FROM ubuntu:24.04
+
+RUN apt-get update -y && apt-get install -y --no-install-recommends \
+  ca-certificates \
+  make \
+  perl \
+  gcc \
+  libc6-dev \
+  gcc-14-loongarch64-linux-gnu \
+  libc6-dev-loong64-cross
+ENV CC_loongarch64_unknown_linux_gnu=loongarch64-linux-gnu-gcc-14 \
+  CARGO_TARGET_LOONGARCH64_UNKNOWN_LINUX_GNU_RUNNER=echo \
+  CARGO_TARGET_LOONGARCH64_UNKNOWN_LINUX_GNU_LINKER=loongarch64-linux-gnu-gcc-14