From 975b4e7664a00bc4c6aeea0008e2dec16365ccbf Mon Sep 17 00:00:00 2001
From: "Sijie.Sun" <sunsijie@buaa.edu.cn>
Date: Fri, 25 Jul 2025 01:53:49 +0800
Subject: [PATCH] support loongarch (#1146)

---
 .cargo/config.toml         |  4 ++++
 .github/workflows/core.yml | 11 ++++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/.cargo/config.toml b/.cargo/config.toml
index 99b3ae2..1ffdf1d 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -68,6 +68,10 @@ rustflags = ["-C", "target-feature=+crt-static"]
 linker = "armv7-unknown-linux-musleabi-gcc"
 rustflags = ["-C", "target-feature=+crt-static"]
 
+[target.loongarch64-unknown-linux-musl]
+linker = "loongarch64-unknown-linux-musl-gcc"
+rustflags = ["-C", "target-feature=+crt-static"]
+
 [target.arm-unknown-linux-musleabihf]
 linker = "arm-unknown-linux-musleabihf-gcc"
 rustflags = [
diff --git a/.github/workflows/core.yml b/.github/workflows/core.yml
index f111f1d..e015624 100644
--- a/.github/workflows/core.yml
+++ b/.github/workflows/core.yml
@@ -102,6 +102,10 @@ jobs:
             OS: ubuntu-22.04
             ARTIFACT_NAME: linux-arm
 
+          - TARGET: loongarch64-unknown-linux-musl
+            OS: ubuntu-24.04
+            ARTIFACT_NAME: linux-loongarch64
+
           - TARGET: x86_64-apple-darwin
             OS: macos-latest
             ARTIFACT_NAME: macos-x86_64
@@ -167,6 +171,11 @@ jobs:
         run: |
           bash ./.github/workflows/install_rust.sh
 
+          # loongarch need llvm-18
+          if [[ $TARGET =~ ^loongarch.*$ ]]; then
+            sudo apt-get install -qq llvm-18 clang-18
+            export LLVM_CONFIG_PATH=/usr/lib/llvm-18/bin/llvm-config
+          fi
           # we set the sysroot when sysroot is a dir
           # this dir is a soft link generated by install_rust.sh
           # kcp-sys need this to gen ffi bindings. without this clang may fail to find some libc headers such as bits/libc-header-start.h
@@ -246,7 +255,7 @@ jobs:
             TAG=$GITHUB_SHA
           fi
 
-          if [[ $OS =~ ^ubuntu.*$ && ! $TARGET =~ ^.*freebsd$ ]]; then
+          if [[ $OS =~ ^ubuntu.*$ && ! $TARGET =~ ^.*freebsd$ && ! $TARGET =~ ^loongarch.*$ ]]; then
             UPX_VERSION=4.2.4
             curl -L https://github.com/upx/upx/releases/download/v${UPX_VERSION}/upx-${UPX_VERSION}-amd64_linux.tar.xz -s | tar xJvf -
             cp upx-${UPX_VERSION}-amd64_linux/upx .