Add s390x arch support (#2172)

.github/workflows/release.yml

@@ -17,6 +17,7 @@ jobs:
           - armv6
           - 386
           - armv5
+          - s390x
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout repository
@@ -40,6 +41,8 @@ jobs:
             sudo apt install gcc-i686-linux-gnu
           elif [ "${{ matrix.platform }}" == "armv5" ]; then
             sudo apt install gcc-arm-linux-gnueabi
+          elif [ "${{ matrix.platform }}" == "s390x" ]; then
+            sudo apt install gcc-s390x-linux-gnu
           fi
 
       - name: Build x-ui
@@ -65,6 +68,9 @@ jobs:
             export GOARCH=arm
             export GOARM=5
             export CC=arm-linux-gnueabi-gcc
+          elif [ "${{ matrix.platform }}" == "s390x" ]; then
+            export GOARCH=s390x
+            export CC=s390x-linux-gnu-gcc
           fi
           go build -o xui-release -v main.go
           
@@ -102,6 +108,10 @@ jobs:
             wget ${Xray_URL}Xray-linux-arm32-v5.zip
             unzip Xray-linux-arm32-v5.zip
             rm -f Xray-linux-arm32-v5.zip
+          elif [ "${{ matrix.platform }}" == "s390x" ]; then
+            wget ${Xray_URL}Xray-linux-s390x.zip
+            unzip Xray-linux-s390x.zip
+            rm -f Xray-linux-s390x.zip
           fi
           rm -f geoip.dat geosite.dat
           wget https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geoip.dat