CI: Add bring-up Linux kernel automation script

Also, adding macOS environment to embrace more working environments.

Author: ChinYikMing

.ci/boot-linux.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+function cleanup {
+    sleep 1
+    pkill -9 rv32emu
+}
+
+function ASSERT {
+    $*
+    local RES=$?
+    if [ $RES -ne 0 ]; then
+        echo 'Assert failed: "' $* '"'
+        exit $RES
+    fi
+}
+
+cleanup
+
+TIMEOUT=50
+EXE='build/rv32emu -k ./build/linux-image/Image -i ./build/linux-image/rootfs.cpio -b build/minimal.dtb'
+
+ASSERT expect <<DONE
+set timeout ${TIMEOUT}
+spawn ${EXE}
+expect "buildroot login:" { send "root\n" } timeout { exit 1 }
+expect "# " { send "uname -a\n" } timeout { exit 2 }
+expect "riscv32 GNU/Linux" { send "\x01"; send "x" } timeout { exit 3 }
+DONE
+
+ret=$?
+cleanup
+
+MESSAGES=("OK!" \
+     "Fail to boot" \
+     "Fail to login" \
+     "Fail to run commands" \
+)
+
+COLOR_G='\e[32;01m' # Green
+COLOR_N='\e[0m' # No color
+printf "\n[ ${COLOR_G}${MESSAGES[$ret]}${COLOR_N} ]\n"
+
+exit ${ret}

.github/workflows/main.yml

@@ -42,7 +42,7 @@ jobs:
     - name: install-dependencies
       run: |
             sudo apt-get update -q -y
-            sudo apt-get install -q -y libsdl2-dev libsdl2-mixer-dev
+            sudo apt-get install -q -y libsdl2-dev libsdl2-mixer-dev device-tree-compiler expect
             .ci/riscv-toolchain-install.sh
             echo "${{ github.workspace }}/toolchain/bin" >> $GITHUB_PATH
             wget https://apt.llvm.org/llvm.sh
@@ -85,6 +85,11 @@ jobs:
       run: |
             make clean && make ENABLE_UBSAN=1 check -j$(nproc)
             make ENABLE_JIT=1 clean && make ENABLE_JIT=1 ENABLE_UBSAN=1 check -j$(nproc)
+    - name: boot Linux kernel test
+      run: |
+            make clean && make ENABLE_SYSTEM=1 && make ENABLE_SYSTEM=1 artifact -j$(nproc)
+            .ci/boot-linux.sh
+            make ENABLE_SYSTEM=1 clean
 
   host-arm64:
     needs: [detect-code-related-file-changes]
@@ -120,6 +125,20 @@ jobs:
           make ENABLE_JIT=1 clean && make ENABLE_EXT_F=0 ENABLE_JIT=1 check -j$(nproc)
           make ENABLE_JIT=1 clean && make ENABLE_EXT_C=0 ENABLE_JIT=1 check -j$(nproc)
 
+  # Currently, this environment only for system emulation testing
+  macOS:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: install-dependencies
+      run: |
+            brew install make dtc expect
+    - name: boot Linux kernel test
+      run: |
+            make clean && make ENABLE_SYSTEM=1 && make ENABLE_SYSTEM=1 artifact -j$(nproc)
+            .ci/boot-linux.sh
+            make ENABLE_SYSTEM=1 clean
+
   coding-style:
     needs: [detect-code-related-file-changes]
     if: needs.detect-code-related-file-changes.outputs.has_code_related_changes == 'true'