build: Sync code with v25 branch

.github/workflows/build.yml

@@ -217,6 +217,16 @@ jobs:
           ./xupdate.sh -f
           mkdir -p logs
           echo "status=success" >> $GITHUB_OUTPUT
+          rm -rf staging_dir/
+          mkdir -p staging_dir/host
+
+      - name: Restore cache for host tools
+        id: tools_cache_restore
+        uses: actions/cache/restore@v4
+        with:
+          key: host-tools-${{ runner.os }}-${{ env.FW_VER }}-${{ hashFiles('tools/**') }}
+          path: |
+            staging_dir/host
 
       - name: Configure
         id: configure
@@ -256,33 +266,17 @@ jobs:
           cat .config
           echo "========================"
 
-      - name: Prepare for use cache of tools and toolchain
-        run: |
-          echo "G_TARGET_ARCH = $G_TARGET_ARCH"
-          rm -rf staging_dir/
-          rm -rf build_dir/
-
-      - name: Cache host tools
-        uses: actions/cache@v4
-        with:
-          path: staging_dir/host
-          key: host-tools-${{ runner.os }}-${{ hashFiles('tools/**') }}
-          restore-keys: |
-            host-tools-${{ runner.os }}-
-
-      - name: Cache toolchain
-        uses: actions/cache@v4
-        with:
-          path: staging_dir/toolchain-*
-          key: toolchain-${{ env.G_TARGET_ARCH }}-${{ hashFiles('toolchain/**') }}
-          restore-keys: |
-            toolchain-${{ env.G_TARGET_ARCH }}-
-
       - name: Monitor memory
         run: |
-          free -h
-          cat /proc/meminfo
-    
+          echo "CPU cores = $(nproc)"
+          echo "Memory and swap:"
+          sudo free -h
+          echo
+          sudo swapon --show
+          echo
+          echo "Available storage:"
+          sudo df -h
+
       - name: Build tools and toolchain
         id: tools
         if: ${{ steps.configure.outputs.status == 'success' && github.event.inputs.fake_build != 'true' }}
@@ -291,18 +285,13 @@ jobs:
           echo "status=success" >> $GITHUB_OUTPUT
 
       - name: Save cache for host tools
-        if: ${{ steps.tools.outputs.status == 'success' && github.event.inputs.fake_build != 'true' }}
-        uses: actions/cache@v4
+        id: tools_cache_save
+        if: steps.tools.outputs.status == 'success' && steps.tools_cache_restore.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v4
         with:
-          path: staging_dir/host
-          key: host-tools-${{ runner.os }}-${{ hashFiles('tools/**') }}
-
-      - name: Save cache for toolchain
-        if: ${{ steps.tools.outputs.status == 'success' && github.event.inputs.fake_build != 'true' }}
-        uses: actions/cache@v4
-        with:
-          path: staging_dir/toolchain-*
-          key: toolchain-${{ env.G_TARGET_ARCH }}-${{ hashFiles('toolchain/**') }}
+          key: ${{ steps.tools_cache_restore.outputs.cache-primary-key }}
+          path: |
+            staging_dir/host
 
       - name: Kernel compile
         id: kernel
@@ -313,8 +302,13 @@ jobs:
 
       - name: Monitor memory 2
         run: |
-          free -h
-          cat /proc/meminfo
+          echo "Memory and swap:"
+          sudo free -h
+          echo
+          sudo swapon --show
+          echo
+          echo "Available storage:"
+          sudo df -h
 
       - name: Build the firmware image
         id: compile
@@ -371,6 +365,13 @@ jobs:
       - name: Check space usage
         run: df -hT
 
+      - name: Check OOM error
+        if: failure()
+        run: |
+          dmesg | grep -i -E 'oom|killed process' || true
+          echo "================== Memory ================="
+          free -h
+    
       - name: Compress build logs
         if: always()
         env: