Add build workflow

.github/workflows/build.yml

@@ -0,0 +1,44 @@
+name: Build
+
+on:
+  push:
+    paths:
+      - '*.c'
+      - '*.h'
+      - 'Android.mk'
+      - '.github/workflows/build.yml'
+  workflow_dispatch:
+    inputs:
+      abi:
+        type: string
+        description: ABI
+        default: armeabi-v7a
+        required: true
+      platform:
+        type: string
+        description: PLATFORM
+        default: "19"
+        required: true
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Compile
+        run: |
+          if [ ${{ github.event_name }} != "push" ]; then
+            $ANDROID_HOME/ndk/24.0.8215888/ndk-build NDK_PROJECT_PATH=. APP_BUILD_SCRIPT=./Android.mk APP_ABI=${{ inputs.abi }} APP_PLATFORM=android-${{ inputs.platform }}
+          else
+            $ANDROID_HOME/ndk/24.0.8215888/ndk-build NDK_PROJECT_PATH=. APP_BUILD_SCRIPT=./Android.mk APP_ABI=armeabi-v7a APP_PLATFORM=android-19
+          fi
+
+      - name: Uplaod
+        uses: actions/upload-artifact@v4
+        with:
+          name: CVE-2016-5195(dirtycow)
+          path: libs/${{ inputs.abi }}/*

.gitignore

@@ -1,28 +1,3 @@
-# files for diffutils
-*.orig
-*.rej
-
-# built application files
-*.apk
-*.ap_
-
-# files for the dex VM
-*.dex
-
-# Java class files
-*.class
-
 # generated files
-bin/
-gen/
 libs/
 obj/
-
-# Local configuration file (sdk path, etc)
-local.properties
-build.prop
-build.prop.bak
-
-# Eclipse project files
-.classpath
-.project