feat(build): add x86_64 and x86 ABI support (#13)

Enables installation on Waydroid and Android emulators by
cross-compiling for all four Android ABIs: arm64-v8a, armeabi-v7a,
x86_64, and x86.

Author: Enginex0

.github/workflows/build.yml

@@ -25,11 +25,17 @@ jobs:
         target:
           - aarch64-linux-android
           - armv7-linux-androideabi
+          - x86_64-linux-android
+          - i686-linux-android
         include:
           - target: aarch64-linux-android
             abi: arm64-v8a
           - target: armv7-linux-androideabi
             abi: armeabi-v7a
+          - target: x86_64-linux-android
+            abi: x86_64
+          - target: i686-linux-android
+            abi: x86
 
     steps:
       - uses: actions/checkout@v4
@@ -61,8 +67,12 @@ jobs:
           export PATH="${NDK_BIN}:${PATH}"
           export CC_aarch64_linux_android="${NDK_BIN}/aarch64-linux-android26-clang"
           export CC_armv7_linux_androideabi="${NDK_BIN}/armv7a-linux-androideabi26-clang"
+          export CC_x86_64_linux_android="${NDK_BIN}/x86_64-linux-android26-clang"
+          export CC_i686_linux_android="${NDK_BIN}/i686-linux-android26-clang"
           export AR_aarch64_linux_android="${NDK_BIN}/llvm-ar"
           export AR_armv7_linux_androideabi="${NDK_BIN}/llvm-ar"
+          export AR_x86_64_linux_android="${NDK_BIN}/llvm-ar"
+          export AR_i686_linux_android="${NDK_BIN}/llvm-ar"
 
           FLAGS=""
           if [ "$PROFILE" = "release" ]; then
@@ -120,9 +130,8 @@ jobs:
 
       - name: Place release binaries
         run: |
-          for pair in "arm64-v8a:aarch64-linux-android" "armeabi-v7a:armv7-linux-androideabi"; do
+          for pair in "arm64-v8a:aarch64-linux-android" "armeabi-v7a:armv7-linux-androideabi" "x86_64:x86_64-linux-android" "x86:i686-linux-android"; do
             abi="${pair%%:*}"
-            target="${pair##*:}"
             src="artifacts/bin-${abi}-release/ta-enhanced"
             dst="bin/${abi}/ta-enhanced"
             mkdir -p "bin/${abi}"
@@ -144,7 +153,7 @@ jobs:
           MODULE_ID=$(grep '^id=' module.prop | cut -d= -f2)
           VER="${{ steps.ver.outputs.version }}"
 
-          for pair in "arm64-v8a:aarch64-linux-android" "armeabi-v7a:armv7-linux-androideabi"; do
+          for pair in "arm64-v8a:aarch64-linux-android" "armeabi-v7a:armv7-linux-androideabi" "x86_64:x86_64-linux-android" "x86:i686-linux-android"; do
             abi="${pair%%:*}"
             src="artifacts/bin-${abi}-debug/ta-enhanced"
             dst="bin/${abi}/ta-enhanced"

customize.sh

@@ -50,7 +50,7 @@ fi
 
 ABI=$(getprop ro.product.cpu.abi)
 case "$ABI" in
-    arm64-v8a|armeabi-v7a) ;;
+    arm64-v8a|armeabi-v7a|x86_64|x86) ;;
     *) abort "  ❌ Unsupported ABI: $ABI" ;;
 esac
 BIN="$MODPATH/bin/$ABI/ta-enhanced"

package.sh

@@ -108,15 +108,12 @@ for f in "${REQUIRED_FILES[@]}"; do
     fi
 done
 
-if [ ! -f "$REPO_DIR/bin/arm64-v8a/ta-enhanced" ]; then
-    echo "FATAL: bin/arm64-v8a/ta-enhanced not found. Run without --no-build or build manually." >&2
-    exit 1
-fi
-
-if [ ! -f "$REPO_DIR/bin/armeabi-v7a/ta-enhanced" ]; then
-    echo "FATAL: bin/armeabi-v7a/ta-enhanced not found. Run without --no-build or build manually." >&2
-    exit 1
-fi
+for abi in arm64-v8a armeabi-v7a x86_64 x86; do
+    if [ ! -f "$REPO_DIR/bin/${abi}/ta-enhanced" ]; then
+        echo "FATAL: bin/${abi}/ta-enhanced not found. Run without --no-build or build manually." >&2
+        exit 1
+    fi
+done
 
 if [ ! -f "$REPO_DIR/webui/index.html" ]; then
     echo "FATAL: webui/index.html missing" >&2

rust/build.sh

@@ -10,6 +10,8 @@ BIN_DIR="$PROJECT_ROOT/bin"
 declare -A ABI_TARGET=(
     [arm64-v8a]=aarch64-linux-android
     [armeabi-v7a]=armv7-linux-androideabi
+    [x86_64]=x86_64-linux-android
+    [x86]=i686-linux-android
 )
 
 find_ndk() {
@@ -83,8 +85,12 @@ echo "NDK: $NDK_HOME"
 # cc-rs env vars so ring/other C deps find the right compiler
 export CC_aarch64_linux_android="$NDK_BIN/aarch64-linux-android26-clang"
 export CC_armv7_linux_androideabi="$NDK_BIN/armv7a-linux-androideabi26-clang"
+export CC_x86_64_linux_android="$NDK_BIN/x86_64-linux-android26-clang"
+export CC_i686_linux_android="$NDK_BIN/i686-linux-android26-clang"
 export AR_aarch64_linux_android="$NDK_BIN/llvm-ar"
 export AR_armv7_linux_androideabi="$NDK_BIN/llvm-ar"
+export AR_x86_64_linux_android="$NDK_BIN/llvm-ar"
+export AR_i686_linux_android="$NDK_BIN/llvm-ar"
 
 if ! command -v cargo >/dev/null 2>&1; then
     echo "FATAL: cargo not found. Install Rust toolchain." >&2