emulator on android: crashes but APKs are building

resources/emulator/build_android.sh

@@ -0,0 +1,46 @@
+#!/bin/sh
+
+export ANDROID_HOME="/mnt/c/Users/jacob/AppData/Local/Android/Sdk"
+export TOOL_PREFIX="$ANDROID_HOME/build-tools/35.0.1"
+
+# Only really works on Linux, for aarch64.
+
+mkdir -p ../target/apk_build/lib/arm64-v8a
+mkdir -p ../target/apk_build/res/values
+mkdir -p ../target/apk_build/res/mipmap-hdpi
+mkdir -p ../target/apk_build/res/mipmap-mdpi
+mkdir -p ../target/apk_build/res/mipmap-xhdpi
+mkdir -p ../target/apk_build/res/mipmap-xxhdpi
+
+# Copy the shared library.
+cp ../target/aarch64-linux-android/release/libdsa_rs.so ../target/apk_build/lib/arm64-v8a/
+
+# Copy the manifest.
+cp AndroidManifest.xml ../target/apk_build/AndroidManifest.xml
+
+cat << EOF > ../target/apk_build/res/values/strings.xml
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">DSA Emulator</string>
+</resources>
+EOF
+
+pushd ../target/apk_build
+
+$TOOL_PREFIX/aapt2 compile --dir res -o compiled_resources.zip
+$TOOL_PREFIX/aapt2 link -o unaligned.apk \
+    -I "$ANDROID_HOME/platforms/android-35/android.jar" \
+    --manifest AndroidManifest.xml \
+    compiled_resources.zip
+
+zip -r unaligned.apk lib/
+
+$TOOL_PREFIX/zipalign -v 4 unaligned.apk aligned.apk
+
+keytool -genkey -v -keystore debug.keystore -alias androiddebugkey -keyalg RSA -keysize 2048 -validity 10000 -storepass android -keypass android -dname "CN=Android Debug,O=Android,C=US"
+
+$TOOL_PREFIX/apksigner sign --ks debug.keystore --ks-key-alias androiddebugkey --ks-pass pass:android --key-pass pass:android --out dsa_emulator.apk aligned.apk
+
+cp dsa_emulator.apk ../dsa_emulator.apk
+
+popd