Checks Android APK/AAB .so files for the 16KB page-size requirement; reports native libs whose LOAD align ≠ 2**14.

android-16kb-check.sh

#!/usr/bin/env bash
set -e

OBJDUMP="$(ls -d "$ANDROID_HOME"/ndk/*/toolchains/llvm/prebuilt/*/bin/llvm-objdump 2>/dev/null | tail -n1)"
if [ -z "$OBJDUMP" ]; then
  echo "OBJDUMP not found. llvm-objdump is missing under ANDROID_HOME/ndk."; exit 1
fi

APK="$(ls -t app/build/outputs/apk/debug/*.apk 2>/dev/null | head -n1)"
[ -z "$APK" ] && APK="$(ls -t app/build/outputs/apk/release/*.apk 2>/dev/null | head -n1)"
if [ -z "$APK" ]; then
  echo "APK not found. Run first: ./gradlew assembleDebug"; exit 1
fi
echo "Using APK: $APK"

TMPDIR="$(mktemp -d)"
unzip -qq "$APK" "lib/*/*.so" -d "$TMPDIR" || true

check_one () {
  local name="$1"
  local ok=true

  for abi in arm64-v8a x86_64; do
    local so="$TMPDIR/lib/$abi/$name"
    if [ -f "$so" ]; then
      local aligns
      aligns="$("$OBJDUMP" -p "$so" 2>/dev/null | awk '/LOAD/{print}' | awk '{for(i=1;i<=NF;i++) if($i=="align") print $(i+1)}')"
      if [ -z "$aligns" ]; then
        echo "[$abi] $name  →  LOAD header not working (!?)"
        ok=false
      else
        while read -r a; do
          if [ "$a" != "2**14" ]; then
            echo "FAIL  [$abi] $name  →  LOAD align=$a (expected 2**14)"
            ok=false
          fi
        done <<< "$aligns"
        if $ok; then
          echo "PASS  [$abi] $name  →  LOAD align=2**14"
        fi
      fi
    fi
  done
}

for so in \
  libimage_processing_util_jni.so \
  libcamerakit_jni.so \
  libglide-webp.so \
  libavif_android.so \
  libbarhopper_v3.so \
  libreanimated.so \
  libreactnative.so \
  libc++_shared.so \
  libimagepipeline.so \
  libnative-imagetranscoder.so \
  libworklets.so \
; do
  if ! ls "$TMPDIR"/lib/*/"$so" >/dev/null 2>&1; then
    echo "Missing: $so"
    continue
  fi
  check_one "$so"
done

echo "End."