Files
RMHook-Android/script/build.sh
2026-08-25 23:04:23 +02:00

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#!/bin/bash
# Script to compile the native hooking library for Android
set -euo pipefail
PROJECT_DIR=$(cd "$(dirname "$0")/.." && pwd)
SRC_DIR="$PROJECT_DIR/src"
BUILD_DIR="$PROJECT_DIR/build"
LIBS_DIR="$PROJECT_DIR/libs"
API_LEVEL="${ANDROID_API_LEVEL:-21}"
# Qt path detection
QT_DIR="${QT_DIR:-$HOME/Qt}"
QT_VERSION="${QT_VERSION:-6.10.2}"
QT_HOST_DIR="$QT_DIR/$QT_VERSION/android_arm64_v8a"
QT_LIB_DIR="$QT_HOST_DIR/lib"
SO_NAME="librmhook.so"
# --- Auto-detect Android NDK ---
find_ndk() {
if [ -n "${ANDROID_NDK_HOME:-}" ] && [ -d "$ANDROID_NDK_HOME" ]; then
echo "$ANDROID_NDK_HOME"; return
fi
local brew_ndk
brew_ndk=$(find /opt/homebrew /usr/local -path "*/android-ndk/*/toolchains/llvm/prebuilt" -type d 2>/dev/null | head -1)
if [ -n "$brew_ndk" ]; then
echo "$(dirname "$(dirname "$(dirname "$brew_ndk")")")"; return
fi
local sdk_ndk
sdk_ndk=$(find "$HOME/Library/Android/sdk/ndk" -maxdepth 1 -type d 2>/dev/null | sort -V | tail -1)
if [ -n "$sdk_ndk" ] && [ -d "$sdk_ndk" ]; then
echo "$sdk_ndk"; return
fi
for p in /opt/android-ndk /usr/local/android-ndk "$HOME/android-ndk"; do
if [ -d "$p" ]; then echo "$p"; return; fi
done
echo ""
}
NDK_HOME="$(find_ndk)"
CC=""
if [ -n "$NDK_HOME" ]; then
CC=$(find "$NDK_HOME/toolchains/llvm/prebuilt" -type f \
-name "aarch64-linux-android${API_LEVEL}-clang" -print -quit 2>/dev/null)
fi
if [ -z "$CC" ]; then
echo "❌ aarch64-linux-android clang not found."
echo " Set ANDROID_NDK_HOME to your NDK path, or install via:"
echo " brew install --cask android-ndk"
exit 1
fi
echo "🔨 Compiling $SO_NAME..."
echo "📦 Qt path: $QT_HOST_DIR"
echo "📦 NDK: $NDK_HOME"
echo ""
# Clean and create build directories
rm -rf "$BUILD_DIR"
mkdir -p "$BUILD_DIR"
# --- Step 0: Build dependencies (shadowhook) ---
echo "[0/2] Building hooking library (shadowhook)..."
"$LIBS_DIR/build_deps.sh"
# --- Step 1: Prepare Qt headers ---
echo "[1/2] Preparing Qt headers..."
if [ ! -d "$QT_HOST_DIR/include" ]; then
echo "⚠️ Qt not found at $QT_HOST_DIR/include"
echo " Install with: aqt install-qt all_os android $QT_VERSION -m qtwebsockets --outputdir $QT_DIR"
exit 1
fi
for qt_lib in \
"$QT_LIB_DIR/libQt6Core_arm64-v8a.so" \
"$QT_LIB_DIR/libQt6Network_arm64-v8a.so" \
"$QT_LIB_DIR/libQt6WebSockets_arm64-v8a.so"; do
if [ ! -f "$qt_lib" ]; then
echo "ERROR: Required Qt library not found: $qt_lib"
exit 1
fi
done
QT_INCLUDES="-I$QT_HOST_DIR/include"
for subdir in "$QT_HOST_DIR/include"/*/; do
QT_INCLUDES="$QT_INCLUDES -I$subdir"
done
echo "✅ Qt headers ready at $QT_HOST_DIR"
echo "✅ Qt libraries ready at $QT_LIB_DIR"
# --- Step 2: Compile native hooking library ---
echo "[2/2] Compiling $SO_NAME..."
"$CC" -shared -fPIC -O2 -std=c++17 -stdlib=libc++ -fno-exceptions -fno-rtti \
-DQT_NO_VERSION_TAGGING \
-o "$BUILD_DIR/$SO_NAME" \
"$SRC_DIR/rmhook.cpp" \
"$SRC_DIR/Config.cpp" \
$QT_INCLUDES \
-I"$LIBS_DIR/shadowhook/shadowhook/src/main/cpp/include" \
-I"$SRC_DIR" \
-L"$LIBS_DIR" -lshadowhook \
-L"$QT_LIB_DIR" \
-Wl,--no-undefined \
-Wl,-z,defs \
-l:libQt6WebSockets_arm64-v8a.so \
-l:libQt6Network_arm64-v8a.so \
-l:libQt6Core_arm64-v8a.so \
-lc++_shared \
-llog -ldl -lm \
-Wno-incompatible-pointer-types
echo ""
echo "✅ Compilation successful!"
echo "📍 Library: $BUILD_DIR/$SO_NAME ($(ls -lh "$BUILD_DIR/$SO_NAME" | awk '{print $5}'))"
echo ""
echo "🚀 To inject into the reMarkable application:"
echo " ./script/inject.sh"
echo ""