78 lines
2.6 KiB
Bash
78 lines
2.6 KiB
Bash
#!/usr/bin/env bash
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# build_zstd_android.sh - 为 Android 交叉编译 libzstd.a
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# 与 linux/lib/libzstd.a 版本对齐（1.5.6）
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#
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# 用法：
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# ./build_zstd_android.sh # 自动查找 NDK
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# ANDROID_NDK=/path/to/ndk ./build_zstd_android.sh
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#
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# 产出：
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# app/src/main/cpp/lib/arm64-v8a/libzstd.a
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# app/src/main/cpp/lib/armeabi-v7a/libzstd.a
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set -euo pipefail
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cd "$(dirname "$0")"
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ZSTD_VERSION="1.5.6"
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ZSTD_TAR="zstd-${ZSTD_VERSION}.tar.gz"
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ZSTD_URL="https://github.com/facebook/zstd/releases/download/v${ZSTD_VERSION}/${ZSTD_TAR}"
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ZSTD_DIR="zstd-${ZSTD_VERSION}"
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# --- 定位 NDK ---
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if [[ -z "${ANDROID_NDK:-}" ]]; then
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for candidate in \
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"$HOME/android-ndk-r27c" \
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"$HOME/Library/Android/sdk/ndk/$(ls "$HOME/Library/Android/sdk/ndk" 2>/dev/null | sort -V | tail -1)" \
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"$HOME/Android/Sdk/ndk/$(ls "$HOME/Android/Sdk/ndk" 2>/dev/null | sort -V | tail -1)"; do
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if [[ -f "${candidate}/build/cmake/android.toolchain.cmake" ]]; then
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ANDROID_NDK="$candidate"; break
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fi
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done
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fi
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[[ -z "${ANDROID_NDK:-}" ]] && { echo "Error: ANDROID_NDK not set"; exit 1; }
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TOOLCHAIN="$ANDROID_NDK/build/cmake/android.toolchain.cmake"
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echo "NDK: $ANDROID_NDK"
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# --- 下载 zstd 源码 ---
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if [[ ! -d "$ZSTD_DIR" ]]; then
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echo "Downloading zstd $ZSTD_VERSION..."
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wget -q "$ZSTD_URL" -O "$ZSTD_TAR"
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tar xf "$ZSTD_TAR"
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rm "$ZSTD_TAR"
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fi
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OUT_BASE="app/src/main/cpp/lib"
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ABIS=("arm64-v8a" "armeabi-v7a")
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for ABI in "${ABIS[@]}"; do
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BUILD_DIR="zstd_build/$ABI"
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OUT_DIR="$OUT_BASE/$ABI"
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rm -rf "$BUILD_DIR"
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echo
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echo "===== zstd $ABI ====="
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cmake \
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-B "$BUILD_DIR" -S "$ZSTD_DIR/build/cmake" \
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-DCMAKE_TOOLCHAIN_FILE="$TOOLCHAIN" \
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-DANDROID_ABI="$ABI" \
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-DANDROID_PLATFORM=android-21 \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_C_FLAGS="-Os -g0" \
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-DZSTD_BUILD_STATIC=ON \
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-DZSTD_BUILD_SHARED=OFF \
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-DZSTD_BUILD_PROGRAMS=OFF \
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-DZSTD_BUILD_TESTS=OFF \
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-DZSTD_LEGACY_SUPPORT=0
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cmake --build "$BUILD_DIR" --config Release -j"$(nproc 2>/dev/null || sysctl -n hw.logicalcpu)"
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mkdir -p "$OUT_DIR"
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cp "$BUILD_DIR/lib/libzstd.a" "$OUT_DIR/libzstd.a"
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# strip residual debug symbols from the archive
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STRIP="$ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip"
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[[ -f "$STRIP" ]] && "$STRIP" --strip-debug "$OUT_DIR/libzstd.a"
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ls -lh "$OUT_DIR/libzstd.a"
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done
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rm -rf zstd_build "$ZSTD_DIR"
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echo
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echo "===== Done ====="
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echo "libzstd.a 已写入 app/src/main/cpp/lib/{arm64-v8a,armeabi-v7a}/"
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