From 6bdc95478f999309e74249cd886615fe6118d178 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Tue, 10 Feb 2026 17:50:21 +0800
Subject: [PATCH 01/22] init

---
 .gitignore                           |  3 +-
 build_android.sh                     | 61 +++++++++++++++++++++
 cmake/bazel.cmake                    |  3 +
 examples/c++/CMakeLists.txt          | 26 +++++++++
 examples/c++/build_android.sh        | 41 ++++++++++++++
 src/ailego/CMakeLists.txt            |  2 +-
 thirdparty/arrow/CMakeLists.txt      | 54 ++++++++++++------
 thirdparty/arrow/arrow.android.patch | 82 ++++++++++++++++++++++++++++
 thirdparty/glog/CMakeLists.txt       |  9 ++-
 thirdparty/glog/glog.android.patch   | 78 ++++++++++++++++++++++++++
 thirdparty/lz4/CMakeLists.txt        | 73 +++++++++++++++++++------
 11 files changed, 396 insertions(+), 36 deletions(-)
 create mode 100644 build_android.sh
 create mode 100644 examples/c++/build_android.sh
 create mode 100644 thirdparty/arrow/arrow.android.patch
 create mode 100644 thirdparty/glog/glog.android.patch

diff --git a/.gitignore b/.gitignore
index 755089d0..0827e539 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,6 @@ build*
 bin/*
 lib/*
 var/*
-thirdparty
 venv*
 tests/integration/conf/*
 tests/de_integration/conf/*
@@ -48,3 +47,5 @@ yarn-debug.log*
 yarn-error.log*
 
 allure-*
+
+!build_android.sh
\ No newline at end of file
diff --git a/build_android.sh b/build_android.sh
new file mode 100644
index 00000000..968db554
--- /dev/null
+++ b/build_android.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+set -e
+CURRENT_DIR=$(pwd)
+
+ABI=${1:-"arm64-v8a"}
+API_LEVEL=${2:-21}
+BUILD_TYPE=${3:-"Release"}
+
+# step1: use host env to compile protoc
+echo "step1: building protoc for host..."
+HOST_BUILD_DIR="build_host"
+mkdir -p $HOST_BUILD_DIR
+cd $HOST_BUILD_DIR
+
+cmake -DCMAKE_BUILD_TYPE="$BUILD_TYPE" ..
+make -j protoc
+PROTOC_EXECUTABLE=$CURRENT_DIR/$HOST_BUILD_DIR/bin/protoc
+cd $CURRENT_DIR
+
+echo "step1: Done!!!"
+
+# step2: cross build zvec based on android ndk
+echo "step2: building zvec for android..."
+export ANDROID_SDK_ROOT=$HOME/Library/Android/sdk
+export ANDROID_HOME=$ANDROID_SDK_ROOT
+export ANDROID_NDK_HOME=$ANDROID_SDK_ROOT/ndk/28.2.13676358
+export CMAKE_TOOLCHAIN_FILE=$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake
+
+export PATH=$PATH:$ANDROID_SDK_ROOT/cmdline-tools/latest/bin
+export PATH=$PATH:$ANDROID_SDK_ROOT/platform-tools
+export PATH=$PATH:$ANDROID_NDK_HOME
+
+if [ -z "$ANDROID_NDK_HOME" ]; then
+    echo "error: ANDROID_NDK_HOME env not set"
+    echo "please install NDK and set env variable ANDROID_NDK_HOME"
+    exit 1
+fi
+
+BUILD_DIR="build_android_${ABI}_macos"
+mkdir -p $BUILD_DIR
+cd $BUILD_DIR
+
+echo "configure CMake..."
+cmake \
+    -DANDROID_NDK="$ANDROID_NDK_HOME" \
+    -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
+    -DANDROID_ABI="$ABI" \
+    -DANDROID_NATIVE_API_LEVEL="$API_LEVEL" \
+    -DANDROID_STL="c++_static" \
+    -DCMAKE_BUILD_TYPE="$BUILD_TYPE" \
+    -DBUILD_PYTHON_BINDINGS=OFF \
+    -DBUILD_TOOLS=OFF \
+    -DCMAKE_INSTALL_PREFIX="./install" \
+    -DGLOBAL_CC_PROTOBUF_PROTOC=$PROTOC_EXECUTABLE \
+    ../
+
+echo "building..."
+CORE_COUNT=$(sysctl -n hw.ncpu)
+make -j$CORE_COUNT
+
+echo "step2: Done!!!"
\ No newline at end of file
diff --git a/cmake/bazel.cmake b/cmake/bazel.cmake
index deaf1656..f1effc6d 100644
--- a/cmake/bazel.cmake
+++ b/cmake/bazel.cmake
@@ -1313,6 +1313,9 @@ function(cc_proto_library)
 
   _find_protobuf("${CC_ARGS_PROTOBUF_VERSION}")
   set(CC_PROTOBUF_PROTOC ${CC_PROTOBUF_PROTOC_${CC_ARGS_PROTOBUF_VERSION}})
+  if(DEFINED GLOBAL_CC_PROTOBUF_PROTOC)
+    set(CC_PROTOBUF_PROTOC ${GLOBAL_CC_PROTOBUF_PROTOC})
+  endif()
   set(CC_PROTOBUF_INCS ${CC_PROTOBUF_INCS_${CC_ARGS_PROTOBUF_VERSION}})
   set(CC_PROTOBUF_LIBS ${CC_PROTOBUF_LIBS_${CC_ARGS_PROTOBUF_VERSION}})
 
diff --git a/examples/c++/CMakeLists.txt b/examples/c++/CMakeLists.txt
index 0751bf9e..b29dce8e 100644
--- a/examples/c++/CMakeLists.txt
+++ b/examples/c++/CMakeLists.txt
@@ -84,6 +84,16 @@ elseif(APPLE)
         zvec-ailego
         ${zvec_core_deps}
     )
+elseif(ANDROID)
+    target_link_libraries(zvec-core INTERFACE
+        -Wl,--whole-archive
+        zvec_core
+        -Wl,--no-whole-archive
+        -Wl,--start-group
+        zvec-ailego
+        ${zvec_core_deps}
+        -Wl,--end-group
+    )
 else()
     message(FATAL_ERROR "Unsupported platform: ${CMAKE_SYSTEM_NAME}")
 endif()
@@ -106,6 +116,17 @@ elseif(APPLE)
         zvec-ailego
         ${zvec_db_deps}
     )
+elseif(ANDROID)
+    target_link_libraries(zvec-db INTERFACE
+        zvec_db
+        zvec-core
+        zvec-ailego
+        -Wl,--start-group
+        ${zvec_db_deps}
+        -Wl,--end-group
+    )
+else()
+    message(FATAL_ERROR "Unsupported platform: ${CMAKE_SYSTEM_NAME}")
 endif()
 
 
@@ -114,6 +135,11 @@ add_executable(db-example db/main.cc)
 target_link_libraries(db-example PRIVATE
     zvec-db
 )
+if(ANDROID)
+    target_link_libraries(db-example PRIVATE
+        log
+    )
+endif()
 
 add_executable(core-example core/main.cc)
 target_link_libraries(core-example PRIVATE
diff --git a/examples/c++/build_android.sh b/examples/c++/build_android.sh
new file mode 100644
index 00000000..946f8ed4
--- /dev/null
+++ b/examples/c++/build_android.sh
@@ -0,0 +1,41 @@
+export ANDROID_SDK_ROOT=$HOME/Library/Android/sdk
+export ANDROID_HOME=$ANDROID_SDK_ROOT
+export ANDROID_NDK_HOME=$ANDROID_SDK_ROOT/ndk/28.2.13676358
+export CMAKE_TOOLCHAIN_FILE=$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake
+
+export PATH=$PATH:$ANDROID_SDK_ROOT/cmdline-tools/latest/bin
+export PATH=$PATH:$ANDROID_SDK_ROOT/platform-tools
+export PATH=$PATH:$ANDROID_NDK_HOME
+
+#!/bin/bash
+set -e
+
+if [ -z "$ANDROID_NDK_HOME" ]; then
+    echo "error: ANDROID_NDK_HOME env not set"
+    echo "please install NDK and set env variable ANDROID_NDK_HOME"
+    exit 1
+fi
+
+ABI=${1:-"arm64-v8a"}
+API_LEVEL=${2:-21}
+BUILD_TYPE=${3:-"Release"}
+
+BUILD_DIR="build_android_${ABI}_macos"
+mkdir -p $BUILD_DIR
+cd $BUILD_DIR
+
+echo "configure CMake..."
+cmake \
+    -DANDROID_NDK="$ANDROID_NDK_HOME" \
+    -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
+    -DANDROID_ABI="$ABI" \
+    -DANDROID_NATIVE_API_LEVEL="$API_LEVEL" \
+    -DCMAKE_BUILD_TYPE="$BUILD_TYPE" \
+    -DBUILD_PYTHON_BINDINGS=OFF \
+    -DBUILD_TOOLS=OFF \
+    -DCMAKE_INSTALL_PREFIX="./install" \
+    ../
+
+echo "building..."
+CORE_COUNT=$(sysctl -n hw.ncpu)
+make -j$CORE_COUNT
diff --git a/src/ailego/CMakeLists.txt b/src/ailego/CMakeLists.txt
index b01df973..5fcaacac 100644
--- a/src/ailego/CMakeLists.txt
+++ b/src/ailego/CMakeLists.txt
@@ -3,7 +3,7 @@ include(${PROJECT_ROOT_DIR}/cmake/option.cmake)
 
 find_package(Threads REQUIRED)
 
-if(UNIX AND NOT APPLE)
+if(UNIX AND NOT APPLE AND NOT ANDROID)
     find_library(LIB_RT NAMES rt)
 else()
     set(LIB_RT "")
diff --git a/thirdparty/arrow/CMakeLists.txt b/thirdparty/arrow/CMakeLists.txt
index eb8cad06..19c7e863 100644
--- a/thirdparty/arrow/CMakeLists.txt
+++ b/thirdparty/arrow/CMakeLists.txt
@@ -1,6 +1,11 @@
 set(ARROW_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/apache-arrow-21.0.0)
-set(ARROW_PATCH ${CMAKE_CURRENT_SOURCE_DIR}/arrow.patch)
-apply_patch_once("arrow_fix" "${ARROW_SRC_DIR}" "${ARROW_PATCH}")
+if(ANDROID)
+        set(ARROW_PATCH ${CMAKE_CURRENT_SOURCE_DIR}/arrow.android.patch)
+        apply_patch_once("arrow_android_fix" "${ARROW_SRC_DIR}" "${ARROW_PATCH}")
+else()
+        set(ARROW_PATCH ${CMAKE_CURRENT_SOURCE_DIR}/arrow.patch)
+        apply_patch_once("arrow_fix" "${ARROW_SRC_DIR}" "${ARROW_PATCH}")
+endif()
 
 include(ExternalProject)
 include(ProcessorCount)
@@ -14,20 +19,37 @@ set(LIB_ACERO ${EXTERNAL_LIB_DIR}/libarrow_acero.a)
 set(LIB_ARROW_DEPENDS ${EXTERNAL_LIB_DIR}/libarrow_bundled_dependencies.a)
 set(LIB_ARROW_DATASET ${EXTERNAL_LIB_DIR}/libarrow_dataset.a)
 
-ExternalProject_Add(
-        ARROW.BUILD PREFIX arrow
-        SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/apache-arrow-21.0.0
-        DOWNLOAD_COMMAND ""
-        BUILD_IN_SOURCE false
-        CONFIGURE_COMMAND "${CMAKE_COMMAND}" ${CMAKE_CACHE_ARGS} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_DEBUG_POSTFIX= -DARROW_BUILD_SHARED=OFF -DARROW_ACERO=ON -DARROW_FILESYSTEM=ON -DARROW_DATASET=ON -DARROW_PARQUET=ON -DARROW_COMPUTE=ON -DARROW_WITH_ZLIB=OFF -DARROW_DEPENDENCY_SOURCE=BUNDLED -DARROW_MIMALLOC=OFF -DCMAKE_INSTALL_LIBDIR=lib "<SOURCE_DIR>/cpp"
-        BUILD_COMMAND "${CMAKE_COMMAND}" --build . --target all -- -j ${NPROC}
-        INSTALL_COMMAND "${CMAKE_COMMAND}" --install "<BINARY_DIR>" --prefix=${EXTERNAL_BINARY_DIR}/usr/local
-        BYPRODUCTS ${LIB_PARQUET} ${LIB_ARROW} ${LIB_COMPUTE} ${LIB_ACERO} ${LIB_ARROW_DEPENDS} ${LIB_ARROW_DATASET}
-        LOG_DOWNLOAD ON
-        LOG_CONFIGURE ON
-        LOG_BUILD ON
-        LOG_INSTALL ON
-)
+if(ANDROID)
+        ExternalProject_Add(
+                ARROW.BUILD PREFIX arrow
+                SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/apache-arrow-21.0.0
+                DOWNLOAD_COMMAND ""
+                BUILD_IN_SOURCE false
+                CONFIGURE_COMMAND "${CMAKE_COMMAND}" ${CMAKE_CACHE_ARGS} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_DEBUG_POSTFIX= -DARROW_BUILD_SHARED=OFF -DARROW_ACERO=ON -DARROW_FILESYSTEM=ON -DARROW_DATASET=ON -DARROW_PARQUET=ON -DARROW_COMPUTE=ON -DARROW_WITH_ZLIB=OFF -DARROW_DEPENDENCY_SOURCE=BUNDLED -DARROW_MIMALLOC=OFF -DCMAKE_INSTALL_LIBDIR=lib -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} -DANDROID_ABI=${ANDROID_ABI} -DANDROID_NATIVE_API_LEVEL=${ANDROID_NATIVE_API_LEVEL} -DARROW_WITH_MUSL=OFF "<SOURCE_DIR>/cpp"
+                BUILD_COMMAND "${CMAKE_COMMAND}" --build . --target all -- -j ${NPROC}
+                INSTALL_COMMAND "${CMAKE_COMMAND}" --install "<BINARY_DIR>" --prefix=${EXTERNAL_BINARY_DIR}/usr/local
+                BYPRODUCTS ${LIB_PARQUET} ${LIB_ARROW} ${LIB_COMPUTE} ${LIB_ACERO} ${LIB_ARROW_DEPENDS} ${LIB_ARROW_DATASET}
+                LOG_DOWNLOAD ON
+                LOG_CONFIGURE ON
+                LOG_BUILD ON
+                LOG_INSTALL ON
+        )
+else()
+        ExternalProject_Add(
+                ARROW.BUILD PREFIX arrow
+                SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/apache-arrow-21.0.0
+                DOWNLOAD_COMMAND ""
+                BUILD_IN_SOURCE false
+                CONFIGURE_COMMAND "${CMAKE_COMMAND}" ${CMAKE_CACHE_ARGS} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_DEBUG_POSTFIX= -DARROW_BUILD_SHARED=OFF -DARROW_ACERO=ON -DARROW_FILESYSTEM=ON -DARROW_DATASET=ON -DARROW_PARQUET=ON -DARROW_COMPUTE=ON -DARROW_WITH_ZLIB=OFF -DARROW_DEPENDENCY_SOURCE=BUNDLED -DARROW_MIMALLOC=OFF -DCMAKE_INSTALL_LIBDIR=lib "<SOURCE_DIR>/cpp"
+                BUILD_COMMAND "${CMAKE_COMMAND}" --build . --target all -- -j ${NPROC}
+                INSTALL_COMMAND "${CMAKE_COMMAND}" --install "<BINARY_DIR>" --prefix=${EXTERNAL_BINARY_DIR}/usr/local
+                BYPRODUCTS ${LIB_PARQUET} ${LIB_ARROW} ${LIB_COMPUTE} ${LIB_ACERO} ${LIB_ARROW_DEPENDS} ${LIB_ARROW_DATASET}
+                LOG_DOWNLOAD ON
+                LOG_CONFIGURE ON
+                LOG_BUILD ON
+                LOG_INSTALL ON
+        )
+endif()
 add_library(arrow UNKNOWN IMPORTED GLOBAL)
 add_dependencies(arrow ARROW.BUILD)
 
diff --git a/thirdparty/arrow/arrow.android.patch b/thirdparty/arrow/arrow.android.patch
new file mode 100644
index 00000000..a4e8bba2
--- /dev/null
+++ b/thirdparty/arrow/arrow.android.patch
@@ -0,0 +1,82 @@
+diff --git a/cpp/cmake_modules/ThirdpartyToolchain.cmake b/cpp/cmake_modules/ThirdpartyToolchain.cmake
+index 7fa4b66d4b..78bcb6d47e 100644
+--- a/cpp/cmake_modules/ThirdpartyToolchain.cmake
++++ b/cpp/cmake_modules/ThirdpartyToolchain.cmake
+@@ -950,6 +950,13 @@ set(EP_COMMON_CMAKE_ARGS
+     # https://github.com/apache/arrow/issues/45985
+     -DCMAKE_POLICY_VERSION_MINIMUM=3.5)
+ 
++if(ANDROID)
++  list(APPEND EP_COMMON_CMAKE_ARGS 
++  -DANDROID_ABI=${ANDROID_ABI}
++  -DANDROID_NATIVE_API_LEVEL=${ANDROID_NATIVE_API_LEVEL}
++  -DANDROID_NDK=${ANDROID_NDK})
++endif()
++
+ # if building with a toolchain file, pass that through
+ if(CMAKE_TOOLCHAIN_FILE)
+   list(APPEND EP_COMMON_CMAKE_ARGS -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE})
+diff --git a/cpp/src/arrow/acero/source_node.cc b/cpp/src/arrow/acero/source_node.cc
+index 0f58406760..cf68bfdcbe 100644
+--- a/cpp/src/arrow/acero/source_node.cc
++++ b/cpp/src/arrow/acero/source_node.cc
+@@ -407,7 +407,7 @@ struct SchemaSourceNode : public SourceNode {
+ struct RecordBatchReaderSourceNode : public SourceNode {
+   RecordBatchReaderSourceNode(ExecPlan* plan, std::shared_ptr<Schema> schema,
+                               arrow::AsyncGenerator<std::optional<ExecBatch>> generator)
+-      : SourceNode(plan, schema, generator) {}
++      : SourceNode(plan, schema, generator, Ordering::Implicit()) {}
+ 
+   static Result<ExecNode*> Make(ExecPlan* plan, std::vector<ExecNode*> inputs,
+                                 const ExecNodeOptions& options) {
+diff --git a/cpp/src/arrow/vendored/datetime/tz.cpp b/cpp/src/arrow/vendored/datetime/tz.cpp
+index 2cf6c62a84..9e64b62297 100644
+--- a/cpp/src/arrow/vendored/datetime/tz.cpp
++++ b/cpp/src/arrow/vendored/datetime/tz.cpp
+@@ -605,7 +605,9 @@ tzdb_list
+ create_tzdb()
+ {
+     tzdb_list tz_db;
++#if !defined(ANDROID) && !defined(__ANDROID__)
+     tzdb_list::undocumented_helper::push_front(tz_db, init_tzdb().release());
++#endif // !defined(ANDROID) && !defined(__ANDROID__)
+     return tz_db;
+ }
+ 
+@@ -3900,7 +3902,9 @@ reload_tzdb()
+     if (!v.empty() && v == remote_version())
+         return get_tzdb_list().front();
+ #endif  // AUTO_DOWNLOAD
++#if !defined(ANDROID) && !defined(__ANDROID__)
+     tzdb_list::undocumented_helper::push_front(get_tzdb_list(), init_tzdb().release());
++#endif  // !defined(ANDROID) && !defined(__ANDROID__)
+     return get_tzdb_list().front();
+ }
+ 
+diff --git a/cpp/src/arrow/vendored/datetime/tz.h b/cpp/src/arrow/vendored/datetime/tz.h
+index 61ab3df106..d456d6765f 100644
+--- a/cpp/src/arrow/vendored/datetime/tz.h
++++ b/cpp/src/arrow/vendored/datetime/tz.h
+@@ -858,7 +858,9 @@ private:
+     load_data(std::istream& inf, std::int32_t tzh_leapcnt, std::int32_t tzh_timecnt,
+                                  std::int32_t tzh_typecnt, std::int32_t tzh_charcnt);
+ # if defined(ANDROID) || defined(__ANDROID__)
++public:
+     void parse_from_android_tzdata(std::ifstream& inf, const std::size_t off);
++private:
+ # endif // defined(ANDROID) || defined(__ANDROID__)
+ #else  // !USE_OS_TZDB
+     DATE_API sys_info   get_info_impl(sys_seconds tp, int tz_int) const;
+diff --git a/cpp/src/arrow/vendored/musl/strptime.c b/cpp/src/arrow/vendored/musl/strptime.c
+index 41912fd1bb..9d0b4dc1bf 100644
+--- a/cpp/src/arrow/vendored/musl/strptime.c
++++ b/cpp/src/arrow/vendored/musl/strptime.c
+@@ -17,7 +17,7 @@
+ 
+ #undef HAVE_LANGINFO
+ 
+-#ifndef _WIN32
++#if !defined(_WIN32) && !defined(__ANDROID__)
+ #define HAVE_LANGINFO 1
+ #endif
+ 
diff --git a/thirdparty/glog/CMakeLists.txt b/thirdparty/glog/CMakeLists.txt
index 04c1d085..611f18ef 100644
--- a/thirdparty/glog/CMakeLists.txt
+++ b/thirdparty/glog/CMakeLists.txt
@@ -6,8 +6,13 @@ set(HAVE_LIB_GFLAGS TRUE CACHE BOOL "")
 add_compile_options(-Wno-deprecated-declarations)
 
 set(GLOG_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/glog-0.5.0)
-set(GLOG_PATCH ${CMAKE_CURRENT_SOURCE_DIR}/glog.patch)
-apply_patch_once("glog_fix" "${GLOG_SRC_DIR}" "${GLOG_PATCH}")
+if (ANDROID)
+    set(GLOG_ANDROID_PATCH ${CMAKE_CURRENT_SOURCE_DIR}/glog.android.patch)
+    apply_patch_once("glog_android_fix" "${GLOG_SRC_DIR}" "${GLOG_ANDROID_PATCH}")
+else()
+    set(GLOG_PATCH ${CMAKE_CURRENT_SOURCE_DIR}/glog.patch)
+    apply_patch_once("glog_fix" "${GLOG_SRC_DIR}" "${GLOG_PATCH}")
+endif()
 
 set(_SAVED_CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY})
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${EXTERNAL_LIB_DIR})
diff --git a/thirdparty/glog/glog.android.patch b/thirdparty/glog/glog.android.patch
new file mode 100644
index 00000000..7b2d1a31
--- /dev/null
+++ b/thirdparty/glog/glog.android.patch
@@ -0,0 +1,78 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 62ebbcc..e17f67e 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -17,7 +17,7 @@ set (CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
+ set (CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
+ set (CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
+ 
+-option (BUILD_SHARED_LIBS "Build shared libraries" ON)
++option (BUILD_STATIC_LIBS "Build shared libraries" ON)
+ option (PRINT_UNSYMBOLIZED_STACK_TRACES
+   "Print file offsets in traces instead of symbolizing" OFF)
+ option (WITH_CUSTOM_PREFIX "Enable support for user-generated message prefixes" OFF)
+@@ -802,12 +802,12 @@ if (BUILD_TESTING)
+     FIXTURES_REQUIRED "cmake_package_config;cmake_package_config_working")
+ endif (BUILD_TESTING)
+ 
+-install (TARGETS glog
+-  EXPORT glog-targets
+-  RUNTIME DESTINATION ${_glog_CMake_BINDIR}
+-  PUBLIC_HEADER DESTINATION ${_glog_CMake_INCLUDE_DIR}/glog
+-  LIBRARY DESTINATION ${_glog_CMake_LIBDIR}
+-  ARCHIVE DESTINATION ${_glog_CMake_LIBDIR})
++#install (TARGETS glog
++#  EXPORT glog-targets
++#  RUNTIME DESTINATION ${_glog_CMake_BINDIR}
++#  PUBLIC_HEADER DESTINATION ${_glog_CMake_INCLUDE_DIR}/glog
++#  LIBRARY DESTINATION ${_glog_CMake_LIBDIR}
++#  ARCHIVE DESTINATION ${_glog_CMake_LIBDIR})
+ 
+ if (WITH_PKGCONFIG)
+   install (
+@@ -840,8 +840,8 @@ write_basic_package_version_file (
+   ${CMAKE_CURRENT_BINARY_DIR}/glog-config-version.cmake
+   COMPATIBILITY SameMajorVersion)
+ 
+-export (TARGETS glog NAMESPACE glog:: FILE glog-targets.cmake)
+-export (PACKAGE glog)
++#export (TARGETS glog NAMESPACE glog:: FILE glog-targets.cmake)
++#export (PACKAGE glog)
+ 
+ get_filename_component (_PREFIX "${CMAKE_INSTALL_PREFIX}" ABSOLUTE)
+ 
+@@ -885,5 +885,5 @@ install (DIRECTORY ${_glog_BINARY_CMake_DATADIR}
+   FILES_MATCHING PATTERN "*.cmake"
+ )
+ 
+-install (EXPORT glog-targets NAMESPACE glog:: DESTINATION
+-  ${_glog_CMake_INSTALLDIR})
++#install (EXPORT glog-targets NAMESPACE glog:: DESTINATION
++#  ${_glog_CMake_INSTALLDIR})
+diff --git a/src/stacktrace_generic-inl.h b/src/stacktrace_generic-inl.h
+index fad81d3..67209ac 100644
+--- a/src/stacktrace_generic-inl.h
++++ b/src/stacktrace_generic-inl.h
+@@ -39,21 +39,7 @@ _START_GOOGLE_NAMESPACE_
+ 
+ // If you change this function, also change GetStackFrames below.
+ int GetStackTrace(void** result, int max_depth, int skip_count) {
+-  static const int kStackLength = 64;
+-  void * stack[kStackLength];
+-  int size;
+-
+-  size = backtrace(stack, kStackLength);
+-  skip_count++;  // we want to skip the current frame as well
+-  int result_count = size - skip_count;
+-  if (result_count < 0)
+-    result_count = 0;
+-  if (result_count > max_depth)
+-    result_count = max_depth;
+-  for (int i = 0; i < result_count; i++)
+-    result[i] = stack[i + skip_count];
+-
+-  return result_count;
++  return 0;
+ }
+ 
+ _END_GOOGLE_NAMESPACE_
diff --git a/thirdparty/lz4/CMakeLists.txt b/thirdparty/lz4/CMakeLists.txt
index ad5f96b1..7db62d4f 100644
--- a/thirdparty/lz4/CMakeLists.txt
+++ b/thirdparty/lz4/CMakeLists.txt
@@ -4,26 +4,67 @@ file(MAKE_DIRECTORY ${lz4_INCLUDE_DIR})
 file(MAKE_DIRECTORY ${lz4_LIBRARY_DIR})
 
 include(ExternalProject)
-ExternalProject_Add(
-        Lz4.BUILD
-        PREFIX lz4
-    URL "${CMAKE_CURRENT_SOURCE_DIR}/lz4-1.9.4"
-    CONFIGURE_COMMAND ""
-    BUILD_COMMAND env CFLAGS=-fPIC BUILD_SHARED=no make -j
-    INSTALL_COMMAND make DESTDIR=${EXTERNAL_BINARY_DIR} BUILD_SHARED=no install
-    BUILD_IN_SOURCE ON
-    LOG_DOWNLOAD ON
-    LOG_CONFIGURE ON
-    LOG_BUILD ON
-    LOG_INSTALL ON
-    BUILD_BYPRODUCTS ${lz4_LIBRARY_DIR}/liblz4.a
+
+set(_lz4_env "")
+if(ANDROID)
+  string(REGEX REPLACE "^android-([0-9]+)$" "\\1" ANDROID_API_LEVEL "${ANDROID_PLATFORM}")
+
+  if(ANDROID_ABI STREQUAL "arm64-v8a")
+    set(TARGET_TRIPLE "aarch64-linux-android")
+  elseif(ANDROID_ABI STREQUAL "armeabi-v7a")
+    set(TARGET_TRIPLE "armv7a-linux-androideabi")
+  elseif(ANDROID_ABI STREQUAL "x86")
+    set(TARGET_TRIPLE "i686-linux-android")
+  elseif(ANDROID_ABI STREQUAL "x86_64")
+    set(TARGET_TRIPLE "x86_64-linux-android")
+  else()
+    message(FATAL_ERROR "Unsupported ANDROID_ABI: ${ANDROID_ABI}")
+  endif()
+
+  set(SYSROOT "${ANDROID_NDK}/toolchains/llvm/prebuilt/${ANDROID_HOST_TAG}/sysroot")
+  set(COMMON_FLAGS
+    "--sysroot=${SYSROOT}"
+    "-target ${TARGET_TRIPLE}${ANDROID_API_LEVEL}"
+    "-fPIC"
+    "-D__ANDROID_API__=${ANDROID_API_LEVEL}"
+  )
+
+  list(APPEND COMMON_FLAGS ${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE}})
+
+  string(JOIN " " _lz4_cflags ${COMMON_FLAGS})
+
+  list(APPEND _lz4_env
+    "CC=${CMAKE_C_COMPILER}"
+    "AR=${CMAKE_AR}"
+    "RANLIB=${CMAKE_RANLIB}"
+    "STRIP=${ANDROID_NDK}/toolchains/llvm/prebuilt/${ANDROID_HOST_TAG}/bin/llvm-strip"
+    "CFLAGS=${_lz4_cflags}"
   )
 
+else()
+  list(APPEND _lz4_env "CFLAGS=-fPIC")
+endif()
+
+ExternalProject_Add(
+  Lz4.BUILD
+  PREFIX lz4
+  URL "${CMAKE_CURRENT_SOURCE_DIR}/lz4-1.9.4"
+  CONFIGURE_COMMAND ""
+    BUILD_COMMAND env ${_lz4_env} BUILD_SHARED=no make -j
+  INSTALL_COMMAND make DESTDIR=${EXTERNAL_BINARY_DIR} BUILD_SHARED=no install
+  BUILD_IN_SOURCE ON
+  LOG_DOWNLOAD ON
+  LOG_CONFIGURE ON
+  LOG_BUILD ON
+  LOG_INSTALL ON
+  BUILD_BYPRODUCTS ${lz4_LIBRARY_DIR}/liblz4.a
+)
+
 add_library(lz4 STATIC IMPORTED GLOBAL)
 set_target_properties(
-    lz4 PROPERTIES
-    INTERFACE_INCLUDE_DIRECTORIES "${lz4_INCLUDE_DIR}"
-    IMPORTED_LOCATION "${lz4_LIBRARY_DIR}/liblz4.a"
+  lz4 PROPERTIES
+  INTERFACE_INCLUDE_DIRECTORIES "${lz4_INCLUDE_DIR}"
+  IMPORTED_LOCATION "${lz4_LIBRARY_DIR}/liblz4.a"
 )
 add_dependencies(lz4 Lz4.BUILD)
 

From dde93021930c1a4e1dc59338477c265b6bfdfdf8 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Tue, 10 Feb 2026 18:09:00 +0800
Subject: [PATCH 02/22] fix

---
 build_android.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/build_android.sh b/build_android.sh
index 968db554..7a5c40a6 100644
--- a/build_android.sh
+++ b/build_android.sh
@@ -21,6 +21,10 @@ echo "step1: Done!!!"
 
 # step2: cross build zvec based on android ndk
 echo "step2: building zvec for android..."
+
+# reset thirdparty directory
+git submodule foreach --recursive 'git stash --include-untracked'
+
 export ANDROID_SDK_ROOT=$HOME/Library/Android/sdk
 export ANDROID_HOME=$ANDROID_SDK_ROOT
 export ANDROID_NDK_HOME=$ANDROID_SDK_ROOT/ndk/28.2.13676358

From 7fad00234847d914fa6b9d4dc81a90a8e7fbdf42 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Tue, 10 Feb 2026 20:26:11 +0800
Subject: [PATCH 03/22] fix ruff ignore

---
 pyproject.toml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pyproject.toml b/pyproject.toml
index dee6728d..051bb136 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -182,6 +182,7 @@ exclude = [
     ".git/",
     ".venv/",
     "venv/",
+    "thirdparty",
 ]
 
 [tool.ruff.lint]

From 902b6efc25b2f30a28686a8734177c34cb540e9f Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Tue, 10 Feb 2026 20:54:14 +0800
Subject: [PATCH 04/22] add android ci

---
 .github/workflows/android_build.yml | 72 +++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 .github/workflows/android_build.yml

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
new file mode 100644
index 00000000..d624768d
--- /dev/null
+++ b/.github/workflows/android_build.yml
@@ -0,0 +1,72 @@
+name: android-cross-build
+
+on:
+  push:
+    branches: [ "main" ]
+    paths-ignore:
+      - '**.md'
+  merge_group:
+  pull_request:
+    branches: [ "main" ]
+    paths-ignore:
+      - '**.md'
+  workflow_dispatch:
+
+jobs:
+  build-android:
+    runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        # abi: [arm64-v8a, armeabi-v7a, x86_64]
+        abi: [arm64-v8a]
+        api: [21]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            cmake ninja-build git ca-certificates python3 \
+            build-essential make
+
+      - name: Setup Android NDK
+        uses: android-actions/setup-android@v3
+
+      - name: Install NDK (side by side)
+        shell: bash
+        run: |
+          yes | sdkmanager --licenses
+          sdkmanager "ndk;26.1.10909125"
+
+      - name: Use host env to compile protoc
+        shell: bash
+        run: |
+          cmake -S . -B build-host -G Ninja
+          cmake --build build-host --target protoc --parallel
+
+      - name: Configure (CMake)
+        shell: bash
+        run: |
+          git submodule foreach --recursive 'git stash --include-untracked'
+
+          export ANDROID_SDK_ROOT="$ANDROID_HOME"
+          export ANDROID_NDK_HOME="$ANDROID_SDK_ROOT/ndk/26.1.10909125"
+
+          cmake -S . -B build-android-${{ matrix.abi }} -G Ninja \
+            -DCMAKE_BUILD_TYPE=Release \
+            -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
+            -DANDROID_ABI=${{ matrix.abi }} \
+            -DANDROID_PLATFORM=android-${{ matrix.api }} \
+            -DANDROID_STL=c++_shared \
+            -DBUILD_PYTHON_BINDINGS=OFF \
+            -DBUILD_TOOLS=OFF \
+            -DGLOBAL_CC_PROTOBUF_PROTOC=build-host/bin/protoc \
+
+      - name: Build
+        shell: bash
+        run: |
+          cmake --build build-android-${{ matrix.abi }} --parallel

From 632a819caa258f89266b09e836106a963be7b605 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Tue, 10 Feb 2026 20:59:30 +0800
Subject: [PATCH 05/22] fix

---
 .github/workflows/android_build.yml | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index d624768d..6fcdd669 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -33,14 +33,20 @@ jobs:
             cmake ninja-build git ca-certificates python3 \
             build-essential make
 
+      - name: Setup Java 17
+        uses: actions/setup-java@v4
+        with:
+            distribution: temurin
+            java-version: '17'
+
       - name: Setup Android NDK
         uses: android-actions/setup-android@v3
 
       - name: Install NDK (side by side)
         shell: bash
         run: |
-          yes | sdkmanager --licenses
-          sdkmanager "ndk;26.1.10909125"
+            yes | sdkmanager --licenses
+            sdkmanager "ndk;26.1.10909125"
 
       - name: Use host env to compile protoc
         shell: bash

From a49cb0030841c19a596c2ce1dec538e89805cdcc Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Tue, 10 Feb 2026 21:05:39 +0800
Subject: [PATCH 06/22] fix

---
 .github/workflows/android_build.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index 6fcdd669..c21f9a86 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -45,7 +45,7 @@ jobs:
       - name: Install NDK (side by side)
         shell: bash
         run: |
-            yes | sdkmanager --licenses
+            # yes | sdkmanager --licenses
             sdkmanager "ndk;26.1.10909125"
 
       - name: Use host env to compile protoc

From 8146a6c7463289fe8dc7fd81bf3bee7a0f830d68 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Tue, 10 Feb 2026 21:08:51 +0800
Subject: [PATCH 07/22] fix

---
 .github/workflows/android_build.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index c21f9a86..a54e9ff8 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -51,6 +51,7 @@ jobs:
       - name: Use host env to compile protoc
         shell: bash
         run: |
+          git submodule update --init
           cmake -S . -B build-host -G Ninja
           cmake --build build-host --target protoc --parallel
 

From d2fddc13d088ad00e7dfc02796fecf5ebdd0ca39 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Tue, 10 Feb 2026 21:41:08 +0800
Subject: [PATCH 08/22] fix

---
 .github/workflows/android_build.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index a54e9ff8..667975e7 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -71,7 +71,7 @@ jobs:
             -DANDROID_STL=c++_shared \
             -DBUILD_PYTHON_BINDINGS=OFF \
             -DBUILD_TOOLS=OFF \
-            -DGLOBAL_CC_PROTOBUF_PROTOC=build-host/bin/protoc \
+            -DGLOBAL_CC_PROTOBUF_PROTOC="$GITHUB_WORKSPACE/build-host/bin/protoc" \
 
       - name: Build
         shell: bash

From 9c6c0ca5c260ac9d4ffd4c31c19d3b2d6b3e3043 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Wed, 11 Feb 2026 11:19:16 +0800
Subject: [PATCH 09/22] add adb shell

---
 .github/workflows/android_build.yml | 46 +++++++++++++++++++++++++++++
 build_android.sh                    |  2 +-
 examples/c++/CMakeLists.txt         |  9 ++++--
 examples/c++/build_android.sh       |  4 +--
 4 files changed, 55 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index 667975e7..ae0bc9f8 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -77,3 +77,49 @@ jobs:
         shell: bash
         run: |
           cmake --build build-android-${{ matrix.abi }} --parallel
+
+      - name: Build examples
+        shell: bash
+        run: |
+          cd examples/c++
+          
+          cmake -S . -B  build-android-examples-${{ matrix.abi }} -D Ninja \
+            -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
+            -DANDROID_ABI=${{ matrix.abi }} \
+            -DANDROID_PLATFORM=android-${{ matrix.api }} \
+            -DANDROID_STL=c++_shared \
+            -DCMAKE_BUILD_TYPE=Release \
+            -DHOST_BUILD_DIR="build-android-${{ matrix.abi }}" \
+          
+          cmake --build build-android-examples-${{ matrix.abi }} --parallel
+
+      - name: Install ADB and setup Android emulator
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: ${{ matrix.api }}
+          abi: ${{ matrix.abi }}
+          script: |
+            # Wait for device to be ready
+            adb wait-for-device
+            
+            # Push executables to device
+            adb push examples/c++/build-android-examples-${{ matrix.abi }}/ailego-example /data/local/tmp/
+            adb push examples/c++/build-android-examples-${{ matrix.abi }}/core-example /data/local/tmp/
+            adb push examples/c++/build-android-examples-${{ matrix.abi }}/db-example /data/local/tmp/
+            
+            # Make executables executable
+            adb shell chmod +x /data/local/tmp/ailego-example
+            adb shell chmod +x /data/local/tmp/core-example
+            adb shell chmod +x /data/local/tmp/db-example
+            
+            echo "Running ailego example:"
+            adb shell 'cd /data/local/tmp/ && ./ailego-example'
+            echo "Exit code: $?"
+            
+            echo "Running core example:"
+            adb shell 'cd /data/local/tmp/ && ./core-example'
+            echo "Exit code: $?"
+            
+            echo "Running db example:"
+            adb shell 'cd /data/local/tmp/ && ./db-example'
+            echo "Exit code: $?"
diff --git a/build_android.sh b/build_android.sh
index 7a5c40a6..80ff80cd 100644
--- a/build_android.sh
+++ b/build_android.sh
@@ -40,7 +40,7 @@ if [ -z "$ANDROID_NDK_HOME" ]; then
     exit 1
 fi
 
-BUILD_DIR="build_android_${ABI}_macos"
+BUILD_DIR="build_android_${ABI}"
 mkdir -p $BUILD_DIR
 cd $BUILD_DIR
 
diff --git a/examples/c++/CMakeLists.txt b/examples/c++/CMakeLists.txt
index b29dce8e..13d6711c 100644
--- a/examples/c++/CMakeLists.txt
+++ b/examples/c++/CMakeLists.txt
@@ -7,9 +7,14 @@ set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # --- Paths to Zvec and dependencies ---
+# Allow custom host build directory, default to "build"
+if(NOT DEFINED HOST_BUILD_DIR)
+    set(HOST_BUILD_DIR "build")
+endif()
+
 set(ZVEC_INCLUDE_DIR ${CMAKE_BINARY_DIR}/../../../src/include)
-set(ZVEC_LIB_DIR ${CMAKE_BINARY_DIR}/../../../build/lib)
-set(ZVEC_DEPENDENCY_LIB_DIR ${CMAKE_BINARY_DIR}/../../../build/external/usr/local/lib)
+set(ZVEC_LIB_DIR ${CMAKE_BINARY_DIR}/../../../${HOST_BUILD_DIR}/lib)
+set(ZVEC_DEPENDENCY_LIB_DIR ${CMAKE_BINARY_DIR}/../../../${HOST_BUILD_DIR}/external/usr/local/lib)
 
 # Add include and library search paths
 include_directories(${ZVEC_INCLUDE_DIR})
diff --git a/examples/c++/build_android.sh b/examples/c++/build_android.sh
index 946f8ed4..64409c34 100644
--- a/examples/c++/build_android.sh
+++ b/examples/c++/build_android.sh
@@ -31,9 +31,7 @@ cmake \
     -DANDROID_ABI="$ABI" \
     -DANDROID_NATIVE_API_LEVEL="$API_LEVEL" \
     -DCMAKE_BUILD_TYPE="$BUILD_TYPE" \
-    -DBUILD_PYTHON_BINDINGS=OFF \
-    -DBUILD_TOOLS=OFF \
-    -DCMAKE_INSTALL_PREFIX="./install" \
+    -DHOST_BUILD_DIR="build_android_${ABI}" \
     ../
 
 echo "building..."

From 157a2bc014fa84e118d4c45b587d16aab9b0e354 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Wed, 11 Feb 2026 11:48:07 +0800
Subject: [PATCH 10/22] add cache

---
 .github/workflows/android_build.yml | 104 ++++++++++++++++++++++------
 1 file changed, 81 insertions(+), 23 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index ae0bc9f8..0c4f13c3 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -26,12 +26,21 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Cache dependencies
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.ccache
+          key: ${{ runner.os }}-dependencies-cache-${{ hashFiles('**/CMakeLists.txt', 'thirdparty/**') }}
+          restore-keys: |
+            ${{ runner.os }}-dependencies-cache-
+
       - name: Install dependencies
         run: |
           sudo apt-get update
           sudo apt-get install -y --no-install-recommends \
             cmake ninja-build git ca-certificates python3 \
-            build-essential make
+            build-essential make ccache
 
       - name: Setup Java 17
         uses: actions/setup-java@v4
@@ -48,12 +57,39 @@ jobs:
             # yes | sdkmanager --licenses
             sdkmanager "ndk;26.1.10909125"
 
+      - name: Cache host protoc build
+        uses: actions/cache@v3
+        with:
+          path: build-host
+          key: ${{ runner.os }}-host-protoc-${{ hashFiles('src/**', 'CMakeLists.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-host-protoc-
+
       - name: Use host env to compile protoc
         shell: bash
         run: |
           git submodule update --init
-          cmake -S . -B build-host -G Ninja
-          cmake --build build-host --target protoc --parallel
+          if [ ! -d "build-host" ]; then
+            # Setup ccache for host build
+            export CCACHE_BASEDIR="$GITHUB_WORKSPACE"
+            export CCACHE_NOHASHDIR=1
+            export CCACHE_SLOPPINESS=clang_index_store,file_stat_matches,include_file_mtime,locale,time_macros
+            
+            cmake -S . -B build-host -G Ninja \
+              -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+              -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+            cmake --build build-host --target protoc --parallel
+          else
+            echo "Using cached host protoc build"
+          fi
+
+      - name: Cache Android build
+        uses: actions/cache@v3
+        with:
+          path: build-android-${{ matrix.abi }}
+          key: ${{ runner.os }}-android-build-${{ matrix.abi }}-${{ hashFiles('src/**', 'CMakeLists.txt', 'cmake/**') }}
+          restore-keys: |
+            ${{ runner.os }}-android-build-${{ matrix.abi }}-
 
       - name: Configure (CMake)
         shell: bash
@@ -63,35 +99,57 @@ jobs:
           export ANDROID_SDK_ROOT="$ANDROID_HOME"
           export ANDROID_NDK_HOME="$ANDROID_SDK_ROOT/ndk/26.1.10909125"
 
-          cmake -S . -B build-android-${{ matrix.abi }} -G Ninja \
-            -DCMAKE_BUILD_TYPE=Release \
-            -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
-            -DANDROID_ABI=${{ matrix.abi }} \
-            -DANDROID_PLATFORM=android-${{ matrix.api }} \
-            -DANDROID_STL=c++_shared \
-            -DBUILD_PYTHON_BINDINGS=OFF \
-            -DBUILD_TOOLS=OFF \
-            -DGLOBAL_CC_PROTOBUF_PROTOC="$GITHUB_WORKSPACE/build-host/bin/protoc" \
+          # Setup ccache
+          export CCACHE_BASEDIR="$GITHUB_WORKSPACE"
+          export CCACHE_NOHASHDIR=1
+          export CCACHE_SLOPPINESS=clang_index_store,file_stat_matches,include_file_mtime,locale,time_macros
+          
+          if [ ! -d "build-android-${{ matrix.abi }}" ]; then
+            cmake -S . -B build-android-${{ matrix.abi }} -G Ninja \
+              -DCMAKE_BUILD_TYPE=Release \
+              -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
+              -DANDROID_ABI=${{ matrix.abi }} \
+              -DANDROID_PLATFORM=android-${{ matrix.api }} \
+              -DANDROID_STL=c++_shared \
+              -DBUILD_PYTHON_BINDINGS=OFF \
+              -DBUILD_TOOLS=OFF \
+              -DGLOBAL_CC_PROTOBUF_PROTOC="$GITHUB_WORKSPACE/build-host/bin/protoc" \
+              -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+              -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+          else
+            echo "Using cached Android build directory"
+          fi
 
       - name: Build
         shell: bash
         run: |
           cmake --build build-android-${{ matrix.abi }} --parallel
 
+      - name: Cache examples build
+        uses: actions/cache@v3
+        with:
+          path: examples/c++/build-android-examples-${{ matrix.abi }}
+          key: ${{ runner.os }}-examples-build-${{ matrix.abi }}-${{ hashFiles('examples/c++/**', 'CMakeLists.txt', 'src/**') }}
+          restore-keys: |
+            ${{ runner.os }}-examples-build-${{ matrix.abi }}-
+
       - name: Build examples
         shell: bash
         run: |
-          cd examples/c++
-          
-          cmake -S . -B  build-android-examples-${{ matrix.abi }} -D Ninja \
-            -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
-            -DANDROID_ABI=${{ matrix.abi }} \
-            -DANDROID_PLATFORM=android-${{ matrix.api }} \
-            -DANDROID_STL=c++_shared \
-            -DCMAKE_BUILD_TYPE=Release \
-            -DHOST_BUILD_DIR="build-android-${{ matrix.abi }}" \
-          
-          cmake --build build-android-examples-${{ matrix.abi }} --parallel
+          if [ ! -d "examples/c++/build-android-examples-${{ matrix.abi }}" ]; then
+            cmake -S examples/c++ -B examples/c++/build-android-examples-${{ matrix.abi }} -G Ninja \
+               -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
+               -DANDROID_ABI=${{ matrix.abi }} \
+               -DANDROID_PLATFORM=android-${{ matrix.api }} \
+               -DANDROID_STL=c++_shared \
+               -DCMAKE_BUILD_TYPE=Release \
+               -DHOST_BUILD_DIR="build-android-${{ matrix.abi }}" \
+               -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+               -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+            cmake --build examples/c++/build-android-examples-${{ matrix.abi }} --parallel
+          else
+            echo "Using cached examples build"
+          fi
 
       - name: Install ADB and setup Android emulator
         uses: reactivecircus/android-emulator-runner@v2

From 6af5c6341779539bce8531c080abb2ebdeadf086 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Wed, 11 Feb 2026 12:39:11 +0800
Subject: [PATCH 11/22] fix

---
 .github/workflows/android_build.yml | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index 0c4f13c3..a5efa721 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -91,7 +91,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-android-build-${{ matrix.abi }}-
 
-      - name: Configure (CMake)
+      - name: Configure and Build
         shell: bash
         run: |
           git submodule foreach --recursive 'git stash --include-untracked'
@@ -115,15 +115,12 @@ jobs:
               -DBUILD_TOOLS=OFF \
               -DGLOBAL_CC_PROTOBUF_PROTOC="$GITHUB_WORKSPACE/build-host/bin/protoc" \
               -DCMAKE_C_COMPILER_LAUNCHER=ccache \
-              -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+              -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+            cmake --build build-android-${{ matrix.abi }} --parallel
           else
             echo "Using cached Android build directory"
           fi
 
-      - name: Build
-        shell: bash
-        run: |
-          cmake --build build-android-${{ matrix.abi }} --parallel
 
       - name: Cache examples build
         uses: actions/cache@v3
@@ -145,7 +142,7 @@ jobs:
                -DCMAKE_BUILD_TYPE=Release \
                -DHOST_BUILD_DIR="build-android-${{ matrix.abi }}" \
                -DCMAKE_C_COMPILER_LAUNCHER=ccache \
-               -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+               -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
             cmake --build examples/c++/build-android-examples-${{ matrix.abi }} --parallel
           else
             echo "Using cached examples build"

From 4a24d0eecac50bc4fe4dffd725c8cec514149826 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Wed, 11 Feb 2026 14:52:32 +0800
Subject: [PATCH 12/22] add strip

---
 .github/workflows/android_build.yml |  1 +
 examples/c++/CMakeLists.txt         | 21 +++++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index a5efa721..ba537cc8 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -140,6 +140,7 @@ jobs:
                -DANDROID_PLATFORM=android-${{ matrix.api }} \
                -DANDROID_STL=c++_shared \
                -DCMAKE_BUILD_TYPE=Release \
+               -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON \
                -DHOST_BUILD_DIR="build-android-${{ matrix.abi }}" \
                -DCMAKE_C_COMPILER_LAUNCHER=ccache \
                -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
diff --git a/examples/c++/CMakeLists.txt b/examples/c++/CMakeLists.txt
index 13d6711c..37d42d60 100644
--- a/examples/c++/CMakeLists.txt
+++ b/examples/c++/CMakeLists.txt
@@ -155,3 +155,24 @@ add_executable(ailego-example ailego/main.cc)
 target_link_libraries(ailego-example PRIVATE
     zvec-ailego
 )
+
+# Strip symbols to reduce executable size
+if(CMAKE_BUILD_TYPE STREQUAL "Release" OR ANDROID)
+    add_custom_command(TARGET db-example POST_BUILD
+        COMMAND ${CMAKE_STRIP} "$<TARGET_FILE:db-example>"
+        COMMENT "Stripping symbols from db-example")
+    add_custom_command(TARGET core-example POST_BUILD
+        COMMAND ${CMAKE_STRIP} "$<TARGET_FILE:core-example>"
+        COMMENT "Stripping symbols from core-example")
+    add_custom_command(TARGET ailego-example POST_BUILD
+        COMMAND ${CMAKE_STRIP} "$<TARGET_FILE:ailego-example>"
+        COMMENT "Stripping symbols from ailego-example")
+endif()
+
+# Optimize for size
+if(CMAKE_BUILD_TYPE STREQUAL "Release" OR ANDROID)
+    set_property(TARGET db-example core-example ailego-example
+                 PROPERTY COMPILE_FLAGS "-Os")
+    set_property(TARGET db-example core-example ailego-example
+                 PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
+endif()

From 258c701fc3a8582e92870c35a17f2694304fd050 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Wed, 11 Feb 2026 15:46:04 +0800
Subject: [PATCH 13/22] fix

---
 .github/workflows/android_build.yml | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index ba537cc8..955f140f 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -158,24 +158,34 @@ jobs:
             # Wait for device to be ready
             adb wait-for-device
             
+            # Check file sizes before pushing
+            echo "Checking binary sizes:"
+            ls -lah examples/c++/build-android-examples-${{ matrix.abi }}/
+            
             # Push executables to device
             adb push examples/c++/build-android-examples-${{ matrix.abi }}/ailego-example /data/local/tmp/
             adb push examples/c++/build-android-examples-${{ matrix.abi }}/core-example /data/local/tmp/
             adb push examples/c++/build-android-examples-${{ matrix.abi }}/db-example /data/local/tmp/
             
             # Make executables executable
-            adb shell chmod +x /data/local/tmp/ailego-example
-            adb shell chmod +x /data/local/tmp/core-example
-            adb shell chmod +x /data/local/tmp/db-example
+            adb shell 'chmod 755 /data/local/tmp/ailego-example'
+            adb shell 'chmod 755 /data/local/tmp/core-example'
+            adb shell 'chmod 755 /data/local/tmp/db-example'
+            
+            # Verify file integrity
+            echo "File info on device:"
+            adb shell 'ls -la /data/local/tmp/ailego-example'
+            adb shell 'ls -la /data/local/tmp/core-example'
+            adb shell 'ls -la /data/local/tmp/db-example'
             
             echo "Running ailego example:"
-            adb shell 'cd /data/local/tmp/ && ./ailego-example'
+            adb shell 'cd /data/local/tmp && chmod +x ailego-example && ./ailego-example'
             echo "Exit code: $?"
             
             echo "Running core example:"
-            adb shell 'cd /data/local/tmp/ && ./core-example'
+            adb shell 'cd /data/local/tmp && chmod +x core-example && ./core-example'
             echo "Exit code: $?"
             
             echo "Running db example:"
-            adb shell 'cd /data/local/tmp/ && ./db-example'
+            adb shell 'cd /data/local/tmp && chmod +x db-example && ./db-example'
             echo "Exit code: $?"

From 5708305e5a359c1597ecd2c29154b9b806068d1d Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Wed, 11 Feb 2026 16:25:49 +0800
Subject: [PATCH 14/22] fix

---
 .github/workflows/android_build.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index 955f140f..0793e6b3 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -179,13 +179,13 @@ jobs:
             adb shell 'ls -la /data/local/tmp/db-example'
             
             echo "Running ailego example:"
-            adb shell 'cd /data/local/tmp && chmod +x ailego-example && ./ailego-example'
+            adb shell 'cd /data/local/tmp && ./ailego-example'
             echo "Exit code: $?"
             
             echo "Running core example:"
-            adb shell 'cd /data/local/tmp && chmod +x core-example && ./core-example'
+            adb shell 'cd /data/local/tmp && ./core-example'
             echo "Exit code: $?"
             
             echo "Running db example:"
-            adb shell 'cd /data/local/tmp && chmod +x db-example && ./db-example'
+            adb shell 'cd /data/local/tmp && ./db-example'
             echo "Exit code: $?"

From cbeda2df80d02de44768848f9274e89a85cd807d Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Wed, 11 Feb 2026 16:36:34 +0800
Subject: [PATCH 15/22] debug

---
 .github/workflows/android_build.yml | 24 +++++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index 0793e6b3..70d335ee 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -162,15 +162,33 @@ jobs:
             echo "Checking binary sizes:"
             ls -lah examples/c++/build-android-examples-${{ matrix.abi }}/
             
+            # Check device architecture
+            echo "Device architecture info:"
+            adb shell getprop ro.product.cpu.abi
+            adb shell getprop ro.product.cpu.abilist
+            adb shell uname -m
+            
+            # Check binary architecture (requires file command)
+            echo "Checking if file command is available:"
+            if command -v file >/dev/null 2>&1; then
+                file examples/c++/build-android-examples-${{ matrix.abi }}/ailego-example
+                file examples/c++/build-android-examples-${{ matrix.abi }}/core-example
+                file examples/c++/build-android-examples-${{ matrix.abi }}/db-example
+            else
+                echo "file command not available on host"
+                # Check ELF header manually
+                hexdump -C examples/c++/build-android-examples-${{ matrix.abi }}/ailego-example | head -1
+            fi
+            
             # Push executables to device
             adb push examples/c++/build-android-examples-${{ matrix.abi }}/ailego-example /data/local/tmp/
             adb push examples/c++/build-android-examples-${{ matrix.abi }}/core-example /data/local/tmp/
             adb push examples/c++/build-android-examples-${{ matrix.abi }}/db-example /data/local/tmp/
             
             # Make executables executable
-            adb shell 'chmod 755 /data/local/tmp/ailego-example'
-            adb shell 'chmod 755 /data/local/tmp/core-example'
-            adb shell 'chmod 755 /data/local/tmp/db-example'
+            adb shell 'chmod a+x /data/local/tmp/ailego-example'
+            adb shell 'chmod a+x /data/local/tmp/core-example'
+            adb shell 'chmod a+x /data/local/tmp/db-example'
             
             # Verify file integrity
             echo "File info on device:"

From d9100569230c80758efcb5411d7666b810bc41de Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Thu, 12 Feb 2026 10:26:37 +0800
Subject: [PATCH 16/22] fix

---
 .github/workflows/android_build.yml | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index 70d335ee..b7ffc7a6 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -153,7 +153,10 @@ jobs:
         uses: reactivecircus/android-emulator-runner@v2
         with:
           api-level: ${{ matrix.api }}
-          abi: ${{ matrix.abi }}
+          arch: ${{ matrix.abi }}
+          target: google_apis
+          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim
+          disable-animations: true
           script: |
             # Wait for device to be ready
             adb wait-for-device
@@ -164,21 +167,8 @@ jobs:
             
             # Check device architecture
             echo "Device architecture info:"
-            adb shell getprop ro.product.cpu.abi
-            adb shell getprop ro.product.cpu.abilist
-            adb shell uname -m
-            
-            # Check binary architecture (requires file command)
-            echo "Checking if file command is available:"
-            if command -v file >/dev/null 2>&1; then
-                file examples/c++/build-android-examples-${{ matrix.abi }}/ailego-example
-                file examples/c++/build-android-examples-${{ matrix.abi }}/core-example
-                file examples/c++/build-android-examples-${{ matrix.abi }}/db-example
-            else
-                echo "file command not available on host"
-                # Check ELF header manually
-                hexdump -C examples/c++/build-android-examples-${{ matrix.abi }}/ailego-example | head -1
-            fi
+            adb shell 'getprop ro.product.cpu.abi'
+            adb shell 'getprop ro.product.cpu.abilist'
             
             # Push executables to device
             adb push examples/c++/build-android-examples-${{ matrix.abi }}/ailego-example /data/local/tmp/

From a6df4ce0a5355da189687611be26be370be1be7f Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Thu, 12 Feb 2026 11:13:50 +0800
Subject: [PATCH 17/22] fix

---
 .github/workflows/android_build.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index b7ffc7a6..394014bb 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
       matrix:
         # abi: [arm64-v8a, armeabi-v7a, x86_64]
-        abi: [arm64-v8a]
+        abi: [x86_64]
         api: [21]
 
     steps:

From b0b0afa0b2375f24dafd9ce82eeb5889f56ec11a Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Thu, 12 Feb 2026 15:01:31 +0800
Subject: [PATCH 18/22] fix

---
 .github/workflows/android_build.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index 394014bb..c79568ba 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -155,8 +155,8 @@ jobs:
           api-level: ${{ matrix.api }}
           arch: ${{ matrix.abi }}
           target: google_apis
-          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim
-          disable-animations: true
+          # emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim
+          # disable-animations: true
           script: |
             # Wait for device to be ready
             adb wait-for-device

From b6221ec1559a5a14edb8dfe47ee75c588464c386 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Thu, 12 Feb 2026 15:39:06 +0800
Subject: [PATCH 19/22] fix

---
 .github/workflows/android_build.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index c79568ba..937cf6d6 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -154,7 +154,7 @@ jobs:
         with:
           api-level: ${{ matrix.api }}
           arch: ${{ matrix.abi }}
-          target: google_apis
+          # target: google_apis
           # emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim
           # disable-animations: true
           script: |

From c657d4ca1576f7d03f94da8d82a4b158a13bd37a Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Thu, 12 Feb 2026 16:19:37 +0800
Subject: [PATCH 20/22] fix

---
 .github/workflows/android_build.yml | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index 937cf6d6..2f7fed15 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -110,7 +110,7 @@ jobs:
               -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
               -DANDROID_ABI=${{ matrix.abi }} \
               -DANDROID_PLATFORM=android-${{ matrix.api }} \
-              -DANDROID_STL=c++_shared \
+              -DANDROID_STL=c++_static \
               -DBUILD_PYTHON_BINDINGS=OFF \
               -DBUILD_TOOLS=OFF \
               -DGLOBAL_CC_PROTOBUF_PROTOC="$GITHUB_WORKSPACE/build-host/bin/protoc" \
@@ -138,7 +138,7 @@ jobs:
                -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
                -DANDROID_ABI=${{ matrix.abi }} \
                -DANDROID_PLATFORM=android-${{ matrix.api }} \
-               -DANDROID_STL=c++_shared \
+               -DANDROID_STL=c++_static \
                -DCMAKE_BUILD_TYPE=Release \
                -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON \
                -DHOST_BUILD_DIR="build-android-${{ matrix.abi }}" \
@@ -176,9 +176,9 @@ jobs:
             adb push examples/c++/build-android-examples-${{ matrix.abi }}/db-example /data/local/tmp/
             
             # Make executables executable
-            adb shell 'chmod a+x /data/local/tmp/ailego-example'
-            adb shell 'chmod a+x /data/local/tmp/core-example'
-            adb shell 'chmod a+x /data/local/tmp/db-example'
+            adb shell 'chmod 755 /data/local/tmp/ailego-example'
+            adb shell 'chmod 755 /data/local/tmp/core-example'
+            adb shell 'chmod 755 /data/local/tmp/db-example'
             
             # Verify file integrity
             echo "File info on device:"

From f711c07c2a5961a05abdfcb5db84f630fe825f9e Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Thu, 12 Feb 2026 16:39:45 +0800
Subject: [PATCH 21/22] fix

---
 .github/workflows/android_build.yml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index 2f7fed15..e249825f 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -31,7 +31,7 @@ jobs:
         with:
           path: |
             ~/.ccache
-          key: ${{ runner.os }}-dependencies-cache-${{ hashFiles('**/CMakeLists.txt', 'thirdparty/**') }}
+          key: ${{ runner.os }}-dependencies-cache-${{ hashFiles('**/CMakeLists.txt', 'thirdparty/**') }}-stl-fix
           restore-keys: |
             ${{ runner.os }}-dependencies-cache-
 
@@ -61,7 +61,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: build-host
-          key: ${{ runner.os }}-host-protoc-${{ hashFiles('src/**', 'CMakeLists.txt') }}
+          key: ${{ runner.os }}-host-protoc-${{ hashFiles('src/**', 'CMakeLists.txt') }}-stl-fix
           restore-keys: |
             ${{ runner.os }}-host-protoc-
 
@@ -87,7 +87,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: build-android-${{ matrix.abi }}
-          key: ${{ runner.os }}-android-build-${{ matrix.abi }}-${{ hashFiles('src/**', 'CMakeLists.txt', 'cmake/**') }}
+          key: ${{ runner.os }}-android-build-${{ matrix.abi }}-${{ hashFiles('src/**', 'CMakeLists.txt', 'cmake/**') }}-stl-fix
           restore-keys: |
             ${{ runner.os }}-android-build-${{ matrix.abi }}-
 
@@ -126,7 +126,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: examples/c++/build-android-examples-${{ matrix.abi }}
-          key: ${{ runner.os }}-examples-build-${{ matrix.abi }}-${{ hashFiles('examples/c++/**', 'CMakeLists.txt', 'src/**') }}
+          key: ${{ runner.os }}-examples-build-${{ matrix.abi }}-${{ hashFiles('examples/c++/**', 'CMakeLists.txt', 'src/**') }}-stl-fix
           restore-keys: |
             ${{ runner.os }}-examples-build-${{ matrix.abi }}-
 

From 4df824d135419c157cfcc47bd3606ea40f7fee57 Mon Sep 17 00:00:00 2001
From: "xufeihong.xfh" <xufeihong.xfh@alibaba-inc.com>
Date: Thu, 12 Feb 2026 17:08:10 +0800
Subject: [PATCH 22/22] fix

---
 .github/workflows/android_build.yml | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/android_build.yml b/.github/workflows/android_build.yml
index e249825f..82667254 100644
--- a/.github/workflows/android_build.yml
+++ b/.github/workflows/android_build.yml
@@ -87,9 +87,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: build-android-${{ matrix.abi }}
-          key: ${{ runner.os }}-android-build-${{ matrix.abi }}-${{ hashFiles('src/**', 'CMakeLists.txt', 'cmake/**') }}-stl-fix
-          restore-keys: |
-            ${{ runner.os }}-android-build-${{ matrix.abi }}-
+          key: ${{ runner.os }}-android-build-${{ matrix.abi }}-${{ hashFiles('src/**', 'CMakeLists.txt', 'cmake/**', 'thirdparty/**') }}-stl-fix-2
 
       - name: Configure and Build
         shell: bash
@@ -126,9 +124,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: examples/c++/build-android-examples-${{ matrix.abi }}
-          key: ${{ runner.os }}-examples-build-${{ matrix.abi }}-${{ hashFiles('examples/c++/**', 'CMakeLists.txt', 'src/**') }}-stl-fix
-          restore-keys: |
-            ${{ runner.os }}-examples-build-${{ matrix.abi }}-
+          key: ${{ runner.os }}-examples-build-${{ matrix.abi }}-${{ hashFiles('examples/c++/**', 'CMakeLists.txt', 'src/**') }}-stl-fix-2
 
       - name: Build examples
         shell: bash