feat: Add Yocto build support for 32-bit and 64-bit architectures to examples, including new build scripts, CMake logic, and documentation.

README.md

@@ -86,6 +86,24 @@ git clone https://github.com/Amlogic-NN/amlnn-toolkit.git ../amlnn-toolkit
 
 ​     Each **example** directory contains a **build-android.sh** and **build-linux.sh** script. For compilation steps, refer to **Chapter 4** of the **README.md** file in the corresponding example directory.
 
+## Android Complication
+
+Android compilation requires the NDK toolchain. The build scripts look for the NDK path via the following environment variables (in priority order):
+
+| Variable | Description |
+| -------- | ----------- |
+| `ANDROID_NDK_PATH` | Preferred variable |
+| `ANDROID_NDK` | Fallback |
+| `ANDROID_NDK_HOME` | Fallback |
+
+Set one of them before building, for example:
+
+```bash
+export ANDROID_NDK_PATH=/path/to/android-ndk-r25c
+```
+
+> **Note:** NDK **r25c** is recommended. Download: https://github.com/android/ndk/wiki/Unsupported-Downloads
+
 To build **all examples at once**, use the top-level batch script:
 
 ```bash
@@ -98,7 +116,46 @@ AMLNN_HOME=/path/to/amlnn-toolkit ./build-android-all.sh
 The script automatically cleans the previous build, resolves the AMLNN SDK via the priority rules above, and prints a build summary at the end.
 
 
+## Yocto Compilation
 
+Each example's `build-linux.sh` also supports **Yocto** mode via the `-m yocto` flag.
+
+**Dependency:** A Yocto SDK (Poky). Set the path via environment variable or `-s` flag:
+
+```bash
+export YOCTO_SDK_ROOT=/path/to/poky/sdk
+```
+
+The toolchain file is shared across all demos at `examples/cmake/yocto-toolchain.cmake`.
+
+**Build a single demo:**
+
+```bash
+cd examples/yolox/cpp
+
+# 64-bit (default)
+./build-linux.sh -m yocto -s /path/to/poky/sdk
+
+# 32-bit
+./build-linux.sh -m yocto -b 32 -s /path/to/poky/32bit-sdk
+```
+
+**Build all demos at once:**
+
+```bash
+cd examples
+
+# 64-bit
+./build-linux-all.sh -m yocto -s /path/to/poky/sdk
+
+# 32-bit
+./build-linux-all.sh -m yocto -b 32 -s /path/to/poky/32bit-sdk
+
+# Clean yocto build artifacts
+./clean-linux-all.sh -m yocto
+```
+
+> **Note:** The `LLMs` demo is automatically excluded from the batch build scripts.
 
 # **Release Notes**
 

cmake/FindAMLNN.cmake

@@ -43,7 +43,11 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Android")
         set(AMLNN_LIBRARY_DIR "${AMLNN_NNSDK_ROOT}/android/armeabi-v7a")
     endif()
 elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
-    set(AMLNN_LIBRARY_DIR "${AMLNN_NNSDK_ROOT}/linux/yocto/aarch64-poky-linux")
+    if(DEFINED ARCH_BITS AND ARCH_BITS STREQUAL "32")
+        set(AMLNN_LIBRARY_DIR "${AMLNN_NNSDK_ROOT}/linux/yocto/arm-poky-linux")
+    else()
+        set(AMLNN_LIBRARY_DIR "${AMLNN_NNSDK_ROOT}/linux/yocto/aarch64-poky-linux")
+    endif()
 else()
     set(AMLNN_LIBRARY_DIR "${AMLNN_NNSDK_ROOT}/linux/yocto/aarch64-poky-linux")
 endif()

examples/build-linux-all.sh

@@ -0,0 +1,209 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2024–2025 Amlogic, Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+usage() {
+    echo "Usage: $0 [-m <mode>] [-b <arch_bits>] [-s <yocto_sdk_root>] [-t <toolchain_file>]"
+    echo "  -m <mode>      : Build mode: 'linux' or 'yocto' (default: linux)"
+    echo "  -b <arch_bits> : Arch bits for yocto mode: 32 or 64 (default: 64)"
+    echo "  -s <sdk_root>  : Yocto SDK root path (overrides YOCTO_SDK_ROOT env var)"
+    echo "  -t <toolchain> : CMake toolchain file (overrides TOOLCHAIN_FILE env var)"
+    echo "  -h             : Show this help message"
+    exit 1
+}
+
+# Default values
+BUILD_MODE=linux
+TARGET_ARCH=aarch64
+ARCH_BITS=64
+CLI_SDK_ROOT=""
+CLI_TOOLCHAIN_FILE=""
+
+# Parse arguments
+while getopts 'm:b:s:t:h' opt; do
+  case "$opt" in
+    m)
+      BUILD_MODE=$OPTARG
+      ;;
+    a)
+      TARGET_ARCH=$OPTARG
+      ;;
+    b)
+      ARCH_BITS=$OPTARG
+      ;;
+    s)
+      CLI_SDK_ROOT=$OPTARG
+      ;;
+    t)
+      CLI_TOOLCHAIN_FILE=$OPTARG
+      ;;
+    h)
+      usage
+      ;;
+    *)
+      usage
+      ;;
+  esac
+done
+
+SCRIPT_DIR=$(cd "$(dirname $0)" && pwd)
+
+# ---------------------------------------------------------------------------
+# AMLNN SDK discovery (same logic as build-android-all.sh)
+# ---------------------------------------------------------------------------
+if [ -n "$AMLNN_HOME" ]; then
+    if [ ! -d "$AMLNN_HOME/nn_runtime" ]; then
+        echo "Error: AMLNN_HOME is set to '$AMLNN_HOME' but nn_runtime was not found there."
+        echo "Please check your AMLNN_HOME path."
+        exit 1
+    fi
+    echo "Priority 1: Using AMLNN_HOME from environment: $AMLNN_HOME"
+elif [ -d "${SCRIPT_DIR}/../../amlnn-toolkit/nn_runtime" ]; then
+    export AMLNN_HOME="$(cd "${SCRIPT_DIR}/../../amlnn-toolkit" && pwd)"
+    echo "Priority 3: Using sibling amlnn-toolkit as fallback: $AMLNN_HOME"
+elif [ -d "${SCRIPT_DIR}/../../amlnn-toolkit-a/nn_runtime" ]; then
+    export AMLNN_HOME="$(cd "${SCRIPT_DIR}/../../amlnn-toolkit-a" && pwd)"
+    echo "Priority 3: Using sibling amlnn-toolkit-a as fallback: $AMLNN_HOME"
+else
+    echo ""
+    echo "Error: AMLNN SDK not found."
+    echo ""
+    echo "Please do one of the following:"
+    echo ""
+    echo "  Option A (recommended) – set AMLNN_HOME:"
+    echo "    export AMLNN_HOME=/path/to/amlnn-toolkit"
+    echo "    ./build-linux-all.sh"
+    echo ""
+    echo "  Option B – clone amlnn-toolkit as a sibling directory:"
+    echo "    git clone https://github.com/Amlogic-NN/amlnn-toolkit.git ../../amlnn-toolkit"
+    echo "    ./build-linux-all.sh"
+    echo ""
+    exit 1
+fi
+
+# ---------------------------------------------------------------------------
+# Demos to exclude (directory name under examples/)
+# ---------------------------------------------------------------------------
+EXCLUDE_DIRS=("LLMs")
+
+is_excluded() {
+    local demo="$1"
+    for excl in "${EXCLUDE_DIRS[@]}"; do
+        if [[ "$demo" == *"${excl}"* ]]; then
+            return 0
+        fi
+    done
+    return 1
+}
+
+echo "============================================"
+echo "Building all Linux examples"
+echo "BUILD_MODE: ${BUILD_MODE}"
+if [[ "${BUILD_MODE}" == "yocto" ]]; then
+    echo "ARCH_BITS: ${ARCH_BITS}-bit"
+    echo "YOCTO_SDK_ROOT: ${CLI_SDK_ROOT:-${YOCTO_SDK_ROOT:-/data/yuandian/tools/poky/4.0.20}}"
+else
+    echo "TARGET_ARCH: ${TARGET_ARCH}"
+fi
+echo "EXCLUDED: ${EXCLUDE_DIRS[*]}"
+echo "============================================"
+
+# Dynamically discover all examples that have a build-linux.sh
+mapfile -t BUILD_SCRIPTS < <(find "${SCRIPT_DIR}" -mindepth 3 -maxdepth 3 -name "build-linux.sh" | sort)
+
+EXAMPLES=()
+for script in "${BUILD_SCRIPTS[@]}"; do
+    rel=$(realpath --relative-to="${SCRIPT_DIR}" "$(dirname "$script")")
+    EXAMPLES+=("$rel")
+done
+
+FAILED=()
+SUCCEEDED=()
+SKIPPED=()
+
+for EXAMPLE in "${EXAMPLES[@]}"; do
+    # Skip excluded demos
+    if is_excluded "${EXAMPLE}"; then
+        SKIPPED+=("${EXAMPLE}")
+        echo ""
+        echo "[SKIP] ${EXAMPLE} (excluded)"
+        continue
+    fi
+
+    EXAMPLE_DIR="${SCRIPT_DIR}/${EXAMPLE}"
+    BUILD_SCRIPT="${EXAMPLE_DIR}/build-linux.sh"
+
+    if [ ! -f "${BUILD_SCRIPT}" ]; then
+        echo "WARNING: No build-linux.sh found for ${EXAMPLE}, skipping."
+        continue
+    fi
+
+    echo ""
+    echo "--------------------------------------------"
+    echo "Building: ${EXAMPLE}"
+    echo "--------------------------------------------"
+
+    # Clean previous build to avoid stale CMake cache
+    if [[ "${BUILD_MODE}" == "yocto" ]]; then
+        echo "Cleaning: ${EXAMPLE_DIR}/build/yocto/${ARCH_BITS}"
+        rm -rf "${EXAMPLE_DIR}/build/yocto/${ARCH_BITS}"
+    else
+        echo "Cleaning: ${EXAMPLE_DIR}/build/linux"
+        rm -rf "${EXAMPLE_DIR}/build/linux"
+    fi
+
+    # Build the extra args to forward to individual build-linux.sh
+    EXTRA_ARGS=(-m "${BUILD_MODE}")
+    if [[ "${BUILD_MODE}" == "yocto" ]]; then
+        EXTRA_ARGS+=(-b "${ARCH_BITS}")
+        [[ -n "${CLI_SDK_ROOT}" ]]      && EXTRA_ARGS+=(-s "${CLI_SDK_ROOT}")
+        [[ -n "${CLI_TOOLCHAIN_FILE}" ]] && EXTRA_ARGS+=(-t "${CLI_TOOLCHAIN_FILE}")
+    else
+        EXTRA_ARGS+=(-a "${TARGET_ARCH}")
+    fi
+
+    if bash "${BUILD_SCRIPT}" "${EXTRA_ARGS[@]}"; then
+        SUCCEEDED+=("${EXAMPLE}")
+        echo "[SUCCESS] ${EXAMPLE}"
+    else
+        FAILED+=("${EXAMPLE}")
+        echo "[FAILED] ${EXAMPLE}"
+    fi
+done
+
+echo ""
+echo "============================================"
+echo "Build Summary"
+echo "============================================"
+echo "Succeeded (${#SUCCEEDED[@]}):"
+for E in "${SUCCEEDED[@]}"; do echo "  - $E"; done
+
+if [ ${#SKIPPED[@]} -gt 0 ]; then
+    echo ""
+    echo "Skipped (${#SKIPPED[@]}):"
+    for E in "${SKIPPED[@]}"; do echo "  - $E"; done
+fi
+
+if [ ${#FAILED[@]} -gt 0 ]; then
+    echo ""
+    echo "Failed (${#FAILED[@]}):"
+    for E in "${FAILED[@]}"; do echo "  - $E"; done
+    exit 1
+fi
+
+echo ""
+echo "All examples built successfully!"

examples/clean-linux-all.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2024–2025 Amlogic, Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+usage() {
+    echo "Usage: $0 [-m <mode>]"
+    echo "  -m <mode> : What to clean: 'linux', 'yocto', or 'all' (default: all)"
+    echo "  -h        : Show this help message"
+    exit 1
+}
+
+# Default values
+CLEAN_MODE=all
+
+# Parse arguments
+while getopts 'm:h' opt; do
+  case "$opt" in
+    m)
+      CLEAN_MODE=$OPTARG
+      ;;
+    h)
+      usage
+      ;;
+    *)
+      usage
+      ;;
+  esac
+done
+
+SCRIPT_DIR=$(cd "$(dirname $0)" && pwd)
+
+case "${CLEAN_MODE}" in
+  linux)
+    echo "Cleaning all Linux build directories..."
+    find "${SCRIPT_DIR}" -type d -path "*/build/linux" | while read dir; do
+        echo "  rm -rf ${dir}"
+        rm -rf "${dir}"
+    done
+    ;;
+  yocto)
+    echo "Cleaning all Yocto build directories..."
+    find "${SCRIPT_DIR}" -type d -path "*/build/yocto" | while read dir; do
+        echo "  rm -rf ${dir}"
+        rm -rf "${dir}"
+    done
+    ;;
+  all)
+    echo "Cleaning all Linux and Yocto build directories..."
+    find "${SCRIPT_DIR}" -type d \( -path "*/build/linux" -o -path "*/build/yocto" \) | while read dir; do
+        echo "  rm -rf ${dir}"
+        rm -rf "${dir}"
+    done
+    ;;
+  *)
+    echo "Unknown mode: ${CLEAN_MODE}" >&2
+    usage
+    ;;
+esac
+
+echo "Done."

examples/cmake/yocto-toolchain.cmake

@@ -0,0 +1,71 @@
+# Yocto cross-compilation toolchain
+#
+# Required cache variables (pass via -D):
+#   YOCTO_SDK_ROOT  - Yocto SDK root dir (contains sysroots/)
+#   ARCH_BITS       - 32 or 64
+#
+# Example:
+#   cmake -DCMAKE_TOOLCHAIN_FILE=cmake/yocto-toolchain.cmake \
+#         -DYOCTO_SDK_ROOT=/opt/poky/4.0.20 \
+#         -DARCH_BITS=64 ...
+
+set(CMAKE_SYSTEM_NAME Linux)
+
+# Fallback to environment variables if not defined via -D
+if(NOT DEFINED YOCTO_SDK_ROOT AND DEFINED ENV{YOCTO_SDK_ROOT})
+    set(YOCTO_SDK_ROOT "$ENV{YOCTO_SDK_ROOT}")
+endif()
+
+if(NOT DEFINED ARCH_BITS AND DEFINED ENV{ARCH_BITS})
+    set(ARCH_BITS "$ENV{ARCH_BITS}")
+endif()
+
+# Mandatory check
+if(NOT DEFINED YOCTO_SDK_ROOT)
+    message(FATAL_ERROR "YOCTO_SDK_ROOT must point to the Yocto SDK root directory")
+endif()
+
+if(NOT DEFINED ARCH_BITS)
+    message(FATAL_ERROR "ARCH_BITS must be set to 32 or 64")
+endif()
+
+# Propagate these variables to try_compile sub-projects
+list(APPEND CMAKE_TRY_COMPILE_PLATFORM_VARIABLES YOCTO_SDK_ROOT ARCH_BITS)
+
+set(_HOST_SYSROOT "${YOCTO_SDK_ROOT}/sysroots/x86_64-pokysdk-linux")
+if(NOT IS_DIRECTORY "${_HOST_SYSROOT}")
+    message(FATAL_ERROR "Yocto host sysroot not found: ${_HOST_SYSROOT}")
+endif()
+
+if(ARCH_BITS EQUAL 32)
+    set(_TARGET_SYSROOT "${YOCTO_SDK_ROOT}/sysroots/armv7at2hf-neon-poky-linux-gnueabi")
+    set(_TRIPLE        "arm-poky-linux-gnueabi")
+    set(_ARCH_FLAGS    "-march=armv7-a -marm -mfpu=vfp -mfloat-abi=hard")
+elseif(ARCH_BITS EQUAL 64)
+    set(_TARGET_SYSROOT "${YOCTO_SDK_ROOT}/sysroots/armv8a-poky-linux")
+    set(_TRIPLE        "aarch64-poky-linux")
+    set(_ARCH_FLAGS    "")
+else()
+    message(FATAL_ERROR "Unsupported ARCH_BITS: ${ARCH_BITS} (expected 32 or 64)")
+endif()
+
+if(NOT IS_DIRECTORY "${_TARGET_SYSROOT}")
+    message(FATAL_ERROR "Yocto target sysroot not found: ${_TARGET_SYSROOT}")
+endif()
+
+set(CMAKE_C_COMPILER   "${_HOST_SYSROOT}/usr/bin/${_TRIPLE}/${_TRIPLE}-gcc")
+set(CMAKE_CXX_COMPILER "${_HOST_SYSROOT}/usr/bin/${_TRIPLE}/${_TRIPLE}-g++")
+
+set(CMAKE_SYSROOT               "${_TARGET_SYSROOT}")
+set(CMAKE_C_FLAGS_INIT          "--sysroot=${_TARGET_SYSROOT} ${_ARCH_FLAGS}")
+set(CMAKE_CXX_FLAGS_INIT        "--sysroot=${_TARGET_SYSROOT} ${_ARCH_FLAGS}")
+set(CMAKE_EXE_LINKER_FLAGS_INIT "--sysroot=${_TARGET_SYSROOT}")
+set(CMAKE_SHARED_LINKER_FLAGS_INIT "--sysroot=${_TARGET_SYSROOT}")
+
+set(CMAKE_FIND_ROOT_PATH              "${_TARGET_SYSROOT}")
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+
+# Expose ARCH_BITS and triple for CMakeLists.txt to use
+set(YOCTO_CROSS_TRIPLE "${_TRIPLE}" CACHE INTERNAL "")

examples/ppocr-det/cpp/build-linux.sh

@@ -18,21 +18,41 @@ set -e
 #
 
 usage() {
-    echo "Usage: $0 [-a <target_arch>]"
+    echo "Usage: $0 [-m <mode>] [-a <target_arch>] [-b <arch_bits>] [-s <yocto_sdk_root>] [-t <toolchain_file>]"
-    echo "  -a <target_arch> : Target architecture (default: aarch64)"
+    echo "  -m <mode>      : Build mode: 'linux' or 'yocto' (default: linux)"
-    echo "  -h               : Show this help message"
+    echo "  -a <target>    : Target arch for linux mode (default: aarch64)"
+    echo "  -b <arch_bits> : Arch bits for yocto mode: 32 or 64 (default: 64)"
+    echo "  -s <sdk_root>  : Yocto SDK root path (overrides YOCTO_SDK_ROOT env var)"
+    echo "  -t <toolchain> : CMake toolchain file (overrides TOOLCHAIN_FILE env var)"
+    echo "  -h             : Show this help message"
     exit 1
 }
 
 # Default values
+BUILD_MODE=linux
 TARGET_ARCH=aarch64
+ARCH_BITS=64
+CLI_SDK_ROOT=""
+CLI_TOOLCHAIN_FILE=""
 
 # Parse arguments
-while getopts 'a:h' opt; do
+while getopts 'm:a:b:s:t:h' opt; do
   case "$opt" in
+    m)
+      BUILD_MODE=$OPTARG
+      ;;
     a)
       TARGET_ARCH=$OPTARG
       ;;
+    b)
+      ARCH_BITS=$OPTARG
+      ;;
+    s)
+      CLI_SDK_ROOT=$OPTARG
+      ;;
+    t)
+      CLI_TOOLCHAIN_FILE=$OPTARG
+      ;;
     h)
       usage
       ;;
@@ -42,6 +62,77 @@ while getopts 'a:h' opt; do
   esac
 done
 
+ROOT_PWD=$(cd "$(dirname $0)" && pwd)
+
+# ===========================================================================
+# Yocto build
+# ===========================================================================
+if [[ "${BUILD_MODE}" == "yocto" ]]; then
+
+    if [[ "${ARCH_BITS}" != "32" && "${ARCH_BITS}" != "64" ]]; then
+        echo "Unsupported ARCH_BITS \"${ARCH_BITS}\". Must be 32 or 64." >&2
+        exit 1
+    fi
+
+    # Configurable via environment variables (CLI args > env vars > defaults)
+    CMAKE_BIN="${CMAKE_BIN:-cmake}"
+    YOCTO_SDK_ROOT="${CLI_SDK_ROOT:-${YOCTO_SDK_ROOT:-/data/yuandian/tools/poky/4.0.20}}"
+    TOOLCHAIN_FILE="${CLI_TOOLCHAIN_FILE:-${TOOLCHAIN_FILE:-${ROOT_PWD}/../../cmake/yocto-toolchain.cmake}}"
+
+    # Export variables for CMake
+    export YOCTO_SDK_ROOT
+    export ARCH_BITS
+
+    BUILD_DIR="${ROOT_PWD}/build/yocto/${ARCH_BITS}"
+
+    echo "==> Building Yocto ${ARCH_BITS}-bit"
+    echo "    toolchain : ${TOOLCHAIN_FILE}"
+    echo "    SDK root  : ${YOCTO_SDK_ROOT}"
+    echo "    BUILD_DIR : ${BUILD_DIR}"
+
+    mkdir -p "${BUILD_DIR}"
+    rm -rf "${BUILD_DIR}"
+
+    # Select OpenCV based on target architecture
+    if [[ "${ARCH_BITS}" == "32" ]]; then
+        OPENCV_DIR="${ROOT_PWD}/../../../dependency/opencv/opencv-linux-armhf/share/OpenCV"
+    else
+        OPENCV_DIR="${ROOT_PWD}/../../../dependency/opencv/opencv-linux-aarch64/share/OpenCV"
+    fi
+
+    "${CMAKE_BIN}" \
+        -S "${ROOT_PWD}/src" \
+        -B "${BUILD_DIR}" \
+        -DCMAKE_TOOLCHAIN_FILE="${TOOLCHAIN_FILE}" \
+        -DYOCTO_SDK_ROOT="${YOCTO_SDK_ROOT}" \
+        -DARCH_BITS="${ARCH_BITS}" \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DOpenCV_DIR="${OPENCV_DIR}"
+
+    "${CMAKE_BIN}" --build "${BUILD_DIR}" --config Release
+
+    # Strip (best-effort)
+    HOST_SYSROOT="${YOCTO_SDK_ROOT}/sysroots/x86_64-pokysdk-linux"
+    if [[ "${ARCH_BITS}" == "32" ]]; then
+        CROSS_TRIPLE="arm-poky-linux-gnueabi"
+    else
+        CROSS_TRIPLE="aarch64-poky-linux"
+    fi
+    STRIP_TOOL="${HOST_SYSROOT}/usr/bin/${CROSS_TRIPLE}/${CROSS_TRIPLE}-strip"
+    if [[ -x "${STRIP_TOOL}" ]]; then
+        "${STRIP_TOOL}" --strip-unneeded "${BUILD_DIR}/paddleocr_det_demo"
+    else
+        echo "warning: strip tool not found; keeping debug info." >&2
+    fi
+
+    echo "Build complete. Executable in ${BUILD_DIR}/paddleocr_det_demo"
+    exit 0
+fi
+
+# ===========================================================================
+# Standard Linux cross-compile build
+# ===========================================================================
+
 # Default to aarch64-linux-gnu if GCC_COMPILER is not set
 GCC_COMPILER=${GCC_COMPILER:-aarch64-linux-gnu}
 
@@ -57,7 +148,6 @@ if ! command -v ${CC} &> /dev/null; then
     exit 1
 fi
 
-ROOT_PWD=$(cd "$(dirname $0)" && pwd)
 BUILD_DIR=${ROOT_PWD}/build/linux
 
 echo "Building for Linux..."

examples/yoloe/cpp/build-linux.sh

@@ -18,21 +18,41 @@ set -e
 #
 
 usage() {
-    echo "Usage: $0 [-a <target_arch>]"
+    echo "Usage: $0 [-m <mode>] [-a <target_arch>] [-b <arch_bits>] [-s <yocto_sdk_root>] [-t <toolchain_file>]"
-    echo "  -a <target_arch> : Target architecture (default: aarch64)"
+    echo "  -m <mode>      : Build mode: 'linux' or 'yocto' (default: linux)"
-    echo "  -h               : Show this help message"
+    echo "  -a <target>    : Target arch for linux mode (default: aarch64)"
+    echo "  -b <arch_bits> : Arch bits for yocto mode: 32 or 64 (default: 64)"
+    echo "  -s <sdk_root>  : Yocto SDK root path (overrides YOCTO_SDK_ROOT env var)"
+    echo "  -t <toolchain> : CMake toolchain file (overrides TOOLCHAIN_FILE env var)"
+    echo "  -h             : Show this help message"
     exit 1
 }
 
 # Default values
+BUILD_MODE=linux
 TARGET_ARCH=aarch64
+ARCH_BITS=64
+CLI_SDK_ROOT=""
+CLI_TOOLCHAIN_FILE=""
 
 # Parse arguments
-while getopts 'a:h' opt; do
+while getopts 'm:a:b:s:t:h' opt; do
   case "$opt" in
+    m)
+      BUILD_MODE=$OPTARG
+      ;;
     a)
       TARGET_ARCH=$OPTARG
       ;;
+    b)
+      ARCH_BITS=$OPTARG
+      ;;
+    s)
+      CLI_SDK_ROOT=$OPTARG
+      ;;
+    t)
+      CLI_TOOLCHAIN_FILE=$OPTARG
+      ;;
     h)
       usage
       ;;
@@ -42,6 +62,77 @@ while getopts 'a:h' opt; do
   esac
 done
 
+ROOT_PWD=$(cd "$(dirname $0)" && pwd)
+
+# ===========================================================================
+# Yocto build
+# ===========================================================================
+if [[ "${BUILD_MODE}" == "yocto" ]]; then
+
+    if [[ "${ARCH_BITS}" != "32" && "${ARCH_BITS}" != "64" ]]; then
+        echo "Unsupported ARCH_BITS \"${ARCH_BITS}\". Must be 32 or 64." >&2
+        exit 1
+    fi
+
+    # Configurable via environment variables (CLI args > env vars > defaults)
+    CMAKE_BIN="${CMAKE_BIN:-cmake}"
+    YOCTO_SDK_ROOT="${CLI_SDK_ROOT:-${YOCTO_SDK_ROOT:-/data/yuandian/tools/poky/4.0.20}}"
+    TOOLCHAIN_FILE="${CLI_TOOLCHAIN_FILE:-${TOOLCHAIN_FILE:-${ROOT_PWD}/../../cmake/yocto-toolchain.cmake}}"
+
+    # Export variables for CMake
+    export YOCTO_SDK_ROOT
+    export ARCH_BITS
+
+    BUILD_DIR="${ROOT_PWD}/build/yocto/${ARCH_BITS}"
+
+    echo "==> Building Yocto ${ARCH_BITS}-bit"
+    echo "    toolchain : ${TOOLCHAIN_FILE}"
+    echo "    SDK root  : ${YOCTO_SDK_ROOT}"
+    echo "    BUILD_DIR : ${BUILD_DIR}"
+
+    mkdir -p "${BUILD_DIR}"
+    rm -rf "${BUILD_DIR}"
+
+    # Select OpenCV based on target architecture
+    if [[ "${ARCH_BITS}" == "32" ]]; then
+        OPENCV_DIR="${ROOT_PWD}/../../../dependency/opencv/opencv-linux-armhf/share/OpenCV"
+    else
+        OPENCV_DIR="${ROOT_PWD}/../../../dependency/opencv/opencv-linux-aarch64/share/OpenCV"
+    fi
+
+    "${CMAKE_BIN}" \
+        -S "${ROOT_PWD}/src" \
+        -B "${BUILD_DIR}" \
+        -DCMAKE_TOOLCHAIN_FILE="${TOOLCHAIN_FILE}" \
+        -DYOCTO_SDK_ROOT="${YOCTO_SDK_ROOT}" \
+        -DARCH_BITS="${ARCH_BITS}" \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DOpenCV_DIR="${OPENCV_DIR}"
+
+    "${CMAKE_BIN}" --build "${BUILD_DIR}" --config Release
+
+    # Strip (best-effort)
+    HOST_SYSROOT="${YOCTO_SDK_ROOT}/sysroots/x86_64-pokysdk-linux"
+    if [[ "${ARCH_BITS}" == "32" ]]; then
+        CROSS_TRIPLE="arm-poky-linux-gnueabi"
+    else
+        CROSS_TRIPLE="aarch64-poky-linux"
+    fi
+    STRIP_TOOL="${HOST_SYSROOT}/usr/bin/${CROSS_TRIPLE}/${CROSS_TRIPLE}-strip"
+    if [[ -x "${STRIP_TOOL}" ]]; then
+        "${STRIP_TOOL}" --strip-unneeded "${BUILD_DIR}/yoloe_demo"
+    else
+        echo "warning: strip tool not found; keeping debug info." >&2
+    fi
+
+    echo "Build complete. Executable in ${BUILD_DIR}/yoloe_demo"
+    exit 0
+fi
+
+# ===========================================================================
+# Standard Linux cross-compile build
+# ===========================================================================
+
 # Default to aarch64-linux-gnu if GCC_COMPILER is not set
 GCC_COMPILER=${GCC_COMPILER:-aarch64-linux-gnu}
 
@@ -57,7 +148,6 @@ if ! command -v ${CC} &> /dev/null; then
     exit 1
 fi
 
-ROOT_PWD=$(cd "$(dirname $0)" && pwd)
 BUILD_DIR=${ROOT_PWD}/build/linux
 
 echo "Building for Linux..."

examples/yolov8/cpp/build-linux.sh

@@ -18,21 +18,41 @@ set -e
 #
 
 usage() {
-    echo "Usage: $0 [-a <target_arch>]"
+    echo "Usage: $0 [-m <mode>] [-a <target_arch>] [-b <arch_bits>] [-s <yocto_sdk_root>] [-t <toolchain_file>]"
-    echo "  -a <target_arch> : Target architecture (default: aarch64)"
+    echo "  -m <mode>      : Build mode: 'linux' or 'yocto' (default: linux)"
-    echo "  -h               : Show this help message"
+    echo "  -a <target>    : Target arch for linux mode (default: aarch64)"
+    echo "  -b <arch_bits> : Arch bits for yocto mode: 32 or 64 (default: 64)"
+    echo "  -s <sdk_root>  : Yocto SDK root path (overrides YOCTO_SDK_ROOT env var)"
+    echo "  -t <toolchain> : CMake toolchain file (overrides TOOLCHAIN_FILE env var)"
+    echo "  -h             : Show this help message"
     exit 1
 }
 
 # Default values
+BUILD_MODE=linux
 TARGET_ARCH=aarch64
+ARCH_BITS=64
+CLI_SDK_ROOT=""
+CLI_TOOLCHAIN_FILE=""
 
 # Parse arguments
-while getopts 'a:h' opt; do
+while getopts 'm:a:b:s:t:h' opt; do
   case "$opt" in
+    m)
+      BUILD_MODE=$OPTARG
+      ;;
     a)
       TARGET_ARCH=$OPTARG
       ;;
+    b)
+      ARCH_BITS=$OPTARG
+      ;;
+    s)
+      CLI_SDK_ROOT=$OPTARG
+      ;;
+    t)
+      CLI_TOOLCHAIN_FILE=$OPTARG
+      ;;
     h)
       usage
       ;;
@@ -42,6 +62,77 @@ while getopts 'a:h' opt; do
   esac
 done
 
+ROOT_PWD=$(cd "$(dirname $0)" && pwd)
+
+# ===========================================================================
+# Yocto build
+# ===========================================================================
+if [[ "${BUILD_MODE}" == "yocto" ]]; then
+
+    if [[ "${ARCH_BITS}" != "32" && "${ARCH_BITS}" != "64" ]]; then
+        echo "Unsupported ARCH_BITS \"${ARCH_BITS}\". Must be 32 or 64." >&2
+        exit 1
+    fi
+
+    # Configurable via environment variables (CLI args > env vars > defaults)
+    CMAKE_BIN="${CMAKE_BIN:-cmake}"
+    YOCTO_SDK_ROOT="${CLI_SDK_ROOT:-${YOCTO_SDK_ROOT:-/data/yuandian/tools/poky/4.0.20}}"
+    TOOLCHAIN_FILE="${CLI_TOOLCHAIN_FILE:-${TOOLCHAIN_FILE:-${ROOT_PWD}/../../cmake/yocto-toolchain.cmake}}"
+
+    # Export variables for CMake
+    export YOCTO_SDK_ROOT
+    export ARCH_BITS
+
+    BUILD_DIR="${ROOT_PWD}/build/yocto/${ARCH_BITS}"
+
+    # Select OpenCV based on target architecture
+    if [[ "${ARCH_BITS}" == "32" ]]; then
+        OPENCV_DIR="${ROOT_PWD}/../../../dependency/opencv/opencv-linux-armhf/share/OpenCV"
+    else
+        OPENCV_DIR="${ROOT_PWD}/../../../dependency/opencv/opencv-linux-aarch64/share/OpenCV"
+    fi
+
+    echo "==> Building Yocto ${ARCH_BITS}-bit"
+    echo "    toolchain : ${TOOLCHAIN_FILE}"
+    echo "    SDK root  : ${YOCTO_SDK_ROOT}"
+    echo "    BUILD_DIR : ${BUILD_DIR}"
+
+    mkdir -p "${BUILD_DIR}"
+    rm -rf "${BUILD_DIR}"
+
+    "${CMAKE_BIN}" \
+        -S "${ROOT_PWD}/src" \
+        -B "${BUILD_DIR}" \
+        -DCMAKE_TOOLCHAIN_FILE="${TOOLCHAIN_FILE}" \
+        -DYOCTO_SDK_ROOT="${YOCTO_SDK_ROOT}" \
+        -DARCH_BITS="${ARCH_BITS}" \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DOpenCV_DIR="${OPENCV_DIR}"
+
+    "${CMAKE_BIN}" --build "${BUILD_DIR}" --config Release
+
+    # Strip (best-effort)
+    HOST_SYSROOT="${YOCTO_SDK_ROOT}/sysroots/x86_64-pokysdk-linux"
+    if [[ "${ARCH_BITS}" == "32" ]]; then
+        CROSS_TRIPLE="arm-poky-linux-gnueabi"
+    else
+        CROSS_TRIPLE="aarch64-poky-linux"
+    fi
+    STRIP_TOOL="${HOST_SYSROOT}/usr/bin/${CROSS_TRIPLE}/${CROSS_TRIPLE}-strip"
+    if [[ -x "${STRIP_TOOL}" ]]; then
+        "${STRIP_TOOL}" --strip-unneeded "${BUILD_DIR}/yolov8_demo"
+    else
+        echo "warning: strip tool not found; keeping debug info." >&2
+    fi
+
+    echo "Build complete. Executable in ${BUILD_DIR}/yolov8_demo"
+    exit 0
+fi
+
+# ===========================================================================
+# Standard Linux cross-compile build
+# ===========================================================================
+
 # Default to aarch64-linux-gnu if GCC_COMPILER is not set
 GCC_COMPILER=${GCC_COMPILER:-aarch64-linux-gnu}
 
@@ -65,14 +156,6 @@ fi
 ROOT_PWD=$(cd "$(dirname $0)" && pwd)
 BUILD_DIR=${ROOT_PWD}/build/linux
 
-echo "Building for Linux..."
-echo "COMPILER: ${CC}"
-echo "TARGET_ARCH: ${TARGET_ARCH}"
-echo "BUILD_DIR: ${BUILD_DIR}"
-
-mkdir -p ${BUILD_DIR}
-cd ${BUILD_DIR}
-
 # Set OpenCV path
 if [ "${TARGET_ARCH}" == "aarch64" ]; then
     OPENCV_DIR_NAME="opencv-linux-aarch64"
@@ -82,11 +165,18 @@ else
     echo "Warning: No OpenCV prebuilt for architecture ${TARGET_ARCH}"
 fi
 
+echo "Building for Linux..."
+echo "COMPILER: ${CC}"
+echo "TARGET_ARCH: ${TARGET_ARCH}"
+echo "BUILD_DIR: ${BUILD_DIR}"
+
+mkdir -p ${BUILD_DIR}
+cd ${BUILD_DIR}
+
 cmake ../../src \
     -DCMAKE_SYSTEM_NAME=Linux \
     -DCMAKE_SYSTEM_PROCESSOR=${TARGET_ARCH} \
     -DCMAKE_BUILD_TYPE=Release \
-    -DNNSDK_DIR=${ROOT_PWD}/../../../../amlnn-toolkit/nn_runtime/nnsdk \
     -DOpenCV_DIR=${ROOT_PWD}/../../../dependency/opencv/${OPENCV_DIR_NAME}/share/OpenCV
 
 make -j4

examples/yoloworld/cpp/build-linux.sh

@@ -18,21 +18,41 @@ set -e
 #
 
 usage() {
-    echo "Usage: $0 [-a <target_arch>]"
+    echo "Usage: $0 [-m <mode>] [-a <target_arch>] [-b <arch_bits>] [-s <yocto_sdk_root>] [-t <toolchain_file>]"
-    echo "  -a <target_arch> : Target architecture (default: aarch64)"
+    echo "  -m <mode>      : Build mode: 'linux' or 'yocto' (default: linux)"
-    echo "  -h               : Show this help message"
+    echo "  -a <target>    : Target arch for linux mode (default: aarch64)"
+    echo "  -b <arch_bits> : Arch bits for yocto mode: 32 or 64 (default: 64)"
+    echo "  -s <sdk_root>  : Yocto SDK root path (overrides YOCTO_SDK_ROOT env var)"
+    echo "  -t <toolchain> : CMake toolchain file (overrides TOOLCHAIN_FILE env var)"
+    echo "  -h             : Show this help message"
     exit 1
 }
 
 # Default values
+BUILD_MODE=linux
 TARGET_ARCH=aarch64
+ARCH_BITS=64
+CLI_SDK_ROOT=""
+CLI_TOOLCHAIN_FILE=""
 
 # Parse arguments
-while getopts 'a:h' opt; do
+while getopts 'm:a:b:s:t:h' opt; do
   case "$opt" in
+    m)
+      BUILD_MODE=$OPTARG
+      ;;
     a)
       TARGET_ARCH=$OPTARG
       ;;
+    b)
+      ARCH_BITS=$OPTARG
+      ;;
+    s)
+      CLI_SDK_ROOT=$OPTARG
+      ;;
+    t)
+      CLI_TOOLCHAIN_FILE=$OPTARG
+      ;;
     h)
       usage
       ;;
@@ -42,6 +62,77 @@ while getopts 'a:h' opt; do
   esac
 done
 
+ROOT_PWD=$(cd "$(dirname $0)" && pwd)
+
+# ===========================================================================
+# Yocto build
+# ===========================================================================
+if [[ "${BUILD_MODE}" == "yocto" ]]; then
+
+    if [[ "${ARCH_BITS}" != "32" && "${ARCH_BITS}" != "64" ]]; then
+        echo "Unsupported ARCH_BITS \"${ARCH_BITS}\". Must be 32 or 64." >&2
+        exit 1
+    fi
+
+    # Configurable via environment variables (CLI args > env vars > defaults)
+    CMAKE_BIN="${CMAKE_BIN:-cmake}"
+    YOCTO_SDK_ROOT="${CLI_SDK_ROOT:-${YOCTO_SDK_ROOT:-/data/yuandian/tools/poky/4.0.20}}"
+    TOOLCHAIN_FILE="${CLI_TOOLCHAIN_FILE:-${TOOLCHAIN_FILE:-${ROOT_PWD}/../../cmake/yocto-toolchain.cmake}}"
+
+    # Export variables for CMake
+    export YOCTO_SDK_ROOT
+    export ARCH_BITS
+
+    BUILD_DIR="${ROOT_PWD}/build/yocto/${ARCH_BITS}"
+
+    echo "==> Building Yocto ${ARCH_BITS}-bit"
+    echo "    toolchain : ${TOOLCHAIN_FILE}"
+    echo "    SDK root  : ${YOCTO_SDK_ROOT}"
+    echo "    BUILD_DIR : ${BUILD_DIR}"
+
+    mkdir -p "${BUILD_DIR}"
+    rm -rf "${BUILD_DIR}"
+
+    # Select OpenCV based on target architecture
+    if [[ "${ARCH_BITS}" == "32" ]]; then
+        OPENCV_DIR="${ROOT_PWD}/../../../dependency/opencv/opencv-linux-armhf/share/OpenCV"
+    else
+        OPENCV_DIR="${ROOT_PWD}/../../../dependency/opencv/opencv-linux-aarch64/share/OpenCV"
+    fi
+
+    "${CMAKE_BIN}" \
+        -S "${ROOT_PWD}/src" \
+        -B "${BUILD_DIR}" \
+        -DCMAKE_TOOLCHAIN_FILE="${TOOLCHAIN_FILE}" \
+        -DYOCTO_SDK_ROOT="${YOCTO_SDK_ROOT}" \
+        -DARCH_BITS="${ARCH_BITS}" \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DOpenCV_DIR="${OPENCV_DIR}"
+
+    "${CMAKE_BIN}" --build "${BUILD_DIR}" --config Release
+
+    # Strip (best-effort)
+    HOST_SYSROOT="${YOCTO_SDK_ROOT}/sysroots/x86_64-pokysdk-linux"
+    if [[ "${ARCH_BITS}" == "32" ]]; then
+        CROSS_TRIPLE="arm-poky-linux-gnueabi"
+    else
+        CROSS_TRIPLE="aarch64-poky-linux"
+    fi
+    STRIP_TOOL="${HOST_SYSROOT}/usr/bin/${CROSS_TRIPLE}/${CROSS_TRIPLE}-strip"
+    if [[ -x "${STRIP_TOOL}" ]]; then
+        "${STRIP_TOOL}" --strip-unneeded "${BUILD_DIR}/yolo_world_demo"
+    else
+        echo "warning: strip tool not found; keeping debug info." >&2
+    fi
+
+    echo "Build complete. Executable in ${BUILD_DIR}/yolo_world_demo"
+    exit 0
+fi
+
+# ===========================================================================
+# Standard Linux cross-compile build
+# ===========================================================================
+
 # Default to aarch64-linux-gnu if GCC_COMPILER is not set
 GCC_COMPILER=${GCC_COMPILER:-aarch64-linux-gnu}
 
@@ -57,7 +148,6 @@ if ! command -v ${CC} &> /dev/null; then
     exit 1
 fi
 
-ROOT_PWD=$(cd "$(dirname $0)" && pwd)
 BUILD_DIR=${ROOT_PWD}/build/linux
 
 echo "Building for Linux..."

examples/yolox/cpp/build-linux.sh

@@ -1,23 +1,42 @@
-#TODO
 #!/bin/bash
 set -e
 
 usage() {
-    echo "Usage: $0 [-a <target_arch>]"
+    echo "Usage: $0 [-m <mode>] [-a <target_arch>] [-b <arch_bits>] [-s <yocto_sdk_root>] [-t <toolchain_file>]"
-    echo "  -a <target_arch> : Target architecture (default: aarch64)"
+    echo "  -m <mode>      : Build mode: 'linux' or 'yocto' (default: linux)"
-    echo "  -h               : Show this help message"
+    echo "  -a <target>    : Target arch for linux mode (default: aarch64)"
+    echo "  -b <arch_bits> : Arch bits for yocto mode: 32 or 64 (default: 64)"
+    echo "  -s <sdk_root>  : Yocto SDK root path (overrides YOCTO_SDK_ROOT env var)"
+    echo "  -t <toolchain> : CMake toolchain file (overrides TOOLCHAIN_FILE env var)"
+    echo "  -h             : Show this help message"
     exit 1
 }
 
 # Default values
+BUILD_MODE=linux
 TARGET_ARCH=aarch64
+ARCH_BITS=64
+CLI_SDK_ROOT=""
+CLI_TOOLCHAIN_FILE=""
 
 # Parse arguments
-while getopts 'a:h' opt; do
+while getopts 'm:a:b:s:t:h' opt; do
   case "$opt" in
+    m)
+      BUILD_MODE=$OPTARG
+      ;;
     a)
       TARGET_ARCH=$OPTARG
       ;;
+    b)
+      ARCH_BITS=$OPTARG
+      ;;
+    s)
+      CLI_SDK_ROOT=$OPTARG
+      ;;
+    t)
+      CLI_TOOLCHAIN_FILE=$OPTARG
+      ;;
     h)
       usage
       ;;
@@ -27,6 +46,77 @@ while getopts 'a:h' opt; do
   esac
 done
 
+ROOT_PWD=$(cd "$(dirname $0)" && pwd)
+
+# ===========================================================================
+# Yocto build
+# ===========================================================================
+if [[ "${BUILD_MODE}" == "yocto" ]]; then
+
+    if [[ "${ARCH_BITS}" != "32" && "${ARCH_BITS}" != "64" ]]; then
+        echo "Unsupported ARCH_BITS \"${ARCH_BITS}\". Must be 32 or 64." >&2
+        exit 1
+    fi
+
+    # Configurable via environment variables (CLI args > env vars > defaults)
+    CMAKE_BIN="${CMAKE_BIN:-cmake}"
+    YOCTO_SDK_ROOT="${CLI_SDK_ROOT:-${YOCTO_SDK_ROOT:-/data/yuandian/tools/poky/4.0.20}}"
+    TOOLCHAIN_FILE="${CLI_TOOLCHAIN_FILE:-${TOOLCHAIN_FILE:-${ROOT_PWD}/../../cmake/yocto-toolchain.cmake}}"
+
+    # Export variables for CMake (important for try_compile and toolchain fallbacks)
+    export YOCTO_SDK_ROOT
+    export ARCH_BITS
+
+    BUILD_DIR="${ROOT_PWD}/build/yocto/${ARCH_BITS}"
+
+    echo "==> Building Yocto ${ARCH_BITS}-bit"
+    echo "    toolchain : ${TOOLCHAIN_FILE}"
+    echo "    SDK root  : ${YOCTO_SDK_ROOT}"
+    echo "    BUILD_DIR : ${BUILD_DIR}"
+
+    mkdir -p "${BUILD_DIR}"
+    rm -rf "${BUILD_DIR}"
+
+    # Select OpenCV based on target architecture
+    if [[ "${ARCH_BITS}" == "32" ]]; then
+        OPENCV_DIR="${ROOT_PWD}/../../../dependency/opencv/opencv-linux-armhf/share/OpenCV"
+    else
+        OPENCV_DIR="${ROOT_PWD}/../../../dependency/opencv/opencv-linux-aarch64/share/OpenCV"
+    fi
+
+    "${CMAKE_BIN}" \
+        -S "${ROOT_PWD}/src" \
+        -B "${BUILD_DIR}" \
+        -DCMAKE_TOOLCHAIN_FILE="${TOOLCHAIN_FILE}" \
+        -DYOCTO_SDK_ROOT="${YOCTO_SDK_ROOT}" \
+        -DARCH_BITS="${ARCH_BITS}" \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DOpenCV_DIR="${OPENCV_DIR}"
+
+    "${CMAKE_BIN}" --build "${BUILD_DIR}" --config Release
+
+    # Strip (best-effort)
+    HOST_SYSROOT="${YOCTO_SDK_ROOT}/sysroots/x86_64-pokysdk-linux"
+    if [[ "${ARCH_BITS}" == "32" ]]; then
+        CROSS_TRIPLE="arm-poky-linux-gnueabi"
+    else
+        CROSS_TRIPLE="aarch64-poky-linux"
+    fi
+    STRIP_TOOL="${HOST_SYSROOT}/usr/bin/${CROSS_TRIPLE}/${CROSS_TRIPLE}-strip"
+    if [[ -x "${STRIP_TOOL}" ]]; then
+        "${STRIP_TOOL}" --strip-unneeded "${BUILD_DIR}/yolox_demo"
+    else
+        echo "warning: strip tool not found; keeping debug info." >&2
+    fi
+
+    echo "Build complete. Executable in ${BUILD_DIR}/yolox_demo"
+    exit 0
+fi
+
+# ===========================================================================
+# Standard Linux cross-compile build
+# ===========================================================================
+
 # Default to aarch64-linux-gnu if GCC_COMPILER is not set
 GCC_COMPILER=${GCC_COMPILER:-aarch64-linux-gnu}
 
@@ -44,7 +134,6 @@ else
     echo "Using compiler: ${CC}"
 fi
 
-ROOT_PWD=$(cd "$(dirname $0)" && pwd)
 BUILD_DIR=${ROOT_PWD}/build/linux
 
 echo "Building for Linux..."
@@ -62,4 +151,4 @@ cmake ../../src \
     -DOpenCV_DIR=${ROOT_PWD}/../../../dependency/opencv/opencv-linux-aarch64/share/OpenCV
 make -j4
 
-echo "Build complete. Executable in ${BUILD_DIR}/yolo11_demo"
+echo "Build complete. Executable in ${BUILD_DIR}/yolox_demo"