RT-Thread · Rbb666 · Jul 9, 2026 · Jun 10, 2026
diff --git a/bsp/ESP/ESP32_C3/SConstruct b/bsp/ESP/ESP32_C3/SConstruct
@@ -1,6 +1,5 @@
 import os
 import sys
-import rtconfig
 from esptool.bin_image import ELFFile, ImageSegment, LoadFirmwareImage
 from esptool.targets import CHIP_DEFS, CHIP_LIST, ROM_LIST
 
@@ -40,6 +39,7 @@ else:
     RTT_ROOT = os.path.join(os.getcwd(), '..', '..', '..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+import rtconfig
 from building import *
 
 TARGET = 'rtthread.' + rtconfig.TARGET_EXT

diff --git a/bsp/ESP/ESP32_C3/rtconfig.py b/bsp/ESP/ESP32_C3/rtconfig.py
@@ -1,4 +1,10 @@
 import os
+import sys
+
+BSP_ROOT = os.path.dirname(os.path.abspath(__file__))
+RTT_ROOT = os.getenv('RTT_ROOT') or os.path.normpath(os.path.join(BSP_ROOT, '..', '..', '..'))
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+from env_package import find_package_path
 
 # toolchains options
 ARCH        ='risc-v'
@@ -8,7 +14,7 @@
 if os.getenv('RTT_CC'):
     CROSS_TOOL = os.getenv('RTT_CC')
 
-if CROSS_TOOL == 'gcc': 
+if CROSS_TOOL == 'gcc':
     PLATFORM    = 'gcc'
     EXEC_PATH   = r'~/.espressif/tools/riscv32-esp-elf/esp-2022r1-11.2.0/riscv32-esp-elf/bin'
 else:
@@ -38,8 +44,9 @@
     DEVICE  = ' -nostartfiles -march=rv32imc --specs=nosys.specs -fasynchronous-unwind-tables '
     CFLAGS = DEVICE + '-include ../../components/libc/compilers/common/include/sys/ioctl.h -gdwarf-4 -ggdb -Og '
     AFLAGS =  ' -c' + DEVICE + ' -x assembler-with-cpp'
-    LFLAGS = DEVICE + ' -Wl,--cref -Wl,--defsym=IDF_TARGET_ESP32C3=0 -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,_start -T idf_port/ld/memory.ld -T idf_port/ld/sections.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.api.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.libgcc.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.newlib.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.version.ld -T packages/ESP-IDF-latest/components/esp_rom/esp32c3/ld/esp32c3.rom.eco3.ld -T packages/ESP-IDF-latest/components/soc/esp32c3/ld/esp32c3.peripherals.ld  -Wl,--wrap=_Unwind_SetEnableExceptionFdeSorting -Wl,--wrap=__register_frame_info_bases -Wl,--wrap=__register_frame_info -Wl,--wrap=__register_frame -Wl,--wrap=__register_frame_info_table_bases -Wl,--wrap=__register_frame_info_table -Wl,--wrap=__register_frame_table -Wl,--wrap=__deregister_frame_info_bases -Wl,--wrap=__deregister_frame_info -Wl,--wrap=_Unwind_Find_FDE -Wl,--wrap=_Unwind_GetGR -Wl,--wrap=_Unwind_GetCFA -Wl,--wrap=_Unwind_GetIP -Wl,--wrap=_Unwind_GetIPInfo -Wl,--wrap=_Unwind_GetRegionStart -Wl,--wrap=_Unwind_GetDataRelBase -Wl,--wrap=_Unwind_GetTextRelBase -Wl,--wrap=_Unwind_SetIP -Wl,--wrap=_Unwind_SetGR -Wl,--wrap=_Unwind_GetLanguageSpecificData -Wl,--wrap=_Unwind_FindEnclosingFunction -Wl,--wrap=_Unwind_Resume -Wl,--wrap=_Unwind_RaiseException -Wl,--wrap=_Unwind_DeleteException -Wl,--wrap=_Unwind_ForcedUnwind -Wl,--wrap=_Unwind_Resume_or_Rethrow -Wl,--wrap=_Unwind_Backtrace -Wl,--wrap=__cxa_call_unexpected -Wl,--eh-frame-hdr -Wl,--wrap=__gxx_personality_v0  -Wl,--cref -Wl,--defsym=IDF_TARGET_ESP32C3=0'
-    CXXFLAGS = CFLAGS 
+    idf_path = find_package_path(BSP_ROOT, 'ESP-IDF-latest', relative_to=BSP_ROOT, pathsep='/')
+    LFLAGS = DEVICE + ' -Wl,--cref -Wl,--defsym=IDF_TARGET_ESP32C3=0 -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,_start -T idf_port/ld/memory.ld -T idf_port/ld/sections.ld -T ' + idf_path + '/components/esp_rom/esp32c3/ld/esp32c3.rom.ld -T ' + idf_path + '/components/esp_rom/esp32c3/ld/esp32c3.rom.api.ld -T ' + idf_path + '/components/esp_rom/esp32c3/ld/esp32c3.rom.libgcc.ld -T ' + idf_path + '/components/esp_rom/esp32c3/ld/esp32c3.rom.newlib.ld -T ' + idf_path + '/components/esp_rom/esp32c3/ld/esp32c3.rom.version.ld -T ' + idf_path + '/components/esp_rom/esp32c3/ld/esp32c3.rom.eco3.ld -T ' + idf_path + '/components/soc/esp32c3/ld/esp32c3.peripherals.ld  -Wl,--wrap=_Unwind_SetEnableExceptionFdeSorting -Wl,--wrap=__register_frame_info_bases -Wl,--wrap=__register_frame_info -Wl,--wrap=__register_frame -Wl,--wrap=__register_frame_info_table_bases -Wl,--wrap=__register_frame_info_table -Wl,--wrap=__register_frame_table -Wl,--wrap=__deregister_frame_info_bases -Wl,--wrap=__deregister_frame_info -Wl,--wrap=_Unwind_Find_FDE -Wl,--wrap=_Unwind_GetGR -Wl,--wrap=_Unwind_GetCFA -Wl,--wrap=_Unwind_GetIP -Wl,--wrap=_Unwind_GetIPInfo -Wl,--wrap=_Unwind_GetRegionStart -Wl,--wrap=_Unwind_GetDataRelBase -Wl,--wrap=_Unwind_GetTextRelBase -Wl,--wrap=_Unwind_SetIP -Wl,--wrap=_Unwind_SetGR -Wl,--wrap=_Unwind_GetLanguageSpecificData -Wl,--wrap=_Unwind_FindEnclosingFunction -Wl,--wrap=_Unwind_Resume -Wl,--wrap=_Unwind_RaiseException -Wl,--wrap=_Unwind_DeleteException -Wl,--wrap=_Unwind_ForcedUnwind -Wl,--wrap=_Unwind_Resume_or_Rethrow -Wl,--wrap=_Unwind_Backtrace -Wl,--wrap=__cxa_call_unexpected -Wl,--eh-frame-hdr -Wl,--wrap=__gxx_personality_v0  -Wl,--cref -Wl,--defsym=IDF_TARGET_ESP32C3=0'
+    CXXFLAGS = CFLAGS
 
     POST_ACTION = OBJCPY + ' -Oihex $TARGET rtthread.hex\n' + SIZE + ' $TARGET \n'
 

diff --git a/bsp/Infineon/libraries/templates/XMC7200D/SConstruct b/bsp/Infineon/libraries/templates/XMC7200D/SConstruct
@@ -10,6 +10,7 @@ else:
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
     from building import *
+    from env_package import find_package_root
 except:
     print('Cannot found RT-Thread root directory, please check RTT_ROOT')
     print(RTT_ROOT)
@@ -36,10 +37,10 @@ Export('rtconfig')
 
 SDK_ROOT = os.path.abspath('./')
 
-if os.path.exists(SDK_ROOT + '/packages'):
-    libraries_path_prefix = SDK_ROOT + '/packages'
-else:
+libraries_path_prefix = find_package_root(SDK_ROOT, package_prefix='Infineon_mtb-pdl-cat1')
+if not libraries_path_prefix:
     print("Error: Packages for HAL_Driver does not exist, pull it in ENV using `pkg --update`.")
+    libraries_path_prefix = os.path.join(SDK_ROOT, 'packages')
 
 SDK_LIB = libraries_path_prefix
 Export('SDK_LIB')

diff --git a/bsp/Infineon/psoc6-cy8ckit-062-BLE/SConstruct b/bsp/Infineon/psoc6-cy8ckit-062-BLE/SConstruct
@@ -10,6 +10,7 @@ else:
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
     from building import *
+    from env_package import find_package_root
 except:
     print('Cannot found RT-Thread root directory, please check RTT_ROOT')
     print(RTT_ROOT)
@@ -36,12 +37,10 @@ Export('rtconfig')
 
 SDK_ROOT = os.path.abspath('./')
 
-libraries_path_prefix = SDK_ROOT
-
-if os.path.exists(SDK_ROOT + '/packages'):
-    libraries_path_prefix = SDK_ROOT + '/packages'
-else:
+libraries_path_prefix = find_package_root(SDK_ROOT, package_prefix='Infineon_mtb-pdl-cat1')
+if not libraries_path_prefix:
     print("Error: Packages for HAL_Driver does not exist, pull it in ENV using `pkg --update`.")
+    libraries_path_prefix = os.path.join(SDK_ROOT, 'packages')
 
 SDK_LIB = libraries_path_prefix
 Export('SDK_LIB')

diff --git a/bsp/Infineon/psoc6-cy8ckit-062-WIFI-BT/SConstruct b/bsp/Infineon/psoc6-cy8ckit-062-WIFI-BT/SConstruct
@@ -10,6 +10,7 @@ else:
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
     from building import *
+    from env_package import find_package_root
 except:
     print('Cannot found RT-Thread root directory, please check RTT_ROOT')
     print(RTT_ROOT)
@@ -36,12 +37,10 @@ Export('rtconfig')
 
 SDK_ROOT = os.path.abspath('./')
 
-libraries_path_prefix = SDK_ROOT
-
-if os.path.exists(SDK_ROOT + '/packages'):
-    libraries_path_prefix = SDK_ROOT + '/packages'
-else:
+libraries_path_prefix = find_package_root(SDK_ROOT, package_prefix='Infineon_mtb-pdl-cat1')
+if not libraries_path_prefix:
     print("Error: Packages for HAL_Driver does not exist, pull it in ENV using `pkg --update`.")
+    libraries_path_prefix = os.path.join(SDK_ROOT, 'packages')
 
 SDK_LIB = libraries_path_prefix
 Export('SDK_LIB')

diff --git a/bsp/Infineon/psoc6-cy8ckit-062S2-43012/SConstruct b/bsp/Infineon/psoc6-cy8ckit-062S2-43012/SConstruct
@@ -10,6 +10,7 @@ else:
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
     from building import *
+    from env_package import find_package_root
 except:
     print('Cannot found RT-Thread root directory, please check RTT_ROOT')
     print(RTT_ROOT)
@@ -36,12 +37,10 @@ Export('rtconfig')
 
 SDK_ROOT = os.path.abspath('./')
 
-libraries_path_prefix = SDK_ROOT
-
-if os.path.exists(SDK_ROOT + '/packages'):
-    libraries_path_prefix = SDK_ROOT + '/packages'
-else:
+libraries_path_prefix = find_package_root(SDK_ROOT, package_prefix='Infineon_mtb-pdl-cat1')
+if not libraries_path_prefix:
     print("Error: Packages for HAL_Driver does not exist, pull it in ENV using `pkg --update`.")
+    libraries_path_prefix = os.path.join(SDK_ROOT, 'packages')
 
 SDK_LIB = libraries_path_prefix
 Export('SDK_LIB')

diff --git a/bsp/Infineon/psoc6-cy8ckit-062s4/SConstruct b/bsp/Infineon/psoc6-cy8ckit-062s4/SConstruct
@@ -10,6 +10,7 @@ else:
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
     from building import *
+    from env_package import find_package_root
 except:
     print('Cannot found RT-Thread root directory, please check RTT_ROOT')
     print(RTT_ROOT)
@@ -36,12 +37,10 @@ Export('rtconfig')
 
 SDK_ROOT = os.path.abspath('./')
 
-libraries_path_prefix = SDK_ROOT
-
-if os.path.exists(SDK_ROOT + '/packages'):
-    libraries_path_prefix = SDK_ROOT + '/packages'
-else:
+libraries_path_prefix = find_package_root(SDK_ROOT, package_prefix='Infineon_mtb-pdl-cat1')
+if not libraries_path_prefix:
     print("Error: Packages for HAL_Driver does not exist, pull it in ENV using `pkg --update`.")
+    libraries_path_prefix = os.path.join(SDK_ROOT, 'packages')
 
 SDK_LIB = libraries_path_prefix
 Export('SDK_LIB')

diff --git a/bsp/Infineon/psoc6-cy8cproto-062S3-4343W/SConstruct b/bsp/Infineon/psoc6-cy8cproto-062S3-4343W/SConstruct
@@ -10,6 +10,7 @@ else:
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
     from building import *
+    from env_package import find_package_root
 except:
     print('Cannot found RT-Thread root directory, please check RTT_ROOT')
     print(RTT_ROOT)
@@ -36,12 +37,10 @@ Export('rtconfig')
 
 SDK_ROOT = os.path.abspath('./')
 
-libraries_path_prefix = SDK_ROOT
-
-if os.path.exists(SDK_ROOT + '/packages'):
-    libraries_path_prefix = SDK_ROOT + '/packages'
-else:
+libraries_path_prefix = find_package_root(SDK_ROOT, package_prefix='Infineon_mtb-pdl-cat1')
+if not libraries_path_prefix:
     print("Error: Packages for HAL_Driver does not exist, pull it in ENV using `pkg --update`.")
+    libraries_path_prefix = os.path.join(SDK_ROOT, 'packages')
 
 SDK_LIB = libraries_path_prefix
 Export('SDK_LIB')

diff --git a/bsp/Infineon/psoc6-evaluationkit-062S2/SConstruct b/bsp/Infineon/psoc6-evaluationkit-062S2/SConstruct
@@ -10,6 +10,7 @@ else:
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
     from building import *
+    from env_package import find_package_root
 except:
     print('Cannot found RT-Thread root directory, please check RTT_ROOT')
     print(RTT_ROOT)
@@ -36,12 +37,10 @@ Export('rtconfig')
 
 SDK_ROOT = os.path.abspath('./')
 
-libraries_path_prefix = SDK_ROOT
-
-if os.path.exists(SDK_ROOT + '/packages'):
-    libraries_path_prefix = SDK_ROOT + '/packages'
-else:
+libraries_path_prefix = find_package_root(SDK_ROOT, package_prefix='Infineon_mtb-pdl-cat1')
+if not libraries_path_prefix:
     print("Error: Packages for HAL_Driver does not exist, pull it in ENV using `pkg --update`.")
+    libraries_path_prefix = os.path.join(SDK_ROOT, 'packages')
 
 SDK_LIB = libraries_path_prefix
 Export('SDK_LIB')

diff --git a/bsp/Infineon/xmc7100d-f144k4160aa/SConstruct b/bsp/Infineon/xmc7100d-f144k4160aa/SConstruct
@@ -10,6 +10,7 @@ else:
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
     from building import *
+    from env_package import find_package_root
 except:
     print('Cannot found RT-Thread root directory, please check RTT_ROOT')
     print(RTT_ROOT)
@@ -36,12 +37,10 @@ Export('rtconfig')
 
 SDK_ROOT = os.path.abspath('./')
 
-libraries_path_prefix = SDK_ROOT
-
-if os.path.exists(SDK_ROOT + '/packages'):
-    libraries_path_prefix = SDK_ROOT + '/packages'
-else:
+libraries_path_prefix = find_package_root(SDK_ROOT, package_prefix='Infineon_mtb-pdl-cat1')
+if not libraries_path_prefix:
     print("Error: Packages for HAL_Driver does not exist, pull it in ENV using `pkg --update`.")
+    libraries_path_prefix = os.path.join(SDK_ROOT, 'packages')
 
 SDK_LIB = libraries_path_prefix
 Export('SDK_LIB')

diff --git a/bsp/Infineon/xmc7200-kit_xmc7200_evk/SConstruct b/bsp/Infineon/xmc7200-kit_xmc7200_evk/SConstruct
@@ -10,6 +10,7 @@ else:
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 try:
     from building import *
+    from env_package import find_package_root
 except:
     print('Cannot found RT-Thread root directory, please check RTT_ROOT')
     print(RTT_ROOT)
@@ -36,12 +37,10 @@ Export('rtconfig')
 
 SDK_ROOT = os.path.abspath('./')
 
-libraries_path_prefix = SDK_ROOT
-
-if os.path.exists(SDK_ROOT + '/packages'):
-    libraries_path_prefix = SDK_ROOT + '/packages'
-else:
+libraries_path_prefix = find_package_root(SDK_ROOT, package_prefix='Infineon_mtb-pdl-cat1')
+if not libraries_path_prefix:
     print("Error: Packages for HAL_Driver does not exist, pull it in ENV using `pkg --update`.")
+    libraries_path_prefix = os.path.join(SDK_ROOT, 'packages')
 
 SDK_LIB = libraries_path_prefix
 Export('SDK_LIB')

diff --git a/bsp/gd32/risc-v/gd32vw553h-eval/SConscript b/bsp/gd32/risc-v/gd32vw553h-eval/SConscript
@@ -1,7 +1,11 @@
 # for module compiling
 import os
+import sys
 Import('RTT_ROOT')
 from building import *
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+from env_package import find_package_path
+from env_package import is_libraries_package
 
 cwd = str(Dir('#'))
 
@@ -13,4 +17,16 @@ for d in list:
     if os.path.isfile(os.path.join(path, 'SConscript')):
         objs = objs + SConscript(os.path.join(d, 'SConscript'))
 
+wifi_pkg_path = find_package_path(cwd, 'gd32vw55x-wifi-latest')
+if wifi_pkg_path and is_libraries_package(wifi_pkg_path) and GetDepend(['PKG_USING_GD32VW55X_WIFI']):
+    lwip_mem = os.path.join(RTT_ROOT, 'components', 'net', 'lwip', 'lwip-2.1.2', 'src', 'core', 'mem.c')
+
+    if os.path.isfile(lwip_mem):
+        objs += DefineGroup('gd32vw55x-wifi-port', [lwip_mem], depend=['PKG_USING_GD32VW55X_WIFI'],
+                            CPPPATH=[
+                                os.path.join(wifi_pkg_path, 'src', 'lwip', 'port'),
+                                os.path.join(wifi_pkg_path, 'src', 'lwip', 'port', 'arch'),
+                                os.path.join(RTT_ROOT, 'components', 'net', 'lwip', 'lwip-2.1.2', 'src', 'include')
+                            ])
+
 Return('objs')
diff --git a/bsp/gd32/risc-v/gd32vw553h-eval/SConstruct b/bsp/gd32/risc-v/gd32vw553h-eval/SConstruct
@@ -1,28 +1,23 @@
 import os
 import sys
-import rtconfig
 
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 else:
     RTT_ROOT = os.path.normpath(os.getcwd() + '/../../../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+import rtconfig
 try:
     from building import *
+    from env_package import packages_available
 except:
     print('Cannot found RT-Thread root directory, please check RTT_ROOT')
     print(RTT_ROOT)
     exit(-1)
 
 def bsp_pkg_check():
-    import subprocess
-
-    check_paths = [
-        os.path.join("packages", "gd32-riscv-series-latest")
-    ]
-
-    need_update = not all(os.path.exists(p) for p in check_paths)
+    need_update = not packages_available(os.path.abspath('.'), ['gd32-riscv-series-latest'])
 
     if need_update:
         print("\n===============================================================================")

diff --git a/bsp/gd32/risc-v/gd32vw553h-eval/board/SConscript b/bsp/gd32/risc-v/gd32vw553h-eval/board/SConscript
@@ -1,8 +1,12 @@
 import os
+import sys
 import rtconfig
 from building import *
 
 Import('SDK_LIB')
+Import('RTT_ROOT')
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+from env_package import find_package_path
 
 cwd = GetCurrentDir()
 
@@ -20,12 +24,20 @@ if GetDepend(['BSP_USING_WLAN']):
 path =  [cwd]
 
 # add startup txt path
-startup_path_prefix = os.getcwd() + '/../'
+package_name = 'gd32-riscv-series-latest'
+package_path = find_package_path(
+    os.path.dirname(cwd),
+    package_name,
+    marker=os.path.join('GD32VW55x', 'RISCV', 'env_Eclipse', 'entry.S'),
+    extra_candidates=[
+        os.path.join(SDK_LIB, package_name),
+        os.path.join(os.path.dirname(SDK_LIB), 'packages', package_name),
+    ])
 
 if rtconfig.PLATFORM in ['gcc']:
     # Use standard peripheral library startup files for compatibility
-    src += [startup_path_prefix + '/packages/gd32-riscv-series-latest/GD32VW55x/RISCV/env_Eclipse/start.S']
-    src += [startup_path_prefix + '/packages/gd32-riscv-series-latest/GD32VW55x/RISCV/env_Eclipse/entry.S']
+    src += [os.path.join(package_path, 'GD32VW55x', 'RISCV', 'env_Eclipse', 'start.S')]
+    src += [os.path.join(package_path, 'GD32VW55x', 'RISCV', 'env_Eclipse', 'entry.S')]
 
 CPPDEFINES = ['GD32VW553H_EVAL']
 group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)

diff --git a/bsp/gd32/risc-v/gd32vw553h-eval/rtconfig.py b/bsp/gd32/risc-v/gd32vw553h-eval/rtconfig.py
@@ -1,4 +1,5 @@
 import os
+import sys
 
 # toolchains options
 ARCH='risc-v'
@@ -13,6 +14,12 @@
 if os.getenv('RTT_ROOT'):
     RTT_ROOT = os.getenv('RTT_ROOT')
 
+BSP_ROOT = os.path.dirname(os.path.abspath(__file__))
+if not os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.path.normpath(os.path.join(BSP_ROOT, '..', '..', '..', '..'))
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+from env_package import find_package_path
+
 # cross_tool provides the cross compiler
 # EXEC_PATH is the compiler execute path, for example, CodeSourcery, Keil MDK, IAR
 if  CROSS_TOOL == 'gcc':
@@ -57,7 +64,7 @@
     # Linking Parameters
     # 添加 --no-warn-mismatch 以忽略预编译库与当前工具链的特权规范版本差异
     # 添加 WiFi ROM 符号表
-    wifi_pkg_path = os.path.join(os.path.dirname(__file__), 'packages', 'gd32vw55x-wifi-latest')
+    wifi_pkg_path = find_package_path(BSP_ROOT, 'gd32vw55x-wifi-latest')
     rom_symbol = os.path.join(wifi_pkg_path, 'rom_export', 'symbol', 'rom_symbol_m.gcc')
     rom_symbol_flag = ''
     if os.path.exists(rom_symbol):