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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'
CPU =''
CROSS_TOOL ='gcc'
if os.getenv('RTT_CC'):
CROSS_TOOL = os.getenv('RTT_CC')
if CROSS_TOOL == 'gcc':
PLATFORM = 'gcc'
EXEC_PATH = r'~/.espressif/tools/riscv32-esp-elf/esp-15.2.0_20251204/riscv32-esp-elf/bin'
else:
print('Please make sure your toolchains is GNU GCC!')
exit(0)
if os.getenv('RTT_EXEC_PATH'):
EXEC_PATH = os.getenv('RTT_EXEC_PATH')
EXEC_PATH = os.path.expanduser(EXEC_PATH)
BUILD = 'debug'
if PLATFORM == 'gcc':
# toolchains
PREFIX = 'riscv32-esp-elf-'
CC = PREFIX + 'gcc'
CXX = PREFIX + 'g++'
AS = PREFIX + 'gcc'
AR = PREFIX + 'ar'
LINK = PREFIX + 'g++'
TARGET_EXT = 'elf'
SIZE = PREFIX + 'size'
OBJDUMP = PREFIX + 'objdump'
OBJCPY = PREFIX + 'objcopy'
STRIP = PREFIX + 'strip'
# ESP-IDF v6.1 / binutils >= 2.41 no longer imply the Zicsr/Zifencei
# extensions in `-march=rv32imc`, so spell them out.
DEVICE = ' -nostartfiles -march=rv32imc_zicsr_zifencei --specs=nosys.specs -fasynchronous-unwind-tables '
# RT-Thread's rt_uint32_t/rt_tick_t are layout compatible with the
# toolchain's uint32_t but not the same type (`unsigned int` vs
# `long unsigned int` on riscv32 with GCC 15). ESP-IDF v6.1 sources
# mix both, and GCC >= 14 promotes incompatible-pointer-types and
# int-conversion from warnings to errors.
CFLAGS = DEVICE + '-Wno-error=incompatible-pointer-types -Wno-error=int-conversion '
CFLAGS += '-include ../../components/libc/compilers/common/include/sys/ioctl.h -gdwarf-4 -ggdb -Og '
AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp'
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'
def dist_handle(BSP_ROOT, dist_dir):
import sys
sys.path.append(os.path.join(os.path.dirname(BSP_ROOT), 'tools'))
from sdk_dist import dist_do_building
dist_do_building(BSP_ROOT, dist_dir)
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