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import os
# toolchains options
ARCH ='risc-v'
CPU =''
CROSS_TOOL ='gcc'
RISCV_ABI = os.getenv('RTT_RISCV_ABI')
RTT_ROOT = os.getenv('RTT_ROOT') or os.path.join(os.getcwd(), '..', '..', '..')
if os.getenv('RTT_CC'):
CROSS_TOOL = os.getenv('RTT_CC')
if CROSS_TOOL == 'gcc':
PLATFORM = 'gcc'
EXEC_PATH = os.getenv('RTT_EXEC_PATH') or '/usr/bin'
else:
print('Please make sure your toolchains is GNU GCC!')
exit(0)
BUILD = 'debug'
if PLATFORM == 'gcc':
# toolchains
PREFIX = os.getenv('RTT_CC_PREFIX') or 'riscv64-unknown-elf-'
CC = PREFIX + 'gcc'
CXX = PREFIX + 'g++'
CPP = PREFIX + 'cpp'
AS = PREFIX + 'gcc'
AR = PREFIX + 'ar'
LINK = PREFIX + 'gcc'
TARGET_EXT = 'elf'
SIZE = PREFIX + 'size'
OBJDUMP = PREFIX + 'objdump'
OBJCPY = PREFIX + 'objcopy'
DEVICE = ' -mcmodel=medany -march=rv64imafdc '
if RISCV_ABI:
DEVICE += ' -mabi={} '.format(RISCV_ABI)
# DEVICE = ' -mcpu=spacemit-x60 -march=rv64gc_zba_zbb_zbc_zbs -mabi=lp64d '
CPPFLAGS= ' -nostdinc -undef -E -P -x assembler-with-cpp'
CFLAGS = DEVICE + '-ffreestanding -flax-vector-conversions -Wall -Wno-cpp -fno-common -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -fdiagnostics-color=always'
AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -D__ASSEMBLY__ '
LFLAGS = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,_start -T link.lds' + ' -lsupc++ -lgcc -static'
CPATH = ''
LPATH = ''
if BUILD == 'debug':
CFLAGS += ' -O0 -ggdb -fvar-tracking '
AFLAGS += ' -ggdb'
else:
CFLAGS += ' -O2 -Os'
CXXFLAGS = CFLAGS
DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtthread.asm\n'
POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\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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