import os # toolchains options ARCH ='risc-v' CPU ='k210' CROSS_TOOL ='gcc' if os.getenv('RTT_ROOT'): RTT_ROOT = os.getenv('RTT_ROOT') else: RTT_ROOT = r'../..' if os.getenv('RTT_CC'): CROSS_TOOL = os.getenv('RTT_CC') if CROSS_TOOL == 'gcc': PLATFORM = 'gcc' EXEC_PATH = r'/opt/gnu-mcu-eclipse/riscv-none-gcc/8.2.0-2.1-20190425-1021/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') BUILD = 'release' if PLATFORM == 'gcc': # toolchains PREFIX = 'riscv-none-embed-' CC = PREFIX + 'gcc' CXX = PREFIX + 'g++' 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 -mabi=lp64d' CFLAGS = DEVICE + ' -fno-common -ffunction-sections -fdata-sections -fstrict-volatile-bitfields' AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp' LFLAGS = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,_start -T link.lds' CPATH = '' LPATH = '' if BUILD == 'debug': CFLAGS += ' -O0 -ggdb' AFLAGS += ' -ggdb' else: CFLAGS += ' -O2 -Os' CXXFLAGS = CFLAGS DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n' POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'