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import os
# toolchains options
ARCH ='risc-v'
CPU ='rv64'
CROSS_TOOL ='gcc'
# bsp lib config
BSP_LIBRARY_TYPE = None
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/Xuantie-900-gcc-elf-newlib-x86_64-V2.8.1/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 = 'debug'
if PLATFORM == 'gcc':
# toolchains
PREFIX = 'riscv64-unknown-elf-'
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 = ' -march=rv64imafdc -mabi=lp64d -mcmodel=medany'
CFLAGS = DEVICE + ' -std=gnu11 -ffunction-sections -fdata-sections -Wl,--gc-sections -Wno-pointer-to-int-cast -fno-builtin -Wno-missing-field-initializers -fdiagnostics-color=always'
CFLAGS += ' -Wall -nostdlib'
CFLAGS += ' -DCONFIG_64BIT'
LINKER_SCRIPTS = r'cv180x_lscript.ld'
LINKER_SCRIPTS_PATH = r' -L board/script/cv180x'
AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp'
LFLAGS = DEVICE + ' -nostartfiles -fms-extensions -ffunction-sections -fdata-sections -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,_start -T ' + LINKER_SCRIPTS + LINKER_SCRIPTS_PATH
CPATH = ''
LPATH = ''
if BUILD == 'debug':
CFLAGS += ' -O2 -g'
AFLAGS += ' -g'
else:
CFLAGS += ' -O3'
CXXFLAGS = CFLAGS + ' -std=gnu++17 -Wno-multichar -Wno-parentheses'
DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
POST_ACTION += 'cd .. && bash ./build.sh -l' + ' \n'
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