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import os
import sys
# toolchains options
ARCH='risc-v'
CPU='bumblebee'
CROSS_TOOL='gcc'
# bsp lib config
BSP_LIBRARY_TYPE = None
if os.getenv('RTT_CC'):
CROSS_TOOL = os.getenv('RTT_CC')
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':
PLATFORM = 'gcc'
EXEC_PATH = r'C:/Program Files (x86)/GNU Tools RISC-V Embedded/8 2019.08-2/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')
CORE = 'risc-v'
BUILD = 'debug'
MAP_FILE = 'rtthread.map'
LINK_FILE = './board/linker_scripts/link.lds'
if PLATFORM == 'gcc':
# toolchains
PREFIX = 'riscv-none-embed-'
CC = PREFIX + 'gcc'
AS = PREFIX + 'gcc'
AR = PREFIX + 'ar'
CXX = PREFIX + 'g++'
LINK = PREFIX + 'gcc'
TARGET_EXT = 'elf'
SIZE = PREFIX + 'size'
OBJDUMP = PREFIX + 'objdump'
OBJCPY = PREFIX + 'objcopy'
# 使用单精度硬件浮点ABI以匹配预编译的WiFi库 (libwifi.a, libwpas.a, librf.a)
# 预编译库架构: rv32imafcbp (包含单精度浮点 'f' 扩展)
# 原配置: -march=rv32imafdc -mabi=ilp32d (硬件双精度浮点)
# 修改为: -march=rv32imafc -mabi=ilp32f (硬件单精度浮点)
# 注意: GCC 8.2.0 不支持 -mpriv-spec 选项，链接时使用 --no-warn-mismatch 忽略特权规范版本差异
DEVICE = ' -march=rv32imafc -mcmodel=medany -msmall-data-limit=8 -mabi=ilp32f -fmessage-length=0 -fsigned-char -ffunction-sections -fdata-sections '
# C Compilation Parameters
CFLAGS = DEVICE + ' -std=gnu11 -DUSE_STDPERIPH_DRIVE -save-temps=obj'
# Assembly Compilation Parameters
AFLAGS = DEVICE + '-c'+ ' -x assembler-with-cpp'
# 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 = 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):
rom_symbol_flag = ' -Wl,--just-symbols=' + rom_symbol
LFLAGS = DEVICE + ' -nostartfiles -Xlinker --gc-sections -Xlinker --no-warn-mismatch --specs=nano.specs --specs=nosys.specs ' + rom_symbol_flag + ' -T ' + LINK_FILE + ' -Wl,-Map=' + MAP_FILE
CPATH = ''
LPATH = ''
if BUILD == 'debug':
CFLAGS += ' -O0 -g3'
AFLAGS += ' -g3'
else:
CFLAGS += ' -O2'
CXXFLAGS = CFLAGS
POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
def dist_handle(BSP_ROOT, dist_dir):
import sys
cwd_path = os.getcwd()
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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