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# Copyright 2021-2025 HPMicro
# SPDX-License-Identifier: BSD-3-Clause
import os
import sys
import rtconfig
if os.getenv('RTT_ROOT'):
RTT_ROOT = os.getenv('RTT_ROOT')
else:
RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
# toolchains options
ARCH='risc-v'
CPU='hpmicro'
SOC_FAMILY='HPM6300'
CHIP_NAME='HPM6360'
CROSS_TOOL='gcc'
# bsp lib config
BSP_LIBRARY_TYPE = None
# Fallback toolchain info
FALLBACK_TOOLCHAIN_VENDOR='RISC-V'
FALLBACK_TOOLCHAIN_PKG='RISC-V-GCC-RV32'
FALLBACK_TOOLCHAIN_VER='2022-04-12'
if os.getenv('RTT_CC'):
CROSS_TOOL = os.getenv('RTT_CC')
RTT_EXEC_PATH = os.getenv('RTT_EXEC_PATH')
if RTT_EXEC_PATH != None:
folders = RTT_EXEC_PATH.split(os.sep)
# If the `RT-Thread Env` is from the RT-Thread Studio, generate the RTT_EXEC_PATH using `FALLBACK_TOOLCHAIN_INFO`
if 'arm_gcc' in folders and 'platform' in folders:
RTT_EXEC_PATH = ''
for path in folders:
if path != 'platform':
RTT_EXEC_PATH = RTT_EXEC_PATH + path + os.sep
else:
break
RTT_EXEC_PATH = os.path.join(RTT_EXEC_PATH, 'repo', 'Extract', 'ToolChain_Support_Packages', FALLBACK_TOOLCHAIN_VENDOR, FALLBACK_TOOLCHAIN_PKG, FALLBACK_TOOLCHAIN_VER, 'bin')
# Override the 'RTT_RISCV_TOOLCHAIN' only if the `RT-Thread ENV` is from the RT-Thread Studio
if 'platform' in folders:
os.environ['RTT_RISCV_TOOLCHAIN'] = RTT_EXEC_PATH
# cross_tool provides the cross compiler
# EXEC_PATH is the compiler path, for example, GNU RISC-V toolchain, IAR
if CROSS_TOOL == 'gcc':
PLATFORM = 'gcc'
if os.getenv('RTT_RISCV_TOOLCHAIN'):
EXEC_PATH = os.getenv('RTT_RISCV_TOOLCHAIN')
elif RTT_EXEC_PATH:
EXEC_PATH = RTT_EXEC_PATH
else:
EXEC_PATH = r'/opt/riscv-gnu-gcc/bin'
else:
print("CROSS_TOOL = {} not yet supported" % CROSS_TOOL)
BUILD = 'flash_debug'
if PLATFORM == 'gcc':
PREFIX = 'riscv32-unknown-elf-'
CC = PREFIX + 'gcc'
CXX = PREFIX + 'g++'
AS = PREFIX + 'gcc'
AR = PREFIX + 'ar'
LINK = PREFIX + 'gcc'
GDB = PREFIX + 'gdb'
TARGET_EXT = 'elf'
SIZE = PREFIX + 'size'
OBJDUMP = PREFIX + 'objdump'
OBJCPY = PREFIX + 'objcopy'
STRIP = PREFIX + 'strip'
ARCH_ABI = ' -mcmodel=medlow '
DEVICE = ARCH_ABI + ' -DUSE_NONVECTOR_MODE=1 ' + ' -ffunction-sections -fdata-sections -fno-common '
CFLAGS = DEVICE
AFLAGS = CFLAGS
LFLAGS = ARCH_ABI + ' --specs=nano.specs --specs=nosys.specs -u _printf_float -u _scanf_float -nostartfiles -Wl,--gc-sections '
CPATH = ''
LPATH = ''
if BUILD == 'ram_debug':
CFLAGS += ' -gdwarf-2'
AFLAGS += ' -gdwarf-2'
CFLAGS += ' -O0'
LFLAGS += ' -O0'
LINKER_FILE = 'board/linker_scripts/gcc/ram_rtt.ld'
elif BUILD == 'ram_release':
CFLAGS += ' -O2'
LFLAGS += ' -O2'
LINKER_FILE = 'board/linker_scripts/gcc/ram_rtt.ld'
elif BUILD == 'flash_debug':
CFLAGS += ' -gdwarf-2'
AFLAGS += ' -gdwarf-2'
CFLAGS += ' -O0'
LFLAGS += ' -O0'
CFLAGS += ' -DFLASH_XIP=1'
LINKER_FILE = 'board/linker_scripts/gcc/flash_rtt.ld'
elif BUILD == 'flash_release':
CFLAGS += ' -O2'
LFLAGS += ' -O2'
CFLAGS += ' -DFLASH_XIP=1'
LINKER_FILE = 'board/linker_scripts/gcc/flash_rtt.ld'
else:
CFLAGS += ' -O2'
LFLAGS += ' -O2'
LINKER_FILE = 'board/linker_scripts/gcc/flash_rtt.ld'
LFLAGS += ' -T ' + LINKER_FILE
POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
# module setting
CXXFLAGS = CFLAGS + ' -Woverloaded-virtual -fno-exceptions -fno-rtti '
CFLAGS = CFLAGS + ' -std=gnu11'
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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