# Copyright 2021-2023 HPMicro # SPDX-License-Identifier: BSD-3-Clause import os import sys # toolchains options ARCH='risc-v' CPU='hpmicro' CHIP_NAME='HPM6280' 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') 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 ' CFLAGS = ARCH_ABI + ' -DUSE_NONVECTOR_MODE=1 ' + ' -ffunction-sections -fdata-sections -fno-common ' 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/ram_rtt.ld' elif BUILD == 'ram_release': CFLAGS += ' -O2 -Os' LFLAGS += ' -O2 -Os' LINKER_FILE = 'board/linker_scripts/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/flash_rtt.ld' elif BUILD == 'flash_release': CFLAGS += ' -O2 -Os' LFLAGS += ' -O2 -Os' CFLAGS += ' -DFLASH_XIP=1' LINKER_FILE = 'board/linker_scripts/flash_rtt.ld' else: CFLAGS += ' -O2 -Os' LFLAGS += ' -O2 -Os' LINKER_FILE = 'board/linker_scripts/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'