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# Copyright 2021-2022 hpmicro
# SPDX-License-Identifier: BSD-3-Clause
import os
import sys
# toolchains options
ARCH='risc-v'
CPU='hpmicro'
CHIP_NAME='HPM6750'
CROSS_TOOL='gcc'
# bsp lib config
BSP_LIBRARY_TYPE = None
if os.getenv('RTT_CC'):
CROSS_TOOL = os.getenv('RTT_CC')
# cross_tool provides the cross compiler
# EXEC_PATH is the compilercute path, for example, CodeSourcery, Keil MDK, 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'
DEVICE = ' -std=gnu11 -DUSE_NONVECTOR_MODE=1'
ARCH_ABI = ' -mcmodel=medlow '
CFLAGS = DEVICE + ARCH_ABI + ' -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/ram_rtt.ld'
LFLAGS += ' -T ' + LINKER_FILE
POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
# module setting
CXXFLAGS = ' -Woverloaded-virtual -fno-exceptions -fno-rtti '
M_CFLAGS = CFLAGS + ' -mlong-calls -fPIC '
M_CXXFLAGS = CXXFLAGS + ' -mlong-calls -fPIC'
M_LFLAGS = DEVICE + CXXFLAGS + ' -Wl,--gc-sections,-z,max-page-size=0x4' +\
' -shared -fPIC -nostartfiles -static-libgcc'
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