import os # toolchains options ARCH ='arm' CPU ='cortex-a7' CROSS_TOOL ='gcc' 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') PLATFORM = 'gcc' EXEC_PATH = r'/opt/gcc-arm-none-eabi-4_8-2014q1_gri/bin' if os.getenv('RTT_EXEC_PATH'): EXEC_PATH = os.getenv('RTT_EXEC_PATH') BUILD = 'debug' if PLATFORM == 'gcc': # toolchains PREFIX = 'arm-none-eabi-' 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 = ' -mfpu=neon-vfpv4 -mfloat-abi=softfp -march=armv7-a -mtune=cortex-a7 -ftree-vectorize -ffast-math' CFLAGS = DEVICE + ' -Wall' AFLAGS = ' -c' + ' -x assembler-with-cpp -D__ASSEMBLY__' LFLAGS = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors -T link.lds' CPATH = '' LPATH = '' if BUILD == 'debug': CFLAGS += ' -O0 -gdwarf-2' AFLAGS += ' -gdwarf-2' else: CFLAGS += ' -O2' CXXFLAGS = CFLAGS DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n' POST_ACTION = OBJCPY + ' -O binary $TARGET kernel7.img\n' + SIZE + ' $TARGET \n'