2017-11-01 13:30:17 +08:00
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import os
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# toolchains options
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ARCH='arm'
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CPU='cortex-a'
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CROSS_TOOL='gcc'
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if os.getenv('RTT_CC'):
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CROSS_TOOL = os.getenv('RTT_CC')
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2018-04-28 17:25:09 +08:00
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# only support GNU GCC compiler.
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PLATFORM = 'gcc'
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EXEC_PATH = '/opt/gcc-arm-none-eabi-4_8-2014q1_gri/bin'
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2017-11-01 13:30:17 +08:00
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if os.getenv('RTT_EXEC_PATH'):
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2018-04-28 17:25:09 +08:00
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EXEC_PATH = os.getenv('RTT_EXEC_PATH')
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2017-11-01 13:30:17 +08:00
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BUILD = 'debug'
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if PLATFORM == 'gcc':
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# toolchains
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PREFIX = 'arm-none-eabi-'
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CC = PREFIX + 'gcc'
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CXX = PREFIX + 'g++'
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AS = PREFIX + 'gcc'
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AR = PREFIX + 'ar'
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LINK = PREFIX + 'gcc'
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TARGET_EXT = 'elf'
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SIZE = PREFIX + 'size'
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OBJDUMP = PREFIX + 'objdump'
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OBJCPY = PREFIX + 'objcopy'
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DEVICE = ' -march=armv7-a -mtune=cortex-a9 -mfpu=vfpv3-d16 -ftree-vectorize -ffast-math -mfloat-abi=softfp'
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CFLAGS = DEVICE + ' -Wall'
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AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -D__ASSEMBLY__'
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LINK_SCRIPT = 'imx6.lds'
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LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread-imx6.map,-cref,-u,system_vectors'+\
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' -T %s' % LINK_SCRIPT
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CPATH = ''
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LPATH = ''
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# generate debug info in all cases
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AFLAGS += ' -gdwarf-2'
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CFLAGS += ' -g -gdwarf-2'
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if BUILD == 'debug':
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CFLAGS += ' -O0'
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else:
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CFLAGS += ' -O2'
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POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' +\
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SIZE + ' $TARGET \n'
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