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- import os
- # toolchains options
- ARCH ='arm'
- CPU ='cortex-a'
- RTT_ROOT = os.getenv('RTT_ROOT') or r'../../..'
- CROSS_TOOL = os.getenv('RTT_CC') or 'gcc'
- PLATFORM = 'gcc'
- EXEC_PATH = os.getenv('RTT_EXEC_PATH') or r'/opt/gcc-arm-none-eabi-5_4-2016q3/bin/'
- BUILD = os.getenv('RTT_BUILD') or 'debug'
- if PLATFORM == 'gcc':
- # toolchains
- # PREFIX = 'arm-none-eabi-'
- PREFIX = os.getenv('RTT_CC_PREFIX') or '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 = ' -march=armv8-a -mtune=cortex-a72 -ftree-vectorize -ffast-math -funwind-tables -fno-strict-aliasing'
- CXXFLAGS= DEVICE + ' -Wall'
- CFLAGS = DEVICE + ' -Wall -std=gnu99'
- AFLAGS = ' -c' + ' -x assembler-with-cpp -D__ASSEMBLY__'
- LFLAGS = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors -T link.lds ' + ' -lsupc++ -lgcc '
- CPATH = ''
- LPATH = ''
- if BUILD == 'debug':
- CFLAGS += ' -O0 -gdwarf-2'
- CXXFLAGS += ' -O0 -gdwarf-2'
- AFLAGS += ' -gdwarf-2'
- else:
- CFLAGS += ' -Os'
- CXXFLAGS += ' -Os'
- CXXFLAGS += ' -Woverloaded-virtual -fno-exceptions -fno-rtti'
- DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
- POST_ACTION = OBJCPY + ' -O binary $TARGET kernel7.img\n' + SIZE + ' $TARGET \n'
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