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- import os
- # toolchains options
- ARCH='arm'
- CPU='cortex-a'
- CROSS_TOOL='gcc'
- if os.getenv('RTT_CC'):
- CROSS_TOOL = os.getenv('RTT_CC')
- # only support GNU GCC compiler.
- PLATFORM = 'gcc'
- EXEC_PATH = '/usr/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'
- STRIP = PREFIX + 'strip'
- DEVICE = ' -march=armv7-a -marm -msoft-float'
- CFLAGS = DEVICE + ' -Wall'
- AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -D__ASSEMBLY__ -I.'
- LINK_SCRIPT = 'link.lds'
- LFLAGS = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors'+\
- ' -T %s' % LINK_SCRIPT
- CPATH = ''
- LPATH = ''
- # generate debug info in all cases
- AFLAGS += ' -gdwarf-2'
- CFLAGS += ' -g -gdwarf-2'
- if BUILD == 'debug':
- CFLAGS += ' -O0'
- else:
- CFLAGS += ' -O2'
- CXXFLAGS = CFLAGS + ' -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 -nostdlib -static-libgcc'
- M_POST_ACTION = STRIP + ' -R .hash $TARGET\n' + SIZE + ' $TARGET \n'
- POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' +\
- SIZE + ' $TARGET \n'
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