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import os
# toolchains options
ARCH = 'aarch64'
CPU = 'cortex-a'
CROSS_TOOL = 'gcc'
if os.getenv('RTT_ROOT'):
RTT_ROOT = os.getenv('RTT_ROOT')
else:
RTT_ROOT = os.path.join(os.getcwd(), '..', '..', '..')
if os.getenv('RTT_CC'):
CROSS_TOOL = os.getenv('RTT_CC')
# only support GNU GCC compiler.
PLATFORM = 'gcc'
EXEC_PATH = r'/opt/gcc-arm-8.3-2019.03-x86_64-aarch64-elf/bin/'
if os.getenv('RTT_EXEC_PATH'):
EXEC_PATH = os.getenv('RTT_EXEC_PATH')
BUILD = 'debug'
if PLATFORM == 'gcc':
# toolchains
PREFIX = os.getenv('RTT_CC_PREFIX') or 'aarch64-none-elf-'
CC = PREFIX + 'gcc'
CXX = PREFIX + 'g++'
CPP = PREFIX + 'cpp'
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-a55'
DEVICE += ' -fno-omit-frame-pointer -ffunction-sections -fdata-sections'
CPPFLAGS = ' -E -P -x assembler-with-cpp'
CFLAGS = DEVICE + ' -Wall -Wno-cpp'
AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -D__ASSEMBLY__'
LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors -T link.lds'
CPATH = ''
LPATH = ''
if BUILD == 'debug':
CFLAGS += ' -O0 -ggdb'
CPPFLAGS += ' -O0 -ggdb'
else:
CFLAGS += ' -O2 -ggdb'
CPPFLAGS += ' -O2 -ggdb'
POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' +\
SIZE + ' $TARGET \n'
DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > disasm.txt\n'
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