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import os
import rtconfig
# toolchains options
ARCH='arm'
CPU='cortex-a'
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')
# only support GNU GCC compiler.
PLATFORM = 'gcc'
EXEC_PATH = r'/usr/lib/arm-none-eabi/bin'
if os.getenv('AARCH32_CROSS_PATH'):
EXEC_PATH = os.getenv('AARCH32_CROSS_PATH')
print('EXEC_PATH = {}'.format(EXEC_PATH))
else:
print('AARCH32_CROSS_PATH not found')
BUILD = 'debug'
LIBPATH = EXEC_PATH + r'/../lib'
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 = ' -g -DGUEST -ffreestanding -Wextra -g -mfpu=crypto-neon-fp-armv8 -mfloat-abi=softfp -march=armv8-a -fdiagnostics-color=always'
# CFLAGS = DEVICE + ' -Wall'
CFLAGS = DEVICE
AFLAGS = ' -c'+ DEVICE + ' -fsingle-precision-constant -fno-builtin -x assembler-with-cpp -D__ASSEMBLY__'
LINK_SCRIPT = 'link.lds'
LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread_a32.map,-cref,-u,system_vectors'+\
' -T %s' % LINK_SCRIPT
CPATH = ''
LPATH = LIBPATH
# generate debug info in all cases
AFLAGS += ' -gdwarf-2'
CFLAGS += ' -g -gdwarf-2'
if BUILD == 'debug':
CFLAGS += ' -O0'
else:
CFLAGS += ' -O2'
CXXFLAGS = CFLAGS
POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread_a32.bin\n' +\
SIZE + ' $TARGET \n'
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