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import os
import sys
from building import *
# toolchains options
ARCH ='arm'
CPU ='cortex-m4'
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')
PLATFORM = 'gcc'
EXEC_PATH = RTT_ROOT + '/../prebuilts/gcc/linux-x86/arm/gcc-arm-none-eabi-10-2020-q4-major-x86_64-linux/bin/'
BUILD = 'release'
if os.getenv('RTT_EXEC_PATH'):
EXEC_PATH = os.getenv('RTT_EXEC_PATH')
if PLATFORM == 'gcc':
# toolchains
# PREFIX = 'arm-none-eabi-'
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'
DEVICE = ' -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=hard -ffunction-sections -fdata-sections --specs=nano.specs'
CFLAGS = DEVICE + ' -std=gnu99 -Wall -g -Wno-stringop-truncation -Wall -Werror=maybe-uninitialized -Werror=implicit-function-declaration -Werror=return-type -Werror=address -Werror=int-to-pointer-cast -Werror=pointer-to-int-cast'
AFLAGS = DEVICE + ' -c -x assembler-with-cpp -Wa,-mimplicit-it=thumb -D__ASSEMBLY__'
LINK_SCRIPT = 'gcc_xip_off.ld.S'
LFLAGS = DEVICE + ' -lm -lgcc -lc' + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,Reset_Handler -T gcc_xip_off.ld'
CPATH = ''
LPATH = ''
if BUILD == 'debug':
CFLAGS += ' -O0 -gdwarf-2'
AFLAGS += ' -gdwarf-2'
else:
CFLAGS += ' -O2'
CXXFLAGS = CFLAGS
DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
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