import os

# toolchains options
ARCH = 'arm'
CPU  = 'AT91SAM7X'

CROSS_TOOL = 'gcc'

if os.getenv('RTT_CC'):
	CROSS_TOOL = os.getenv('RTT_CC')

if CROSS_TOOL == 'gcc':
	PLATFORM 	= 'gcc'
	EXEC_PATH 	= 'C:/Program Files/CodeSourcery/Sourcery_CodeBench_Lite_for_ARM_EABI/bin'
elif CROSS_TOOL == 'keil':
	PLATFORM 	= 'armcc'
	EXEC_PATH 	= 'C:/Keil'
elif CROSS_TOOL == 'iar':
    print('================ERROR============================')
    print('Not support iar yet!')
    print('=================================================')
    exit(0)

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'

    DEVICE = ' -mcpu=arm7tdmi'
    CFLAGS = DEVICE
    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp'
    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=sam7x_rom_gcc.map,-cref,-u,_start -T sam7x_rom.ld -nostartfiles'
    CPATH = ''
    LPATH = ''

    if BUILD == 'debug':
        CFLAGS += ' -O0 -gstabs+ -Wall'
        AFLAGS += ' -gstabs+'
    else:
        CFLAGS += ' -O2'

    POST_ACTION = OBJCPY + ' -O ihex $TARGET rtthread-sam7x.hex\n' + SIZE + ' $TARGET \n'

elif PLATFORM == 'armcc':
    # toolchains
    CC = 'armcc'
    CXX = 'armcc'    
    AS = 'armasm'
    AR = 'armar'
    LINK = 'armlink'
    TARGET_EXT = 'axf'

    DEVICE = ' --device DARMATS'
    CFLAGS = DEVICE + ' --apcs=interwork'
    AFLAGS = DEVICE
    LFLAGS = DEVICE + ' --strict --info sizes --info totals --info unused --info veneers --list sam7x_rom_armcc.map --scatter sam7x_rom.sct'

    CFLAGS += ' -I"' + EXEC_PATH + '/ARM/RV31/INC"'
    LFLAGS += ' --libpath "' + EXEC_PATH + '/ARM/RV31/LIB"'

    EXEC_PATH += '/arm/bin40/'

    if BUILD == 'debug':
        CFLAGS += ' -g -O0'
        AFLAGS += ' -g'
    else:
        CFLAGS += ' -O2'

    POST_ACTION = 'fromelf --i32 $TARGET --output rtthread-sam7x.hex \nfromelf -z $TARGET'

elif PLATFORM == 'iccarm':
    # toolchains
    CC = 'armcc'
    AS = 'armasm'
    AR = 'armar'
    LINK = 'armlink'

    CFLAGS = ''
    AFLAGS = ''
    LFLAGS = ''