import os

# toolchains options
ARCH     = 'arm'
CPU      = 's3c24x0'
TextBase = '0x30000000'

CROSS_TOOL 	= 'gcc'

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

if  CROSS_TOOL == 'gcc':
    PLATFORM 	= 'gcc'
    EXEC_PATH 	= '/opt/gcc-arm-none-eabi-6_2-2016q4/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'
    STRIP = PREFIX + 'strip'

    DEVICE = ' -mcpu=arm920t'
    CFLAGS = DEVICE
    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp' + ' -DTEXT_BASE=' + TextBase
    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread_mini2440.map,-cref,-u,_start  -nostartfiles -T mini2440_ram.ld' + ' -Ttext ' + TextBase

    # module setting 
    CXXFLAGS = ' -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 -static-libgcc'
    M_POST_ACTION = STRIP + ' -R .hash $TARGET\n' + SIZE + ' $TARGET \n'

    CPATH = ''
    LPATH = ''

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

    POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'

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

    DEVICE = ' --device DARMSS9'
    CFLAGS = DEVICE + ' --apcs=interwork --diag_suppress=870'
    AFLAGS = DEVICE
    LFLAGS = DEVICE + ' --strict --info sizes --info totals --info unused --info veneers --list rtthread-mini2440.map --ro-base 0x30000000 --entry Entry_Point --first Entry_Point'

    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 --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'

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

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