import os
import sys
import osconfig

if os.getenv('OS_ROOT'):
    OS_ROOT = os.getenv('OS_ROOT')
else:
    OS_ROOT = os.path.normpath(os.getcwd() + '/../..')

sys.path = sys.path + [os.path.join(OS_ROOT, 'scripts')]
try:
    from build_tools import *
except:
    print('Cannot found oneos root directory, please check OS_ROOT')
    print(OS_ROOT)
    exit(-1)

RESULT = 'oneos.' + osconfig.RESULT_SUFFIX

env = Environment(tools = ['mingw'],
    AS = osconfig.AS, ASFLAGS = osconfig.AFLAGS,
    CC = osconfig.CC, CCFLAGS = osconfig.CFLAGS,
    AR = osconfig.AR, ARFLAGS = '-rc',
    CXX = osconfig.CXX, CXXFLAGS = osconfig.CXXFLAGS,
    LINK = osconfig.LINK, LINKFLAGS = osconfig.LFLAGS)
env.PrependENVPath('PATH', osconfig.COMPILER_PATH)

if osconfig.COMPILER == 'iar':
    env.Replace(CCCOM = ['$CC $CCFLAGS $CPPFLAGS $_CPPDEFFLAGS $_CPPINCFLAGS -o $TARGET $SOURCES'])
    env.Replace(ARFLAGS = [''])
    env.Replace(LINKCOM = env["LINKCOM"] + ' --map oneos.map')

Export('OS_ROOT')
Export('osconfig')

# prepare building environment
objs = SetupCompile(env, OS_ROOT, has_libcpu=False)

Import('kernel_vdir')

# make a building
StartCompile(RESULT, objs)