import os
import sys
import rtconfig
import re
RTT_ROOT = os.getenv('RTT_ROOT') or os.path.join('..', '..', '..', '..')

sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
from building import *

def bsp_pkg_check():
    import subprocess

    check_paths = [
        os.path.join("packages", "nxp-imx6ul-sdk-latest"),
    ]

    need_update = not all(os.path.exists(p) for p in check_paths)

    if need_update:
        print("\n===============================================================================")
        print("Dependency packages missing, please running 'pkgs --update'...")
        print("If no packages are fetched, run 'pkgs --upgrade' first, then 'pkgs --update'...")
        print("===============================================================================")
        exit(1)

RegisterPreBuildingAction(bsp_pkg_check)

TARGET = 'rtthread.' + rtconfig.TARGET_EXT

content = ""
TRACE_CONFIG = ''
with open("rtconfig.h") as f:
    for line in f.readlines():
        if line.find("RT_BACKTRACE_FUNCTION_NAME") != -1:
            for token in line.split(" "):
                if re.match(r'RT_BACKTRACE_FUNCTION_NAME$', token, flags=0):
                    TRACE_CONFIG = " -mpoke-function-name"

DefaultEnvironment(tools=[])
env = Environment(tools = ['mingw'],
    AS   = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS + TRACE_CONFIG,
    CC   = rtconfig.CC, CFLAGS = rtconfig.CFLAGS + TRACE_CONFIG,
    CXX  = rtconfig.CXX, CXXFLAGS = rtconfig.CXXFLAGS + TRACE_CONFIG,
    AR   = rtconfig.AR, ARFLAGS = '-rc',
    LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
env['ASCOM'] = env['ASPPCOM']
env['LINKCOM'] = '$LINK -o $TARGET $LINKFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS -Wl,--start-group $_LIBFLAGS -Wl,--end-group'

Export('RTT_ROOT')
Export('rtconfig')

# prepare building environment
objs = PrepareBuilding(env, RTT_ROOT)

if GetDepend('RT_USING_SMART'):
    # use smart link.lds
    env['LINKFLAGS'] = env['LINKFLAGS'].replace('link.lds', 'link_smart.lds')

# make a building
DoBuilding(TARGET, objs)