scripts/initialize.py

   1 import os
   2 import sys
   3 import subprocess
   4 import shutil
   5
   6 import utils
   7 from conf import conf
   8 from exceptions import MissingFile
   9
  10 def parse_kconfig():
  11         "Execute parse_kconfig in linux_sources directory and parsed output is placed to build_folder."
  12         env = dict(os.environ)
  13         env['SRCARCH'] = conf.SRCARCH
  14         env['ARCH'] = conf.ARCH
  15         env['KERNELVERSION'] = 'KERNELVERSION' # hides error
  16         wd = os.getcwd()
  17         os.chdir(conf.linux_sources)
  18         if conf.parse_kconfig_output:
  19                 subprocess.call([conf.parse_kconfig, conf.linux_kconfig_head, conf.build_folder, "-v", "-v"], env=env)
  20         else:
  21                 subprocess.call([conf.parse_kconfig, conf.linux_kconfig_head, conf.build_folder], env=env)
  22
  23         os.chdir(wd)
  24
  25 def gen_requred():
  26         "Generates required depenpency from required file."
  27
  28         if not os.path.isfile(conf.linux_sources + '/.config'):
  29                 raise MissingFile(conf.linux_sources + '/.config',
  30                                 'Generate initial configuration. Execute make defconfig in linux folder. Or use make menuconfig and change configuration.')
  31
  32         utils.build_symbol_map() # Ensure smap existence
  33         srmap = {value:key for key, value in utils.smap.items()}
  34
  35         try:
  36                 os.remove(conf.required_file)
  37                 os.remove(conf.dot_config_fragment_file)
  38         except OSError:
  39                 pass
  40
  41         shutil.copy(conf.linux_dot_config, conf.dot_config_back_file)
  42
  43         with open(conf.linux_sources + '/.config', 'r') as f:
  44                 with open(conf.required_file, 'w') as freq:
  45                         with open(conf.dot_config_fragment_file, 'w') as fconf:
  46                                 for line in f:
  47                                         if (line[0] == '#') or (not '=' in line):
  48                                                 continue
  49                                         indx = line.index('=')
  50                                         if (line[indx + 1] == 'y' or line[indx + 1] == 'm'):
  51                                                 freq.write(srmap[line[7:indx]] + "\n")
  52                                         elif (line[indx + 1] == 'n'):
  53                                                 freq.write("-" + srmap[line[7:indx]] + "\n")
  54                                         else:
  55                                                 fconf.write(line);