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 conf import sf
   9 from exceptions import MissingFile
  10
  11 def parse_kconfig():
  12         "Execute parse_kconfig in linux_sources directory."
  13         env = dict(os.environ)
  14         wd = os.getcwd()
  15         os.chdir(sf(conf.linux_sources))
  16         if conf.parse_kconfig_output:
  17                 subprocess.call([sf(conf.parse_kconfig), sf(conf.linux_kconfig_head), sf(conf.build_folder), "-v", "-v"], env=utils.get_kernel_env())
  18         else:
  19                 subprocess.call([sf(conf.parse_kconfig), sf(conf.linux_kconfig_head), sf(conf.build_folder)], env=utils.get_kernel_env())
  20
  21         os.chdir(wd)
  22
  23 def gen_requred():
  24         "Generates required depenpency from .config file in linux source tree."
  25
  26         if not os.path.isfile(sf(conf.linux_dot_config)):
  27                 raise MissingFile(sf(conf.linux_dot_config),
  28                                 'Generate initial configuration. Execute make defconfig in linux folder. Or use make menuconfig and change configuration.')
  29
  30         utils.build_symbol_map() # Ensure smap existence
  31         srmap = {value:key for key, value in utils.smap.items()}
  32
  33         try:
  34                 os.remove(sf(conf.required_file))
  35                 os.remove(sf(conf.dot_config_fragment_file))
  36         except OSError:
  37                 pass
  38
  39         shutil.copy(sf(conf.linux_dot_config), sf(conf.dot_config_back_file))
  40
  41         with open(sf(conf.linux_dot_config), 'r') as f:
  42                 with open(sf(conf.required_file), 'w') as freq:
  43                         with open(sf(conf.dot_config_fragment_file), 'w') as fconf:
  44                                 for line in f:
  45                                         if (line[0] == '#') or (not '=' in line):
  46                                                 continue
  47                                         indx = line.index('=')
  48                                         if (line[7:indx] == "MODULES"): # skip if modules set
  49                                                 raise exceptions.ConfigurationError("Initial kernel configuration must have MODULES disabled.")
  50                                         if (line[indx + 1] == 'y'):
  51                                                 freq.write(srmap[line[7:indx]] + "\n")
  52                                         elif (line[indx + 1] == 'n' or line[indx + 1] == 'm'):
  53                                                 freq.write("-" + srmap[line[7:indx]] + "\n")
  54                                         else:
  55                                                 fconf.write(line);
  56                         freq.write("-" + srmap["MODULES"] + "\n"); # force modules no