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import os
import sys
import subprocess
import shutil
import utils
from conf import conf
from exceptions import MissingFile
def parse_kconfig():
"Execute parse_kconfig in linux_sources directory."
env = dict(os.environ)
wd = os.getcwd()
os.chdir(conf.linux_sources)
if conf.parse_kconfig_output:
subprocess.call([conf.parse_kconfig, conf.linux_kconfig_head, conf.build_folder, "-v", "-v"], env=utils.get_kernel_env())
else:
subprocess.call([conf.parse_kconfig, conf.linux_kconfig_head, conf.build_folder], env=utils.get_kernel_env())
os.chdir(wd)
def gen_requred():
"Generates required depenpency from .config file in linux source tree."
if not os.path.isfile(conf.linux_sources + '/.config'):
raise MissingFile(conf.linux_sources + '/.config',
'Generate initial configuration. Execute make defconfig in linux folder. Or use make menuconfig and change configuration.')
utils.build_symbol_map() # Ensure smap existence
srmap = {value:key for key, value in utils.smap.items()}
try:
os.remove(conf.required_file)
os.remove(conf.dot_config_fragment_file)
except OSError:
pass
shutil.copy(conf.linux_dot_config, conf.dot_config_back_file)
with open(conf.linux_sources + '/.config', 'r') as f:
with open(conf.required_file, 'w') as freq:
with open(conf.dot_config_fragment_file, 'w') as fconf:
for line in f:
if (line[0] == '#') or (not '=' in line):
continue
indx = line.index('=')
if (line[7:indx] == "MODULES"): # skip if modules set
raise exceptions.ConfigurationError("Initial kernel configuration must have MODULES disabled.")
if (line[indx + 1] == 'y'):
freq.write(srmap[line[7:indx]] + "\n")
elif (line[indx + 1] == 'n' or line[indx + 1] == 'm'):
freq.write("-" + srmap[line[7:indx]] + "\n")
else:
fconf.write(line);
freq.write("-" + srmap["MODULES"] + "\n"); # force modules no
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