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#!/bin/env python3
import os
import sys
import subprocess
import shutil
import utils
from conf import conf
from conf import sf
import exceptions
import loop
def all():
base()
parse_kconfig()
gen_requred()
gen_nbscript()
def base():
try: os.mkdir(conf.build_folder)
except FileExistsError:
pass
if os.path.isfile(sf(conf.phase_file)):
print("Warning: file " + conf.phase_file + " already exists. Not overwritten.")
else:
loop.phase_set(1)
if os.path.isfile(sf(conf.iteration_file)):
print("Warning: file " + conf.iteration_file + " already exists. Not overwritten.")
else:
loop.iteration_reset()
def parse_kconfig():
"Execute parse_kconfig in linux_sources directory."
env = dict(os.environ)
wd = os.getcwd()
os.chdir(sf(conf.linux_sources))
if conf.parse_kconfig_output:
subprocess.call([sf(conf.parse_kconfig), sf(conf.linux_kconfig_head), sf(conf.build_folder), "-v", "-v"], env=utils.get_kernel_env())
else:
subprocess.call([sf(conf.parse_kconfig), sf(conf.linux_kconfig_head), sf(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(sf(conf.linux_dot_config)):
raise exceptions.MissingFile(sf(conf.linux_dot_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(sf(conf.required_file))
os.remove(sf(conf.dot_config_fragment_file))
except OSError:
pass
shutil.copy(sf(conf.linux_dot_config), sf(conf.dot_config_back_file))
with open(sf(conf.linux_dot_config), 'r') as f:
with open(sf(conf.required_file), 'w') as freq:
with open(sf(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
def gen_nbscript():
if os.path.isfile(sf(conf.nbscript)):
print("Warning: file " + conf.nbscript +
" already exists. Generation skipped.")
return
with open(sf(conf.nbscript), 'w') as f:
f.write('# generated novaboot script. Please don\'t edit unless you know what are you doing.\n')
f.write('load ' + sf(conf.linux_image) + ' console=ttyS0,115200\n')
f.write('load ' + sf(conf.buildroot_initram) + '\n')
#################################################################################
if __name__ == '__main__':
all()
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