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import os
import sys
import subprocess
import time
import hashlib
import re
from conf import conf
from conf import sf
import exceptions
def build_symbol_map():
"""Generates global variable smap from symbol_map_file.
When file not exists, MissingFile exception is raised.
"""
global smap
try:
smap
except NameError:
# Check if symbol_map_file exist
if not os.path.isfile(sf(conf.symbol_map_file)):
raise exceptions.MissingFile(sf(conf.symbol_map_file),
"Run parse_kconfig to generate it.")
smap = dict()
with open(sf(conf.symbol_map_file)) as f:
for lnn in f:
w = lnn.rstrip().split(sep=':')
smap[int(w[0])] = w[1]
def callsubprocess(process_name, process, show_output = True,
return_output = False, env=os.environ, allowed_exit_codes = [0]):
sprc = subprocess.Popen(process, stdout = subprocess.PIPE, env = env)
try:
os.mkdir(os.path.join(sf(conf.log_folder), process_name))
except OSError:
pass
rtn = []
with open(os.path.join(sf(conf.log_folder),
process_name, time.strftime("%y-%m-%d-%H-%M-%S") + ".log"),
"a") as f:
f.write('::' + time.strftime("%y-%m-%d-%H-%M-%S-%f") + '::\n')
for linen in sprc.stdout:
line = linen.decode(sys.getdefaultencoding())
f.write(line)
if show_output:
print(line, end="")
if return_output:
rtn.append(line.rstrip())
rtncode = sprc.wait()
if rtncode not in allowed_exit_codes:
raise exceptions.ProcessFailed(process, rtncode)
return rtn
def get_kernel_env():
env = dict(os.environ)
env.update(conf.kernel_env)
return env
def hash_config(cf):
"""Hashes configuration using MD5 hash.
"""
try:
cf.remove(0)
except ValueError:
pass
str = ""
for c in cf:
if c < 0:
str += '-'
else:
str += '+'
hsh = hashlib.md5(bytes(str, sys.getdefaultencoding()))
return hsh.hexdigest()
def config_strtoint(str, full):
"""Reads list of configured symbols from string
"""
rtn = []
if full:
for s in str.rstrip().split(sep=' '):
rtn.append(int(s))
else:
count = 0
with open(sf(conf.variable_count_file)) as f:
f.readline()
count = int(f.readline())
for s in str.rstrip().split(sep=' '):
val = int(s)
if abs(val) <= count:
rtn.append(val)
else:
break;
try:
rtn.remove(0)
except ValueError:
pass
return rtn
def get_config_from_hash(hash):
with open(sf(conf.config_map_file), "r") as f:
for line in f:
w = line.rstrip().split(sep=':')
if w[0] == hash:
return config_strtoint(w[1], True)
return None
def get_last_configuration():
hsh = ""
try:
with open(sf(conf.config_solved_file), "r") as f:
for line in f:
sline = line.rstrip()
if sline != '':
hsh = sline
except FileNotFoundError:
try:
with open(sf(conf.config_map_file), "r") as f:
w = f.readline().split(sep=':')
hsh = w[0]
except FileNotFoundError:
pass
if hsh != '':
return hsh
else:
return 'NoConfig'
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