forked from rpms/kernel
150 lines
3.6 KiB
Python
Executable File
150 lines
3.6 KiB
Python
Executable File
#!/usr/bin/python3
|
|
#
|
|
# check-kabi - Red Hat kABI reference checking tool
|
|
#
|
|
# We use this script to check against reference Module.kabi files.
|
|
#
|
|
# Author: Jon Masters <jcm@redhat.com>
|
|
# Copyright (C) 2007-2009 Red Hat, Inc.
|
|
#
|
|
# This software may be freely redistributed under the terms of the GNU
|
|
# General Public License (GPL).
|
|
|
|
# Changelog:
|
|
#
|
|
# 2018/06/01 - Update for python3 by Petr Oros.
|
|
# 2009/08/15 - Updated for use in RHEL6.
|
|
# 2007/06/13 - Initial rewrite in python by Jon Masters.
|
|
|
|
__author__ = "Jon Masters <jcm@redhat.com>"
|
|
__version__ = "2.0"
|
|
__date__ = "2009/08/15"
|
|
__copyright__ = "Copyright (C) 2007-2009 Red Hat, Inc"
|
|
__license__ = "GPL"
|
|
|
|
import getopt
|
|
import string
|
|
import sys
|
|
|
|
true = 1
|
|
false = 0
|
|
|
|
|
|
def load_symvers(symvers, filename):
|
|
"""Load a Module.symvers file."""
|
|
|
|
symvers_file = open(filename, "r")
|
|
|
|
while true:
|
|
in_line = symvers_file.readline()
|
|
if in_line == "":
|
|
break
|
|
if in_line == "\n":
|
|
continue
|
|
checksum, symbol, directory, type = in_line.split()
|
|
|
|
symvers[symbol] = in_line[0:-1]
|
|
|
|
|
|
def load_kabi(kabi, filename):
|
|
"""Load a Module.kabi file."""
|
|
|
|
kabi_file = open(filename, "r")
|
|
|
|
while true:
|
|
in_line = kabi_file.readline()
|
|
if in_line == "":
|
|
break
|
|
if in_line == "\n":
|
|
continue
|
|
checksum, symbol, directory, type = in_line.split()
|
|
|
|
kabi[symbol] = in_line[0:-1]
|
|
|
|
|
|
def check_kabi(symvers, kabi):
|
|
"""Check Module.kabi and Module.symvers files."""
|
|
|
|
fail = 0
|
|
warn = 0
|
|
changed_symbols = []
|
|
moved_symbols = []
|
|
|
|
for symbol in kabi:
|
|
abi_hash, abi_sym, abi_dir, abi_type = kabi[symbol].split()
|
|
if symbol in symvers:
|
|
sym_hash, sym_sym, sym_dir, sym_type = symvers[symbol].split()
|
|
if abi_hash != sym_hash:
|
|
fail = 1
|
|
changed_symbols.append(symbol)
|
|
|
|
if abi_dir != sym_dir:
|
|
warn = 1
|
|
moved_symbols.append(symbol)
|
|
else:
|
|
fail = 1
|
|
changed_symbols.append(symbol)
|
|
|
|
if fail:
|
|
print("*** ERROR - ABI BREAKAGE WAS DETECTED ***")
|
|
print("")
|
|
print("The following symbols have been changed (this will cause an ABI breakage):")
|
|
print("")
|
|
for symbol in changed_symbols:
|
|
print(symbol)
|
|
print("")
|
|
|
|
if warn:
|
|
print("*** WARNING - ABI SYMBOLS MOVED ***")
|
|
print("")
|
|
print("The following symbols moved (typically caused by moving a symbol from being")
|
|
print("provided by the kernel vmlinux out to a loadable module):")
|
|
print("")
|
|
for symbol in moved_symbols:
|
|
print(symbol)
|
|
print("")
|
|
|
|
"""Halt the build, if we got errors and/or warnings. In either case,
|
|
double-checkig is required to avoid introducing / concealing
|
|
KABI inconsistencies."""
|
|
if fail or warn:
|
|
sys.exit(1)
|
|
sys.exit(0)
|
|
|
|
|
|
def usage():
|
|
print("""
|
|
check-kabi: check Module.kabi and Module.symvers files.
|
|
|
|
check-kabi [ -k Module.kabi ] [ -s Module.symvers ]
|
|
|
|
""")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
|
symvers_file = ""
|
|
kabi_file = ""
|
|
|
|
opts, args = getopt.getopt(sys.argv[1:], 'hk:s:')
|
|
|
|
for o, v in opts:
|
|
if o == "-s":
|
|
symvers_file = v
|
|
if o == "-h":
|
|
usage()
|
|
sys.exit(0)
|
|
if o == "-k":
|
|
kabi_file = v
|
|
|
|
if (symvers_file == "") or (kabi_file == ""):
|
|
usage()
|
|
sys.exit(1)
|
|
|
|
symvers = {}
|
|
kabi = {}
|
|
|
|
load_symvers(symvers, symvers_file)
|
|
load_kabi(kabi, kabi_file)
|
|
check_kabi(symvers, kabi)
|