From b7e88136e8c72cb498a7a15eab224fb49233272a Mon Sep 17 00:00:00 2001
From: CoprDistGit <infra@openeuler.org>
Date: Tue, 10 Nov 2026 14:04:04 +0000
Subject: automatic import of OLK-6.6

---
 check-kabi | 164 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 164 insertions(+)
 create mode 100644 check-kabi

(limited to 'check-kabi')

diff --git a/check-kabi b/check-kabi
new file mode 100644
index 0000000..12c1e0d
--- /dev/null
+++ b/check-kabi
@@ -0,0 +1,164 @@
+#!/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:
+# 
+# 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 os
+import re
+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,*namespace = in_line.split('\t')
+
+		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,*namespace = in_line.split('\t')
+
+		kabi[symbol] = in_line[0:-1]
+
+def check_kabi(symvers,kabi):
+	"""Check Module.kabi and Module.symvers files."""
+
+	fail=0
+	warn=0
+	lost=0
+	changed_symbols=[]
+	moved_symbols=[]
+	losted_symbols=[]
+
+	for symbol in kabi:
+		abi_hash,abi_sym,abi_dir,abi_type,*abi_namespace = kabi[symbol].split('\t')
+		if symbol in symvers:
+			sym_hash,sym_sym,sym_dir,sym_type,*sym_namespace = symvers[symbol].split('\t')
+			if abi_hash != sym_hash:
+				fail=1
+				changed_symbols.append(symbol)
+
+			if abi_dir != sym_dir:
+				warn=1
+				moved_symbols.append(symbol)
+		else:
+			lost=1
+			losted_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 ("new kabi:")
+		for symbol in changed_symbols:
+			print (symvers[symbol])
+		print ("old kabi:")
+		for symbol in changed_symbols:
+			print (kabi[symbol])
+		print ("")
+
+	if lost:
+		print ("*** ERROR - ABI BREAKAGE WAS DETECTED ***")
+		print ("")
+		print ("The following symbols have been losted (this will cause an ABI breakage):")
+		print ("old kabi:")
+		for symbol in losted_symbols:
+			print (kabi[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 ("new kabi:")
+		for symbol in moved_symbols:
+			print (symvers[symbol])
+		print ("old kabi")
+		for symbol in moved_symbols:
+			print (kabi[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 or lost:
+		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)
+
-- 
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