#!/bin/sh# SPDX-License-Identifier: GPL-2.0 if [ -z "$SRCARCH" ]; then	echo 'sync-check.sh: error: missing $SRCARCH environment variable' >&2	exit 1fi FILES="include/linux/objtool_types.h" if [ "$SRCARCH" = "x86" ]; thenFILES="$FILESarch/x86/include/asm/nops.harch/x86/include/asm/inat_types.harch/x86/include/asm/orc_types.harch/x86/include/asm/emulate_prefix.harch/x86/lib/x86-opcode-map.txtarch/x86/tools/gen-insn-attr-x86.awkinclude/linux/static_call_types.h" SYNC_CHECK_FILES='arch/x86/include/asm/inat.harch/x86/include/asm/insn.harch/x86/lib/inat.carch/x86/lib/insn.c'fi check_2 () {  file1=$1  file2=$2   shift  shift   cmd="diff $* $file1 $file2 > /dev/null"   test -f $file2 && {    eval $cmd || {      echo "Warning: Kernel ABI header at '$file1' differs from latest version at '$file2'" >&2      echo diff -u $file1 $file2    }  }} check () {  file=$1   shift   check_2 tools/$file $file $*} if [ ! -d ../../kernel ] || [ ! -d ../../tools ] || [ ! -d ../objtool ]; then	exit 0fi cd ../.. while read -r file_entry; do    if [ -z "$file_entry" ]; then	continue    fi     check $file_entrydone <<EOF$FILESEOF if [ "$SRCARCH" = "x86" ]; then	for i in $SYNC_CHECK_FILES; do		check $i '-I "^.*\/\*.*__ignore_sync_check__.*\*\/.*$"'	donefi