#!/bin/sh# Disassemble the Code: line in Linux oopses# usage: decodecode < oops.file## options: set env. variable AFLAGS=options to pass options to "as";# e.g., to decode an i386 oops on an x86_64 system, use:# AFLAGS=--32 decodecode < 386.oops cleanup() {	rm -f $T $T.s $T.o $T.oo $T.aa $T.dis	exit 1} die() {	echo "$@"	exit 1} trap cleanup EXIT T=`mktemp` || die "cannot create temp file"code= while read i ; do case "$i" in*Code:*)	code=$i	;;esac done if [ -z "$code" ]; then	rm $T	exitfi echo $codecode=`echo $code | sed -e 's/.*Code: //'` width=`expr index "$code" ' '`width=$[($width-1)/2]case $width in1) type=byte ;;2) type=2byte ;;4) type=4byte ;;esac disas() {	${CROSS_COMPILE}as $AFLAGS -o $1.o $1.s &> /dev/null 	if [ "$ARCH" == "arm" ]; then		if [ $width == 2 ]; then			OBJDUMPFLAGS="-M force-thumb"		fi 		${CROSS_COMPILE}strip $1.o	fi 	${CROSS_COMPILE}objdump $OBJDUMPFLAGS -S $1.o | \		grep -v "/tmp\|Disassembly\|\.text\|^$" &> $1.dis} marker=`expr index "$code" "\<"`if [ $marker -eq 0 ]; then	marker=`expr index "$code" "\("`fi touch $T.ooif [ $marker -ne 0 ]; then	echo All code >> $T.oo	echo ======== >> $T.oo	beforemark=`echo "$code"`	echo -n "	.$type 0x" > $T.s	echo $beforemark | sed -e 's/ /,0x/g; s/[<>()]//g' >> $T.s	disas $T	cat $T.dis >> $T.oo	rm -f $T.o $T.s $T.dis # and fix code at-and-after marker	code=`echo "$code" | cut -c$((${marker} + 1))-`fiecho Code starting with the faulting instruction  > $T.aaecho =========================================== >> $T.aacode=`echo $code | sed -e 's/ [<(]/ /;s/[>)] / /;s/ /,0x/g; s/[>)]$//'`echo -n "	.$type 0x" > $T.secho $code >> $T.sdisas $Tcat $T.dis >> $T.aa faultline=`cat $T.dis | head -1 | cut -d":" -f2`faultline=`echo "$faultline" | sed -e 's/\[/\\\[/g; s/\]/\\\]/g'` cat $T.oo | sed -e "s/\($faultline\)/\*\1     <-- trapping instruction/g"echocat $T.aacleanup