#!/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  $T.aaa	exit 1} die() {	echo "$@"	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 $code | sed -e 's/.*Code: //'` marker=`expr index "$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 "	.byte 0x" > $T.s	echo $beforemark | sed -e 's/ /,0x/g' | sed -e 's/<//g' | sed -e 's/>//g' >> $T.s	as $AFLAGS -o $T.o $T.s &> /dev/null	objdump -S $T.o | grep -v "/tmp" | grep -v "Disassembly" | grep -v "\.text" | grep -v "^$" &> $T.ooo	cat $T.ooo >> $T.oo	rm -f $T.o $T.s  $T.ooo # and fix code at-and-after marker	code=`echo "$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'`echo -n "	.byte 0x" > $T.secho $code >> $T.sas $AFLAGS -o $T.o $T.s &> /dev/nullobjdump -S $T.o | grep -v "Disassembly" | grep -v "/tmp" | grep -v "\.text" | grep -v "^$" &> $T.aaacat $T.aaa >> $T.aa faultline=`cat $T.aaa | head -1 | cut -d":" -f2` cat $T.oo | sed -e "s/\($faultline\)/\*\1     <-- trapping instruction/g"echocat $T.aacleanup