linux-yocto/scripts/decodecode

#!/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 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 exit fi

echo $code code=echo $code | sed -e 's/.*Code: //'

marker=expr index "$code" "\<" if [ $marker -eq 0 ]; then marker=expr index "$code" "\(" fi

if [ $marker -ne 0 ]; then beforemark=echo "$code" | cut -c-$((${marker} - 1)) echo -n " .byte 0x" > $T.s echo $beforemark | sed -e 's/ /,0x/g' >> $T.s as $AFLAGS -o $T.o $T.s objdump -S $T.o rm $T.o $T.s

and fix code at-and-after marker

code=`echo "$code" | cut -c$((${marker} + 1))-`

fi

code=echo $code | sed -e 's/ [<(]/ /;s/[>)] / /;s/ /,0x/g' echo -n " .byte 0x" > $T.s echo $code >> $T.s as $AFLAGS -o $T.o $T.s objdump -S $T.o rm $T $T.s $T.o