1#!/bin/sh 2# Disassemble the Code: line in Linux oopses 3# usage: decodecode < oops.file 4# 5# options: set env. variable AFLAGS=options to pass options to "as"; 6# e.g., to decode an i386 oops on an x86_64 system, use: 7# AFLAGS=--32 decodecode < 386.oops 8 9cleanup() { 10 rm -f $T $T.s $T.o 11 exit 1 12} 13 14die() { 15 echo "$@" 16 exit 1 17} 18 19trap cleanup EXIT 20 21T=`mktemp` || die "cannot create temp file" 22code= 23 24while read i ; do 25 26case "$i" in 27*Code:*) 28 code=$i 29 ;; 30esac 31 32done 33 34if [ -z "$code" ]; then 35 rm $T 36 exit 37fi 38 39echo $code 40code=`echo $code | sed -e 's/.*Code: //'` 41 42marker=`expr index "$code" "\<"` 43if [ $marker -eq 0 ]; then 44 marker=`expr index "$code" "\("` 45fi 46 47if [ $marker -ne 0 ]; then 48 beforemark=`echo "$code" | cut -c-$((${marker} - 1))` 49 echo -n " .byte 0x" > $T.s 50 echo $beforemark | sed -e 's/ /,0x/g' >> $T.s 51 as $AFLAGS -o $T.o $T.s 52 objdump -S $T.o 53 rm $T.o $T.s 54 55# and fix code at-and-after marker 56 code=`echo "$code" | cut -c$((${marker} + 1))-` 57fi 58 59code=`echo $code | sed -e 's/ [<(]/ /;s/[>)] / /;s/ /,0x/g'` 60echo -n " .byte 0x" > $T.s 61echo $code >> $T.s 62as $AFLAGS -o $T.o $T.s 63objdump -S $T.o 64rm $T $T.s $T.o 65