fa220d89ad
Remove the tmp file when exiting. Noticed by Arjan van de Ven. Catch mktemp failure and exit with message. Trap kill or other signals and exit cleanly. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
64 lines
1.1 KiB
Bash
64 lines
1.1 KiB
Bash
#!/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
|