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Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/decodecode | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/scripts/decodecode b/scripts/decodecode new file mode 100644 index 000000000000..1e1a8f620c47 --- /dev/null +++ b/scripts/decodecode @@ -0,0 +1,51 @@ +#!/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 + +T=`mktemp` +code= + +while read i ; do + +case "$i" in +*Code:*) + code=$i + ;; +esac + +done + +if [ -z "$code" ]; then + 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.o $T.s |