projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| dcecc6c7 RD |
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 | ||
| 9 | T=`mktemp` | |
| 10 | code= | |
| 11 | ||
| 12 | while read i ; do | |
| 13 | ||
| 14 | case "$i" in | |
| 15 | *Code:*) | |
| 16 | code=$i | |
| 17 | ;; | |
| 18 | esac | |
| 19 | ||
| 20 | done | |
| 21 | ||
| 22 | if [ -z "$code" ]; then | |
| 23 | exit | |
| 24 | fi | |
| 25 | ||
| 26 | echo $code | |
| 27 | code=`echo $code | sed -e 's/.*Code: //'` | |
| 28 | ||
| 29 | marker=`expr index "$code" "\<"` | |
| 30 | if [ $marker -eq 0 ]; then | |
| 31 | marker=`expr index "$code" "\("` | |
| 32 | fi | |
| 33 | ||
| 34 | if [ $marker -ne 0 ]; then | |
| 35 | beforemark=`echo "$code" | cut -c-$((${marker} - 1))` | |
| 36 | echo -n " .byte 0x" > $T.s | |
| 37 | echo $beforemark | sed -e 's/ /,0x/g' >> $T.s | |
| 38 | as $AFLAGS -o $T.o $T.s | |
| 39 | objdump -S $T.o | |
| 40 | rm $T.o $T.s | |
| 41 | ||
| 42 | # and fix code at-and-after marker | |
| 43 | code=`echo "$code" | cut -c$((${marker} + 1))-` | |
| 44 | fi | |
| 45 | ||
| 46 | code=`echo $code | sed -e 's/ [<(]/ /;s/[>)] / /;s/ /,0x/g'` | |
| 47 | echo -n " .byte 0x" > $T.s | |
| 48 | echo $code >> $T.s | |
| 49 | as $AFLAGS -o $T.o $T.s | |
| 50 | objdump -S $T.o | |
| 51 | rm $T.o $T.s |