acpi_pad: build only on X86
[linux-2.6/linux-acpi-2.6.git] / scripts / decodecode
blob4b00647814bc46c9525dfc6e806d28af7641f9d6
1 #!/bin/sh
2 # Disassemble the Code: line in Linux oopses
3 # usage: decodecode < oops.file
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
9 cleanup() {
10 rm -f $T $T.s $T.o $T.oo $T.aa $T.aaa
11 exit 1
14 die() {
15 echo "$@"
16 exit 1
19 trap cleanup EXIT
21 T=`mktemp` || die "cannot create temp file"
22 code=
24 while read i ; do
26 case "$i" in
27 *Code:*)
28 code=$i
30 esac
32 done
34 if [ -z "$code" ]; then
35 rm $T
36 exit
39 echo $code
40 code=`echo $code | sed -e 's/.*Code: //'`
42 marker=`expr index "$code" "\<"`
43 if [ $marker -eq 0 ]; then
44 marker=`expr index "$code" "\("`
47 touch $T.oo
48 if [ $marker -ne 0 ]; then
49 echo All code >> $T.oo
50 echo ======== >> $T.oo
51 beforemark=`echo "$code"`
52 echo -n " .byte 0x" > $T.s
53 echo $beforemark | sed -e 's/ /,0x/g' | sed -e 's/<//g' | sed -e 's/>//g' >> $T.s
54 as $AFLAGS -o $T.o $T.s &> /dev/null
55 objdump -S $T.o | grep -v "/tmp" | grep -v "Disassembly" | grep -v "\.text" | grep -v "^$" &> $T.ooo
56 cat $T.ooo >> $T.oo
57 rm -f $T.o $T.s $T.ooo
59 # and fix code at-and-after marker
60 code=`echo "$code" | cut -c$((${marker} + 1))-`
62 echo Code starting with the faulting instruction > $T.aa
63 echo =========================================== >> $T.aa
64 code=`echo $code | sed -e 's/ [<(]/ /;s/[>)] / /;s/ /,0x/g'`
65 echo -n " .byte 0x" > $T.s
66 echo $code >> $T.s
67 as $AFLAGS -o $T.o $T.s &> /dev/null
68 objdump -S $T.o | grep -v "Disassembly" | grep -v "/tmp" | grep -v "\.text" | grep -v "^$" &> $T.aaa
69 cat $T.aaa >> $T.aa
71 faultline=`cat $T.aaa | head -1 | cut -d":" -f2`
73 cat $T.oo | sed -e "s/\($faultline\)/\*\1 <-- trapping instruction/g"
74 echo
75 cat $T.aa
76 cleanup