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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>
65 lines
1.1 KiB
Bash
65 lines
1.1 KiB
Bash
#!/bin/sh
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# Disassemble the Code: line in Linux oopses
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# usage: decodecode < oops.file
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#
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# options: set env. variable AFLAGS=options to pass options to "as";
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# e.g., to decode an i386 oops on an x86_64 system, use:
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# AFLAGS=--32 decodecode < 386.oops
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cleanup() {
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rm -f $T $T.s $T.o
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exit 1
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}
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die() {
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echo "$@"
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exit 1
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}
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trap cleanup EXIT
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T=`mktemp` || die "cannot create temp file"
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code=
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while read i ; do
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case "$i" in
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*Code:*)
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code=$i
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;;
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esac
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done
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if [ -z "$code" ]; then
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rm $T
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exit
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fi
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echo $code
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code=`echo $code | sed -e 's/.*Code: //'`
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marker=`expr index "$code" "\<"`
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if [ $marker -eq 0 ]; then
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marker=`expr index "$code" "\("`
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fi
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if [ $marker -ne 0 ]; then
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beforemark=`echo "$code" | cut -c-$((${marker} - 1))`
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echo -n " .byte 0x" > $T.s
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echo $beforemark | sed -e 's/ /,0x/g' >> $T.s
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as $AFLAGS -o $T.o $T.s
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objdump -S $T.o
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rm $T.o $T.s
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# and fix code at-and-after marker
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code=`echo "$code" | cut -c$((${marker} + 1))-`
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fi
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code=`echo $code | sed -e 's/ [<(]/ /;s/[>)] / /;s/ /,0x/g'`
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echo -n " .byte 0x" > $T.s
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echo $code >> $T.s
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as $AFLAGS -o $T.o $T.s
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objdump -S $T.o
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rm $T $T.s $T.o
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