Revision b17faba03fc72091f4d040b879def004316952ec authored by Shyam Sundar S K on 07 December 2016, 17:07:05 UTC, committed by Jon Mason on 23 December 2016, 21:10:35 UTC
When the underlying NTB H/W driver advertises more memory windows than the number of scratchpads available to setup MW's, it is likely that we may end up filling the remaining memory windows with garbage. So to avoid that, lets limit the memory windows that transport driver can setup based on the available scratchpads. Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
1 parent 872deb2
decodecode
#!/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 $T.oo $T.aa $T.dis
exit 1
}
die() {
echo "$@"
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 $code | sed -e 's/.*Code: //'`
width=`expr index "$code" ' '`
width=$((($width-1)/2))
case $width in
1) type=byte ;;
2) type=2byte ;;
4) type=4byte ;;
esac
disas() {
${CROSS_COMPILE}as $AFLAGS -o $1.o $1.s > /dev/null 2>&1
if [ "$ARCH" = "arm" ]; then
if [ $width -eq 2 ]; then
OBJDUMPFLAGS="-M force-thumb"
fi
${CROSS_COMPILE}strip $1.o
fi
${CROSS_COMPILE}objdump $OBJDUMPFLAGS -S $1.o | \
grep -v "/tmp\|Disassembly\|\.text\|^$" > $1.dis 2>&1
}
marker=`expr index "$code" "\<"`
if [ $marker -eq 0 ]; then
marker=`expr index "$code" "\("`
fi
touch $T.oo
if [ $marker -ne 0 ]; then
echo All code >> $T.oo
echo ======== >> $T.oo
beforemark=`echo "$code"`
echo -n " .$type 0x" > $T.s
echo $beforemark | sed -e 's/ /,0x/g; s/[<>()]//g' >> $T.s
disas $T
cat $T.dis >> $T.oo
rm -f $T.o $T.s $T.dis
# and fix code at-and-after marker
code=`echo "$code" | cut -c$((${marker} + 1))-`
fi
echo Code starting with the faulting instruction > $T.aa
echo =========================================== >> $T.aa
code=`echo $code | sed -e 's/ [<(]/ /;s/[>)] / /;s/ /,0x/g; s/[>)]$//'`
echo -n " .$type 0x" > $T.s
echo $code >> $T.s
disas $T
cat $T.dis >> $T.aa
# (lines of whole $T.oo) - (lines of $T.aa, i.e. "Code starting") + 3,
# i.e. the title + the "===..=" line (sed is counting from 1, 0 address is
# special)
faultlinenum=$(( $(wc -l $T.oo | cut -d" " -f1) - \
$(wc -l $T.aa | cut -d" " -f1) + 3))
faultline=`cat $T.dis | head -1 | cut -d":" -f2-`
faultline=`echo "$faultline" | sed -e 's/\[/\\\[/g; s/\]/\\\]/g'`
cat $T.oo | sed -e "${faultlinenum}s/^\(.*:\)\(.*\)/\1\*\2\t\t<-- trapping instruction/"
echo
cat $T.aa
cleanup
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