threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
106 lines
2.2 KiB
Bash
Executable File
106 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
# 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
|