ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / src / linux-headers-5.4.0-216-generic / scripts

#!/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=
cont=

while read i ; do

case "$i" in
*Code:*)
	code=$i
	cont=yes
	;;
*)
	[ -n "$cont" ] && {
		xdump="$(echo $i | grep '^[[:xdigit:]<>[:space:]]\+$')"
		if [ -n "$xdump" ]; then
			code="$code $xdump"
		else
			cont=
		fi
	}
	;;
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

if [ -z "$ARCH" ]; then
    case `uname -m` in
	aarch64*) ARCH=arm64 ;;
	arm*) ARCH=arm ;;
    esac
fi

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

if [ "$ARCH" = "arm64" ]; then
		if [ $width -eq 4 ]; then
			type=inst
		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

[+] ..
[-] ld-version.sh [edit]
[+] package
[-] stackusage [edit]
[-] pnmtologo.c [edit]
[-] gcc-plugin.sh [edit]
[-] setlocalversion [edit]
[-] stackdelta [edit]
[-] .kallsyms.cmd [edit]
[-] checkkconfigsymbols.py [edit]
[-] extract-cert.c [edit]
[-] extract-sys-certs.pl [edit]
[-] unifdef.c [edit]
[-] Makefile.extrawarn [edit]
[-] Makefile.kcov [edit]
[-] documentation-file-ref-check [edit]
[-] parse-maintainers.pl [edit]
[-] Makefile.ubsan [edit]
[+] atomic
[-] checksyscalls.sh [edit]
[-] spdxcheck-test.sh [edit]
[-] recordmcount.h [edit]
[-] mkuboot.sh [edit]
[-] kallsyms.c [edit]
[-] link-vmlinux.sh [edit]
[-] .sortextable.cmd [edit]
[-] .bin2c.cmd [edit]
[-] sortextable.h [edit]
[-] show_delta [edit]
[-] Makefile.gcc-plugins [edit]
[-] ver_linux [edit]
[-] leaking_addresses.pl [edit]
[-] subarch.include [edit]
[-] check_extable.sh [edit]
[-] gcc-ld [edit]
[-] diffconfig [edit]
[-] bpf_helpers_doc.py [edit]
[-] decode_stacktrace.sh [edit]
[-] split-man.pl [edit]
[-] makelst [edit]
[-] .asn1_compiler.cmd [edit]
[-] recordmcount [edit]
[-] mkcompile_h [edit]
[-] module-common.lds [edit]
[-] kmsg-doc [edit]
[-] Makefile [edit]
[-] Makefile.modbuiltin [edit]
[-] gcc-goto.sh [edit]
[-] mksysmap [edit]
[-] modules-check.sh [edit]
[-] nsdeps [edit]
[-] gcc-x86_64-has-stack-protector.sh [edit]
[-] ubuntu-retpoline-extract-one [edit]
[-] .recordmcount.cmd [edit]
[-] gen_compile_commands.py [edit]
[-] find-unused-docs.sh [edit]
[-] coccicheck [edit]
[-] gfp-translate [edit]
[-] Makefile.kasan [edit]
[-] config [edit]
[-] bin2c [edit]
[-] adjust_autoksyms.sh [edit]
[-] asn1_compiler.c [edit]
[+] mod
[-] cc-can-link.sh [edit]
[+] selinux
[-] checkpatch.pl [edit]
[+] coccinelle
[-] .insert-sys-cert.cmd [edit]
[-] Makefile.modfinal [edit]
[-] headers_check.pl [edit]
[-] recordmcount.c [edit]
[-] sphinx-pre-install [edit]
[-] Makefile.modsign [edit]
[-] headers_install.sh [edit]
[-] patch-kernel [edit]
[-] xz_wrap.sh [edit]
[+] dtc
[+] basic
[+] tracing
[-] headerdep.pl [edit]
[-] const_structs.checkpatch [edit]
[-] extract_xc3028.pl [edit]
[-] tags.sh [edit]
[-] get_dvb_firmware [edit]
[-] Makefile.build [edit]
[-] clang-version.sh [edit]
[-] tools-support-relr.sh [edit]
[-] gcc-x86_32-has-stack-protector.sh [edit]
[-] bootgraph.pl [edit]
[-] gen_ksymdeps.sh [edit]
[-] asn1_compiler [edit]
[-] Makefile.clean [edit]
[-] spdxcheck.py [edit]
[-] decodecode [edit]
[-] kallsyms [edit]
[-] insert-sys-cert.c [edit]
[-] extract-module-sig.pl [edit]
[+] gdb
[-] sortextable.c [edit]
[-] prune-kernel [edit]
[+] kconfig
[-] cleanfile [edit]
[-] namespace.pl [edit]
[-] checkincludes.pl [edit]
[-] faddr2line [edit]
[-] checkstack.pl [edit]
[-] .conmakehash.cmd [edit]
[-] mkmakefile [edit]
[-] extract-cert [edit]
[-] Makefile.lib [edit]
[+] ksymoops
[-] profile2linkerlist.pl [edit]
[-] gcc-version.sh [edit]
[-] Makefile.modpost [edit]
[-] recordmcount.pl [edit]
[-] extract-ikconfig [edit]
[-] bloat-o-meter [edit]
[-] Makefile.dtbinst [edit]
[-] kernel-doc [edit]
[-] Lindent [edit]
[+] gcc-plugins
[-] cleanpatch [edit]
[-] bin2c.c [edit]
[-] xen-hypercalls.sh [edit]
[-] markup_oops.pl [edit]
[-] checkversion.pl [edit]
[-] conmakehash.c [edit]
[-] sortextable [edit]
[-] Makefile.headersinst [edit]
[-] export_report.pl [edit]
[+] genksyms
[-] get_abi.pl [edit]
[-] conmakehash [edit]
[-] Makefile.asm-generic [edit]
[-] objdiff [edit]
[-] .extract-cert.cmd [edit]
[-] sign-file.c [edit]
[-] depmod.sh [edit]
[-] file-size.sh [edit]
[-] Makefile.modinst [edit]
[-] Kconfig.include [edit]
[-] Makefile.host [edit]
[-] extract-vmlinux [edit]
[-] get_maintainer.pl [edit]
[-] Makefile.package [edit]
[-] spelling.txt [edit]
[-] .sign-file.cmd [edit]
[-] Kbuild.include [edit]
[-] sign-file [edit]
[-] insert-sys-cert [edit]