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📄 Kbuild.include	15,468 B	[ EDIT ] \| [ DEL ]
📄 Kconfig.include	1,173 B	[ EDIT ] \| [ DEL ]
📄 Lindent	502 B	[ EDIT ] \| [ DEL ]
📄 Makefile	1,741 B	[ EDIT ] \| [ DEL ]
📄 Makefile.asm-generic	1,193 B	[ EDIT ] \| [ DEL ]
📄 Makefile.build	19,707 B	[ EDIT ] \| [ DEL ]
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📄 Makefile.gcc-plugins	1,861 B	[ EDIT ] \| [ DEL ]
📄 Makefile.headersinst	4,079 B	[ EDIT ] \| [ DEL ]
📄 Makefile.host	6,520 B	[ EDIT ] \| [ DEL ]
📄 Makefile.kasan	1,679 B	[ EDIT ] \| [ DEL ]
📄 Makefile.kcov	319 B	[ EDIT ] \| [ DEL ]
📄 Makefile.kcsan	118 B	[ EDIT ] \| [ DEL ]
📄 Makefile.lib	15,535 B	[ EDIT ] \| [ DEL ]
📄 Makefile.modbuiltin	1,717 B	[ EDIT ] \| [ DEL ]
📄 Makefile.modinst	1,149 B	[ EDIT ] \| [ DEL ]
📄 Makefile.modpost	5,430 B	[ EDIT ] \| [ DEL ]
📄 Makefile.modsign	897 B	[ EDIT ] \| [ DEL ]
📄 Makefile.ubsan	951 B	[ EDIT ] \| [ DEL ]
📄 adjust_autoksyms.sh	3,010 B	[ EDIT ] \| [ DEL ]
📄 asn1_compiler	28,008 B	[ EDIT ] \| [ DEL ]
📄 asn1_compiler.c	36,391 B	[ EDIT ] \| [ DEL ]
📄 bin2c	7,024 B	[ EDIT ] \| [ DEL ]
📄 bin2c.c	743 B	[ EDIT ] \| [ DEL ]
📄 bloat-o-meter	3,313 B	[ EDIT ] \| [ DEL ]
📄 bootgraph.pl	6,426 B	[ EDIT ] \| [ DEL ]
📄 bpf_doc.py	25,515 B	[ EDIT ] \| [ DEL ]
📄 cc-can-link.sh	166 B	[ EDIT ] \| [ DEL ]
📄 check_00index.sh	1,333 B	[ EDIT ] \| [ DEL ]
📄 check_extable.sh	5,049 B	[ EDIT ] \| [ DEL ]
📄 checkincludes.pl	1,984 B	[ EDIT ] \| [ DEL ]
📄 checkkconfigsymbols.py	15,895 B	[ EDIT ] \| [ DEL ]
📄 checkpatch.pl	197,173 B	[ EDIT ] \| [ DEL ]
📄 checkstack.pl	5,303 B	[ EDIT ] \| [ DEL ]
📄 checksyscalls.sh	7,094 B	[ EDIT ] \| [ DEL ]
📄 checkversion.pl	1,938 B	[ EDIT ] \| [ DEL ]
📄 clang-version.sh	635 B	[ EDIT ] \| [ DEL ]
📄 cleanfile	3,538 B	[ EDIT ] \| [ DEL ]
📄 cleanpatch	5,178 B	[ EDIT ] \| [ DEL ]
📄 coccicheck	7,407 B	[ EDIT ] \| [ DEL ]
📄 config	4,635 B	[ EDIT ] \| [ DEL ]
📄 conmakehash	11,616 B	[ EDIT ] \| [ DEL ]
📄 conmakehash.c	6,128 B	[ EDIT ] \| [ DEL ]
📄 const_structs.checkpatch	964 B	[ EDIT ] \| [ DEL ]
📄 decode_stacktrace.sh	3,834 B	[ EDIT ] \| [ DEL ]
📄 decodecode	2,525 B	[ EDIT ] \| [ DEL ]
📄 depmod.sh	1,119 B	[ EDIT ] \| [ DEL ]
📄 diffconfig	3,821 B	[ EDIT ] \| [ DEL ]
📄 documentation-file-ref-check	3,548 B	[ EDIT ] \| [ DEL ]
📄 export_report.pl	4,654 B	[ EDIT ] \| [ DEL ]
📄 extract-cert	11,616 B	[ EDIT ] \| [ DEL ]
📄 extract-cert.c	3,541 B	[ EDIT ] \| [ DEL ]
📄 extract-ikconfig	1,734 B	[ EDIT ] \| [ DEL ]
📄 extract-module-sig.pl	3,742 B	[ EDIT ] \| [ DEL ]
📄 extract-sys-certs.pl	3,832 B	[ EDIT ] \| [ DEL ]
📄 extract-vmlinux	1,725 B	[ EDIT ] \| [ DEL ]
📄 extract_xc3028.pl	45,665 B	[ EDIT ] \| [ DEL ]
📄 faddr2line	6,303 B	[ EDIT ] \| [ DEL ]
📄 file-size.sh	86 B	[ EDIT ] \| [ DEL ]
📄 find-unused-docs.sh	1,310 B	[ EDIT ] \| [ DEL ]
📄 gcc-goto.sh	530 B	[ EDIT ] \| [ DEL ]
📄 gcc-ld	711 B	[ EDIT ] \| [ DEL ]
📄 gcc-plugin.sh	1,090 B	[ EDIT ] \| [ DEL ]
📄 gcc-version.sh	857 B	[ EDIT ] \| [ DEL ]
📄 gcc-x86_32-has-stack-protector.sh	173 B	[ EDIT ] \| [ DEL ]
📄 gcc-x86_64-has-stack-protector.sh	198 B	[ EDIT ] \| [ DEL ]
📄 gen_initramfs_list.sh	8,224 B	[ EDIT ] \| [ DEL ]
📄 get_dvb_firmware	25,824 B	[ EDIT ] \| [ DEL ]
📄 get_maintainer.pl	67,369 B	[ EDIT ] \| [ DEL ]
📄 gfp-translate	1,752 B	[ EDIT ] \| [ DEL ]
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📄 headers_install.sh	1,397 B	[ EDIT ] \| [ DEL ]
📄 insert-sys-cert.c	9,084 B	[ EDIT ] \| [ DEL ]
📄 kallsyms	19,992 B	[ EDIT ] \| [ DEL ]
📄 kallsyms.c	18,580 B	[ EDIT ] \| [ DEL ]
📄 kernel-doc	62,560 B	[ EDIT ] \| [ DEL ]
📄 ld-version.sh	269 B	[ EDIT ] \| [ DEL ]
📄 leaking_addresses.pl	13,160 B	[ EDIT ] \| [ DEL ]
📄 link-vmlinux.sh	9,176 B	[ EDIT ] \| [ DEL ]
📄 makelst	808 B	[ EDIT ] \| [ DEL ]
📄 markup_oops.pl	8,273 B	[ EDIT ] \| [ DEL ]
📄 mkcompile_h	2,628 B	[ EDIT ] \| [ DEL ]
📄 mkmakefile	1,218 B	[ EDIT ] \| [ DEL ]
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📄 module-common.lds	901 B	[ EDIT ] \| [ DEL ]
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📄 objdiff	2,917 B	[ EDIT ] \| [ DEL ]
📄 parse-maintainers.pl	4,646 B	[ EDIT ] \| [ DEL ]
📄 patch-kernel	10,185 B	[ EDIT ] \| [ DEL ]
📄 pnmtologo	15,720 B	[ EDIT ] \| [ DEL ]
📄 pnmtologo.c	12,197 B	[ EDIT ] \| [ DEL ]
📄 profile2linkerlist.pl	410 B	[ EDIT ] \| [ DEL ]
📄 prune-kernel	708 B	[ EDIT ] \| [ DEL ]
📄 recordmcount	24,008 B	[ EDIT ] \| [ DEL ]
📄 recordmcount.c	17,062 B	[ EDIT ] \| [ DEL ]
📄 recordmcount.h	16,772 B	[ EDIT ] \| [ DEL ]
📄 recordmcount.pl	18,709 B	[ EDIT ] \| [ DEL ]
📄 setlocalversion	4,013 B	[ EDIT ] \| [ DEL ]
📄 show_delta	3,076 B	[ EDIT ] \| [ DEL ]
📄 sign-file	15,768 B	[ EDIT ] \| [ DEL ]
📄 sign-file.c	9,994 B	[ EDIT ] \| [ DEL ]
📄 sortextable	15,712 B	[ EDIT ] \| [ DEL ]
📄 sortextable.c	10,411 B	[ EDIT ] \| [ DEL ]
📄 sortextable.h	5,614 B	[ EDIT ] \| [ DEL ]
📄 spelling.txt	25,611 B	[ EDIT ] \| [ DEL ]
📄 sphinx-pre-install	14,378 B	[ EDIT ] \| [ DEL ]
📄 split-man.pl	600 B	[ EDIT ] \| [ DEL ]
📄 stackdelta	1,883 B	[ EDIT ] \| [ DEL ]
📄 stackusage	794 B	[ EDIT ] \| [ DEL ]
📄 subarch.include	641 B	[ EDIT ] \| [ DEL ]
📄 tags.sh	9,789 B	[ EDIT ] \| [ DEL ]
📄 test_fortify.sh	2,281 B	[ EDIT ] \| [ DEL ]
📄 unifdef	36,192 B	[ EDIT ] \| [ DEL ]
📄 unifdef.c	35,637 B	[ EDIT ] \| [ DEL ]
📄 ver_linux	2,747 B	[ EDIT ] \| [ DEL ]
📄 xen-hypercalls.sh	386 B	[ EDIT ] \| [ DEL ]
📄 xz_wrap.sh	562 B	[ EDIT ] \| [ DEL ]

[ CLOSE ]

EDIT: faddr2line

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Translate stack dump function offsets.
#
# addr2line doesn't work with KASLR addresses.  This works similarly to
# addr2line, but instead takes the 'func+0x123' format as input:
#
#   $ ./scripts/faddr2line ~/k/vmlinux meminfo_proc_show+0x5/0x568
#   meminfo_proc_show+0x5/0x568:
#   meminfo_proc_show at fs/proc/meminfo.c:27
#
# If the address is part of an inlined function, the full inline call chain is
# printed:
#
#   $ ./scripts/faddr2line ~/k/vmlinux native_write_msr+0x6/0x27
#   native_write_msr+0x6/0x27:
#   arch_static_branch at arch/x86/include/asm/msr.h:121
#    (inlined by) static_key_false at include/linux/jump_label.h:125
#    (inlined by) native_write_msr at arch/x86/include/asm/msr.h:125
#
# The function size after the '/' in the input is optional, but recommended.
# It's used to help disambiguate any duplicate symbol names, which can occur
# rarely.  If the size is omitted for a duplicate symbol then it's possible for
# multiple code sites to be printed:
#
#   $ ./scripts/faddr2line ~/k/vmlinux raw_ioctl+0x5
#   raw_ioctl+0x5/0x20:
#   raw_ioctl at drivers/char/raw.c:122
#
#   raw_ioctl+0x5/0xb1:
#   raw_ioctl at net/ipv4/raw.c:876
#
# Multiple addresses can be specified on a single command line:
#
#   $ ./scripts/faddr2line ~/k/vmlinux type_show+0x10/45 free_reserved_area+0x90
#   type_show+0x10/0x2d:
#   type_show at drivers/video/backlight/backlight.c:213
#
#   free_reserved_area+0x90/0x123:
#   free_reserved_area at mm/page_alloc.c:6429 (discriminator 2)

set -o errexit
set -o nounset

READELF="${CROSS_COMPILE:-}readelf"
ADDR2LINE="${CROSS_COMPILE:-}addr2line"
SIZE="${CROSS_COMPILE:-}size"
NM="${CROSS_COMPILE:-}nm"

command -v awk >/dev/null 2>&1 || die "awk isn't installed"
command -v ${READELF} >/dev/null 2>&1 || die "readelf isn't installed"
command -v ${ADDR2LINE} >/dev/null 2>&1 || die "addr2line isn't installed"
command -v ${SIZE} >/dev/null 2>&1 || die "size isn't installed"
command -v ${NM} >/dev/null 2>&1 || die "nm isn't installed"

usage() {
	echo "usage: faddr2line [--list] <object file> <func+offset> <func+offset>..." >&2
	exit 1
}

warn() {
	echo "$1" >&2
}

die() {
	echo "ERROR: $1" >&2
	exit 1
}

# Try to figure out the source directory prefix so we can remove it from the
# addr2line output.  HACK ALERT: This assumes that start_kernel() is in
# kernel/init.c!  This only works for vmlinux.  Otherwise it falls back to
# printing the absolute path.
find_dir_prefix() {
	local objfile=$1

local start_kernel_addr=$(${READELF} -sW $objfile | awk '$8 == "start_kernel" {printf "0x%s", $2}')
	[[ -z $start_kernel_addr ]] && return

local file_line=$(${ADDR2LINE} -e $objfile $start_kernel_addr)
	[[ -z $file_line ]] && return

local prefix=${file_line%init/main.c:*}
	if [[ -z $prefix ]] || [[ $prefix = $file_line ]]; then
		return
	fi

DIR_PREFIX=$prefix
	return 0
}

__faddr2line() {
	local objfile=$1
	local func_addr=$2
	local dir_prefix=$3
	local print_warnings=$4

local func=${func_addr%+*}
	local offset=${func_addr#*+}
	offset=${offset%/*}
	local size=
	[[ $func_addr =~ "/" ]] && size=${func_addr#*/}

if [[ -z $func ]] || [[ -z $offset ]] || [[ $func = $func_addr ]]; then
		warn "bad func+offset $func_addr"
		DONE=1
		return
	fi

# Go through each of the object's symbols which match the func name.
	# In rare cases there might be duplicates.
	file_end=$(${SIZE} -Ax $objfile | awk '$1 == ".text" {print $2}')
	while read symbol; do
		local fields=($symbol)
		local sym_base=0x${fields[0]}
		local sym_type=${fields[1]}
		local sym_end=${fields[3]}

# calculate the size
		local sym_size=$(($sym_end - $sym_base))
		if [[ -z $sym_size ]] || [[ $sym_size -le 0 ]]; then
			warn "bad symbol size: base: $sym_base end: $sym_end"
			DONE=1
			return
		fi
		sym_size=0x$(printf %x $sym_size)

# calculate the address
		local addr=$(($sym_base + $offset))
		if [[ -z $addr ]] || [[ $addr = 0 ]]; then
			warn "bad address: $sym_base + $offset"
			DONE=1
			return
		fi
		addr=0x$(printf %x $addr)

# weed out non-function symbols
		if [[ $sym_type != t ]] && [[ $sym_type != T ]]; then
			[[ $print_warnings = 1 ]] &&
				echo "skipping $func address at $addr due to non-function symbol of type '$sym_type'"
			continue
		fi

# if the user provided a size, make sure it matches the symbol's size
		if [[ -n $size ]] && [[ $size -ne $sym_size ]]; then
			[[ $print_warnings = 1 ]] &&
				echo "skipping $func address at $addr due to size mismatch ($size != $sym_size)"
			continue;
		fi

# make sure the provided offset is within the symbol's range
		if [[ $offset -gt $sym_size ]]; then
			[[ $print_warnings = 1 ]] &&
				echo "skipping $func address at $addr due to size mismatch ($offset > $sym_size)"
			continue
		fi

# separate multiple entries with a blank line
		[[ $FIRST = 0 ]] && echo
		FIRST=0

# pass real address to addr2line
		echo "$func+$offset/$sym_size:"
		local file_lines=$(${ADDR2LINE} -fpie $objfile $addr | sed "s; $dir_prefix$\./$*; ;")
		[[ -z $file_lines ]] && return

if [[ $LIST = 0 ]]; then
			echo "$file_lines" | while read -r line
			do
				echo $line
			done
			DONE=1;
			return
		fi

# show each line with context
		echo "$file_lines" | while read -r line
		do
			echo
			echo $line
			n=$(echo $line | sed 's/.*:$[0-9]\+$.*/\1/g')
			n1=$[$n-5]
			n2=$[$n+5]
			f=$(echo $line | sed 's/.*at $.\+$:.*/\1/g')
			awk 'NR>=strtonum("'$n1'") && NR<=strtonum("'$n2'") { if (NR=='$n') printf(">%d<", NR); else printf(" %d ", NR); printf("\t%s\n", $0)}' $f
		done

DONE=1

done < <(${NM} -n $objfile | awk -v fn=$func -v end=$file_end '$3 == fn { found=1; line=$0; start=$1; next } found == 1 { found=0; print line, "0x"$1 } END {if (found == 1) print line, end; }')
}

[[ $# -lt 2 ]] && usage

objfile=$1

LIST=0
[[ "$objfile" == "--list" ]] && LIST=1 && shift && objfile=$1

[[ ! -f $objfile ]] && die "can't find objfile $objfile"
shift

DIR_PREFIX=supercalifragilisticexpialidocious
find_dir_prefix $objfile

FIRST=1
while [[ $# -gt 0 ]]; do
	func_addr=$1
	shift

# print any matches found
	DONE=0
	__faddr2line $objfile $func_addr $DIR_PREFIX 0

# if no match was found, print warnings
	if [[ $DONE = 0 ]]; then
		__faddr2line $objfile $func_addr $DIR_PREFIX 1
		warn "no match for $func_addr"
	fi
done