Merge tag 'tty-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
[platform/kernel/linux-rpi.git] / scripts / objdump-func
1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # Disassemble a single function.
5 #
6 # usage: objdump-func <file> <func>
7
8 set -o errexit
9 set -o nounset
10
11 OBJDUMP="${CROSS_COMPILE:-}objdump"
12
13 command -v gawk >/dev/null 2>&1 || die "gawk isn't installed"
14
15 usage() {
16         echo "usage: objdump-func <file> <func>" >&2
17         exit 1
18 }
19
20 [[ $# -lt 2 ]] && usage
21
22 OBJ=$1; shift
23 FUNC=$1; shift
24
25 # Secret feature to allow adding extra objdump args at the end
26 EXTRA_ARGS=$@
27
28 # Note this also matches compiler-added suffixes like ".cold", etc
29 ${OBJDUMP} -wdr $EXTRA_ARGS $OBJ | gawk -M -v f=$FUNC '/^$/ { P=0; } $0 ~ "<" f "(\\..*)?>:" { P=1; O=strtonum("0x" $1); } { if (P) { o=strtonum("0x" $1); printf("%04x ", o-O); print $0; } }'