openwrt/scripts/gen-dependencies.sh
Jo-Philipp Wich 2e5411518f scripts: gen-dependencies.sh: fix kmod dependency generation
Do not output faulty ".ko" dependency if a scanned .ko file has an empty
"depends=" specification, also replace the `grep | sed | awk` chain with a
single sed program.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 44206
2015-01-29 21:59:10 +00:00

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#!/usr/bin/env bash
#
# Copyright (C) 2012 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
SELF=${0##*/}
READELF="${READELF:-readelf}"
OBJCOPY="${OBJCOPY:-objcopy}"
TARGETS=$*
XARGS="${XARGS:-xargs -r}"
[ -z "$TARGETS" ] && {
echo "$SELF: no directories / files specified"
echo "usage: $SELF [PATH...]"
exit 1
}
find $TARGETS -type f -a -exec file {} \; | \
sed -n -e 's/^\(.*\):.*ELF.*\(executable\|shared object\).*,.* stripped/\1/p' | \
$XARGS -n1 $READELF -d | \
awk '$2 ~ /NEEDED/ && $NF !~ /interpreter/ && $NF ~ /^\[?lib.*\.so/ { gsub(/[\[\]]/, "", $NF); print $NF }' | \
sort -u
tmp=`mktemp $TMP_DIR/dep.XXXXXXXX`
for kmod in `find $TARGETS -type f -name \*.ko`; do
$OBJCOPY -O binary -j .modinfo $kmod $tmp
sed -e 's,\x00,\n,g' $tmp | \
sed -ne '/^depends=.\+/ { s/^depends=//; s/\(,\|$\)/.ko\n/gp; q }'
done | sort -u
rm -f $tmp