From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Thu, 18 Jul 2013 10:47:05 +0000 (+0000)
Subject: build: implement kernel module dependency tracking
X-Git-Tag: fast2504n-3.10.28-merged~1974
X-Git-Url: https://git.enpas.org/?a=commitdiff_plain;h=d2f3ca4c6e48070cc7c14b3a4821793220e36b3c;p=openwrt.git

build: implement kernel module dependency tracking

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37386 3c298f89-4303-0410-b956-a3cf2f4a3e73
---

diff --git a/scripts/gen-dependencies.sh b/scripts/gen-dependencies.sh
index df8073ea33..f324ba6c44 100755
--- a/scripts/gen-dependencies.sh
+++ b/scripts/gen-dependencies.sh
@@ -8,6 +8,7 @@
 SELF=${0##*/}
 
 READELF="${READELF:-readelf}"
+OBJCOPY="${OBJCOPY:-objcopy}"
 TARGETS=$*
 XARGS="${XARGS:-xargs -r}"
 
@@ -22,3 +23,12 @@ find $TARGETS -type f -a -exec file {} \; | \
   $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 | \
+		egrep -a '^depends=' | \
+		sed -e 's,^depends=,,' -e 's/,/\n/g' | \
+		awk '{ print $1 ".ko" }'
+done