sys: move extract.sh to sys/linux

1 files changed, 79 insertions, 0 deletions

diff --git a/sys/linux/extract.sh b/sys/linux/extract.sh
new file mode 100755
index 000000000..ed46356ad
--- /dev/null
+++ b/sys/linux/extract.sh
@@ -0,0 +1,79 @@
+#!/usr/bin/env bash
+# Copyright 2015 syzkaller project authors. All rights reserved.
+# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
+
+# Assuming x86 host, you also need to install:
+# sudo apt-get install gcc-aarch64-linux-gnu gcc-powerpc64le-linux-gnu gcc-arm-linux-gnueabihf
+
+if [ "$LINUX" == "" ]; then
+	if [ "$ANDROID" == "" ]; then
+		echo "usage: make extract LINUX=/linux/checkout]"
+		echo "OR: make extract ANDROID=/linux/checkout]"
+		exit 1
+	else
+		LINUX=$ANDROID
+		BUILD_FOR_ANDROID=yes
+	fi
+else
+	BUILD_FOR_ANDROID=no
+fi
+
+UPSTREAM_FILES="bpf.txt dri.txt fuse.txt input.txt ipc.txt
+		key.txt kvm.txt loop.txt perf.txt random.txt
+		sndcontrol.txt sndseq.txt sndtimer.txt
+		sys.txt test.txt tty.txt tun.txt vnet.txt
+		socket.txt socket_alg.txt socket_bluetooth.txt
+		socket_inet.txt socket_inet6.txt socket_inet_tcp.txt
+		socket_inet_udp.txt socket_inet_icmp.txt
+		socket_inet_sctp.txt socket_inet_dccp.txt
+		socket_kcm.txt socket_key.txt socket_netlink.txt
+		socket_netrom.txt socket_nfc.txt socket_unix.txt
+		socket_ipx.txt socket_ax25.txt socket_llc.txt
+		socket_packet.txt xattr.txt"
+
+ANDROID_FILES="tlk_device.txt ion.txt"
+
+if [ "$BUILD_FOR_ANDROID" == "no" ]; then
+	FILES="$UPSTREAM_FILES"
+else
+	FILES="$ANDROID_FILES"
+fi
+
+generate_arch() {
+	echo generating arch $1...
+	echo "cd $LINUX; make defconfig"
+	OUT=`(cd $LINUX; make ARCH=$2 CROSS_COMPILE=$3 CFLAGS=$4 defconfig 2>&1)`
+	if [ $? -ne 0 ]; then
+		echo "$OUT"
+		exit 1
+	fi
+	# Without CONFIG_NETFILTER kernel does not build.
+	(cd $LINUX; sed -i "s@# CONFIG_NETFILTER is not set@CONFIG_NETFILTER=y@g" .config)
+	(cd $LINUX; make ARCH=$2 CROSS_COMPILE=$3 CFLAGS=$4 olddefconfig)
+	echo "cd $LINUX; make"
+	OUT=`(cd $LINUX; make ARCH=$2 CROSS_COMPILE=$3 CFLAGS=$4 init/main.o 2>&1)`
+	if [ $? -ne 0 ]; then
+		echo "$OUT"
+		exit 1
+	fi
+	for F in $FILES; do
+		echo "extracting from $F"
+		bin/syz-extract -arch $1 -linux "$LINUX" -linuxbld "$LINUXBLD" "sys/linux/$F"
+		if [ $? -ne 0 ]; then
+			exit 1
+		fi
+	done
+	echo
+}
+
+# $1 Go arch
+# $2 kernel arch
+# $3 cross-compiler prefix
+# $4 CLAGS
+generate_arch amd64 x86_64 x86_64-linux-gnu- "-m64"
+generate_arch arm64 arm64 aarch64-linux-gnu- ""
+if [ "$BUILD_FOR_ANDROID" == "no" ]; then
+	generate_arch 386 i386 "" "-m32"
+	generate_arch arm arm arm-linux-gnueabihf- "-march=armv6t2"
+	generate_arch ppc64le powerpc powerpc64le-linux-gnu- ""
+fi