Commit d5f5ee2a authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

tools/virtio: option to build an out of tree module 



Handy for testing with distro kernels.
Warn that the resulting module is completely unsupported,
and isn't intended for production use.

Usage:
        make oot # builds vhost_test.ko, vhost.ko
        make oot-clean # cleans out files created

Acked-by: default avatarJason Wang <jasowang@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 16fbf79b

tools/virtio/Makefile

+26 −1
Original line number Diff line number Diff line
@@ -8,7 +8,32 @@ CFLAGS += -g -O2 -Werror -Wall -I. -I../include/ -I ../../usr/include/ -Wno-poin 
vpath %.c ../../drivers/virtio ../../drivers/vhost

mod:

	${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test V=${V}

.PHONY: all test mod clean



#oot: build vhost as an out of tree module for a distro kernel

#no effort is taken to make it actually build or work, but tends to mostly work

#if the distro kernel is very close to upstream

#unsupported! this is a development tool only, don't use the

#resulting modules in production!

OOT_KSRC=/lib/modules/$$(uname -r)/build

OOT_VHOST=`pwd`/../../drivers/vhost

#Everyone depends on vhost

#Tweak the below to enable more modules

OOT_CONFIGS=\

	CONFIG_VHOST=m \

	CONFIG_VHOST_NET=n \

	CONFIG_VHOST_SCSI=n \

	CONFIG_VHOST_VSOCK=n

OOT_BUILD=KCFLAGS="-I "${OOT_VHOST} ${MAKE} -C ${OOT_KSRC} V=${V}

oot-build:

	echo "UNSUPPORTED! Don't use the resulting modules in production!"

	${OOT_BUILD} M=`pwd`/vhost_test

	${OOT_BUILD} M=${OOT_VHOST} ${OOT_CONFIGS}



oot-clean: oot-build

oot: oot-build

oot-clean: OOT_BUILD+=clean



.PHONY: all test mod clean vhost oot oot-clean oot-build

clean:

	${RM} *.o vringh_test virtio_test vhost_test/*.o vhost_test/.*.cmd \

              vhost_test/Module.symvers vhost_test/modules.order *.d

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