tools/virtio/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 all: test mod
   3 test: virtio_test vringh_test
   4 virtio_test: virtio_ring.o virtio_test.o
   5 vringh_test: vringh_test.o vringh.o virtio_ring.o
   6
   7 try-run = $(shell set -e;               \
   8         if ($(1)) >/dev/null 2>&1;      \
   9         then echo "$(2)";               \
  10         else echo "$(3)";               \
  11         fi)
  12
  13 __cc-option = $(call try-run,\
  14         $(1) -Werror $(2) -c -x c /dev/null -o /dev/null,$(2),)
  15 cc-option = $(call __cc-option, $(CC),$(1))
  16
  17 CFLAGS += -g -O2 -Werror -Wno-maybe-uninitialized -Wall -I. -I../include/ -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -include ../../include/linux/kconfig.h $(call cc-option,-mfunction-return=thunk) $(call cc-option,-fcf-protection=none) $(call cc-option,-mindirect-branch-register)
  18
  19 CFLAGS += -pthread
  20 LDFLAGS += -pthread
  21 vpath %.c ../../drivers/virtio ../../drivers/vhost
  22 mod:
  23         ${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test V=${V}
  24
  25 #oot: build vhost as an out of tree module for a distro kernel
  26 #no effort is taken to make it actually build or work, but tends to mostly work
  27 #if the distro kernel is very close to upstream
  28 #unsupported! this is a development tool only, don't use the
  29 #resulting modules in production!
  30 OOT_KSRC=/lib/modules/$$(uname -r)/build
  31 OOT_VHOST=`pwd`/../../drivers/vhost
  32 #Everyone depends on vhost
  33 #Tweak the below to enable more modules
  34 OOT_CONFIGS=\
  35         CONFIG_VHOST=m \
  36         CONFIG_VHOST_NET=n \
  37         CONFIG_VHOST_SCSI=n \
  38         CONFIG_VHOST_VSOCK=n \
  39         CONFIG_VHOST_RING=n
  40 OOT_BUILD=KCFLAGS="-I "${OOT_VHOST} ${MAKE} -C ${OOT_KSRC} V=${V}
  41 oot-build:
  42         echo "UNSUPPORTED! Don't use the resulting modules in production!"
  43         ${OOT_BUILD} M=`pwd`/vhost_test
  44         ${OOT_BUILD} M=${OOT_VHOST} ${OOT_CONFIGS}
  45
  46 oot-clean: oot-build
  47 oot: oot-build
  48 oot-clean: OOT_BUILD+=clean
  49
  50 .PHONY: all test mod clean vhost oot oot-clean oot-build
  51 clean:
  52         ${RM} *.o vringh_test virtio_test vhost_test/*.o vhost_test/.*.cmd \
  53               vhost_test/Module.symvers vhost_test/modules.order *.d
  54 -include *.d