[Crash-utility] [PATCH v3 3/3] memory_driver: Support overriding kernel directory

Support compiling the module against a different kernel version than the currently running one by allowing to set either KVER or KDIR variables on the make commandline. Also modernize the makefile slightly and make use of the kernel's 'clean' target to ensure to remove all generated files. Signed-off-by: Mathias Krause <minipli(a)grsecurity.net&gt; --- memory_driver/Makefile | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/memory_driver/Makefile b/memory_driver/Makefile index d0f3ccc912f4..61ee7c03e858 100644 --- a/memory_driver/Makefile +++ b/memory_driver/Makefile @@ -8,9 +8,14 @@ # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # +ifneq ($(KERNELRELEASE),) obj-m := crash.o +else PWD := $(shell pwd) +KVER ?= $(shell uname -r) +KDIR ?= /lib/modules/${KVER}/build all: - make -C /lib/modules/`uname -r`/build M=${PWD} SUBDIRS=${PWD} modules + ${MAKE} -C ${KDIR} M=${PWD} SUBDIRS=${PWD} modules clean: - rm -f *.mod.c *.ko *.o Module.* + test -e ${KDIR}/Makefile && ${MAKE} -C ${KDIR} M=${PWD} SUBDIRS=${PWD} clean || ${RM} *.mod.c *.ko *.o Module.* +endif -- 2.30.2