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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@grsecurity.net>
This commit is contained in:
Mathias Krause 2023-09-28 11:19:08 +02:00 committed by Kazuhito Hagio
parent 1cfd513ea9
commit 578fc08b82
1 changed files with 7 additions and 2 deletions
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9
memory_driver/Makefile
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@ -8,9 +8,14 @@
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details. # GNU General Public License for more details.
# #
ifneq ($(KERNELRELEASE),)
obj-m := crash.o obj-m := crash.o
else
PWD := $(shell pwd) PWD := $(shell pwd)
KVER ?= $(shell uname -r)
KDIR ?= /lib/modules/${KVER}/build
all: all:
make -C /lib/modules/`uname -r`/build M=${PWD} SUBDIRS=${PWD} modules ${MAKE} -C ${KDIR} M=${PWD} SUBDIRS=${PWD} modules
clean: 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